CN108857854B

CN108857854B - Grinding device and clamping seat thereof

Info

Publication number: CN108857854B
Application number: CN201810121691.9A
Authority: CN
Inventors: 叶祐立; 江晁澄; 戴蔡乐
Original assignee: Top Most Technology Co ltd
Current assignee: Top Most Technology Co ltd
Priority date: 2017-05-11
Filing date: 2018-02-07
Publication date: 2020-12-15
Anticipated expiration: 2038-02-07
Also published as: CN108857854A; TW201900337A; TWI660815B

Abstract

A grinding device comprises a mechanical arm, a clamping seat and a grinding tool, wherein the clamping seat is combined with the mechanical arm and comprises a fixed cylinder and an elastic seat, and the fixed cylinder is provided with an open end; the elastic seat is arranged in the fixed cylinder and comprises a seat body made of elastic material, and the outer wall surface of the seat body is abutted against the inner wall surface of the fixed cylinder; the elastic seat is provided with a combining hole; the grinding tool is arranged in the combining hole of the elastic seat and protrudes out from the opening end. Therefore, the seat body can absorb the vibration generated when the workpiece is ground, and the grinding machining precision is higher.

Description

Grinding device and clamping seat thereof

Technical Field

The invention relates to workpiece grinding and polishing; in particular to a grinding device and a clamping seat thereof.

Background

The grinding device is used for grinding (polishing) the surface of the workpiece to make the surface of the workpiece smoother. The existing grinding device comprises a mechanical arm and a grinding tool, wherein the mechanical arm is controlled to rotate at a plurality of different angles, a fixing ring is arranged on the mechanical arm, the fixing ring is formed by locking and connecting two semi-ring bodies through bolts, and the grinding tool is arranged on the fixing ring and is clamped and fixed by the two semi-ring bodies.

In the process of grinding and processing of the existing grinding device, because the grinder of the grinding tool is in a high-speed rotating state, when the grinder of the grinding tool is in contact with a workpiece, vibration may be generated, and when the vibration is generated, the grinding position is deviated, so that the grinding precision is not good. Furthermore, the vibration may be transmitted to the robot arm, which may loosen components (e.g., threaded components) of the robot arm, resulting in damage to the robot arm.

Disclosure of Invention

In view of the above, the present invention provides a polishing apparatus and a chuck thereof, which can improve the processing precision.

In order to achieve the above object, the present invention provides a clamping seat of a polishing apparatus for clamping a polishing tool, comprising a fixed cylinder and an elastic seat, wherein the fixed cylinder has at least one open end; the elastic seat is arranged in the fixed cylinder and comprises a seat body which is made of elastic materials, and the outer wall surface of the seat body is abutted against the inner wall surface of the fixed cylinder; the elastic seat is provided with a combining hole; the combination hole of the elastic seat is provided with a grinding tool, and the grinding tool protrudes from the open end.

The invention provides a grinding device, which comprises a mechanical arm, a clamping seat and at least one grinding tool, wherein the clamping seat is combined with the mechanical arm and comprises at least one fixed cylinder and at least one elastic seat, and the at least one fixed cylinder is provided with at least one open end; the at least one elastic seat is arranged in the fixed cylinder and comprises a seat body which is made of elastic materials, and the outer wall surface of the seat body is abutted against the inner wall surface of the fixed cylinder; the elastic seat is provided with a combining hole; the at least one grinding tool is arranged in the combining hole of the elastic seat and protrudes out from the open end.

The invention has the advantages that the base body of the elastic base can absorb the vibration generated when the workpiece is ground, so that the grinding processing precision is higher.

Drawings

Fig. 1 is a perspective view of a polishing apparatus according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the holder according to the above preferred embodiment of the present invention.

Fig. 3 is a partially exploded view of fig. 2.

[ invention ]

100 grinding device

10 robot arm 12 action end

20 clamping seat

22 fixing seat 222 combined with groove 24 fixing barrel

24a open end 242 first stationary barrel 244 second stationary barrel

26 combining block 28 elastic seat 30

302 through hole 32 casing 32a coupling hole

32b cutting slot 322 first section 324 second section

326 third segment

40 grinding tool

42 body 422 trachea 424 main shaft

44 grinder

50 fastening member

Detailed Description

In order to more clearly illustrate the present invention, a preferred embodiment will now be described in detail with reference to the accompanying drawings. Referring to fig. 1, a polishing apparatus 100 according to a preferred embodiment of the present invention includes a robot 10, a holder 20, and at least one polishing tool 40, wherein:

the robot 10 is controlled to move in a plurality of axes, and the robot 10 includes an active end 12. The holder 20 is coupled to the working end 12 of the robot arm 10. Referring to fig. 2 and fig. 3, the clamping base 20 includes a fixing base 22, at least one fixing cylinder 24 and at least one elastic base 28, wherein:

the fixing base 22 is used for being fixed on the action end 12, and the fixing base 22 has a combining groove 222. The number of the at least one fixed cylinder 24 is two, and the at least one fixed cylinder 24 includes a first fixed cylinder 242 and a second fixed cylinder 244, a combination block 26 is disposed on an outer wall surface of the first fixed cylinder 242, and the combination block 26 is combined with the combination groove 222. The second fixed cylinder 244 is juxtaposed to the first fixed cylinder 242 and is located on the opposite side of the combining block 26. The axial directions of the two fixed cylinders 24 are parallel; each of the fixed cylinders 24 has at least one open end 24a, and in this embodiment two opposite open ends 24 a.

The number of the at least one elastic seat 28 is two, and each elastic seat 28 is disposed in each fixed cylinder 24. The following description is made by taking an elastic seat 28 and a first fixed cylinder 242 as an example.

The elastic seat 28 includes a seat body 30 and a sleeve 32, wherein the seat body 30 is made of an elastic material, which is rubber in this embodiment, an outer wall surface of the seat body 30 abuts against an inner wall surface of the first fixing cylinder 242, and a wall thickness of the seat body 30 is greater than a wall thickness of the first fixing cylinder 242. The seat body 30 has a through hole 302, and the axial direction of the through hole 302 is parallel to the axial direction of the first fixed cylinder 242; the sleeve 32 is combined with the seat body 30, and a portion of the sleeve 32 is fixed in the through hole 302, and another portion protrudes out of the through hole 302. The sleeve 32 has a coupling hole 32a extending in an axial direction thereof and parallel to an axial direction of the first fixed cylinder 242.

In this embodiment, the casing 32 includes a first section 322, a second section 324 and a third section 326 connected together, the first section 322 is fixed in the through hole 302; the second section 324 and the third section 326 are respectively connected to two ends of the first section 322, wherein the second section 324 protrudes out of one end of the through hole 302 and one open end 24a of the first fixed cylinder 242, and the third section 326 protrudes out of the other end of the through hole 302 and the other open end 24a of the first fixed cylinder 242.

In this embodiment, the two sleeves 32 are inserted into the first fixed cylinder 242 and the second fixed cylinder 244 in opposite directions, i.e., the second section 324 of the sleeve 32 in the first fixed cylinder 242 faces upward, and the second section 324 of the sleeve 32 in the second fixed cylinder 244 faces downward. The wall of the casing 32 is formed with a plurality of slots 32b, each slot communicating with the coupling hole 32a and extending along the axial direction of the casing 32, and extending from the second section 324 to the first section 322 and the third section 326, so that after the casing 32 is inserted into the through hole 302 of the seat body 30, the casing 32 can be slightly deformed, thereby facilitating the insertion into the through hole 302 and enabling the outer wall surface of the first section 322 to be tightly adhered to the wall of the through hole 302 for fixation.

The number of the at least one grinding tool 40 is two, each grinding tool includes a body 42 and a grinder 44, the body 42 is a pneumatic type body, one end of the body is connected to the air pipe 422, the other end of the body has a spindle 424 driven by the air injected from the air pipe 422, and the grinder 44 is disposed on the spindle of the body 42. Each body 42 is disposed in the coupling hole 32a of each sleeve 32, and the two bodies 42 respectively protrude from the opposite open ends 24a of the two fixed cylinders 24, and the main axes of the two bodies 42 respectively face in opposite directions, that is, the main axis 424 of the body 42 disposed in the first fixed cylinder 242 faces upward, and the main axis 424 of the body 42 disposed in the second fixed cylinder 244 faces downward.

In order to fix the body 42 to the sleeve 32 more stably, a tightening member 50 is further disposed on the sleeve 32, the tightening member 50 is tied on the portion of the sleeve 32 protruding out of the through hole 302 of the seat body 30 and surrounds the slot 32b, the tightening member 50 can be sleeved on the second section 324 or the third section 326 of the sleeve 32, the tightening member 50 is a tie ring in this embodiment and is sleeved on the second section 324, and actually, the tightening member 50 can also be a tie strap. The tightening member 50 tightens and then presses the sleeve 32, so that the inner wall surface of the sleeve 32 is pressed against the body 42 of the polishing tool 40, thereby achieving the purpose of tightening.

Therefore, the robot 10 can be controlled to grind a workpiece with a grinding tool, and during the grinding process, the base 30 of the elastic seat 28 can absorb the vibration generated during the grinding of the workpiece, so that the grinding precision is higher. In addition, since the spindles 424 of the two polishing tools 40 face in opposite directions, when polishing different portions of the workpiece, the working end of the robot 10 can be rotated by a small angle to polish different portions of the workpiece without rotating by a large angle, thereby improving the polishing efficiency. In fact, the sleeve 32 may not be provided, and the through hole 302 of the seat 30 may be directly used as the combining hole 32a, so as to achieve the effect of fixing the polishing tool 40.

The above description is only for the preferred and practical embodiment of the present invention, and all equivalent changes and modifications to the present invention as described in the specification and claims should be included in the scope of the present invention.

Claims

1. A holder for a polishing apparatus for holding a polishing tool, comprising:

a fixed cylinder having at least one open end;

the elastic seat is arranged in the fixed cylinder and comprises a seat body and a sleeve, the seat body is made of elastic materials, the outer wall surface of the seat body is abutted against the inner wall surface of the fixed cylinder, and the seat body is provided with a through hole; one part of the sleeve is fixed in the through hole, the other part of the sleeve protrudes out of the through hole, and the sleeve is provided with a combining hole; the combination hole of the elastic seat is provided with a grinding tool which protrudes from the open end;

at least one tightening piece is sleeved on the part of the sleeve, which protrudes out of the through hole, and tightly presses the sleeve, so that the inner wall surface of the sleeve is pressed against the grinding tool.

2. The apparatus of claim 1, wherein the number of the at least one open end of the fixed cylinder is two; the sleeve comprises a first section, a second section and a third section which are connected, and the first section is fixed in the through hole; the second section and the third section are respectively connected with two ends of the first section, the second section protrudes out of one end of the through hole and one open end of the fixed cylinder, and the third section protrudes out of the other end of the through hole and the other open end of the fixed cylinder; the tightening member is sleeved on one section of the second section and the third section.

3. The apparatus of claim 2, wherein the sleeve has a plurality of slots extending along an axial direction of the sleeve; the tightening member surrounds the slots.

4. A polishing apparatus, comprising:

a robot arm;

a clamping seat, which is combined with the mechanical arm, comprising:

at least one fixed cylinder with at least one open end; and

at least one elastic seat arranged in the fixed cylinder, wherein the elastic seat comprises a seat body and a sleeve, the seat body is made of elastic materials, the outer wall surface of the seat body is propped against the inner wall surface of the fixed cylinder, and the seat body is provided with a through hole; one part of the sleeve is fixed in the through hole, the other part of the sleeve protrudes out of the through hole, and the sleeve is provided with a combining hole;

at least one grinding tool, which is arranged in the combining hole of the elastic seat and protrudes out from the open end;

at least one fastening member is sleeved on the part of the sleeve protruding out of the through hole and tightly presses the sleeve, so that the inner wall surface of the sleeve is pressed against the grinding tool.

5. The polishing apparatus of claim 4, wherein the number of the at least one open end of the stationary cylinder is two; the sleeve comprises a first section, a second section and a third section which are connected, and the first section is fixed in the through hole; the second section and the third section are respectively connected with two ends of the first section, the second section protrudes out of one end of the through hole and one open end of the fixed cylinder, and the third section protrudes out of the other end of the through hole and the other open end of the fixed cylinder; the tightening member is sleeved on one section of the second section and the third section.

6. The polishing apparatus of claim 5, wherein the sleeve has a plurality of slots extending in an axial direction of the sleeve; the tightening member surrounds the slots.

7. The polishing apparatus as claimed in claim 4, wherein the number of the at least one fixed cylinder, the number of the at least one elastic seat and the number of the at least one polishing tool are two; the two fixed cylinders are arranged in parallel; each grinding tool comprises a machine body and a grinder arranged on a main shaft of the machine body, each machine body is arranged in the combination hole of each elastic seat, and the main shafts of the two machine bodies face to opposite directions respectively.