Piston press-fitting equipment

Abstract

The utility model discloses piston press-fitting equipment which comprises a press-fitting assembly and a guide assembly located below the press-fitting assembly. Through the arrangement and cooperation of the press-fitting assembly and the guide assembly, automatic piston press-fitting is achieved through the equipment, press-fitting operation on pistons can be rapidly and stably completed, and the production efficiency is greatly improved; the product consistency can be improved, and the difference and volatility of products can be reduced; the guide assembly comprises a guide mechanism for applying guide acting force to the bottom of the piston and a guide driving part for driving the guide mechanism to abut against the piston; the guide mechanism comprises a guide pin abutting against the bottom of the piston and applying guide acting force to the piston and an elastic piece. The elastic piece is matched with the guide pin and drives the guide pin to release elastic acting force towards the direction of the piston; the guide pin directly abuts against the bottom of the piston, a clear guide path is provided for the piston, deviation and inclination in the press-fitting process are avoided as much as possible, and therefore the press-fitting precision is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of industrial manufacturing, and more specifically, to a piston pressing device. Background Art

[0002] In the automobile manufacturing and maintenance industry, the performance of the braking system is directly related to the safety of the vehicle and the comfort of the driver. The brake caliper is an important component of the braking system, and the quality of the piston press-fitting inside it directly affects the braking effect and the service life of the brake.

[0003] Traditional piston pressing methods often rely on manual operation or simple mechanical devices, which have problems such as low pressing accuracy, high labor intensity, low efficiency and unstable pressing quality. In addition, manual operation is prone to introduce human errors, increasing uncertainty and risk in the production process.

[0004] Therefore, it is particularly important to develop a device that can automatically, accurately and efficiently complete the press-fitting of the brake caliper piston. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a piston pressing device which has a simple structure, a reasonable design and can automatically, accurately and efficiently complete the piston pressing.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A piston press-fitting device comprises a press-fitting assembly and a guide assembly located below the press-fitting assembly; the press-fitting assembly comprises a press-fitting mechanism for applying a press-fitting force to the piston and a press-fitting cylinder driving the press-fitting mechanism to perform press-fitting work; the guide assembly comprises a guide mechanism for applying a guide force to the bottom of the piston and a guide drive portion driving the guide mechanism to abut against the piston; the guide mechanism comprises a guide pin and an elastic member abutting against the bottom of the piston to apply a guide force thereto; the elastic member cooperates with the guide pin and drives it to release the elastic force in the direction of the piston.

[0008] Furthermore, the guide mechanism includes a guide mounting plate, a guide column and a guide movable block; the guide column is arranged on the guide mounting plate, the guide movable block is slidably connected to the guide column, and the guide pin is arranged on the guide movable block; the elastic member is a spring, the spring is sleeved on the guide column, and the two ends of the spring are respectively abutted against the guide mounting plate and the guide movable block.

[0009] Furthermore, the press-fitting mechanism includes a press-fitting mounting plate, a press-fitting head and a rotating motor; the press-fitting mounting plate moves up and down driven by the press-fitting cylinder, and the rotating motor is fixedly arranged on the press-fitting mounting plate; the press-fitting head is connected to the output shaft of the rotating motor.

[0010] Furthermore, the guide pin is rotatably arranged on the guide movable block; the axial direction of the guide pin is parallel to the axial direction of the press-fitting head and the axial direction of the output shaft of the rotating motor.

[0011] Furthermore, it includes a table panel and a mounting frame arranged on the table panel; a workpiece conveying track is also arranged on the table panel, the workpiece conveying track is arranged on one side of the mounting frame, and a tooling for conveying workpieces is arranged on the workpiece conveying track; the pressing head and the rotating motor are located above the workpiece conveying track and the tooling; the guide driving part includes a horizontal driving part that drives the guide mounting plate to move horizontally and a vertical driving part that drives the guide mounting plate to move vertically.

[0012] Furthermore, the vertical driving part includes a vertical driving cylinder, which is fixed on the mounting frame; the guiding mechanism includes a mounting seat, and the piston rod of the vertical driving cylinder is connected to the mounting seat and drives it to move vertically; the horizontal driving part includes a horizontal driving cylinder, which is arranged on the mounting seat; the guide mounting plate is movably arranged on the mounting seat through the cooperation of the slider and the slide rail; the piston rod of the horizontal driving cylinder is connected to the guide mounting plate and drives it to move toward or away from the tooling.

[0013] Furthermore, the guide mechanism also includes a guide mounting bracket arranged on the guide mounting plate; a vertically arranged slide rail is arranged on the guide mounting bracket, and a slider cooperating with the slide rail is arranged on the guide movable block; a blocking block is also arranged on the top of the guide mounting bracket, and the blocking block is located on the movable path of the slider arranged on the guide movable block.

[0014] Furthermore, the press-fitting cylinder is fixed on the mounting frame; the press-fitting mounting plate is movably arranged on the mounting frame through the cooperation of the slider and the slide rail, the piston rod of the press-fitting cylinder is connected to the press-fitting mounting plate, and the press-fitting mounting plate moves vertically driven by the press-fitting cylinder.

[0015] Furthermore, it also includes a piston clamping part, which includes a piston claw, and the piston claw is fixed to the mounting frame through a clamping mounting plate; the piston claw is located between the press-fitting assembly and the guide assembly, and is located above the tooling; the piston clamping part also includes a supporting plate and a supporting cylinder; the supporting cylinder is fixed to the clamping mounting plate; the supporting plate is connected to the piston rod of the supporting cylinder; the piston claw is fixed to the upper surface of the clamping mounting plate; the supporting cylinder is fixed to the lower surface of the clamping mounting plate, and drives the supporting plate to move horizontally so that it can be below the piston claw.

[0016] Furthermore, a left-right symmetrical stabilizing bracket is provided on the mounting frame, and the pressing mechanism is located between the two stabilizing brackets; the stabilizing bracket is arranged horizontally, and a stabilizing cylinder is arranged on the stabilizing bracket, and the stabilizing cylinder is located above the workpiece conveying track and the tooling for conveying the workpiece; the piston rod of the stabilizing cylinder is arranged vertically and works, and it abuts against the workpiece on the tooling to exert a stabilizing force. Beneficial Effects

[0017] In the utility model, through the setting and cooperation of the press-fitting assembly and the guide assembly, the equipment can realize automated piston press-fitting, can quickly and stably complete the press-fitting operation of the piston, and greatly improve production efficiency; it can also improve product consistency and help reduce product differences and fluctuations.

[0018] In the utility model, accurate positioning and stable guiding of the piston during the press-fitting process are achieved through the provision of a guide assembly; the guide pin directly abuts against the bottom of the piston, providing it with a clear guide path, avoiding displacement and tilting during the press-fitting process as much as possible, thereby significantly improving the accuracy of the press-fitting; the use of elastic parts enables the guide pin to flexibly abut the surface of the piston, and also makes the fit between the press-fitting mechanism and the piston closer; the elastic part can not only play a role in stably guiding the piston, but also avoid hard contact between the guide pin and the piston to cause damage to both of them as much as possible, and also help to reduce vibration and impact during the piston press-fitting process.

[0019] In the utility model, the guide post serves as a sliding track for the guide movable block, ensuring the linearity and stability of the guide movable block during movement, thereby avoiding press-fitting errors caused by offset or shaking as much as possible.

[0020] In the utility model, a spring is used as an elastic member, and it is sleeved on the guide column so that the direction of the elastic force of the elastic member is limited, so that the elastic force of the spring can be released to the guide pin more evenly and stably, thereby exerting an appropriate guiding force on the piston; at the same time, the elastic characteristics of the spring can also absorb the impact and vibration during the pressing process to a certain extent, thereby protecting the piston.

[0021] In the utility model, the rotation function in the pressing process is realized through the cooperation of the pressing head and the rotating motor, so that the piston rotates under the drive of the pressing head and the rotating motor during the pressing, and then the piston is pressed down in a more stable and uniform posture to improve the pressing effect; and, in the assembly process of some brake calipers, the piston needs to pass through the sealing ring when pressed into the caliper body. If the piston is pressed vertically, it is possible to damage the sealing ring or cause the sealing ring to deform or displace in the vertical direction. With the addition of the rotating action, the piston can minimize the impact of the sealing ring during pressing; at the same time, when the piston is pressed down and there is a slight tilt, the piston can also be returned to the original position during the pressing process by rotation, thereby improving the stability of the piston pressing.

[0022] In the utility model, the guide pin is rotatably arranged on the guide movable block, so that the guide pin can rotate with the rotation of the piston during the press-fitting process, reducing the friction between the guide pin and the piston and reducing the possibility of damage to both.

[0023] In the utility model, the axial direction of the guide pin is parallel to the axial direction of the press fitting head and the axial direction of the output shaft of the rotating motor. This parallel setting also helps to maintain coaxiality during the press fitting process and reduce the press fitting error caused by angular deviation.

[0024] In the utility model, the equipment is composed of a table panel, a mounting frame, a workpiece conveying track, a tooling and other structures to realize automated workpiece conveying and pressing, thereby greatly improving production efficiency and automation.

[0025] In the utility model, when the piston is pressed, the guide pin first needs to be under the piston, and then pass through the caliper body of the brake caliper to abut against the bottom of the piston, and then guide the piston to perform the press-fitting work; through the setting of the horizontal drive part, the guide pin can be evaded when the tooling conveys the caliper body to avoid interference.

[0026] In the utility model, accurate control of the press-fitting position and depth is achieved through the cooperation of the vertical drive cylinder and the horizontal drive cylinder, which helps to reduce errors in the press-fitting process and improve the accuracy and consistency of the press-fitting.

[0027] In the utility model, the stability of the guide movable block and the guide pin in the vertical direction is ensured through the cooperation between the slider and the slide rail, the deviation caused by vibration or impact is reduced, and the accuracy and reliability of press-fitting are improved.

[0028] In the utility model, the blocking block has a limiting effect. When the guide movable block moves to a certain position, the slider will contact the blocking block to prevent it from moving further. This design effectively prevents the press-fitting errors caused by excessive movement of the guide movable block driven by the elastic member.

[0029] In the utility model, the press-fitting installation plate is movably arranged on the installation frame through the cooperation of the slider and the slide rail. This design ensures the stability of the press-fitting action in the vertical direction.

[0030] In the utility model, the piston to be pressed can be sent to the piston clamp manually or by a robot and grasped by it; then the equipment automatically completes the pressing of the piston through the cooperation between the various components without the need for human intervention, which not only improves production efficiency but also reduces the labor intensity and safety risks of operators.

[0031] In the utility model, by setting the support plate and the support cylinder, when a manual or mechanical arm sends the piston to be pressed to the piston clamp, the support cylinder can drive the support plate to move horizontally under the piston clamp, providing a stable support platform for the piston; so as to improve the convenience and stability of the piston clamp grasping the piston.

[0032] In the utility model, the stabilizing bracket can effectively stabilize the workpiece and provide additional stability for the entire piston press-fitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of the entire utility model.

[0034] Figure 2 It is a structural diagram of the other side of the utility model as a whole.

[0035] Figure 3 This is a structural diagram of the components on the mounting frame.

[0036] Figure 4 This is a structural diagram of the other side of the mounting frame.

[0037] Figure 5 This is an enlarged view of the piston clamping part.

[0038] Figure 6 A structural diagram of the oriented component.

[0039] Figure 7 This is a structural diagram of the piston.

[0040] Numbers in the figure:

[0041] 1. Press-fit assembly; 2. Guide assembly; 3. Piston; 4. Table; 5. Mounting frame; 6. Workpiece conveying track; 7. Tooling; 8. Piston clamping part; 9. Clamp body; 11. Press-fit mechanism; 12. Press-fit cylinder; 13. Press-fit mounting plate; 14. Press-fit head; 15. Rotating motor; 21. Guide mechanism; 22. Guide drive part; 23. Guide pin; 24. Elastic member; 25. Guide mounting plate; 26. Guide column; 27. Guide movable block; 28. Mounting seat; 29. ​​Guide mounting bracket; 30. Blocking block; 31. Fitting part; 32. Fitting space; 51. Stabilizing bracket; 52. Stabilizing cylinder; 81. Piston clamp; 82. Clamping mounting plate; 83. Supporting pallet; 84. Supporting cylinder; 221. Vertical driving cylinder; 222. Horizontal driving cylinder. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific descriptions of the present invention, and their purpose is to allow those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limiting the present invention.

[0043] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0045] like Figure 1-7As shown, a piston press-fitting device comprises a press-fitting assembly 1 and a guide assembly 2 located below the press-fitting assembly 1; the press-fitting assembly 1 comprises a press-fitting mechanism 11 for applying a press-fitting force to the piston 3 and a press-fitting cylinder 12 driving the press-fitting mechanism 11 to perform press-fitting work; the guide assembly 2 comprises a guide mechanism 21 for applying a guiding force to the bottom of the piston 3 and a guide driving part 22 driving the guide mechanism 21 to abut against the piston 3; through the arrangement and cooperation of the press-fitting assembly 1 and the guide assembly 2, the device can realize automatic press-fitting of the piston 3, can quickly and stably complete the press-fitting operation of the piston 3, and greatly improve the production efficiency; it can also improve product consistency and help reduce product differences and fluctuations.

[0046] In the utility model, the guide assembly 2 realizes the precise positioning and stable guiding of the piston 3 during the press-fitting process; the guide mechanism 21 includes a guide pin 23 and an elastic member 24 that abuts against the bottom of the piston 3 to apply a guiding force thereto; the elastic member 24 cooperates with the guide pin 23 and drives it to release the elastic force in the direction of the piston 3; the guide pin 23 directly abuts against the bottom of the piston 3, providing it with a clear guiding path, avoiding displacement and tilting during the press-fitting process as much as possible, thereby significantly improving the press-fitting accuracy; the use of the elastic member 24 enables the guide pin 23 to flexibly abut the surface of the piston 3, and also makes the press-fitting mechanism 11 and the piston 3 cooperate more closely; the elastic member 24 can not only play a role in stably guiding the piston 3, but also avoid the hard contact between the guide pin 23 and the piston 3 as much as possible to cause damage to both of them, and also helps to reduce vibration and impact during the press-fitting process of the piston 3.

[0047] In the present invention, the guide mechanism 21 includes a guide mounting plate 25, a guide column 26 and a guide movable block 27; the guide column 26 is arranged on the guide mounting plate 25, the guide movable block 27 is slidably connected with the guide column 26, and the guide pin 23 is arranged on the guide movable block 27; the guide column 26 serves as a sliding track for the guide movable block 27, ensuring the linearity and stability of the guide movable block 27 during movement, thereby avoiding the press-fitting error caused by offset or shaking as much as possible; the elastic member 24 adopts a spring, the spring is sleeved on the guide column 26, and the two ends of the spring are respectively abutted against the guide mounting plate 25 and the guide movable block 27; the spring is used as the elastic member 24, and it is sleeved on the guide column 26 so that the direction of the elastic force of the elastic member 24 is limited, so that the elastic force of the spring can be released to the guide pin 23 more evenly and stably, thereby applying an appropriate guiding force to the piston 3; at the same time, the elastic characteristics of the spring can also absorb the impact and vibration during the press-fitting process to a certain extent, thereby protecting the piston 3.

[0048] In the present invention, the press-fitting mechanism 11 includes a press-fitting mounting plate 13, a press-fitting head 14 and a rotating motor 15; the press-fitting mounting plate 13 moves up and down driven by the press-fitting cylinder 12, and the rotating motor 15 is fixedly arranged on the press-fitting mounting plate 13; the press-fitting head 14 is connected to the output shaft of the rotating motor 15; through the cooperation of the press-fitting head 14 and the rotating motor 15, the rotation function in the press-fitting process is realized, so that the piston 3 rotates under the drive of the press-fitting head 14 and the rotating motor 15 during press-fitting, thereby making the piston 3 more stable and uniform. The piston 3 is pressed down in a uniform posture to improve the press-fitting effect; and, in the assembly process of some brake calipers, the piston 3 needs to pass through the sealing ring when being pressed into the caliper body 9. If the piston 3 is pressed vertically, it is possible to cause damage to the sealing ring or cause the sealing ring to deform or displace in the vertical direction. With the addition of the rotating action, the piston 3 can minimize the impact of the sealing ring during press-fitting. At the same time, when the piston 3 is pressed down and there is a slight tilt, the piston 3 can also be rotated to achieve the return to the center during the press-fitting process, thereby improving the stability of the press-fitting of the piston 3.

[0049] In the present invention, the guide pin 23 is rotatably arranged on the guide movable block 27, so that the guide pin 23 can rotate with the rotation of the piston 3 during the press-fitting process, reducing the friction between the guide pin 23 and the piston 3 and reducing the possibility of damage to both.

[0050] In this embodiment, the axial direction of the guide pin 23 is parallel to the axial direction of the press-fitting head 14 and the axial direction of the output shaft of the rotating motor 15. This parallel setting also helps to maintain the coaxiality during the press-fitting process and reduce the press-fitting error caused by angular deviation; in this embodiment, the guide column 26, guide pin 23, press-fitting head 14 and rotating motor 15 are all arranged vertically to achieve stable assembly of the piston 3.

[0051] It is worth mentioning that a downwardly protruding mating portion 31 is provided at the bottom of the piston 3; a mating space 32 mating with the guide pin 23 is provided in the mating portion 31; thereby achieving stable mating between the piston 3 and the guide pin 23 when the piston 3 is press-fitted; generally, mutually matching mating structures, such as mating protrusions, mating recesses, etc., are also provided on the contact surfaces of the press-fitting head 14 and the piston 3 to achieve efficient and stable transmission of the rotational force.

[0052] Generally, the guide pin 23 is rotatably arranged on the guide movable block 27 through a bearing; in some other ways, other devices or structures can also be used to achieve this.

[0053] In the utility model, it also includes a table panel 4 and a mounting frame 5 arranged on the table panel 4; a workpiece conveying track 6 is also arranged on the table panel 4, the workpiece conveying track 6 is arranged on one side of the mounting frame 5, and a tool 7 for conveying the workpiece is arranged on the workpiece conveying track 6; the pressing head 14 and the rotating motor 15 are located above the workpiece conveying track 6 and the tool 7; the equipment is composed of structures such as the table panel 4, the mounting frame 5, the workpiece conveying track 6 and the tool 7 to realize automated workpiece conveying and pressing, thereby greatly improving production efficiency and automation.

[0054] In this embodiment, the guide driving part 22 includes a horizontal driving part for driving the guide mounting plate 25 to move horizontally and a vertical driving part for driving the guide mounting plate 25 to move vertically; because the guide pin 23 first needs to be under the piston 3 when the piston 3 is pressed, and then pass through the caliper body 9 of the brake caliper to abut against the bottom of the piston 3, and then guide the piston 3 to perform the pressing work; through the setting of the horizontal driving part, the guide pin 23 can evade when the tooling 7 transports the caliper body 9 to avoid interference.

[0055] In the utility model, the vertical driving part includes a vertical driving cylinder 221, which is fixed on the mounting frame 5; the guiding mechanism 21 includes a mounting seat 28, and the piston 3 rod of the vertical driving cylinder 221 is connected to the mounting seat 28 and drives it to move vertically; the horizontal driving part includes a horizontal driving cylinder 222, which is arranged on the mounting seat 28; the guide mounting plate 25 is movably arranged on the mounting seat 28 through the cooperation of the slider and the slide rail; the piston 3 rod of the horizontal driving cylinder 222 is connected to the guide mounting plate 25 and drives it to move toward or away from the tooling 7; the cooperation of the vertical driving cylinder 221 and the horizontal driving cylinder 222 can achieve precise control of the pressing position and depth, which helps to reduce errors in the pressing process and improve the accuracy and consistency of the pressing.

[0056] In the utility model, the guide mechanism 21 also includes a guide mounting bracket 29 arranged on the guide mounting plate 25; a vertically arranged slide rail is arranged on the guide mounting bracket 29, and a slider cooperating with the slide rail is arranged on the guide movable block 27; through the cooperation between the slider and the slide rail, the stability of the guide movable block 27 and the guide pin 23 in the vertical direction is ensured, the deviation caused by vibration or impact is reduced, and the accuracy and reliability of the press-fitting are improved.

[0057] In this embodiment, a blocking block 30 is also provided at the top of the guide mounting bracket 29, and the blocking block 30 is located on the movable path of the slider provided on the guide movable block 27; the blocking block 30 has a limiting function, and when the guide movable block 27 moves to a certain position, the slider will contact the blocking block 30, thereby preventing it from continuing to move; this design effectively prevents the press-fitting errors caused by excessive movement of the guide movable block 27 driven by the elastic member 24.

[0058] In the utility model, the press-fitting cylinder 12 is fixed on the mounting frame 5; the press-fitting mounting plate 13 is movably arranged on the mounting frame 5 through the cooperation of the slider and the slide rail, the piston 3 rod of the press-fitting cylinder 12 is connected to the press-fitting mounting plate 13, and the press-fitting mounting plate 13 moves vertically under the drive of the press-fitting cylinder 12; the press-fitting mounting plate 13 is movably arranged on the mounting frame 5 through the cooperation of the slider and the slide rail, and this design ensures the stability of the press-fitting action in the vertical direction.

[0059] In the present invention, it also includes a piston clamping part 8, which includes a piston clamping claw 81, and the piston clamping claw 81 is fixed to the mounting frame 5 through a clamping mounting plate 82; the piston clamping claw 81 is between the press-fitting component 1 and the guide component 2, and is located above the tooling 7; the piston clamping part 8 also includes a supporting plate 83 and a supporting cylinder 84; the supporting cylinder 84 is fixed to the clamping mounting plate 82; the supporting plate 83 is connected to the piston 3 rod of the supporting cylinder 84; the piston clamping claw 81 is fixed to the upper surface of the clamping mounting plate 82; the supporting cylinder 84 is fixed to the lower surface of the clamping mounting plate 82, and drives the supporting plate 83 to move horizontally, so that it can be in the piston Below the clamp 81; the piston 3 to be pressed can be sent to the piston clamp 81 manually or by a robot and grasped by it; then the equipment automatically completes the press-fitting of the piston 3 through the cooperation between the various components without manual intervention, which not only improves the production efficiency but also reduces the labor intensity and safety risks of the operators; through the setting of the support plate 83 and the support cylinder 84, when the piston 3 to be pressed is sent to the piston clamp 81 by a manual or robot, the support cylinder 84 can drive the support plate 83 to move horizontally to the bottom of the piston clamp 81, providing a stable support platform for the piston 3; so as to improve the convenience and stability of the piston clamp 81 grasping the piston 3.

[0060] In the utility model, a left-right symmetrical stabilizing bracket 51 is provided on the mounting frame 5, and the pressing mechanism 11 is located between the two stabilizing brackets 51; the stabilizing bracket 51 is horizontally arranged, and a stabilizing cylinder 52 is provided on the stabilizing bracket 51, and the stabilizing cylinder 52 is located above the workpiece conveying track 6 and the tooling 7 for conveying the workpiece; the piston 3 rod of the stabilizing cylinder 52 is vertically arranged and works, and it abuts against the clamp body 9 on the tooling 7 to exert a stabilizing force thereon; the stabilizing cylinder 52 can effectively stabilize the clamp body 9 to provide additional stability for the entire piston 3 pressing process.

[0061] It is worth noting that other technical solutions of the present invention belong to the prior art and will not be described in detail.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A piston press-fitting device, characterized in that: It includes a press-fitting assembly and a guide assembly located below the press-fitting assembly; The press-fitting assembly comprises a press-fitting mechanism for applying a press-fitting force to the piston and a press-fitting cylinder for driving the press-fitting mechanism to perform the press-fitting work; The guide assembly includes a guide mechanism for applying a guiding force to the bottom of the piston and a guide drive part for driving the guide mechanism to abut against the piston; The guide mechanism comprises a guide pin and an elastic member which abuts against the bottom of the piston to exert a guiding force thereon; the elastic member cooperates with the guide pin and drives it to release the elastic force in the direction of the piston.

2. A piston press-fitting device according to claim 1, characterized in that: The guide mechanism includes a guide mounting plate, a guide column and a guide movable block; the guide column is arranged on the guide mounting plate, the guide movable block is slidably connected to the guide column, and the guide pin is arranged on the guide movable block; the elastic member is a spring, the spring is sleeved on the guide column, and the two ends of the spring are respectively abutted against the guide mounting plate and the guide movable block.

3. A piston press-fitting device according to claim 2, characterized in that: The press-fitting mechanism comprises a press-fitting mounting plate, a press-fitting head and a rotating motor; the press-fitting mounting plate moves up and down driven by the press-fitting cylinder, the rotating motor is fixedly arranged on the press-fitting mounting plate; the press-fitting head is connected to the output shaft of the rotating motor.

4. A piston press-fitting device according to claim 3, characterized in that: The guide pin is rotatably arranged on the guide movable block; the axial direction of the guide pin is parallel to the axial direction of the press-fitting head and the axial direction of the output shaft of the rotating motor.

5. A piston press-fitting device according to claim 4, characterized in that: It includes a table panel and a mounting frame arranged on the table panel; a workpiece conveying track is also arranged on the table panel, the workpiece conveying track is arranged on one side of the mounting frame, and a tool for conveying workpieces is arranged on the workpiece conveying track; the press head and the rotating motor are located above the workpiece conveying track and the tool; The guide driving part comprises a horizontal driving part for driving the guide mounting plate to move horizontally and a vertical driving part for driving the guide mounting plate to move vertically.

6. A piston press-fitting device according to claim 5, characterized in that: The vertical driving part includes a vertical driving cylinder, which is fixed on the mounting frame; the guide mechanism includes a mounting seat, and the piston rod of the vertical driving cylinder is connected to the mounting seat and drives the mounting seat to move vertically; The horizontal driving part includes a horizontal driving cylinder, which is arranged on a mounting seat; The guide mounting plate is movably arranged on the mounting seat through the cooperation of the slider and the slide rail; the piston rod of the horizontal driving cylinder is connected with the guide mounting plate and drives it to move toward or away from the tooling.

7. A piston press-fitting device according to claim 6, characterized in that: The guide mechanism also includes a guide mounting bracket arranged on the guide mounting plate; a vertically arranged slide rail is arranged on the guide mounting bracket, and a slider cooperating with the slide rail is arranged on the guide movable block; a blocking block is also arranged on the top of the guide mounting bracket, and the blocking block is located on the movable path of the slider arranged on the guide movable block.

8. The piston press-fitting device according to claim 5, characterized in that: The press-fitting cylinder is fixed on the mounting frame; the press-fitting mounting plate is movably arranged on the mounting frame through the cooperation of the slider and the slide rail, the piston rod of the press-fitting cylinder is connected to the press-fitting mounting plate, and the press-fitting mounting plate moves vertically under the drive of the press-fitting cylinder.

9. The piston press-fitting device according to claim 5, characterized in that: It also includes a piston clamping part, which includes a piston clamping claw, and the piston clamping claw is fixed to the mounting frame through a clamping mounting plate; the piston clamping claw is located between the press-fitting assembly and the guide assembly, and is located above the tooling; The piston clamping part also includes a supporting plate and a supporting cylinder; the supporting cylinder is fixed on the clamping mounting plate; the supporting plate is connected to the piston rod of the supporting cylinder; The piston clamp is fixed on the upper surface of the clamping mounting plate; the supporting cylinder is fixed on the lower surface of the clamping mounting plate and drives the supporting plate to move horizontally so that it can be located below the piston clamp.

10. The piston press-fitting device according to claim 5, characterized in that: The mounting frame is provided with a left-right symmetrical stabilizing bracket, and the pressing mechanism is located between the two stabilizing brackets; the stabilizing bracket is arranged horizontally, and a stabilizing cylinder is arranged on the stabilizing bracket, and the stabilizing cylinder is located above the workpiece conveying track and the tooling for conveying the workpiece; the piston rod of the stabilizing cylinder is arranged vertically and works, and it abuts against the workpiece on the tooling to exert a stabilizing force.

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