CN210257251U

CN210257251U - Novel rubber packing ring expansion tool

Info

Publication number: CN210257251U
Application number: CN201920693504.4U
Authority: CN
Inventors: 张小北
Original assignee: Suzhou Aichi Gauss Motors Co ltd
Current assignee: Suzhou Aichi Gauss Motors Co ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-07
Anticipated expiration: 2029-05-15

Abstract

The utility model provides a novel rubber gasket expansion tool, which comprises an expansion cylinder, a connecting shaft and expansion pins, wherein each expansion pin comprises an expansion base and a pin body, the expansion base is composed of a plurality of base units, the pin units are arranged on the base units, and the pin bodies are composed of a plurality of pin units; when expanding the rubber circle, the rubber circle cover is on the pin body, the expansion cylinder passes through the separation of a plurality of expansion bases of connecting axle drive to drive the separation of pin unit, thereby realize the expansion to the rubber packing ring. Through the expansion tool, the problem that the rubber gasket of the existing expansion tool is difficult to sleeve and laborious is solved, the expansion size is accurate, and the forming time is controllable; the labor intensity of workers is reduced, the expansion efficiency is improved, and the expansion quality is ensured.

Description

Novel rubber packing ring expansion tool

Technical Field

The utility model belongs to the technical field of the expansion frock of rubber packing ring and specifically relates to a novel rubber packing ring expansion frock is related to.

Background

The existing expansion tool consists of two parts, namely a handle and an expansion rod. The handle is used for facilitating a user to hold and fix, and the expansion rod is a metal rod with the diameter phi 3 and the length of 500 mm. The metal rod is used for expanding and supporting by utilizing the deviation of the diameter of the metal rod and the diameter physical dimension of the product. The conditions at the time of use are: the handle of the expansion tool is covered with the left hand with strength, the hole of the product (the sealing washer) is overlapped with the expansion rod of the expansion tool by the right hand, then the product is sleeved downwards with strength to the bottommost part, and after one minute, the sleeved product is pulled out upwards along the expansion rod.

However, the size of the expansion rod, namely the size of the product after expansion is required, and the size of the product before expansion is very difficult to sleeve relative to the difference of the product after expansion, so that the operation is very inconvenient; and need embolia the product in proper order because the length of expansion lever 500mm, then wait for the fashioned time of expansion, then taking off the product in proper order, it is not high to cause efficiency in the use, in addition, because the size of expansion lever diameter is the fixed value, for the use of emboliaing that the product can be better, the numerical value of diameter size processing is less relatively, because the numerical value of expansion is less, the material of product is rubber, and it is flexible easily, and the effect that leads to after the expansion is not obvious.

Disclosure of Invention

In order to solve the problem, the utility model provides a novel rubber packing ring expansion frock.

The main contents of the utility model include:

a novel rubber gasket expansion tool comprises a workbench and an expansion cylinder, wherein an expansion pin is arranged on the workbench, a piston rod of the expansion cylinder is connected with a connecting shaft, the connecting shaft comprises a shaft rod body and a shaft rod head, and the shaft rod head is in a conical or round platform shape; the expansion pin comprises an expansion base and a pin body, and the diameter of the pin body is smaller than that of an inner hole of the rubber gasket before expansion; the lower surface of the expansion base is provided with a connecting groove which is matched with the head part of the shaft lever; the expansion base comprises a plurality of base units, pin units are fixedly arranged on the upper surfaces of the base units, and the pin bodies are formed by the pin units; the outer side of the base unit is provided with a positioning block, and a return spring is connected between the positioning block and the base unit.

Preferably, the expansion base further comprises a supporting plate, the supporting plate is arranged above the expansion base, a limiting forming hole is formed in the center of the supporting plate, and the diameter of the limiting forming hole is the same as that of an inner hole of the rubber gasket after expansion; the pin body passes the spacing shaping hole and extends to the top of backup pad.

Preferably, the number of the base units is N, N is greater than or equal to 2, the base units are in a shape of one-half of a circle, and the pin unit is arranged on the upper end face of the base unit and located at the circle center of the base unit; the base unit bottom has seted up the unit cell, and a plurality of the unit cell encloses into the spread groove.

Preferably, the pin unit has a one-nth circle shape.

Preferably, the workbench is provided with a mounting through hole, the expansion cylinder is fixed on the lower surface of the workbench, and the piston rod of the expansion cylinder and the connecting shaft penetrate through the mounting through hole and can move up and down in the mounting through hole.

Preferably, the driving cylinder is connected with external compressed air through an air pipe, and a handle air valve is arranged on the air pipe.

The beneficial effects of the utility model reside in that: the utility model provides a novel rubber gasket expansion tool, which comprises an expansion cylinder, a connecting shaft and expansion pins, wherein each expansion pin comprises an expansion base and a pin body, the expansion base is composed of a plurality of base units, the pin units are arranged on the base units, and the pin bodies are composed of a plurality of pin units; when expanding the rubber circle, the rubber circle cover is on the pin body, the expansion cylinder passes through the separation of a plurality of expansion bases of connecting axle drive to drive the separation of pin unit, thereby realize the expansion to the rubber packing ring. Through the expansion tool, the problem that the rubber gasket of the existing expansion tool is difficult to sleeve and laborious is solved, the expansion size is accurate, and the forming time is controllable; the labor intensity of workers is reduced, the expansion efficiency is improved, and the expansion quality is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the expanding cylinder and the connecting pin of the present invention;

fig. 4 is a side view of the expansion pin.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

Please refer to fig. 1 and 4. The utility model provides a novel rubber packing ring expansion frock, including workstation 1, the installation through-hole has been seted up on workstation 1, workstation 1's lower surface is provided with expansion cylinder 10, expansion cylinder 10 is fixed to be set up workstation 1's lower surface, its piston rod pass the installation through-hole upwards extends, just expansion cylinder 10's piston rod is connected with connecting axle 30, connecting axle 30 sets up in the installation through-hole and towards workstation 1's upper surface extends, simultaneously, expansion cylinder 10 passes through the trachea and is connected with external compressed air, and external compressed air passes through the trachea promptly and gets into in expansion cylinder 10, thereby control expansion cylinder 10 works dispose handle pneumatic valve 100 on the trachea, control through handle pneumatic valve 100 tracheal break-make.

The rubber washer to be expanded is fitted over the expansion pin 20, and the rubber washer is expanded by the expansion pin 20. Specifically, the expansion pin 20 is connected to the expansion cylinder 10 through the connecting shaft 30, the expansion pin 20 includes an expansion base 200 and a pin body 210, the expansion base 200 includes a plurality of base units 200a, correspondingly, the pin body 210 includes a plurality of pin units 210a, and the pin units 210a are fixed on the base units 200a, and the two are in one-to-one correspondence, that is, one pin unit 210a is fixed on each base unit 200a, that is, the pin body 210 is composed of a plurality of pin units 210 a; in one embodiment, the base unit 200a and the pin unit 210a are integrally formed.

In one embodiment, as shown in fig. 2, the number of the base units 200a is 4, that is, each base unit 200a is a quarter circle, and four base units 200a enclose a full circle shape, wherein the pin units 210a are located at the corresponding circle, and when the four base units 200a are combined into a full circle, the structure enclosed by the four pin units 210a is smaller than the diameter of the inner hole of the rubber gasket to be expanded, so that the rubber gasket can be easily sleeved on the pin body; in one embodiment, the pin units are also in a quarter-circle shape, in other embodiments, the pin units can be in other shapes, and the four pin units 210a are located on the same circumferential surface, and the diameter of the circumferential surface is smaller than the diameter of the inner hole of the rubber gasket before expansion.

In other embodiments, the number of the base units 200a may also be 2, 3, or more, the number of the base units 200a is N, N is greater than or equal to 2, the base unit 200a is in a shape of a circle of one-half N, and the pin unit 210a is disposed on the upper end surface of the base unit 200a and located at the center of the circle of the base unit 200 a; the bottom of the base unit 200a is provided with a unit groove 200b, and the unit grooves 200b are enclosed to form the connecting grooves. Similarly, the pin units 210a may have a shape of a circle divided by N, or may have another shape such as a cylinder, as long as the diameter of the circumferential surface on which the N pin units 210a are located is smaller than the inner hole diameter of the rubber washer before expansion.

Further, the connecting shaft 30 includes a shaft body 300 and a shaft head 310, the shaft body 300 is connected to the piston rod of the expanding cylinder 10, the shaft head 310 is located on the upper portion of the shaft body 300, and the shaft head 310 is in a conical or circular truncated cone shape, and correspondingly, a connecting groove matched with the shaft head 310 is formed in the lower surface of the expanding base 200, and the connecting groove is formed by unit grooves 200b respectively formed in the lower surface of the base unit 200a, and when the expanding cylinder 10 drives the connecting shaft 30 to ascend, the base unit 200 is mutually separated to drive the pin unit 210a to move outwards, so that the inner hole of the rubber gasket is expanded to a required size.

In other embodiments, the present invention further comprises a supporting plate 60, wherein the supporting plate 60 is disposed above the expanding base 200, and a limiting forming hole is formed in the center of the supporting plate 60, and the diameter of the limiting forming hole is the same as the diameter of the inner hole of the rubber gasket after expansion; the pin body 210 passes through the limit forming hole and extends to the upper part of the supporting plate 60; namely, the supporting plate 60 provides a reference for the expansion dimension of the rubber packing, ensuring the precision of the expansion.

In order to ensure the stability of the expansion process and the timely return after the expansion, a positioning block 40 is disposed outside the base unit 200a, and a return spring 50 is connected between the positioning block 40 and the base unit 200a, i.e., after the expansion is completed, the expansion cylinder 10 disconnects the driving force to the base unit 200a, and the return spring 50 returns the base unit 200a so as to remove the rubber gasket.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The novel rubber gasket expansion tool is characterized by comprising a workbench and an expansion cylinder, wherein an expansion pin is arranged on the workbench, a piston rod of the expansion cylinder is connected with a connecting shaft, the connecting shaft comprises a shaft rod body and a shaft rod head, and the shaft rod head is in a conical or round platform shape; the expansion pin comprises an expansion base and a pin body, and the diameter of the pin body is smaller than that of an inner hole of the rubber gasket before expansion; the lower surface of the expansion base is provided with a connecting groove which is matched with the head part of the shaft lever; the expansion base comprises a plurality of base units, pin units are fixedly arranged on the upper surfaces of the base units, and the pin bodies are formed by the pin units; the outer side of the base unit is provided with a positioning block, and a return spring is connected between the positioning block and the base unit.

2. The novel rubber gasket expanding tool according to claim 1, further comprising a supporting plate, wherein the supporting plate is arranged above the expanding base, a limiting forming hole is formed in the center of the supporting plate, and the diameter of the limiting forming hole is the same as the diameter of an inner hole of the rubber gasket after expansion; the pin body passes the spacing shaping hole and extends to the top of backup pad.

3. The novel rubber gasket expanding tool as claimed in claim 1 or 2, wherein the number of the base units is N, N is greater than or equal to 2, the base units are in a shape of a circle of one-half N, and the pin unit is arranged on the upper end face of the base unit and located at the center of the circle of the base unit; the base unit bottom has seted up the unit cell, and a plurality of the unit cell encloses into the spread groove.

4. The novel rubber gasket expanding tooling of claim 3, wherein the pin unit is in a shape of a circle of a quarter of N.

5. The novel rubber gasket expanding tool as claimed in claim 1 or 2, wherein the workbench is provided with an installation through hole, the expanding cylinder is fixed on the lower surface of the workbench, and a piston rod of the expanding cylinder and the connecting shaft pass through the installation through hole and can move up and down in the installation through hole.

6. The novel rubber gasket expanding tool as claimed in claim 1 or 2, wherein the expanding cylinder is connected with external compressed air through an air pipe, and a handle air valve is arranged on the air pipe.