Hydraulic cold welding machine

Abstract

The utility model relates to a hydraulic type cold welding machine in the field of cold welding machines, which comprises a machine body, a main control circuit board, an oil pump motor, a welding die and a hydraulic power device, a welding workbench is arranged on the surface of the machine body, the welding die is arranged on the workbench, and the hydraulic power device is in transmission connection with two ends of the welding die. A supporting frame is arranged on the edge of the welding workbench, a lower positioning roller, an upper positioning roller, a movable sliding block and a spring are arranged in the supporting frame, a guide sliding groove is formed in the inner wall of the supporting frame, the movable sliding block is arranged in the guide sliding groove in a sliding mode, the upper positioning roller is horizontally arranged in the movable sliding block in a rotatable mode, and the lower positioning roller is horizontally arranged in the supporting frame in a rotatable mode. The spring is arranged between the movable sliding block and the supporting frame, the upper positioning roller and the lower positioning roller can limit the positions of the metal wires, the metal wires at the two ends can be automatically aligned after being clamped by the upper positioning roller and the lower positioning roller, the positions of the metal wires are prevented from deviating, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of cold welding machines, in particular to a hydraulic cold welding machine. Background Art

[0002] A cold welding machine, also known as a wire cold welding machine or cold pressure welding machine, is a type of welding equipment that combines metal wires by pressure and pressure without any additives or electrical energy. The operating principle of a cold welding machine is based on a concentrated pressure load. Under this pressure, the contact area between the two surfaces to be joined increases, breaking down the original oxide film on the welding surface that hinders welding. The high pressure load then brings the exposed pure metal into close contact, achieving the molecular and atomic structure connection principle, thus welding various metal wires. This welding method does not require flux or heating of the wires, hence the name cold welding.

[0003] A hydraulic cold joining machine is a specialized device that utilizes a hydraulic transmission system to achieve cold joining. It combines the stability of hydraulic technology with the advantages of cold joining technology, such as no heat-affected zone (HAZ) and zero weld deformation. It eliminates the need for a heat source or welding materials, avoiding potential safety hazards such as fire and explosion, while also reducing the emission of harmful gases and the generation of waste residue. The cold joining process involves plastic deformation rather than melting, resulting in welds with no HAZ, deformation, cracks, or other defects, ensuring high weld quality.

[0004] In existing hydraulic cold joining machines, when inserting metal wires into the welding mold for welding, it is often necessary for humans to observe the positions of the two metal wires with their eyes and manually adjust the positions of the end faces of the two metal wires to align the end faces of the two metal wires before starting the machine for welding. During welding, workers are also required to hold the metal wires to prevent them from shifting. The two metal wires are prone to misalignment, which affects the quality of welding. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technical solutions, the utility model provides a hydraulic cold welding machine, which can effectively solve the technical problem that the metal wires to be welded are easily misaligned.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A hydraulic cold welding machine includes a machine body, a main control circuit board, an oil pump motor, a welding mold and a hydraulic power device. A welding workbench is provided on the surface of the machine body. The main control circuit board, the oil pump motor and the hydraulic power device are all arranged in the machine body. The oil pump motor is electrically connected to the main control circuit board. The welding mold is arranged on the workbench. The hydraulic power device is connected to both ends of the welding mold for transmission. The hydraulic power device includes a hydraulic cylinder and two sets of transmission arms. The oil pump motor drives the hydraulic cylinder to work. One end of the two sets of transmission arms is connected to the hydraulic cylinder. The transmission arms are away from the hydraulic cylinder. One end extends to the welding workbench and is connected to the welding mold transmission. The hydraulic cylinder can drive two sets of transmission arms to move horizontally. After the transmission arms move horizontally, they push the welding mold to close the mold. A support frame is provided at the edge of the welding workbench. A lower positioning roller, an upper positioning roller, a movable slider and a spring are provided in the support frame. A guide groove is provided on the inner wall of the support frame. The movable slider is slidably provided in the guide groove. The upper positioning roller is rotatably provided in the movable slider horizontally. The lower positioning roller is rotatably provided in the support frame horizontally. The spring is provided between the movable slider and the support frame.

[0008] Furthermore, the transmission arm is composed of a movable connecting plate, a movable push block and a top column, the top column is arranged between the movable connecting plate and the movable push block, the movable push block is slidably connected to the surface of the welding workbench, the movable connecting arm and the fixed connecting arm are respectively connected to the opposite ends of the movable push block and the fixed push block, the hydraulic cylinder is horizontally arranged in the machine body, the end of the movable connecting arm away from the movable push block is fixedly connected to the telescopic rod of the hydraulic cylinder, the end of the fixed connecting arm away from the fixed push block is fixedly connected to the end of the hydraulic cylinder away from the movable connecting arm, and the opposite surfaces of the movable push block and the fixed push block are both connected to the welding mold.

[0009] Furthermore, a balancing link, a balancing rocker and a balancer seat are provided between the movable connecting arm and the fixed connecting arm. The balancer is arranged on the bottom surface of the welding workbench. The middle part of the balancing rocker is connected to the balancer seat through a rotating shaft. The balancing link is rotatably arranged at both ends of the balancing rocker. The two balancing links are rotatably connected to the two movable connecting plates respectively.

[0010] Furthermore, the surfaces of the lower positioning roller and the upper positioning roller are both provided with arc-shaped positioning arc surfaces that are concave toward the axial direction.

[0011] Furthermore, a protective cover is provided above the welding workbench, the edge of the protective cover is connected to the machine body through a hinge, and a transparent observation window and an opening and closing handle are provided on the surface of the protective cover.

[0012] Furthermore, the main control circuit board is also electrically connected to a control panel and control buttons, and both the control panel and the control buttons extend to the surface of the body.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: a lower positioning roller and an upper positioning roller are provided. When welding is performed, the movable slider is first lifted upward, and then the metal wire is extended into the welding mold, and the metal wire is placed on the lower positioning roller. After the movable slider is released, under the action of the spring, the upper positioning roller approaches the metal wire and clamps the surface of the metal wire together with the lower positioning roller. The upper positioning roller and the lower positioning roller clamp can limit the position of the metal wire. After the metal wires at both ends are clamped by the upper positioning roller and the lower positioning roller, they can be automatically aligned to prevent the position of the metal wire from shifting, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the hydraulic power device in the utility model;

[0016] Figure 3 Schematic diagram of the support frame in the present invention;

[0017] Numbers in the figure: 1-machine body, 2-welding mold, 3-welding workbench, 4-hydraulic power unit, 401-hydraulic cylinder, 402-movable connecting plate, 403-movable push block, 404-top column, 405-balancer seat, 406-balancing connecting rod, 407-balancing rocker, 5-protective cover, 6-observation window, 7-opening and closing handle, 8-control panel, 9-control buttons, 10-support frame, 11-upper positioning roller, 12-movable slider, 13-spring, 14-lower positioning roller, 15-positioning arc surface, 16-metal wire. DETAILED DESCRIPTION

[0018] 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.

[0019] The following combination Figure 1-Figure 3 A hydraulic cold welding machine of the utility model is described in detail:

[0020] A hydraulic cold welding machine includes a body 1, a main control circuit board, an oil pump motor, a welding mold 2 and a hydraulic power unit 4. A welding workbench 3 is provided on the surface of the body 1. The main control circuit board, the oil pump motor and the hydraulic power unit 4 are all arranged in the body 1. The oil pump motor is electrically connected to the main control circuit board. The welding mold 2 is arranged on the workbench. The hydraulic power unit 4 is transmission-connected to both ends of the welding mold 2. A protective cover 5 is provided above the welding workbench 3. The edge of the protective cover 5 is connected to the body 1 by a hinge. A transparent observation window 6 and an opening and closing handle 7 are provided on the surface of the protective cover 5. The main control circuit board is also electrically connected to a control panel 8 and a control button 9. The control panel 8 and the control button 9 both extend to the surface of the body 1.

[0021] The hydraulic power device 4 includes a hydraulic cylinder 401 and two sets of transmission arms. The oil pump motor drives the hydraulic cylinder 401 to work. One end of the two sets of transmission arms is connected to the hydraulic cylinder 401. The transmission arm extends to the welding workbench 3 at one end away from the hydraulic cylinder 401 and is connected to the welding mold 2. The hydraulic cylinder 401 can drive the two sets of transmission arms to move horizontally. After the transmission arm moves horizontally, it pushes the welding mold 2 to close the mold. A support frame 10 is provided at the edge of the welding workbench 3. A lower positioning roller 14, an upper positioning roller 11, a movable slider 12 and a spring 13 are provided in the support frame 10. The inner wall of the support frame 10 is provided with a There is a guide chute, a movable slider 12 is slidably arranged in the guide chute, an upper positioning roller 11 is rotatably arranged horizontally in the movable slider 12, a lower positioning roller 14 is rotatably arranged horizontally in the support frame 10, a spring 13 is arranged between the movable slider 12 and the support frame 10, and the surfaces of the lower positioning roller 14 and the upper positioning roller 11 are both provided with a positioning arc surface 15 that is concave in the axial direction and is in the shape of a circular arc. Since the cross section of the metal wire 16 is circular, the positioning arc surface 15 of the two lower positioning rollers 14 and the upper positioning roller 11 can make the metal wire 16 automatically move to the middle between the lower positioning roller 14 and the upper positioning roller 11 after being clamped, such as Figure 3 As stated.

[0022] The transmission force arm is composed of a movable connecting plate 402, a movable push block 403 and a top column 404. The top column 404 is arranged between the movable connecting plate 402 and the movable push block 403. The movable push block 403 is slidably connected to the surface of the welding workbench 3. The movable connecting arm and the fixed connecting arm are respectively connected to the ends of the movable push block 403 and the fixed push block opposite to each other. The hydraulic cylinder 401 is horizontally arranged in the body 1. The end of the movable connecting arm away from the movable push block 403 is fixedly connected to the telescopic rod of the hydraulic cylinder 401, and the end of the fixed connecting arm away from the fixed push block is fixedly connected to the end of the hydraulic cylinder 401 away from the movable connecting arm. The opposite surfaces of the movable push block 403 and the fixed push block are both connected to the welding mold 2. A balancing link 406, a balancing rocker 407 and a balancer seat 405 are arranged between the movable connecting arm and the fixed connecting arm. The balancer is arranged on the bottom surface of the welding workbench 3. The middle part of the balancing rocker 407 is connected to the balancer seat 405 through a rotating shaft. The balancing link 406 is rotatably arranged at both ends of the balancing rocker 407. The two balancing links 406 are rotatably connected to the two movable connecting plates 402 respectively. The oil pump motor shrinks the telescopic rod of the hydraulic cylinder 401 and drives the movable connecting plate 402 and the movable push block 403 to approach each other. The movable push block 403 pushes the welding mold 2 to close the mold. The welding mold 2 pushes the two metal wires 16 to approach each other and squeeze them, so that the two metal wires 16 are connected as one under pressure.

[0023] A hydraulic cold welding machine of this embodiment is provided with a lower positioning roller 14 and an upper positioning roller 11. When welding, the movable slider 12 is first lifted upward, and then the metal wire 16 is extended into the welding mold 2 and the metal wire 16 is placed on the lower positioning roller 14. After the movable slider 12 is released, under the action of the spring 13, the upper positioning roller 11 approaches the metal wire 16 and clamps the surface of the metal wire 16 together with the lower positioning roller 14. The upper positioning roller 11 and the lower positioning roller 14 can limit the position of the metal wire 16, and the metal wires 16 at both ends are clamped by the upper positioning roller 11. After the positioning roller 11 and the lower positioning roller 14 are clamped, they can be automatically aligned to prevent the position of the metal wire 16 from being offset, making it more convenient to use. During the welding process, each time the welding mold 2 is closed, the metal wire 16 will move a certain distance into the welding mold 2. Since the upper positioning roller 11 and the lower positioning roller 14 are rotatably arranged in the movable slider 12 and the support frame 10 respectively, when the metal wire 16 moves into the welding mold 2, the upper positioning roller 11 and the lower positioning roller 14 will be driven to rotate, which will not affect the normal feeding movement of the metal wire 16 during the welding process.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hydraulic cold welding machine, comprising a machine body, a main control circuit board, an oil pump motor, a welding mold, and a hydraulic power unit. A welding workbench is provided on the surface of the machine body. The main control circuit board, the oil pump motor, and the hydraulic power unit are all disposed within the machine body. The oil pump motor is electrically connected to the main control circuit board. The welding mold is disposed on the workbench. The hydraulic power unit is transmission-connected to both ends of the welding mold. The machine body is characterized in that: The hydraulic power device includes a hydraulic cylinder and two sets of transmission arms. The oil pump motor drives the hydraulic cylinder to work. One end of the two sets of transmission arms is connected to the hydraulic cylinder. The transmission arm extends to the welding workbench away from the end of the hydraulic cylinder and is connected to the welding mold transmission. The hydraulic cylinder can drive the two sets of transmission arms to move horizontally. After the transmission arm moves horizontally, it pushes the welding mold to close the mold. A support frame is provided at the edge of the welding workbench. A lower positioning roller, an upper positioning roller, a movable slider and a spring are provided in the support frame. A guide groove is provided on the inner wall of the support frame. The movable slider is slidably set in the guide groove. The upper positioning roller is rotatably set horizontally in the movable slider. The lower positioning roller is rotatably set horizontally in the support frame. The spring is set between the movable slider and the support frame.

2. A hydraulic cold welding machine according to claim 1, characterized in that: The transmission force arm is composed of a movable connecting plate, a movable pushing block and a top column. The top column is arranged between the movable connecting plate and the movable pushing block. The movable pushing block is slidably connected to the surface of the welding workbench. The movable connecting arm and the fixed connecting arm are respectively connected to the ends opposite to the movable pushing block and the fixed pushing block. The hydraulic cylinder is horizontally arranged in the machine body. The end of the movable connecting arm away from the movable pushing block is fixedly connected to the telescopic rod of the hydraulic cylinder, and the end of the fixed connecting arm away from the fixed pushing block is fixedly connected to the end of the hydraulic cylinder away from the movable connecting arm. The opposite surfaces of the movable pushing block and the fixed pushing block are both connected to the welding mold.

3. A hydraulic cold welding machine according to claim 2, characterized in that: A balancing link, a balancing rocker and a balancer seat are arranged between the movable connecting arm and the fixed connecting arm. The balancer is arranged on the bottom surface of the welding workbench. The middle part of the balancing rocker is connected to the balancer seat through a rotating shaft. The balancing link is rotatably arranged at both ends of the balancing rocker. The two balancing links are rotatably connected to the two movable connecting plates respectively.

4. A hydraulic cold welding machine according to any one of claims 1 to 3, characterized in that: The surfaces of the lower positioning roller and the upper positioning roller are both provided with positioning arc surfaces which are concave toward the axis and are in the shape of an arc.

5. A hydraulic cold welding machine according to any one of claims 1 to 3, characterized in that: A protective cover is provided above the welding workbench, the edge of the protective cover is connected to the machine body through a hinge, and a transparent observation window and an opening and closing handle are provided on the surface of the protective cover.

6. A hydraulic cold welding machine according to any one of claims 1 to 3, characterized in that: The main control circuit board is also electrically connected to a control panel and control buttons, and both the control panel and the control buttons extend to the surface of the machine body.

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