Connector elastic cylindrical pin mounting tool

Abstract

The utility model relates to the technical field of assembly tool, provide a kind of connector elastic cylindrical pin installation tool, including fixed platform, flexible pedestal is detachably arranged above the fixed platform, and pressure head is installed through support column above flexible pedestal;Base spring is set in flexible pedestal, plug is set through base spring, connecting shaft is installed plug tail end, flexible fender is sleeved with connecting shaft, and elastic cylindrical pin is set through flexible fender and connecting shaft;The pressure head includes clamping handle, and the clamping handle is fixed with sleeve through outer thread connection, and elastic sleeve is installed in fixed sleeve, and elastic sleeve tail end is set out of fixed sleeve, while through pin and clamping handle setting thimble, thimble tail end is located in elastic sleeve, and thimble and elastic sleeve between setting pressure head spring;Thimble and elastic cylindrical pin are coaxially arranged, and thimble diameter is greater than elastic cylindrical pin diameter, and the tool effectively solves the problem of difficult assembly of smaller elastic cylindrical pin, and improves assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of assembly tooling technology, specifically to a connector elastic cylindrical pin installation tooling. Background Technology

[0002] Cylindrical pins play an indispensable role in the positioning and fixing of some parts. Currently, there are two main ways to install elastic cylindrical pins: 1. Hold the elastic cylindrical pin and align it with the connecting pin hole, then gently tap it with a hammer until the elastic cylindrical pin initially enters the pin hole, and then forcefully hammer it into place; 2. Fix the elastic cylindrical pin to the mounting wire on the head of the pneumatic impact hammer, then visually align it with the pin hole, and use the impact force of the pneumatic impact hammer to drive the elastic cylindrical pin into the pin hole.

[0003] The above installation method is convenient and simple to process and install for normal-sized cylindrical pins. However, for fixing some smaller cylindrical pins, needle-nose pliers or tweezers are usually used for installation. Since cylindrical pins are mostly tight-fitting to prevent them from falling off, installation is more difficult. Utility Model Content

[0004] The purpose of this invention is to provide a connector elastic cylindrical pin installation fixture that can solve the problem of the difficulty in installing existing small cylindrical pins.

[0005] To achieve the above objectives, this utility model proposes a connector elastic cylindrical pin mounting fixture, including a fixed platform, on which a flexible base is disposed, and a pressure head is mounted above the flexible base via a support column; A base spring is installed inside the flexible base, a plug is installed through the base spring, a connecting shaft is installed at the end of the plug, a flexible stop cap is sleeved on the connecting shaft, and an elastic cylindrical pin is installed through the flexible stop cap and the connecting shaft. The pressure head includes a clamping handle, which is connected to a fixed sleeve via an external thread. An elastic sleeve is installed inside the fixed sleeve, with the end of the elastic sleeve extending out of the fixed sleeve. A pin is also installed through the elastic sleeve and the clamping handle, with the end of the pin located inside the elastic sleeve. A pressure head spring is installed between the pin and the elastic sleeve. The ejector pin and the elastic cylindrical pin are coaxially aligned, and the diameter of the ejector pin is larger than the diameter of the elastic cylindrical pin.

[0006] A further configuration is provided where a stop is provided at the end of the plug, and the width of the stop is greater than the inner diameter of the flexible base.

[0007] A further configuration is provided whereby the connecting shaft has a first circular hole, the flexible stop cap has a rectangular hole, and a cylindrical pin hole is provided on the flexible stop cap and perpendicular to the rectangular hole. The flexible stop cap is sleeved on the connecting shaft through the rectangular hole, and an elastic cylindrical pin is provided through the first circular hole and the cylindrical pin hole.

[0008] A further configuration is provided, wherein the flexible cap has an outer chamfer at one end near the flexible base, and the flexible base has an inner chamfer at one end near the flexible cap and located in the inner cavity.

[0009] Further configured, the ejector pin includes a needle seat and a needle post, the top of the fixed sleeve is provided with a stepped groove, and the elastic sleeve is provided with a sleeve seat.

[0010] A further configuration includes a spring between the sleeve and the needle seat, with the needle seat pressed against the inner wall of the clamp by the spring, and the sleeve pressed against the stepped groove by the spring.

[0011] A further configuration is provided, wherein the fixed platform includes a placement plate, a guide plate is fixedly installed on one side of the placement plate, and a positioning block is provided on the front side of the guide plate.

[0012] A further configuration is provided, wherein the guide plate is provided with a guide hole corresponding to the pressure head, the positioning block is provided with a positioning hole, and a flexible stop cap can be installed in the positioning hole.

[0013] A further configuration is provided, wherein a ring is provided on the outer side of the flexible base, and a mounting groove is provided corresponding to the ring and located on the fixed platform, and the flexible base is slidably mounted on the mounting groove through the ring.

[0014] A further configuration is provided, with a base below the fixed platform, the base having a T-shaped sliding groove, and the fixed platform being slidably mounted on the trapezoidal sliding groove via a trapezoidal slider. The beneficial effects of one or more of the above technical solutions: During installation, manually insert the elastic cylindrical pin into the round hole of the elastic sleeve. The elastic cylindrical pin will be magnetically attracted and will not fall off. Manually insert the parts to be assembled into the round holes of the fixed part. Move the pressure bed to lower the pressure head. The elastic sleeve on the pressure head, along with the elastic cylindrical pin, moves to the stop cap. Continue to move downwards. At this point, the elastic sleeve will stop and not advance further, pressing against the stop cap. The ejector pin will continue to move downwards, pressing the elastic cylindrical pin into place. Because the elastic pin is tightly fitted with the round holes of the stop cap and the plug, it will not be pulled back after being pressed in. After it is in place, lift the pressure bed handle. All the internal parts of the pressure head will be reset. Using this tooling effectively solves the problem of difficult assembly of small opening retaining rings and improves assembly efficiency. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the pressure head of this utility model.

[0018] Figure 3 This is a schematic diagram of the flexible base of this utility model.

[0019] Figure 4 for Figure 3 A schematic diagram of the explosion structure.

[0020] Figure 5 This is a schematic diagram of the structure of the elastic cylindrical pin of this utility model.

[0021] Figure 6 for Figure 5 Side view.

[0022] Figure 7 This is a schematic diagram of the flexible cap of this utility model.

[0023] In the diagram, 1 is a flexible stop cap; 11 is an outer chamfer; 12 is a rectangular hole; and 13 is a cylindrical pin hole. 2. Elastic cylindrical pin; 3. Base spring; 4. Flexible base; 41. Circular ring; 42. Stop block; 5. Plug; 51. Inner chamfer; 53. Coupling; 54. First round hole; 6. Pressure head; 601. Pressure head spring; 602. Fixing sleeve; 603. Elastic sleeve; 605. Ejector pin; 606. Pin seat; 607. Pin post; 608. Stepped groove; 609. Sleeve seat; 7. Fixed platform; 701. Guide plate; 702. Positioning block; 703. Placement plate; 704. Positioning hole; 705. Trapezoidal slider; 706. Trapezoidal groove; 8-pin fitting; 801 wrench.

[0024] 9 bases; 91 mounting slots. Detailed Implementation

[0025] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0026] Reference Figure 1 A connector elastic cylindrical pin mounting fixture includes a fixed platform 7, a flexible base 4 is provided above the fixed platform 7, the flexible base 4 can be made of plastic, and a pressure head 6 is installed above the flexible base 4 via a support column. Reference Figure 3 and Figure 4 A base spring 3 is installed inside the flexible base 4, and a plug 5 is installed through the base spring 3. A connecting shaft 53 is installed at the end of the plug 5. The connecting shaft 53 is sleeved with a flexible stop cap 1. The flexible stop cap 1 can be made of plastic. An elastic cylindrical pin 2 is installed through the flexible stop cap 1 and the connecting shaft 53. Reference Figure 2The pressure head 6 includes a clamp handle, which is connected to a fixed sleeve 602 via an external thread. An elastic sleeve 603 is installed inside the fixed sleeve 602. The end of the elastic sleeve 603 extends out of the fixed sleeve 602. A pin 605 is provided through the elastic sleeve 603 and the clamp handle. The end of the pin 605 is located inside the elastic sleeve 603. A pressure head spring 601 is provided between the pin 605 and the elastic sleeve 603. The ejector pin 605 and the elastic cylindrical pin 2 are coaxially arranged, and the diameter of the ejector pin 605 is larger than the diameter of the elastic cylindrical pin 2.

[0027] This utility model provides a stable foundation through a fixed platform 7; a detachable flexible base 4 facilitates the replacement of parts of different specifications or maintenance; a support column mounts the pressure head 6 to ensure the stability of the pressure head 6's movement trajectory; the combination of the base spring 3, plug 5, coupling 53, and flexible stop cap 1 constitutes a positioning, support, and elastic buffering system for the workpiece (connector part), which can accurately fix the part to be installed in the pin hole through the plug 5 and coupling 53, and can also withstand the pressing force and protect the part through the flexible stop cap 1, while the base spring 3 buffers the pressing impact and assists in reset; the structure of the pressure head 6 is to achieve The key to automated pressing is that the elastic sleeve 603 uses magnetism to temporarily attract and fix the small elastic cylindrical pin 2 that is easy to fall off, so as to initially position it; the diameter of the ejector pin 605 is larger than the diameter of the elastic cylindrical pin 2 to ensure that the ejector pin 605 can reliably push the pin without getting stuck inside the pin; the pressure head spring 601 controls the pressing steps: in the initial stage, the elastic sleeve 603 carries the pin down for initial positioning. When the elastic sleeve 603 is blocked and hits the stop cap, the pressure head spring 601 is compressed, allowing the ejector pin 605 to continue to move down relative to the elastic sleeve 603 to complete the final pressing action.

[0028] A stop 42 is provided at the end of the plug 5. The width of the stop 42 is larger than the inner diameter of the flexible base 4. This stop structure prevents the plug 5 from being completely ejected from the flexible base 4 under the action of the base spring 3, ensuring that the plug 5 always remains in the correct working position inside the base cavity, facilitating the rapid placement of the next workpiece. At the same time, during the press-fitting process, the stop acts as a reliable limit point for the stroke of the plug 5 inside the base cavity, ensuring the stability and consistency of the workpiece positioning.

[0029] Reference Figure 5 , Figure 6 and Figure 7The connecting shaft 53 has a first circular hole 54, and the flexible stop cap 1 has a rectangular hole 12. A cylindrical pin hole 13 is located on the flexible stop cap 1 and perpendicular to the rectangular hole 12. The flexible stop cap is sleeved on the connecting shaft 53 through the rectangular hole 12. At the same time, an elastic cylindrical pin 2 is set through the first circular hole 54 and the cylindrical pin hole 13. The first circular hole 54 (connecting shaft 53) and the rectangular hole 12 (flexible stop cap 1) together define the target hole position that the pin needs to pass through. The design of the cylindrical pin hole 13 (perpendicular to the rectangular hole 12) is particularly important. It simulates the real structure of the pin hole in the actual connector, which is usually perpendicular to the shaft. It also provides a bearing surface for the ejector pin 605 to apply pressure to the elastic cylindrical pin 2 during press fitting, ensuring that the pin can be pressed vertically and accurately into the target hole position.

[0030] The flexible stop cap 1 has an outer chamfer 11 at one end near the flexible base 4, and the flexible base 4 has an inner chamfer 51 at one end near the flexible stop cap 1 and located within its inner cavity. The outer chamfer 11 on the flexible stop cap 1 and the inner chamfer 51 of the inner cavity of the flexible base 4 cooperate to form a guide cone surface. As the pressure head 6 descends and the elastic sleeve 603 is about to contact the flexible stop cap 1, this cone surface structure effectively guides the elastic sleeve 603 to accurately align and fit onto the flexible stop cap 1, avoiding impacts, jamming, or damage to parts caused by minor misalignments. This greatly improves the smoothness, reliability, and alignment of the press-fitting operation, which is especially crucial for small, precision components.

[0031] The ejector pin 605 includes a pin seat 606 and a pin post 607. A stepped groove 608 is provided on the top of the fixing sleeve 602, and a sleeve seat 609 is provided on the elastic sleeve 603. These elements divide the ejector pin 605 into the pin seat 606 and the pin post 607, and the elastic sleeve 603 provides the sleeve seat 609, providing the necessary structural foundation for the arrangement of the internal springs and the transmission of force. The stepped groove 608 on the top of the fixing sleeve 602 provides a precise mounting and positioning surface and a stroke limiting surface for the sleeve seat 609.

[0032] A spring is installed between the sleeve 609 and the needle seat 606. The needle seat 606 is pressed against the inner wall of the clamping handle by the spring, and the sleeve 609 is pressed against the stepped groove 608 by the spring. The spring is located between the sleeve 609 and the needle seat 606. In the initial state, when the pressure head 6 moves upward, the needle seat 606 is pressed against the inner wall of the clamping handle, and the sleeve 609 is pressed against the stepped groove 608 of the fixed sleeve 602, so that the ejector pin 605 and the elastic sleeve 603 remain relatively fixed in the initial position. When the pressure head 6 moves downward, after the elastic sleeve 603 is blocked by the flexible stop cap 1, the downward pressure overcomes the spring force, compresses the spring, and causes the needle seat 606 and the ejector pin 605 to move downward relative to the sleeve 609 and the elastic sleeve 603. This spring is the core component for realizing the "two-step" press-fitting process, first positioning with the pin, and then pressing with the ejector pin 605. It ensures the reliable execution of the action sequence and buffers the impact force.

[0033] The fixed platform 7 includes a placement plate 703, with a guide plate 701 fixedly mounted on one side of the placement plate 703. A positioning block 702 is provided on the front side of the guide plate 701. The placement plate 703 is used to place and initially position the flexible base 4 or the workpiece. The guide plate 701 provides a precise guiding channel for the up-and-down movement of the pressure head 6, ensuring that the pressure head 6 moves in the vertical direction and avoiding deflection. The positioning block 702 is used to precisely position the flexible stop cap 1, i.e., the key part of the workpiece to be assembled, on the horizontal plane, ensuring that its pin hole is precisely aligned with the elastic cylindrical pin 2 and the ejector pin 605 on the pressure head 6.

[0034] The guide plate 701 has a guide hole corresponding to the pressure head 6, and the positioning block 702 has a positioning hole. A flexible stop cap 1 can be installed in the positioning hole. The guide hole cooperates with the pressure head 6 or its connecting parts to strictly limit the pressure head 6 to linear movement only in the vertical direction, eliminating any lateral wobbling. This is crucial for ensuring the perpendicularity and accuracy of the pin pressing. The positioning hole on the positioning block 702 is specifically designed to accommodate and fix specific parts of the flexible stop cap 1, such as flanges or specific shapes, achieving precise positioning of the workpiece in the XY plane. This ensures that the target pin hole is accurately aligned with the pin and ejector pin 605 on the pressure head 6 during each pressing operation. A circular ring 41 is provided on the outer side of the flexible base 4, and a mounting groove 91 is provided on the fixed platform 7 corresponding to the circular ring 41. The flexible base 4 is slidably mounted on the mounting groove 91 through the circular ring 41. The sliding fit design of the circular ring 41 and the mounting groove 91 allows the flexible base 4 to be easily and quickly removed and installed as a whole from the fixed platform 7. A base 9 is installed below the fixed platform 7. The base 9 has a T-shaped slide groove. The fixed platform 7 is slidably mounted on the trapezoidal slide groove 706 via a trapezoidal slider 705. The T-shaped slide groove on the base 9 cooperates with the trapezoidal slider 705 at the bottom of the fixed platform 7, allowing the entire fixed platform 7, along with all its positioning components, to slide and adjust along a specific direction (such as the front-to-back direction) on the base 9. This allows the tooling to flexibly adapt to products of different sizes or models, or to fine-tune the position of the fixed platform 7 relative to the pressure head 6 to achieve the optimal assembly state, greatly enhancing the versatility and adaptability of the tooling. After adjustment, the tight fit between the slider and the slide groove provides sufficient rigidity to withstand the pressing force. The tooling is used as follows: Manually insert the elastic cylindrical pin into the round hole of the 603 elastic sleeve. The elastic cylindrical pin will be magnetically attracted and will not fall off. Manually insert the parts to be assembled into the round hole of the fixing part 702, as per the instructions. Figure 1Move the wrench 801 on the crimp connector 8 to lower the crimp head 6. The elastic sleeve 603 on the crimp head, along with the elastic cylindrical pin, moves to the stop cap. Continue lowering; at this point, the elastic sleeve 603 will stop and rest above the stop cap. The ejector pin 605 will continue lowering, pressing the elastic cylindrical pin into place. Because the elastic cylindrical pin has a tight fit with the stop cap and the round hole of the plug, it will not be pulled back after being pressed in. After it is in place, lift the pressure bed handle; all internal parts of the crimp head will reset. Then, remove the pressure plate connector.

[0035] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A connector resilient cylindrical pin mounting fixture, characterized in that, Includes a fixed platform, a flexible base is provided above the fixed platform, and a pressure head is installed above the flexible base via a support column; A base spring is installed inside the flexible base, a plug is installed through the base spring, a connecting shaft is installed at the end of the plug, a flexible stop cap is sleeved on the connecting shaft, and an elastic cylindrical pin is installed through the flexible stop cap and the connecting shaft. The pressure head includes a clamping handle, which is connected to a fixed sleeve via an external thread. An elastic sleeve is installed inside the fixed sleeve, with the end of the elastic sleeve extending out of the fixed sleeve. A pin is also installed through the elastic sleeve and the clamping handle, with the end of the pin located inside the elastic sleeve. A pressure head spring is installed between the pin and the elastic sleeve. The ejector pin and the elastic cylindrical pin are coaxially aligned, and the diameter of the ejector pin is larger than the diameter of the elastic cylindrical pin.

2. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, A stop is provided at the end of the plug, and the width of the stop is greater than the inner diameter of the flexible base.

3. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, The connecting shaft has a first circular hole, the flexible stop cap has a rectangular hole, and a cylindrical pin hole is located on the flexible stop cap and perpendicular to the rectangular hole. The flexible stop cap is sleeved on the connecting shaft through the rectangular hole, and an elastic cylindrical pin is provided through the first circular hole and the cylindrical pin hole.

4. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, The flexible cap has an outer chamfer at one end near the flexible base, and the flexible base has an inner chamfer at one end near the flexible cap and located in the inner cavity.

5. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, The ejector pin includes a needle base and a needle post, the top of the fixed sleeve is provided with a stepped groove, and the elastic sleeve is provided with a sleeve base.

6. The connector elastic cylindrical pin mounting fixture according to claim 5, characterized in that, A spring is provided between the sleeve and the needle seat. The needle seat is pressed against the inner wall of the clamp by the spring, and the sleeve is pressed against the stepped groove by the spring.

7. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, The fixed platform includes a placement plate, a guide plate is fixedly installed on one side of the placement plate, and a positioning block is provided on the front side of the guide plate.

8. The connector elastic cylindrical pin mounting fixture according to claim 7, characterized in that, The guide plate is provided with a guide hole corresponding to the pressure head, and the positioning block is provided with a positioning hole, in which a flexible stop cap can be installed.

9. The connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, A circular ring is provided on the outer side of the flexible base, and a mounting groove is provided on the fixed platform corresponding to the circular ring. The flexible base is slidably mounted on the mounting groove through the circular ring.

10. A connector elastic cylindrical pin mounting fixture according to claim 1, characterized in that, A base is provided below the fixed platform, and the base is provided with a T-shaped sliding groove. The fixed platform is slidably installed on the trapezoidal sliding groove by a trapezoidal slider.

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