Welding fixture

Abstract

The utility model relates to the technical field of clamps, in particular to a welding clamp. Comprising a base, and walking wheels are arranged on the base and used for driving the base to move; the clamping mechanism comprises a clamping seat, a fixed clamping jaw and a movable clamping jaw; the fixed clamping jaw is fixed on the clamping seat, and the movable clamping jaw is movably arranged on the clamping seat along the length direction of the clamping seat; the adjusting mechanism is arranged on the base, connected with the clamping mechanism and used for adjusting the relative position of the clamping mechanism and the base; the first positioning piece is arranged on the movable clamping jaw; the second positioning piece is arranged on the clamping seat, and the second positioning piece can abut against the first positioning piece so as to limit movement of the movable clamping jaw on the clamping seat; and the driving piece is arranged on the clamping seat and is used for driving the second positioning piece to move so as to release the abutting between the second positioning piece and the first positioning piece. The application range is wide, and the universality is high.

Description

Technical Field

[0001] This application relates to the technical field of jigs, and particularly to a welding jig. Background Art

[0002] A jig refers to a device used in the mechanical manufacturing process to fix the processing object, make it occupy the correct position, and accept construction or inspection, also known as a fixture. Generally speaking, any device used to quickly, conveniently, and safely install a workpiece in any process of the technological process can be called a jig.

[0003] During the processing of auto parts, welding jigs are often required to clamp the parts. However, traditional welding jigs have the following disadvantages:

[0004] 1. Usually, structures such as bolts and positioning pins are used to clamp the parts, which is relatively cumbersome to operate and has poor versatility.

[0005] 2. Usually fixed at the processing position, it is not convenient to move and cannot be applied to multiple working scenarios. Summary of the Utility Model

[0006] Based on this, it is necessary to provide a welding jig with high versatility and convenient movement.

[0007] A welding jig includes:

[0008] A base, on which traveling wheels are provided for driving the base to move;

[0009] A clamping mechanism, which includes a clamp seat, a fixed clamping jaw, and a movable clamping jaw; the fixed clamping jaw is fixed on the clamp seat, and along the length direction of the clamp seat, the movable clamping jaw is movably arranged on the clamp seat;

[0010] An adjusting mechanism, arranged on the base and connected to the clamping mechanism for adjusting the relative position between the clamping mechanism and the base;

[0011] A first positioning member, arranged on the movable clamping jaw;

[0012] A second positioning member, arranged on the clamp seat, and the second positioning member can be in contact with the first positioning member to limit the movement of the movable clamping jaw on the clamp seat;

[0013] A driving member, arranged on the clamp seat, for driving the second positioning member to move to release the contact between the second positioning member and the first positioning member.

[0014] In one embodiment, along the height direction of the clamp seat, the second positioning member is movably arranged on the clamp seat; the driving member drives the second positioning member to move in the height direction of the clamp seat.

[0015] In one embodiment, an installation cavity is provided in the clamping seat, and a slotted opening is provided on one side of the clamping seat close to the clamping jaw. The slotted opening is communicated with the installation cavity. The movable clamping jaw is provided with a connecting portion. The connecting portion slidably penetrates through the slotted opening and partially extends into the installation cavity. The first positioning member and the second positioning member are both arranged in the installation cavity.

[0016] In one embodiment, the driving member includes a movable rod, a button member and an elastic member. The movable rod is slidably penetrated through the clamping seat in the up-and-down direction, and the upper end thereof penetrates out of the clamping seat. The button member is connected to the upper end of the movable rod. The elastic member is connected to the movable rod.

[0017] In one embodiment, the second positioning member is connected to the movable rod. When the movable rod moves downward, the second positioning member and the first positioning member move away from each other. When the movable rod moves upward, the second positioning member and the first positioning member move close to each other and abut against each other.

[0018] In one embodiment, the first positioning member is a first convex tooth provided on the lower surface of the connecting portion. The second positioning member includes an extension rod and a second convex tooth. The extension rod extends from the movable rod to below the first convex tooth. The second convex tooth is provided on the upper surface of the extension rod.

[0019] In one embodiment, a roller is provided at one end of the connecting portion that penetrates into the installation cavity. A chute that cooperates with the roller is provided in the installation cavity. The chute extends along the length direction of the clamping seat.

[0020] In one embodiment, two connecting portions are provided. Along the height direction of the clamping seat, the two connecting portions are distributed vertically.

[0021] In one embodiment, clamping plates are respectively hinged on the fixed clamping jaw and the movable clamping jaw. The clamping plates are arranged at one ends of the fixed clamping jaw and the movable clamping jaw far from the clamping seat.

[0022] In one embodiment, a counterweight is provided on the base. The counterweight is fixedly connected / detachably connected to the base.

[0023] Compared with the prior art, the welding fixture has the following advantages:

[0024] 1. The workpiece is clamped by the fixed clamping jaw and the movable clamping jaw. The movable clamping jaw can move relative to the fixed clamping jaw, so as to be able to adapt to the clamping of workpieces of different sizes and models, with a wide adaptation range and high versatility.

[0025] 2. By utilizing the cooperation between the second positioning member and the first positioning member, the movement of the movable jaw is restricted. Then, the second positioning member is driven to move by the driving member, and the abutment between the second positioning member and the first positioning member is released. That is, only by operating the driving member can the position locking of the movable jaw be quickly released, and then the clamping of the workpiece by the movable jaw can be loosened. There is no need for cumbersome operations, which saves time and effort and has high work efficiency. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of the welding fixture provided by the present application.

[0028] Figure 2 For Figure 1 Partial schematic diagram in

[0029] Figure 3 For Figure 2 Cross-sectional view along line A-A in

[0030] Figure 4 For Figure 3 Enlarged view at A in

[0031] Figure 5 Structural schematic diagram of the driving member and the second positioning member provided by the present application.

[0032] Figure 6 Structural schematic diagram of one embodiment of the counterweight member provided by the present application.

[0033] Reference numerals: 10, base; 11, walking wheels; 20, clamping mechanism; 21, clamping seat; 211, installation cavity; 212, slot; 213, mounting plate; 214, chute; 22, fixed jaw; 23, movable jaw; 231, connecting portion; 232, roller; 30, adjusting mechanism; 31, first hydraulic rod; 32, second hydraulic rod; 40, first positioning member; 41, first convex tooth; 50, second positioning member; 51, extension rod; 52, second convex tooth; 60, driving member; 61, movable rod; 62, button member; 63, elastic member; 70, clamping plate; 81, counterweight member; 82, groove; 83, handle. Detailed Embodiments

[0034] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for illustrative purposes and do not represent the only implementation.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the description of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the description of the present application includes any and all combinations of one or more of the related listed items.

[0039] Please refer to Figures 1 to 6The present application provides a welding fixture, including a base 10, a clamping mechanism 20, an adjusting mechanism 30, a first positioning member 40, a second positioning member 50 and a driving member 60. Specifically, a walking wheel 11 is provided on the base 10 for driving the base 10 to move. The clamping mechanism 20 includes a clamping seat 21, a fixed clamping jaw 22 and a movable clamping jaw 23. The fixed clamping jaw 22 is fixed on the clamping seat 21, and the movable clamping jaw 23 is movably provided on the clamping seat 21 along the length direction of the clamping seat 21. The adjusting mechanism 30 is provided on the base 10 and connected to the clamping mechanism 20, and is used to adjust the relative position of the clamping mechanism 20 and the base 10. The first positioning member 40 is provided on the movable clamping jaw 23. The second positioning member 50 is provided on the clamping seat 21, and the second positioning member 50 can abut against the first positioning member 40 to limit the movement of the movable clamping jaw 23 on the clamping seat 21. The driving member 60 is disposed on the clamping seat 21 and is used to drive the second positioning member 50 to move so as to release the abutment between the second positioning member 50 and the first positioning member 40 .

[0040] It is understandable that when it is necessary to clamp the workpiece, the driving member 60 is operated to release the abutment between the second positioning member 50 and the first positioning member 40, and the movable jaw 23 can move freely. After placing the workpiece between the movable jaw 23 and the static jaw, and pushing the movable jaw 23 to move to the position of pressing the workpiece, the operation of the driving member 60 is released, and the second positioning member 50 and the first positioning member 40 can return to the abutment state, thereby restricting the movable jaw 23 from moving, and the workpiece is clamped on the clamping seat 21. The entire operation is simple, the movable jaw 23 can be moved to the position of completely pressing the workpiece, and can also be quickly limited, which not only has a wide range of applications, but also has high work efficiency and good clamping effect.

[0041] Secondly, the base 10 is provided with walking wheels 11, so that the welding fixture can be moved to different equipment and workshops for use, and can adapt to more application scenarios.

[0042] Specifically, the running wheel 11 is a wheel mounted on the base 10 through a bearing. The wheel adopts a load-bearing hub, and the rubber of the wheel adopts wear-resistant rubber. Of course, in other embodiments, the running wheel 11 can also be connected to a motor, and the motor drives the running wheel 11 to rotate, thereby driving the welding fixture to move.

[0043] like Figures 3 - 5 As shown, the driving member 60 includes a movable rod 61, a button member 62 and an elastic member 63. The movable rod 61 is arranged on the clamp seat 21 along the height direction and can move up and down relative to the clamp seat 21. The upper end of the movable rod 61 passes through the clamp seat 21, and the button member 62 is connected to the upper end of the movable rod 61. That is, the button member 62 is located outside the clamp seat 21. The elastic member 63 is arranged in the installation cavity 211 and is connected to the movable rod 61.

[0044] Further, an elastic member 63 is provided at the lower part of the movable rod 61. When the button is pressed to move the movable rod 61 downward, the elastic member 63 can be compressed. When the external force on the button disappears, the elastic member 63 can drive the movable rod to reset.

[0045] Exemplarily, the elastic member 63 can be a spring, rubber, elastic sheet, etc. In this embodiment, a spring is adopted, which has a longer compression stroke and can meet the longer moving stroke of the movable rod 61. The button member 62 is a long strip-shaped block structure, which is convenient to press.

[0046] Further, along the height direction of the clamping seat 21, the second positioning member 50 is movably provided on the clamping seat 21. Specifically, the driving member 60 drives the second positioning member 50 to move in the height direction of the clamping seat 21, thereby releasing the abutment between the second positioning member 50 and the first positioning member 40.

[0047] In this embodiment, the second positioning member 50 is connected to the movable rod 61. When the movable rod 61 moves downward, the second positioning member 50 and the first positioning member 40 move away from each other. When the movable rod 61 moves upward, the second positioning member 50 and the first positioning member 40 move closer to each other and abut.

[0048] That is, by pressing the button member 62, the movable rod 61 can be driven to move, thereby controlling the abutment / separation between the second positioning member 50 and the first positioning member 40, and then locking / unlocking the movable jaw 23. The operation is simple and fast. And after releasing the pressing on the button member 62, the movable rod 61 can automatically reset through the elastic member 63 without manual control of reset, and the operation is more convenient.

[0049] Secondly, the moving direction of the movable jaw 23 is the length direction of the clamping seat 21, and the moving direction of the second positioning member 50 is the height direction of the clamping seat 21, which is not easy to hinder the movement of the movable jaw 23 and can make more full use of the space of the clamping seat 21.

[0050] Further, an installation cavity 211 is provided in the clamping seat 21. An opening 212 is provided on one side of the clamping seat 21 close to the jaw, and the opening 212 is communicated with the installation cavity 211. A connecting portion 231 is provided on one side of the movable jaw 23 close to the clamping seat 21. The connecting portion 231 is slidably disposed through the opening 212 and partially extends into the installation cavity 211. By using the cooperation of the connecting portion 231 and the opening 212, the movable jaw 23 is guided so that the movable jaw 23 can move along the track of the opening 212 to avoid position deviation.

[0051] Exemplarily, the number of the connecting portion 231 and the opening 212 corresponds to each other, and can be set to one or more. In this embodiment, two are provided, and along the height direction of the clamping seat 21, the two connecting portions 231 are distributed up and down, and the guiding is more stable.

[0052] Preferably, a roller 232 is provided at one end of the connecting portion 231 that penetrates into the installation cavity 211, and a sliding groove 214 that cooperates with the roller 232 is provided in the installation cavity 211. This makes the movement of the moving jaw 23 smoother.

[0053] Specifically, a mounting plate 213 is fixedly connected in the installation cavity 211. The upper part of the mounting plate 213 is fixedly connected to the upper inner wall of the installation cavity 211 and extends downward as a whole to the roller 232. The mounting plate 213 has a length, and its length extends along the length direction of the clamping seat 21. The sliding groove 214 is formed on the mounting plate 213 and also extends along the length direction of the clamping seat 21. This ensures that during the movement of the moving jaw 23, the roller 232 always cooperates with the sliding groove 214.

[0054] Furthermore, both the first positioning member 40 and the second positioning member 50 are provided in the installation cavity 211. This makes the appearance of the clamping mechanism 20 more aesthetically pleasing.

[0055] Furthermore, the first positioning member 40 is a first convex tooth 41 provided on the lower surface of the connecting portion 231. The number of the first convex teeth 41 is set to be multiple, and they are spaced apart along the length direction of the clamping seat 21 (i.e., the movement direction of the moving jaw 23).

[0056] Still further, the second positioning member 50 includes an extension rod 51 and a second convex tooth 52. The extension rod 51 extends from the movable rod 61 to below the first convex tooth 41, and the second convex tooth 52 is provided on the upper surface of the extension rod 51. The positioning of the moving jaw 23 is achieved by the mutual engagement of the first convex tooth 41 and the second convex tooth 52. The meshing between the convex teeth has strong adaptability, and it is not easy to have a situation where alignment cannot be achieved and the position of the moving jaw 23 needs to be adjusted. This ensures that the moving jaw 23 can completely press the workpiece and is limited in the position where the workpiece is completely pressed, improving the clamping effect.

[0057] Specifically, the extension rod 51 is set as a long rod, and the extension rod 51 is arranged along the length direction of the clamping seat 21. The length and position of the extension rod 51 correspond to the groove 82. The number of the second convex teeth 52 is set to be multiple, and they are spaced apart along the length direction of the extension rod 51 on the upper surface of the extension rod 51.

[0058] Therefore, the second convex teeth 52 on the extension rod 51 cover the entire movement trajectory of the moving jaw 23. When the moving jaw 23 moves to any position, the first convex tooth 41 on its connecting portion 231 can engage with the second convex tooth 52, thereby positioning the position of the moving jaw 23.

[0059] Preferably, clamping plates 70 are respectively hinged on the fixed clamping jaw 22 and the movable clamping jaw 23. The clamping plates 70 are arranged at one ends of the fixed clamping jaw 22 and the movable clamping jaw 23 away from the clamping seat 21. And a coil spring is arranged at the hinged part of the clamping plates 70. When the fixed clamping jaw 22 and the movable clamping jaw need to clamp a workpiece, the clamping plates 70 will turn to the side away from the clamping seat 21, and then can turn back under the action of the coil spring and apply pressure to the workpiece to clamp the workpiece.

[0060] In one embodiment, a counterweight 81 is arranged on the base 10. The counterweight 81 is used to increase the weight of the base 10, lower the center of gravity of the whole fixture, and avoid the possibility of the fixture tipping over during use. Secondly, the counterweight 81 increases the weight of the base 10, and also makes the fixture not easy to move during use. While enabling the fixture to transfer positions, it also ensures the stable state of the fixture during work.

[0061] Preferably, the counterweight 81 can be made of cast iron blocks, cement blocks, etc., as long as it can meet the counterweight requirements.

[0062] Further, the counterweight 81 is detachably connected to the base 10. That is, when the fixture needs to be moved, the counterweight 81 can be removed first to reduce the weight of the welding fixture and facilitate pushing. After moving to the place, the counterweight 81 is reinstalled on the base 10 to prevent the welding fixture from moving.

[0063] As Figure 6 shown, a groove 82 is arranged on the base 10, and the counterweight 81 is placed in the groove 82. The counterweight 81 is limited by the groove 82 to prevent it from falling out. The counterweight 81 can be divided into two left and right parts, and handles 83 are respectively arranged on the two counterweights 81 to facilitate the taking and placing of the counterweight 81.

[0064] In other embodiments, the counterweight 81 can also be fixedly connected to the base 10. The fixed connection can be realized by means of screws, welding, etc.

[0065] Further, as Figure 1 shown, the adjusting mechanism 30 includes a first hydraulic rod 31 and a second hydraulic rod 32. The second hydraulic rod 32 is connected to the clamping mechanism 20, and the first hydraulic rod 31 is connected to the second hydraulic rod 32. The first hydraulic rod 31 is arranged on the base 10 in the height direction, and the second hydraulic rod 32 is arranged in the horizontal direction. Furthermore, the height, distance, etc. of the clamping mechanism 20 relative to the base 10 can be adjusted by using the first hydraulic rod 31 and the second hydraulic rod 32 to meet different requirements during processing.

[0066] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0067] The embodiments described above merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A welding fixture, characterized in that: include: A base (10), wherein the base (10) is provided with running wheels (11) for driving the base (10) to move; A clamping mechanism (20), the clamping mechanism (20) comprising a clamping seat (21), a fixed clamping jaw (22), and a movable clamping jaw (23); the fixed clamping jaw (22) is fixed on the clamping seat (21), and the movable clamping jaw (23) is movably arranged on the clamping seat (21) along the length direction of the clamping seat (21); An adjusting mechanism (30) is disposed on the base (10) and connected to the clamping mechanism (20), and is used to adjust the relative position of the clamping mechanism (20) and the base (10); A first positioning member (40) is disposed on the movable clamping jaw (23); A second positioning member (50) is disposed on the clamping seat (21), and the second positioning member (50) is capable of abutting against the first positioning member (40) to limit the movement of the movable clamping jaw (23) on the clamping seat (21); The driving member (60) is arranged on the clamping seat (21) and is used to drive the second positioning member (50) to move so as to release the abutment between the second positioning member (50) and the first positioning member (40).

2. The welding fixture according to claim 1, characterized in that: The second positioning member (50) is movably arranged on the clamping seat (21) along the height direction of the clamping seat (21); and the driving member (60) drives the second positioning member (50) to move in the height direction of the clamping seat (21).

3. The welding fixture according to claim 2, characterized in that: The driving member (60) comprises a movable rod (61), a button member (62) and an elastic member (63); the movable rod (61) is movably disposed on the clamping seat (21) up and down, and the upper end thereof passes through the clamping seat (21); the button member (62) is connected to the upper end of the movable rod (61); and the elastic member (63) is connected to the movable rod (61).

4. The welding fixture according to claim 3, characterized in that: The second positioning member (50) is connected to the movable rod (61); when the movable rod (61) moves downward, the second positioning member (50) and the first positioning member (40) move away from each other; when the movable rod (61) moves upward, the second positioning member (50) and the first positioning member (40) move closer to each other and abut against each other.

5. The welding fixture according to claim 3, characterized in that: The clamp seat (21) is provided with a mounting cavity (211), and a slot (212) is provided on a side of the clamp seat (21) close to the clamping jaw, and the slot (212) is communicated with the mounting cavity (211); the movable clamping jaw (23) is provided with a connecting portion (231), and the connecting portion (231) is slidably inserted into the slot (212) and partially extends into the mounting cavity (211), and the first positioning member (40) and the second positioning member (50) are both arranged in the mounting cavity (211).

6. The welding fixture according to claim 5, characterized in that: The first positioning member (40) is a first protruding tooth (41) provided on the lower surface of the connecting portion (231); the second positioning member (50) comprises an extension rod (51) and a second protruding tooth (52); the extension rod (51) extends from the movable rod (61) to below the first protruding tooth (41); and the second protruding tooth (52) is provided on the upper surface of the extension rod (51).

7. The welding fixture according to claim 5, characterized in that: A roller (232) is provided on one end of the connecting portion (231) that penetrates into the installation cavity (211), and a slide groove (214) that matches the roller (232) is provided in the installation cavity (211); the slide groove (214) extends along the length direction of the clamping seat (21).

8. The welding fixture according to claim 5, characterized in that: The connecting parts (231) are provided in two numbers, and along the height direction of the clamping seat (21), the two connecting parts (231) are distributed up and down.

9. The welding fixture according to claim 1, characterized in that: A clamping plate (70) is hingedly connected to the fixed clamping jaw (22) and the movable clamping jaw (23), respectively. The clamping plate (70) is arranged at one end of the fixed clamping jaw (22) and the movable clamping jaw (23) away from the clamping seat (21).

10. The welding fixture according to claim 1, characterized in that: A counterweight (81) is provided on the base (10), and the counterweight (81) is fixedly / detachably connected to the base (10).

Images