Graphite pneumatic clamping tool for water-cooling diffusion welding
By using a water-cooled diffusion-welded graphite pneumatic clamping fixture, a large clamping force is provided by a long pressure plate and cylinder design, and high temperature is blocked by water-cooled pipelines. This solves the problems of low efficiency and easy deformation of screws in traditional clamping fixtures, and achieves stable clamping and efficient production.
Patent Information
- Application Number
- CN202520200632.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In traditional diffusion welding clamping fixtures, manual tightening is inefficient and screws are prone to deformation, which can cause graphite to shift or deviate, affecting the welding quality of soft copper busbars.
A water-cooled diffusion welding graphite pneumatic clamping fixture is adopted, which uses a long pressure plate and cylinder design to provide a large clamping force and is cooled by three water-cooling pipelines to block the influence of high temperature.
It provides stable clamping force in limited space and cylinder force, improves production efficiency, extends screw life, and avoids insufficient clamping force and graphite misalignment.
Smart Images

Figure CN223848314U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to clamping tool field, especially relates to a water -cooling diffusion welding graphite pneumatic clamping tool. BACKGROUND
[0002] In the field of soft copper bar diffusion welding, graphite is usually used as electrode. In the traditional diffusion welding clamping tool, clamping is usually locked by screw, which causes serious waste of manpower and low efficiency.
[0003] At the same time, the screw is frequently replaced by manual tightening, the normal working temperature of graphite is usually above 700 DEG C, the screw is deformed by heat conduction of the pressing plate and frequent disassembly, and the two items accelerate the damage of the screw, thereby causing displacement or deviation of the graphite, and further causing batch defects of soft copper bar welding.
[0004] Therefore, it is urgent to design a new tool to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model discloses a water -cooling diffusion welding graphite pneumatic clamping tool, which is designed by long pressing plate and air cylinder, to ensure a large clamping force under the action of limited space and limited air cylinder force, and to cool and block by three water cooling pipes, to block the heating of air cylinder and movable screw, to ensure the durability of clamping and to improve production efficiency.
[0006] Technical scheme: in order to realize the above object, the utility model provides a water -cooling diffusion welding graphite pneumatic clamping tool, which comprises a base, an electrode plate, a limiting component, a pressing block and a set of clamping components, the electrode plate is arranged on the base, the limiting component is arranged on the electrode plate, the pressing block is arranged on the electrode plate and is limited by the limiting component, the clamping component is arranged on both sides of the base and is used for pressing the pressing block, the clamping component comprises a clamping mounting seat, an air cylinder and a long pressing plate, the clamping mounting seat is arranged on one side of the base, the air cylinder is arranged at one end of the clamping mounting seat away from the base, one end of the long pressing plate is connected with the output end of the air cylinder, and the other end is used for pressing the pressing block. In the case that the diffusion welding installation space is limited, the air cylinder force required by the graphite clamping force is large, the long pressing plate is designed in cooperation with the air cylinder, to ensure a large clamping force under the action of limited space and limited air cylinder force.
[0007] Further, the pressing block is provided with a notch on both sides, one end of the long pressing plate away from the air cylinder is provided with an opening, and the opening and the notch are matched to complete pressing. The matching design of the opening and the notch makes the pressing force evenly distributed on the strip, avoiding deformation caused by local excessive stress.
[0008] Further, the width of the gap is greater than the thickness of the long pressing plate, so that the long pressing plate can be slightly lifted, facilitating disassembly and installation.
[0009] Further, the middle part of the long pressing plate is connected with the clamping mounting seat through a movable screw.
[0010] Further, the long pressing plate is provided with a water cooling pipeline, and the water cooling pipeline is arranged on one side of the movable screw close to the pressing block.
[0011] Further, the clamping mounting seat is also provided with a set of water cooling pipelines, and the water cooling pipelines are arranged close to the movable screw and between the cylinder and the base respectively.
[0012] Further, the limiting assembly comprises a positioning plate and a positioning sheet, the positioning plate is arranged on the electrode plate, and the positioning sheet is arranged in the middle part of the positioning plate through a locking screw.
[0013] The above technical scheme can achieve the following beneficial effects:
[0014] 1. The water-cooled diffusion welding graphite pneumatic clamping tool can ensure a large clamping force under the action of limited space and limited cylinder force through the design of the long pressing plate cooperating with the cylinder.
[0015] 2. The water-cooled diffusion welding graphite pneumatic clamping tool can ensure the durability of clamping and improve the production efficiency through the water cooling design of the three water cooling pipelines for cooling and blocking the heating of the cylinder and the movable screw. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 FIG. 1 is a structural schematic view of the water-cooled diffusion welding graphite pneumatic clamping tool;
[0017] Figure 2 FIG. 2 is a front view of the water-cooled diffusion welding graphite pneumatic clamping tool;
[0018] Figure 3 FIG. 3 is a top view of the water-cooled diffusion welding graphite pneumatic clamping tool;
[0019] In the drawings:
[0020] 1. Base;
[0021] 2 - electrode plate;
[0022] 3 - limiting assembly; 31 - positioning plate; 32 - positioning piece;
[0023] 4 - pressing block; 41 - notch;
[0024] 5 - clamping assembly; 51 - clamping mounting seat; 52 - air cylinder; 53 - long pressing plate;
[0025] 531 - opening; 532 - movable screw; 533 - water cooling pipeline. DETAILED DESCRIPTION
[0026] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. EMBODIMENT
[0027] In this embodiment, as Figure 1 , the present application discloses a water-cooled diffusion welding graphite pneumatic clamping tool, which comprises a base 1, an electrode plate 2, a limiting assembly 3, a pressing block 4 and a set of clamping assemblies 5; the electrode plate 2 is arranged on the base 1; the limiting assembly 3 is arranged on the electrode plate 2; the pressing block 4 is arranged on the electrode plate 2 and is limited by the limiting assembly 3; the clamping assembly 5 is arranged on both sides of the base 1 and is used for pressing the pressing block 4; the clamping assembly 5 comprises a clamping mounting seat 51, an air cylinder 52 and a long pressing plate 53; the clamping mounting seat 51 is arranged on one side of the base 1; the air cylinder 52 is arranged at one end of the clamping mounting seat 51 away from the base 1; one end of the long pressing plate 53 is connected with the output end of the air cylinder 52, and the other end is used for pressing the pressing block 4.
[0028] Specifically, as Figure 1 , the clamping mounting seat 51 is connected with the side edge of the base 1 through a bolt, and a reinforcing block is arranged at the bent part of the clamping mounting seat 51 to ensure the strength of the bending.
[0029] In this embodiment, as Figure 1 and Figure 2 , notches 41 are arranged on both sides of the pressing block 4; an opening 531 is arranged at one end of the long pressing plate 53 away from the air cylinder 52; the opening 531 and the notch 41 cooperate to complete the pressing.
[0030] Specifically, the contact surface of the opening 531 and the notch 41 can be selected as an abrasive surface as an optimization, so as to improve the friction between them and prevent deviation during clamping.
[0031] In this embodiment, as Figure 1 andFigure 2 The width of the gap 41 is greater than the thickness of the long pressing plate 53.
[0032] Specifically, the width of the gap 41 is set to twice the thickness of the long pressing plate 53 as preferred.
[0033] In this embodiment, the long pressing plate 53 is connected to the clamping mounting seat 51 through a movable screw 532. Figure 1
[0034] Specifically, the upper end of the clamping mounting seat 51 is provided with a bending platform, which is connected to the long pressing plate 53 through the movable screw 532. Figure 1
[0035] In particular, the long pressing plate 53 is provided with an opening, which is longer than the radius of the movable screw 532, facilitating position adjustment.
[0036] In particular, the movable screw 532 is preferably selected as an equal height screw, and the movable screw 532 is designed as a light rod.
[0037] In this embodiment, the long pressing plate 53 is provided with a water cooling pipeline 533; the water cooling pipeline 533 is arranged on one side of the movable screw 532 close to the pressing block 4. Figure 1 Specifically, the connection between the water cooling pipeline 533 and the condensate pipe is preferably connected by a clamp, which is convenient to install without the need for special tools, and is currently suitable for limited space installation environment.
[0038] In this embodiment, the clamping mounting seat 51 is also provided with a set of water cooling pipelines 533; the water cooling pipelines 533 are respectively arranged near the movable screw 532 and between the air cylinder 52 and the base 1.
[0039] Figure 1 In particular, the number of water cooling pipelines 533 between the air cylinder 52 and the base 1 can be increased according to the temperature environment of specific production operation.
[0040] In this embodiment, the limiting assembly 3 includes a positioning plate 31 and a positioning sheet 32; the positioning plate 31 is arranged on the electrode plate 2; and the positioning sheet 32 is arranged in the middle of the positioning plate 31 through a locking screw.
[0041] Figure 1 Figure 3 Specifically, the positioning plate 31 has the same width as the electrode plate 2, ensuring clamping effect while not affecting the installation of the clamping mounting seat 51.
[0042] In particular, the positioning plate 31 has the same width as the electrode plate 2, ensuring clamping effect while not affecting the installation of the clamping mounting seat 51.
[0043] Figure 3 The positioning sheet 32 can be additionally provided with a rubber part on one side of the pressing block 4 to prevent damage of the two and increase the friction therebetween, thereby ensuring the accuracy of the limiting.
[0044] The working principle of the above embodiment is as follows:
[0045] The utility model discloses a water -cooling diffusion welding graphite pneumatic clamping frock, places electrode plate 2 on base 1, places positioning plate 31 on electrode plate 2, and pressing block 4 is also placed on electrode plate 2, and limiting is carried out through positioning plate 31 and positioning sheet 32, long pressing plate 53 is pressed tightly pressing block 4 through the cooperation of opening 531 and notch 41 under the drive of air cylinder 52, and the clamping of electrode plate 2 is completed, simultaneously, the even circulation of coolant in water -cooling pipeline 533.
[0046] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a number of improvements can be made, and these improvements should also be regarded as the protection scope of the utility model.
Claims
1. A water-cooled diffusion bonded graphite pneumatic clamping tool, characterized by: Include: Base (1), electrode plate (2), electrode plate (2) is provided on the base (1); Limiting assembly (3), the limiting assembly (3) is provided on the electrode plate (2); Press block (4), the press block (4) is provided on the electrode plate (2), and is limited by the limiting assembly (3); A set of clamping assembly (5), the clamping assembly (5) is provided on both sides of the base (1), used for pressing the press block (4); The clamping assembly (5) includes clamping mounting seat (51), air cylinder (52) and long pressing plate (53); the clamping mounting seat (51) is provided on one side of the base (1); the air cylinder (52) is provided on the end of the clamping mounting seat (51) away from the base (1); one end of the long pressing plate (53) is connected with the output end of the air cylinder (52), and the other end is used for pressing the press block (4).
2. The water-cooled diffusion-welded graphite pneumatic clamping fixture of claim 1, wherein: The both sides of the press block (4) are provided with notches (41); the end of the long pressing plate (53) away from the air cylinder (52) is provided with an opening (531); the opening (531) and the notch (41) cooperate to complete the pressing.
3. The water-cooled diffusion bonded graphite aerodynamic clamping fixture of claim 2, wherein: The width of the notch (41) is greater than the thickness of the long pressing plate (53).
4. The water-cooled diffusion bonded graphite aerodynamic clamping fixture of claim 1, wherein: The middle part of the long pressing plate (53) is connected with the clamping mounting seat (51) through the activity screw (532).
5. The water-cooled diffusion-welded graphite pneumatic clamp tool of claim 4, wherein: The long pressing plate (53) is provided with water cooling pipeline (533); the water cooling pipeline (533) is provided on the side of the activity screw (532) close to the press block (4).
6. The water-cooled diffusion bonded graphite aerodynamic clamping fixture of claim 5, wherein: The clamping mounting seat (51) is also provided with a set of water cooling pipeline (533); the water cooling pipeline (533) is respectively provided between the activity screw (532) and the air cylinder (52) and the base (1).
7. The water-cooled diffusion bonded graphite pneumatic clamping fixture of claim 1, wherein: The limiting assembly (3) includes positioning plate (31) and positioning sheet (32); The positioning plate (31) is provided on the electrode plate (2); the positioning sheet (32) is provided in the middle part of the positioning plate (31) through the locking screw.