Simple fixture for arc welding of nut

Abstract

The utility model discloses a nut arc welding simple fixture, including clamp module, the clamp module includes clamping mechanism and positioning mechanism, the positioning mechanism includes assembly positioning pin and main positioning pin, and workpiece is positioned on clamping mechanism by main positioning pin, and nut is positioned on workpiece by assembly positioning pin, clamping mechanism includes the head of pressing and be used for the range of activity of the limit stop of welding torch nozzle, the limit stop sets up at the bottom of head of pressing, and the head of pressing is used for the nut on workpiece by assembly positioning pin with workpiece pressure tightly. Overcome the length of the weld between the nut on workpiece and workpiece not easy unified problem.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a simple clamp for arc welding of nuts. Background Technology

[0002] In the chassis manufacturing process, welding nuts to the components that make up the chassis is an essential step. To ensure the strength of the connection, the weld length between the nut and the component must meet technical requirements. However, in actual production, because the welding work is performed by different welders with varying levels of experience, there are significant differences in the weld length between the nut and the component on the same type of workpiece. This not only affects the aesthetics of the workpiece but also the final connection strength, leading to product defects. Summary of the Invention

[0003] This utility model provides a simple fixture for arc welding of nuts, which overcomes the problem that the length of the weld between the nut and the workpiece is not easy to be uniform.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A simple clamp for arc welding of nuts includes a clamp module, wherein the clamp module includes a clamping mechanism and a positioning mechanism;

[0006] The positioning mechanism includes an assembly positioning pin and a main positioning pin. The workpiece is positioned on the clamping mechanism by the main positioning pin, and the nut is positioned on the workpiece by the assembly positioning pin.

[0007] The clamping mechanism includes a pressure head and a limiting stop for restricting the range of motion of the welding torch nozzle. The limiting stop is located at the bottom of the pressure head, which is used to clamp the nut, which is positioned on the workpiece by the assembly positioning pin, to the workpiece.

[0008] Furthermore, the limiting stop includes two baffles and two extension rods, with the two baffles arranged opposite to each other;

[0009] The extension rod is fixed to the outer periphery of the pressure head, and the baffle is fixed to the end of the extension rod away from the pressure head. The two baffles arranged opposite each other form a constrained space that allows the welding torch nozzle to move.

[0010] Furthermore, two limit stops are symmetrically arranged on the pressure head.

[0011] Furthermore, the positioning mechanism also includes a secondary positioning pin, which is used to position the end of the workpiece away from the clamping mechanism.

[0012] Furthermore, the positioning mechanism also includes a mounting base, and the secondary positioning pin is disposed on the mounting base.

[0013] Furthermore, the clamping mechanism includes a cylinder, a clamping lever, and a support hinged to the clamping lever via a pin, wherein the assembly positioning pin and the main positioning pin are disposed on the support;

[0014] The piston cylinder of the cylinder is hinged to the support, the piston rod of the cylinder is hinged to one end of the clamping lever, and the other end of the clamping lever is provided with a pressure head;

[0015] The piston rod of the cylinder can drive the clamping lever to rotate around the pin shaft, so that the pressure head can press the nut, which is positioned on the workpiece by the assembly positioning pin, and the workpiece onto the support.

[0016] Furthermore, it also includes a worktable, on which the fixture module is fixed.

[0017] Furthermore, the workbench is equipped with multiple clamping modules.

[0018] Beneficial effects:

[0019] This utility model provides a simple clamp for arc welding of nuts. By setting a limiting stop at the bottom of the pressure head to restrict the range of motion of the welding torch nozzle, the range of motion of the welding torch nozzle is constrained when the welder welds the clamped nut and the workpiece. The welder only needs to complete the welding of the contact part between the nut and the workpiece within the range of motion of the welding torch nozzle to meet the technical requirements of the weld length. The welding length no longer depends on experience, but is standardized, effectively ensuring the final connection strength between the nut and the workpiece. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a simple nut arc welding fixture disclosed in this utility model;

[0022] Figure 2 This is a schematic diagram of the clamping mechanism of a simple nut arc welding fixture disclosed in this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping mechanism of a simple nut arc welding fixture disclosed in this utility model, with part of the support removed.

[0024] Figure 4 This is a schematic diagram of the structure of a simple nut arc welding fixture for clamping a workpiece, as disclosed in this utility model.

[0025] Figure 5 This is a schematic diagram of the clamping mechanism of a simple nut arc welding fixture disclosed in this utility model, which clamps the workpiece.

[0026] Figure 6 This is a schematic diagram showing the position of the baffle and the nut when clamping a workpiece using a simple nut arc welding fixture disclosed in this utility model.

[0027] In the picture:

[0028] 1. Pressure head;

[0029] 2. Baffle;

[0030] 3. Extension rod;

[0031] 4. Assemble the locating pins;

[0032] 5. Main positioning pin;

[0033] 6. Secondary locating pin;

[0034] 7. Pin;

[0035] 8. Mounting bracket;

[0036] 9. Cylinder;

[0037] 10. Workbench;

[0038] 11. Tighten the lever;

[0039] 12. Support;

[0040] A. Workpiece; B. Nut. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] Example 1

[0043] This embodiment provides a simple fixture for arc welding of nuts, including a fixture module, wherein the fixture module includes a clamping mechanism and a positioning mechanism;

[0044] like Figure 2 As shown, the positioning mechanism includes an assembly positioning pin 4 and a main positioning pin 5. Workpiece A is positioned on the clamping mechanism by the main positioning pin 5, and nut B is positioned on workpiece A by the assembly positioning pin 4.

[0045] The clamping mechanism includes a pressure head 1 and a limiting stop for restricting the range of motion of the welding torch nozzle. The limiting stop is located at the bottom of the pressure head 1. The pressure head 1 is used to press the nut B, which is positioned on the workpiece A by the assembly positioning pin 4, against the workpiece A.

[0046] This embodiment provides a simple nut arc welding fixture. By providing a limiting stop at the bottom of the pressure head 1 to restrict the range of motion of the welding torch nozzle, the range of motion of the welding torch nozzle is constrained when the welder welds the clamped nut B and the workpiece A. The welder only needs to complete the welding of the contact part between the nut B and the workpiece A within the range of motion of the welding torch nozzle to meet the technical requirements of the weld length. The welding length no longer depends on experience but is standardized, effectively ensuring the final connection strength between the nut B and the workpiece A.

[0047] In a specific embodiment, such as Figure 3 and Figure 6 As shown, the limiting stop includes two baffles 2 and two extension rods 3, with the two baffles 2 arranged opposite to each other;

[0048] The extension rod 3 is welded and fixed to the outer periphery of the pressure head 1, and the baffle 2 is welded and fixed to the end of the extension rod 3 away from the pressure head 1. The two baffles 2 arranged opposite each other form a constrained space that allows the welding torch nozzle to move. In actual operation, the welder needs to put the outer periphery of the nozzle against one of the baffles 2 to start the welding operation. Then, the nozzle moves towards the other baffle 2 until the outer periphery of the nozzle touches the other baffle 2. At this time, the welding work of the weld seam is completed.

[0049] Extension rod 3 provides a mounting base for baffle 2, facilitating the arrangement of baffle 2, such as... Figure 5 As shown, when the pressure head 1 presses the nut B, the baffle 2 is kept at a certain distance from both the nut B and the workpiece A to prevent the baffle 2 from being welded to the nut B when the pressure head 1 presses the nut B, as this would cause the baffle 2 to be close to the contact point between the nut B and the workpiece A.

[0050] In a specific embodiment, such as Figure 3 and Figure 6 As shown, two limit stops are symmetrically arranged on the pressure head 1 to ensure that two symmetrical welds are formed between the nut B and the workpiece A through the constraint of the two limit stops. Figure 6 For example, through two limit stops, nut B and workpiece A form two symmetrical welds on the left and right sides, ensuring the connection strength.

[0051] In a specific embodiment, such as Figure 1As shown, the positioning mechanism also includes a secondary positioning pin 6, which is used to position the end of the workpiece A away from the clamping mechanism. The workpiece A is constrained by the main positioning pin 5 and the secondary positioning pin 6 (the main positioning pin 5 and the secondary positioning pin 6 correspond to the positioning holes on the workpiece A) to ensure the positioning effect.

[0052] When the size of workpiece A is small, the secondary locating pin 6 can be omitted, and positioning can be achieved solely through the assembly locating pin 4 and the main locating pin 5.

[0053] In a specific embodiment, such as Figure 1 As shown, the positioning mechanism also includes a mounting base 8, and the secondary positioning pin 6 is disposed on the mounting base 8. In this embodiment, the mounting base 8 is provided with a pin hole for mounting the secondary positioning pin 6.

[0054] In a specific embodiment, such as Figure 3 As shown, the clamping mechanism includes a cylinder 9, a clamping lever 11, and a support 12 hinged to the clamping lever 11 via a pin 7. The assembly positioning pin 4 and the main positioning pin 5 are disposed on the support 12. The workpiece A is positioned on the support 12 by the main positioning pin 5. In this embodiment, the support 12 is provided with two pin holes for installing the assembly positioning pin 4 and the main positioning pin 5 respectively.

[0055] The piston cylinder of the cylinder 9 is hinged to the support 12, the piston rod of the cylinder 9 is hinged to one end of the clamping lever 11, and the other end of the clamping lever 11 is fixed with a pressure head 1.

[0056] The piston rod of the cylinder 9 can drive the clamping lever 11 to rotate around the pin 7, so that the pressure head 1 can press the nut B, which is positioned on the workpiece A by the assembly positioning pin 4, onto the support 12.

[0057] In this embodiment, the support 12 includes a first support for mounting the assembly positioning pin 4 and the main positioning pin 5 and a second support for mounting the cylinder 9, and the first support and the second support are fixedly connected by bolts.

[0058] In a specific embodiment, such as Figure 1 and Figure 4 As shown, it also includes a workbench 10, on which the fixture module is fixed. The workbench 10 can raise the height of the fixture module, thereby providing a suitable operating height for the welder.

[0059] Example 2

[0060] This embodiment provides a simple fixture for arc welding nuts. The main structure of this embodiment is the same as that of Embodiment 1. The difference between this embodiment and Embodiment 1 is as follows:

[0061] In this embodiment, as Figure 1 and Figure 4 As shown, the workbench 10 is equipped with multiple clamping modules. These clamping modules can be designed to clamp the same workpiece or to clamp different workpieces (in...). Figure 1 and Figure 4 In the middle, there are two clamping modules on the workbench 10. Only one complete clamping module is shown in the figure. The other clamping module is only shown with the support 12 drawn to illustrate its position.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A simple clamp for arc welding of nuts, characterized in that, The fixture module includes a clamping mechanism and a positioning mechanism. The positioning mechanism includes an assembly positioning pin (4) and a main positioning pin (5). The workpiece (A) is positioned on the clamping mechanism by the main positioning pin (5), and the nut (B) is positioned on the workpiece (A) by the assembly positioning pin (4). The clamping mechanism includes a pressure head (1) and a limiting stop for limiting the range of motion of the welding torch nozzle. The limiting stop is located at the bottom of the pressure head (1). The pressure head (1) is used to clamp the nut (B) positioned on the workpiece (A) by the assembly positioning pin (4) to the workpiece (A).

2. The simple nut arc welding fixture according to claim 1, characterized in that, The limiting stop includes two baffles (2) and two extension rods (3), with the two baffles (2) arranged opposite to each other; The extension rod (3) is fixed on the outer periphery of the pressure head (1), and the baffle (2) is fixed on the end of the extension rod (3) away from the pressure head (1). The two baffles (2) arranged opposite to each other form a constrained space that allows the welding torch nozzle to move.

3. A simple nut arc welding fixture according to claim 2, characterized in that, Two limit stops are symmetrically arranged on the pressure head (1).

4. A simple nut arc welding fixture according to claim 1, characterized in that, The positioning mechanism also includes a secondary positioning pin (6), which is used to position the end of the workpiece (A) away from the clamping mechanism.

5. A simple nut arc welding fixture according to claim 4, characterized in that, The positioning mechanism also includes a mounting base (8), and the secondary positioning pin (6) is disposed on the mounting base (8).

6. A simple nut arc welding fixture according to claim 1, characterized in that, The clamping mechanism includes a cylinder (9), a clamping lever (11), and a support (12) hinged to the clamping lever (11) via a pin (7). The assembly positioning pin (4) and the main positioning pin (5) are provided on the support (12). The piston cylinder of the cylinder (9) is hinged to the support (12), the piston rod of the cylinder (9) is hinged to one end of the clamping lever (11), and the other end of the clamping lever (11) is provided with a pressure head (1). The piston rod of the cylinder (9) can drive the clamping lever (11) to rotate around the pin (7), so that the pressure head (1) can press the nut (B) positioned on the workpiece (A) by the assembly positioning pin (4) onto the support (12).

7. A simple nut arc welding fixture according to claim 1, characterized in that, It also includes a workbench (10), on which the fixture module is fixed.

8. A simple nut arc welding fixture according to claim 7, characterized in that, The workbench (10) is equipped with multiple clamping modules.

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