CN115673349A - A kind of bending joint turning processing equipment - Google Patents

Abstract

The invention provides a turning processing device for a bent connector, which comprises a workbench, a processing chamber, a numerical control turning assembly, a clamp holder and a limiting stopper, wherein the processing chamber is fixed on the upper side of the workbench; the limiting device comprises a limiting ring, a plurality of arc-shaped pushing plates and an adjuster, wherein the pushing plates are arranged in the limiting ring and are arranged coaxially with the limiting ring, a plurality of elastic plates are radially fixed on concave surfaces of the pushing plates, the adjuster is fixed in the middle of convex surfaces of the pushing plates, and free ends of the adjuster penetrate through the inner side and the outer side of the limiting ring and are used for adjusting the distance between the pushing plates and the limiting ring. The invention solves the problem of unstable clamping caused by the difficulty in overcoming the centrifugal force in the prior art.

Description

A kind of bending joint turning processing equipment

technical field

The invention relates to the technical field of mechanical processing, in particular to a turning processing equipment for an elbow joint.

Background technique

Turning is lathe processing. Lathe processing is a part of mechanical processing. Lathe processing mainly uses turning tools to turn rotating workpieces, that is, the tool does not move and the workpiece rotates at high speed. This is feasible for straight workpieces, but for The surface turning processing of curved shaft workpieces cannot be realized, because different parts of this type of workpiece have different axes, which will generate huge centrifugal force when rotating, making the chuck unable to stably clamp the workpiece, so most of the prior art One of the shafts is turned first, and then the processed shaft is used as a reference, and the five-axis CNC turning component is offset and then milled. Low efficiency, not suitable for mass production.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a turning processing equipment for an elbow joint, which solves the problem in the prior art that it is difficult to overcome the centrifugal force, resulting in unstable clamping.

According to an embodiment of the present invention, an elbow joint turning processing equipment device includes a worktable, a processing chamber, a numerically controlled turning assembly, a clamper and a stopper, the processing chamber is fixed on the upper side of the worktable, and the The CNC turning assembly and the limiter are respectively fixed at opposite ends of the processing chamber, and the clamper is installed in the middle of the processing chamber and coaxially arranged with the limiter for clamping the workpiece and adjusting the inclination of the workpiece angle and drive the workpiece to rotate;

The limiter includes a limit ring, a plurality of arc-shaped push plates and an adjuster, the push plate is placed in the limit ring and coaxially arranged with the limit ring, and the concave surface of the push plate is fixed radially There are a plurality of elastic plates, the adjuster is fixed in the middle of the convex surface of the push plate, and the free end of the adjuster runs through the inner and outer sides of the limit ring for adjusting the distance between the push plate and the limit ring.

Preferably, the adjuster includes a screw and an adjusting disc, one end of the screw is fixedly connected to the push plate, the other end runs through the inner and outer sides of the positioning ring and is placed outside the limit ring, and the adjusting disc is threaded on the The screw rod is connected with the bearing of the limit ring. The side of the adjustment disc away from the limit ring is fixed with a plurality of first limit posts at intervals along the edge of the adjustment disc. The rotation sleeve on the limit ring is provided with an adjustment ring. A plurality of second limiting posts are fixed at intervals on one edge of the adjusting ring, and the first limiting posts can be embedded in the gaps between the second limiting posts.

Preferably, both the first limit post and the second limit post are cylindrical, the axis of the first limit post is perpendicular to the surface of the adjustment disc, and the axis of the second limit post and the first limit post The axes of the columns are perpendicular to each other.

Preferably, the clamper includes a rotating drum, a three-jaw chuck, a positioner, and a motor, the three-jaw chuck is placed in the middle of the rotating drum and coaxially arranged with the rotating drum, and the center of the inner wall of the rotating drum is symmetrical The bearing is connected with two rotating columns, and the free ends of the rotating columns are fixedly connected with the sides of the three-jaw chuck, and the upper and lower ends of the inner wall of the rotating drum are fixed with a positioner, and the positioner The free end of the rotating cylinder is in conflict with the three-jaw chuck, a guide ring is provided on both ends of the rotating cylinder, a transmission ring is provided on the fixed sleeve in the middle, and the motor is fixed on the outer top side of the processing chamber. The output end of the motor is fixed with a transmission wheel, the transmission wheel and the transmission ring are connected by a conveyor belt and the conveyor belt runs through the upper side of the processing chamber.

Preferably, the positioner includes a fixed base, a telescopic rod and a nut, the base is fixed on the inner side wall of the drum, the telescopic rod is slidably inserted into the end of the base away from the drum, and the nut is threaded on the One end of the telescopic rod is connected to the base with a bearing, and the end of the telescopic rod away from the base is a round head.

Preferably, the guide ring includes a positioning ring and a support column, one end of the positioning ring is provided with a flange extending inwardly, and the edges at both ends of the rotating drum are in conflict with the flanges of the two positioning rings, so The upper and lower ends of the positioning ring are fixed with one support column, and the free ends of the support columns at the upper and lower ends are respectively fixedly connected with the upper side wall of the processing chamber and the workbench.

Compared with the prior art, the present invention has the following beneficial effects:

First turn the workpiece to complete a section of axis, the turned axis is the first axis, and the unturned axis is the second axis, then use the clamp to clamp the connection between the first axis and the second axis and adjust the inclination of the entire workpiece Angle, so that the second shaft is in a horizontal state, the first shaft is inclined, and at the same time, the end of the first shaft away from the second shaft is placed in the limit ring, and the adjustment between each push plate and the limit ring is adjusted by the regulator. distance, so that the end of the first axis always squeezes the elastic plate to bend the elastic plate, and then the holder drives the workpiece to rotate. At this time, the second axis and the holder rotate coaxially on the horizontal plane, and the first axis rotates eccentrically. During the rotation process, the end of the first shaft will make a circular motion around the center of the limit ring, and continuously squeeze the surrounding elastic plate, and overcome the centrifugal force during the rotation of the first shaft through the resistance and resilience of the elastic plate , so that the entire workpiece will not be clamped unstable due to excessive centrifugal force during the rotation process. At this time, the second axis of the workpiece can be processed by ordinary CNC machine tool turning equipment, and the five-axis CNC lathe is no longer needed , high processing efficiency and low cost.

Description of drawings

Fig. 1 is a structural diagram of processing equipment according to an embodiment of the present invention.

Fig. 2 is a structural diagram of a holder according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a stopper according to an embodiment of the present invention.

Fig. 4 is a side view of the limiter of the embodiment of the present invention.

In the above drawings: console 1, mounting arm 2, processing chamber 3, support column 4, conveyor belt 5, motor 6, second shaft 7, positioning ring 8, drum 9, three-jaw chuck 10, first shaft 11. Limiting ring 12, adjusting ring 13, workbench 14, base 15, telescopic rod 16, nut 17, rotating column 18, elastic plate 19, second limiting column 20, first limiting column 21, screw rod 22, Adjustment disc 23, push plate 24.

Detailed ways

The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 4, the embodiment of the present invention proposes a turning processing equipment device for elbow joints, including a workbench 14, a processing chamber 3, a numerically controlled turning assembly, a clamper and a stopper, and the processing chamber 3 Fixed on the upper side of the workbench 14, the CNC turning assembly and the limiter are respectively fixed at the opposite left and right ends of the processing chamber 3, and the clamper is installed in the middle of the processing chamber 3 and coaxially arranged with the limiter for Clamp the workpiece, adjust the inclination angle of the workpiece and drive the workpiece to rotate;

The limiter includes a limit ring 12, a plurality of arc-shaped push plates 24 and a regulator, the push plate 24 is placed in the limit ring 12 and coaxially arranged with the limit ring 12, and the concave surface of the push plate 24 is fixed radially There are a plurality of elastic plates 19, and the adjuster is fixed in the middle of the convex surface of the push plate 24. The free end of the adjuster runs through the inner and outer sides of the limit ring 12 for adjusting the distance between the push plate 24 and the limit ring 12.

The CNC turning assembly is an existing technology, which is the same as the CNC turning assembly adopted by the CNC machine tool (common type) of the model CK6150, including a console 1 and an installation arm 2. The staff can install various suitable turning tools on the installation arm 2. Tool or drill rod, and the movement of the mounting arm 2 is controlled by the console 1 to turn the workpiece.

First turn the workpiece to complete a section of the shaft, the turned shaft is the first shaft 11, and the unturned shaft is the second shaft 7, then use the clamp to clamp the connection between the first shaft 11 and the second shaft 7 and adjust The inclination angle of the whole workpiece makes the second shaft 7 be in a horizontal state, and the first shaft 11 is inclined. At the same time, the right end of the first shaft 11 is placed in the limit ring 12, and each push plate 24 is adjusted with the adjuster. The distance between the limit rings 12 is such that the right end of the first shaft 11 always squeezes the elastic plate 19 to bend the elastic plate 19, and then the clamper drives the workpiece to rotate. At this time, the second shaft 7 is the same as the clamper. The shaft rotates on the horizontal plane, and the first shaft 11 rotates eccentrically. During the rotation, the right end of the first shaft 11 will make a circular motion around the center of the limit ring 12, and constantly squeeze the surrounding elastic plate 19, through the elastic The hindrance and resilience of the plate 19 are used to overcome the centrifugal force during the rotation of the first shaft 11, so that the entire workpiece will not be clamped unstable due to excessive centrifugal force during the rotation. The equipment can process the second axis 7 of the workpiece, eliminating the need for a five-axis CNC lathe, with high processing efficiency and low cost.

The regulator includes a screw 22 and an adjusting disc 23. One end of the screw 22 is fixedly connected to the push plate 24, and the other end runs through the inner and outer sides of the positioning ring 8 and is placed outside the limit ring 12. The adjusting disc 23 is threaded on the screw 22. and connected with the limit ring 12 bearings, the side of the adjustment disc 23 away from the limit ring 12 is fixed with a plurality of first limit posts 21 at intervals along the edge of the adjustment disc 23, and the rotation sleeve on the limit ring 12 is provided with an adjustment ring 13 , one end edge of the adjustment ring 13 is fixed with a plurality of second limit posts 20 at intervals, and the first limit posts 21 can be embedded in the gap between the second limit posts 20; the first limit posts 21 and the second stop posts The columns 20 are all cylindrical, the axis of the first limiting column 21 is perpendicular to the surface of the adjusting disc 23 , the axis of the second limiting column 20 and the axis of the first limiting column 21 are perpendicular to each other.

Since all the first limit posts 21 are fixed at intervals along the edge of the adjustment disc 23 to form a circle, and the first limit posts 21 can be embedded in the gap between the second limit posts 20, therefore, the adjustment ring 13 rotates At this time, the second limit post 20 is driven to move, which will push the first limit post 21 to move, thereby promoting the adjustment disc 23 to rotate, and the rotation of the adjustment disc 23 will make the screw rod 22 move up and down, and adjust the distance between the push plate 24 and the limit ring 12. Adjust the distance between the end of the elastic plate 19 and the center of the limit ring 12 as much as possible, so that the end of the first shaft 11 located in the limit ring 12 is always in the gap between the elastic plates 19, so that the workpiece When rotating, the end of the first shaft 11 makes a circular motion along the concave surface of the push plate 24 (the center of the limit ring 12), and under the resistance of the elastic plate 19 and the rebound force, it overcomes the first shaft 11 during the rotation process. The resulting centrifugal force ensures stable clamping.

As shown in Figures 1 and 2, the gripper includes a drum 9, a three-jaw chuck 10, a positioner, and a motor 6. The three-jaw chuck 10 is placed in the middle of the drum 9 and coaxially arranged with the drum 9. The drum 9 The central symmetrical bearing on the inner wall is connected with two rotating columns 18, and the free ends of the rotating columns 18 are all fixedly connected with the sides of the three-jaw chuck 10, and a locator is fixed on the upper and lower ends of the inner wall of the rotating cylinder 9, and the positioning The free end of the device is in conflict with the three-jaw chuck 10, a guide ring is provided on both ends of the rotating drum 9, a transmission ring is provided on the fixed sleeve in the middle, and the motor 6 is fixed on the outer top side of the processing chamber 3. The output end of 6 is fixed with transmission wheel, and transmission wheel and transmission ring are connected by conveyor belt 5 and conveyor belt 5 runs through the upper side of processing chamber 3; Rotation column 18 and locator are not on the same vertical plane.

Three-jaw chuck 10 is prior art, adopts the three-jaw chuck 10 that the model that Sanchuan Company manufactures is 3B-10A6, utilizes three-jaw chuck 10 to clamp the junction of first shaft 11 and second shaft 7, and then Synchronously adjust the locator so that the locators at the upper and lower ends extend and contract respectively, so that the three-jaw chuck 10 rotates around the rotating column 18. Simultaneously, since the rotating column 18 and the locator are not on the same vertical plane, the locator will not be adjusted without adjusting the locator. Under the premise of its extension or contraction, the three-jaw chuck 10 will not rotate, and the inclination angle of the three-jaw chuck 10 is fixed, and then the motor 6 is started to drive the transmission wheel to rotate, so as to drive the drum 9 to rotate in the guide ring, which can Drive the three-jaw chuck 10 and the workpiece to rotate.

The positioner includes a fixed base 15, a telescopic rod 16 and a nut 17. The base 15 is fixed on the inner side wall of the drum 9. The telescopic rod 16 is slidably inserted into the end of the base 15 away from the drum 9. The nut 17 is threaded on the telescopic rod. 16 and the bearing is connected to an end of the base 15, and the end of the telescopic rod 16 away from the base 15 is a round head.

Turning the nut 17 can make the screw rod 22 expand and contract. Therefore, when adjusting the degree of expansion and contraction of the screw rod 22, the regulators at the upper and lower ends should be adjusted synchronously to avoid inconsistencies in the angles at which the two ends extend or contract respectively, resulting in failure to adjust the three-jaw chuck 10. Stable limit fixing is carried out, and at the same time, the end of the telescopic rod 16 close to the three-jaw chuck 10 is a round head, so the collision between the telescopic rod 16 and the three-jaw chuck 10 is a point-to-point contact, no matter how the three-jaw chuck 10 is tilted , the telescopic rod 16 can be in close contact with the three-jaw chuck 10, and the positioning of the three-jaw chuck 10 will not be unstable due to irregular protrusions on the surface of the workpiece.

The guide ring includes a positioning ring 8 and a support column 4. One end of the positioning ring 8 is provided with a flange extending inwardly. A support column 4 is fixed at both ends, and the free ends of the support columns 4 at the upper and lower ends are respectively fixedly connected to the upper side wall of the processing chamber 3 and the workbench 14 .

Both ends of the rotating drum 9 are set with positioning rings 8, and under the restriction of the flange, it can be ensured that the rotating drum 9 will not move left and right when rotating.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (7)

1. An elbow joint turning processing equipment, characterized in that: it includes a workbench, a processing chamber, a numerical control turning assembly, a clamper and a stopper, the processing chamber is fixed on the upper side of the workbench, and the numerical control turning The assembly and the limiter are respectively fixed at opposite ends of the processing chamber, and the clamper is installed in the middle of the processing chamber and coaxially arranged with the limiter for clamping the workpiece, adjusting the inclination angle of the workpiece and driving workpiece rotation; The limiter includes a limit ring, a plurality of arc-shaped push plates and an adjuster, the push plate is placed in the limit ring and coaxially arranged with the limit ring, and the concave surface of the push plate is fixed radially There are a plurality of elastic plates, the adjuster is fixed in the middle of the convex surface of the push plate, and the free end of the adjuster runs through the inner and outer sides of the limit ring for adjusting the distance between the push plate and the limit ring. 2. The bending joint turning processing equipment according to claim 1, characterized in that: the adjuster includes a screw and an adjusting disc, one end of the screw is fixedly connected with the push plate, and the other end runs through the inner and outer sides of the positioning ring. side and placed on the outside of the limit ring, the adjustment disc is threaded on the screw and connected with the limit ring bearing, the side of the adjustment disc away from the limit ring is fixed at intervals along the edge of the adjustment disc with a plurality of first A limit post, an adjustment ring is set on the limit ring, and a plurality of second limit posts are fixed on the edge of one end of the adjustment ring at intervals, and the first limit post can be embedded in the second limit post in the gap between. 3. A bending joint turning processing equipment according to claim 2, characterized in that: the first limiting column and the second limiting column are both cylindrical, and the axis of the first limiting column is perpendicular to Adjusting the surface of the disk, the axis of the second limiting post and the axis of the first limiting post are perpendicular to each other. 4. A turning processing equipment for elbow joints according to claim 1, characterized in that: the clamper includes a rotating drum, a three-jaw chuck, a positioner, and a motor, and the three-jaw chuck is placed on the rotating drum The middle part is arranged coaxially with the drum, and the center symmetrical bearing on the inner wall of the drum is connected with two rotating columns, and the free ends of the rotating columns are fixedly connected with the sides of the three-jaw chuck, and the inner side of the rotating drum The upper and lower ends of the wall are fixed with a locator, the free end of the locator is in conflict with the three-jaw chuck, the two ends of the drum are rotatably provided with a guide ring, and the middle fixed sleeve is provided with a guide ring. The transmission ring, the motor is fixed on the outer top side of the processing chamber, the output end of the motor is fixed with a transmission wheel, the transmission wheel and the transmission ring are connected by a conveyor belt and the conveyor belt runs through the upper side of the processing chamber. 5. A bending joint turning processing equipment as claimed in claim 4, characterized in that: the positioner includes a fixed base, a telescopic rod and a nut, the base is fixed on the inner wall of the drum, and the telescopic rod The end of the base away from the drum is slidably inserted, the nut is threaded on the telescopic rod and is bearing-connected to one end of the base, and the end of the telescopic rod away from the base is a round head. 6. A turning processing equipment for an elbow joint according to claim 4, wherein the guide ring includes a positioning ring and a support column, one end of the positioning ring is provided with a flange extending inwardly, and the rotating The edges of the two ends of the barrel are respectively in conflict with the flanges of the two positioning rings, and the upper and lower ends of the positioning ring are fixed with one of the support columns, and the free ends of the support columns at the upper and lower ends are respectively in contact with the upper side of the processing chamber. The wall and the workbench are fixedly connected. 7. The turning processing equipment for an elbow joint according to claim 4, wherein the rotating column and the positioner are not on the same vertical plane.

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