Variable-pitch pressing device for terminal welding

Abstract

The utility model discloses a variable-pitch pressing device for terminal welding. The variable-pitch pressing device comprises a bottom plate, the bearing plate is arranged on the bottom plate in an up-down lifting manner; the two supports are arranged on the bearing plate and located on the two sides of the lower die frame. Fixing blocks are arranged on the opposite sides of the two supports, and the pressing arms are arranged at the front ends of the fixing blocks; the sliding block is arranged on one side of the support in a sliding mode and located below the fixed block. The pushing assembly is arranged between the transplanting block and the fixed block, the pushing assembly comprises a sliding plate capable of moving front and back above the transplanting block through a driving part, and a chute is formed in the sliding plate; the upper end of the connecting rod is connected with the fixed block, and the lower end of the connecting rod is connected with the sliding block; the two driving parts are adopted to drive the two corresponding pressing arms to transversely move in the mode that the connecting rods slide along the inclined grooves, the width of a welding area reserved between the two pressing arms is adjustable, position movement is accurate and reliable, adaptability is good, and welding quality is high.

Description

Technical Field

[0001] The utility model relates to a variable pitch pressing device, in particular to a variable pitch pressing device for terminal welding. Background Art

[0002] An ultrasonic metal welding machine utilizes high-frequency vibration waves to be transmitted to the surfaces of two metals to be welded. Under pressurization, the two metal surfaces rub against each other to form a fusion between molecular layers. Its advantages are rapidity, energy conservation, high fusion strength, good electrical conductivity, no sparking, and close to cold-state processing.

[0003] Most existing ultrasonic metal welding machines directly drive to press the terminals by using cylinders during welding. However, in this way, the width of the welding area of the terminals cannot be adjusted, resulting in poor adaptability. There are also some that use two cylinders to directly drive the pressing blocks to approach each other to adjust the width of the welding area. However, when the cylinder pressure is too high, the sealing performance of the cylinder is poor, making the moving positions of the two pressing blocks inaccurate, resulting in inaccurate welding area positions, poor welding precision and quality, and unable to effectively meet the actual production and processing requirements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a variable pitch pressing device for terminal welding to overcome the deficiencies of the prior art, with adjustable width of the welding area of the terminals and high welding quality and precision.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a variable pitch pressing device for terminal welding, comprising:

[0006] A bottom plate;

[0007] A bearing plate, which is arranged on the bottom plate and can be lifted up and down;

[0008] Two supports, which are arranged on the bearing plate and are located on both sides of the lower die holder;

[0009] Fixed blocks, on the opposite sides of the two supports, there are fixed blocks, and the pressing arms are arranged at the front ends of the fixed blocks;

[0010] A sliding block, which is slidably arranged on one side of the support and is located below the fixed block;

[0011] A pushing component, which is arranged between the transplanting block and the fixed block. The pushing component includes a sliding plate that can move back and forth above the transplanting block through a driving component, and an inclined groove is arranged on the sliding plate;

[0012] A connecting rod, the upper end of the connecting rod is connected to the fixed block, the lower end is connected to the sliding block, and the middle part of the connecting rod is arranged in the inclined groove;

[0013] Among them, when the driving component drives the sliding plate to move forward, the connecting rod slides in the inclined groove through the sliding block, thereby driving the pressing arm connected to the connecting rod to move horizontally.

[0014] Furthermore, a plurality of lifting cylinders are provided on the bottom plate; the bearing plate is arranged on the bottom plate in a vertically liftable manner through the lifting cylinders; there are also a plurality of guide columns on the upper end of the bottom plate that are slidably connected to the bearing plate in a vertical direction.

[0015] Furthermore, the support is L-shaped, and one end of the support is arranged on the side surface of the bearing plate, and the other end extends upward above the bearing plate.

[0016] Furthermore, the inclined groove is arc-shaped.

[0017] Furthermore, the driving component is an electric cylinder.

[0018] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0019] The variable pitch pressing device for terminal welding of the present utility model has a compact overall structure. By using two driving components to drive two corresponding pressing arms to move horizontally through the sliding of the connecting rod along the inclined groove, the width of the welding area reserved between the two pressing arms can be adjusted. At the same time, such a moving position is accurate and reliable, ensuring the stable and reliable quality of ultrasonic welding, convenient and reliable operation, and good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solutions of the present utility model will be further described below in conjunction with the drawings:

[0021] Figure 1 It is the front view of an embodiment of the present utility model;

[0022] Figure 2 It is the structural schematic diagram of the variable pitch pressing mechanism in an embodiment of the present utility model;

[0023] Figure 3 For Figure 2 partial schematic diagram of;

[0024] Among them: bottom plate 1, bearing plate 2, support 3, fixed block 4, pressing arm 5, sliding block 6, driving component 7, sliding plate 8, connecting rod 9, lifting cylinder 20, guide column 21, inclined groove 80. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the protection scope of this application.

[0026] The present utility model provides a variable-spacing pressing device for terminal welding to solve the problem in the prior art that the width of the welding area of the terminal cannot be adjusted, resulting in poor adaptability.

[0027] For ease of understanding, the specific process in the embodiments of this application will be described below. Please refer to Figures 1 to 3 A variable-spacing pressing device for terminal welding in an embodiment of this application includes a bottom plate 1, a bearing plate 2, a support 3, a fixing block 4, a pressing arm 5, a sliding block 6, a pushing component, a sliding plate 8, and a connecting rod 9. The bearing plate 2 is arranged on the bottom plate 1 so as to be able to move up and down. Two supports 3 are arranged at both ends of the bearing plate 2. Fixing blocks 4 are respectively arranged on the opposite sides of the two supports 3. The pressing arm 5 is arranged at the front end of the fixing block 4. The two pressing arms 5 are used to perform the operation of pressing the terminal tightly under the drive of the bearing plate 2.

[0028] A slidable sliding block 6 is respectively arranged on one side of each support 3, and the sliding block 6 is located below the connected fixing block 4 and pressing arm 5. The pushing component is arranged between the sliding block 6 and the fixing block 4. The pushing component includes a sliding plate 8 that can move back and forth above the sliding block 6 through a driving member 7. An inclined groove 80 is arranged on the sliding plate. The upper end of the connecting rod 9 is connected to the fixing block 4, the lower end is connected to the sliding block 6, and the middle part of the connecting rod 9 is arranged in the inclined groove 80.

[0029] In this way, when the connecting rod 9 moves along the inclined groove 80, since the connecting rod 9 is connected to both the pressing arm 5 and the sliding block 6 at the same time, when the connecting rod 9 moves horizontally, it drives the pressing arm 5 to move horizontally synchronously. Correspondingly, the two pressing arms 5 can move closer to or away from each other synchronously, so as to leave a welding area for subsequent terminal welding. That is, the welding area is the distance between the two pressing arms 5. Thus, the purpose of adjustable width of the welding area is achieved by adjusting the distance between the two pressing arms 5.

[0030] Further, two lifting cylinders 20 are provided on the bottom plate 1, and the bearing plate 2 is arranged on the bottom plate 1 in a vertically movable manner through the lifting cylinders 20; a plurality of guide columns 21 are further provided on the bottom plate 1 and are slidably connected to the bearing plate 2 in a vertical direction; in this way, when the bearing plate 2 is driven by the bottom plate 1 and moves upward under the guiding action of the guide columns 21, all components can be synchronously driven to move upward.

[0031] Further, the support 3 is L-shaped, and one end of the support 3 is arranged on the side surface of the bearing plate 2, and the other end extends upward above the bearing plate 2.

[0032] Further, the inclined groove 80 is arc-shaped, so that when the connecting rod 9 moves horizontally, the corresponding horizontal distance can be adjusted, and this adjustment is such that when the connecting rod 9 moves closer to the inner side, the corresponding two pressing arms 5 approach synchronously; when the connecting rod 9 moves outward along the inclined groove 80, the corresponding two pressing arms 5 move away from each other.

[0033] Further, the driving component in this embodiment is an electric cylinder, which has good driving force, is stable, can perform high-precision control, has a fast response speed and conversion speed, can achieve stepless speed regulation, and can meet different working requirements.

[0034] The specific working process is as follows:

[0035] When the terminal and the wire harness are actually subjected to ultrasonic welding, they are located on the bearing seat between the two pressing arms 5; first, they are driven by the lifting cylinder 20 and driven by the guide columns 21 to drive all components on the bearing plate 2 to move upward, so that the two pressing arms 5 also move upward to above the terminal.

[0036] Then, the two electric cylinders synchronously drive the sliding plate 8 to move forward, and the sliding plate 8 drives the two connecting rods 9 to synchronously move along the inclined groove 80 to one side of the terminal. The connecting rods 9 are respectively connected to the pressing arms 5 and the sliding blocks. In this way, when the connecting rods slide driven by the sliding blocks, they synchronously drive the two pressing arms 5 to approach each other. When the two pressing arms 5 approach to the set position, the two electric cylinders stop working. At this time, the distance between the two pressing arms 5 is the reserved welding area, and the welding area at this time can be adjusted in real time, as long as the sliding plate is driven by the electric cylinder to move in different directions.

[0037] When the welding area is determined, the lifting cylinder 20 drives the bearing plate 2 to move downward. When the bearing plate 2 moves downward, it does not drive the two pressing arms 5 to move downward, and then the two pressing arms 5 press both ends of the terminal.

[0038] In summary, for the variable-spacing pressing device for terminal welding of the present utility model, two driving components 7 are adopted, that is, the pushing electric cylinder drives the two corresponding pressing arms 5 to move horizontally along the inclined groove through the connecting rod 9, thereby realizing the adjustability of the width of the welding area reserved between the two pressing arms. At the same time, such a moving position is accurate and reliable, ensuring the stable and reliable quality of ultrasonic welding and the convenience and reliability of operation.

[0039] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A variable pitch pressing device for terminal welding, characterized in that, Comprising: Base plate; Carrier plate, which is arranged on the base plate and can move up and down; Supports, two of the supports are arranged on the carrier plate and are located on both sides of the lower die carrier; Fixed blocks, fixed blocks are arranged on the opposite sides of the two supports, and pressing arms are arranged at the front ends of the fixed blocks; Slider, the slider is slidably arranged on one side of the support and is located below the fixed block; Pushing assembly, which is arranged between the transplanting block and the fixed block, the pushing assembly includes a sliding plate that can move back and forth above the transplanting block through a driving component, and an inclined groove is arranged on the sliding plate; Link rod, the upper end of the link rod is connected to the fixed block, the lower end is connected to the slider, and the middle part of the link rod is arranged in the inclined groove; Wherein, when the driving component drives the sliding plate to move forward, the link rod slides in the inclined groove through the slider, thereby driving the pressing arm connected to the link rod to move laterally.

2. The variable pitch pressing device for terminal welding according to claim 1, wherein: A plurality of lifting cylinders are arranged on the base plate; the carrier plate can move up and down on the base plate through the lifting cylinders; there are also a plurality of guide columns on the upper end of the base plate that can slide up and down connected to the carrier plate.

3. The variable pitch pressing device for terminal welding according to claim 1, wherein: The support is L-shaped, and one end of the support is arranged on the side surface of the carrier plate, and the other end extends upward above the carrier plate.

4. The variable pitch pressing device for terminal welding according to claim 1, characterized in that: The inclined groove is arc-shaped.

5. The variable pitch pressing device for terminal welding according to claim 1, characterized in that: The driving component is an electric cylinder.

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