Positioning pin pulling device
By designing a positioning pin extraction device connected by a stop iron, a sliding handle and a connecting rod, the problems of existing pin pullers pinching hands and easily damaging screws are solved, and a safe, reliable and efficient pin extraction operation is achieved, which improves work efficiency and reduces consumables consumption.
Patent Information
- Application Number
- CN202422920468.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing pin pullers have the risk of pinching hands, poor buffering capacity, easy damage to screws, and inconvenience in replacement during use, resulting in low work efficiency.
A device for extracting locating pins is designed, including a stop iron, a sliding handle, a connecting rod and a pin puller head. Various screws are stored on the stop iron, the connecting rod is connected by threads, the sliding handle is designed as an outer curved surface, and the pin puller head is a cube, which meets the needs of different locating pins and avoids the need to carry multiple pin puller heads and weld stop irons.
It improves the safety and efficiency of operation, reduces maintenance time, speeds up assembly, reduces consumables consumption, and becomes the best tool for disassembly.
Smart Images
Figure CN223477538U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automobile manufacturing equipment, specifically relating to a device for removing positioning pins. Background Technology
[0002] A common pin puller structure involves welding a stop to the end of the connecting rod. During use, a pin puller head matching the connecting rod is connected to the other end. A corresponding washer is placed inside the pin puller head, followed by a matching screw. The inertia of the sliding handle moving up and down pulls the locating pin out.
[0003] The shortcomings of commonly used pin pullers on the market include: When the handle of an existing pin puller slides up and down and hits the tail stop, it can cause a hand pinching hazard. Furthermore, the handle's cushioning ability is poor; even slight force can cause hand vibration and damage to the screw hole of the pin puller head. Screws are standard parts and consumables. Different locating pins require different screws. Damaged screws require finding the correct screw, wasting time. Moreover, different pin puller heads need to be switched for different screws, requiring the carrying of various pin puller heads, which is inconvenient and reduces work efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a device for removing positioning pins to solve the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for removing a positioning pin, comprising a stop, a sliding handle, a connecting rod, and a pin puller head. One end of the connecting rod is threadedly connected to the stop, and the other end of the connecting rod is threadedly connected to the pin puller. The sliding handle is fitted onto the connecting rod for sliding engagement. The pin puller is a cube with six faces, three of which are threaded holes for connecting screws, and the other three are through holes of different sizes.
[0006] Preferably, the connecting rod includes a first connecting rod and a second connecting rod, both ends of the first connecting rod are external threads, and one end of the second connecting rod is an internal thread and the other end is an external thread.
[0007] Preferably, the stop has several threaded holes for storing screws of different sizes.
[0008] The advantages of this invention are: it eliminates the need to carry multiple pin puller heads and weld stoppers; damaged pins can be directly replaced. The two connecting rods are threaded together, facilitating storage in the tool bag.
[0009] The stop block stores various screws. When using it, simply take a screw from the stop block that matches the pin, insert it into the matching hole on the pin puller head, increasing the speed of screw assembly and reducing maintenance or disassembly time. The curved handle design provides a good feel and ensures safe and reliable operation, allowing for quick and effective pin removal. The pin puller boasts unique functionality, improved efficiency, and effective cost reduction, making it the best tool for disassembly. Attached Figure Description
[0010] Figure 1 This is a perspective view of the present invention;
[0011] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation
[0012] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.
[0013] like Figure 1 As shown, a device for removing locating pins includes a stop 1, a sliding handle 2, a first connecting rod 3, a second connecting rod 4, and a pin puller 5. The stop can hold various screws, and the threads connect to the connecting rods. The sliding handle features a through-hole curved surface design for comfortable grip and to prevent the upper and lower palms from being pinched. The first connecting rod has external threads at both ends, with one end connected to the stop and the other end connected to the second connecting rod. The second connecting rod has an internal thread at one end and an external thread at the other. The internal thread end connects to the first connecting rod, and the external thread connects to the pin puller. The pin puller is installed at one end of the second connecting rod. The head of the pin puller is a cube with six faces, three of which are threaded holes for connecting screws, and the other three are through holes of different sizes to accommodate screws that require removing different locating pins. It is machined with 45# steel and hardened by quenching to achieve the appropriate hardness, preventing the through holes from being damaged by the screws.
[0014] When in use, connect the two connecting rods together. One end of the connecting rod is threaded to a stop, and the other end of the connecting rod is connected to the pin puller head. Take a screw that matches the pin from the stop and insert it into the matching hole of the pin puller head. Tighten the screw and the pin, slide the handle up and down, and use inertia to pull out the pin.
[0015] This device eliminates the need to carry multiple pin puller heads or weld stoppers; damaged parts can be directly replaced. The two connecting rods are threaded together for easy storage in a tool bag.
[0016] The stop block stores various screws. When using it, simply take a screw from the stop block that matches the pin, insert it into the matching hole on the pin puller head, increasing the speed of screw assembly and reducing maintenance or disassembly time. The curved handle design provides a good feel and ensures safe and reliable operation, allowing for quick and effective pin removal. The pin puller boasts unique functionality, improved efficiency, and effective cost reduction, making it the best tool for disassembly.
[0017] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A device for removing a positioning pin, characterized in that: It includes a stop, a sliding handle, a connecting rod, and a pin puller head. One end of the connecting rod is threaded to the stop, and the other end of the connecting rod is threaded to the pin puller. The sliding handle is fitted onto the connecting rod for sliding engagement. The pin puller is a cube with six faces, three of which are threaded holes for connecting to the screw, and the other three are through holes of different sizes.
2. The device for removing the positioning pin according to claim 1, characterized in that: The connecting rod includes a first connecting rod and a second connecting rod. Both ends of the first connecting rod are external threads, and one end of the second connecting rod is an internal thread, while the other end is an external thread.
3. The device for removing the positioning pin according to claim 1, characterized in that: The stop has several threaded holes for storing screws of different sizes.