Elastic pin assembly tool

Abstract

The utility model relates to an elastic pin assembly tool. The device comprises a positioning base used for positioning and placing the driving block and the main shaft; wherein the driving block is provided with a driving block axial through hole allowing the main shaft to penetrate through and a driving block radial through hole allowing the elastic pin to penetrate through, a flat cutting face is arranged at the tail end of the main shaft, and the main shaft is further provided with a main shaft radial through hole matched with the driving block radial through hole; the limiting mechanism comprises a limiting structure matched with the flattened surface so as to limit the rotation of the main shaft and enable the radial through hole of the driving block to be coaxial with the radial through hole of the main shaft; the telescopic end of the first telescopic mechanism and the main shaft are coaxially arranged so as to abut against the tail end of the main shaft; the telescopic end of the second telescopic mechanism and the elastic pin are coaxially arranged so as to abut against the elastic pin. The assembling cost of the elastic pin can be reduced, the assembling efficiency is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic pin assembly tooling, in particular to an elastic pin assembly tooling. Background Art

[0002] There are some problems in assembling the elastic pin on the main shaft of the existing valve position feedback switch. The main shaft to be installed needs to be pre-assembled with the drive block by the operator, and the elastic pin is used for fixed connection. However, during the assembly process, the mounting holes are not easy to align, and there is an interference fit between the drive block and the rotating shaft, which leads to low manual assembly efficiency and difficult installation process. Summary of the invention

[0003] To this end, the utility model provides an elastic pin assembly tool, which can reduce the cost of elastic pin assembly, improve assembly efficiency and reduce safety hazards.

[0004] In order to solve the above technical problems, the utility model provides an elastic pin assembly tool, which is used to assemble the driving block with the main shaft of the workpiece to be assembled through the elastic pin, comprising:

[0005] A positioning base, used for positioning and placing the driving block and the spindle; wherein the driving block is provided with an axial through hole of the driving block for the spindle to pass through and a radial through hole of the driving block for the elastic pin to pass through, the tail end of the spindle is provided with a flattened surface, and the spindle is also provided with a spindle radial through hole that matches the radial through hole of the driving block;

[0006] A limiting mechanism, comprising a limiting structure cooperating with the flattened surface to limit the rotation of the spindle and to make the radial through hole of the driving block coaxial with the radial through hole of the spindle;

[0007] A first telescopic mechanism, the telescopic end of which is coaxially arranged with the main shaft to abut against the rear end of the main shaft;

[0008] The second telescopic mechanism has a telescopic end coaxially arranged with the elastic pin to abut against the elastic pin.

[0009] In an embodiment of the present utility model, the positioning base includes a positioning groove matching the shape of the driving block and a limiting hole for placing the main shaft.

[0010] In one implementation of the present invention, the limiting hole is a blind hole.

[0011] In an embodiment of the present utility model, the limiting mechanism comprises a limit plate which can be raised and lowered, and the limit structure is constructed as a limit groove which is located on the limit plate and is engaged with the flattened surface.

[0012] In one embodiment of the utility model, the positioning base is vertically slidably connected to a guide column, and the limiting plate is connected to the guide column.

[0013] In one embodiment of the present utility model, the first telescopic mechanism includes a first cylinder arranged vertically and a first pressure head connected to the extension driving end of the first cylinder.

[0014] In one embodiment of the present utility model, the second telescopic mechanism includes a second cylinder arranged horizontally and a second pressure head connected to the extension driving end of the second cylinder.

[0015] In one embodiment of the present invention, it further includes a first L-shaped bracket, and the first cylinder is installed on the first L-shaped bracket.

[0016] In one embodiment of the present invention, a second L-shaped bracket is further included, and the second cylinder is installed on the second L-shaped bracket.

[0017] In one embodiment of the present invention, it further includes a bottom plate supported at the bottom of the positioning base, and the first L-shaped bracket and the second L-shaped bracket are both installed on the bottom plate.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses an elastic pin assembly tool, which adopts the cooperation of a positioning base, a limiting mechanism, and a first and a second telescopic mechanism to realize automatic pressing and fitting of the elastic pin into place, thereby improving production efficiency, reducing the scrap rate of the elastic pin and the driving block, and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the elastic pin assembly tool.

[0022] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure.

[0023] Figure 3 The utility model is a schematic cross-sectional structure diagram of the elastic pin assembly tool.

[0024] Description of the Figures in the Specification:

[0025] 100, driving block; 110, driving block radial through hole; 200, main shaft; 210, flattened surface; 220, axial through hole; 230, main shaft radial through hole; 300, elastic pin;

[0026] 1. Positioning base; 11. Positioning slot; 12. Limiting hole;

[0027] 2. Limiting mechanism; 21. Limiting plate; 22. Limiting groove; 23. Guide column;

[0028] 3. First telescopic mechanism; 31. First cylinder; 32. First pressure head;

[0029] 4. second telescopic mechanism; 41. second cylinder; 42. second pressure head;

[0030] 5. The first L-shaped bracket;

[0031] 6. Two L-shaped brackets;

[0032] 7. Base plate. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0034] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Reference Figures 1 to 3 As shown, an elastic pin assembly tool of the utility model is used to assemble the driving block 100 with the main shaft 200 of the workpiece to be assembled through the elastic pin 300, comprising:

[0038] A positioning base 1 is used to position and place the driving block 100 and the spindle 200; wherein the driving block 100 is provided with an axial through hole 220 of the driving block 100 for the spindle 200 to pass through and a radial through hole 110 of the driving block for the elastic pin 300 to pass through, a flattened surface 210 is provided at the tail end of the spindle 200, and the spindle 200 is also provided with a spindle radial through hole 230 that cooperates with the radial through hole 110 of the driving block;

[0039] The limiting mechanism 2 includes a limiting structure that cooperates with the flattened surface 210 to limit the rotation of the main shaft 200 and make the radial through hole 110 of the driving block coaxial with the radial through hole 230 of the main shaft;

[0040] A first telescopic mechanism 3, the telescopic end of which is coaxially arranged with the main shaft 200 to abut against the rear end of the main shaft 200;

[0041] The second telescopic mechanism 4 has a telescopic end coaxially arranged with the elastic pin 300 to abut against the elastic pin 300 .

[0042] In one embodiment, the positioning base 1 includes a positioning groove 11 matching the shape of the driving block 100 and a limiting hole 12 for placing the spindle 200. The design of the positioning groove 11 and the limiting hole 12 ensures that the driving block 100 and the spindle 200 can be accurately positioned during the assembly process, avoiding assembly errors caused by misalignment.

[0043] In one embodiment, the limiting hole 12 is a blind hole.

[0044] In one embodiment, the limiting mechanism 2 includes a limit plate 21 that can be raised and lowered, and the limiting structure is configured as a limit groove 22 located on the limit plate 21 and engaged with the flattened surface 210. The design of the engagement between the limit plate 21 and the flattened surface 210 ensures the coaxiality between the radial holes of the main shaft 200 and the driving block 100, improves the assembly accuracy, and prevents the main shaft 200 from rotating during the assembly process.

[0045] In one embodiment, the positioning base 1 is vertically slidably connected to a guide column 23 , and the limiting plate 21 is connected to the guide column 23 .

[0046] The guide column 23 is loosely matched with (the hole on) the positioning base 1 and can slide freely up and down.

[0047] In one embodiment, the first telescopic mechanism 3 includes a first cylinder 31 disposed vertically and a first pressing head 32 connected to an extension driving end of the first cylinder 31 .

[0048] In one embodiment, the second telescopic mechanism 4 includes a second cylinder 41 arranged horizontally and a second pressing head 42 connected to the extension driving end of the second cylinder 41 .

[0049] In one embodiment, a first L-shaped bracket 5 is further included, and the first cylinder 31 is installed on the first L-shaped bracket 5 .

[0050] In one embodiment, a second L-shaped bracket 6 is further included, and the second cylinder 41 is installed on the second L-shaped bracket 6 .

[0051] In one embodiment, it further includes a bottom plate 7 supported at the bottom of the positioning base 1 , and the first L-shaped bracket 5 and the second L-shaped bracket 6 are both installed on the bottom plate 7 .

[0052] The work is controlled by a common PLC and is provided with a start button.

[0053] Working principle: Place the driving block 100 into the positioning groove 11 of the positioning base 1, then pull up the limiting plate 21, and then put the spindle 200 into the limiting hole 12 of the positioning base 1, loosen the limiting plate 21 to make the flattened surface 210 at the tail end of the spindle 200 snap into the limiting groove 22 of the limiting plate 21, and finally put the elastic pin 300 into the hole of the driving block 100, and visually ensure that the elastic pin 300 is not skewed;

[0054] After placing the workpiece to be installed, press the start button with both hands and wait for 3-5 seconds to complete the press installation;

[0055] Through electrical control, the piston rod of the first cylinder 31 extends, overcomes the friction between the main shaft 200 and the driving block 100 (pre-set), presses the main shaft 200 to a specified height, and after waiting for 1-2 seconds, the piston rod of the second cylinder 41 extends, overcomes the friction between the elastic pin 300 and the driving block 100, and presses the elastic pin 300 into the driving block 100;

[0056] Pull up the limit plate 21 and take out the installed spindle 200 from bottom to top.

[0057] The tooling realizes automatic pressing of the elastic pin 300 into place through electrical control and manual feeding, thereby improving production efficiency and reducing the scrap rate of the elastic pin 300 and the drive block 100. The two-handed start button and delayed action design ensure that the worker's hands are away from the danger zone during operation, reducing safety hazards.

[0058] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An elastic pin assembly tool, used for assembling a driving block (100) with a main shaft (200) of a workpiece to be assembled via an elastic pin (300), characterized in that: include: A positioning base (1) for positioning and placing the driving block (100) and the main shaft (200); wherein the driving block (100) is provided with a driving block (100) axial through hole (220) for the main shaft (200) to pass through and a driving block radial through hole (110) for the elastic pin (300) to pass through, a flattened surface (210) is provided at the rear end of the main shaft (200), and the main shaft (200) is further provided with a main shaft radial through hole (230) that cooperates with the driving block radial through hole (110); A limiting mechanism (2), comprising a limiting structure cooperating with the flattened surface (210) to limit the rotation of the main shaft (200) and to make the radial through hole (110) of the driving block coaxial with the radial through hole (230) of the main shaft; A first telescopic mechanism (3), the telescopic end of which is coaxially arranged with the main shaft (200) so as to abut against the rear end of the main shaft (200); The second telescopic mechanism (4) has a telescopic end coaxially arranged with the elastic pin (300) so as to abut against the elastic pin (300).

2. The elastic pin assembly tool according to claim 1, characterized in that: The positioning base (1) comprises a positioning groove (11) matching the shape of the driving block (100) and a limiting hole (12) for placing the main shaft (200).

3. The elastic pin assembly tool according to claim 2, characterized in that: The limiting hole (12) is a blind hole.

4. The elastic pin assembly tool according to claim 1, characterized in that: The limiting mechanism (2) comprises a limit plate (21) that can be raised and lowered, and the limit structure is constructed as a limit groove (22) located on the limit plate (21) and engaged with the flattened surface (210).

5. The elastic pin assembly tool according to claim 4, characterized in that: The positioning base (1) is vertically slidably connected to a guide column (23), and the limiting plate (21) is connected to the guide column (23).

6. The elastic pin assembly tool according to claim 1, characterized in that: The first telescopic mechanism (3) comprises a first cylinder (31) arranged vertically and a first pressure head (32) connected to the extension drive end of the first cylinder (31).

7. The elastic pin assembly tool according to claim 6, characterized in that: The second telescopic mechanism (4) comprises a second cylinder (41) arranged horizontally and a second pressure head (42) connected to the extension drive end of the second cylinder (41).

8. The elastic pin assembly tool according to claim 7, characterized in that: It also comprises a first L-shaped bracket (5), and the first cylinder (31) is mounted on the first L-shaped bracket (5).

9. The elastic pin assembly tool according to claim 8, characterized in that: It also includes a second L-shaped bracket (6), and the second cylinder (41) is mounted on the second L-shaped bracket (6).

10. The elastic pin assembly tool according to claim 9, characterized in that: It also comprises a bottom plate (7) supported on the bottom of the positioning base (1), and the first L-shaped bracket (5) and the second L-shaped bracket (6) are both mounted on the bottom plate (7).

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