CN203236257U - Special clamp for stably clamping gas inlet pipe of engine - Google Patents

Abstract

The utility model relates to a special clamp capable of stably clamping an engine intake pipe. It is composed of a clamp body, a double-headed stud, and a pressing plate, and the pressing force is provided by a fastening nut. It can stably clamp the engine intake pipe to facilitate the processing of the waist-shaped surface and 39° surface of the intake pipe. The position of the workpiece is the same for each clamping, and two workpieces can be clamped at the same time. High work efficiency, simple structure and convenient clamping operation. Long life, high stability of the workpiece. It can effectively fix and clamp special-shaped workpieces such as engine intake pipes.

Description

An engine intake pipe clamp

technical field

The utility model relates to a mechanical processing equipment, and relates to the technology of a machine tool clamp, in particular to a special clamp for an engine intake pipe. the

Background technique

The currently known clamps are composed of positioning elements, clamping devices and clamp bodies. The clamps use the principle of levers. The force arm on one side of the center point is multiplied by the force acting on the force arm, which is equal to the length of the force arm on the other side. Multiplied by the force acting on the clamped item, relying on the pressure of the clamping device to fix the clamped item. However, the single structure of the traditional fixture is mainly aimed at objects with relatively regular geometric shapes, so it is difficult for ordinary fixtures to achieve reliable fixation of special-shaped workpieces at special angles, which will cause the engine intake pipe to fall off and be damaged during processing. Those that can hold a single workpiece have low processing efficiency. the

Contents of the invention

In order to overcome the disadvantages that the existing clamps cannot effectively fix the engine intake pipe and can only clamp one workpiece at a time, the utility model provides a clamp, which can effectively fix the engine intake pipe and facilitate the waist shape of the engine intake pipe at the same time. Surface and 39° surface processing. the

The technical scheme adopted by the utility model to solve the technical problem is: a clamp, which is composed of a positioning element, a clamping device and a clamping body, etc., uses the principle of leverage to fix the clamped object by the pressure of the clamping device, and the positioning element is composed of Consisting of cylindrical pins and chamfered pins, the clamping device is composed of a pressure plate, a fastening nut, a spring, a spring positioning nut, a stud, and a thrust nut. One end of the stud is fixed on the bottom plate of the clamp body through a threaded connection. The upper end of the double-ended stud passes through the waist hole of the pressure plate and partially fixes the pressure plate with the fastening nut. Two support plates A and two support plates B form a set of support devices. Two sets of support devices are fixed on the clamp body, which are placed on both sides of the double-ended studs. The support plates are fixed on the clamp body through positioning pins and threaded connections. On the bottom plate, a waist hole is processed in the middle of the pressure plate. The width of the waist hole is not more than 0.5mm larger than the diameter of the upper end of the double-headed stud. A pin hole and a pair of countersink holes are processed on the support plate A, and a pair of countersink holes are processed on the support plate B. . The upper end of the double-ended stud is screwed into the spring positioning nut, the spring, the pressing plate and the fastening nut in sequence. Screw in a thrust nut above the joint between the double-ended stud and the bottom plate. When installing, the support plates are arranged in a straight line. Two support plates A are placed at 150mm from the central axis at both ends, and two support plates B are placed at The middle part is 40mm away from the central axis, the first set of supporting devices is placed parallel to the side of the bottom plate, and the other set of supporting devices is placed at an angle of 39° with the side of the bottom plate. By tightening the fastening nut to apply pressure to the workpiece to make it completely positioned, it is convenient to process the waist surface of the intake pipe. the

The beneficial effect of the utility model is that the engine intake pipe can be stably clamped to facilitate the processing of the waist-shaped surface and the 39° surface, and the position of the workpiece is the same for each clamping, and the work efficiency is high when processing two surfaces at the same time in one pass. Simple clamping, convenient operation, long service life of the fixture and high stability of the workpiece. the

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

Fig. 1 is the front view of the utility model

Fig. 2 is the top view of the utility model

Fig. 3 is a sectional view of the pressing plate of the present utility model

Fig. 4 is a sectional view of the support plate A of the present utility model

Figure 5 is a top view of the support plate B of the present utility model

In the figure 10 clip body 11 fastening nut 12 pressure plate 13 spring 14 spring positioning nut 15 double-headed stud 16 thrust nut 17 workpiece 21 support plate A 22 support plate B 23 trimming pin 24 cylindrical pin 30 waist hole 41 pin hole 42 Spigot

Detailed ways

As shown in Figure 1 and Figure 2, the utility model consists of clamp body 10, fastening nut 11, pressing plate 12, spring 13, spring positioning nut 14, stud 15, thrust nut 16, support plate A21, support plate B22 , Trimming pin 23, cylindrical pin 24 are combined. Wherein clamp body 10, fastening nut 11, pressure plate 12, spring 13, spring positioning nut 14, double-ended stud 15, thrust nut 16 constitute the clamping device, and one end of double-ended stud 15 is fixed on the clamp body 10 by threaded connection On the bottom plate, a thrust nut 16 is screwed in above the screw joint, and the upper end of the double-ended stud 15 is screwed into the spring positioning nut 14, spring 13, pressing plate 12, and fastening nut 11 in turn, wherein the upper end of the double-ended stud 15 passes through The waist hole 30 of the pressing plate 12 fixes the pressing plate 12 with the fastening nut 11 part. Two support plates A21 and two support plates B22 constitute a set of support devices, and the support plates are arranged in a straight line during installation, wherein the two support plates A21 are placed at both ends at a distance of 150 mm from the central axis, and the two support plates B22 are placed at a distance of 150 mm from the central axis. At the center axis 40mm, as shown in Figure 4, pin holes 41 and countersink holes 42 are processed on the support plate A, as shown in Figure 5, countersink holes 42 are processed on the support plate B, and two groups of clamps are fixed on the clamp body 10. Supporting devices are placed on both sides of the double-ended studs 15. The first group of supporting devices is placed parallel to the side of the bottom plate, and the other group of supporting devices is placed at an angle of 39° with the side of the bottom plate. As shown in Figure 2, the support plate is fixed on the bottom plate of the clamp body 10 through positioning pins and threaded connections. On the 21, a cylindrical pin 24 is arranged on the other side and the chamfering pin 23 is arranged. As shown in Figure 3, the middle part of the pressing plate 12 is processed with a waist hole 30. The width of the waist hole 30 is greater than the diameter of the upper end of the stud 15 and does not exceed 0.5mm. When in use, first screw the fastening nut 11 upwards, and the pressure plate 12 is in a non-working state. Rotate the pressure plate 12 around the stud 15 to be parallel to the side of the bottom plate. At this time, the clamp is in an open state, and the two engine intake pipes are passed through Trimming pin 23, cylindrical pin 24 are fixed on two groups of support plates, and the pin hole on the workpiece 17 is matched for processing, cooperates with the small gap installation of positioning pin. Rotate the pressure plate 12 around the double-ended stud 15 to the top of the workpiece 17 on the left and right sides so that the pressure plate 12 is perpendicular to the bottom side, and tighten the fastening nut 11 downward to provide a compressive force to make the pressure plate 12 press the workpiece 17, so that the workpiece 17 to achieve full constraint. the

Claims (6)

1. engine charge pipe clamp, by setting element, clamping device and clamp body combine, it is characterized in that: setting element is by straight pin (24), chamfered edge pin (23) consists of, clamping device is by pressing plate (12), clamp nut (11), spring (13), spring setscrew nut (14), studs (15), Thrust nut (16) consists of, studs (15) one ends are threaded connection and are fixed on clamp body (10) base plate, wherein the same clamp nut in waist hole (30) (11) the partial fixing pressing plate (12) of pressing plate (12) is passed in studs (15) upper end, two gripper shoe A(21) and two gripper shoe B(22) consist of one group of bracing or strutting arrangement, be fixed with two groups of bracing or strutting arrangements on the clamp body (10), split the both sides in studs (15), gripper shoe is fixed on clamp body (10) base plate with being threaded by alignment pin, pressing plate (12) middle part is processed with waist hole (30). and waist hole (30) width is no more than 0.5mm greater than studs (15) upper end diameter, be processed with pin-and-hole (41) and a pair of counter sink (42) on the gripper shoe A (21), be processed with a pair of counter sink (42) on the gripper shoe B.

2. engine charge pipe clamp according to claim 1 is characterized in that: screw in successively spring setscrew nut (14), spring (13), pressing plate (12), clamp nut (11) on the studs (15).

3. engine charge pipe clamp according to claim 1 is characterized in that: screw the top, place at studs (15) and base plate and screw in a Thrust nut (16).

4. engine charge pipe clamp according to claim 1, it is characterized in that: the gripper shoe straight line is arranged during installation, wherein two gripper shoe A (21) are placed on two ends far from axis 150mm place, and two gripper shoe B (22) are placed in the middle part apart from axis 40mm place.

5. engine charge pipe clamp according to claim 1 is characterized in that: first group of bracing or strutting arrangement is parallel to the base plate side to be placed, and another group bracing or strutting arrangement is with 39 ° of placements of angle of base plate side.

6. engine charge pipe clamp according to claim 1, it is characterized in that: the little matched in clearance of straight pin (24) chamfered edge pin (23) is placed on the gripper shoe (21), need guarantee that when alignment pin is installed the gripper shoe (21) of a side settles straight pin (24) opposite side to settle chamfered edge pin (23).

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