CN106736181A - A kind of EMUs buffer board support stick constitutes positioner and installation method - Google Patents

Abstract

The present invention relates to a positioning device and installation method for EMU buffer plate support rods, including a base, a base fixing part arranged on the base, a flange positioning part and a support rod fixing and positioning part, the base and the support The mounting seat composed of rods is fixedly connected through the base fixing part, and the support rod flange is sandwiched between the base and the mounting seat composed of support rods. After the base and the mounting seat composed of support rods are fixed, the flange of the support rod The disk is positioned on the mounting seat of the support rod through the flange positioning part, and the support rod body is arranged at the welding position of the support rod flange, and the fixed position is fixed or adjusted by the support rod fixing and positioning part. The invention effectively ensures the verticality and concentricity of the installation of the support rods of the EMU, solves the problem of uneven gaps in the end welding grooves, is convenient and reliable in operation, and improves work efficiency.

Description

A positioning device and installation method for forming buffer plate support rods of EMUs

technical field

The invention relates to a positioning device, in particular to a positioning device and an installation method for forming buffer plate support rods of an EMU.

Background technique

The aluminum alloy EMU underframe is the main load-bearing structure of the aluminum alloy EMU, and the obstacle remover and buffer plate are important components of the head car underframe. The mounting seat of the buffer plate and the buffer plate are connected by support rods, and research and assembly are required during the connection. If the size is not well controlled during the research and assembly process, it is easy to cause problems such as skewed support rods, excessive welding gaps, and poor verticality. Very good to play its due role. The support rod is composed of two parts, the first part is the buffer plate support rod body, and the second part is two flanges, which are located at both ends of the support rod. The two parts of the buffer plate support rod are connected by welding, and the overall length needs to be determined according to the relative position of the buffer plate and the mounting seat of the chassis support plate, so it is very important for the positioning and installation of the buffer plate support rod.

The support rod needs to be researched and installed according to the buffer plate on the vehicle, and the support rod should be polished according to the assembly size requirements. The following problems often occur when the support rod is pre-assembled:

(1) After the support rod and the flange are assembled, the gap at the root of the weld is uneven, and there will be a phenomenon that one end has a large gap and one end has no gap; the root gap cannot be well controlled to ensure a uniform gap.

(2) The position and number of tacking welds in the weld groove are not uniform, and there is a phenomenon of repeated welding, which affects the subsequent tackling cleaning and formal welding.

(3) Through tracking and observation, it is found that after the support rod flange and the support rod form the mounting seat during field operation, one person holds the rod body with one hand, and the support rod is pressed against the support rod seat plate below, and the other Measure the position and size of the rod body and the seat plate with one hand. After the size is suitable, the other person performs tack welding. After tack welding, adjust the other end of the rod body to perform tack welding. In this method of operation, if the first tack welding meets the requirements of the process document, the other end cannot be adjusted. If the tack welding is performed, the first spot welding will crack due to the adjustment of the other end when the other end is adjusted. The phenomenon of repeated welding.

(4) When the cold workman measures the perpendicularity between the support rod and the flange, because there are gaps on both sides, his hands are unstable during the lifting process, resulting in poor verticality between the overall support rod and the mounting seat.

Contents of the invention

The main purpose of the present invention is to solve the technical problems in the prior art, and provide a positioning device composed of support rods for buffer plates of EMUs that is easy to operate and improves installation efficiency.

Another main purpose of the present invention is to provide a method for assembling and installing the buffer plate support rods of the EMU.

For realizing the above object, technical scheme of the present invention is:

A positioning device composed of support rods for buffer plates of EMUs, including a base, a base fixing part arranged on the base, a flange positioning part and a support rod fixing and positioning part, the base and the support rods form a mounting seat through the The base fixing part is fixedly connected, and the support rod flange is clamped between the base and the support rod to form the mounting seat. After the base and the support rod form the mounting seat are fixed, the support rod flange passes through the flange The positioning part is positioned on the mounting seat composed of the support rod, and the support rod body is arranged at the welding position of the support rod flange, and the positioning part is fixed or adjusted by the support rod to fix the fixed position.

Further, the base fixing part is a hook assembly provided on the base, and the hook assembly includes two horizontal positioning hooks and one vertical positioning hook.

Further, the flange positioning part includes a horizontal positioning frame and a longitudinal positioning frame protruding outwards arranged on the base. After the base and the support rod form a mounting seat and are fixed, the support rod flange The edges are close to the horizontal positioning frame and the vertical positioning frame.

Further, the base is provided with an observation hole for observing whether there is a gap between the support rod flange and the transverse positioning frame and the longitudinal positioning frame.

Further, the support rod fixing and positioning part includes a plurality of bolts, and the bolt composition includes an L-shaped base fixed on the base, bolts, and lock nuts, and is arranged on one surface of the L-shaped base. There are through holes for bolts to pass through.

Further, the base is in a "concave" shape.

Another technical scheme of the present invention is:

A method for forming and installing the support rods of the buffer plate of the EMU using the above-mentioned positioning device, comprising the following steps:

Step 1. Set the support rod flange between the base and the support rod to form the mounting seat, and fix the base and the support rod to form the mounting seat, and use the flange positioning part to place the support rod flange on the support rod to form the mounting seat upper positioning;

Step 2: After the support rod body is set at the welding position of the support rod flange, the support rod is fixed by the positioning part;

Step 3, welding the support rod body and the support rod flange.

Further, in the first step, the flange plate of the support rod is first clamped on the horizontal positioning frame and the vertical positioning frame, and then the base is fixed on the mounting seat composed of the support rod through the horizontal positioning hook and the vertical positioning hook.

Further, in the first step, observe through the observation hole whether there is a gap between the flange of the support rod and the horizontal positioning frame and the vertical positioning frame, and if there is a gap, the flange of the support rod can be adjusted.

Further, in the second step, the verticality of the rod body of the support rod is detected.

To sum up, the positioning device and installation method for the support rods of the buffer plate of the EMU according to the present invention can effectively ensure the verticality and concentricity of the installation of the EMU support rods, and solve the problem of uneven gap between the end welding grooves , and the operation is convenient and reliable, improving work efficiency.

Description of drawings

Fig. 1 is a structural diagram of the present invention;

Fig. 2 is a schematic diagram of the supporting rod of the head car underframe of the present invention;

Fig. 3 is a schematic diagram of the composition of the support rod of the present invention.

As shown in Figures 1 to 3, the support rod body 1, the support rod flange 2, the base 3, the horizontal positioning hook 4, the vertical positioning hook 5, the horizontal positioning frame 6, the vertical positioning frame 7, and the concentric hole of the flange plate 8. Longitudinal observation hole of flange plate 9. Horizontal observation hole of flange plate 10. Bolt assembly 11.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figures 1 to 3, a positioning device and installation method for the support rod composition of the buffer plate of the EMU according to the present invention is mainly used for the installation of the support rod composition of the buffer plate of the aluminum alloy high-speed EMU. The support rod composition is installed between the buffer plate and the buffer plate mounting seat, and the support rod composition mounting seat is arranged on the buffer plate and the buffer plate mounting seat for installing the support rod composition. The support rod consists of a support rod body 1, two support rod flanges 2, two support rod flanges 2 are located at both ends of the support rod body 1, support rod body 1 and two support rod flanges 2 Connected by welding.

A positioning device composed of support rods for a buffer plate of an EMU, comprising a base 3, a base fixing part arranged on the base 3, a flange positioning part and a supporting rod fixing and positioning part. The base 3 and the supporting rod form the mounting seat and are fixedly connected by the base fixing part, and the supporting rod flange 2 is sandwiched between the base 3 and the supporting rod forming the mounting seat. After the base 3 and the supporting rod form the mounting seat and are fixed, the supporting rod flange 2 is positioned on the supporting rod forming mounting seat through the flange positioning part, and the supporting rod body 1 is set at the welding position of the supporting rod flange 2, Fix or adjust the fixed position by fixing the positioning part through the support rod.

In this embodiment, the base 3 is a stainless steel plate with a thickness of 5mm, which is "concave" and has an opening at the top, the size of which is larger than the diameter of the support rod body 1, which facilitates the installation of the positioning device composed of the buffer plate support rod of the EMU and disassembly.

The base fixing part is a hook assembly arranged on the base 3 , and the hook assembly includes two horizontal positioning hooks 4 and one longitudinal positioning hook 5 . Two horizontal positioning hooks 4 are arranged on the upper part of the base 3 , and a longitudinal positioning hook 5 is arranged on the left side of the base 3 . The base 3 can be fixed on the supporting rod assembly seat by two horizontal positioning hooks 4 and a vertical positioning hook 5, wherein the vertical positioning hook 5 provides a left limit, and the horizontal positioning hook 4 prevents the base 3 from falling off.

The flange positioning component includes a horizontal positioning frame 6 and a vertical positioning frame 7 , and the horizontal positioning frame 6 and the vertical positioning frame 7 are structures arranged on the base 3 and protruding outward. The horizontal positioning frame 6 and the vertical positioning frame 7 are arranged on one side facing the supporting rod to form the mounting seat, and their outer contours match the outer contour of the supporting rod flange 2, so that the edge of the supporting rod flange 2 can be close to the lateral positioning frame 6 , on the vertical positioning frame 7.

The size of the horizontal positioning frame 6 and the vertical positioning frame 7 is set according to the needs, and it needs to be satisfied when the base 3 is fixed on the support rod to form the mounting seat, and the edge of the support rod flange 2 is close to the horizontal positioning frame 6 and the vertical positioning frame 7 , the support rod flange 2 is aligned with the center of the buffer plate to complete the positioning.

Four flange concentric holes 8 , two flange longitudinal observation holes 9 , and two flange transverse observation holes 10 are arranged on the base 3 .

The four flange concentric holes 8 correspond to the holes on the support rod flange 2 and the positions of the fixing holes on the support rod assembly seat. After the support rod flange 2 is positioned, the center of the holes on the above three parts Positive.

Two flange plate longitudinal observation holes 9 and two flange plate transverse observation holes 10 are set facing the side of the support rod body 1 for observing whether the support rod flange 2 and the transverse positioning frame 6 and the longitudinal positioning frame 7 exist gap. The position of the longitudinal observation hole 9 of the flange corresponds to the position of the longitudinal positioning frame 7, and it is possible to observe whether there is a gap between the support rod flange 2 and the longitudinal positioning frame 7; Corresponding positions, it can be observed whether there is a gap between the support rod flange 2 and the lateral positioning frame 6.

When installing the positioning device composed of support rods for the buffer plate of the EMU, first clamp the support rod flange 2 on the horizontal positioning frame 6 and the vertical positioning frame 7, and then hang the horizontal positioning hook 4 of the base 3 on the support rod to form the mounting seat , push the base 3 to the right so that the longitudinal positioning hook 5 and the support rod form the mounting seat close. Observe whether there is a gap between the support rod flange 2 and the horizontal positioning frame 6 and the longitudinal positioning frame 7. If there is no gap, the support rod flange 2 is located on the designated installation surface, and the positioning is completed.

The lateral positioning frame 6 not only provides a positioning function, but also supports the support rod flange 2 to prevent the support rod flange 2 from sliding out of the mounting surface due to its own weight.

The fixing and positioning parts of the support rods comprise a plurality of bolts 11. In this embodiment, three groups are used, which are respectively located on the left side, the right side and the bottom of the base 3 to form three-point positioning. The bolt assembly 11 includes an L-shaped base fixed on the base 3, bolts, and lock nuts, and one surface of the L-shaped base is provided with a through hole through which the bolt passes.

By adjusting the elongation of the bolt, the support rod body 1 is clamped and fixed, and the positioning position of the support rod body 1 can also be adjusted. Bolts are used to form 11, which can satisfy the positioning and fixing of the support rod body 1 at the same time, and are convenient to use.

A method for assembling and installing the support rods of the buffer plate of the EMU, comprising the following steps:

Step 1, first clamp the support rod flange 2 on the horizontal positioning frame 6 and the vertical positioning frame 7, then hang the horizontal positioning hook 4 of the base 3 on the mounting seat of the support rod, and push the base 3 to the right to make the vertical positioning Hook 5 forms mounting seat with support bar and is close to. Observe whether there is a gap between the support rod flange 2 and the horizontal positioning frame 6 and the longitudinal positioning frame 7. If there is no gap, the support rod flange 2 is located on the designated installation surface, and the rapid positioning of the support rod flange 2 is realized.

After the positioning of the support rod flange 2 is completed, the center of the four flange concentric holes 8 are aligned with the holes on the support rod flange 2 and the fixing holes on the support rod assembly seat, and the bolts pass through the three parts. Fasten the holes on the top to achieve equidistant non-eccentricity.

Step 2: After the support rod body 1 is set at the welding position of the support rod flange 2, it is fixed by the support rod fixing and positioning components. Specifically, the verticality of the support rod body 1 is determined by testing the template, and then the positioning position of the support rod body 1 is positioned by adjusting the bolt elongation of the three groups of bolts 11, and the upper and lower gaps are adjusted to ensure that the welded joint The root space is even. After the support rod body 1 is fastened, the verticality of the support rod body 1 is detected with a test sample, and fine adjustments are made. If there is any deviation, it can be polished.

Step 3: After the position adjustment of the support rod body 1 and the support rod flange 2 is completed, the welding personnel perform positioning welding on them, and when the temperature of the weld seam cools below the specified temperature, the EMU buffer plate support rods are removed to form Positioning means.

In this embodiment, the positioning device is provided on both the buffer plate and the support rod assembly seat on the buffer plate mounting seat, that is, the positioning device is provided at both ends of the support rod body 1 for positioning.

As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solutions of the present invention.

Claims (10)

1. a kind of EMUs buffer board support stick constitutes positioner, it is characterised in that：Including base, it is arranged on the base Base fixed component, ring flange positioning element and support stick stationary positioned part, the base constitutes with support stick and installs Seat is fixedly connected by the base fixed component, support stick ring flange be folded in the base and support stick constitute mounting seat it Between, after the base and support stick composition mounting seat are fixed, support stick ring flange is by the ring flange positioning element in branch Positioned in support rod composition mounting seat, it is solid by the support stick after support stick barred body is arranged on support stick ring flange welding position Determine positioning element and fix or adjust fixed position.

2. a kind of EMUs buffer board support stick according to claim 1 constitutes positioner, it is characterised in that：The bottom Seat fixed component is the hanging hook assembly being arranged on the base, and the hanging hook assembly includes two located lateral hooks and one Longitudinal register is linked up with.

3. a kind of EMUs buffer board support stick according to claim 1 constitutes positioner, it is characterised in that：The method Blue disk positioning element includes being arranged on located lateral frame, the longitudinal register frame of outwardly convex on the base, the base with After support stick composition mounting seat is fixed, the edge of the support stick ring flange abuts against the located lateral frame, longitudinal register frame On.

4. a kind of EMUs buffer board support stick according to claim 3 constitutes positioner, it is characterised in that：Described The peep hole that whether there is gap with located lateral frame, longitudinal register frame for observing support stick ring flange is provided with base.

5. a kind of EMUs buffer board support stick according to claim 1 constitutes positioner, it is characterised in that：The branch Support rod stationary positioned part includes multiple bolt compositions, and the bolt composition includes the L-shaped pedestal, the spiral shell that are fixed on the base Bolt, locking nut, the through hole that bolt is passed through is provided with a face of the L-shaped pedestal.

6. a kind of EMUs buffer board support stick according to claim 1 constitutes positioner, it is characterised in that：The bottom Seat is in " recessed " shape.

7. a kind of EMUs buffer board support stick for applying the positioner as described in any one of claim 1 to 6 constitutes installation side Method, it is characterised in that comprise the following steps：

Step one, support stick ring flange is arranged between base and support stick composition mounting seat, and by base and support stick group Fixed into mounting seat, support stick ring flange is made up of in support stick ring flange positioning element positioned in mounting seat；

After step 2, support stick barred body are arranged on support stick ring flange welding position, by the support stick stationary positioned part It is fixed；

Step 3, support stick barred body and support stick ring flange are welded.

8. a kind of EMUs buffer board support stick according to claim 7 constitutes installation method, it is characterised in that：Described In step one, first support stick ring flange is stuck on located lateral frame, longitudinal register frame, then base is linked up with by located lateral It is fixed in support stick composition mounting seat with longitudinal register hook.

9. a kind of EMUs buffer board support stick according to claim 7 constitutes installation method, it is characterised in that：Described In step one, support stick ring flange is observed by peep hole and whether there is gap with located lateral frame, longitudinal register frame, such as existed Gap can be adjusted to support stick ring flange.

10. a kind of EMUs buffer board support stick according to claim 7 constitutes installation method, it is characterised in that：Institute State in step 2, detect the perpendicularity of support stick barred body.