Positioning and clamping device for rear torsion beam

Abstract

The utility model relates to the technical field of rear torsion beams, and discloses a positioning and clamping device for a rear torsion beam, which comprises a main body, the main body comprises a table top and a support frame fixedly connected to the peripheral corners of the lower bottom end of the table top, the outer wall of the support frame is fixedly connected with a cross rod, and the top end of the table top is in bolted connection with a clamping assembly and an auxiliary positioning assembly. By arranging the clamping assembly, in the machining process of the rear torsion beam, clamping arms in the clamping assembly can longitudinally clamp the rear torsion beam placed on a placing plate through limiting grooves and limiting rods when an air cylinder works, and when the air cylinder works, a guide block is synchronously driven to slide in a guide sliding groove; and then a vertical plate fixedly connected with the upper top end of the guide rod moves, then the rear torsion beam is transversely clamped through a telescopic clamp arranged on the outer wall of the vertical plate, and the rear torsion beam can be rapidly positioned at the first time through an auxiliary positioning assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of rear torsion beams, and in particular to a positioning and clamping device for rear torsion beams. Background Art

[0002] Torsion beam suspension is a type of rear suspension for automobiles. It uses a torsion beam to balance the up and down bounce of the left and right wheels to reduce vehicle shaking and maintain vehicle stability. Due to the characteristics of the rear torsion beam's own shape, its curved shape and the spring ends, it is difficult for ordinary clamping devices to firmly clamp it in place for the next step.

[0003] After searching, the publication number CN216608133U discloses a positioning and clamping device for a rear torsion beam, which is roughly described as including a workbench, a support mechanism and a first clamping mechanism; the support mechanism is arranged on the workbench, and the support mechanism is used to support the two longitudinal arms of the rear torsion beam and the two spring trays; the first clamping mechanism is arranged on the workbench, and the first clamping mechanism includes a first clamping unit, and the first clamping unit includes a first clamping fixed part, a first clamping movable part and a first telescopic driving part, and the first clamping movable part is movably arranged on the first clamping fixed part, and the first clamping fixed part and the first clamping movable part are used to clamp the crossbeam of the rear torsion beam of the device, and the first clamping movable part is arranged on the first telescopic driving part. In the above technical solution, the clamping device of the rear torsion beam can be quickly completed by a single person, and labor costs and maintenance costs can be saved.

[0004] Although the above technical solution can improve efficiency through the clamping mechanism and the driving parts, it has many parts and a complex design. In the actual production process, it is easy for the machine to stop working due to the damage of a part. Moreover, it only clamps one surface of the rear torsion beam. As the use time increases, the clamping mechanism is prone to wear, and it is difficult to completely clamp and tighten the rear torsion beam, which can easily cause the beam to loosen during the processing. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning and clamping device for a rear torsion beam to solve the problem in the prior art that, due to the large number of parts and complex design, the machine may easily stop working due to damage of one part during the actual production process, and the clamping device only clamps one surface of the rear torsion beam through a clamping mechanism. As the use time increases, the clamping mechanism is prone to wear, making it difficult to completely clamp and tighten the rear torsion beam, and the beam body may easily become loose during the processing.

[0006] The utility model provides the following technical solution: a positioning and clamping device for a rear torsion beam, comprising a main body, wherein the main body comprises a table top and a support frame fixedly connected to the corners around the bottom end of the table top, the outer wall of the support frame is fixedly connected to a cross bar, and the top bolt of the table top is connected to a clamping assembly and an auxiliary positioning assembly.

[0007] By adopting the above solution, the support frame and the cross bar are arranged to provide sufficient stability for the desktop, thereby providing bearing capacity for the clamping assembly and auxiliary positioning assembly arranged on the desktop, and supporting the clamping work of the rear torsion beam.

[0008] As a preferred embodiment of the above technical solution, the clamping assembly includes a cylinder symmetrically arranged on the top of the table, a connecting plate is fixedly sleeved on the top of the cylinder, a rotating seat is symmetrically fixedly connected to the top of the connecting plate, a clamping arm is rotatably connected in the rotating seat, and a limiting groove is provided on the outer wall of the clamping arm.

[0009] By adopting the above scheme, the cylinder symmetrically arranged on the top of the table moves, and the extension or retraction of the cylinder can be used to drive the rotating seat above it to move by using the connecting plate to which it is connected, thereby causing the clamping arm to move. The movement of the clamping arm can be limited by the limit groove opened on the outer wall of the clamping arm.

[0010] As a preferred embodiment of the above technical solution, the upper top of the clamping arm is detachably connected to a pressure rod, the lower bottom end of the pressure rod is fixedly connected to a pressure plate, the lower bottom end of the pressure plate is fixedly connected to a rubber layer, the upper top of the connecting plate is located on the other side of the clamping arm and is symmetrically fixedly connected to a guide block, a guide shaft is slidably connected to the guide block, the outer wall of the guide shaft is fixedly connected to a guide rod, the upper top of the guide rod is fixedly connected to a vertical plate, and the outer wall of the vertical plate is spring-connected to multiple telescopic clamps.

[0011] By adopting the above scheme, the pressure rod detachably connected to the top end of the clamping arm can clamp the rear torsion beam longitudinally through the pressure rod and the pressure plate fixedly connected to the lower end of the pressure rod when the clamping arm clamps the rear torsion beam. Since a rubber layer is provided at the lower end of the pressure plate, the clamping will not cause damage to the surface of the rear torsion beam. The guide shaft slidably connected in the guide block can drive the guide rod on its outer wall to slide laterally as the cylinder is extended or retracted, and further the vertical plate on the top end of the guide rod and the telescopic clamp connected by the spring on the outer wall of the vertical plate are displaced laterally. By setting the end of the telescopic clamp to be spherical, the rear torsion beam body will not be scratched during the clamping process.

[0012] As a preferred embodiment of the above technical solution, the top of the table top is located on one side of the cylinder and is fixedly connected to a support plate, the inner wall of the support plate is located on one side of the limit slot and is fixedly connected to a limit rod, the limit rod passes through the limit slot, and the limit rod is slidably connected to the limit slot, the end of the limit rod is fixedly connected to a stop block, the inner wall of the support plate is located on one side of the guide rod and is fixedly connected to a limit slide, and the guide rod slides inside the limit slide.

[0013] By adopting the above scheme, a support plate is fixedly connected to the top of the table top, and a limit rod is fixedly connected to one side of the support plate, and the limit rod passes through the limit slot. Therefore, when the cylinder moves, the limit slot can be limited by the limit rod, so that the clamping arm only produces a longitudinal clamping effect on the rear torsion beam under the action of the limit rod. The clamping arm moves at a certain angle in the rotating seat through the movement of the cylinder. The block provided at the end of the limit rod can ensure that the limit rod will not be dislocated or out of the slot when limiting, and the guide rod can be slid transversely and limited therein through the limit slide.

[0014] As a preferred embodiment of the above technical solution, a placement plate is fixedly connected to the inner wall of the support plate, and the placement plate is located at the top end of the limiting slide.

[0015] By adopting the above solution, the placement plate is fixedly connected to the inner wall of the support plate, so that the clamped rear torsion beam can be supported so that it will not shake due to processing.

[0016] As a preferred embodiment of the above technical solution, the auxiliary positioning assembly includes a positioning frame symmetrically bolted to the top of the desktop, a retaining frame is fixedly connected to the top of the positioning frame, the positioning frame is arranged at a certain angle to the clamping assembly, and the top of the desktop is located on one side of the clamping assembly and is bolted to a positioning column.

[0017] By adopting the above scheme, an auxiliary positioning component is provided to position the clamped rear torsion beam, ensuring that the two ends and the spring end of the rear torsion beam are accurately positioned at the first time, thereby improving the processing efficiency of the rear torsion beam. The positioning frame and the baffle provided on the top of the positioning frame can ensure that the rear torsion beam will not fall off when not clamped. The spring end of the rear torsion beam can be inserted into the positioning column through the positioning column, thereby further limiting the rear torsion beam.

[0018] As a preferred embodiment of the above technical solution, the two cylinders are connected via a compressed air pipe.

[0019] By adopting the above solution, the two cylinders are connected through a compressed air pipe, which can reduce production while also improving processing efficiency.

[0020] Compared with the prior art, the beneficial effect of the present invention is that by setting a clamping assembly, during the processing of the rear torsion beam, when the cylinder is working, the clamping arm in the clamping assembly can use the limit groove and the limit rod to enable the clamping arm to longitudinally clamp the rear torsion beam placed on the placement plate. When the cylinder is working, it simultaneously drives the guide block to slide in the guide groove, thereby causing the vertical plate fixedly connected to the top end of the guide rod to move, and then the rear torsion beam is laterally clamped by the telescopic clamp set on its outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a positioning and clamping device for a rear torsion beam;

[0022] Figure 2 This is a schematic diagram of the structure of a clamping assembly of a positioning and clamping device for a rear torsion beam;

[0023] Figure 3 This is a schematic diagram of the structure of a clamping arm of a positioning and clamping device for a rear torsion beam;

[0024] Figure 4 The figure is a schematic diagram of a telescopic clamp structure for a positioning and clamping device of a rear torsion beam.

[0025] In the figure: 1. Main body; 101. Tabletop; 102. Support frame; 103. Cross bar; 2. Clamping assembly; 201. Cylinder; 202. Connecting plate; 203. Rotating seat; 204. Clamping arm; 205. Limiting groove; 206. Pressure rod; 207. Pressure plate; 208. Guide block; 209. Guide shaft; 210. Guide rod; 211. Vertical plate; 212. Telescopic clamp; 213. Support plate; 214. Limiting rod; 215. Block; 216. Limiting slide; 217. Placement plate; 3. Auxiliary positioning assembly; 301. Positioning frame; 302. Blocking frame; 303. Positioning column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1As shown, the utility model provides a technical solution: a positioning and clamping device for a rear torsion beam, comprising a main body 1, the main body 1 comprising a desktop 101 and a support frame 102 fixedly connected to the corners around the bottom end of the desktop 101, a crossbar 103 fixedly connected to the outer wall of the support frame 102, and a clamping assembly 2 and an auxiliary positioning assembly 3 bolted to the top of the desktop 101. Through the arrangement of the support frame 102 and the crossbar 103, sufficient stability can be provided for the desktop 101, thereby providing bearing capacity for the clamping assembly 2 and the auxiliary positioning assembly 3 arranged on the desktop 101, which can support the clamping work of the rear torsion beam. The two cylinders 201 are connected by a compressed air pipe, which can reduce production while also improving processing efficiency. The auxiliary positioning assembly 3 includes symmetrical The positioning frame 301 is bolted to the top of the desktop 101, and the top of the positioning frame 301 is fixedly connected to a blocking frame 302. The positioning frame 301 is set at a certain angle to the clamping component 2. The top of the desktop 101 is located on one side of the clamping component 2 and is bolted to a positioning column 303. By setting the auxiliary positioning component 3, the clamped rear torsion beam can be positioned to ensure that the two ends and the spring end of the rear torsion beam are accurately positioned at the first time, thereby improving the processing efficiency of the rear torsion beam. The blocking frame 302 set at the top of the positioning frame 301 and the positioning frame 301 can ensure that the rear torsion beam will not fall off when it is not clamped. The spring end of the rear torsion beam can be inserted into the positioning column 303 through the positioning column 303, thereby further limiting the rear torsion beam.

[0028] like Figure 1 and Figure 2 As shown, the clamping assembly 2 includes a cylinder 201 symmetrically arranged on the top of the desktop 101, a connecting plate 202 is fixedly sleeved on the top of the cylinder 201, a rotating seat 203 is symmetrically fixedly connected to the top of the connecting plate 202, a clamping arm 204 is rotatably connected in the rotating seat 203, and a limiting groove 205 is provided on the outer wall of the clamping arm 204. By moving the cylinder 201 symmetrically arranged on the top of the desktop 101, the extension or retraction of the cylinder 201 can be used to drive the rotating seat 203 above it to move, thereby causing the clamping arm 204 to move, and the limiting groove 205 provided on the outer wall of the clamping arm 204 can limit the movement of the clamping arm 204.

[0029] like Figure 2 、 Figure 3 and Figure 4As shown, the top end of the clamping arm 204 is detachably connected to a pressure rod 206, the lower bottom end of the pressure rod 206 is fixedly connected to a pressure plate 207, the lower bottom end of the pressure plate 207 is fixedly connected to a rubber layer, the top end of the connecting plate 202 is located on the other side of the clamping arm 204 and is symmetrically fixedly connected to a guide block 208, a guide shaft 209 is slidably connected in the guide block 208, the outer wall of the guide shaft 209 is fixedly connected to a guide rod 210, the top end of the guide rod 210 is fixedly connected to a vertical plate 211, and the outer wall of the vertical plate 211 is spring-connected to a plurality of telescopic clamps 212. The pressure rod 206 detachably connected to the top end of the clamping arm 204 can be used to clamp the rear torsion beam through the pressure rod 206 and the lower bottom end of the pressure rod 206 when the clamping arm 204 clamps the rear torsion beam. The fixedly connected pressure plate 207 clamps the rear torsion beam longitudinally. Since a rubber layer is provided at the lower end of the pressure plate 207, the clamping will not damage the surface of the rear torsion beam. The guide shaft 209 slidably connected in the guide block 208 can drive the guide rod 210 on its outer wall to slide laterally as the cylinder 201 extends or retracts, further causing the vertical plate 211 at the top end of the guide rod 210 and the telescopic clamp 212 connected by the spring on the outer wall of the vertical plate 211 to move laterally. The end of the telescopic clamp 212 is set to a spherical shape, so that the rear torsion beam body will not be scratched during the clamping process. The top of the desktop 101 is fixedly connected to a support plate 213 on one side of the cylinder 201. The support plate 213 The inner wall of 13 is located on one side of the limit groove 205 and is fixedly connected to the limit rod 214. The limit rod 214 passes through the limit groove 205 and is slidably connected to the limit groove 205. The end of the limit rod 214 is fixedly connected to the stopper 215. The inner wall of the support plate 213 is located on one side of the guide rod 210 and is fixedly connected to the limit slide 216. The guide rod 210 slides inside the limit slide 216. The support plate 213 fixedly connected to the top of the desktop 101 is fixedly connected to the limit rod 214 on one side of the support plate 213, and the limit rod 214 passes through the limit groove 205. Therefore, when the cylinder 201 moves, the limit groove 205 can be limited by the limit rod 214, thereby making the clamping arm 204 Under the action of the limit rod 214, only the longitudinal clamping effect is produced on the rear torsion beam. The movement of the cylinder 201 makes the clamping arm 204 move at a certain angle in the rotating seat 203. The block 215 set at the end of the limit rod 214 can ensure that the limit rod 214 will not be dislocated or out of the groove when limiting. The limit slide 216 allows the guide rod 210 to slide horizontally therein. The inner wall of the support plate 213 is fixedly connected to a placement plate 217, and the placement plate 217 is located at the top of the limit slide 216. The placement plate 217 fixedly connected to the inner wall of the support plate 213 can support the clamped rear torsion beam so that it will not shake due to processing.

[0030] When the cylinder 201 is retracted, the guide rod 210 is limited by the guide block 208 fixed to the other side of the connecting plate 202, and the curved groove provided in the guide block 208 makes the guide block 208 to be retracted. The guide rod 210 is passively moved laterally in the curved groove along with the guide shaft 209, further driving the vertical plate 211 at the top thereof to move laterally, and multiple telescopic clamps 212 connected by springs on the outer wall of the vertical plate 211 clamp the rear torsion beam laterally. When the rear torsion beam is processed, the cylinder 201 is started to extend, so that the clamping arm 204 and the guide rod 210 are opened on both sides through the limit groove 205 and the guide block 208, releasing the rear torsion beam. This device is simple in design and flexible, and will not fail to work due to damage to individual parts. It improves production efficiency and is also convenient for later repair and maintenance. When the rear torsion beam is placed, since it has a roughly uniform shape, its two ends can be placed on the positioning frame 301 of the auxiliary positioning assembly 3, and the stop frame 302 at the top of the positioning frame 301 can ensure that it will not slide, and its spring end is placed on the positioning column 303 for socket connection to further ensure its stability.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A positioning and clamping device for a rear torsion beam, comprising a main body (1), characterized in that: The main body (1) comprises a tabletop (101) and a support frame (102) fixedly connected to the corners around the bottom end of the tabletop (101); a crossbar (103) is fixedly connected to the outer wall of the support frame (102); and a clamping assembly (2) and an auxiliary positioning assembly (3) are bolted to the top end of the tabletop (101).

2. A positioning and clamping device for a rear torsion beam according to claim 1, characterized in that: The clamping assembly (2) comprises a cylinder (201) symmetrically arranged on the top of the table (101); a connecting plate (202) is fixedly sleeved on the top of the cylinder (201); a rotating seat (203) is symmetrically fixedly connected to the top of the connecting plate (202); a clamping arm (204) is rotatably connected inside the rotating seat (203); and a limiting groove (205) is provided on the outer wall of the clamping arm (204).

3. The positioning and clamping device for a rear torsion beam according to claim 2, characterized in that: The upper top of the clamping arm (204) is detachably connected to a pressure rod (206), the lower bottom of the pressure rod (206) is fixedly connected to a pressure plate (207), the lower bottom of the pressure plate (207) is fixedly connected to a rubber layer, the upper top of the connecting plate (202) is symmetrically fixedly connected to a guide block (208) on the other side of the clamping arm (204), the guide block (208) is slidably connected to a guide shaft (209), the outer wall of the guide shaft (209) is fixedly connected to a guide rod (210), the upper top of the guide rod (210) is fixedly connected to a vertical plate (211), and the outer wall of the vertical plate (211) is spring-connected to a plurality of telescopic clamps (212).

4. The positioning and clamping device for a rear torsion beam according to claim 1, characterized in that: The top of the tabletop (101) is located on one side of the cylinder (201) and is fixedly connected to a support plate (213); the inner wall of the support plate (213) is located on one side of the limiting groove (205) and is fixedly connected to a limiting rod (214); the limiting rod (214) passes through the limiting groove (205) and is slidably connected to the limiting groove (205); a stopper (215) is fixedly connected to the end of the limiting rod (214); the inner wall of the support plate (213) is located on one side of the guide rod (210) and is fixedly connected to a limiting slide (216); and the guide rod (210) slides inside the limiting slide (216).

5. The positioning and clamping device for a rear torsion beam according to claim 4, characterized in that: A placement plate (217) is fixedly connected to the inner wall of the support plate (213), and the placement plate (217) is located at the top end of the limiting slide seat (216).

6. The positioning and clamping device for a rear torsion beam according to claim 1, characterized in that: The auxiliary positioning assembly (3) comprises a positioning frame (301) symmetrically bolted to the top of the desktop (101), a retaining frame (302) fixedly connected to the top of the positioning frame (301), the positioning frame (301) and the clamping assembly (2) are arranged at a certain angle, and a positioning column (303) is bolted to the top of the desktop (101) on one side of the clamping assembly (2).

7. The positioning and clamping device for a rear torsion beam according to claim 2, characterized in that: The two cylinders (201) are connected via a compressed air pipe.

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