Pin side face press-fitting device

Abstract

The utility model discloses a pin side face press-fitting device, and belongs to the field of mechanical assembly. The pin side face press-fitting device comprises a lifting part and a press-fitting part, the lifting part comprises a lifting air cylinder and a mounting plate, the mounting plate is arranged above the lifting air cylinder, the press-fitting part is arranged on the mounting plate, the press-fitting part comprises a pin feeding assembly and a press-fitting assembly, and a driving rod is arranged on one side of the press-fitting assembly. The driving rod can control the press-fitting assembly to move horizontally, the pin feeding assembly is arranged on the outer side of the press-fitting assembly, and the tail end of the pin feeding assembly communicates with a working part of the press-fitting assembly. The pin press-fitting device is designed for pin press-fitting in the horizontal direction, the gas-liquid pressure cylinder is adopted as a pressure output source, the linear sliding rail is matched, and the perpendicularity of a press pin is guaranteed. The whole structure can be lifted to adjust the pin press-fitting position, and various pin press-fitting requirements are met.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical assembly, and specifically relates to a pin side press-fitting device. Background Art

[0002] Pin press-fitting is an assembly method for fixing pins or screws on workpieces, and is usually used in cases where high-strength connections or a large number of repetitions are required, such as in the fields of automobile manufacturing, furniture manufacturing, electronic equipment manufacturing, etc. The use of the pin press-fitting method can greatly improve production efficiency and product quality.

[0003] In the prior art, most of the pin press-fitting equipment uses a vertical press-fitting method, and there are few devices for press-fitting on the side surface of the workpiece. Moreover, replacing the vertical press-fitting with the horizontal side press-fitting is not just a change in the direction of the press-fitting equipment. Different design ideas are required for pin feeding, the reset of the pressure rod, etc.

[0004] Especially on the motor assembly line, when installing side pins on the motor housing, manual pin pressing or hand-held pin pressing equipment is often used. This results in the inability to guarantee various technical parameters such as the press-fitting depth, press-fitting force, and perpendicularity of the pin press-fitting of the pin. It is easy to cause the motor housing to be repaired due to unqualified pin installation, directly affecting production efficiency and increasing production costs. And because manual press-fitting is used, due to the special press-fitting direction, it is also easy for the operator to be unable to perform the press-fitting work in the correct posture during side press-fitting, which may cause production accidents and there are certain safety hazards.

[0005] Therefore, a new design that is more suitable for pin press-fitting in the horizontal direction on a horizontal plane is needed. Summary of the Utility Model

[0006] Aiming at the above problems existing in the prior art, the purpose of the utility model is to provide a pin side press-fitting device.

[0007] To solve the above problems, the technical solutions adopted by the utility model are as follows:

[0008] A pin side press-fitting device includes a lifting part and a press-fitting part. The lifting part includes a lifting cylinder and a mounting plate. The mounting plate is arranged above the lifting cylinder. The press-fitting part is arranged on the mounting plate. The press-fitting part includes a pin feeding assembly and a press-fitting assembly. A driving rod is arranged on one side of the press-fitting assembly. The driving rod can control the press-fitting assembly to move horizontally. The pin feeding assembly is arranged outside the press-fitting assembly. The end of the pin feeding assembly is communicated with the working part of the press-fitting assembly.

[0009] The press-fitting assembly includes a push block and a press-fitting block, the push block and the press-fitting block are movably connected through a connecting rod, a return spring is arranged on the periphery of the connecting rod, a slide rail is arranged on the mounting plate, the push block and the press-fitting block are both installed on the slide rail, and the driving rod is connected to the push block.

[0010] A pressing pin rod is arranged on the push block and the press-fitting block, the pressing pin rod passes through the push block and the press-fitting block, the pressing pin rod is fixedly connected to the push block, the pressing pin rod is movably connected to the mounting block, and a pressing pin groove is arranged at the position corresponding to the pressing pin rod of the press-fitting block.

[0011] The pin pressing groove is communicated with the pin delivery assembly.

[0012] A limiting block is arranged between the pushing block and the position where the pressing pin rod is arranged on the mounting block.

[0013] The end of the push block pressure pin rod is provided with a pressure sensor.

[0014] The end of the push block pressure pin rod is provided with a displacement sensor.

[0015] The pin delivery component is a pneumatic blowing pipeline.

[0016] A detection sensor is arranged at the end of the pin delivery assembly.

[0017] The power source of the driving rod is a gas-liquid booster cylinder.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model is designed for pin press-fitting in the horizontal direction, and adopts a gas-liquid booster cylinder as the output source of pressure, and cooperates with a linear slide rail to ensure the verticality of the press pin. The overall structure can be raised and lowered to adjust the position of the pin press-fitting, taking into account the needs of various pin press-fitting, and the entire press-fitting mechanism is equipped with a variety of sensors, which can detect the depth and force of the pin press-fitting during the press-fitting process, and can also adjust the limit block to control the depth of the press-fitting according to the actual press-fitting needs, and is compatible with pins of various press-fitting specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the press-fit assembly;

[0022] Figure 3 It is a schematic diagram of the pin delivery assembly structure;

[0023] In the figure: 1, lifting cylinder; 2, mounting plate; 3, slide rail; 4, driving rod; 5, pushing block; 6, mounting block; 7, blowing pipeline; 8, pin pressing groove; 9, pin pressing rod; 10, connecting rod; 11, return spring; 12, detection sensor; 13, displacement sensor; 14, pressure sensor; 15, limit block. Detailed implementation manners

[0024] The present utility model will be further described below in conjunction with specific embodiments.

[0025] As Figure 1 shown, the present utility model mainly includes a lifting part and a pressing part, wherein the pressing part is integrally arranged above the lifting part.

[0026] The lifting part mainly includes a lifting cylinder 1 and a mounting plate 2 arranged on the lifting cylinder 1. The pressing part is fixedly installed on the mounting plate 2. By controlling the up and down movement of the lifting cylinder 1, the specific height of the pressing part can be adjusted.

[0027] The pressing part as a whole is also as Figure 1 shown. The pressing part is mainly divided into a pressing assembly and a pin feeding assembly. The pressing assembly mainly includes a pushing block 5 and a mounting block 6. Two slide rails 3 are arranged above the mounting plate 2. The pushing block 5 and the mounting block 6 are mounted on the slide rails 3 and can move along the direction of the slide rails.

[0028] The pushing block 5 and the mounting block 6 can be generally divided into upper and lower layers. The bottom of the lower layer of the pushing block 5 and the mounting block 6 is connected to the slide rail. The lower part between the pushing block 5 and the mounting block 6 is connected by a connecting rod 10. A return spring 11 is arranged around the outer periphery of the connecting rod 10 in the gap between the pushing block 5 and the mounting block 6. One end of the connecting rod 10 is fixedly arranged on the pushing block 5, and the other end passes through the mounting block 6 and a stop block is arranged at the end to prevent the mounting block 6 from disengaging from the end of the connecting rod 10.

[0029] The main effect achieved by this structure is that when pushing from the side of the pushing block 5 towards the side of the mounting block 6 along the slide rail 3, the pushing block 5 and the mounting block 6 will move simultaneously under the action of the return spring 11. When the mounting block 6 moves to the end of the slide rail or contacts the workpiece to be pressed, the mounting block 6 is blocked, but the pushing block 5 can continue to push and compress the return spring 11 until it cannot be pushed or a stop signal is received and then stops. When the pushing block 5 moves in the reverse direction for resetting, the return spring 11 extends until the stop block at the end of the connecting rod 10 located at the end of the mounting block 6 is blocked by the mounting block 6, pulling the mounting block 6 to move. Another function of the return spring 11 is to always keep a preset distance between the pushing block 5 and the mounting block 6 in the unprocessed state to prevent hindering the feeding of the pin.

[0030] On the other side of the pushing block 5 is a driving rod 4 that drives the pressing and mounting assembly to move. The moving direction of the driving rod 4 is the same as the setting direction of the slide rail 3, and it can push the pushing block 5 along the direction of the slide rail 3 during operation. In this embodiment, the power source adopted by the driving rod 4 is a gas-liquid booster cylinder, which can provide stable power for the pressing assembly.

[0031] The upper parts of the pushing block 5 and the mounting block 6 are the parts for pressing the pin. Its external structure and internal structure are as Figure 1 and Figure 2 shown.

[0032] A pressing pin rod 9 that penetrates the two modules is arranged in the upper layers of the pushing block 5 and the mounting block 6. A pressing pin groove 8 for limiting the pin is arranged at the end of the pressing pin rod 9 corresponding to the mounting block 6. One end of the pressing pin rod 9 located at the pushing block 5 is fixedly connected to a stop block arranged on the pushing block 5. A displacement sensor 13 and a pressure sensor 14 are also arranged on this stop block. When the pressing pin rod 9 is stressed during pin pressing at the end of the mounting block 6, it can immediately detect the pressing depth and the pressing force.

[0033] One end of the pressing pin rod 9 located at the pushing block 5 is fixedly installed, while the pressing pin rod 9 can move freely along its own direction in the mounting block 6. At the gap between the upper layers of the pushing block 5 and the mounting block 6, that is, the part where the pressing pin rod 9 passes through the two modules, a limiting block 15 is arranged on its periphery. Half of the limiting block 15 is arranged on each of the pushing block 5 and the mounting block 6. The function of the limiting block 15 is to limit and adjust the maximum distance of the displacement of the pressing pin rod 9 in the mounting block 6. As Figure 2 shown, the limiting block 15 is in the state when the limiting blocks 15 come into contact with each other as the distance between the pushing block 5 and the mounting block 6 continuously decreases. At this time, the moving distance of the pressing pin rod 9 in the mounting block 6 has reached the preset depth. At this time, the displacement sensor 13 and the pressure sensor 14 send out data, and the driving rod 4 stops pushing and instead pulls the pushing block 5 back to the initial position.

[0034] The whole press-fitting process is that the driving rod 4 pushes the push block 5. At this time, the mounting block 6 is not blocked and moves toward the workpiece to be press-fitted under the action of the connecting rod 10 and the reset spring 11. When the mounting block 6 wants to contact the surface of the workpiece, the mounting block 6 is blocked and stops moving. At this time, the driving rod 4 continues to push the push block 5, and the gap between the push block 5 and the mounting block 6 is continuously reduced. At this time, the pressing pin rod 9 located on the upper layer of the push block 5 and the mounting block 6 moves at the same time, and the end of the pressing pin rod 9 located on the push block 5 is fixedly connected, so the part of the pressing pin rod 9 located inside the mounting block 6 moves along the direction of the pressing pin rod 9, and in this process, the rod head of the pressing pin rod 9 will support the pin set in the pressing pin groove 8 and press fit the surface of the workpiece. Until the limit block 15 contacts, at this time, the movement of the pressing pin rod 9 in the mounting block 6 reaches the preset value, and the data transmitted by the displacement sensor 13 and the pressure sensor 14 are used to determine whether it meets the press-fitting value, and then the driving rod 4 stops pushing the push block 5 and pulls the push block 5 in the opposite direction to reset.

[0035] In order to better realize the automation of press-fitting, a pin delivery assembly is arranged on the side of the press-fitting assembly. The main body of the pin delivery assembly is a blowing pipe 7 for conveying pins. The end of the blowing pipe 7 is arranged on the side of the press-fitting groove 8, and the end of the blowing pipe 7 is connected to the press-fitting groove 8. A detection sensor 12 is also arranged. When the pin in the blowing pipe 7 is blown to the predetermined position, the detection sensor 12 sends a signal, and the electric push rod on the side of the pin delivery assembly is started to send the pin in the blowing pipe 7 into the press-fitting groove 8, and the pin is pressed when the device is started.

[0036] The utility model is designed for pressing pins in the horizontal direction, ensuring the verticality, pressing force and pressing distance of the press-fit pins on the side of the workpiece, and realizing the standardization and automation of the press-fitting of the pins on the side.

Claims

1. A pin side press-fitting device, characterized in that: It includes a lifting part and a pressing part, the lifting part includes a lifting cylinder and a mounting plate, the mounting plate is arranged above the lifting cylinder, the pressing part is arranged on the mounting plate, the pressing part includes a pin delivery assembly and a pressing assembly, a driving rod is arranged on one side of the pressing assembly, the driving rod can control the pressing assembly to move horizontally, the pin delivery assembly is arranged on the outside of the pressing assembly, and the end of the pin delivery assembly is connected to the working part of the pressing assembly.

2. A pin side press-fitting device according to claim 1, characterized in that: The press-fitting assembly includes a push block and a press-fitting block, the push block and the press-fitting block are movably connected through a connecting rod, a return spring is arranged on the periphery of the connecting rod, a slide rail is arranged on the mounting plate, the push block and the press-fitting block are both installed on the slide rail, and the driving rod is connected to the push block.

3. A pin side press-fitting device according to claim 2, characterized in that: A pressing pin rod is arranged on the push block and the press-fitting block, the pressing pin rod passes through the push block and the press-fitting block, the pressing pin rod is fixedly connected to the push block, the pressing pin rod is movably connected to the mounting block, and a pressing pin groove is arranged at the position corresponding to the pressing pin rod of the press-fitting block.

4. A pin side press-fitting device according to claim 3, characterized in that: The pin pressing groove is communicated with the pin delivery assembly.

5. A pin side press-fitting device according to claim 3, characterized in that: A limiting block is arranged between the pushing block and the position where the pressing pin rod is arranged on the mounting block.

6. A pin side press-fitting device according to claim 3, characterized in that: The end of the push block pressure pin rod is provided with a pressure sensor.

7. A pin side press-fitting device according to claim 3, characterized in that: The end of the push block pressure pin rod is provided with a displacement sensor.

8. A pin side press-fitting device according to claim 1, characterized in that: The pin delivery component is a pneumatic blowing pipeline.

9. A pin side press-fitting device according to claim 8, characterized in that: A detection sensor is arranged at the end of the pin delivery assembly.

10. A pin side press-fitting device according to claim 1, characterized in that: The power source of the driving rod is a gas-liquid booster cylinder.

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