Workpiece positioning tool provided with positioning pin protection copper sleeve

Abstract

The utility model relates to the technical field of machinery. The workpiece positioning tool provided with the positioning pin protecting copper sleeve comprises a base plate, a positioning seat is installed on the base plate and comprises an upper seat and a lower seat which are detachably connected up and down, an air cylinder is detachably connected to the lower seat, and the positioning pin is slidably connected to a telescopic rod of the air cylinder; the upper seat comprises a top plate, supporting plates extending downwards are connected to the two sides of the top plate, and the area between the two supporting plates is a mounting space of the air cylinder; a through hole is formed in the top plate, a protection copper sleeve is connected into the through hole in an interference fit mode, and the protection copper sleeve is connected with the positioning pin in a sliding mode. By optimizing the structure of the positioning seat and additionally arranging the protection copper sleeve, mutual abrasion between a positioning hole and a positioning pin on a traditional positioning seat is reduced, the precision of the positioning pin can be improved, and the service life of the positioning pin can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a workpiece positioning tool. Background Art

[0002] When the workpiece is welded or processed, it is often necessary to position it with a positioning tool. The fixing pin is one of the main components for positioning.

[0003] The installation methods of the locating pin generally include fixed installation on the base plate or movable installation on the lifting cylinder. For the locating pin installed on the lifting cylinder, a locating seat is often installed on the base plate, and a locating hole is opened on the locating seat for the locating pin to pass through. When the gap between the locating pin and the locating hole is worn to a certain extent, the locating pin must be replaced, which can save the accuracy and cost of replacing the locating pin or the locating seat.

[0004] Currently, there is an urgent need for a positioning tooling structure that can improve the wear resistance of the positioning pin and the positioning seat. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a workpiece positioning tool provided with a positioning pin protection copper sleeve, which has solved at least one of the above-mentioned technical problems.

[0006] The technical solution of the utility model is: a workpiece positioning tooling provided with a positioning pin protection copper sleeve comprises a base plate, characterized in that a positioning seat is installed on the base plate, the positioning seat comprises an upper seat and a lower seat which are detachably connected up and down, a cylinder is detachably connected to the lower seat, and a positioning pin is slidably connected to the telescopic rod of the cylinder;

[0007] The upper seat comprises a top plate, and two sides of the top plate are connected with support plates extending downward, and the area between the two support plates is the installation space of the cylinder;

[0008] A through hole is provided on the top plate, a protective copper sleeve is connected in the through hole by interference fit, and the protective copper sleeve is slidably connected to the positioning pin.

[0009] The utility model optimizes the structure of the positioning seat and adds a protective copper sleeve, thereby reducing the mutual wear between the positioning hole and the positioning pin on the traditional positioning seat, and can increase the precision and service life of the positioning pin.

[0010] Further preferably, the outer diameter of the protective copper sleeve is 4 mm-6 mm.

[0011] Further preferably, the axial length of the protective copper sleeve is 10-15 mm.

[0012] Further preferably, when the cylinder is in a shortened state, the top of the positioning pin is located inside the protective copper sleeve;

[0013] When the cylinder is in an extended state, the top of the positioning pin extends out of the protective copper sleeve.

[0014] Further preferably, the top plate includes a supporting portion and a blowing portion which are adjacently arranged, and an upper surface of the supporting portion is lower than an upper surface of the blowing portion;

[0015] The upper surface of the support portion is used to support the workpiece;

[0016] A blowing hole is provided on one side of the blowing portion adjacent to the supporting portion;

[0017] A joint for docking and connecting the blowing holes is installed on the lower side of the top plate.

[0018] It is convenient to inflate through the joint, and to guide the gas out through the blowing hole to blow away the aluminum chips on the supporting part, so as to ensure the flatness of the workpiece.

[0019] Further preferably, a mounting block is detachably connected to the front, back, left, and right sides of the base plate;

[0020] A guide block is slidably connected to the mounting block;

[0021] The guide block is L-shaped, and has a vertically arranged guide portion and a horizontally arranged mounting portion. The side of the guide portion adjacent to the center of the substrate is a guide surface, and the guide surface includes an inclined surface inclined inward from top to bottom and a vertical surface arranged vertically, and the inclined surface and the vertical surface are arranged up and down.

[0022] Further preferably, a waist-shaped hole is provided on the mounting portion, and the mounting portion is detachably connected to the mounting block by a bolt passing through the waist-shaped hole.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The utility model optimizes the structure of the positioning seat and adds a protective copper sleeve, thereby reducing the mutual wear between the positioning hole and the positioning pin on the traditional positioning seat, and can increase the precision and service life of the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0026] Figure 2 It is a partial structural schematic diagram of a specific embodiment 1 of the utility model;

[0027] Figure 3 This is a structural schematic diagram of a cylinder, a positioning pin and a protective copper sleeve in an assembled state according to a specific embodiment 1 of the utility model;

[0028] Figure 4 It is a schematic diagram of the local structure of specific embodiment 1 of the utility model.

[0029] In the figure, 1 is a base plate, 2 is an upper seat, 3 is a lower seat, 4 is a protective copper sleeve, 5 is a cylinder, 6 is a positioning pin, 7 is a mounting block, 8 is a guide block, 21 is a top plate, and 22 is a blowing hole. DETAILED DESCRIPTION

[0030] See also Figures 1 to 4 , Specific embodiment 1, a workpiece positioning tooling with a positioning pin protective copper sleeve, comprises a base plate 1, a positioning seat is installed on the base plate 1, the positioning seat comprises an upper seat 2 and a lower seat 3 which are detachably connected up and down, a cylinder 5 is detachably connected to the lower seat 3, and a positioning pin 6 is slidably connected to the telescopic rod of the cylinder 5; the upper seat 2 comprises a top plate 21, and the two sides of the top plate 21 are connected to support plates extending downward, and the area between the two support plates is the installation space of the cylinder 5; a through hole is opened on the top plate, and a protective copper sleeve 4 is connected in the through hole by interference fit, and the protective copper sleeve 4 is slidably connected to the positioning pin 6. The utility model reduces the mutual wear between the positioning hole and the positioning pin 6 on the traditional positioning seat by optimizing the structure of the positioning seat and adding the protective copper sleeve 4, and can increase the accuracy and service life of the positioning pin 6.

[0031] The outer diameter of the protective copper sleeve 4 is 4 mm to 6 mm, and the axial length of the protective copper sleeve 4 is 10 mm to 15 mm.

[0032] When the cylinder 5 is in a shortened state, the top of the positioning pin 6 is located in the protective copper sleeve 4; when the cylinder 5 is in an extended state, the top of the positioning pin 6 extends out of the protective copper sleeve 4. When the cylinder 5 is in a shortened state, the top of the positioning pin 6 is preferably located at the lower end of the protective copper sleeve 4.

[0033] The top plate 21 includes a support part and a blowing part which are arranged adjacent to each other. The upper surface of the support part is lower than the upper surface of the blowing part. The upper surface of the support part is used to support the workpiece. A blowing hole 22 is provided on one side of the blowing part adjacent to the support part. A joint for connecting and conducting the blowing hole is installed on the lower side of the top plate. It is convenient to inflate through the joint, and to guide the gas through the blowing hole to blow away the aluminum chips on the support part, so as to ensure the flatness of the workpiece.

[0034] A mounting block 7 is detachably connected to the front, back, left, and right sides of the base plate; a guide block 8 is slidably connected to the mounting block; the guide block is L-shaped, with a vertically arranged guide portion and a horizontally arranged mounting portion, and the side of the guide portion adjacent to the center of the base plate is a guide surface, and the guide surface includes an inclined surface inclined inward from top to bottom and a vertical surface arranged vertically, and the inclined surface and the vertical surface are arranged up and down. A waist-shaped hole is opened on the mounting portion, and the mounting portion is detachably connected to the mounting block by a bolt passing through the waist-shaped hole.

[0035] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A workpiece positioning fixture provided with a positioning pin protection copper sleeve, comprising a base plate, characterized in that: A positioning seat is installed on the base plate, and the positioning seat includes an upper seat and a lower seat which are detachably connected to each other, a cylinder is detachably connected to the lower seat, and a positioning pin is slidably connected to the telescopic rod of the cylinder; The upper seat comprises a top plate, and two sides of the top plate are connected with support plates extending downward, and the area between the two support plates is the installation space of the cylinder; A through hole is provided on the top plate, a protective copper sleeve is connected in the through hole by interference fit, and the protective copper sleeve is slidably connected to the positioning pin.

2. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 1, characterized in that: The outer diameter of the protective copper sleeve is 4mm-6mm.

3. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 1, characterized in that: The axial length of the protective copper sleeve is 10-15 mm.

4. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 1, characterized in that: When the cylinder is in a shortened state, the top of the positioning pin is located in the protective copper sleeve; When the cylinder is in an extended state, the top of the positioning pin extends out of the protective copper sleeve.

5. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 1, characterized in that: The top plate includes a supporting portion and a blowing portion that are adjacently arranged, and the upper surface of the supporting portion is lower than the upper surface of the blowing portion; The upper surface of the support portion is used to support the workpiece; A blowing hole is provided on one side of the blowing portion adjacent to the supporting portion; A joint for docking and connecting the blowing holes is installed on the lower side of the top plate.

6. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 1, characterized in that: The four sides of the base plate are detachably connected with a mounting block; A guide block is slidably connected to the mounting block; The guide block is L-shaped, and has a vertically arranged guide portion and a horizontally arranged mounting portion. The side of the guide portion adjacent to the center of the substrate is a guide surface, and the guide surface includes an inclined surface inclined inward from top to bottom and a vertical surface arranged vertically, and the inclined surface and the vertical surface are arranged up and down.

7. The workpiece positioning fixture provided with a positioning pin protection copper sleeve according to claim 6, characterized in that: A waist-shaped hole is provided on the mounting portion, and the mounting portion is detachably connected to the mounting block by a bolt passing through the waist-shaped hole.

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