CN217193354U

CN217193354U - Positioning pin for laser cutting machine

Info

Publication number: CN217193354U
Application number: CN202220895359.XU
Authority: CN
Inventors: 汪万通
Original assignee: Zhejiang Yongzhan Automation Equipment Co ltd
Current assignee: Zhejiang Yongzhan Automation Equipment Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-16
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a locating pin for laser cutting machine, including the inside hollow round pin body, screw rod, tight piece in top, ball, the top of the round pin body is seted up threaded hole, the screw rod with screw hole threaded connection just the bottom of screw rod is located the round pin is internal, the tight piece in top is established the bottom of screw rod, the unthreaded hole has been seted up along the circumferencial direction to the lateral wall of the round pin body, the ball is located the tight piece in top with between the unthreaded hole. The workpiece is positioned through the pin body, the jacking block moves downwards through the rotation of the screw rod, so that the balls move towards the side wall of the pin body and protrude out of the unthreaded hole, the gap between the positioning pin and the part is eliminated, the purpose of expanding is achieved, the workpiece is positioned more firmly, the error of later-stage cutting is reduced, and the novel adjustable.

Description

Positioning pin for laser cutting machine

Technical Field

The utility model relates to a locating pin especially relates to a locating pin for laser cutting machine.

Background

The positioning pin and the part participating in limiting the freedom degree of the object are applied to some mechanical motion devices to a certain extent and are mainly used for determining the position of a two-dimensional space, the positioning pin takes a workpiece hole as a positioning reference, the part participating in limiting the freedom degree of the object is also widely used in a laser cutting machine, but the existing positioning pin has higher requirement on the processing precision, the pin diameter is fixed and is required to be larger than the hole diameter of a pin hole of an assembly workpiece after the processing is finished, and the fixation is realized through the interference fit of the positioning pin and the workpiece. However, in the fixing mode, the positioning pin needs to be knocked into the pin hole of the workpiece through a tool, so that the assembly is very inconvenient, the clamping time is long, the positioning pin is difficult to disassemble after the assembly is finished, and the workpiece is inconvenient to replace; the wear on the parts is great during assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locating pin for laser cutting machine in order to solve the existing problem.

The utility model provides a locating pin for laser cutting machine, is including the hollow round pin body in inside, screw rod, tight piece, ball, the threaded hole has been seted up at the top of the round pin body, the screw rod with screw hole threaded connection just the bottom of screw rod is located in the round pin body, tight piece is established in the top the bottom of screw rod, the unthreaded hole has been seted up along the circumferencial direction to the lateral wall of the round pin body, the ball is located tight piece in the top with between the unthreaded hole.

Preferably, the bottom of the ball is provided with a support ring, the side wall of the support ring is fixedly connected with the inner side wall of the pin body, a sliding groove is formed in the position, corresponding to the ball, of the support ring, the sliding direction of the sliding groove is along the radial direction of the support ring, the sliding groove penetrates through the upper surface to the lower surface of the support ring, the sliding groove is connected with a sliding block in a sliding manner, the top of the sliding block is fixedly connected with the ball, the bottom of the sliding block is fixedly connected with an anti-dropping plate, and the sliding block slides in the sliding groove to drive the ball to move towards the side wall of the pin body, so that the ball can protrude out of the unthreaded hole, and the purpose of expanding the diameter is achieved.

Preferably, the ball diameter of the ball is larger than the ring width of the support ring, so that the ball can contact the side wall of the pin body.

Preferably, the tightening block is in a shape of a cone with a large upper part and a small lower part, so that the tightening block can push the rolling ball to move outwards due to the fact that the diameter of the tightening block is larger and larger in the process of pressing down.

Preferably, the number of the balls is more than four, and the parts of the balls protruding out of the pin body are uniform, so that the pushing force of the pin body on the workpiece is the same.

Preferably, the bottom cover of round pin body has the locating pin base, the external screw thread has been seted up to the bottom of round pin body, the inside wall of locating pin base seted up with external screw thread assorted internal thread, through the threaded connection of locating pin base with round pin body bottom to make the length of round pin body scalable, thereby make the locating pin can adapt to with the work piece of different thickness, strengthen the suitability of product.

Preferably, the top of locating pin base is equipped with two fixed plates, seted up the mounting hole on the fixed plate, with the embedding of locating pin base to the mesa of workstation on, later be connected the screw through mounting hole and workstation to the realization is fixed the locating pin and is gone on the purpose on the workstation.

Preferably, the anti-slip plate has a circular shape, and the diameter of the anti-slip plate is greater than the width of the sliding groove, so that the anti-slip plate is prevented from being pulled out of the sliding groove.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a work piece is fixed a position through the round pin body, and the rotation through the screw rod makes the tight piece of top move down to make the ball move to the lateral wall of round pin body, makes the ball stand out the unthreaded hole, thereby eliminates the clearance between locating pin and the spare part, reaches the mesh of expanding, makes the work piece location more firm, reduces the error of later stage cutting, also can be suitable for different work pieces simultaneously, and the range of application is extensive;

2. the utility model is connected with the bottom of the pin body through the thread of the base of the positioning pin, so that the length of the pin body can be extended, the positioning pin can adapt to workpieces with different thicknesses, and the applicability of the product is enhanced;

3. the utility model discloses a slider is the slip in the spout, drives the ball and removes to the lateral wall of the round pin body to make the ball can outstanding unthreaded hole, play the purpose of hole enlargement.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic view of the side wall of the ball protruding pin body of the present invention;

FIG. 4 is a schematic perspective view of the jacking block, the supporting ring and the balls of the present invention;

fig. 5 is a schematic bottom view of the present invention;

fig. 6 is a schematic view of the present invention and between the work table and the workpiece.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can modify the present embodiments as required after reading the present specification without any inventive contribution, but only protected by the patent laws within the scope of the appended claims.

The present invention will be described in detail below with reference to the accompanying drawings.

The embodiment is as follows:

according to fig. 1-6, a positioning pin for a laser cutting machine comprises a pin body 1 with a hollow interior, a screw rod 2, a tightening block 3 and balls 4, wherein a threaded hole 11 is formed in the top of the pin body 1, the screw rod 2 is in threaded connection with the threaded hole 11, the bottom of the screw rod 2 is located in the pin body 1, the tightening block 3 is arranged at the bottom of the screw rod 2, an unthreaded hole 12 is formed in the side wall of the pin body 1 along the circumferential direction, the balls 4 are located between the tightening block 3 and the unthreaded hole 12, a support ring 5 is arranged at the bottom of the balls 4, the side wall of the support ring 5 is fixedly connected with the inner side wall of the pin body 1, a sliding groove 51 is formed in the position of the support ring 5 corresponding to the balls 4, the sliding direction of the sliding groove 51 is along the radial direction of the support ring 5, and the sliding groove 51 penetrates through the upper surface to the lower surface of the support ring 5, the sliding device is characterized in that a sliding block 52 is connected in the sliding groove 51 in a sliding mode, the top of the sliding block 52 is fixedly connected with the ball 4, the bottom of the sliding block is fixedly connected with an anti-falling plate 53, the sphere diameter of the ball 4 is larger than the ring width of the supporting ring 5, the jacking block 3 is in a conical body shape with a large top and a small bottom, and more than four balls 4 are uniformly distributed along the circumferential direction of the supporting ring 5.

According to fig. 2, the bottom cover of round pin body 1 has locating pin base 6, the external screw thread has been seted up to the bottom of round pin body 1, the internal thread with external screw thread assorted has been seted up to the inside wall of locating pin base 6, the top of locating pin base 6 is equipped with two fixed plates 61, the mounting hole 62 has been seted up on the fixed plate 61, anticreep board 53 is circular form.

The working principle is as follows:

referring to fig. 1-6, when in use, a groove for conveniently embedding the positioning pin base 6 is firstly formed on the workbench 8, then the positioning pin base 6 is embedded into the mounting hole, then a screw is connected with the workbench 8 by penetrating through the mounting hole 62 on the fixing plate 61, so that the positioning pin is mounted on the workbench, the later positioning is facilitated, then the pin body 1 is adjusted to the required height by being connected with the positioning pin base 6 through a thread, then a pin hole on the workpiece 7 is sleeved on the pin body 1, then the jacking block 3 is moved downwards by rotating the screw rod 2, so that the ball 4 on the sliding groove 51 is moved towards the side wall of the pin body 1, the ball 4 protrudes out of the unthreaded hole, the gap between the positioning pin and the part is eliminated, the purpose of expanding diameter is achieved, the positioning of the workpiece 7 is firmer, the error of later cutting is reduced, and different workpieces can be simultaneously applied, the application range is wide.

Claims

1. The utility model provides a locating pin for laser cutting machine which characterized in that: including inside hollow round pin body (1), screw rod (2), tight piece (3), ball (4) in top, round pin body (1) the top set up threaded hole (11), screw rod (2) with threaded hole (11) threaded connection just the bottom of screw rod (2) is located in round pin body (1), tight piece (3) in top is established the bottom of screw rod (2), unthreaded hole (12) have been seted up along the circumferencial direction to the lateral wall of round pin body (1), ball (4) are located tight piece (3) in top with between unthreaded hole (12).

2. The positioning pin for a laser cutting machine according to claim 1, characterized in that: the bottom of ball (4) is equipped with support ring (5), the lateral wall of support ring (5) with the inside wall fixed connection of the shank of the pin (1), support ring (5) correspond position department of ball (4) has seted up spout (51), the slip direction of spout (51) along the radial direction of support ring (5), spout (51) run through the upper surface to the lower surface of support ring (5), sliding connection has slider (52) in spout (51), the top of slider (52) with ball (4) fixed connection, the bottom fixedly connected with anticreep board (53) of slider.

3. The positioning pin for a laser cutting machine according to claim 2, characterized in that: the diameter of the ball (4) is larger than the width of the support ring (5).

4. The positioning pin for a laser cutting machine according to claim 2, characterized in that: the jacking block (3) is in a cone shape with a large upper part and a small lower part.

5. The positioning pin for a laser cutting machine according to claim 2, characterized in that: more than four balls (4) are uniformly distributed along the circumferential direction of the support ring (5).

6. The positioning pin for a laser cutting machine according to claim 2, characterized in that: the bottom cover of round pin body (1) has locating pin base (6), the external screw thread has been seted up to the bottom of round pin body (1), the internal thread with external screw thread assorted is seted up to the inside wall of locating pin base (6).

7. The positioning pin for a laser cutting machine according to claim 6, characterized in that: the top of locating pin base (6) is equipped with two fixed plates (61), mounting hole (62) have been seted up on fixed plate (61).

8. The positioning pin for a laser cutting machine according to claim 2, characterized in that: the anti-drop plate (53) is circular.