Vacuum brazing clamp tool

Abstract

The utility model discloses a vacuum brazing clamp tool which comprises a platform and an adjusting assembly, supporting feet are installed below the platform and welded to the platform, the adjusting assembly is installed in the platform, a first workpiece is arranged above the adjusting assembly, a second workpiece is arranged above the first workpiece, and the adjusting assembly is connected with the platform. Side sliding rails are installed on the left side and the right side of the upper portion of the platform, and lifting blocks are slidably connected into the side sliding rails. Compared with an existing clamp tool, the vacuum brazing clamp tool has the advantages that a first workpiece is placed on the platform, a rotary handle is rotated to change the height of a supporting screw rod, a lifting block moves up and down in a side sliding rail to change the height of a lead screw, the lead screw is rotated to enable a clamping block to abut against the side face of the first workpiece, the fixing effect is better, and a sliding rod set slides left and right on a guide rod; the sliding block slides back and forth on the sliding rod set, so that the abutting block moves to the position above the second workpiece, the pressing rod is rotated to enable the abutting block to abut against the second workpiece, and the welded parts of the first workpiece and the second workpiece are tightly attached.

Description

Technical Field

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

[0002] Vacuum brazing refers to the heating of workpieces within a vacuum chamber, primarily used for welding products requiring high quality and easily oxidized materials. A vacuum brazing furnace comprises a pressure vessel with cylindrical sidewalls and a door, the door's size and position designed to close one end of the cylindrical sidewall. A workpiece handling system, mounted on the pressure vessel door, supports the metal workpiece for heat treatment or brazing. This system includes a device for rotating the workpiece during processing. A vacuum system can be connected to the workpiece, ensuring the internal pressure is below atmospheric pressure during brazing. Clamping is typically required during welding to ensure a stable and precise weld, necessitating a vacuum brazing fixture.

[0003] The existing patent, CN221695539U, entitled "A Fixture for Vacuum Brazing," discloses a fixture for vacuum brazing, comprising a base plate, a first liquid cooling plate placed on top of the base plate, a second liquid cooling plate placed against the top of the first liquid cooling plate, a top plate mounted above the base plate, a pressure plate at the bottom of the top plate abutting against the top of the second liquid cooling plate, positioning rods fixedly connected at the four corners of the top of the base plate, symmetrically having sliding grooves on both sides of the top of the positioning rods, and evenly formed arc-shaped slots along the circumferential direction on the sides of the sliding grooves from top to bottom, and rotating rings movably mounted at the four corners of the top of the top of the top plate, with sliders symmetrically arranged on both sides of the inner wall of the rotating rings, the sliders being able to slide sequentially connected to the inner sides of the sliding grooves and arc-shaped slots, the base plate and the top plate being connected and installed by the positioning rods and rotating rings, which is convenient to operate and can be used to clamp and fix liquid cooling plates of various thicknesses.

[0004] The above-mentioned device is installed and connected by a positioning rod and a rotating ring, which is convenient to operate and can be used to clamp and fix liquid cooling plates of various thicknesses. However, the device has a limited range of applications and poor adaptability to irregularly shaped workpieces, which cannot meet people's needs. In view of the above situation, technical innovation is carried out on the basis of existing fixtures and tooling. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum brazing fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum brazing fixture, comprising a platform and an adjustment assembly, characterized in that: a support leg is installed below the platform and the support leg is welded to the platform; the adjustment assembly is installed inside the platform; a workpiece one is arranged above the adjustment assembly; a workpiece two is arranged above the workpiece one; side slide rails are installed on the left and right sides above the platform; and lifting blocks are slidably connected inside the side slide rails.

[0007] Furthermore, the adjustment assembly includes a support screw and a handle, with the handle installed below the support screw. Rotating the handle changes the height of the support screw, thereby conforming to the irregular surface of the support workpiece.

[0008] Furthermore, the lifting block is internally threaded with a lead screw, and one end of the lead screw is rotatably connected to a clamping block. Rotating the lead screw causes the clamping block to press against the side of the workpiece, so that the two clamping blocks clamp the workpiece.

[0009] Furthermore, guide rods are installed on the front and rear sides of the platform, and sliding rod assemblies are slidably connected to the periphery of the guide rods, which slide left and right on the guide rods.

[0010] Furthermore, a slider is installed on the periphery of the slide bar assembly, and the slider is slidably connected to the slide bar assembly, allowing the slider to slide back and forth on the slide bar assembly.

[0011] Furthermore, a pressure rod is installed inside the slider, and the pressure rod is threadedly connected to the slider. Rotating the pressure rod causes the abutment to press against the second workpiece, so that the welded parts of the first workpiece and the second workpiece fit tightly together.

[0012] Furthermore, a spring rod is installed below the pressure rod, and a stop block is rotatably connected below the spring rod. The spring rod keeps the pressure between workpiece one and workpiece two within a suitable range, resulting in better vacuum brazing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When workpiece 1 is placed on the platform, the height of the support screw is changed by rotating the handle, thereby fitting the irregular surface of workpiece 1. The lifting block moves up and down in the side slide rail to change the height of the lead screw. Rotating the lead screw will press the clamping block against the side of workpiece 1, so that the two clamping blocks clamp workpiece 1, resulting in a better fixing effect. The slide bar group slides left and right on the guide rod, and the slider slides back and forth on the slide bar group, thereby moving the abutment block above workpiece 2. Rotating the pressure rod will press the abutment block against workpiece 2, making the welded part of workpiece 1 and workpiece 2 fit tightly. The spring rod keeps the pressure of workpiece 1 and workpiece 2 fitting within a suitable range, resulting in a better vacuum brazing effect.

[0014] 1. In this utility model, the workpiece is placed on the platform, and the height of the support screw is changed by rotating the handle, so as to fit the irregular surface of the workpiece. The lifting block moves up and down in the side slide rail to change the height of the screw. The screw is rotated to press the clamping block against the side of the workpiece, so that the two clamping blocks clamp the workpiece, and the fixing effect is better.

[0015] 2. In this utility model, the sliding rod assembly slides left and right on the guide rod, and the slider slides back and forth on the sliding rod assembly, thereby moving the abutment block above the second workpiece. The rotating pressure rod makes the abutment block press against the second workpiece, so that the welded part of the first workpiece and the second workpiece fits tightly. The spring rod keeps the pressure of the first workpiece and the second workpiece fitting within a suitable range, resulting in a better vacuum brazing effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a vacuum brazing fixture according to the present invention.

[0017] Figure 2 This is a bottom-view three-dimensional structural diagram of a vacuum brazing fixture according to the present invention.

[0018] Figure 3 This is a frontal three-dimensional structural diagram of a vacuum brazing fixture according to the present invention.

[0019] In the diagram: 1. Platform; 2. Support leg; 3. Adjustment component; 301. Support screw; 302. Handle; 4. Side slide rail; 5. Lifting block; 6. Lead screw; 7. Clamping block; 8. Workpiece 1; 9. Workpiece 2; 10. Guide rod; 11. Slide rod assembly; 12. Slider; 13. Pressure rod; 14. Spring rod; 15. Abutment block. Detailed Implementation

[0020] like Figure 1-3 As shown, a vacuum brazing fixture includes a platform 1 and an adjustment assembly 3. Support legs 2 are installed below the platform 1 and are welded to the platform 1. The adjustment assembly 3 is installed inside the platform 1, and a workpiece 8 is positioned above the adjustment assembly 3. A workpiece 9 is positioned above the workpiece 8. Side slide rails 4 are installed on the left and right sides above the platform 1, and lifting blocks 5 are slidably connected inside the side slide rails 4. The adjustment assembly 3 includes a support screw 301 and a handle 302, with the handle 302 installed below the support screw 301. A lead screw 6 is threadedly connected inside the lifting block 5, and a clamping block 7 is rotatably connected to one end of the lead screw 6. When workpiece 8 is placed on the platform 1, rotating the handle 302 changes the height of the support screw 301, thereby conforming to the irregular surface of the workpiece 8. The lifting block 5 moves up and down in the side slide rails 4 to change the height of the lead screw 6. Rotating the lead screw 6 presses the clamping block 7 against the side of the workpiece 8, so that the two clamping blocks 7 clamp the workpiece 8, resulting in better fixation.

[0021] Guide rods 10 are installed on the front and rear sides of the upper part of platform 1, and slide rod assembly 11 is slidably connected to the outer periphery of guide rods 10. Slider 12 is installed on the outer periphery of slide rod assembly 11, and slider 12 is slidably connected to slide rod assembly 11. Pressure rod 13 is installed inside slider 12, and pressure rod 13 is threadedly connected to slider 12. Spring rod 14 is installed below pressure rod 13, and a stop block 15 is rotatably connected to the lower part of spring rod 14. Slide rod assembly 11 slides left and right on guide rod 10, and slider 12 slides back and forth on slide rod assembly 11, so that the stop block 15 moves above workpiece 2 9. Rotating pressure rod 13 makes the stop block 15 abut against workpiece 2 9, so that the welded part of workpiece 1 8 and workpiece 2 9 fits tightly. Spring rod 14 keeps the pressure of workpiece 1 8 and workpiece 2 9 within a suitable range, resulting in better vacuum brazing effect.

[0022] Working principle: When using this vacuum brazing fixture, firstly, place workpiece 8 on platform 1, rotate handle 302 to change the height of support screw 301, thereby fitting the irregular surface of workpiece 8. Lifting block 5 moves up and down in side slide rail 4 to change the height of lead screw 6. Rotating lead screw 6 presses clamping block 7 against the side of workpiece 8, so that the two clamping blocks 7 clamp workpiece 8, resulting in better fixation. Slide rod assembly 11 slides left and right on guide rod 10, and slider 12 slides back and forth on slide rod assembly 11, thereby moving abutment block 15 above workpiece 9. Rotating pressure rod 13 makes abutment block 15 press against workpiece 9, so that the welded part of workpiece 8 and workpiece 9 fits tightly. Spring rod 14 keeps the pressure of workpiece 8 and workpiece 9 within a suitable range, resulting in better vacuum brazing effect.

Claims

1. A vacuum brazing fixture, comprising a platform (1) and an adjustment assembly (3), characterized in that, The platform (1) is welded and installed with support legs (2) below it. The adjustment component (3) is installed inside the platform (1). A workpiece one (8) is set above the adjustment component (3). A workpiece two (9) is set above the workpiece one (8). Side slide rails (4) are installed on the upper left and right sides of the platform (1). A lifting block (5) is slidably connected inside the side slide rails (4).

2. The vacuum brazing fixture according to claim 1, characterized in that, The adjustment assembly (3) includes a support screw (301) and a handle (302), and the handle (302) is installed below the support screw (301).

3. The vacuum brazing fixture according to claim 1, characterized in that, The lifting block (5) is internally threaded with a lead screw (6), and one end of the lead screw (6) is rotatably connected to a clamping block (7).

4. The vacuum brazing fixture according to claim 1, characterized in that, Guide rods (10) are installed on the front and rear sides above the platform (1), and slide rods (11) are slidably connected to the outer periphery of the guide rods (10).

5. A vacuum brazing fixture according to claim 4, characterized in that, The slider (12) is slidably connected to the periphery of the slider assembly (11).

6. A vacuum brazing fixture according to claim 5, characterized in that, The slider (12) is internally threaded with a pressure rod (13).

7. A vacuum brazing fixture according to claim 6, characterized in that, A spring rod (14) is installed below the pressure rod (13), and a stop block (15) is rotatably connected below the spring rod (14).

Images