CN211277158U

CN211277158U - Flexible welding fixture

Info

Publication number: CN211277158U
Application number: CN201921863757.8U
Authority: CN
Inventors: 刘栋; 翁涛; 常娜
Original assignee: Huayu Automotive Body Components Technology Shanghai Co Ltd
Current assignee: Huayu Automotive Body Components Technology Shanghai Co Ltd; Huayu Automotive Body Components Technology Wuhan Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-18
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a flexible welding jig, including working plate and two clamp plates, the clamp plate is located the top of working plate, the spout has been seted up at the top of working plate, the bottom of clamp plate is equipped with the sliding block, the working plate passes through spout and sliding block sliding connection with the clamp plate, the both sides that the clamp plate is on a parallel with the spout are equipped with the fixed block, peg graft there is the locating lever in the inside of fixed block, a plurality of locating holes that are transverse arrangement have all been seted up to the both sides that the top of working plate is located the spout, the internal diameter of locating hole and the external diameter looks adaptation of locating lever, the spread groove has been seted up at the top of clamp plate, the inner wall of spread groove is fixed. The utility model discloses when the shape and the size of work piece change, through adjusting the distance between two clamp plates, also can press from both sides tightly the work piece, guarantee to be both can stabilize the centre gripping to the difference by the welding workpiece, stabilize the location to the work piece, also improved the precision in the welding.

Description

Flexible welding fixture

Technical Field

The utility model relates to a welding jig, in particular to flexible welding jig.

Background

Welding is a manufacturing process and technology for joining metal or other thermoplastic materials such as plastics in a heating, high-temperature or high-pressure mode, because welding may bring danger to operators, when welding workpieces, a clamp is needed to position the workpieces to be welded, a flexible clamp means that after the shape and the size of the workpieces are changed to a certain extent, the clamp can adapt to the change and continue to be used, when welding is performed, the workpieces to be welded are various, the existing welding clamps are mostly fixed for use, the distance between the welding clamps cannot be adjusted at will, the adaptability of the workpieces to be welded is not perfect, the purposes of adapting and well positioning various workpieces to be welded cannot be achieved, and the welding precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a flexible welding jig is provided to overcome not enough among the above-mentioned prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a flexible welding fixture comprises a working plate and two clamping plates, wherein the clamping plates are positioned at the top of the working plate, the top of the working plate is provided with a sliding groove, the bottom of the clamping plates is provided with a sliding block, the working plate and the clamping plates are in sliding connection through the sliding groove and the sliding block, the clamping plates are provided with fixed blocks parallel to two sides of the sliding groove, positioning rods are inserted into the fixed blocks, the top of the working plate is positioned at two sides of the sliding groove and are respectively provided with a plurality of positioning holes which are transversely arranged, the inner diameters of the positioning holes are matched with the outer diameters of the positioning rods, the top of the clamping plates is provided with a connecting groove, the inner wall of the connecting groove is fixedly provided with a positioning ring, the inside of the connecting groove is provided with a threaded rod extending to the outside of the connecting groove, one end of the, the threaded rod is connected with the spread groove through a positioning ring and a baffle in a rotating mode, the threaded rod is located the outer wall threaded connection of the outer end of the spread groove is located the movable plate above the clamping plate.

The utility model has the advantages that: when being fixed a position by welding work piece, carry out location fit through the inside locating lever of fixed block and locating hole, can fix the position of clamp plate, when the clamp plate on the working plate is slided to needs, extract the locating lever inside the locating hole, slide the clamp plate, and then adjusted the distance between two clamp plates, the work piece is placed at the top of clamp plate, make movable plate and clamp plate realize pressing from both sides tightly the work piece through rotating the threaded rod, when the shape and the size of work piece change, through adjusting the distance between two clamp plates, also can press from both sides tightly the work piece, can both come with the big or small adaptation of work piece through adjusting the distance between two clamp plates to the work piece of equidimension not, guarantee to the difference by welding work piece stable centre gripping, stably fix a position the work piece, the precision in the welding has also been improved.

Drawings

Fig. 1 is a schematic structural view of a flexible welding fixture in an embodiment of the present invention;

fig. 2 is a cross-sectional view of the clamping plate and the moving plate according to the embodiment of the present invention.

In the figure: the device comprises a working plate 1, a clamping plate 2, a sliding groove 3, a sliding block 4, a fixing block 5, a positioning rod 6, a positioning hole 7, a connecting groove 8, a positioning ring 9, a threaded rod 10, a baffle plate 11, a moving plate 12, a pushing mechanism 13, a transverse plate 131, a first spring 132, a pushing rod 133, a second spring 14, a baffle ring 15, a limiting ring 16 and a rubber strip 17.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the illustrated embodiments are provided to explain the present invention and not to limit the scope of the invention.

As shown in fig. 1-2, embodiment 1 of the present invention provides a flexible welding fixture, which includes a working plate 1 and two clamping plates 2, the clamping plates 2 are located on the top of the working plate 1, a sliding groove 3 is formed on the top of the working plate 1, a sliding block 4 is arranged on the bottom of the clamping plates 2, the working plate 1 and the clamping plates 2 are slidably connected through the sliding groove 3 and the sliding block 4, fixing blocks 5 are arranged on two sides of the clamping plates 2 parallel to the sliding groove 3, a positioning rod 6 is inserted into the fixing blocks 5, a plurality of positioning holes 7 arranged transversely are formed on two sides of the sliding groove 3 on the top of the working plate 1, the inner diameter of the positioning holes 7 is matched with the outer diameter of the positioning rod 6, a connecting groove 8 is formed on the top of the clamping plates 2, a positioning ring 9 is fixedly arranged on the inner wall of the connecting groove 8, a threaded rod 10 extending to the outside of the connecting groove 8 is arranged inside, the threaded rod 10 is rotatably connected with the connecting groove 8 through a positioning ring 9 and a baffle plate 11, and the outer wall of one end, positioned outside the connecting groove 8, of the threaded rod 10 is in threaded connection with a moving plate 12 positioned above the clamping plate 2.

When the welded workpiece is positioned, the position of the clamping plate 2 can be fixed through the positioning matching of the positioning rod 6 in the fixing block 5 and the positioning hole 7, when the clamping plate 2 on the working plate 1 needs to slide, the positioning rod 6 in the positioning hole 7 is pulled out, the clamping plate 2 is slid, further adjusting the distance between the two clamping plates 2, placing the workpiece on the top of the clamping plates 2, clamping the workpiece by the movable plate 12 and the clamping plates 2 by rotating the threaded rod 10, when the shape and the size of the workpiece are changed, the workpiece can be clamped by adjusting the distance between the two clamping plates 2, the distance between two clamping plates 2 can be adjusted to match the size of the workpiece for workpieces of different sizes, stable clamping can be carried out on different welded workpieces, the workpieces are stably positioned, and the welding precision is also improved.

Embodiment 2 of the present invention provides a flexible welding fixture, based on embodiment 1, two sides of the moving plate 12 parallel to the sliding chute 3 are provided with pushing mechanisms 13, each pushing mechanism 13 includes a horizontal plate 131 fixedly connected to the moving plate 12, a first spring 132 is fixedly disposed at the bottom of the horizontal plate 131, a pushing rod 133 sequentially passing through the first spring 132 and the horizontal plate 131 is disposed inside the first spring 132, the outer wall of the positioning rod 6 is sleeved with a second spring 14 located inside the fixing block 5, the outer wall of the positioning rod 6 is fixedly provided with a retaining ring 15 abutting against one end of the second spring 14, a limiting ring 16 abutting against the other end of the second spring 14 is fixedly disposed inside the fixing block 5, the limiting ring 16 is disposed inside the fixing block 5 and cooperates with the second spring 14 on the positioning rod 6, the bottom of the positioning rod 6 does not contact with the positioning hole 7 under the no external force action of the positioning rod 6, and then enable clamp plate 2 and slide smoothly on working plate 1, when the work piece was placed on clamp plate 2, if the work piece can contact with the top of locating lever 6, then can promote locating lever 6 downwards, make locating lever 6 extend the inside that gets into locating hole 7, thereby fix a position the position of clamp plate 2, if the width of work piece fails to contact with the top of locating lever 6, just can promote locating lever 6 through pushing mechanism 13, and cooperate with locating hole 7, thereby also can fix a position the position of clamp plate 2, also fix a position the position of clamp plate 2 when moving down through movable plate 12, make things convenient for people's operation.

The embodiment 3 of the utility model provides a flexible welding jig, on the basis of embodiment 2, the top of locating lever 6 is the arc surface setting.

The embodiment 4 of the utility model provides a flexible welding jig, on the basis of embodiment 3, one side that movable plate 12 is close to clamping plate 2 is equipped with rubber strip 17, when movable plate 12 carries out the centre gripping with the cooperation of clamping plate 2, takes place deformation through rubber strip 17 and work piece, has increased the frictional force of work piece with movable plate 12, has improved the stability of centre gripping.

The embodiment 5 of the utility model provides a flexible welding jig, on the basis of embodiment 4, the inner wall coating of spout 3 has lubricating oil, guarantees smooth and easy when the cooperation of spout 3 and sliding block 4 to guaranteed that pinch-off blades 2 can normally slide.

When the welding fixture is used, when a welded workpiece needs to be clamped, the distance between the two clamping plates 2 is adjusted to be the distance corresponding to the size of the welded workpiece, then the welded workpiece is placed on the clamping plates 2, the threaded rod 10 is in threaded fit with the moving plate 12 by rotating the threaded rod 10, the bottom end of the threaded rod 10 is rotatably connected with the clamping plates 2, the welded workpiece can be clamped through the moving plate 12, when the moving plate 12 moves downwards, the pushing mechanism 13 pushes the positioning rod 6, the clamping plates 2 can be fixed on the working plate 1, and stable welding work can be achieved on the welded workpiece.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a flexible welding jig which characterized in that: the clamping device comprises a working plate (1) and two clamping plates (2), wherein the clamping plates (2) are positioned at the top of the working plate (1), a sliding groove (3) is formed in the top of the working plate (1), a sliding block (4) is arranged at the bottom of each clamping plate (2), the working plate (1) and the clamping plates (2) are connected in a sliding mode through the sliding groove (3) and the sliding block (4), fixing blocks (5) are arranged on the two sides, parallel to the sliding groove (3), of the clamping plates (2), positioning rods (6) are inserted into the fixing blocks (5), a plurality of positioning holes (7) which are transversely arranged are formed in the two sides, positioned at the top of the working plate (1), of the sliding groove (3), the inner diameter of each positioning hole (7) is matched with the outer diameter of the corresponding positioning rod (6), a connecting groove (8) is formed in the top of each clamping plate (2), and a positioning ring (9) is fixedly arranged, the inside of spread groove (8) is equipped with and extends to spread groove (8) outside threaded rod (10), threaded rod (10) are located spread groove (8) inside one end is equipped with and is located baffle (11) of holding ring (9) below, threaded rod (10) are connected through holding ring (9) and baffle (11) rotation with spread groove (8), threaded rod (10) are located the outer wall threaded connection of spread groove (8) outside one end has and is located movable plate (12) of clamp plate (2) top.

2. The flexible welding fixture of claim 1, wherein: the movable plate (12) is parallel to two sides of the sliding groove (3) and is provided with a pushing mechanism (13), the pushing mechanism (13) comprises a transverse plate (131) fixedly connected with the movable plate (12), a first spring (132) is fixedly arranged at the bottom of the transverse plate (131), a pushing rod (133) sequentially penetrating through the first spring (132) and the transverse plate (131) is arranged inside the first spring (132), a second spring (14) positioned inside the fixed block (5) is sleeved on the outer wall of the positioning rod (6), a baffle ring (15) abutted against one end of the second spring (14) is fixedly arranged on the outer wall of the positioning rod (6), a limiting ring (16) abutted against the other end of the second spring (14) is fixedly arranged inside the fixed block (5), and the limiting ring (16) is positioned below the second spring (14), the spring constant of the first spring (132) is greater than the spring constant of the second spring (14).

3. The flexible welding fixture of claim 1, wherein: the top of the positioning rod (6) is arranged as an arc surface.

4. The flexible welding fixture of claim 1, wherein: and a rubber strip (17) is arranged on one side of the moving plate (12) close to the clamping plate (2).

5. The flexible welding fixture of claim 1, wherein: the inner wall of the sliding chute (3) is coated with lubricating oil.