Locating pin replacing tool

Abstract

The positioning pin replacing tool comprises a center column, a handle, a sleeve, a limiting rod and a matching column, the matching column and the handle are arranged at the two ends of the center column respectively, the center column is sleeved with the sleeve in a sliding mode, the sleeve is located between the handle and the matching column, the limiting rod is arranged on the center column, and the limiting rod is located between the handle and the matching column. The limiting rod is located between the sleeve and the matching column, a thread is arranged at one end of the matching column, and the central axis of the matching column coincides with the central axis of the central column. The replacing tool has the following beneficial effects that the handle and the limiting rod play a role in limiting sliding of the sleeve from the two sides respectively, and the sleeve can only slide between the limiting rod and the handle, so that the sleeve cannot collide with a workpiece for installing the positioning pin in the using process, and the workpiece is prevented from being collided and damaged in the pin lifting and installing processes.

Description

Technical Field

[0001] The utility model relates to the field of disassembly and assembly tooling equipment, in particular to a positioning pin replacement tool. Background Art

[0002] A cylindrical screw hole locating pin (i.e. a cylinder with a threaded blind hole at one end) is a commonly used locating pin at present, and its structure is shown in patent publication CN219472512U. Locating pins of this structure are widely used due to their simple structure. For locating pins of this structure, a pin lifter as shown in patent publication CN201645407U is often used for lifting the pin. Since there is no limiting structure under the lifting hammer (numbered 2 in the figure in the document) of the pin lifter of this structure, the lifting hammer is likely to hit the workpiece below when moving downward, thereby causing certain damage to the workpiece. Utility Model Content

[0003] In view of the above problems, the utility model provides a positioning pin replacement tool.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A positioning pin replacement tool comprises a center column, a handle, a sleeve, a limit rod and a matching column, wherein the matching column and the handle are respectively arranged at two ends of the center column, the sleeve is slidably mounted on the center column, the sleeve is located between the handle and the matching column, the limit rod is arranged on the center column, and the limit rod is located between the sleeve and the matching column, one end of the matching column is provided with a thread, and the central axis of the matching column coincides with the central axis of the center column.

[0006] The method of using this replacement tool (also called a pin remover) is as follows: first, hold the sleeve with one hand and the handle with the other hand, then align the matching column with the column locating pin, screw one end of the matching column into the threaded blind hole of the locating pin, and then use the handle to straighten the center column and continuously hit the handle with the sleeve (during this process, the sleeve continuously moves between the handle and the limit rod). During the impact process, the locating pin will be pulled out of the workpiece, and then the locating pin can be unscrewed from the matching column.

[0007] It should be noted that this tool can not only remove pins, but also install locating pins. The process of installing the locating pin is as follows: first, screw the locating pin to one end of the matching rod, then align the locating pin with the pin hole, and then directly press the entire center rod into the pin hole (or use a sleeve to continuously hit the limit rod). After the locating pin is completely in the pin hole, twist the handle to disengage the locating pin from the matching column.

[0008] In this replacement tool, since the handle and the limit rod limit the sliding of the sleeve from both sides respectively, the sleeve can only slide between the limit rod and the handle, so the sleeve will not hit the workpiece on which the locating pin is installed during use, avoiding damage to the workpiece during the process of removing and installing the pin.

[0009] Optionally, the limiting rod is perpendicular to the central column.

[0010] Specifically, the limit rod can be directly welded and fixed on the central column, or a blind hole can be opened on the mounting column, and the limit rod is directly inserted into the blind hole of the mounting column (it can be welded and fixed).

[0011] Optionally, the handle is a columnar handle.

[0012] Compared with the sheet-shaped handle in CN201645407U, the columnar handle is easier to hold and reduces the probability of the sleeve hitting the hand when hitting the handle.

[0013] Optionally, the central column is a cylindrical midline column, the sleeve is a cylindrical sleeve, and the diameter of the central column is equal to the inner diameter of the sleeve.

[0014] Optionally, the limiting rod is a cylindrical limiting rod.

[0015] Optionally, a step ring is provided at one end of the handle, and the step ring is used to contact the sleeve.

[0016] The presence of the step ring can allow a certain gap between the handle and the sleeve when the sleeve hits the handle, which can reduce the probability of hitting the hand to a certain extent.

[0017] The beneficial effect of the utility model is that the handle and the limit rod respectively limit the sliding of the sleeve from both sides, and the sleeve can only slide between the limit rod and the handle, so the sleeve will not hit the workpiece on which the locating pin is installed during use, avoiding damage to the workpiece during the process of removing and installing the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram showing the use of the positioning pin replacement tool;

[0019] Figure 2 This is a schematic diagram of the disassembly status of the positioning pin replacement tool.

[0020] The reference numerals in the figure are: 1, handle; 101, step ring; 2, center rod; 3, sleeve; 4, limit rod; 5, matching column. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings.

[0022] As attached Figure 1 And attached Figure 2 As shown, a positioning pin replacement tool includes a center column, a handle 1, a sleeve 3, a limiting rod 4 and a matching column 5. The matching column 5 and the handle 1 are respectively arranged at the two ends of the center column, the sleeve 3 is slidably mounted on the center column, the sleeve 3 is located between the handle 1 and the matching column 5, the limiting rod 4 is arranged on the center column, and the limiting rod 4 is located between the sleeve 3 and the matching column 5, one end of the matching column 5 is provided with a thread (the thread is arranged at the end of the matching column 5 that is not matched with the center column, and the thread on the matching column 5 is used to match with the thread on the positioning pin), and the central axis of the matching column 5 coincides with the central axis of the center column.

[0023] The method of using this replacement tool (also called a pin remover) is as follows: first, hold the sleeve 3 with one hand and the handle 1 with the other hand, then align the matching column 5 with the column locating pin, screw one end of the matching column 5 into the threaded blind hole of the locating pin, and then use the handle 1 to straighten the center column and continuously hit the handle 1 with the sleeve 3 (during this process, the sleeve 3 continuously moves between the handle 1 and the limiting rod 4). During the impact, the locating pin will be pulled out from the workpiece, and then the locating pin can be unscrewed from the matching column 5.

[0024] It should be noted that this tool can not only remove the pin, but also install the positioning pin. The process of installing the positioning pin is as follows: first, screw the positioning pin to one end of the matching rod, then align the positioning pin with the pin hole, and then directly press the entire center rod 2 into the pin hole (or use the sleeve 3 to continuously hit the limit rod 4). After the positioning pin is completely entered into the pin hole, turn the handle 1 to disengage the positioning pin from the matching column 5.

[0025] In this replacement tool, since the handle 1 and the limit rod 4 limit the sliding of the sleeve 3 from both sides respectively, the sleeve 3 can only slide between the limit rod 4 and the handle 1, so the sleeve 3 will not hit the workpiece on which the locating pin is installed during use, avoiding damage to the workpiece during the process of removing and installing the pin.

[0026] Specifically in this replacement tool, the matching column 5 can be fixed on the center column by welding, or fixed on the center column by gluing. Similarly, the matching column 5 can be installed on the center column in a detachable manner, such as a screw hole is provided at one end of the center column, and the matching column 5 can be installed in the screw hole of the center column by using a double-headed stud. When the matching column 5 is installed in a non-detachable installation manner, the diameter of the screw hole of the positioning pin adapted by this tool is the same.

[0027] As attached Figure 1 And attached Figure 2 As shown, the limiting rod 4 is perpendicular to the central column.

[0028] Specifically, the limiting rod 4 can be directly welded and fixed on the central column, or a blind hole can be opened on the installation column, and the limiting rod 4 is directly inserted into the blind hole of the installation column (it can be welded and fixed).

[0029] As attached Figure 1 And attached Figure 2 As shown, the handle 1 is a columnar handle 1 .

[0030] Compared with the sheet-shaped handle 1 in CN201645407U, the columnar handle 1 is easier to hold, which reduces the probability of the sleeve 3 hitting the hand when hitting the handle 1.

[0031] As attached Figure 1 And attached Figure 2 As shown, the center column is a cylindrical centerline column, the sleeve 3 is a cylindrical sleeve 3, and the diameter of the center column is equal to the inner diameter of the sleeve 3.

[0032] As attached Figure 1 And attached Figure 2 As shown, the limiting rod 4 is a cylindrical limiting rod 4.

[0033] As attached Figure 1 And attached Figure 2 As shown, a step ring 101 is provided at one end of the handle 1 , and the step ring 101 is used to contact the sleeve 3 .

[0034] The presence of the step ring 101 allows a certain gap to be left between the handle 1 and the sleeve 3 when the sleeve 3 hits the handle 1 , thereby reducing the probability of hitting the hand to a certain extent.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A positioning pin replacement tool, characterized in that: It includes a center column, a handle, a sleeve, a limiting rod and a matching column, wherein the matching column and the handle are respectively arranged at two ends of the center column, the sleeve is slidably mounted on the center column, the sleeve is located between the handle and the matching column, the limiting rod is arranged on the center column, and the limiting rod is located between the sleeve and the matching column, one end of the matching column is provided with a thread, and the central axis of the matching column coincides with the central axis of the center column.

2. The positioning pin replacement tool according to claim 1, characterized in that: The limiting rod is perpendicular to the central column.

3. The positioning pin replacement tool according to claim 1, characterized in that: The handle is a columnar handle.

4. The positioning pin replacement tool according to claim 1, characterized in that: The central column is a cylindrical midline column, the sleeve is a cylindrical sleeve, and the diameter of the central column is equal to the inner diameter of the sleeve.

5. The positioning pin replacement tool according to claim 1, characterized in that: The limiting rod is a cylindrical limiting rod.

6. The positioning pin replacement tool according to claim 1, characterized in that: A step ring is provided at one end of the handle, and the step ring is used to contact the sleeve.

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