Graphite clamping jig for welding

Abstract

The utility model relates to a graphite clamping jig for welding, and belongs to the technical field of clamping jigs. Comprising a base, connecting plates are arranged on the two sides of the upper end of the base, first springs are arranged on the side faces of the connecting plates, clamping pieces are connected to one ends of the first springs, the clamping pieces are hollow and movably connected with limiting mechanisms, adjusting grooves matched with the limiting mechanisms are formed in the upper end of the base, and heat dissipation holes are formed in the side faces of the clamping pieces. A ventilation groove is formed in the center of the base, and evenly-distributed ventilation holes are formed in the upper end of the ventilation groove. By arranging the limiting mechanism, the position of the clamping piece can be fixed, and the situation that the clamping piece moves during clamping, and consequently welding deformation is caused is avoided; and the ventilation groove is formed in the center of the base and matched with the ventilation holes and the heat dissipation holes, so that a workpiece can be effectively cooled during welding, and thermal expansion of the workpiece caused by high temperature is avoided.

Description

Technical Field

[0001] The utility model relates to a graphite clamping jig for welding, belonging to the technical field of clamping jigs. Background Art

[0002] Graphite welding fixtures are special tools used to fix and support workpieces during the welding process. They are usually used in precision welding operations such as aerospace, automotive manufacturing, medical equipment and other fields.

[0003] A search revealed publication number CN221210386U, which discloses a graphite welding fixture. The fixture comprises an electrode plate, two clamping blocks slidably mounted on top of the electrode plate, and a graphite block sandwiched between the two clamping blocks. The electrode plate is equipped with a convenient drive assembly that simultaneously drives the two clamping blocks. The clamping blocks are L-shaped, with grooves on both sides of the graphite block for mating with the clamping blocks. A through slot is defined at the bottom of the graphite block, within which a cooling assembly is fixedly embedded to enhance heat dissipation. This utility model provides a graphite welding fixture that simultaneously drives the two clamping blocks, facilitates operation when clamping the graphite block, and enhances heat dissipation during welding.

[0004] However, during the use of the fixture, the fixing effect is not good and the graphite block is prone to loosening, which will cause welding deformation. At the same time, heat dissipation through the condenser increases the cost of the fixture. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing graphite clamping jig for welding has a poor fixing effect during use, and the graphite blocks are easily loosened. At the same time, heat dissipation through the condenser increases the cost of the jig.

[0006] In order to solve the above problems, the utility model provides a graphite clamping jig for welding, including a base, connecting plates are provided on both sides of the upper end of the base, a spring is provided on the side of the connecting plate, one end of the spring is connected to a clamping piece, the clamping piece is hollow and movably connected to a limiting mechanism, an adjustment groove adapted to the limiting mechanism is provided on the upper end of the base, heat dissipation holes are provided on the side of the clamping piece, a ventilation groove is provided at the center of the base, and evenly distributed ventilation holes are provided on the upper end of the ventilation groove.

[0007] Further: the limiting mechanism includes a connecting rod, an adjusting shaft, a limiting plate, and two springs. The two adjusting shafts are fixedly connected to the two ends of the connecting rod. The adjusting shaft is arranged in the clamping member and the lower end is fixedly connected to the limiting plate. The adjusting shaft is movably connected to the through hole at the upper end of the clamping member. The two ends of the spring are respectively fixedly connected to the lower end of the adjusting shaft and the upper end of the clamping member.

[0008] Furthermore: the adjustment shaft is in the shape of a barbell, and the two springs are arranged on the outside of the adjustment shaft.

[0009] Furthermore: the lower end of the clamping member is provided with an adjustment hole adapted to the limiting plate, and the limiting plate is adapted to the adjustment slot.

[0010] Furthermore: a plurality of the adjustment slots are evenly distributed above the base.

[0011] Furthermore: two springs 1 are connected to the side of the connecting plate, and the other ends of the two springs 1 are fixedly connected to the two ends of the side of the clamping member respectively.

[0012] Furthermore: both ends of the clamping member are hollowed out.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] This patent can fix the position of the clamping part by setting a limit mechanism to prevent the clamping part from moving during clamping, which may cause welding deformation.

[0015] By setting a ventilation slot at the center of the base and matching it with ventilation holes and heat dissipation holes, the workpiece can be effectively cooled during welding to avoid thermal expansion of the workpiece caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This utility model is a structure of a graphite clamping fixture for welding Figure 1 .

[0018] Figure 2 This utility model is a structure of a graphite clamping fixture for welding Figure 2 .

[0019] Figure 3 This is a base structure diagram of a graphite clamping fixture for welding in the utility model.

[0020] Figure 4 This is an exploded view of a clamping part of a graphite clamping fixture for welding according to the utility model.

[0021] In the attached figure:

[0022] 1. Base; 11. Connecting plate; 12. Spring 1; 13. Adjustment slot; 14. Ventilation slot; 15. Ventilation hole; 2. Clamping piece; 21. Heat dissipation hole; 3. Limiting mechanism; 31. Connecting rod; 32. Adjustment shaft; 33. Limiting plate; 34. Spring 2. DETAILED DESCRIPTION

[0023] 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.

[0024] Combined with attachment Figure 1 、 2 The utility model provides a graphite clamping jig for welding, comprising a base 1, with connecting plates 11 provided on both sides of the upper end of the base 1, two springs 12 connected to the side of the connecting plate 11, the other ends of the two springs 12 are respectively fixedly connected to the two ends of the side of the clamping member 2, first push the clamping member 2 to compress the spring 12, then put the workpiece between the two clamping members 2, release the clamping member 2, and the clamping member 2 is clamped by the spring to clamp the workpiece, the clamping member 2 is hollow and hollowed at both ends, which is convenient for heat dissipation during welding;

[0025] Combined with attachment Figure 1 、 2 , 4, the clamping member 2 is movably connected to the limiting mechanism 3, the limiting mechanism 3 includes a connecting rod 31, an adjusting shaft 32, a limiting plate 33, and a second spring 34. The two adjusting shafts 32 are fixedly connected to both ends of the connecting rod 31. The adjusting shaft 32 is barbell-shaped. The adjusting shaft 32 is arranged in the clamping member 2 and the lower end is fixedly connected to the limiting plate 33. The adjusting shaft 32 is movably connected to the through hole at the upper end of the clamping member 2. The two ends of the second spring 34 are respectively fixedly connected to the lower end of the adjusting shaft 32 and the upper end of the clamping member 2 and are sleeved on the outside of the adjusting shaft 32. The lower end of the clamping member 2 is provided with a limiting plate The adjusting holes 33 are adapted to each other, and the upper end of the base 1 is provided with evenly distributed adjusting slots 13 adapted to the limiting plates 33. After the workpiece is placed, the limiting plates 33 in the adjusting slots 13 on both sides are lifted at the same time by the connecting rods 31 on both sides of the base 1. The clamping member 2 is squeezed and clamped by the spring 12. The connecting rod 31 is released, and the spring 2 34 pushes the adjusting shaft 32 down, so that the limiting plates 33 are inserted into the corresponding adjusting slots 13, completing the fixation of the clamping member 2, and preventing the clamping member 2 from moving during clamping, which may cause welding deformation.

[0026] Combined with attachment Figure 1-4 A heat dissipation hole 21 is provided on the side of the clamping member 2, a ventilation slot 14 is provided at the center of the base 1, and evenly distributed ventilation holes 15 are provided on the upper end of the ventilation slot 14. When welding the workpiece, the heat of the clamping member 2 can be dissipated from the heat dissipation holes 21, and the heat of the base 1 enters the ventilation slot 14 from the ventilation holes 15 and dissipates, thereby ensuring effective heat dissipation of the workpiece during welding, avoiding the phenomenon of thermal expansion of the workpiece caused by high temperature or even deformation of the workpiece.

[0027] The working principle of this application is:

[0028] First, push the clamping part 2 to compress the spring 12, then place the workpiece between the two clamping parts 2, and lift the limit plates 33 in the adjustment grooves 13 on both sides through the connecting rods 31 on both sides of the base 1 at the same time. The clamping part 2 is squeezed and clamped by the spring 12, and the connecting rod 31 is released. The spring 2 34 pushes the adjustment shaft 32 down, so that the limit plates 33 are inserted into the corresponding adjustment grooves 13, completing the fixation of the clamping part 2, avoiding the clamping part 2 from moving during clamping, resulting in welding deformation; at the same time, when welding the workpiece, the heat of the clamping part 2 can be dissipated from the heat dissipation holes 21, and the heat of the base 1 enters the ventilation slots 14 from the ventilation holes 15 and dissipates, thereby ensuring effective heat dissipation of the workpiece during welding, avoiding the phenomenon of thermal expansion of the workpiece caused by high temperature or even deformation of the workpiece.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A graphite clamping fixture for welding, comprising a base (1), characterized in that: Connecting plates (11) are provided on both sides of the upper end of the base (1), a spring (12) is provided on the side of the connecting plate (11), one end of the spring (12) is connected to a clamping member (2), the clamping member (2) is hollow and movably connected to a limiting mechanism (3), an adjusting groove (13) adapted to the limiting mechanism (3) is provided on the upper end of the base (1), a heat dissipation hole (21) is provided on the side of the clamping member (2), a ventilation groove (14) is provided at the center of the base (1), and evenly distributed ventilation holes (15) are provided at the upper end of the ventilation groove (14).

2. A graphite clamping fixture for welding according to claim 1, characterized in that: The limiting mechanism (3) comprises a connecting rod (31), an adjusting shaft (32), a limiting plate (33), and a second spring (34). The two adjusting shafts (32) are fixedly connected to the two ends of the connecting rod (31). The adjusting shaft (32) is arranged in the clamping member (2) and the lower end is fixedly connected to the limiting plate (33). The adjusting shaft (32) is movably connected to the through hole at the upper end of the clamping member (2). The two ends of the second spring (34) are fixedly connected to the lower end of the adjusting shaft (32) and the upper end of the clamping member (2), respectively.

3. A graphite clamping fixture for welding according to claim 2, characterized in that: The adjusting shaft (32) is in the shape of a barbell, and the second spring (34) is sleeved on the outside of the adjusting shaft (32).

4. The graphite welding fixture according to claim 2, characterized in that: The lower end of the clamping member (2) is provided with an adjustment hole adapted to the limiting plate (33), and the limiting plate (33) is adapted to the adjustment slot (13).

5. The graphite clamping fixture for welding according to claim 1, characterized in that: A plurality of the adjustment slots (13) are evenly distributed above the base (1).

6. The graphite clamping fixture for welding according to claim 1, characterized in that: Two springs (12) are connected to the side of the connecting plate (11), and the other ends of the two springs (12) are fixedly connected to the two ends of the side of the clamping member (2).

7. The graphite clamping fixture for welding according to claim 6, characterized in that: Both ends of the clamping member (2) are hollowed out.

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