Projection welding fixture

Abstract

The utility model discloses a projection welding fixture which comprises a base and a bearing plate, a supporting column is fixedly arranged on the base, a supporting plate is fixedly arranged on the top of the bearing plate, the bearing plate is arranged on the supporting plate, and a plate is placed on the bearing plate. A plurality of limiting columns are fixedly arranged on the upper surface of the bearing plate and matched with a plurality of holes formed in a plate in a penetrating mode, and projection welding nuts placed on the plate are matched with the tops of the limiting columns in an inserted mode. The positioning device has the advantages that the plate is positioned on the bearing plate through the butt joint of the limiting column and the hole, and the projection welding nut is in butt joint with the top of the limiting column, so that the projection welding nut can be quickly and accurately placed on the plate.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a projection welding fixture. Background Technology

[0002] Projection welding is a high-efficiency welding method that can perform multi-point welding simultaneously. Projection welding is a resistance welding method in which one or more protrusions are pre-processed on the mating surface of one workpiece, so that they come into contact with the surface of another workpiece and are heated by electricity, and then collapsed, so that these contact points form weld joints.

[0003] By welding projection nuts (nuts with projections) onto thin plates, assembly only requires tightening bolts, thus improving assembly efficiency.

[0004] When welding projection nuts onto thin plates, the projection nuts need to align with the holes on the thin plates. This requires workers to make adjustments as needed, which is not a quick process.

[0005] In view of this, we propose a projection welding fixture. Utility Model Content

[0006] The purpose of this invention is to provide a projection welding fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a projection welding fixture, comprising a base and a support plate, wherein a support column is fixedly disposed on the base, a support plate is fixedly disposed on the top of the support plate, the support plate is disposed on the support plate, and a plate is placed on the support plate;

[0008] Multiple limiting posts are fixedly installed on the upper surface of the support plate. The multiple limiting posts are fitted with multiple holes opened on the plate. The projection welded nuts placed on the plate are inserted and fitted with the top of the limiting posts.

[0009] Preferably, the top of the limiting post is located inside the projection weld nut.

[0010] Preferably, the end of the support plate is provided with a clamping structure, the clamping structure includes a fixing block and a threaded rod, a bearing is connected in the through groove of the fixing block, the threaded rod is rotatably connected to the fixing block through the bearing, a rotating handle is fixedly provided at the end of the threaded rod, and a clamping plate is threadedly sleeved on the two threaded sections of the threaded rod, and the two clamping plates are clamped and engaged with one side of the front and rear ends of the support plate.

[0011] Preferably, the upper surface of the support plate is provided with a slot, and the lower surface of the support plate is fixedly provided with an insert, which is inserted into the slot.

[0012] Preferably, a limiting groove is provided on one side of the front and rear ends of the support plate, and a limiting block is fixedly provided on the opposite side of the two clamping plates, with the limiting block and the limiting groove being inserted and engaged.

[0013] Preferably, a guide strip is fixedly provided at one end of the fixing block, and the two clamping plates are slotted at one end to slide in cooperation with the guide strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting a support plate and a limiting post, has the advantages of positioning the plate on the support plate by connecting the limiting post with the hole, and quickly and accurately placing the projection weld nut on the plate by connecting the projection weld nut with the top of the limiting post. This solves the problem that workers need to make corresponding adjustments when aligning the projection weld nut with the hole on the thin plate, which is not fast enough.

[0016] 2. This utility model, by setting a fixing block, bearing, positive and negative threaded screws, handle, clamping plate and guide bar, has the advantages of selecting the appropriate support plate according to different plates, positioning the support plate, and maintaining the stability of the support plate. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the plate handling structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the support plate placement and removal structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the support plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping structure connection of this utility model.

[0022] In the diagram: 100, base; 200, support column; 300, support plate; 400, plate; 500, clamping structure; 600, support plate;

[0023] 301. Limiting post; 302. Insert bar; 303. Limiting groove;

[0024] 401. Hole;

[0025] 501. Fixing block; 502. Bearing; 503. Threaded screw (positive and negative threads); 504. Rotary handle; 505. Clamping plate; 506. Limiting block; 507. Guide bar;

[0026] 601, Slot. Detailed Implementation

[0027] 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.

[0028] Two embodiments provided by this utility model:

[0029] Example 1

[0030] Please see Figures 1 to 2 A projection welding fixture includes a base 100 and a support plate 300, with the base 100 mounted on a welding machine tool. A support column 200 is fixedly mounted on the base 100, and a support plate 600 is fixedly mounted on the top of the support plate 300. The support plate 300 is mounted on the support plate 600, and a plate 400 is placed on the support plate 300. The support plate 300 is selected according to the size of the plate 400 and the number and position of the holes 401.

[0031] Multiple limiting posts 301 are fixedly installed on the upper surface of the support plate 300. The plate 400 is placed on the support plate 300, and the multiple limiting posts 301 are fitted with multiple holes 401 opened on the plate 400. Then, projection welding nuts are placed, and the top of each projection welding nut is placed on the plate 400. The projection welding nut placed on the plate 400 is inserted and fitted with the top of the limiting post 301. The top of the limiting post 301 is located inside the projection welding nut. When the welding head on the welding machine moves down to weld the projection welding nut, the top of the limiting post 301 will not obstruct the welding head from welding the projection welding nut.

[0032] This utility model, by setting a support plate 300 and a limiting post 301, has the advantages of positioning the plate 400 on the support plate 300 by the docking of the limiting post 301 with the hole 401, and the docking of the projection weld nut with the top of the limiting post 301, which allows the projection weld nut to be quickly and accurately placed on the plate 400. This solves the problem that workers need to make corresponding adjustments when aligning the projection weld nut with the round hole on the thin plate, which is not fast enough.

[0033] Example 2

[0034] Based on the technical content of Embodiment 1 above, another embodiment is proposed. Please refer to [link / reference]. Figures 2 to 5The support plate 600 has a clamping structure 500 at its end, which includes a fixing block 501 and a threaded rod 503. A bearing 502 is connected to the through slot of the fixing block 501. The threaded rod 503 is rotatably connected to the fixing block 501 through the bearing 502. A handle 504 is fixedly installed at the end of the threaded rod 503. Clamping plates 505 are threadedly fitted onto the two threaded sections of the threaded rod 503. A guide strip 507 is fixedly installed at one end of the fixing block 501. The two clamping plates 505 have slots at one end that slide in cooperation with the guide strips 507. When the two clamping plates 505 move, they can move along the guide strips 507. The square guide strips 507 and the slots at one end of the clamping plates 505 ensure that the clamping plates 505 move stably along the threaded rods 503. The two clamping plates 505 are clamped to one side of the front and rear ends of the support plate 300. When the operator rotates the handle 504, the forward and reverse threaded screws 503 rotate accordingly, thereby causing the two clamping plates 505 to move relative to each other or away from each other, so as to replace the support plate 300 and position the replaced support plate 300.

[0035] This utility model, by setting a fixing block 501, bearing 502, positive and negative threaded screws 503, rotating handle 504, clamping plate 505 and guide bar 507, has the advantages of selecting a suitable support plate 300 according to different plate parts 400, positioning the support plate 300, and maintaining the stability of the support plate 300.

[0036] The upper surface of the support plate 600 has a slot 601, and the lower surface of the support plate 300 has a strip 302 fixedly installed. The strip 302 is inserted into the slot 601. When installing the support plate 300, the connection between the strip 302 and the slot 601 ensures that the support plate 300 is accurately aligned with the support plate 600.

[0037] Limiting grooves 303 are respectively provided on one side of the front and rear ends of the support plate 300, and limiting blocks 506 are respectively fixed on the opposite side of the two clamping plates 505. The limiting blocks 506 are inserted and engaged with the limiting grooves 303. When clamping the support plate 300, the support plate 300 is further positioned by the insertion of the limiting blocks 506 and the limiting grooves 303.

[0038] Working principle: The operator selects the appropriate support plate 300 according to the different plate parts 400, places the corresponding support plate 300 on the support plate 600, and inserts the corresponding insert strip 302 into the corresponding slot 601. The operator rotates the handle 504, causing the positive and negative threaded screw 503 to rotate, which drives the two clamping plates 505 to move relative to each other. The clamping plates 505 move along the guide strip 507 until the two clamping plates 505 clamp the support plate 300, and the limiting block 506 is inserted into the corresponding limiting groove 303. The plate part 400 is placed on the support plate 300, and multiple limiting posts 301 are sequentially inserted into the multiple holes 401 opened on the plate part 400. Then, projection weld nuts are placed, with the top of each projection weld nut corresponding to the limiting post 301 placed on the plate part 400. The welding head on the welding machine moves down to weld the projection weld nuts. After welding, the welding head on the welding machine moves up, and the operator removes the plate part 400 with the projection weld nuts welded on.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A projection welding fixture, characterized in that: It includes a base (100) and a support plate (300). A support column (200) is provided on the base (100). A support plate (600) is provided on the top of the support plate (300). The support plate (300) is placed on the support plate (600). A plate (400) is placed on the support plate (300). Multiple limiting posts (301) are fixedly provided on the upper surface of the support plate (300). The multiple limiting posts (301) are connected to multiple holes (401) opened on the plate (400). The projection welded nut placed on the plate (400) is inserted into the top of the limiting post (301).

2. The projection welding fixture according to claim 1, characterized in that: The top of the limiting post (301) is located inside the projection weld nut.

3. The projection welding fixture according to claim 1, characterized in that: The support plate (600) is provided with a clamping structure (500) at its end. The clamping structure (500) includes a fixing block (501) and a threaded rod (503). A bearing (502) is connected in the through groove of the fixing block (501). The threaded rod (503) is connected to the fixing block (501) through the bearing (502). A swivel (504) is provided at the end of the threaded rod (503). The two threaded sections of the threaded rod (503) are respectively threaded with clamping plates (505). The two clamping plates (505) are clamped and engaged with one side of the front and rear ends of the support plate (300).

4. A projection welding fixture according to claim 3, characterized in that: The upper surface of the support plate (600) is provided with a slot (601), and the lower surface of the support plate (300) is provided with a strip (302), which is inserted into the slot (601).

5. A projection welding fixture according to claim 4, characterized in that: The support plate (300) has a limiting groove (303) on one side of its front and rear ends, and the two clamping plates (505) are respectively provided with limiting blocks (506) on opposite sides. The limiting blocks (506) are inserted into the limiting grooves (303).

6. A projection welding fixture according to claim 3, characterized in that: One end of the fixing block (501) is provided with a guide strip (507), and the two clamping plates (505) have slots at one end that slide in cooperation with the guide strip (507).

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