CN216478405U

CN216478405U - Positioning pin that positioning accuracy is high and prevent to drop again

Info

Publication number: CN216478405U
Application number: CN202122696119.5U
Authority: CN
Inventors: 蔡红
Original assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Current assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-10
Anticipated expiration: 2031-11-05

Abstract

The utility model provides a positioning pin with high positioning precision and capable of preventing falling, which belongs to the technical field of positioning pins and comprises a connecting piece, wherein the circumferential inner wall of the connecting piece is connected with a taper pin in a sliding way, the circumferential surface of the taper pin is connected with two nuts in a threaded way, and the circumferential surface of the taper pin is connected with a stop washer in a sliding way; and multiunit expanding mechanism, every group expanding mechanism all includes the sliding tray, the slip disk, the expansion piece, a spring, spacing subassembly and slip subassembly, the circumferential surface of taper pin is seted up to the sliding tray, one side end fixed connection in one side inner wall of sliding tray of spring, slip disk sliding connection in the circumference inner wall of sliding tray, expansion piece fixed connection in a side end of slip disk, it very easily drops to have solved ordinary taper pin, reduce the unnecessary incident, avoided the staff to cause the unnecessary injury, the work efficiency is improved, the waste of time and manpower resources is reduced.

Description

Positioning pin that positioning accuracy is high and prevent to drop again

Technical Field

The utility model belongs to the technical field of positioning pins, and particularly relates to a positioning pin which is high in positioning accuracy and can be prevented from falling off.

Background

Locating pins, elements that participate in limiting the degrees of freedom of an object, have found certain applications in some machines that move mechanically, primarily for two-dimensional position determination, locating pins, elements that participate in limiting the degrees of freedom of an object, controlling linear motion of an article in three axes X, Y, Z, and six degrees of freedom of rotational motion around X, Y, Z, with the workpiece hole as the locating reference. In a mold formed of two or more parts, the pins are designed to accurately position adjacent parts of the mold.

In the prior art, the required positioning precision is too high in the connection of the rotating parts, and the common taper pin is easy to fall off, so that unnecessary safety accidents are caused, unnecessary injuries are caused to workers, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning pin which is high in positioning accuracy and capable of preventing falling off, and aims to solve the problems that in the prior art, in the process of connecting a rotating part, the required positioning accuracy is too high, a common taper pin is easy to fall off, unnecessary safety accidents are caused, unnecessary injuries are caused to workers, and the working efficiency is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a positioning pin that positioning accuracy is high and prevent again to drop, includes: the connecting piece is connected with a taper pin in a sliding manner on the circumferential inner wall of the connecting piece, two nuts are connected with the circumferential surface of the taper pin in a threaded manner, and a stop washer is connected with the circumferential surface of the taper pin in a sliding manner; and multiunit expanding mechanism, every group expanding mechanism all includes sliding tray, slip disk, expansion piece, spring, spacing subassembly and slip subassembly, the sliding tray is seted up in the circumference surface of taper pin, a side end fixed connection of spring is in one side inner wall of sliding tray, slip disk sliding connection is in the circumference inner wall of sliding tray, expansion piece fixed connection is in a side of slip disk, spacing subassembly and slip subassembly all set up in the taper pin and are connected the slip direction in order to realize control and restriction slip disk with the slip disk.

As a preferable scheme of the utility model, each group of limiting assemblies comprises a limiting groove and a limiting block, the limiting groove is formed in the circumferential inner wall of the sliding groove, the limiting block is connected to the inner wall of one side of the limiting groove in a sliding manner, and one side end of the limiting block is fixedly connected with one side end of the sliding round block.

As a preferable scheme of the present invention, each of the sliding assemblies includes a push-pull groove and a sliding plate, the push-pull groove is formed in an upper side of the sliding circular block, a lower end of the sliding plate movably penetrates through a lower inner wall of the push-pull groove, and a lower end of the sliding plate is fixedly connected to a circumferential surface of the sliding circular block.

In a preferred embodiment of the present invention, the taper of the taper pin is 1: 50.

In a preferred embodiment of the present invention, the taper pin has a minimum diameter of 50.5mm, and the taper pin hole has a minimum diameter of 50 mm.

In a preferred embodiment of the present invention, the circumferential surfaces of the plurality of sliding round blocks are tangent to the circumferential inner walls of the plurality of sliding grooves.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this scheme, drive slip circle piece through promoting the sliding plate and carry out left side slip, drive the expansion piece and stretch at the circumference inner wall of connector to accomplish the support to the connector, solved ordinary taper pin and easily fallen, reduced the unnecessary incident, avoided the staff to cause the unnecessary injury, improved work efficiency, reduced the waste of time and manpower resources.

2. In this scheme, the circumference surface through the circle piece that will slide and the circumference inner wall of sliding tray are tangent to strengthened four group's expanding mechanism's stability and joint strength, strengthened the expansion support dynamics to the coupling member then, solved ordinary taper pin and easily drove, reduced the unnecessary incident.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of the present invention;

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

fig. 3 is a partial enlarged view of the utility model at a in fig. 2.

In the figure: 1. a coupling member; 2. a taper pin; 3. a nut; 4. a stop washer; 5. a sliding groove; 6. sliding the round block; 7. an expansion block; 8. a limiting groove; 9. a limiting block; 10. a spring; 11. a push-pull groove; 12. a sliding plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present invention provides the following technical solutions:

the utility model provides a positioning pin that positioning accuracy is high and prevent again to drop, includes: the connecting piece 1 is characterized in that the circumferential inner wall of the connecting piece 1 is connected with a taper pin 2 in a sliding mode, the circumferential surface of the taper pin 2 is connected with two nuts 3 in a threaded mode, and the circumferential surface of the taper pin 2 is connected with a stop washer 4 in a sliding mode; and multiunit expanding mechanism, every group expanding mechanism all includes sliding tray 5, slip circle piece 6, expansion block 7, spring 10, spacing subassembly and sliding assembly, sliding tray 5 sets up in the circumference surface of taper pin 2, a side end fixed connection of spring 10 is in one side inner wall of sliding tray 5, 6 sliding connection in the circumference inner wall of sliding tray 5 of slip circle piece, expansion block 7 fixed connection in a side end of slip circle piece 6, spacing subassembly and sliding assembly all set up in taper pin 2 and are connected in order to realize control and restriction slip circle piece 6's slip direction with slip circle piece 6.

In the embodiment of the utility model, the conical pin 2 is tightened into the inner wall of the circumference of the connecting piece 1, so as to tighten the two nuts 3 and the stop washer 4, thereby not only ensuring the precise positioning of the two components, but also preventing the conical pin 2 from falling off during the rotation, the lower end of the sliding plate 12 is conveniently movably penetrated and fixed on the circumferential surface of the sliding round block 6 through the push-pull groove 11 arranged on the upper side of the sliding round block 6, thereby controlling the sliding plate 12 to slide and simultaneously driving the sliding round block 6 to slide left and right, through the limit grooves 8 arranged on the inner walls of the upper and lower sides of the sliding groove 5, as the left end of the limit block 9 and the right end of the sliding round block 6 are fixed, the sliding round block 6 drives the limit block 9 to slide left and right on the inner wall of the rear side of the limit groove 8 while sliding, so as to limit the sliding round block 6, and prevent the sliding round block 6 from separating from the inner wall of the circumference of the sliding groove 5 during the sliding, make spring 10 extrusion carry out length contraction under the effect of power, thereby the convenience inserts taper pin 2 into the circumference inner wall of connector 1, sliding plate 12 through unclamping the promotion is under the effect of power, make spring 10 stretch and carry out the length extension, thereby make expansion piece 7 support the circumference inner wall at connector 1, play and support fixed effect to taper pin 2, thereby prevent that taper pin 2 breaks away from when the installation is used the circumference inner wall of connector 1, it is very easily dropped to have solved ordinary taper pin 2, reduce the unnecessary incident, avoided the staff to cause the unnecessary injury, the work efficiency is improved, the waste of time and manpower resources is reduced.

Referring to fig. 3 specifically, each group of limiting assemblies includes a limiting groove 8 and a limiting block 9, the limiting groove 8 is formed in the inner wall of the circumference of the sliding groove 5, the limiting block 9 is connected to the inner wall of one side of the limiting groove 8 in a sliding manner, and one side end of the limiting block 9 is fixedly connected to one side end of the sliding circular block 6.

In this embodiment: through the spacing groove 8 of seting up both sides inner wall about the sliding tray 5, because the left end of stopper 9 and the 6 right-hand members of slip circle piece are fixed to drive stopper 9 when slip circle piece 6 is gliding at the rear side inner wall horizontal slip of spacing groove 8, play and carry out spacing effect to slip circle piece 6, avoid slip circle piece 6 to break away from the circumference inner wall of sliding tray 5 when sliding.

Specifically referring to fig. 3, each set of sliding assemblies includes a push-pull slot 11 and a sliding plate 12, the push-pull slot 11 is disposed on the upper side of the sliding round block 6, the lower end of the sliding plate 12 movably penetrates through the lower inner wall of the push-pull slot 11, and the lower end of the sliding plate 12 is fixedly connected to the circumferential surface of the sliding round block 6.

In this embodiment: through the push-pull groove 11 arranged on the upper side of the sliding round block 6, the lower end of the sliding plate 12 can be conveniently movably penetrated and fixed on the circumferential surface of the sliding round block 6, so that the sliding plate 12 is controlled to slide, the sliding round block 6 is driven to slide left and right, and the effect of limiting the sliding round block 6 is achieved.

Specifically referring to fig. 1, the taper of the taper pin 2 is 1: 50.

In this embodiment: the taper ratio of the taper pin 2 is 1:50, so that the best use effect of the device can be achieved, the problem that the common taper pin 2 is easy to fall off is solved, and unnecessary safety accidents are reduced.

Specifically, referring to fig. 2, the minimum diameter of the taper pin 2 is 50.5mm, and the minimum diameter of the taper pin hole is 50 mm.

In this embodiment: through the diameter with taper pin 2 for 50.5mm, and the diameter of taper pin hole is 50mm, has strengthened the inseparable degree of taper pin 2 and connector 1 to reach the best result of use of this device, then improved work efficiency.

Referring to fig. 3, the circumferential surfaces of the sliding circular blocks 6 are tangent to the circumferential inner walls of the sliding grooves 5.

In this embodiment: the circumference surface of the sliding round block 6 and the circumference inner wall of the sliding groove 5 are tangent, so that the stability and the connection strength of four groups of expansion mechanisms are enhanced, the expansion supporting force on the connecting piece 1 is enhanced, the problem that the common taper pin 2 is easy to fall off is solved, and unnecessary safety accidents are reduced.

The working principle and the using process of the utility model are as follows: through tighten into behind the circumference inner wall of connector 1 with taper pin 2, thereby screw up two nuts 3 and lock washer 4, the precision positioning of two parts has been guaranteed, and the danger that taper pin 2 drops in the rotation has been prevented, slide through control sliding plate 12 and drive slip circle piece 6 and carry out the horizontal slip, thereby slip circle piece 6 is gliding drives stopper 9 in the rear side inner wall horizontal slip of spacing groove 8 simultaneously, play and carry out spacing effect to slip circle piece 6, make spring 10 extrusion carry out length contraction under the effect of force, thereby conveniently insert the circumference inner wall of connector 1 with taper pin 2, under the effect of the sliding plate 12 through loosening the promotion, make spring 10 stretch and carry out length extension, thereby make expansion block 7 support the circumference inner wall at connector 1, play and support fixed effect to taper pin 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a positioning accuracy is high and prevent the locating pin that drops again which characterized in that includes: the connecting piece (1), the circumference inner wall of the connecting piece (1) is connected with a taper pin (2) in a sliding way, the circumference surface of the taper pin (2) is connected with two nuts (3) in a threaded way, and the circumference surface of the taper pin (2) is connected with a stop washer (4) in a sliding way; and multiunit expanding mechanism, every group expanding mechanism all includes sliding tray (5), slip circle piece (6), expansion piece (7), spring (10), spacing subassembly and sliding assembly, the circumference surface in taper pin (2) is seted up in sliding tray (5), one side end fixed connection in one side inner wall of sliding tray (5) of spring (10), slip circle piece (6) sliding connection in the circumference inner wall of sliding tray (5), expansion piece (7) fixed connection in one side end of slip circle piece (6), spacing subassembly and sliding assembly all set up in taper pin (2) and are connected the slip direction in order to realize control and restriction slip circle piece (6) with slip circle piece (6).

2. The positioning pin according to claim 1, which has high positioning accuracy and is prevented from falling off, and is characterized in that: every group spacing subassembly all includes spacing groove (8) and stopper (9), the circumference inner wall of sliding tray (5) is seted up in spacing groove (8), stopper (9) sliding connection is in one side inner wall of spacing groove (8), a side end of stopper (9) and a side end fixed connection of slip circle piece (6).

3. The positioning pin according to claim 2, which has high positioning accuracy and is prevented from falling off, wherein: each group of sliding assemblies comprises a push-pull groove (11) and a sliding plate (12), the push-pull groove (11) is formed in the upper side of the sliding round block (6), the lower end of the sliding plate (12) movably penetrates through the lower inner wall of the push-pull groove (11), and the lower end of the sliding plate (12) is fixedly connected to the circumferential surface of the sliding round block (6).

4. The positioning pin according to claim 3, wherein the positioning pin has high positioning accuracy and is prevented from falling off, and the positioning pin comprises: the taper of the taper pin (2) is 1: 50.

5. The positioning pin according to claim 4, which has high positioning accuracy and is prevented from falling off, wherein: the minimum diameter of the taper pin (2) is 50.5mm, and the minimum diameter of the taper pin hole is 50 mm.

6. The positioning pin according to claim 5, wherein the positioning pin has high positioning accuracy and is prevented from falling off, and the positioning pin comprises: the circumferential surfaces of the sliding round blocks (6) are tangent to the circumferential inner walls of the sliding grooves (5).