Plate welding clamp tool

Abstract

The utility model discloses a plate welding clamp tool which comprises an installation frame and a workbench, the workbench is fixedly installed on the upper end face of the installation frame, mirror symmetry welding assemblies are installed on the upper end face of the workbench, and each welding assembly comprises a sliding base plate, a containing base, a welding piece and a driving motor. The sliding base plate is installed on the upper end face of the workbench in a sliding mode, the containing base and the welding piece are fixedly installed on the upper end face of the sliding base plate, the driving motor is fixedly installed on the workbench, and a driving shaft of the driving motor is connected with a lead screw. The lead screw penetrates through the lower portion of the containing base and is rotationally connected with a fixing base fixedly installed on the workbench through a bearing, the lead screw is in threaded fit with the containing base, and clamping assemblies used for clamping and fixing a workpiece are installed on the sliding base plate and the fixing base. The automatic welding device has the advantages that the workpiece can be automatically clamped, a plurality of welding points on the workpiece can be welded at the same time, and the welding efficiency and the welding effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile processing equipment, in particular to a plate welding fixture tooling. Background Art

[0002] At present, when welding auto parts, the parts to be welded are usually placed on the welding platform, and the worker needs to press the parts with one hand and weld them with the other hand, which is very inconvenient to operate. In addition, during the welding process, the manual pressing of the parts and the shaking of the arm can easily cause the parts to shake, thereby affecting the welding quality of the parts and further affecting the processing quality of the parts. On the other hand, for long plate workpieces that require multi-section welding, they need to be welded sequentially, which has low welding efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a plate welding fixture, which has the advantages of being able to automatically clamp a workpiece and simultaneously weld multiple welding points on the workpiece, thereby improving welding efficiency and welding effect.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a plate welding fixture tooling, including a mounting frame and a workbench, the workbench is fixedly mounted on the upper end surface of the mounting frame, and a mirror-symmetrical welding component is installed on the upper end surface of the workbench, the welding component includes a sliding base plate, a placement seat, a welding part and a driving motor, the sliding base plate is slidably mounted on the upper end surface of the workbench, the placement seat and the welding part are fixedly mounted on the upper end surface of the sliding base plate, the driving motor is fixedly mounted on the workbench, and the driving shaft of the driving motor is connected to a screw rod, the screw rod passes through the lower part of the placement seat and is rotatably connected to a fixed seat fixedly mounted on the workbench through a bearing, and the screw rod is threadably adapted to the placement seat, and a clamping component for clamping a fixed workpiece is installed on the sliding base plate and the fixed seat.

[0005] Furthermore, the clamping assembly includes a first telescopic cylinder and a second telescopic cylinder, wherein the first telescopic cylinder is fixedly mounted on a sliding base plate, and a pressure plate facing the rear end face of the workpiece is mounted on its telescopic end, and the second telescopic cylinder is fixedly mounted on an upper end face of a fixed seat, and a pressure block facing the left and right end faces of the workpiece is mounted on its telescopic end.

[0006] Furthermore, the welding part includes a support base, a third telescopic cylinder and a welding head. The third telescopic cylinder is fixedly mounted on the support base, and a first hinged rod is hinged on the telescopic end thereof. The other end of the first hinged rod is fixedly connected to the welding head. A second hinged rod is hinged at the middle part of the first hinged rod, and the other end of the second hinged rod is hinged to the upper part of the support base.

[0007] Furthermore, a limiting plate for limiting the forward and backward movement of the workpiece is provided on the rear end surface of the placement seat.

[0008] Furthermore, a gasket for fitting with the side of the workpiece is provided on the side of the placement seat facing the pressing block.

[0009] Furthermore, the cross section of the gasket is L-shaped, and the side surface of the placement seat is provided with a clamping structure adapted to the bottom surface of the gasket.

[0010] Furthermore, the clamping structure includes a fixed block fixedly mounted on the side of the placement seat, the upper end surface of the fixed block is provided with a groove, a sliding block is slidably mounted in the groove, and the bottom surface of the gasket is in contact with the upper end surface of the sliding block.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] When the clamping assembly clamps and fixes the workpiece, the telescopic ends of the two second telescopic cylinders that are mirror-symmetrical extend, and the pressure blocks thereon respectively press tightly against the left and right end faces of the workpiece, limiting the degree of freedom in the axial direction of the workpiece and preventing the workpiece from moving left and right. On the other hand, the telescopic end of the first telescopic cylinder extends to allow the pressure plate thereon to press tightly against the welding point on the rear end face of the workpiece, limiting the degree of freedom in the radial direction of the workpiece and preventing the workpiece from moving forward and backward. It can also prevent the welding point from arching outward and causing uneven welding end faces under the squeezing of the left and right second telescopic cylinders.

[0013] By using two welding assemblies arranged in mirror symmetry, two welding points on the workpiece can be welded simultaneously, which not only speeds up the welding efficiency of the workpiece, but also ensures that the two welding points of the workpiece will not shift from the preset positions during welding, thereby improving the welding effect of the workpiece and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 is a structural schematic diagram of the second telescopic cylinder;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the workpiece and the placement seat;

[0018] Figure 5 A cross-sectional view of the clamping structure.

[0019] In the figure: 1. mounting frame; 2. workbench; 3. sliding base plate; 4. placement seat; 5. welding part; 6. driving motor; 7. screw rod; 8. fixed seat; 9. workpiece; 10. first telescopic cylinder; 11. second telescopic cylinder; 12. pressure plate; 13. pressure block; 501. support seat; 502. third telescopic cylinder; 503. welding head; 504. first hinge rod; 505. second hinge rod; 14. limit plate; 15. gasket; 16. fixed block; 17. sliding block; 18. guide rail; 19. spring. DETAILED DESCRIPTION

[0020] The utility model will be further described below.

[0021] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] See also Figure 1-5

[0024] The mounting frame 1 comprises a mounting frame 1 and a workbench 2. The four corners of the lower end of the mounting frame 1 are provided with connecting plates. The connecting plates are fixedly mounted on the ground by means of mounting bolts through the connection method of the bolts to ensure the overall stability of the mounting frame 1. The workbench 2 is fixedly mounted on the upper end surface of the mounting frame 1. The workbench 2 is a rectangular plate with a plurality of threaded holes in the middle, which is fixedly mounted on the upper end surface of the mounting frame 1 by means of screw connection. The upper end surface of the workbench 2 is installed with a mirror-symmetrical welding assembly. When welding a workpiece 9, the workpiece 9 is divided into three sections, so there are two welding points. In the existing welding process, the two welding points are performed separately. At present, When welding a welding point, a large amount of heat will be generated during the welding process. The thickness of the workpiece 9 is relatively thin, so it will produce certain micro-deformations after being heated, and certain internal stresses will be generated after cooling. Therefore, when the workpiece 9 is cooled and the second welding point is welded, the position of the welding point may be offset from the pre-set position, thereby affecting the overall welding effect of the workpiece 9. The two welding points on the workpiece 9 can be welded simultaneously through two welding assemblies arranged in mirror symmetry, which not only speeds up the welding efficiency of the workpiece 9, but also ensures that the two welding points of the workpiece 9 will not deviate from the preset position during welding, thereby improving the welding effect of the workpiece 9 and reducing the scrap rate. Figure 1 As shown, in this embodiment, two sets of mirror-symmetrical welding assemblies are provided, which can weld two workpieces at the same time, further improving the welding efficiency.

[0025] The welding assembly includes a sliding base plate 3, a placement seat 4, a welding piece 5 and a driving motor 6. The sliding base plate 3 is slidably mounted on the upper end surface of the workbench 2. Specifically, a guide rail 18 is provided on the workbench 2. Two guide rails 18 are provided in parallel. The cross-sectional shape of the guide rail 18 is an "I" shape. The lower end surface of the sliding base plate 3 is engaged with the guide rail 18. The sliding base plate 3 can slide back and forth along the length direction of the guide rail 18, thereby realizing the adjustment of the relative position between the sliding base plate 3 and the workpiece 9; the placement seat 4 and the welding piece 5 are fixedly mounted on the upper end surface of the sliding base plate 3, and the welding piece 5 is located on the side close to the placement seat 4. When welding the workpiece 9, the welding point of the workpiece 9 is located on the placement seat 4, which plays a supporting role on the welding point and facilitates the welding process of the welding piece 5. The driving motor 6 is fixedly mounted on the workbench 2, and the driving shaft of the driving motor 6 is connected with a screw 7, which passes through the lower part of the placement seat 4 and is rotatably connected to a fixed seat 8 fixedly mounted on the workbench 2 through a bearing, and the screw 7 is threadedly adapted to the placement seat 4; in the actual welding process of the workpiece 9, since the length of each section of the workpiece 9 is different, the position of its welding point is also different. The driving motor 6 can realize automatic adjustment of the position of the placement seat 4, so that the position of the placement seat 4 is adapted to the corresponding welding point. When the driving motor 6 rotates forward and drives the screw 7 to rotate forward, the entire sliding base plate 3 moves to the left (i.e., away from the direction of another welding component) driven by the placement seat 4; when the driving motor rotates reversely, the entire sliding base plate 3 moves to the right driven by the placement seat 4.

[0026] The sliding base plate 3 and the fixed seat 8 are provided with a clamping assembly for clamping the fixed workpiece 9. The clamping assembly includes a first telescopic cylinder 10 and a second telescopic cylinder 11, wherein the first telescopic cylinder 10 is fixedly mounted on the sliding base plate 3, and a pressing plate 12 facing the rear end surface of the workpiece 9 is mounted on the telescopic end thereof, and the second telescopic cylinder 11 is fixedly mounted on the upper end surface of the fixed seat 8, and a pressing block 13 facing the left and right end surfaces of the workpiece 9 is mounted on the telescopic end thereof. When the clamping assembly clamps and fixes the workpiece 9, the telescopic ends of the two mirror-symmetrical second telescopic cylinders 11 extend, and the pressure blocks 13 thereon respectively press tightly against the left and right end faces of the workpiece 9, limiting the freedom of the workpiece 9 in the axial direction and preventing the workpiece 9 from moving left and right. On the other hand, the telescopic end of the first telescopic cylinder 10 extends to allow the pressure plate 12 thereon to press tightly against the welding point on the rear end face of the workpiece 9, limiting the freedom of the workpiece 9 in the radial direction and preventing the workpiece 9 from moving forward and backward. It can also prevent the welding point from arching outward and causing uneven welding end faces under the squeezing of the left and right second telescopic cylinders 11.

[0027] Specifically, in this embodiment, the welding part 5 includes a support base 501, a third telescopic cylinder 502 and a welding head 503. The third telescopic cylinder 502 is fixedly installed on the support base 501, and a first hinged rod 504 is hinged on its telescopic end. The other end of the first hinged rod 504 is fixedly connected to the welding head 503. A second hinged rod 505 is hinged in the middle of the first hinged rod 504, and the other end of the second hinged rod 505 is hinged to the upper part of the support base 501. The height of the welding head 503 can be adjusted by cooperating with the first hinge rod 504 and the second hinge rod 505. When the telescopic end of the third telescopic cylinder 502 extends forward, the first hinge rod 504 is driven to rotate upward, thereby driving the welding head 503 to rotate upward. When the telescopic end of the third telescopic cylinder 502 contracts backward, the first hinge rod 504 is driven to rotate downward, thereby driving the welding head 503 to rotate downward. When the welding head 503 rotates up and down, the port of the welding head 503 will also move horizontally along the front and rear end surfaces of the workpiece 9 for a certain distance. The rotation of the welding head 503 facilitates the complete welding of the welding spot weld. The welding head 503 can use an existing laser welding head to achieve welding of the workpiece 9.

[0028] Specifically, in this embodiment, the rear end face of the placement seat 4 is provided with a limit plate 14 for limiting the forward and backward movement of the workpiece 9. The limit plate 14 is a conical plate composed of two straight plates, one of which is fixedly connected to the rear end face of the placement seat 4 by screw connection, and a V-shaped groove is formed between the other straight plate and the rear end face of the placement seat 4. The front and rear direction of the workpiece 9 is limited by inserting one end of the workpiece 9 into the V-shaped groove.

[0029] Specifically, in this embodiment, a gasket 15 for fitting with the side of the workpiece 9 is provided on the side of the placement seat 4 facing the pressing block 13. The force transmitted by the gasket 15 makes the side of the workpiece 9 more evenly stressed, thereby ensuring the stability of the workpiece 9 when subjected to stress and preventing the workpiece 9 from deflecting due to uneven side force.

[0030] Specifically, in this embodiment, the cross section of the gasket 15 is L-shaped, and the side of the placement seat 4 is provided with a clamping structure adapted to the bottom surface of the gasket 15. The clamping structure includes a fixed block 16 fixedly installed on the side of the placement seat 4, the upper end surface of the fixed block 16 is provided with a groove, and a sliding block 17 is slidably installed in the groove, the bottom surface of the gasket 15 is in contact with the upper end surface of the sliding block 17, and the sliding block 17 is installed in the groove of the fixed block 16 by a screw, and the screw is divided into an upper smooth part and a lower threaded part, the threaded part is threadedly connected to the fixed block 16, and a spring 19 is sleeved on the smooth part, and the sliding block 17 can slide up and down on the smooth part of the screw. When the gasket 15 is placed on the sliding block 17, the sliding block can be pressed down, so that the spring 19 is in a compressed state, and the initial fixation of the gasket 15 is achieved by the rebound force of the spring 19.

[0031] Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. Changes and improvements to the utility model will be possible without exceeding the concept and scope specified in the attached claims. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. Plate welding fixture, characterized by: The invention comprises a mounting frame (1) and a workbench (2), wherein the workbench (2) is fixedly mounted on the upper end surface of the mounting frame (1), and a mirror-symmetrical welding assembly is mounted on the upper end surface of the workbench (2), wherein the welding assembly comprises a sliding base plate (3), a placement seat (4), a welding piece (5) and a driving motor (6), wherein the sliding base plate (3) is slidably mounted on the upper end surface of the workbench (2), the placement seat (4) and the welding piece (5) are fixedly mounted on the upper end surface of the sliding base plate (3), and the driving motor (6) is fixedly mounted on the workbench (2), and a driving shaft of the driving motor (6) is connected with a screw rod (7), wherein the screw rod (7) passes through the lower part of the placement seat (4) and is rotatably connected with a fixed seat (8) fixedly mounted on the workbench (2) via a bearing, and the screw rod (7) is threadably matched with the placement seat (4), and a clamping assembly for clamping a fixed workpiece (9) is mounted on the sliding base plate (3) and the fixed seat (8).

2. The plate welding fixture according to claim 1, characterized in that: The clamping assembly comprises a first telescopic cylinder (10) and a second telescopic cylinder (11), wherein the first telescopic cylinder (10) is fixedly mounted on a sliding base plate (3), and a pressure plate (12) facing the rear end surface of a workpiece (9) is mounted on the telescopic end thereof, and the second telescopic cylinder (11) is fixedly mounted on the upper end surface of a fixed seat (8), and a pressure block (13) facing the left and right end surfaces of the workpiece (9) is mounted on the telescopic end thereof.

3. The plate welding fixture according to claim 2, characterized in that: The welding component (5) comprises a support base (501), a third telescopic cylinder (502) and a welding head (503); the third telescopic cylinder (502) is fixedly mounted on the support base (501), and a first hinged rod (504) is hinged on the telescopic end thereof; the other end of the first hinged rod (504) is fixedly connected to the welding head (503); a second hinged rod (505) is hinged at the middle of the first hinged rod (504); the other end of the second hinged rod (505) is hinged to the upper part of the support base (501).

4. The plate welding fixture according to claim 2, characterized in that: The rear end surface of the placement seat (4) is provided with a limiting piece (14) for limiting the forward and backward movement of the workpiece (9).

5. The plate welding fixture according to claim 4, characterized in that: A gasket (15) for fitting with the side of the workpiece (9) is provided on the side of the placement seat (4) facing the pressing block (13).

6. The plate welding fixture according to claim 5, characterized in that: The cross section of the gasket (15) is L-shaped, and the side surface of the placement seat (4) is provided with a clamping structure adapted to the bottom surface of the gasket (15).

7. The plate welding fixture according to claim 6, characterized in that: The clamping structure comprises a fixed block (16) fixedly mounted on the side of the placement seat (4); a groove is provided on the upper end surface of the fixed block (16); a sliding block (17) is slidably mounted in the groove; and the bottom surface of the gasket (15) is in contact with the upper end surface of the sliding block (17).

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