Clamping device for welding pedal

By designing a clamping device for welding the car brake pedal, using components such as rotary tables, fixtures, limiting parts, positioning columns and compression clamps, the problem of difficulty in ensuring quality and accuracy of manual welding is solved, and the welding accuracy is improved and the pedal performance is enhanced.

CN222944854UActive Publication Date: 2025-06-06QUANZHOU BAOLONG MACHINERY CO LTD
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Patent Information

Application Number
CN202520777153.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-06-06
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

In the production process of automobile brake pedals, due to irregular pedal shapes, it is difficult to ensure quality and accuracy by manual welding, resulting in large deviations in welding sizes, affecting the overall performance and safety of the pedals.

Method used

A clamping device for welding a pedal is designed, including a rotating table, a first assembly and a second assembly. The first component fixes and restrains the pedal components through fixing parts, limiting parts, positioning posts and compression clamps, and the second component further fixes and restrains the components through the stage, support posts, support posts and compression clamps to ensure the correct position and fixation of the components.

Benefits of technology

Through the use of the clamping device, the welding size deviation is significantly reduced, the welding accuracy and consistency are improved, thereby improving the overall performance and safety of the automobile brake pedal.

✦ Generated by Eureka AI based on patent content.

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Abstract

A clamping device for welding pedals relates to the field of welding processing and comprises a rotary table, a first assembly and a second assembly, and the first assembly and the second assembly are arranged on the rotary table and driven by the rotary table to rotate; the first assembly comprises a bottom plate, and a fixing piece, a limiting piece, a positioning column and a first pressing clamp which are arranged on the bottom plate; the fixing piece is provided with a concave cavity; the bottom plate is at least fixedly connected with a limiting piece and a positioning column, the limiting piece is provided with a first clamping groove, and the positioning column is provided with a concave groove; the first pressing clamp is provided with a first pressing head arranged opposite to the first clamping groove. The second assembly comprises a supporting plate, and a carrying table, a supporting column, a supporting piece, an assembling table and a second pressing clamp which are arranged on the supporting plate; the carrying table is provided with a bearing groove. The supporting plate is at least fixedly connected with a supporting column and a supporting piece, the supporting column is provided with a second clamping groove, the supporting piece is provided with a third clamping groove, and the assembling table is provided with an assembling groove; the second pressing clamp is provided with a second pressing head arranged opposite to the bearing groove.
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Description

Technical Field

[0001] The utility model relates to the field of welding processing, in particular to a clamping device for welding pedals. Background Art

[0002] With the rapid progress of science and technology, the automobile manufacturing industry has also ushered in unprecedented changes. In the entire production and assembly process of automobiles, thousands of parts are involved, among which the production of automobile brake pedals is particularly critical because it is directly related to the braking performance and safety of automobiles. In the past, manual welding dominated the traditional automobile brake pedal production process. Workers need to weld and assemble multiple metal parts one by one. The automobile pedal consists of five metal parts: connecting block, bending rod, cross bar, vertical block and curved tread. It takes two welding processes to assemble the automobile pedal. The first process of the automobile pedal requires welding the connecting block, bending rod, cross bar and vertical block into a whole in sequence, and then welding the above whole again through the second process, and welding the curved tread at the end of the cross bar close to the vertical block, but the vertical block and the curved tread are set at intervals, that is, there is no connection between the vertical block and the curved tread.

[0003] Due to the irregular shape of the above-mentioned automobile pedals, this method that relies on manual welding has a significant disadvantage, that is, the quality and accuracy of manual welding are difficult to ensure complete consistency. It is very likely that the welding size deviation is too large due to human factors, which in turn affects the overall performance and safety of the brake pedal. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a clamping device for welding a pedal, which can fix and constrain the components of the pedal, reduce welding size deviation, and improve welding accuracy.

[0005] In order to solve the above technical problems, the utility model provides a clamping device for welding pedals, comprising a rotating table with rotational freedom and a first component and a second component arranged on the rotating table for fixing the pedals, wherein the rotating table drives the first component and the second component to rotate;

[0006] The first component comprises a base plate, and a fixing member, a limit member, a positioning column and a first clamping clamp arranged on the base plate; the fixing member has a concave cavity for embedding and fixing the connecting block; the base plate is fixedly connected with at least one of the limit member and the positioning column, and the limit member is provided with a first clamping groove for limiting the displacement of the bending rod at one end near the bending rod, and the positioning column is provided with a concave groove for positioning the cross rod at one end near the cross rod; the first clamping clamp has a first pressure head at one end near the first clamping groove, and the first pressure head is arranged opposite to the first clamping groove; the first component also comprises a fixing clamp located on the side of the positioning column and a third clamping clamp located on the side of the fixing member, and the fixing clamp has a pressure cover for nesting and fixing the vertical block at one end near the concave groove, and the third clamping clamp has a third pressure head for abutting the connecting block, and the third pressure head is arranged in the direction of the concave cavity;

[0007] The second component includes a support plate, and a carrier, a support column, a support member, an assembly table and a second clamping clamp arranged on the support plate; the carrier is provided with a supporting groove for supporting the connecting block; the support plate is fixedly connected to at least one of the support columns and the support member, the support column has a second clamping groove for fixing the bent rod, the support member has a third clamping groove for limiting the displacement of the cross bar, and the assembly table is provided with an assembly groove for engaging the arc tread; the second clamping clamp has a second pressure head at one end close to the supporting groove, and the second pressure head is arranged opposite to the supporting groove.

[0008] In a preferred embodiment: the first component also includes a pillar and a C-shaped head, the end of the pillar close to the base plate is fixedly connected to the base plate, the end of the pillar away from the base plate is rotatably connected to the C-shaped head, and the end of the C-shaped head away from the pillar has a fourth slot.

[0009] In a preferred embodiment: the second component also includes a first locking member for adjusting the tightness of the second slot and a second locking member for adjusting the tightness of the third slot; the first locking member is located on the side of the second slot, and the first locking member has a push rod, and the push rod can be extended into the second slot; the second locking member is located on the side of the third slot, and the second locking member has a screw, and the screw can be extended into the third slot.

[0010] In a preferred embodiment: the second component further comprises a fourth clamping clamp arranged at a side of the assembly groove, the fourth clamping clamp having a fourth pressure head for abutting against the arcuate tread surface so that the arcuate tread surface is closely abutted in the assembly groove.

[0011] In a preferred embodiment: the second component further comprises a fifth clamp disposed on a side of the support member, wherein the fifth clamp has a fifth pressing head for pressing the cross bar to fix the cross bar toward the assembly table.

[0012] In a preferred embodiment: it also includes a driving component; the driving component includes a shell, a turntable located outside the shell and a servo motor for driving the turntable to rotate, the servo motor is arranged in the shell and connected to the turntable through a rotating shaft, and the turntable is fixedly connected to the two ends of the rotating table.

[0013] In a preferred embodiment: the first component and the second component are located on the same rotating platform.

[0014] In a preferred embodiment, two rotating tables are provided, and the first component and the second component are respectively located on two different rotating tables.

[0015] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0016] 1. The utility model provides a clamping device for welding pedals. The first component and the second component are arranged on a rotating table to fix and limit the displacement of pedal parts, thereby greatly reducing the welding size deviation and improving the welding accuracy. The first component includes a fixing member, a first clamping clamp, and a plurality of limiters and positioning columns. The fixing member is engaged with the connecting block through a concave cavity. The first clamping groove of the limiter limits the lateral displacement of the pedal. The first pressure head of the first clamping clamp presses the bent rod against the first clamping groove to limit the longitudinal displacement of the pedal. The fixing member, the limiter, the positioning column and the first clamping clamp cooperate to fix the pedal parts on the first component; the second component includes a carrier, an assembly table, and a plurality of support columns and support members. The carrier abuts against one end of the connecting block through a supporting groove. The second clamping groove of the support column and the third clamping groove of the support member clamp the bent rod. The assembly table can be embedded with a curved tread for fixing. The carrier, the assembly table, the support column, the support member and the plurality of clamping clamps cooperate to fix the pedal parts on the second component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a clamping device for welding a pedal described in a preferred embodiment 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the driving assembly in the preferred embodiment 1 of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first component in the preferred embodiment 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of the first component after fixing the pedal in the preferred embodiment 1 of the utility model;

[0021] Figure 5This is a schematic diagram of the structure of the second component in the preferred embodiment 1 of the utility model;

[0022] Figure 6 This is a schematic diagram of the second component after fixing the pedal in the preferred embodiment 1 of the utility model;

[0023] Figure 7 This is a schematic structural diagram of a clamping device for welding a pedal as described in the preferred embodiment 2 of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the pedal welded through the first process in the preferred embodiment 1 of the utility model;

[0025] Fig. 9 This is a schematic diagram of the structure of the pedal welded by the second process in the preferred embodiment 1 of the utility model;

[0026] In the figure: rotating table 1, first component 2, bottom plate 21, fixing member 22, concave cavity 221, limiting member 23, first slot 231, positioning column 24, concave slot 241, first clamping clamp 25, first pressure head 251, pillar 26, C-shaped head 27, fourth slot 271, fixing clamp 28, pressure cover 281, third clamping clamp 29, third pressure head 291, second component 3, supporting plate 31, carrier 32, supporting slot 321, supporting column 33, second slot 3 31, support member 34, third clamping slot 341, assembly table 35, assembly slot 351, second clamping clamp 36, second pressing head 361, first locking member 37, push rod 371, second locking member 30, screw 301, fourth clamping clamp 38, fourth pressing head 381, fifth clamping clamp 39, fifth pressing head 391, drive assembly 4, housing 41, turntable 42, servo motor 43, connecting block 51, bending rod 52, cross bar 53, vertical block 54, arc tread 55. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances. Embodiment 1

[0030] refer to Figure 1-Figure 6 , Figure 8 and Fig. 9 The present embodiment provides a clamping device for welding a pedal, comprising a rotating table 1 with rotational freedom and a first component 2 and a second component 3 arranged on the rotating table 1 for fixing the pedal, wherein the rotating table 1 drives the first component 2 and the second component 3 to rotate. The first component 2 comprises a bottom plate 21, and a fixing member 22, a limiting member 23, a positioning column 24 and a first clamping clamp 25 arranged on the bottom plate 21; the fixing member 22 has a concave cavity 221 for engaging and fixing a connecting block 51; the bottom plate 21 is fixedly connected with at least one limiting member 23 and a positioning column 24, and the limiting member 23 is provided with a first clamping groove 231 for limiting the displacement of the bending rod 52 at one end thereof close to the bending rod 52, and the positioning column 24 is provided with a concave groove 241 for positioning the cross rod 53 at one end thereof close to the cross rod 53; the first clamping clamp 25 has a first pressing head 251 at one end thereof close to the first clamping groove 231, and the first pressing head 251 is arranged opposite to the first clamping groove 231. The first component 2 also includes a fixing clamp 28 located on the side of the positioning column 24 and a third clamping clamp 29 located on the side of the fixing member 22. The fixing clamp 28 has a pressure cover 281 at one end close to the concave groove 241 for nesting and fixing the vertical block 54. The third clamping clamp 29 has a third pressure head 291 for abutting the connecting block 51. The third pressure head 291 is arranged in the direction of the concave cavity 221.

[0031] The second component 3 includes a support plate 31, and a carrier 32, a support column 33, a support member 34, an assembly platform 35 and a second clamping clamp 36 arranged on the support plate 31; the carrier 32 is provided with a supporting groove 321 for supporting the connecting block 51; the support plate 31 is fixedly connected with at least one of the support columns 33 and the support member 34, the support column 33 has a second clamping groove 331 for fixing the bent rod 52, the support member 34 has a third clamping groove 341 for limiting the displacement of the cross bar 53, and the assembly platform 35 is provided with an assembly groove 351 for engaging the arc tread 55; the second clamping clamp 36 has a second pressure head 361 at one end close to the supporting groove 321, and the second pressure head 361 is arranged opposite to the supporting groove 321.

[0032] More specifically, in this embodiment, the clamping device for welding a pedal comprises a rotating table 1, a first component 2 and a second component 3. The first component 2 and the second component 3 are arranged on the same rotating table 1, and the first component 2 and the second component 3 are located on the same surface of the rotating table 1.

[0033] In this embodiment, welding manipulators with welding guns are arranged on both sides of the rotating table 1, so that the welding manipulators can directly weld the pedal parts fixed on the first component 2 and the second component 3. Specifically, the welding manipulator can be arranged on the left or right side of the rotating table 1 according to actual needs.

[0034] It should be noted that the clamping device for welding pedals also includes a driving assembly 4. The driving assembly 4 includes a shell 41, a turntable 42 located outside the shell 41, and a servo motor 43 for driving the turntable 42 to rotate. The servo motor 43 is arranged in the shell 41 and connected to the turntable 42 through a rotating shaft, and the turntable 42 is fixedly connected to the two ends of the rotating table 1. It can be understood that the two ends of the rotating table 1 are connected to the turntable 42, and the turntable 42 on one side is connected to the servo motor 43 located in the shell 41, and the servo motor 43 drives the turntable 42 on this side to rotate, while the turntable 42 on the other side is directly connected to the shell 41 through a rotating shaft, and the turntable 42 also rotates. It should be emphasized here that the servo motor 43 can be installed in the shell 41 on any side of the rotating table 1.

[0035] The servo motor 43 can drive the turntable 42 to rotate at multiple angles, so that the turntable 1 has rotational freedom. Further, the turntable 1 can drive the first component 2 and the second component 3 to rotate. Since the servo motor 43 is movably connected to the turntable 42 through a rotating shaft, which is a commonly used technical means in the art, no further description will be given in this article.

[0036] In detail, the first component 2 includes a base plate 21, and a fixing member 22, a limiting member 23, a positioning column 24 and a first clamping clamp 25 arranged on the base plate 21. The end of the fixing member 22 away from the base plate 21 is recessed toward the base plate 21 to form a concave cavity 221, and the concave cavity 221 can be used to engage and fix the connecting block 51 to limit the lateral displacement of the connecting block 51. Specifically, the depth of the concave cavity 221 is close to one-third of the length of the connecting block 51, which is optimal. In order to better fix and constrain the bent rod 52 and the cross rod 53, the base plate 21 is fixedly connected with at least one limiting member 23 and a positioning column 24. The number of the limiting members 23 and the positioning column 24 is determined according to the length and width of the bent rod 52 and the cross rod 53. In this embodiment, the number of the limiting members 23 is two, and the number of the positioning columns 24 is two. One end of the limiting member 23 close to the bottom plate 21 is fixedly connected to the bottom plate 21, and one end of the limiting member 23 away from the bottom plate 21 is provided with a first clamping groove 231. That is to say, the first clamping groove 231 is provided at the end of the limiting member 23 close to the bending rod 52 to limit the lateral displacement of the bending rod 52. One end of the positioning column 24 close to the bottom plate 21 is fixedly connected to the bottom plate 21, and one end of the positioning column 24 away from the bottom plate 21 is provided with a concave groove 241. That is, a concave groove 241 is provided at one end of the positioning column 24 close to the cross bar 53 to limit the displacement of the cross bar 53. In this embodiment, one of the concave grooves 241 is enclosed on three sides and open on one side, so that the end of the cross bar 53 can be effectively fixed. In order to limit the longitudinal displacement of the bent rod 52, first clamping clips 25 are provided on both sides of the limiting member 23, and the first clamping clip 25 has a first pressing head 251 at one end close to the first clamping slot 231, and the first pressing head 251 is arranged opposite to the first clamping slot 231. Such a design aims to enable the first pressing head 251 to press the bent rod 52 tightly into the first clamping slot 231, thereby limiting the movable travel of the bent rod 52. In this embodiment, the first clamping slot 231 corresponds to the first clamping clip 25, and the first clamping slot 231 and the first pressing head 251 can cooperate with each other to fix and limit the bent rod 52, so as to better constrain the lateral and longitudinal movable travel of the bent rod 52.

[0037] Further, the second component 3 includes a support plate 31, and a carrier 32, a support column 33, a support member 34, an assembly platform 35 and a second clamp 36 arranged on the support plate 31. The carrier 32 is provided with a bearing groove 321, and the bearing groove 321 is used to support the connecting block 51. The cross section of the bearing groove 321 is adapted to the end of the connecting block 51, so that the connecting block 51 can be well abutted and close to the bearing groove 321. A second clamp 36 is also provided on the side of the bearing groove 321, and the second clamp 36 has a second pressure head 361 at one end close to the bearing groove 321, and the second pressure head 361 is arranged opposite to the bearing groove 321. When the connecting block 51 abuts on the bearing groove 321, the second pressure head 361 presses the connecting block 51 tightly from the top of the connecting block 51, and the connecting block 51 is effectively constrained and fixed through the mutual cooperation of the bearing block and the second pressure head 361. The support plate 31 is fixed with at least one support column 33 and a support member 34. The support column 33 has a second clamping groove 331 for fixing the bent rod 52. The second clamping groove 331 clamps the bent rod 52 to fix and support it. The support member 34 has a third clamping groove 341 for limiting the deviation of the cross bar 53. Since the second clamping groove 331 has fixed part of the bent rod 52, the third clamping groove 341 can fix the end position of the bent rod 52 again, so as to better limit the bent rod 52. The side of the assembly platform 35 away from the support plate 31 is provided with an assembly groove 351, and the assembly groove 351 is used to fit and fix the arc tread 55.

[0038] In this embodiment, the first component 2 further includes a support 26 and a C-shaped head 27. The end of the support 26 close to the bottom plate 21 is fixed to the bottom plate 21, and the end of the support 26 away from the bottom plate 21 is rotatably connected to the C-shaped head 27, and the end of the C-shaped head 27 away from the support 26 has a fourth clamping groove 271. The fourth clamping groove 271 can clamp the bent rod 52, and cooperate with the first clamping groove 231 of the limiter 23 to further fix the bent rod 52.

[0039] It is worth noting that the first component 2 also includes a fixing clamp 28. The fixing clamp 28 is located on the side of the positioning column 24. The fixing clamp 28 has a pressure cover 281 at one end close to the concave groove 241. After the cross bar 53 is fixed to the concave groove 241, the vertical block 54 needs to be fixed. One end of the vertical block 54 abuts against the cross bar 53, and the other end faces upward. Then the pressure cover 281 can be nested and fix the vertical block 54. Specifically, by operating the fixing clamp 28, the pressure cover 281 can nest the end of the vertical block 54 from top to bottom, and press the vertical block 54 on the cross bar 53 to limit the displacement of the vertical block 54.

[0040] It should be noted that the first component 2 further includes a third pressing clamp 29 located on the side of the fixing member 22, and the third pressing clamp 29 has a third pressing head 291. The third pressing head 291 is arranged in the direction of the concave cavity 221. After the connecting member is fixed in the concave cavity 221, the third pressing head 291 can press and fix the connecting block 51 from above, further limiting the longitudinal displacement of the connecting block 51.

[0041] Furthermore, the second component 3 further includes a first locking member 37 and a second locking member 30. The first locking member 37 is used to adjust the tightness of the second slot 331. The second locking member 30 is used to adjust the tightness of the third slot 341. The first locking member 37 is located on the side of the second slot 331, and the first locking member 37 has a push rod 371, and the push rod 371 can be inserted into the second slot 331; the second locking member 30 is located on the side of the third slot 341, and the second locking member 30 has a screw 301, and the screw 301 can be inserted into the third slot 341.

[0042] In this embodiment, the second assembly 3 further includes a fourth clamp 38 disposed on the side of the assembly groove 351, and the fourth clamp 38 has a fourth pressure head 381 for abutting against the arcuate tread 55, so that the arcuate tread 55 is closely against the assembly groove 351. The second assembly 3 further includes a fifth clamp 39 disposed on the side of the support member 34, and the fifth clamp 39 has a fifth pressure head 391 for pressing the cross bar 53, so that the cross bar 53 is fixed toward the direction of the assembly platform 35.

[0043] In this embodiment, since the first clamping clamp 25, the second clamping clamp 36, the third clamping clamp 29, the fourth clamping clamp 38 and the fifth clamping clamp 39 are all clamps commonly used in the technical field and their structures have been fully disclosed in the prior art, they will not be described in detail in this article.

[0044] In this embodiment, the first clamping clamp 25, the second clamping clamp 36, the third clamping clamp 29, the fourth clamping clamp 38, the fifth clamping clamp 39 and the fixing clamp 28 are located at heights that enable their corresponding pressure heads or pressure covers to abut against the clamping pedal components.

[0045] In addition, it is further explained in this embodiment that the first component 2 is used to fix the pedal parts involved in the first welding process. After the first welding process is completed, the whole body welded in the first process is taken to the second component 3 for fixing, and then the whole body is welded to the arc tread 55, so that the welding operation of the entire automobile pedal is completed. Embodiment 2

[0046] refer to Figure 7 The difference between this embodiment and the first embodiment is that two rotating tables 1 are provided in this embodiment. The first component 2 and the second component 3 in this embodiment are respectively located on two different rotating tables 1. That is, the first component 2 and the second component 3 are not located on the same rotating table 1. The first component 2 and the second component 3 are arranged with a relative spacing. In this embodiment, the welding manipulator is provided between the two rotating tables 1, and the welding manipulator can weld the pedal parts fixed on the first component 2 and the second component 3 on the front and rear sides by rotating itself.

[0047] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A clamping device for welding a pedal, characterized in that: It comprises a rotating platform with rotational freedom and a first component and a second component arranged on the rotating platform for fixing a pedal, wherein the rotating platform drives the first component and the second component to rotate; The first component comprises a base plate, and a fixing member, a limit member, a positioning column and a first clamping clamp arranged on the base plate; the fixing member has a concave cavity for embedding and fixing the connecting block; the base plate is fixedly connected with at least one of the limit member and the positioning column, and the limit member is provided with a first clamping groove for limiting the displacement of the bending rod at one end near the bending rod, and the positioning column is provided with a concave groove for positioning the cross rod at one end near the cross rod; the first clamping clamp has a first pressure head at one end near the first clamping groove, and the first pressure head is arranged opposite to the first clamping groove; the first component also comprises a fixing clamp located on the side of the positioning column and a third clamping clamp located on the side of the fixing member, and the fixing clamp has a pressure cover for nesting and fixing the vertical block at one end near the concave groove, and the third clamping clamp has a third pressure head for abutting the connecting block, and the third pressure head is arranged in the direction of the concave cavity; The second component includes a support plate, and a carrier, a support column, a support member, an assembly table and a second clamping clamp arranged on the support plate; the carrier is provided with a supporting groove for supporting the connecting block; the support plate is fixedly connected to at least one of the support columns and the support member, the support column has a second clamping groove for fixing the bent rod, the support member has a third clamping groove for limiting the displacement of the cross bar, and the assembly table is provided with an assembly groove for engaging the arc tread; the second clamping clamp has a second pressure head at one end close to the supporting groove, and the second pressure head is arranged opposite to the supporting groove.

2. A clamping device for welding a pedal according to claim 1, characterized in that: The first component also includes a pillar and a C-shaped head, wherein one end of the pillar close to the base plate is fixedly connected to the base plate, and one end of the pillar away from the base plate is rotatably connected to the C-shaped head, and one end of the C-shaped head away from the pillar has a fourth slot.

3. A clamping device for welding a pedal according to claim 1, characterized in that: The second component also includes a first locking member for adjusting the tightness of the second slot and a second locking member for adjusting the tightness of the third slot; the first locking member is located on the side of the second slot, and the first locking member has a push rod, and the push rod can be extended into the second slot; the second locking member is located on the side of the third slot, and the second locking member has a screw, and the screw can be extended into the third slot.

4. A clamping device for welding a pedal according to claim 1, characterized in that: The second component further comprises a fourth pressing clamp arranged at a side of the assembly groove, wherein the fourth pressing clamp comprises a fourth pressing head for abutting against the arcuate tread surface so that the arcuate tread surface is closely abutted against the assembly groove.

5. The clamping device for welding a pedal according to claim 1, characterized in that: The second component further comprises a fifth clamping clamp arranged at a side of the support member, wherein the fifth clamping clamp has a fifth pressing head for pressing the cross bar so as to fix the cross bar toward the assembly platform.

6. A clamping device for welding pedals according to claim 1, characterized in that: It also includes a driving component; the driving component includes a shell, a turntable located outside the shell and a servo motor for driving the turntable to rotate, the servo motor is arranged in the shell and connected to the turntable through a rotating shaft, and the turntable is fixedly connected to the two ends of the rotating platform.

7. A clamping device for welding a pedal according to claim 6, characterized in that: The first component and the second component are located on the same rotating platform.

8. A clamping device for welding a pedal according to claim 6, characterized in that: The rotating platforms are provided with two, and the first component and the second component are respectively located on two different rotating platforms.