Clamping tool for circular tube cross beam

Abstract

The utility model relates to a circular tube cross beam clamping tool, which comprises a bottom plate, a first clamp and at least one second clamp, the first clamp is arranged on the bottom plate, the first clamp comprises a first pressing plate and a pressing mechanism which are oppositely arranged, and the pressing mechanism comprises a supporting plate, a second pressing plate and a first linear pusher. The second pressing plate is arranged on the side, opposite to the first pressing plate, of the supporting plate, and the first linear pusher is installed on the supporting plate and used for driving the second pressing plate to move towards or away from the first pressing plate; the at least one second clamp is arranged on the bottom plate and located between the first pressing plate and the second pressing plate. Through the arrangement of the double clamps, not only can a part be pressed tightly to achieve positioning, but also the middle position of the part can be pressed tightly to prevent the part from vibrating during machining. Therefore, the part machining error can be reduced, and the machining precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts machining, in particular to a clamping tool for a round tube crossbeam. Background Art

[0002] The round tube crossbeam is an important component for transmitting driving force and braking force in the chassis frame assembly. In addition to bearing the vertical load, the round tube crossbeam also needs to bear large bending and torsion forces when the frame longitudinal beam deflects due to uneven road surface during vehicle driving. For heavy-duty vehicles, the structure and performance of the rear crossbeam have a significant impact on the vehicle's handling stability, ride comfort and other indicators.

[0003] At present, in the early stage of machining, the round tube beam is positioned at one end and thrust is applied from the other end to clamp the parts. However, due to the long length of the parts, after the round tube beam is clamped, it is affected by the previous processing error, and the holes at both ends are not concentric, resulting in large errors. As a result, after processing, the position deviation of the remaining holes relative to the two end holes does not meet the requirements of the drawings. The main reason is analyzed: affected by the parallelism of the two end faces and the verticality of the hole and the face, the error is gradually magnified along the length direction of the part. As a result, the size after processing exceeds the tolerance. Therefore, how to solve this problem is the key to ensuring processing accuracy. Utility Model Content

[0004] Based on the above description, the utility model provides a clamping tool for a round tube beam, aiming to solve the problem of large positioning errors of clamped parts by the existing clamping tool.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A clamping tool for a round tube beam, comprising:

[0007] Base plate;

[0008] A first clamp, the first clamp is arranged on the bottom plate, the first clamp comprises a first pressing plate and a pressing mechanism arranged opposite to each other, the pressing mechanism comprises a supporting plate, a second pressing plate and a first linear actuator, the second pressing plate is arranged on a side of the supporting plate opposite to the first pressing plate, the first linear actuator is mounted on the supporting plate, and the first linear actuator is used to drive the second pressing plate to move toward or away from the first pressing plate;

[0009] At least one second clamp, at least one second clamp is arranged on the bottom plate, and at least one second clamp is located between the first pressing plate and the second pressing plate.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a plurality of support rods distributed in an array are provided on the bottom plate, and the plurality of support rods are located between the first pressing plate and the second pressing plate.

[0012] Furthermore, the first pressure plate is provided with a plurality of first sockets distributed in an array, and a side of the first pressure plate relative to the second pressure plate is provided with a plurality of positioning plates distributed in an array, and the positioning plates correspond one-to-one to the first sockets, and each of the positioning plates is provided with a plurality of second sockets arranged at intervals along its length direction, and when one of the second sockets is aligned with the first socket, a first positioning pin is inserted into the first socket and one of the second sockets.

[0013] Furthermore, at least one reinforcing rib is provided on a side of the first pressing plate away from the second pressing plate.

[0014] Furthermore, the clamping mechanism includes two guide plates, the two guide plates are symmetrically arranged along the second pressing plate, and each of the guide plates is connected to the support plate.

[0015] Furthermore, the second clamp includes a V-shaped support, a second linear actuator, a pressure arm, a support block and a connecting rod, the second linear actuator and the support block are arranged relative to the V-shaped support, the pressure arm is rotatably connected to the output end of the second linear actuator, the support block is arranged on the second linear actuator, and the pressure arm is connected to the support block through at least two connecting rods.

[0016] Furthermore, the V-shaped support is connected to the base plate through at least one pair of guide rods, and the V-shaped support moves relative to each of the guide rods, each of the guide rods is provided with an elastic part, one end of each of the elastic parts abuts against the base plate, and the other end of the elastic part abuts against the V-shaped support.

[0017] Furthermore, the second clamp includes a limit seat, and the limit seat is provided below each of the V-shaped supports.

[0018] Furthermore, a positioning seat is provided on the bottom plate, the positioning seat is located on a side of the second pressing plate away from the supporting plate, and a second positioning pin is provided on the positioning seat.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] (1) The present invention not only can press the parts tightly to achieve positioning through the arrangement of double clamps, but also can press the middle position of the parts tightly to prevent the parts from vibrating during processing. This can reduce the error of part processing and ensure the processing accuracy.

[0021] (2) In the present application, when the part moves toward the first pressure plate, the first positioning pin can be gradually inserted into the positioning pin hole at the left end of the part, so that the part can reach the accurate position.

[0022] (3) The present application uses a second linear actuator to push the pressing arm to rotate and contact the part, so that the V-shaped support and the pressing arm work together to press the part. In this way, the parts can be quickly disassembled and assembled.

[0023] (4) The present application can provide a stronger thrust to the V-shaped support and enhance the force of the V-shaped support and the pressure arm on the parts through the cooperation of the V-shaped support, the guide rod and the elastic part, and can also adapt to beams of different pipe diameters, thereby improving the versatility of the clamping tooling.

[0024] (5) In the present application, when the part moves toward the first pressure plate, the second positioning pin can be inserted into the positioning pin hole at the right end of the part. This can not only detect whether the left and right end hole positions of the previous part are correct, which plays a role in preventing errors. It can also locate the right end of the part and reduce the positioning errors at both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a general assembly diagram of a clamping tool for a round tube beam provided in an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the first pressing plate in the embodiment of the utility model;

[0027] Figure 3 This is a structural schematic diagram of the clamping mechanism in the embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the second clamp in the embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the positioning seat in the embodiment of the utility model;

[0030] Figure 6 The present invention is a clamping effect diagram of a clamping tool for a round tube beam provided in an embodiment of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 10. Bottom plate; 11. Support rod;

[0033] 20. first fixture; 21. first pressing plate; 211. positioning plate; 2111. first plug hole; 212. first positioning pin; 213. reinforcing rib; 22. clamping mechanism; 221. support plate; 222. second pressing plate; 223. first linear actuator; 224. guide plate;

[0034] 30. Second clamp; 31. V-shaped support; 311. Guide rod; 312. Elastic part; 32. Second linear actuator; 33. Pressing arm; 34. Support block; 35. Connecting rod; 36. Limiting seat;

[0035] 40. Positioning seat; 41. Second positioning pin. DETAILED DESCRIPTION

[0036] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0039] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0040] See attached Figures 1 to 6As shown, the utility model provides a technical solution: a clamping tool for a round tube beam, comprising a base plate 10, a first clamp 20 and at least one second clamp 30, the first clamp 20 is arranged on the base plate 10, the first clamp 20 includes a first pressure plate 21 and a clamping mechanism 22 arranged relatively to each other, the clamping mechanism 22 includes a support plate 221, a second pressure plate 222 and a first linear actuator 223, the second pressure plate 222 is arranged on the side of the support plate 221 opposite to the first pressure plate 21, the first linear actuator 223 is installed on the support plate 221, and the first linear actuator 223 is used to drive the second pressure plate 222 to move toward or away from the first pressure plate 21; at least one second clamp 30 is arranged on the base plate 10, and at least one second clamp 30 is located between the first pressure plate 21 and the second pressure plate 222.

[0041] For example, the second clamp 30 may be a tubular clamp or the like.

[0042] According to this embodiment, the part is hoisted between the first pressing plate 21 and the second pressing plate 222, and then the first linear actuator 223 drives the second pressing plate 222 to contact the right end of the part, and pushes the part to move toward the first pressing plate 21, so that the left end of the part contacts the first pressing plate 21, and the first pressing plate 21 and the second pressing plate 222 work together to achieve the part compression. At the same time, the middle position of the part is compressed by the second clamp 30 to prevent the part from vibrating during processing.

[0043] See attached Figure 1 and 6 As shown, in one embodiment, a plurality of support rods 11 distributed in an array are disposed on the bottom plate 10 , and the plurality of support rods 11 are located between the first pressing plate 21 and the second pressing plate 222 .

[0044] According to this embodiment, during the period when the first pressing plate 21 and the second pressing plate 222 are pressed together, the support rod 11 supports the parts to prevent the parts from rotating.

[0045] See attached Figure 1~2 As shown in Figure 6, in one embodiment, the first pressure plate 21 is provided with a plurality of first sockets 2111 distributed in an array, and the first pressure plate 21 is provided with a plurality of positioning plates 211 distributed in an array on one side of the second pressure plate 222, and the positioning plates 211 correspond one-to-one to the first sockets 2111, and each positioning plate 211 is provided with a plurality of second sockets arranged at intervals along its length direction, and when one of the second sockets is aligned with the first socket 2111, the first positioning pin 212 is inserted into the first socket 2111 and one of the second sockets.

[0046] According to this embodiment, during the pressing of the first pressing plate 21 and the second pressing plate 222, the locating pin hole at the left end of the part is aligned with the first locating pin 212, and at the same time, when the second pressing plate 222 is gradually pushed toward the first pressing plate 21, the first locating pin 212 can be gradually inserted into the locating pin hole at the left end of the part. In this way, the positioning of the part can be achieved, the part can be ensured to be in the correct position, and the processing accuracy of the part can be ensured. In addition, the arrangement of multiple second jacks can be adaptively adjusted according to the specifications of the part, which can better assist in the positioning of the part and improve the versatility of the clamping tooling.

[0047] See attached Figure 1~2 As shown in FIG6 , in one embodiment, at least one reinforcing rib 213 is provided on a side of the first pressing plate 21 away from the second pressing plate 222 .

[0048] According to this embodiment, the reinforcing ribs 213 can support the first pressing plate 21 , strengthen the pressing ability of the first pressing plate 21 , and prevent the first pressing plate 21 from tilting.

[0049] See attached Figure 1 , 3 As shown in FIG. 6 , in one embodiment, the pressing mechanism 22 includes two guide plates 224 , which are symmetrically arranged along the second pressing plate 222 , and each guide plate 224 is connected to the supporting plate 221 .

[0050] Exemplarily, the guide plate 224 and the support plate 221 may be integrally formed, or may be connected by bolts or the like.

[0051] According to this embodiment, when the part is hoisted between the first pressing plate 21 and the second pressing plate 222 , the right end of the part is first placed on the two guide plates 224 , and the part is roughly positioned by the two guide plates 224 .

[0052] See attached Figure 1 , 4 As shown in and 6, in one embodiment, the second clamp 30 includes a V-shaped support 31, a second linear actuator 32, a pressure arm 33, a support block 34 and a connecting rod 35. The second linear actuator 32 and the support block 34 are arranged relative to the V-shaped support 31. The pressure arm 33 is rotatably connected to the output end of the second linear actuator 32. The support block 34 is provided on the second linear actuator 32. The pressure arm 33 is connected to the support block 34 through at least two connecting rods 35.

[0053] According to this embodiment, after the first pressing plate 21 and the second pressing plate 222 are pressed, the second linear actuator 32 pushes the pressing arm 33 to rotate and contact the part. The V-shaped support 31 and the pressing arm 33 work together to press the part, thereby preventing the part from vibrating during processing.

[0054] See attached Figure 1 , 4 As shown in Figures 6, in one embodiment, the V-shaped support 31 is connected to the base plate 10 through at least one pair of guide rods 311, and the V-shaped support 31 moves relative to each guide rod 311, and each guide rod 311 is provided with an elastic portion 312, one end of each elastic portion 312 abuts against the base plate 10, and the other end of the elastic portion 312 abuts against the V-shaped support 31.

[0055] Exemplarily, the elastic portion 312 may be a spring or a rubber elastic pad.

[0056] According to this embodiment, the V-shaped support 31 moves along the length direction of the guide rod 311. Through the elastic force of the elastic part 312, not only can a strong thrust be provided to the V-shaped support 31, thereby enhancing the force of the V-shaped support 31 and the pressure arm 33 to press the parts, but also it can adapt to beams of different pipe diameters, thereby improving the versatility of the clamping tooling.

[0057] See attached Figure 1 , 4 As shown in FIG. 6 , in one embodiment, the second fixture 30 includes a limiting seat 36 , and a limiting seat 36 is provided below each V-shaped support 31 .

[0058] According to this embodiment, the limiting seat 36 limits the V-shaped support 31 to limit the specifications of the parts and prevent the second clamp 30 from failing to effectively prevent vibration.

[0059] See attached Figure 1 and 6 As shown, in one embodiment, a positioning seat 40 is provided on the bottom plate 10 , and the positioning seat 40 is located on a side of the second pressing plate 222 away from the supporting plate 221 , and a second positioning pin 41 is provided on the positioning seat 40 .

[0060] According to this embodiment, when the second pressing plate 222 pushes the part toward the first pressing plate 21, the second positioning pin 41 can be inserted into the positioning pin hole at the right end of the part. Therefore, it is possible to detect whether the left and right end holes of the previous part are correct, which plays a role in error prevention. It is also possible to locate the right end of the part and reduce the positioning error at both ends. In addition, the positioning seat 40 is located on the left side of the right end, which can facilitate the disassembly and assembly of the parts.

[0061] Specifically, the working principle of the clamping tooling of the round tube beam is as follows: the part is hoisted between the first pressing plate 21 and the second pressing plate 222, the locating pin hole at the left end of the part is aligned with the first locating pin 212, and then the first linear actuator 223 drives the second pressing plate 222 to contact the right end of the part. At the same time, the second pressing plate 222 gradually pushes the part toward the first pressing plate 21, so that the first locating pin 212 can be gradually inserted into the locating pin hole at the left end of the part, and the second locating pin 41 is inserted into the locating pin hole at the right end of the part to achieve positioning of the part, and the part is pressed by the joint action of the first pressing plate 21 and the second pressing plate 222 to achieve the pressing of the part. Subsequently, the second linear actuator 32 pushes the pressing arm 33 to rotate and contact the part. The thrust applied to the V-shaped support 31 by the elastic part 312 enables the joint action of the V-shaped support 31 and the pressing arm 33 to press the middle position of the part.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping tool for a round tube beam, characterized in that: include: Bottom plate (10); a first clamp (20), the first clamp (20) being arranged on the base plate (10), the first clamp (20) comprising a first pressing plate (21) and a pressing mechanism (22) which are arranged opposite to each other, the pressing mechanism (22) comprising a supporting plate (221), a second pressing plate (222) and a first linear actuator (223), the second pressing plate (222) being arranged on a side of the supporting plate (221) opposite to the first pressing plate (21), the first linear actuator (223) being mounted on the supporting plate (221), and the first linear actuator (223) being used for driving the second pressing plate (222) to move towards or away from the first pressing plate (21); At least one second clamp (30), at least one second clamp (30) is arranged on the bottom plate (10), and at least one second clamp (30) is located between the first pressing plate (21) and the second pressing plate (222).

2. A clamping tool for a round tube beam according to claim 1, characterized in that: The bottom plate (10) is provided with a plurality of support rods (11) distributed in an array, and the plurality of support rods (11) are located between the first pressing plate (21) and the second pressing plate (222).

3. The clamping tool for a round tube beam according to claim 1, characterized in that: The first pressing plate (21) is provided with a plurality of first plug holes (2111) distributed in an array, and a side of the first pressing plate (21) opposite to the second pressing plate (222) is provided with a plurality of positioning plates (211) distributed in an array, and the positioning plates (211) correspond to the first plug holes (2111) one by one, and each positioning plate (211) is provided with a plurality of second plug holes arranged at intervals along its length direction, and when one of the second plug holes is aligned with the first plug hole (2111), a first positioning pin (212) is inserted into the first plug hole (2111) and one of the second plug holes.

4. The clamping tool for a round tube beam according to claim 1, characterized in that: At least one reinforcing rib (213) is provided on a side of the first pressing plate (21) away from the second pressing plate (222).

5. The clamping tool for a round tube beam according to claim 1, characterized in that: The pressing mechanism (22) comprises two guide plates (224), the two guide plates (224) are symmetrically arranged along the second pressing plate (222), and each guide plate (224) is connected to the support plate (221).

6. A clamping tool for a round tube beam according to any one of claims 1 to 5, characterized in that: The second clamp (30) comprises a V-shaped support (31), a second linear actuator (32), a pressure arm (33), a support block (34) and a connecting rod (35); the second linear actuator (32) and the support block (34) are arranged relative to the V-shaped support (31); the pressure arm (33) is rotatably connected to the output end of the second linear actuator (32); the support block (34) is arranged on the second linear actuator (32); and the pressure arm (33) is connected to the support block (34) via at least two connecting rods (35).

7. The clamping tool for a round tube beam according to claim 6, characterized in that: The V-shaped support (31) is connected to the bottom plate (10) via at least one pair of guide rods (311), and the V-shaped support (31) moves relative to each guide rod (311), each guide rod (311) is sleeved with an elastic portion (312), one end of each elastic portion (312) abuts against the bottom plate (10), and the other end of the elastic portion (312) abuts against the V-shaped support (31).

8. The clamping tool for a round tube beam according to claim 7, characterized in that: The second clamp (30) comprises a limiting seat (36), and the limiting seat (36) is provided below each of the V-shaped supports (31).

9. The clamping tool for a round tube beam according to claim 3, characterized in that: A positioning seat (40) is provided on the bottom plate (10), the positioning seat (40) is located on a side of the second pressing plate (222) away from the supporting plate (221), and a second positioning pin (41) is provided on the positioning seat (40).

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