Automatic press-fitting mechanism for pin bushes

Abstract

The automatic pin bush press-fitting mechanism comprises a workbench and a stand column, the upper end of the stand column is connected with a transverse plate with the end provided with a press-down air cylinder, the output end of the press-down air cylinder is downwards connected with a press-down template, the upper portion of the workbench is provided with a base, the base is connected with a guide component, and the upper portion of the guide component is connected with a press-fitting table in a sliding mode. A positioning column is fixedly connected to the center of the upper portion of the base and comprises a fixing seat fixedly connected with the base and a supporting end extending upwards to the upper portion of the through hole and capable of supporting the pin bush, and the press-fitting table further comprises a limiting hole located in one side of the supporting end. The limiting hole is used for containing the driving end cover, and the driving end cover is clamped by two clamping parts oppositely arranged on the two sides of the limiting hole. According to the press-fitting device, the mounting hole of the driving end cover can be prevented from being damaged in the press-fitting process, the positioning accuracy of the pin sleeve and the pin hole of the driving end cover is improved, the labor intensity of workers is reduced, meanwhile, potential safety hazards are prevented, and the press-fitting efficiency is improved by automatically pressing the pin sleeve through the pressing air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of starter press-fitting, in particular to an automatic pin sleeve press-fitting mechanism. Background Art

[0002] The pin sleeve is a component that is pressed onto the drive end cover of the starter to cooperate with shaft parts such as the pin shaft. In the production process of the starter assembly, pressing the pin sleeve onto the drive end cover is the last step of the starter assembly. After pressing, the starter assembly is packed. At present, there is no dedicated pin sleeve pressing machine in the process of pressing the drive end cover and the pin sleeve of the starter assembly. Generally, the pin sleeve is simply pressed into the drive end cover by hammering manually. The press-fitting positioning of the pin sleeve during press-fitting mainly relies on the mounting hole of the drive end cover to position it. After positioning, the pin sleeve is pressed into the drive end cover.

[0003] However, when the pin sleeve is press-fitted using the above method, there are some problems in the press-fitting process: on the one hand, the mounting hole of the drive end cover is used for press-fitting positioning. When the pin sleeve is press-fitted to the drive end cover, the drive end cover and the mounting hole are subjected to force, which may damage the mounting hole of the drive end cover, making it impossible to subsequently assemble the drive end cover; on the other hand, when manually taking the entire starter assembly and hammering the pin sleeve, the labor intensity of the workers is relatively high, which affects the press-fitting efficiency, and in addition, during the hammering and pressing process, it is easy to hit the workers' hands by manual hammering, posing a major safety hazard. Utility Model Content

[0004] In order to solve the technical problems in the prior art that the mounting hole of the drive end cover may be damaged, making the drive end cover unable to be subsequently assembled, the labor intensity is high and the pressing efficiency is low when manually taking the entire starter assembly and hammering the pin sleeve, and there are great safety hazards in manual hammering, the utility model provides the following technical solutions.

[0005] The utility model discloses an automatic pressing mechanism for a pin sleeve, comprising a workbench and a column located at the upper part of the workbench, the upper end of the column is connected to a horizontal plate with a pressing cylinder at the end, the output end of the pressing cylinder is downwardly connected to a pressing template, the upper part of the workbench is provided with a base below the pressing template, the base is connected to a guide component and the upper part of the guide component is slidably connected to a pressing table with a through hole at the center position, the upper center position of the base is fixedly connected to a positioning column, the positioning column comprises a fixing seat fixedly connected to the base and a supporting end extending upward to the upper part of the through hole and capable of supporting the pin sleeve, the pressing table also comprises a limiting hole located on one side of the supporting end, the limiting hole is used for placing a driving end cover and the driving end cover is clamped by two clamping components arranged opposite to each other on both sides of the limiting hole.

[0006] As a further technical solution, the clamping component includes a clamping cylinder fixed on both sides of the limiting hole and a clamping block connected to the output end of the clamping cylinder and facing the direction of the limiting hole.

[0007] As a further technical solution, the guide component includes a guide column fixedly connected to the base and a guide sleeve fixedly connected to the press table, and the lower end of the guide sleeve is fixedly connected to a spring located on the periphery of the guide column and fixedly connected to the base.

[0008] As a further technical solution, the end of the guide column located above the press-fitting table is provided with a threaded end, and the threaded end is threadedly connected to a limiting bolt.

[0009] As a further technical solution, the outer diameter of the positioning column is smaller than the inner diameter of the through hole, and the outer diameter of the supporting end is smaller than the inner diameter of the pin sleeve.

[0010] As a further technical solution, the shape of the lower portion of the pressing template matches the shape of the driving end cover so as to avoid causing damage to the driving end cover during the pressing process.

[0011] The beneficial effect of the utility model is that the drive end cover can be placed on the limiting hole of the press-fitting table, and the drive end cover is clamped and fixed by the clamping component, and then the pin hole of the drive end cover is hung on the pin sleeve at the upper end of the positioning column, which can prevent the installation hole of the drive end cover from being damaged during the press-fitting process, and at the same time improve the positioning accuracy of the pin sleeve and the pin hole of the drive end cover. During press-fitting, it is only necessary to place the drive end cover and the pin sleeve in the correct position, and then the downward pressure cylinder will automatically press the pin sleeve, without the need for manual hammering of the pin sleeve, reducing the labor intensity of workers while preventing safety hazards, and using the downward pressure cylinder to press the pin sleeve to improve the press-fitting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the automatic press-fitting mechanism of the pin sleeve of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the press-fitting platform of the automatic press-fitting mechanism for the pin sleeve of the utility model;

[0014] Figure 3 This is a schematic diagram of the press-fitting platform of the automatic press-fitting mechanism for the pin sleeve of the utility model from another perspective;

[0015] Figure 4 It is a schematic diagram of the positioning column structure of the automatic press-fit mechanism of the pin sleeve of the utility model;

[0016] In the figure: 1-workbench; 101-column; 102-cross plate; 2-pressing cylinder; 201-pressing template; 3-base; 4-guide component; 401-guide column; 402-guide sleeve; 403-spring; 404-threaded end; 405-limiting bolt; 5-pressing table; 501-limiting hole; 502-through hole; 6-clamping component; 601-clamping cylinder; 602-clamping block; 7-positioning column; 701-fixed seat; 702-support end; 8-pin sleeve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower" and "both sides" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0019] like Figure 1 and Figure 2 As shown, the utility model is an automatic pin sleeve pressing mechanism, comprising a workbench 1 and a column 101 located on the upper part of the workbench 1, the upper end of the column 101 is connected to a horizontal plate 2, and the end of the horizontal plate 2 away from the column 1 is provided with a downward pressing cylinder 2, and the output end of the downward pressing cylinder 2 is downwardly connected to a downward pressing template 201, and the shape of the lower part of the downward pressing template 201 matches the shape of the driving end cover, so as not to cause damage to the driving end cover during the process of pressing the driving end cover. Under the pressure of the downward pressing cylinder 2, the downward pressing template 201 presses the driving end cover downward, so that the pin sleeve is pressed into the pin hole of the driving end cover.

[0020] In a preferred embodiment, a base 3 is provided below the lower pressing plate 201, and the base 3 is fixed on the upper part of the workbench 1. The base 3 is connected to a guide component 4. A press-fitting table 5 having a through hole 502 at the center is slidably connected to the upper part of the guide component 4, and the press-fitting table 5 can move up and down along the guide component 4 to approach or move away from the base 3. A positioning column 7 is fixedly connected to the center of the upper part of the base 3, and the positioning column 7 includes a fixing seat 701 fixedly connected to the base 3. The positioning column 7 extends upward to the upper part of the through hole 502. The upper part of the positioning column 7 is a support end 702 that can support the pin sleeve 8. The outer diameter of the support end 702 is smaller than the outer diameter of the positioning column 7 and the inner diameter of the through hole 502, and the inner diameter of the through hole 502 is larger than the outer diameter of the pin sleeve 8, so that the pin sleeve 8 can move freely up and down on the outer periphery of the support end 702, so that the pin sleeve 8 can be pressed into the pin hole of the drive end cover. It should be known that the outer diameter of the positioning column 7 is smaller than the inner diameter of the through hole 502 , and the outer diameter of the supporting end 702 is smaller than the inner diameter of the pin sleeve 8 .

[0021] In a preferred embodiment, the press-fitting table 5 further includes a limiting hole 501 located on one side of the supporting end 702, the limiting hole 501 can be inserted into the starter assembly, the limiting hole 501 is used to place the starter assembly and the drive end cover, and the drive end cover is clamped by two clamping components 6 arranged opposite to each other on both sides of the limiting hole 501. The clamping components 6 include a clamping cylinder 601 fixed on both sides of the limiting hole 501 and a clamping block 602 connected to the output end of the clamping cylinder 601 and facing the direction of the limiting hole 501. After the starter assembly is placed in the limiting hole 501, the clamping cylinder 601 is started to drive the two clamping blocks 602 to clamp and fix the drive end cover from opposite sides.

[0022] In a preferred embodiment, the guide component 4 includes a guide column 401 fixedly connected to the base 3, and also includes a guide sleeve 402 fixedly connected to the lower part of the press-fitting platform 5, and the press-fitting platform 5 moves up and down along the axis of the guide column 401 along with the guide sleeve 402. A spring 403 is fixedly connected to the lower end of the guide sleeve 402, and the lower end of the spring 403 is fixedly connected to the base 3, and the spring 403 is located in the peripheral direction of the guide column 401. When the lower pressing plate 201 presses down the driving end cover, the press-fitting platform 5 descends along with the driving end cover, and the pin sleeve 8 on the outer periphery of the support end 702 is pressed into the pin hole of the driving end cover.

[0023] In a preferred embodiment, a threaded end 404 is provided at the end of the guide column 401 located above the press-fitting table 5, and the threaded end 404 is threadedly connected to a limiting bolt 405. The limiting bolt 405 can prevent the press-fitting table 5 from detaching under the rebound force of the spring 403, and the limiting bolt 405 can move up and down on the outer periphery of the threaded end 404 to adjust the upper and lower distances between the pin sleeve 8 and the driving end cover.

[0024] When the utility model is in use, the worker puts the pin sleeve 8 into the outer periphery of the support end 702 at the upper end of the positioning column 7, and then puts the starter assembly into the limiting hole 501, so that the drive end cover overlaps the upper part of the limiting hole 501, and the pin hole of the drive end cover is inserted into the pin sleeve 8, and the clamping component 6 is started, so that the two clamping plates 602 clamp the drive end cover; then the pressing cylinder 2 is started, and the pressing template 201 moves down to the force-bearing position of the drive end cover, so that the drive end cover descends, and the press-fitting platform 5 descends with the drive end cover, and the pin sleeve 8 on the outer periphery of the support end 702 is pressed into the pin hole of the drive end cover. After a short delay, the pressing cylinder 2 is reset, and the rebound force of the spring 403 on the outer periphery of the guide rod 401 after being compressed causes the press-fitting platform 5 to return to the position limited by the limiting bolt 404, and continue the next press-fitting.

[0025] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. An automatic pin sleeve press-fitting mechanism, comprising a workbench (1) and a column (101) located on the upper part of the workbench (1), wherein the upper end of the column (101) is connected to a horizontal plate (102) with a downward pressure cylinder (2) at the end thereof, and the output end of the downward pressure cylinder (2) is downwardly connected to a downward pressure template (201), characterized in that: The upper part of the workbench (1) is located below the lower pressing plate (201) and is provided with a base (3); the base (3) is connected to a guide component (4) and the upper part of the guide component (4) is slidably connected to a pressing table (5) having a through hole (502) at the center; a positioning column (7) is fixedly connected to the center position of the upper part of the base (3); the positioning column (7) includes a fixing seat (701) fixedly connected to the base (3) and a supporting end (702) extending upward to the upper part of the through hole (502) and capable of supporting a pin sleeve (8); the pressing table (5) also includes a limiting hole (501) located on one side of the supporting end (702); the limiting hole (501) is used to place a driving end cover and the driving end cover is clamped by two clamping components (6) arranged opposite to each other on both sides of the limiting hole (501).

2. The automatic press-fit mechanism for the pin sleeve according to claim 1 is characterized in that: The clamping component (6) comprises a clamping cylinder (601) fixed on both sides of the limiting hole (501) and a clamping block (602) connected to the output end of the clamping cylinder (601) and facing the direction of the limiting hole (501).

3. The automatic press-fit mechanism for the pin sleeve according to claim 1 is characterized in that: The guide component (4) comprises a guide column (401) fixedly connected to the base (3) and a guide sleeve (402) fixedly connected to the press-fitting platform (5); the lower end of the guide sleeve (402) is fixedly connected to a spring (403) located on the periphery of the guide column (401) and fixedly connected to the base (3).

4. The automatic press-fit mechanism for the pin sleeve according to claim 3 is characterized in that: The end of the guide column (401) located above the press-fitting platform (5) is provided with a threaded end (404), and the threaded end (404) is threadedly connected to a limiting bolt (405).

5. The pin sleeve automatic press-fitting mechanism according to claim 1 is characterized in that: The outer diameter of the positioning column (7) is smaller than the inner diameter of the through hole (502), and the outer diameter of the supporting end (702) is smaller than the inner diameter of the pin sleeve (8).

6. The automatic press-fit mechanism for the pin sleeve according to claim 1 is characterized in that: The shape of the lower portion of the pressing template (201) matches the shape of the driving end cover, so that the driving end cover is not damaged during the pressing process.

Images