Full-automatic machining pneumatic clamp for automobile damping support

Abstract

This utility model relates to a fully automatic pneumatic clamping fixture for machining automotive shock absorber brackets. It includes a base, a bridge plate, a T-shaped plate, cams, a tailstock, a first drive unit, a reducer, a first clamping member, and a second clamping member. Cams are connected to both ends of the bridge plate via the T-shaped plate; one set of cams is installed at the output end of the reducer, and the other set is installed at the support end of the tailstock. The first drive unit is a servo motor, with its output end connected to the reducer. The first clamping member is fixed at the center of the top of the bridge plate. Two sets of second clamping members are symmetrically distributed on both sides of the first clamping member and fixed to the top of the bridge plate. This invention solves the technical problem in existing solutions for automotive shock absorber brackets that have consistently failed to achieve multi-angle machining in a single clamping operation and uniform pressure application across the entire area.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to a fully automatic pneumatic clamp for machining automotive shock absorber brackets. Background Technology

[0002] As a core load-bearing component of the chassis system, the machining precision of automotive shock absorber brackets directly affects vehicle safety and comfort. Traditional machining processes face three major technical bottlenecks:

[0003] First, clamping efficiency is low. The bracket structure is complex and requires multi-faceted machining. Each time a face is changed, the workpiece must be disassembled and repositioned for clamping. Workers need to manually tighten multiple bolts to fix the pressure plate, making each clamping session extremely time-consuming and significantly dragging down overall machining efficiency. Frequent disassembly and assembly severely limits production capacity, making it impossible to meet the mass production needs of the automotive industry.

[0004] Secondly, the machining quality is unstable. Secondary clamping inevitably introduces positioning errors, resulting in poor dimensional consistency. More seriously, the traditional single-point clamping method is prone to uneven force on the workpiece, and vibration during machining can cause local warping of the support, which in turn leads to abnormal tool wear or deviations in form and position.

[0005] Finally, the angle adjustment function is missing. The bracket's angled holes and curved surfaces require machining at specific angles, but the existing tooling lacks rotational positioning capabilities. Workers are forced to move the workpieces to the indexing table for operation, which not only increases handling time but also amplifies accuracy errors due to repeated positioning.

[0006] The industry has attempted improvements: for example, adding a hydraulic locking mechanism shortens the clamping time, but the system becomes more complex and maintenance costs skyrocket; using quick-change fixture base plates reduces changeover time, but cannot solve the problem of uneven force distribution. In essence, the existing tooling fixtures for automotive shock absorber brackets have consistently failed to overcome the technical challenges of multi-angle machining in a single clamping operation and uniform pressure application across the entire area. Utility Model Content

[0007] This application provides a fully automated pneumatic clamping fixture for machining automotive shock absorber brackets, which solves the technical problem that existing tooling fixtures for automotive shock absorber brackets have consistently failed to achieve multi-angle machining in a single clamping and uniform pressure application across the entire area.

[0008] The technical solution adopted in the embodiments of this application is as follows:

[0009] A fully automated pneumatic clamping fixture for machining automotive shock absorber brackets includes a base, a bridge plate, a T-shaped plate, cams, a tailstock, a first drive unit, a reducer, a first clamping member, and a second clamping member. The bridge plate has cams connected to both ends via the T-shaped plate, with one set of cams mounted on the output end of the reducer and the other set mounted on the support end of the tailstock. The first drive unit is a servo motor, with its output end connected to the reducer. The first clamping member is fixed to the center of the top of the bridge plate. Two sets of the second clamping members are symmetrically distributed on both sides of the first clamping member and fixed to the top of the bridge plate.

[0010] A further technical solution is as follows: the first clamping component includes a first pressure plate, a first pull rod, and a second driving device; the second driving device is a cylinder, the cylinder body of which is fixed to the top of the bridge plate; the first pull rod is connected to the piston rod end of the second driving device; the first pressure plate is provided in two sets, symmetrically hinged to the top of the first pull rod, and the middle of both sets of the first pressure plates is hinged to the cylinder body of the second driving device.

[0011] A further technical solution is as follows: the second clamping component includes a second pressure plate, a second pull rod, and a third driving device; the third driving device is a cylinder, the cylinder body of which is fixed to the top of the bridge plate; the second pull rod is connected to the piston rod end of the third driving device; one end of the second pressure plate is hinged to the top of the second pull rod, and the other end is hinged to the cylinder body of the third driving device.

[0012] A further technical solution is that the reducer and the cam on the tailstock rotate synchronously to drive the bridge plate to achieve multi-angle positioning and processing.

[0013] A further technical solution is as follows: the first clamping component and the two sets of the second clamping components are linked by a pneumatic button to achieve synchronous clamping and release of the workpiece.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0015] 1. By employing a base, bridge plate, T-plate, cam, tailstock, first drive device, reducer, first clamping component, and second clamping component, and through the coordinated operation of the base, bridge plate, and cam rotation mechanism, along with the linkage clamping design of the first and second clamping components, three major technical challenges are creatively solved: First, it overturns the traditional clamping mode. Workers only need to place the workpiece and trigger a button to complete three-way synchronous locking, completely eliminating the manual bolt tightening method. Combined with the multi-angle rotation capability of the bridge plate, it eliminates the secondary clamping step, significantly improving production efficiency. Second, it constructs a full-area pressure equalization system. Utilizing the centrally symmetrical first pressure plate and the double-sided distributed second pressure plates to form a composite clamping network, it ensures uniform force on the workpiece surface, fundamentally eliminating deformation and dimensional deviations caused by uneven force, and significantly improving the product qualification rate. Finally, it achieves flexible production. The bridge plate can quickly adapt to different bracket models, and the precise coordination of the cam and reducer meets the processing needs of complex structures. It integrates traditionally dispersed functions into a single workstation, reducing equipment footprint. The pure pneumatic system combines high reliability and low maintenance costs, providing fundamental support for intelligent manufacturing of automotive parts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a fully automated pneumatic clamp for machining an automotive shock absorber bracket, as described in this utility model embodiment.

[0017] Figure 2 This is a partial structural diagram illustrating the first clamping member in an embodiment of this utility model.

[0018] Figure 3 This is a partial structural diagram illustrating the second clamping member in an embodiment of this utility model.

[0019] In the diagram: 1. Base; 2. Bridge plate; 3. T-shaped plate; 4. Cam; 5. Tailstock; 6. First drive device; 7. Reducer; 8. First clamping component; 81. First pressure plate; 82. First pull rod; 83. Second drive device; 9. Second clamping component; 91. Second pressure plate; 92. Second pull rod; 93. Third drive device. Detailed Implementation

[0020] This application provides a fully automated pneumatic clamping fixture for machining automotive shock absorber brackets, which solves the technical problem that existing tooling fixtures for automotive shock absorber brackets have consistently failed to achieve multi-angle machining in a single clamping and uniform pressure application across the entire area.

[0021] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] A fully automated pneumatic clamping fixture for machining automotive shock absorber brackets, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, a bridge plate 2, a T-shaped plate 3, a cam 4, a tailstock 5, a first drive device 6, a reducer 7, a first clamping member 8, and a second clamping member 9. The two ends of the bridge plate 2 are respectively connected to the cams 4 through the T-shaped plate 3. One set of cams 4 is installed at the output end of the reducer 7, and the other set of cams 4 is installed at the support end of the tailstock 5. The first drive device 6 is a servo motor, and its output end is connected to the reducer 7. The first clamping member 8 is fixed at the center of the top of the bridge plate 2. There are two sets of second clamping members 9, which are symmetrically distributed on both sides of the first clamping member 8 and fixed to the top of the bridge plate 2.

[0024] The first clamping component 8 includes a first pressure plate 81, a first pull rod 82, and a second driving device 83; the second driving device 83 is a cylinder, the cylinder body of which is fixed to the top of the bridge plate 2; the first pull rod 82 is connected to the piston rod end of the second driving device 83; the first pressure plate 81 is provided in two sets, symmetrically hinged to the top of the first pull rod 82, and the middle of both sets of first pressure plates 81 is hinged to the cylinder body of the second driving device 83.

[0025] The second clamping component 9 includes a second pressure plate 91, a second pull rod 92, and a third driving device 93; the third driving device 93 is a cylinder, and its cylinder body is fixed to the top of the bridge plate 2; the second pull rod 92 is connected to the piston rod end of the third driving device 93; one end of the second pressure plate 91 is hinged to the top of the second pull rod 92, and the other end is hinged to the cylinder body of the third driving device 93.

[0026] The reducer 7 and the cam 4 on the tailstock 5 rotate synchronously, driving the bridge plate 2 to achieve multi-angle positioning and machining.

[0027] The first clamping component 8 and the two sets of second clamping components 9 are linked by a pneumatic button to achieve synchronous clamping and release of the workpiece.

[0028] The operation process is as follows:

[0029] Workpiece placement: Place the shock absorber bracket directly on top of bridge plate 2;

[0030] Synchronous clamping: Press the pneumatic button, the second drive device 83 of the first clamping component 8 drives the first pull rod 82 to move upward, causing the two sets of first pressure plates 81 to rotate and press down around the cylinder hinge point; at the same time, the third drive device 93 of the two sets of second clamping components 9 pushes the second pull rod 92, so that the second pressure plate 91 presses down synchronously around the cylinder hinge point, and the three sets of pressure plates instantly complete the full-area fixation of the workpiece;

[0031] Angle machining: The torque output by the first drive device 6 (servo motor) through the reducer 7 drives the cams 4 at both ends to rotate synchronously, and the bridge plate 2 is rotated to the set angle through the T-shaped plate 3, so as to realize the multi-face machining of the inclined hole and the curved surface;

[0032] Reset and unloading: After processing is completed, the pneumatic button controls all cylinders to reset and release the pressure plate, and the workpiece is taken out.

[0033] Beneficial effects

[0034] By adopting the configuration of base 1, bridge plate 2, T-plate 3, cam 4, tailstock 5, first drive device 6, reducer 7, first clamping component 8, and second clamping component 9, and through the coordinated rotation mechanism of base 1, bridge plate 2, and cam 4, along with the linkage clamping design of first clamping component 8 and second clamping component 9, three major technical challenges are creatively solved: First, it overturns the traditional clamping mode, allowing workers to complete three-way synchronous locking simply by placing the workpiece and triggering the button, completely eliminating the manual bolt tightening method. Combined with the multi-angle rotation capability of bridge plate 2, it eliminates the secondary clamping step, significantly improving production efficiency. Secondly, a full-area pressure equalization system is constructed, using a centrally symmetrical first pressure plate 81 and a double-sided distributed second pressure plate 91 to form a composite pressing network, so that the workpiece surface is uniformly stressed, eliminating deformation and dimensional deviations caused by uneven stress at the source, and significantly improving the product qualification rate. Finally, flexible production is achieved. The bridge plate 2 can be quickly adapted to different types of brackets, and the precise cooperation between the cam 4 and the reducer 7 meets the processing requirements of complex structures. The traditionally dispersed functions are integrated into a single workstation to reduce the equipment footprint. The pure pneumatic system has both high reliability and low maintenance costs, providing basic support for the intelligent manufacturing of automotive parts.

[0035] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fully automated pneumatic clamping fixture for machining automotive shock absorber brackets, characterized in that, The device includes a base (1), a bridge plate (2), a T-shaped plate (3), a cam (4), a tailstock (5), a first drive device (6), a reducer (7), a first clamping member (8), and a second clamping member (9). The bridge plate (2) is connected to the cam (4) at both ends through the T-shaped plate (3). One set of the cam (4) is installed at the output end of the reducer (7), and the other set of the cam (4) is installed at the support end of the tailstock (5). The first drive device (6) is a servo motor, and its output end is connected to the reducer (7). The first clamping member (8) is fixed at the top center of the bridge plate (2). The second clamping member (9) has two sets, which are symmetrically distributed on both sides of the first clamping member (8) and fixed to the top of the bridge plate (2).

2. The fully automated pneumatic clamping fixture for machining an automotive shock absorber bracket as described in claim 1, characterized in that, The first clamping component (8) includes a first pressure plate (81), a first pull rod (82), and a second driving device (83); the second driving device (83) is a cylinder, the cylinder body of which is fixed to the top of the bridge plate (2); the first pull rod (82) is connected to the piston rod end of the second driving device (83); the first pressure plate (81) is provided in two sets, symmetrically hinged to the top of the first pull rod (82), and the middle parts of the two sets of first pressure plates (81) are all hinged to the cylinder body of the second driving device (83).

3. The fully automated pneumatic clamping fixture for machining an automotive shock absorber bracket as described in claim 1, characterized in that, The second clamping member (9) includes a second pressure plate (91), a second pull rod (92), and a third driving device (93); the third driving device (93) is a cylinder, the cylinder body of which is fixed to the top of the bridge plate (2); the second pull rod (92) is connected to the piston rod end of the third driving device (93); one end of the second pressure plate (91) is hinged to the top end of the second pull rod (92), and the other end is hinged to the cylinder body of the third driving device (93).

4. The fully automated pneumatic clamping fixture for machining an automotive shock absorber bracket as described in claim 1, characterized in that, The reducer (7) and the cam (4) on the tailstock (5) rotate synchronously, driving the bridge plate (2) to achieve multi-angle positioning and processing.

5. The fully automated pneumatic clamping fixture for machining an automotive shock absorber bracket as described in claim 1, characterized in that, The first clamping component (8) and the two sets of second clamping components (9) are linked by a pneumatic button to achieve synchronous clamping and release of the workpiece.

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