Workpiece clamping mechanism of welding production line

Abstract

The utility model discloses a workpiece clamping mechanism of a welding production line. The workpiece clamping mechanism comprises a welding workbench, a welding rack, a fixing plate and a supporting plate, wherein the welding rack is provided with supporting legs D at the bottom close to the corner position, the fixing plate is arranged between the opposite supporting legs D, and the two ends of the supporting plate are connected with the fixing plate. The lifting mechanism comprises a lifting electric push rod with the bottom end connected with the supporting plate, a fixing disc connected with the top end of the lifting electric push rod and a supporting rotary disc rotationally connected with the fixing disc, and a fixing round edge is arranged on the outer surface of the supporting rotary disc; the limiting mechanism is used for clamping the workpiece C; the design that the position of a large-area workpiece is convenient to adjust is adopted, a lifting electric push rod operates, a fixing disc, a supporting rotary disc and a workpiece containing plate vertically move upwards, the effect of lifting the height of the workpiece can be achieved, welding machining can be conducted on the suspended end position of the workpiece, and the workpiece is moved to the different workpiece containing plate positions on the welding rack, so that the welding efficiency is improved. And the rearrangement of the workpieces produced by the assembly line is not influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of workpiece clamping devices for welding, and specifically relates to a workpiece clamping mechanism for a welding production line. Background Technology

[0002] Metal products, such as door frames, are welded in the factory. The workpieces are usually placed on the ground on a support to keep them flat so that the welders can use their welding tools to weld them.

[0003] When welding large, flat workpieces such as door frames, workers need to constantly move around the workpieces to perform welding at different locations. Additionally, they need to manually lift and move the workpieces, a time-consuming and laborious process, to allow for repositioning during assembly line production. Moving large workpieces during welding is cumbersome. Furthermore, there is a lack of design features to facilitate the adjustment of the position of large, flat workpieces during welding. Therefore, this application proposes a workpiece clamping mechanism for a welding production line. Utility Model Content

[0004] The purpose of this invention is to provide a workpiece clamping mechanism for a welding production line, so as to solve the design problem mentioned in the background art of not being able to easily adjust the position of large-area workpieces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a workpiece clamping mechanism for a welding production line, comprising...

[0006] The welding workbench includes a welding frame with legs D mounted on the bottom near the corner, a fixed plate mounted between opposite legs D, and support plates connected to the fixed plate at both ends.

[0007] The lifting mechanism includes a lifting electric push rod connected to the bottom end of a support plate, a fixed plate connected to the top end of the lifting electric push rod, and a support turntable rotatably connected to the fixed plate. The outer surface of the support turntable is provided with a fixed round edge.

[0008] The limiting mechanism for clamping workpiece C includes a workpiece placement plate whose bottom surface is connected to a support turntable, a support rod that supports workpiece C, and a clamping assembly. The clamping assembly includes a stabilizing rod installed inside the support rod, a contraction spring sleeved on the outer side of one end of the stabilizing rod, a compression block that slides along the axial direction of the stabilizing rod, a rotating ring rotatably sleeved on the outer side of the compression block, and a clamping plate whose one end is connected to the outer surface of the rotating ring.

[0009] Preferably, the bottom surface of the fixed plate is provided with a pressing assembly, which includes a fixed block connected to the fixed plate at its top end, a pressing rod rotatably connected to the fixed block at one end, a limiting plate mounted on the pressing rod at one end, and a compression spring connected to the fixed block and the pressing rod at both ends respectively.

[0010] Preferably, the fixing block has an "L" shaped structure, and the fixing block is provided with a limiting rod that is inserted into the bottom end of the compression spring.

[0011] Preferably, the pressing rod is provided with a limiting seat, which includes an inclined plate connected to the surface of the pressing rod and a connecting post inserted into the top end of the compression spring. The fixed round edge is perpendicular to the pressing rod, and the inclined top end of the fixed round edge is curved.

[0012] Preferably, the outer surface of the fixed circular edge is provided with uniformly distributed slots, and the curved top end of the limiting plate cooperates with the slots.

[0013] Preferably, a rectangular groove is formed at the center of the support rod surface, and a groove communicating with the groove is formed on the side surface of the support rod, and the clamping plate cooperates with the groove.

[0014] Preferably, the distance between the top surface of the workpiece placement plate and the top surface of the welding stand is a spacing H, the lifting electric push rod extends up and down by the same distance as the spacing H, and the top surface of the support rod is curved.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a design that facilitates the adjustment of the position of large-area workpieces. The operation of the lifting electric actuator causes the fixed plate, support turntable, and workpiece placement plate to move vertically upward, thereby raising the height of workpiece C. This facilitates welding processing on the suspended end of workpiece C and allows it to be moved to different workpiece placement plate positions on the welding stand without affecting the rearrangement of workpiece C in assembly line production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0019] Figure 3 This is a top view of the welding stand of this utility model.

[0020] Figure 4 For the present utility model Figure 3 Enlarged structural diagram of section B;

[0021] Figure 5 This is a bottom view of the supporting turntable structure of this utility model;

[0022] Figure 6 This is a cross-sectional structural diagram of the support rod of this utility model;

[0023] In the diagram: 1. Welding stand; 4. Workpiece placement plate; 6. Support rod; 21. Fixing plate; 22. Support plate; 31. Lifting electric actuator; 32. Support turntable; 33. Fixing plate; 51. Fixing block; 52. Pressing rod; 53. Limiting plate; 54. Compression spring; 61. Groove; 71. Stabilizing rod; 72. Retraction spring; 73. Compression block; 74. Clamping plate; 321. Fixing round edge; 511. Limiting rod; 521. Limiting seat; 741. Rotating ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figures 1 to 6This utility model provides a technical solution: a workpiece clamping mechanism for a welding production line, including a welding workbench, a welding frame 1 with support legs D installed at the bottom near the corner, a fixed plate 21 installed between opposing support legs D, and support plates 22 connected to the fixed plate 21 at both ends. The fixed plate 21 is combined with the welding frame 1 and the support plate 22 by conventional methods. The support plate 22 supports the lifting electric push rod 31. The lifting mechanism includes the lifting electric push rod 31 connected to the support plate 22 at the bottom, a fixed plate 33 connected to the top of the lifting electric push rod 31, and a support turntable 32 rotatably connected to the fixed plate 33. When the lifting electric push rod 31 is running, the fixed plate 33, the support turntable 32 and the workpiece placement plate 4 move vertically upward, which can achieve the function of lifting the workpiece C at different heights. The outer surface of the support turntable 32 is provided with a fixed round edge 321. The fixed round edge 321 and the support turntable 32 are combined by conventional methods to limit the position of the limiting plate 53. The limiting mechanism for clamping workpiece C includes a workpiece placement plate 4 whose bottom surface is connected to the support turntable 32, a support rod 6 that supports workpiece C, and a clamping assembly. The clamping assembly includes a stabilizing rod 71 installed inside the support rod 6, a contraction spring 72 sleeved on the outer side of one end of the stabilizing rod 71, a compression block 73 that slides along the axial direction of the stabilizing rod 71, a rotating ring 741 rotatably sleeved on the outer side of the compression block 73, and a clamping plate 74 whose one end is connected to the outer surface of the rotating ring 741. Workpiece C is placed inside the workpiece placement plate 4, and the top surface of the workpiece placement plate 4 is flush with the bottom surface of the workpiece C. The clamping plate 74 rotates about the rotating ring 741 as an axis. Under the elastic force of the contraction spring 72, the clamping plate 74 clamps the workpiece C, making it in a firm state. The clamping plate 74 drives the rotating ring 741 and the compression block 73 to move and squeeze the contraction spring 72. The contraction spring 72 can be compressed to change its own length, and contraction springs of different lengths can also be replaced to adapt to workpieces C of different widths.

[0027] In this embodiment, a pressing assembly is provided on the bottom surface of the fixed plate 33. The pressing assembly includes a fixed block 51 connected to the top of the fixed plate 33, a pressing rod 52 rotatably connected to the fixed block 51 at one end, a limiting plate 53 mounted on the pressing rod 52 at one end, and a compression spring 54 connected to the fixed block 51 and the pressing rod 52 at both ends respectively. The fixed block 51 has an "L" shaped structure and a limiting rod 511 inserted into the bottom end of the compression spring 54. After the workpiece C is lifted, one end of the pressing rod 52 is pressed, and the compression spring 54 is compressed. The angle of the workpiece placement plate 4, the support turntable 32, and the workpiece C is rotated to a suitable position. The pressing rod 52 is released. Under the action of the compression spring 54, one end of the limiting plate 53 is inserted into the slot of the fixed round edge 321, thereby limiting the fixed round edge 321 and the support turntable 32, and thus keeping the workpiece placement plate 4, the support turntable 32, and the workpiece C stable. The angle position of the workpiece C can be changed, which is beneficial for welding at different positions and is convenient for operation and use.

[0028] In this embodiment, the pressing rod 52 is provided with a limiting seat 521. The limiting seat 521 includes an inclined plate connected to the surface of the pressing rod 52 and a connecting post inserted into the top of the compression spring 54. The fixed round edge 321 is perpendicular to the pressing rod 52, and the inclined top of the fixed round edge 321 is curved. The limiting seat 521 and the limiting rod 511 serve to limit the compression spring 54 and prevent the compression spring 54 from falling off after being squeezed and deformed.

[0029] In this embodiment, the outer surface of the fixed circular edge 321 is provided with uniformly distributed slots. The curved top end of the limiting plate 53 cooperates with the slots, and one end of the limiting plate 53 is inserted into the slot of the fixed circular edge 321 to limit the fixed circular edge 321 and the supporting turntable 32.

[0030] In this embodiment, a rectangular groove is provided at the center of the surface of the support rod 6, and a groove 61 communicating with the groove is provided on the side surface of the support rod 6. The clamping plate 74 cooperates with the groove 61, and the clamping plate 74 is inserted into the groove 61, thereby limiting the clamping plate 74.

[0031] In this embodiment, the distance between the top surface of the workpiece placement plate 4 and the top surface of the welding stand 1 is the spacing H. The lifting electric push rod 31 extends up and down by the same distance as the spacing H. The top surface of the support rod 6 is curved. The workpiece C is tangent to the surface of the support rod 6. The friction between the workpiece C and the support rod 6 is small, which does not affect the horizontal sliding position of the workpiece C. This facilitates moving the workpiece C to different positions on the welding stand 1 and does not affect the repositioning of the workpiece C in the production line.

[0032] Working principle and usage process of this utility model:

[0033] When welding workpiece C, workpiece C is placed on workpiece placement plate 6, and workpiece C is tangent to the surface of support rod 6. The friction between workpiece C and support rod 6 is small. Adjust the position of workpiece C.

[0034] The clamping plate 74 rotates around the rotating ring 741. Under the elastic force of the contraction spring 72, the clamping plate 74 clamps the workpiece C, making it in a firm state, thus achieving the clamping of the workpiece C.

[0035] The clamping plate 74 drives the rotating ring 741 and the compression block 73 to move and squeeze the contraction spring 72. The contraction spring 72 can be compressed to change its own length, and contraction springs 72 of different lengths can also be replaced to adapt to workpieces C of different widths.

[0036] The operation of the lifting electric actuator 31 causes the fixed plate 33, the support turntable 32 and the workpiece placement plate 4 to move vertically upward, which can lift the workpiece C to a higher position, making it easier to perform welding processing on the suspended end of the workpiece C.

[0037] Press one end of the pressing rod 52, and the compression spring 54 is compressed, rotating the workpiece placement plate 4, the support turntable 32 and the workpiece C to a suitable position.

[0038] Release the pressing rod 52, and under the action of the compression spring 54, one end of the limiting plate 53 is inserted into the slot of the fixed round edge 321, thereby limiting the fixed round edge 321 and the support turntable 32, and thus keeping the workpiece placement plate 4, the support turntable 32 and the workpiece C stable. The angle position of the workpiece C can be changed, which is conducive to welding at different positions and is easy to operate and use.

[0039] After workpiece C is reset, the friction between workpiece C and support rod 6 is small, which does not affect the horizontal sliding position of workpiece C, making it easier to move it to different workpiece placement plates 4 on welding stand 1, without affecting the rearrangement of workpiece C in production line.

[0040] In summary: The design facilitates the adjustment of the position of large-area workpieces. The operation of the lifting electric actuator 31 causes the fixed plate 33, the support turntable 32, and the workpiece placement plate 4 to move vertically upward, which can lift the workpiece C to a higher or lower position. This facilitates welding processing on the suspended end of the workpiece C and moves it to different positions on the workpiece placement plate 4 on the welding stand 1 without affecting the rearrangement of the workpiece C in the production line.

[0041] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workpiece clamping mechanism for a welding production line, characterized in that: include The welding workbench includes a welding frame (1) with legs D installed at the bottom near the corner, a fixed plate (21) installed between opposite legs D, and a support plate (22) connected to the fixed plate (21) at both ends. The lifting mechanism includes a lifting electric push rod (31) connected to the bottom end of the support plate (22), a fixed plate (33) connected to the top end of the lifting electric push rod (31), and a support turntable (32) rotatably connected to the fixed plate (33). The outer surface of the support turntable (32) is provided with a fixed round edge (321). The limiting mechanism for clamping workpiece C includes a workpiece placement plate (4) whose bottom surface is connected to a support turntable (32), a support rod (6) that supports workpiece C, and a clamping assembly. The clamping assembly includes a stabilizing rod (71) installed inside the support rod (6), a contraction spring (72) sleeved on the outer side of one end of the stabilizing rod (71), a compression block (73) that slides along the axial direction of the stabilizing rod (71), a rotating ring (741) that is rotatably sleeved on the outer side of the compression block (73), and a clamping plate (74) whose one end is connected to the outer surface of the rotating ring (741).

2. The workpiece clamping mechanism of a welding production line according to claim 1, characterized in that: The bottom surface of the fixed plate (33) is provided with a pressing assembly, which includes a fixed block (51) connected to the fixed plate (33) at the top, a pressing rod (52) rotatably connected to the fixed block (51) at one end, a limiting plate (53) installed on the pressing rod (52) at one end, and a compression spring (54) connected to the fixed block (51) and the pressing rod (52) at both ends respectively.

3. The workpiece clamping mechanism of a welding production line according to claim 2, characterized in that: The fixing block (51) has an "L" shaped structure, and the fixing block (51) is provided with a limiting rod (511) that is inserted into the bottom end of the compression spring (54).

4. The workpiece clamping mechanism of a welding production line according to claim 3, characterized in that: The pressing rod (52) is provided with a limiting seat (521), which includes an inclined plate connected to the surface of the pressing rod (52) and a connecting post inserted into the top of the compression spring (54). The fixed round edge (321) is perpendicular to the pressing rod (52), and the inclined top of the fixed round edge (321) is curved.

5. The workpiece clamping mechanism for a welding production line according to claim 4, characterized in that: The outer surface of the fixed round edge (321) is provided with uniformly distributed slots, and the curved top of the limiting plate (53) cooperates with the slots.

6. The workpiece clamping mechanism of a welding production line according to claim 1, characterized in that: A rectangular groove is provided at the center of the surface of the support rod (6), and a groove (61) communicating with the groove is provided on the side surface of the support rod (6). The clamping plate (74) cooperates with the groove (61).

7. The workpiece clamping mechanism of a welding production line according to claim 1, characterized in that: The distance between the top surface of the workpiece placement plate (4) and the top surface of the welding stand (1) is the spacing H. The lifting electric push rod (31) extends up and down by the same distance as the spacing H. The top surface of the support rod (6) is curved.

Images