Automobile torsion bar tooth processing tooling

Abstract

This utility model discloses a machining fixture for automotive torsion bar teeth, including a base, symmetrically arranged support seats on the base, and a first hydraulic cylinder on the base. One end of the telescopic rod of the first hydraulic cylinder is connected to a lifting plate. The bottom of the lifting plate is symmetrically arranged with clamping blocks that cooperate with the support seats to hold the torsion bar. Spring guide rod buffer assemblies are fixedly installed on the inward-facing sides of both support seats, and movable support assemblies are symmetrically arranged on the outward-facing sides of both support seats. The movable support assemblies support the two ends of the torsion bar respectively. This utility model allows for flexible adjustment of the support positions according to torsion bars of different lengths, achieving adaptive support for both ends of the torsion bar and improving the versatility of the fixture. The spring guide rod buffer assembly and the movable support assembly buffer the vibration of the middle and ends of the torsion bar; the double buffer design effectively reduces vibration interference and significantly improves the machining accuracy of the teeth.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a tooling for machining automotive torsion bar teeth. Background Technology

[0002] In the automotive parts manufacturing industry, the machining accuracy of torsion bar teeth is crucial to their performance. Traditional torsion bar tooth machining fixtures typically employ rigid support structures when clamping the torsion bar, lacking effective buffering and vibration damping designs. During machining, equipment vibration can easily cause displacement or vibration of the torsion bar, thus affecting the machining accuracy of the teeth. Furthermore, traditional fixtures are poorly adaptable to torsion bars of different lengths, requiring frequent replacement or adjustment of support components, which is cumbersome and inefficient. Simultaneously, existing fixtures lack buffer mechanisms, failing to effectively absorb the impact energy generated during machining, further contributing to unstable machining accuracy.

[0003] Chinese patent CN219520718U discloses a machining fixture for automotive torsion bar teeth, including a base, a guide rail connected to the base, a base slidably connected to the guide rail, a groove on the base, a first mounting seat and a second mounting seat slidably connected to the groove, a connecting seat rotatably connected to the first mounting seat, the connecting seat having a limiting hole, a placement block slidably connected to the second mounting seat, the placement block having a slot, a first fixing mechanism for fixing the first mounting seat to the base connected to the first mounting seat, and a second fixing mechanism for fixing the second mounting seat to the base connected to the second mounting seat; one end of the torsion bar is fixed through the limiting hole, and the other end is fixed through the slot on the height-adjustable placement block; however, the entire torsion bar is fixed by a rigid structure, and when the machining equipment processes the torsion bar teeth, the vibration or impact generated by the equipment will still be transmitted to the torsion bar, causing the torsion bar to vibrate during the processing, thereby affecting the machining accuracy of the torsion bar teeth. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art of torsion bar gear machining tooling, and to provide a machining tooling for automotive torsion bar gears.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a machining fixture for automotive torsion bar teeth, comprising a base, symmetrically arranged support seats on the base, a first hydraulic cylinder on the base, a lifting plate connected to one end of the telescopic rod of the first hydraulic cylinder, clamping blocks symmetrically arranged at the bottom of the lifting plate to cooperate with the support seats to clamp the torsion bar, spring guide rod buffer assemblies fixedly installed on the inward side of each of the two support seats, the spring guide rod buffer assemblies absorbing the impact energy of the middle rod of the torsion bar through the compression and extension of the spring, and movable support assemblies symmetrically arranged on the outward side of each of the two support seats, the movable support assemblies supporting the two ends of the torsion bar respectively.

[0006] Furthermore, the support base is longitudinally aligned with the clamping block, and both the support base and the clamping block have clamping grooves at their ends for clamping the torsion bar.

[0007] Furthermore, the spring guide rod buffer assembly includes a fixed frame that is fixedly installed on the side of the support base, a guide rod that is slidably inserted into the fixed frame, a V-shaped groove for supporting a torsion bar being opened at the top of the guide rod, a first spring being sleeved on the guide rod, the first spring being disposed in the fixed frame, and an adjusting nut being threadedly installed at the bottom of the guide rod.

[0008] Furthermore, the movable support assembly includes a guide rail disposed on one side of the support base, a slider slidably disposed on the guide rail, a second hydraulic cylinder disposed on one side of the guide rail, the telescopic rod of the second hydraulic cylinder being fixedly connected to the slider, an mounting shell being mounted on the top surface of the slider, a guide post being slidably disposed inside the mounting shell, a second spring being fitted on the lower part of the guide post, the second spring being disposed inside the mounting shell, and a fork-shaped member for supporting the torsion bar being disposed on the top of the guide post.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. Symmetrically arranged support seats and clamping blocks on the base are clamped together by a lifting plate driven by a first hydraulic cylinder. The clamping groove design ensures accurate positioning of the torsion bar, forming a stable clamping structure and preventing the torsion bar from shifting during processing. The movable support assembly is driven by a second hydraulic cylinder to slide the slider on the guide rail, which can flexibly adjust the support position according to the torsion bar of different lengths, achieving adaptive support for both ends of the torsion bar and improving the versatility of the tooling.

[0011] 2. In the spring guide rod buffer assembly, the V-shaped groove at the top of the guide rod supports the middle section of the torsion bar. The first spring absorbs the impact energy generated during processing through compression and extension, reducing the impact of vibration on the torsion bar and ensuring the stability of the middle section. The fork-shaped component of the movable support assembly forms a buffer structure through the guide post and the second spring, buffering the vibration at the end of the torsion bar. The double buffer design effectively reduces vibration interference and significantly improves the machining accuracy of the teeth. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a cross-sectional view of the spring guide rod buffer assembly in this utility model;

[0014] Figure 3 This is a schematic diagram of the movable support component in this utility model;

[0015] Figure 4 This is a cross-sectional view of the mounting shell, guide post, and second spring in the movable support assembly of this utility model.

[0016] In the figure: 1-base, 2-support base, 3-first hydraulic cylinder, 4-lifting plate, 5-clamping block, 6-spring guide rod buffer assembly, 7-moving support assembly, 61-fixed frame, 62-guide rod, 63-first spring, 71-guide rail, 72-slider, 73-second hydraulic cylinder, 74-mounting shell, 75-guide post, 76-second spring, 77-fork-shaped part. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Combination Figures 1 to 4The tooling for machining automotive torsion bar teeth shown includes a base 1, with support seats 2 symmetrically arranged on the base 1, and a first hydraulic cylinder 3 arranged on the base 1. One end of the telescopic rod of the first hydraulic cylinder 3 is connected to a lifting plate 4. The bottom of the lifting plate 4 is symmetrically provided with clamping blocks 5 that cooperate with the support seats 2 to clamp the torsion bar. Spring guide rod buffer assemblies 6 are fixedly installed on the inward side of both support seats 2. The spring guide rod buffer assemblies 6 absorb the impact energy of the middle rod of the torsion bar through the compression and extension of the spring. Moving support assemblies 7 are symmetrically arranged on the outward side of both support seats 2, and the moving support assemblies 7 support the two ends of the torsion bar respectively.

[0020] like Figure 1 As shown, the support base 2 is longitudinally aligned with the clamping block 5, and the ends of the support base 2 and the clamping block 5 are provided with clamping grooves for clamping the torsion bar. The two support bases 2 cooperate with the two clamping blocks 5 respectively. The lifting plate 4 is driven to move up and down by the first hydraulic cylinder 3, thereby driving the clamping block 5 to cooperate with the support base 2 to initially clamp the torsion bar.

[0021] like Figure 2 As shown, the spring guide rod buffer assembly 6 includes a fixed frame 61 fixedly installed on the side of the support base 2. A guide rod 62 is slidably inserted into the fixed frame 61. The top of the guide rod 62 has a V-shaped groove for supporting the torsion bar. A first spring 63 is sleeved on the guide rod 62 and is located inside the fixed frame 61. An adjusting nut is threadedly installed at the bottom of the guide rod 62. Although the torsion bar is clamped by the cooperation of the support base 2 and the clamping block 5, the vibration generated by the processing equipment during the machining of the teeth at both ends of the torsion bar will still affect the machining accuracy of the torsion bar teeth. Therefore, the spring guide rod buffer assembly 6 is set up. The guide rod 62 ensures the linear guidance of the movement, so that it can move stably in the vertical direction when subjected to force. The spring compression and extension absorb the impact energy of the middle part of the torsion bar. The adjusting nut, through the threaded cooperation with the bottom of the guide rod 62, can adjust the compression of the spring, thereby adjusting the preload and buffering effect of the buffer mechanism.

[0022] like Figure 1 and Figure 3 As shown, the movable support assembly 7 includes a guide rail 71 disposed on one side of the support base 2, a slider 72 slidably disposed on the guide rail 71, a second hydraulic cylinder 73 disposed on one side of the guide rail 71, the telescopic rod of the second hydraulic cylinder 73 being fixedly connected to the slider 72, an mounting shell 74 being mounted on the top surface of the slider 72, a guide post 75 being slidably disposed inside the mounting shell 74, a second spring 76 being fitted on the lower part of the guide post 75, the second spring 76 being disposed inside the mounting shell 74, and a fork-shaped member 77 for supporting the torsion bar being disposed on the top of the guide post 75;

[0023] When machining automotive torsion bar teeth of different lengths, the middle part of the torsion bar can be clamped by the support seat 2 and the clamping block 5. Then, the second hydraulic cylinder 73 is activated to drive the slider 72 to slide on the guide rail 71, thereby enabling the support member on the top surface of the slider 72 to support both ends of the torsion bar. The support member is also equipped with a buffer component similar to the spring guide rod buffer assembly 6.

[0024] like Figure 1 and Figure 4 As shown, the fork-shaped part 77 at the top of the guide post 75 supports the end of the torsion bar. When machining the torsion bar teeth, the second spring 76 sleeved on the guide post 75 buffers the vibration of the torsion bar end during machining, thereby improving the machining accuracy of the torsion bar teeth.

[0025] Working principle: The torsion bar to be processed is placed on two support seats, aligning the middle section of the torsion bar with the clamping grooves of the support seats and clamping blocks. The first hydraulic cylinder is activated, its telescopic rod moving the lifting plate downwards, causing the clamping blocks to engage with the clamping grooves of the support seats, initially clamping and fixing the middle section of the torsion bar. Based on the length of the torsion bar, the second hydraulic cylinder is activated, driving the slider to slide on the guide rail, adjusting the position of the moving support assembly so that the fork-shaped component aligns with both ends of the torsion bar. The fork-shaped component contacts the second spring inside the mounting housing through the guide post, forming elastic support and automatically adapting to the height of the torsion bar ends, thus completing the support for both ends of the torsion bar. During the gear machining process, if... Vibration or impact is generated. The vibration of the middle section of the torsion bar is transmitted to the first spring through the guide rod of the spring guide rod buffer assembly. The first spring is compressed to absorb energy. The guide rod slides vertically within the fixed frame to ensure the stability of the middle section. The vibration of the end of the torsion bar is transmitted to the guide post through the fork-shaped part. The guide post compresses the second spring. The second spring absorbs the impact energy at the end and reduces end sway. The double buffer mechanism works together to ensure that the torsion bar remains stable during processing. After processing, the first hydraulic cylinder drives the lifting plate to rise, the clamping block releases the torsion bar, and at the same time the second hydraulic cylinder drives the moving support assembly to reset, and the processed torsion bar is taken out, completing one processing cycle.

[0026] Figure 1 The car torsion bar placed on the two support seats 2 is only a schematic diagram. The actual shape of the car torsion bar is based on the actual shape of the car torsion bar for support and clamping.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A processing tool for tooth of automobile torsion bar, comprising a base (1), a supporting seat (2) is symmetrically arranged on the base (1), characterized in that: A first hydraulic cylinder (3) is provided on the base (1). A lifting plate (4) is connected to one end of the telescopic rod of the first hydraulic cylinder (3). A clamping block (5) is symmetrically provided at the bottom of the lifting plate (4) to cooperate with the support seat (2) to clamp the torsion bar. A spring guide rod buffer assembly (6) is fixedly installed on the inner side of both support seats (2). The spring guide rod buffer assembly (6) absorbs the impact energy of the middle rod of the torsion bar through the compression and extension of the spring. A movable support assembly (7) is symmetrically provided on the outer side of both support seats (2). The movable support assembly (7) supports the two ends of the torsion bar respectively.

2. The machining fixture for automotive torsion bar gears according to claim 1, characterized in that: The support base (2) is longitudinally aligned with the clamping block (5), and both the support base (2) and the clamping block (5) have clamping grooves at their ends for clamping the torsion bar.

3. The machining fixture for automotive torsion bar gears according to claim 2, characterized in that: The spring guide rod buffer assembly (6) includes a fixed frame (61) fixedly installed on the side of the support base (2), a guide rod (62) is slidably inserted in the fixed frame (61), the top of the guide rod (62) is provided with a V-shaped groove for supporting the torsion bar, a first spring (63) is sleeved on the guide rod (62), the first spring (63) is disposed in the fixed frame (61), and an adjusting nut is threadedly installed at the bottom of the guide rod (62).

4. The machining fixture for automotive torsion bar gears according to claim 3, characterized in that: The movable support assembly (7) includes a guide rail (71) disposed on one side of the support base (2), a slider (72) slidably disposed on the guide rail (71), a second hydraulic cylinder (73) disposed on one side of the guide rail (71), the telescopic rod of the second hydraulic cylinder (73) being fixedly connected to the slider (72), an mounting shell (74) being mounted on the top surface of the slider (72), a guide post (75) being slidably disposed inside the mounting shell (74), a second spring (76) being fitted on the lower part of the guide post (75), the second spring (76) being disposed inside the mounting shell (74), and a fork-shaped member (77) for supporting the torsion bar being disposed on the top of the guide post (75).

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