Pin mounting tool

Abstract

The utility model provides a pin installation tool which comprises a pin punch, a pin guide sleeve is installed on the head portion of the pin punch, a longitudinal pin guide hole is formed in the pin guide sleeve, a magnetic piece is installed on the pin guide sleeve, and the pin guide hole is used for installing a pin. The head of the pin punch penetrates into the pin guide hole, and the magnetic part attracts the pin in the pin guide hole. A longitudinal pin guide hole is formed in the pin guide sleeve to provide a vertical guide effect, so that the pin is always kept stable in the axial direction in the pressing-in process, and inaccurate pressing or deformation caused by deflection is avoided; the pin is fixed through magnetic force, clamping of a clamping jaw is not needed, the problems that a cylindrical pin cannot be clamped tightly and the appearance is deformed in a traditional clamping mode are solved, and the device is particularly suitable for a chamfer-free pin. The head of the pin punch penetrates into the guide hole punch to be in direct contact with the end face of the pin, the precise pressure transmission path is ensured, and the deviation risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pin installation equipment technical field, especially a pin installation tool. BACKGROUND

[0002] In order to make two components fastening connection together, through the pin is driven into two components and fastening connection together, the current pin driving mode usually is through the installation of press, and the press generally adopts the way of clamping jaw clamping pin, but the surface of pin is usually cylindrical, and the clamping jaw clamping is prone to partial deformation of appearance in the condition of small contact area, and the small contact area leads to unstable clamping, and the pin is prone to skew in the process of pressing, which leads to the problems of inaccurate pin pressing or pin deformation; in order to be easy to press, the head end of some pins on the market adopts the way of chamfering to make the head end sharp, and some products require that the pin cannot be chamfered, so this way cannot be applied. CONTENT OF THE UTILITY MODEL

[0003] To solve the above problems, the utility model aims at providing a pin installation tool.

[0004] The utility model adopts the following method to realize: a pin installation tool, including pin punch, the head of pin punch is installed with pin guide sleeve, the pin guide sleeve is opened with longitudinal pin guide hole, the pin guide sleeve is installed with magnetic piece, the pin guide hole is used for loading pin, the head of pin punch is inserted into the pin guide hole, the magnetic piece attracts the pin in the pin guide hole.

[0005] Preferably, the spring is connected between the pin guide sleeve and the pin punch; the pin guide sleeve and the pin punch can be relatively displaced, and the spring is used to drive the pin guide sleeve to reset.

[0006] Preferably, the pin punch includes a connecting portion and a punch body, the punch body is connected to one side of the connecting portion facing the pin guide sleeve, the punch body is inserted into the pin guide hole and can abut against the end face of the pin.

[0007] Preferably, the pin punch further includes a guide portion, the guide portion is arranged at one end of the connecting portion facing the pin guide sleeve, and the punch body is arranged at one end of the guide portion facing the pin; the pin guide sleeve is further provided with an expansion guide hole, the guide portion is in clearance fit with the expansion guide hole; the expansion guide hole is connected to one end of the pin guide hole facing the connecting portion and is in communication with the pin guide hole.

[0008] Preferably, the outer circumferential surface of the connecting part is provided with a first limiting block, the position of the pin guide sleeve avoiding the magnetic member is provided with a second limiting block, the first limiting block is in limiting connection with one end of the spring, and the second limiting block is in limiting connection with the other end of the spring.

[0009] Preferably, the outer circumferential surface of the connecting part is further provided with a first limiting ring protruding outward, the first limiting ring is arranged in a spaced manner with the first limiting block and is located on the side of the first limiting block away from the pin guide sleeve; the outer circumferential surface of the pin guide sleeve is provided with a second limiting ring protruding outward, the second limiting ring is arranged in a spaced manner with the second limiting block and is located on the side of the second limiting block away from the connecting part, the magnetic member is in abutment with one end of the second limiting ring toward the connecting part, the magnetic member is arranged in a spaced manner with the second limiting block, one end of the spring is in abutment with the second limiting ring, and the other end of the spring is in abutment with the first limiting ring.

[0010] Preferably, the diameter of the connecting part is greater than the diameter of the guide part, the guide part is coaxial with the connecting part, the diameter of the telescopic guide hole is smaller than the diameter of the connecting part, and one end of the telescopic guide hole close to the connecting part can be in abutment with the end surface of the connecting part.

[0011] Preferably, the first limiting block and the second limiting block are half-ring-shaped.

[0012] Preferably, the pin is in clearance fit with the pin guide hole.

[0013] Preferably, the magnetic member is a ring-shaped magnet, and the magnet is sleeved on the outer circumferential surface of the pin guide sleeve.

[0014] The utility model discloses a pin installation tool, compared with prior art, the utility model has at least the following technical effects: 1. the vertical guiding effect is provided to the longitudinal pin guiding hole of pin guiding sleeve, always keeps axial direction stable in the process of pin pressing, avoids the problem of inaccurate pressing or deformation caused by skewing, the pin is fixed through magnetic force, need not to be clamped by the jaw, avoids the problem that the traditional clamping mode is not tight to the cylindrical pin, especially suitable for the pin without chamfer, the head of pin punch is inserted into the guiding hole punch and directly contacts with the end face of pin, ensures the accuracy of pressure transmission path, reduces the risk of deviation. 2. spring connects pin guiding sleeve and punch, allows the relative displacement of both, spring compression buffering impact force when pressing, reduces the risk of pin instantaneous stress deformation; spring drive guiding sleeve resets to realize automatic reset guiding sleeve after completing pressing, improves the continuous operation efficiency of tool. 3. punch body is inserted into guiding hole and abuts against pin, further restricts the position of pin, enhances the stability of pressing process. 4. the clearance fit between guiding portion and telescopic guiding hole provides additional axial guiding effect, prevents the body of punch from shaking in the process of pressing; the continuous guiding path is formed by the communication of telescopic guiding hole and pin guiding hole, reduces the possibility of deviation of pin in different stages of pressing. 5. the first limiting block and the second limiting block are arranged on the connecting portion and the pin guiding sleeve respectively, for limiting spring from pin punch and pin guiding sleeve, guaranteeing that spring can stably provide reset force. 6. the first limiting ring and the second limiting ring are arranged on the connecting portion and the guiding sleeve respectively and abut against one end of spring, providing reset force for pin guiding sleeve. 7. the diameter of connecting portion is greater than the diameter of guiding portion, the end face of telescopic guiding hole abuts against connecting portion, providing hard limit at the end point of pressing, ensuring the consistency of pin pressing depth. 8. the first limiting block and the second limiting block are designed as half ring, facilitating the disassembly and assembly of spring and subsequent maintenance. 9. the clearance fit between pin and guiding hole guarantees the free sliding of pin and reduces radial swing through clearance control, giving consideration to flexibility and guiding accuracy. 10. annular magnet is sleeved on the outer periphery of guiding sleeve, providing uniform circumferential magnetic attraction force, avoiding the inclination problem caused by unilateral adsorption of pin, and the external magnet design is convenient for replacement or adjustment of magnetic force strength, adapting to the pin demand of different materials or sizes. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the pressing state structure schematic diagram of a kind of pin installation tool of the utility model.

[0016] Figure 2 It is the initial state front view of a kind of pin installation tool of the utility model.

[0017] Figure 3 It is the pressing state front view of a kind of pin installation tool of the utility model.

[0018] Figure 4 It is the initial state sectional view of a kind of pin installation tool of the utility model.

[0019] Figure 5 is a press-in state sectional view of a pin installation tool of the present application.

[0020] BRIEF DESCRIPTION OF DRAWINGS 1, pin punch; 11, connecting part; 12, punch body; 13, guide part; 14, first limiting block; 15, first limiting ring; 2, pin guide sleeve; 21, pin guide hole; 22, telescopic guide hole; 23, second limiting block; 24, second limiting ring; 3, magnetic member; 4, spring; 5, pin; 6, product. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the drawings and specific embodiments.

[0022] Please refer to Figures 1 to 5 A pin installation tool, comprising a pin punch 1, a pin guide sleeve 2 is installed on the head of the pin punch 1, a longitudinal pin guide hole 21 is formed in the pin guide sleeve 2, a magnetic member 3 is installed on the pin guide sleeve 2, the pin guide hole 21 is used to accommodate a pin 5, the head of the pin punch 1 penetrates into the pin guide hole 21, and the magnetic member 3 attracts the pin 5 in the pin guide hole 21. The longitudinal pin guide hole 21 formed in the pin guide sleeve 2 provides a vertical guiding effect, ensures that the pin 5 always maintains a stable axial direction during the pressing process, and avoids inaccurate pressing or deformation caused by skewing; the pin 5 is fixed by magnetic force without the need for clamping by a jaw, thereby avoiding the problems of tight clamping and appearance deformation of the cylindrical pin 5 in the traditional clamping mode, and being especially suitable for a pin 5 without chamfering; the head of the pin punch 1 penetrates into the guide hole punch and directly contacts the end face of the pin 5, thereby ensuring the accuracy of the pressure transmission path and reducing the risk of deviation.

[0023] Please refer to Figures 1 to 5 Preferably, a spring 4 is connected between the pin guide sleeve 2 and the pin punch 1; the pin guide sleeve 2 and the pin punch 1 can relatively displace, and the spring 4 is used to drive the pin guide sleeve 2 to reset. The spring 4 connects the pin guide sleeve 2 and the punch, allows the two to relatively displace, compresses the impact force when pressing, reduces the risk of instantaneous stress deformation of the pin 5, and drives the pin guide sleeve 2 to reset to automatically reset the pin guide sleeve 2 after the pressing is completed, thereby improving the continuous operation efficiency of the tool.

[0024] Please refer to Figures 1 to 5, preferably, the pin punch 1 comprises a connecting part 11 and a punch body 12, the punch body 12 is connected to the connecting part 11 towards the pin guide sleeve 2, the punch body 12 penetrates into the pin guide hole 21 and can abut against the end face of the pin 5. The punch body 12 penetrates into the guide hole and abuts against the pin 5, further constrains the position of the pin 5 and enhances the stability of the pressing-in process. The pin 5 installation tool is installed on the press through the connecting part 11, and the product 6 requiring the pin 5 pressing-in is fixed on the clamp of the press.

[0025] Please refer to Figures 1 to 5 , preferably, the pin punch 1 further comprises a guide part 13, the guide part 13 is arranged at one end of the connecting part 11 towards the pin guide sleeve 2, and the punch body 12 is arranged at one end of the guide part 13 towards the pin 5; the pin guide sleeve 2 is further provided with an expansion guide hole 22, the guide part 13 is in clearance fit with the expansion guide hole 22, and the expansion guide hole 22 is connected to one end of the pin guide hole 21 towards the connecting part 11 and communicates with the pin guide hole 21. The guide part 13 is in clearance fit with the expansion guide hole 22, which provides additional axial guidance and prevents the punch body 12 from shaking during the pressing-in process; the expansion guide hole 22 communicates with the pin guide hole 21 to form a continuous guide path, which reduces the possibility of the pin 5 deviating at different stages of the pressing-in process.

[0026] Please refer to Figures 1 to 5 , preferably, the outer periphery of the connecting part 11 is provided with a first limiting block 14, the pin guide sleeve 2 is provided with a second limiting block 23 at a position avoiding the magnetic part 3, the first limiting block 14 is in limiting connection with one end of the spring 4, and the second limiting block 23 is in limiting connection with the other end of the spring 4. The first limiting block 14 and the second limiting block 23 are arranged on the connecting part 11 and the pin guide sleeve 2 respectively, which is used to limit the spring 4 from being pulled out of the pin punch 1 and the pin guide sleeve 2 and ensure that the spring 4 can stably provide a restoring force.

[0027] Please refer to Figures 1 to 5Preferably, an outwardly protruding first limiting ring 15 is further arranged on the outer circumferential surface of the connecting portion 11, the first limiting ring 15 is arranged at a position spaced from the first limiting block 14 and located on the side of the first limiting block 14 away from the pin guide sleeve 2; an outwardly protruding second limiting ring 24 is arranged on the outer circumferential surface of the pin guide sleeve 2, the second limiting ring 24 is arranged at a position spaced from the second limiting block 23 and located on the side of the second limiting block 23 away from the connecting portion 11, the magnetic member 3 is arranged at a position spaced from the second limiting block 23 and abuts against one end of the second limiting ring 24 facing the connecting portion 11, one end of the spring 4 abuts against the second limiting ring 24, and the other end of the spring 4 abuts against the first limiting ring 15. The first limiting ring 15 and the second limiting ring 24 are arranged on the connecting portion 11 and the pin guide sleeve 2 respectively and abut against one end of the spring 4, so as to provide a restoring force for the pin guide sleeve 2.

[0028] Please refer to Figures 1 to 5 Preferably, the diameter of the connecting portion 11 is greater than the diameter of the guide portion 13, the guide portion 13 is coaxial with the connecting portion 11, the diameter of the telescopic guide hole 22 is smaller than the diameter of the connecting portion 11, and the end of the telescopic guide hole 22 close to the connecting portion 11 can abut against the end surface of the connecting portion 11. The diameter of the connecting portion 11 is greater than the diameter of the guide portion 13, the telescopic guide hole 22 abuts against the end surface of the connecting portion 11, a hard limit is provided at the end of the pressing, and the consistency of the pressing depth of the pin 5 is ensured.

[0029] Please refer to Figures 1 to 5 Preferably, the first limiting block 14 and the second limiting block 23 are half-ring-shaped. The first limiting block 14 and the second limiting block 23 are designed as half-ring-shaped, so that the spring 4 is convenient to disassemble and assemble and is convenient to maintain.

[0030] Please refer to Figures 1 to 5 Preferably, the pin 5 is in clearance fit with the pin guide hole 21. The pin 5 is in clearance fit with the guide hole, so that the sliding of the pin 5 is ensured, the radial swing of the pin 5 is reduced through the clearance, and flexibility and guiding accuracy are considered.

[0031] Please refer to Figures 1 to 5 Preferably, the magnetic member 3 is a ring-shaped magnet, and the magnet is sleeved on the outer circumferential surface of the pin guide sleeve 2. The ring-shaped magnet is sleeved on the outer circumferential surface of the pin guide sleeve 2, uniform circumferential magnetic attraction force is provided, and the inclination problem caused by unilateral adsorption of the pin 5 is avoided; the magnet is designed to be externally arranged, so that the magnetic force is convenient to replace or adjust, and the demand of the pin 5 of different materials or sizes is met.

[0032] The utility model has the following working principle:

[0033] Before use, the pin 5 installation tool is installed on the press through the connecting part 11 of the pin punch 1, the product 6 needing to be press-fitted with the pin 5 is fixed on the clamp of the press, the pin 5 is installed into the pin guide hole 21 (the pin 5 can be fixed in the pin guide hole 21 by the magnetic member 3), the press drives the pin punch 1 to move downward, thereby driving the pin guide sleeve 2 to move downward to approach the product 6 installed on the clamp, when the pin 5 contacts the product 6, the press continues to drive the pin punch 1 to move downward, the pin 5 gradually starts to be in the product 6, and the lower end surface of the pin guide sleeve 2 contacts the upper surface of the product 6 in the process, then the press drives the pin punch 1 to continue to move downward (the pin punch 1 will relatively displace with the pin guide sleeve 2), until the lower end surface of the connecting part 11 of the pin punch 1 contacts the upper end surface of the telescopic guide hole 22 of the pin guide sleeve 2, at this time, the pin 5 has been press-fitted in place, then the press drives the pin punch 1 to reversely move, the end surface of the connecting part 11 and the end surface of the telescopic guide are out of contact, so that the pin 5 can be installed again for the next pin 5 installation. In the press-fitting process, the pin 5 is replaced by the magnetic adsorption mode, the clamping is more stable, the pin guide hole 21 plays a role in guiding and keeping vertical in the pin 5 press-fitting process, the accuracy of press-fitting is improved, and the deformation of the pin 5 is avoided.

[0034] It should be noted that, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: the utility model discloses the embodiment only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0036] Finally, the preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the utility model belongs to the protection scope of the utility model.

[0037] It should be noted that, for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the utility model can also be considered as the protection scope of the utility model.

Claims

1. A pin installation tool, characterized in that: The device includes a pin punch, the head of which is fitted with a pin guide sleeve. The pin guide sleeve has a longitudinal pin guide hole, and a magnetic element is mounted on the pin guide sleeve. The pin guide hole is used to insert a pin, and the head of the pin punch passes through the pin guide hole. The magnetic element attracts the pin in the pin guide hole.

2. The pin installation tool according to claim 1, characterized in that: A spring is connected between the pin guide sleeve and the pin punch; the pin guide sleeve and the pin punch are capable of relative displacement, and the spring is used to drive the pin guide sleeve to reset.

3. The pin installation tool according to claim 2, characterized in that: The pin punch includes a connecting part and a punch body. The punch body is connected to the side of the connecting part facing the pin guide sleeve. The punch body passes through the pin guide hole and can abut against the end face of the pin.

4. A pin installation tool according to claim 3, characterized in that: The pin punch also includes a guide portion, which is located at one end of the connecting portion facing the pin guide sleeve, and the punch body is located at the end of the guide portion facing the pin; the pin guide sleeve is also provided with a telescopic guide hole, and the guide portion and the telescopic guide hole are clearance-fitted; the telescopic guide hole is connected to the end of the pin guide hole facing the connecting portion and communicates with the pin guide hole.

5. A pin installation tool according to claim 4, characterized in that: A first limiting block is provided on the outer peripheral surface of the connecting part, and a second limiting block is provided on the pin guide sleeve at a position avoiding the magnetic component. The first limiting block is limitedly connected to one end of the spring, and the second limiting block is limitedly connected to the other end of the spring.

6. A pin installation tool according to claim 5, characterized in that: The outer peripheral surface of the connecting part is also provided with an outwardly protruding first limiting ring, which is spaced apart from the first limiting block and located on the side of the first limiting block away from the pin guide sleeve; the outer peripheral surface of the pin guide sleeve is provided with an outwardly protruding second limiting ring, which is spaced apart from the second limiting block and located on the side of the second limiting block away from the connecting part; the magnetic element abuts against the end of the second limiting ring facing the connecting part, the magnetic element is spaced apart from the second limiting block; one end of the spring abuts against the second limiting ring, and the other end of the spring abuts against the first limiting ring.

7. A pin installation tool according to claim 5, characterized in that: The first limiting block and the second limiting block are semi-circular.

8. A pin installation tool according to claim 4, characterized in that: The diameter of the connecting part is larger than the diameter of the guide part, the guide part is coaxial with the connecting part, the diameter of the telescopic guide hole is smaller than the diameter of the connecting part, and the end of the telescopic guide hole near the connecting part can abut against the end face of the connecting part.

9. A pin installation tool according to claim 1, characterized in that: The pin is clearance-fitted with the pin guide hole.

10. A pin installation tool according to claim 1, characterized in that: The magnetic component is a ring-shaped magnet, which is sleeved on the outer circumferential surface of the pin guide sleeve.

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