CN214054828U

CN214054828U - Quick-assembly chuck for polishing equipment

Info

Publication number: CN214054828U
Application number: CN202022912870.XU
Authority: CN
Inventors: 闫乐伟
Original assignee: Dongguan Hengtian Surface Treatment Material Co ltd
Current assignee: Dongguan Hengtian Surface Treatment Material Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-27
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a fast-assembling chuck for polishing equipment for connect the sleeve pipe of abrasive disc axle, grinding pin, form logical chamber on the sleeve pipe, the abrasive disc axle stretches into logical chamber from the sleeve pipe upper end, the grinding pin stretches into logical chamber from the sleeve pipe lower extreme, still including locating sheathed tube pressing piece, the outstanding fixture block that forms of upper end side direction of pressing piece, elastic component is established to the lower extreme of pressing piece, elastic component one end butt in pressing piece lower extreme, elastic component other end butt in the sleeve pipe the middle part of pressing piece is established and is used for with the articulated position of sleeve pipe, set up first joint hole on the grinding pin, set up the second joint hole relative with first joint hole on the sleeve pipe, the fixture block of pressing piece stretches into first joint downthehole from the second joint hole to make the sleeve pipe be connected with the grinding pin. The utility model provides a fast-assembling chuck for polishing equipment, the dismouting is swiftly convenient.

Description

Quick-assembly chuck for polishing equipment

Technical Field

The utility model relates to a polishing equipment technical field, specifically speaking relates to a fast-assembling chuck for polishing equipment.

Background

Before polishing a workpiece, the workpiece to be polished is mounted on a grinding rod, and then the grinding rod is mounted on a polishing device, wherein the connection between the grinding rod and the polishing device is generally realized by a coupler.

In the traditional coupler, a circle of ball is implanted in the coupler, the back of the ball is provided with a spring to form elastic connection, and the ball is extruded by external force to move towards the periphery of the outer side; the matched grinding rod is provided with a circle of groove at the center of the ball, when the grinding rod extrudes the ball to move outwards, the grinding rod moves upwards, and when the clamping groove moves to the center surface of the ball, the ball rebounds to clamp the grinding rod, so that clamping is completed; the structure of the scheme is complex, and the number of spare and accessory parts is large; the precision requirement of the part processing dimension chain is high; the difficulty of assembling the coupler is high; the service life is short; certain technical requirements are required for clamping personnel; the link rod matched with the connecting rod is provided with a groove at the position needing the strength most, so that the strength is not enough, and the link rod is easy to break under high load; when the connecting rod and the coupler are clamped, the connecting rod and the coupler are not easy to clamp in place, and whether a virtual clamp phenomenon exists or not cannot be confirmed, so that the grinding rod is easy to drop;

in addition, the technical scheme discloses a connector, a pin is drilled and installed on a grinding rod, the grinding rod is aligned through a connector installation hole and then inserted into the connector, then the connector is rotated for a certain angle, the pin on the grinding rod is fixed in a groove on the connector, and then the clamping and positioning work of the grinding rod is completed by rotating a positioning ring on the connector; according to the scheme, the torque generated by rotation of all positioning and equipment output is concentrated on one pin, so that the pin has overlarge bearing capacity, is extremely easy to break in the using process, and clamping failure is caused, so that a lot of products are scrapped; and the clamping action is too complicated, the clamping time is long, and the automatic clamping scheme cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fast-assembling chuck for polishing equipment, the dismouting is swift convenient.

The utility model discloses a technical scheme that a fast-assembling chuck for polishing equipment adopted is:

the utility model provides a fast-assembling chuck for polishing equipment for the sleeve pipe of connecting abrasive disc axle, grinding pin, form logical chamber on the sleeve pipe, the abrasive disc axle stretches into logical chamber from the sleeve pipe upper end, the grinding pin stretches into logical chamber from the sleeve pipe lower extreme, still including locating sheathed tube pressing part, the outstanding fixture block that forms in upper end side direction of pressing part, the elastic component that forms of pressing part, elastic component one end butt is established to the lower extreme of pressing part in the pressing part lower extreme, elastic component other end butt in the sleeve pipe the middle part of pressing part is established and is used for with the articulated position of sleeve pipe, set up first joint hole on the grinding pin, set up the second joint hole relative with first joint hole on the sleeve pipe, the fixture block of pressing part stretches into first joint downthehole from the second joint hole to make the sleeve pipe be connected with the grinding pin.

According to a preferable scheme, the outer side wall of the sleeve is provided with a containing groove, the second clamping hole is formed in the containing groove, the hinge joint of the pressing piece is arranged in the containing groove, and the clamping block of the pressing piece extends into the second clamping hole.

Preferably, the hinge position of the pressing piece is provided with a pin, and two ends of the pin are inserted into the side walls of two sides of the accommodating groove, so that the pressing piece is hinged in the accommodating groove.

Preferably, the lower end surface of the latch forms a guide slope.

Preferably, the grinding disc device further comprises a pin shaft, and the pin shaft penetrates through the sleeve and the grinding disc shaft so that the sleeve is in transmission connection with the grinding disc shaft.

As a preferred scheme, a first rotation limiting surface is formed at the lower end of the through cavity, and a second rotation limiting surface is formed at one end, extending into the through cavity, of the grinding rod, so that the first rotation limiting surface and the second rotation limiting surface are in matched transmission.

The utility model discloses a quick-assembling chuck for polishing equipment's beneficial effect is: when the grinding rod is installed, the grinding rod is inserted from the lower end of the through cavity until the grinding rod contacts the lower end face of the clamping block extending into the through cavity, the grinding rod continues to move upwards, the pressing piece is pushed to rotate around the hinge joint, so that the clamping block is withdrawn from the through cavity, the clamping block is located in the second clamping hole at the moment, and the elastic piece located at the lower end of the pressing piece is in a compression state. When the grinding rod continues to upwards align the second clamping hole to the first clamping hole, under the action of the elastic piece, the pressing piece reversely rotates around the hinge joint, so that the clamping block extends into the first clamping hole from the second clamping hole, and the grinding rod is installed. The mounting action is simple and rapid, and the automatic clamping of the grinding rod is conveniently realized.

The first rotation limiting surface of the through cavity is matched with the second rotation limiting surface of the grinding rod to transfer force, so that the torque borne by the movable plug-in is reduced, and the reliability is improved.

Drawings

Fig. 1 is a schematic structural view of the quick-assembly chuck for polishing equipment of the present invention.

Fig. 2 is an exploded view of the quick-assembly chuck of the present invention for use in a polishing apparatus.

Fig. 3 is a schematic structural view of the pressing member of the quick-assembly chuck of the polishing apparatus of the present invention.

Figure 4 is an elevation view of a sleeve of the quick-install chuck of the present invention for use with a polishing apparatus.

Figure 5 is a top view of the sleeve of the quick-mount chuck for a polishing apparatus of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, a quick-mounting chuck for a polishing device is used for connecting a grinding disc shaft 10 and a sleeve 30 of a grinding rod 20, wherein a through cavity 31 is formed on the sleeve 30, the grinding disc shaft 10 extends into the through cavity 31 from the upper end of the sleeve 30, and the grinding rod 20 extends into the through cavity 31 from the lower end of the sleeve 30.

Referring to fig. 2 and 3, the quick-assembly chuck further includes a pressing member 40 disposed on the sleeve 30. The upper end of the pressing member 40 protrudes laterally to form a latch 41, the lower end of the pressing member 40 is provided with an elastic member 50, one end of the elastic member 50 abuts against the lower end of the pressing member 40, and the other end of the elastic member 50 abuts against the sleeve 30. A hinge 42 for the hinge connection with the sleeve 30 is provided in the middle of the pressing member 40.

The grinding rod 20 is provided with a first clamping hole 21, the sleeve 30 is provided with a second clamping hole 32 opposite to the first clamping hole 21, and the fixture block 41 of the pressing piece 40 extends into the first clamping hole 21 from the second clamping hole 32, so that the sleeve 30 is connected with the grinding rod 20.

When the grinding rod 20 is installed, the grinding rod 20 is inserted from the lower end of the through cavity 31 until the grinding rod contacts the lower end face of the fixture block 41 extending into the through cavity 31, the grinding rod 20 continues to move upwards, the pressing piece 40 is pushed to rotate around the hinge joint 42, so that the fixture block 41 exits from the through cavity 31, at the moment, the fixture block 41 is located in the second clamping hole 32, and the elastic piece 50 located at the lower end of the pressing piece 40 is in a compression state. When the grinding rod 20 continues to move upwards until the first clamping hole 21 is aligned with the second clamping hole 32, the pressing piece 40 reversely rotates around the hinge joint 42 under the action of the elastic piece 50, so that the fixture block 41 extends into the first clamping hole 21 from the second clamping hole 32, and the installation of the grinding rod 20 is completed.

Referring to fig. 2, 3 and 4, an accommodating groove 33 is formed on an outer side wall of the sleeve 30, and the second fastening hole 32 is formed in the accommodating groove 33. The hinge joint 42 of the pressing member 40 is disposed in the receiving groove 33, and the latch 41 of the pressing member 40 extends into the second latch hole 32. Specifically, the hinge portion 42 is provided with a pin, and both ends of the pin are inserted into the side walls of both sides of the accommodating groove 33, so that the pressing member 40 is hinged to the accommodating groove 33.

The lower end surface of the latch 41 forms a guide slope 411. When the grinding pin 20 is mounted, the tip of the grinding pin 20 first contacts the lead-in chamfer 411. The rotation angle of the pressing member 40 is reduced by providing the guide slope 411.

The elastic element 50 is preferably a spring, in order to facilitate the installation of the elastic element 50, a limiting hole 331 is formed in the accommodating groove 33, one end of the elastic element 50 extends into the limiting hole 331, correspondingly, the lower end of the side wall of the pressing element 40 is recessed to form another limiting hole a43, and the other end of the elastic element 50 extends into the limiting hole a 43. The lower end of the sidewall of the pressing member 40 is chamfered to form an escape area, and the elastic member 50 is disposed in the escape area.

The quick-assembling chuck further comprises a pin shaft 60, wherein the pin shaft 60 penetrates through the sleeve 30 and the grinding disc shaft 10, so that the sleeve 30 is in transmission connection with the grinding disc shaft 10.

Referring to fig. 2 and 5, a first rotation limiting surface 311 is formed at the lower end of the through cavity 31, and a second rotation limiting surface 22 is formed at one end of the grinding rod 20 extending into the through cavity 31, so that the first rotation limiting surface 311 and the second rotation limiting surface 22 are in matched transmission. So as to reduce the torque born by the movable plug-in and improve the reliability.

The first rotation limiting surfaces 311 are four planes formed at the lower end of the inner wall of the through cavity 31, the four planes enclose a rectangular mouth shape, correspondingly, the second rotation limiting surfaces 22 are four planes formed at the end part of the grinding rod 20, and the four planes enclose a rectangular column.

The utility model discloses a fast-assembling chuck for polishing equipment, during installation grinding pin 20, grinding pin 20 inserts from leading to chamber 31 lower extreme, to contacting the lower terminal surface that stretches into fixture block 41 that leads to chamber 31, grinding pin 20 continues upwards, promotes pressing member 40 and changes around articulated position 42 to make fixture block 41 withdraw from leading to chamber 31, fixture block 41 is located second joint hole 32 this moment, and the elastic component 50 that is located pressing member 40 lower extreme is in compression state. When the grinding rod 20 continues to move upwards until the first clamping hole 21 is aligned with the second clamping hole 32, the pressing piece 40 reversely rotates around the hinge joint 42 under the action of the elastic piece 50, so that the fixture block 41 extends into the first clamping hole 21 from the second clamping hole 32, and the installation of the grinding rod 20 is completed. The mounting action is simple and rapid, and the automatic clamping of the grinding rod 20 is conveniently realized.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A fast-assembling chuck for a polishing device is used for connecting a grinding disc shaft and a sleeve of a grinding rod, a through cavity is formed on the sleeve, the grinding disc shaft extends into the through cavity from the upper end of the sleeve, the grinding rod extends into the through cavity from the lower end of the sleeve, and the fast-assembling chuck is characterized in that,

the device also comprises a pressing piece arranged on the sleeve, the upper end of the pressing piece protrudes laterally to form a clamping block, the lower end of the pressing piece is provided with an elastic piece, one end of the elastic piece is abutted against the lower end of the pressing piece, the other end of the elastic piece is abutted against the sleeve, the middle part of the pressing piece is provided with a hinge joint used for being hinged with the sleeve,

the grinding rod is provided with a first clamping hole, the sleeve is provided with a second clamping hole opposite to the first clamping hole, and a clamping block of the pressing piece extends into the first clamping hole from the second clamping hole, so that the sleeve is connected with the grinding rod.

2. The quick-assembly chuck for polishing devices as claimed in claim 1, wherein the outer sidewall of the sleeve defines a receiving groove, the second engaging hole is defined in the receiving groove,

the hinge joint of the pressing piece is arranged in the accommodating groove, and the clamping block of the pressing piece extends into the second clamping hole.

3. The quick-assembling chuck for polishing apparatus according to claim 2, wherein the hinge portion of the pressing member is provided with a pin, and both ends of the pin are inserted into both side walls of the receiving groove, so that the pressing member is hinged to the receiving groove.

4. The quick-install chuck for polishing apparatus as claimed in claim 2, wherein the lower end surface of said latch is formed with a guide slope.

5. The quick-mount chuck for polishing apparatus as set forth in any one of claims 1 to 4, further comprising a pin shaft passing through the sleeve and the grinding plate shaft for drivingly connecting the sleeve and the grinding plate shaft.

6. The quick-assembly chuck for polishing apparatus according to any one of claims 1 to 4, wherein the lower end of the through cavity forms a first rotation limiting surface, and the end of the grinding rod extending into the through cavity forms a second rotation limiting surface, so that the first rotation limiting surface and the second rotation limiting surface are in transmission engagement.