Jig for welding

Abstract

The utility model discloses a welding jig which comprises a base body, an angle adjusting device and a pressing device, the angle adjusting device comprises a base plate, a supporting plate, a locking screw and two oppositely-arranged wall plates, the base plate is connected with the base body and the wall plates, the supporting plate is located between the two wall plates, the bottom end of the supporting plate is rotationally connected with the two wall plates, and the locking screw is connected with the pressing device. An L-shaped limiting block is arranged on the supporting plate, the L-shaped limiting block is arranged close to the bottom end of the supporting plate, an inserting groove is defined by the L-shaped limiting block and the supporting plate, an arc-shaped groove and a plurality of scale marks arranged along the arc-shaped groove are formed in the wall plate, and a locking screw penetrates through the arc-shaped groove to be connected with the supporting plate; the pressing device comprises a fixed support, a movable support, a driving part and an abutting block, the fixed support is fixedly connected to the seat body, the movable support is slidably arranged on the fixed support, the driving part is connected with the movable support and the fixed support, and the abutting block is arranged on the movable support. According to the welding jig, stepless adjustment of the inclination angle can be achieved, and the trial and error cost can be reduced.

Description

Technical Field

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

[0002] In the fields of consumer electronics, automotive electronics, etc., there is a demand for welding small parts, and welding jigs are needed to weld small parts. During the welding process, the welding direction generally needs to be perpendicular to the welding surface. Therefore, for some welding jigs that have multiple welding positions in the same direction and cannot be set with avoidance positions, they need to be used in conjunction with angle auxiliary jigs. The welding jig is placed on the angle auxiliary jig, and the angle auxiliary jig provides a tilt angle for the welding jig, so that the welding position of the parts loaded on the welding jig is exposed so that the welding gun can weld the welding position.

[0003] However, it is difficult to determine the inclination angle of the angle auxiliary fixture, and a large number of angle auxiliary fixtures with different inclination angles need to be produced for verification, which undoubtedly increases the cost. Utility Model Content

[0004] The existing technical problem of the utility model is to provide a welding jig with an adjustable tilt angle.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a welding jig, comprising:

[0006] seat body;

[0007] An angle adjustment device, the angle adjustment device includes a base plate, a support plate, a locking screw and two oppositely arranged wall plates, the base plate connects the seat body and the wall plate, the support plate is located between the two wall plates, the bottom end of the support plate is rotatably connected to the two wall plates, an L-shaped limit block is provided on the support plate, the L-shaped limit block is arranged near the bottom end of the support plate and is surrounded by the support plate to form a slot for limiting the welding jig, the wall plate is provided with an arc groove and a plurality of scale lines arranged along the arc groove, the locking screw passes through the arc groove and is connected to the support plate;

[0008] The clamping device includes a fixed bracket, a movable bracket, a driving member and a pressing block. The fixed bracket is fixedly connected to the base body, the movable bracket can be slidably arranged on the fixed bracket, the driving member connects the movable bracket and the fixed bracket, and the pressing block is arranged on the movable bracket. The pressing block is used to press the welding jig with one end inserted into the slot.

[0009] In one embodiment, the arc-shaped groove is in a semicircular ring shape.

[0010] In one embodiment, the locking screws are respectively connected to both sides of the support plate.

[0011] In one embodiment, the support plate has two limiting strips arranged opposite to each other, and the L-shaped limiting block is located between the two limiting strips.

[0012] In one embodiment, a guide surface is provided at one end of the limiting strip away from the L-shaped limiting block, and the guide surface is located on a side where the two limiting strips are close to each other.

[0013] In one embodiment, the guide surface is an inclined surface or a curved surface.

[0014] In one embodiment, a straight hole is provided on the base plate, and the base body has a mounting screw hole corresponding to the straight hole, and also includes a mounting screw passing through the straight hole and connected to the mounting screw hole, and the distance between the angle adjustment device and the clamping device is adjustable.

[0015] In one embodiment, the movable bracket is connected to the fixed bracket via a guide rail slider assembly.

[0016] In one embodiment, the pressing block is slidably arranged relative to the movable bracket, and the pressing device further includes an elastic member, which connects the movable bracket and the pressing block.

[0017] In one embodiment, the pressing block includes a sliding portion and a pressing portion connected to each other, and an edge of the movable bracket is provided with a convex groove that cooperates with the sliding portion.

[0018] The beneficial effects of the present invention are:

[0019] This welding jig has a novel structure, and the inclination angle of the support plate can be adjusted steplessly, so that the welding jig loaded thereon can quickly find the appropriate welding angle, thereby facilitating the manufacture of subsequent angle auxiliary jigs. There is no need to produce a large number of angle auxiliary jigs with different inclination angles, which greatly reduces the trial and error cost.

[0020] The pressing device can press the welding jig with one end inserted into the slot, thereby improving the accuracy of the tilt angle determined by the welding jig, and at the same time, can ensure the welding effect and improve the problem of cold welding.

[0021] For small-batch welding, the present welding jig can be used directly as an angle auxiliary jig; for large-batch welding, additional angle auxiliary jigs can be manufactured according to the inclination angle determined by the present welding jig. It can be seen that the present welding jig has the advantages of high flexibility and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of the welding jig according to the first embodiment of the present invention after the welding jig is mounted;

[0024] Figure 2 This is a schematic structural diagram of the angle adjustment device in the welding jig according to the first embodiment of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the clamping device in the welding jig according to the first embodiment of the present invention.

[0026] Description of Figure Numbers:

[0027] 1. Base body;

[0028] 2. Angle adjustment device; 21. Bottom plate; 211. Slotted hole; 22. Support plate; 23. Locking screw; 24. Wall plate; 241. Arc groove; 242. Scale line; 25. L-shaped limit block; 26. Limit strip; 261. Guide surface;

[0029] 3. Clamping device; 31. Fixed bracket; 32. Movable bracket; 321. Stop block; 322. Convex groove; 33. Driving member; 34. Pressing block; 341. Sliding portion; 342. Pressing portion; 343. Limiting portion; 35. Guide rail slider assembly;

[0030] 4. Welding jig. DETAILED DESCRIPTION

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0035] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0037] Example 1

[0038] Please refer to Figures 1 to 3, Embodiment 1 of the present utility model is: a welding jig, comprising a base body 1, an angle adjustment device 2 and a pressing device 3, the angle adjustment device 2 comprising a bottom plate 21, a support plate 22, a locking screw 23 and two oppositely arranged wall plates 24, the bottom plate 21 connects the base body 1 and the wall plates 24, the support plate 22 is located between the two wall plates 24, the bottom end of the support plate 22 is rotatably connected to the two wall plates 24, an L-shaped limit block 25 is provided on the support plate 22, the L-shaped limit block 25 is arranged near the bottom end of the support plate 22 and enclosed with the support plate 22 to form a slot for limiting the welding jig 4, the wall plate 24 is provided with an arc Groove 241 and multiple scale lines 242 arranged along the arc groove 241, the locking screw 23 passes through the arc groove 241 to connect the support plate 22; the clamping device 3 includes a fixed bracket 31, a movable bracket 32, a driving member 33 and a pressing block 34, the fixed bracket 31 is fixedly connected to the base body 1, the movable bracket 32 is slidably arranged on the fixed bracket 31, the driving member 33 connects the movable bracket 32 and the fixed bracket 31, the pressing block 34 is arranged on the movable bracket 32, the pressing block 34 is used to press the welding jig 4 with one end inserted into the slot, and the welding jig 4 is loaded with parts to be welded.

[0039] The L-shaped limit block 25 includes a first plate and a second plate connected vertically, the end of the first plate away from the second plate is fixedly connected to the support plate 22, the second plate is parallel to the support plate 22, and the second plate, the first plate and a partial area of the support plate 22 together form the slot.

[0040] The curvature of the arc-shaped groove 241 can be set as needed. In this embodiment, the curvature of the arc-shaped groove 241 is π, that is, the arc-shaped groove 241 is in a semicircular ring shape.

[0041] In order to improve the structural stability of the welding jig, optionally, the locking screws 23 are respectively connected to both sides of the support plate 22.

[0042] The support plate 22 has two limiting strips 26 arranged opposite to each other, and the L-shaped limiting block 25 is located between the two limiting strips 26. The setting of the limiting strip 26 can limit the welding jig 4 placed on the support member, thereby improving the offset phenomenon of the welding jig 4 on the support plate 22.

[0043] In order to allow the user to insert the welding jig 4 into the slot more smoothly, it is preferred that a guide surface 261 is provided at one end of the limit bar 26 away from the L-shaped limit block 25, and the guide surface 261 is located on the side where the two limit bars 26 are close to each other, and the guide surface 261 is a slope or an arc surface.

[0044] It is easy to understand that in actual use, the welding jig 4 carried by the support plate 22 is not unique. As long as the welding jig 4 can be inserted into the slot, it can be used with this welding jig, which means that this welding jig has strong versatility.

[0045] In order to enable the pressing block 34 to better press the welding jig 4, a straight hole 211 is provided on the base plate 21, and the base body 1 has a mounting screw hole corresponding to the straight hole 211, and also includes a mounting screw passing through the straight hole 211 and connected to the mounting screw hole. The length direction of the straight hole 211 is toward the clamping device 3, and the distance between the angle adjustment device 2 and the clamping device 3 is adjustable.

[0046] The movable bracket 32 is connected to the fixed bracket 31 via a guide rail slider assembly 35, which ensures that the movable bracket 32 can slide smoothly.

[0047] As a preferred embodiment, the pressing block 34 is slidably arranged relative to the movable bracket 32, and the clamping device 3 also includes an elastic member (not shown in the figure), which connects the movable bracket 32 and the pressing block 34. The elastic member can be a rubber block, a spring, a reed, etc.

[0048] In detail, the pressing block 34 includes a connected sliding portion 341 and a pressing portion 342, the top of the sliding portion 341 is provided with a limiting portion 343, the movable bracket 32 has a stop block 321, the stop block 321 is located above the limiting portion 343, the elastic member connects the stop block 321 and the sliding portion 341, the edge of the movable bracket 32 is provided with a convex groove 322 that cooperates with the sliding portion 341, the convex groove 322 is connected to the peripheral wall of the movable bracket 32, and the convex groove 322 can also be considered as a special notch.

[0049] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A welding jig, characterized in that: include seat body; An angle adjustment device, the angle adjustment device includes a base plate, a support plate, a locking screw and two oppositely arranged wall plates, the base plate connects the seat body and the wall plate, the support plate is located between the two wall plates, the bottom end of the support plate is rotatably connected to the two wall plates, an L-shaped limit block is provided on the support plate, the L-shaped limit block is arranged near the bottom end of the support plate and is surrounded by the support plate to form a slot for limiting the welding jig, the wall plate is provided with an arc groove and a plurality of scale lines arranged along the arc groove, the locking screw passes through the arc groove and is connected to the support plate; The clamping device includes a fixed bracket, a movable bracket, a driving member and a pressing block. The fixed bracket is fixedly connected to the base body, the movable bracket can be slidably arranged on the fixed bracket, the driving member connects the movable bracket and the fixed bracket, and the pressing block is arranged on the movable bracket. The pressing block is used to press the welding jig with one end inserted into the slot.

2. The welding jig according to claim 1, wherein: The arc groove is in a semicircular ring shape.

3. The welding jig according to claim 1, wherein: Both sides of the support plate are respectively connected with the locking screws.

4. The welding jig according to claim 1, wherein: The support plate has two limiting strips arranged opposite to each other, and the L-shaped limiting block is located between the two limiting strips.

5. The welding jig according to claim 4, characterized in that: A guide surface is provided on one end of the limiting strip away from the L-shaped limiting block, and the guide surface is located on a side where the two limiting strips are close to each other.

6. The welding jig according to claim 5, characterized in that: The guiding surface is an inclined surface or a curved surface.

7. The welding jig according to claim 1, wherein: The base plate is provided with a straight hole, the base body has a mounting screw hole corresponding to the straight hole, and also includes a mounting screw passing through the straight hole and connected to the mounting screw hole. The distance between the angle adjustment device and the clamping device is adjustable.

8. The welding jig according to claim 1, wherein: The movable bracket is connected to the fixed bracket via a guide rail slider assembly.

9. The welding jig according to claim 1, wherein: The pressing block is slidably arranged relative to the movable bracket, and the pressing device further includes an elastic member, which connects the movable bracket and the pressing block.

10. The welding jig according to claim 9, wherein: The pressing block comprises a sliding portion and a pressing portion which are connected to each other, and an edge of the movable bracket is provided with a convex groove which cooperates with the sliding portion.

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