CN113043167A

CN113043167A - Quick tool changing grinding head motor

Info

Publication number: CN113043167A
Application number: CN202110317642.4A
Authority: CN
Inventors: 陈仙根
Original assignee: Shanghai Cdqc Electric Co ltd
Current assignee: Shanghai Cdqc Electric Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-06-29

Abstract

The invention relates to a quick tool changing grinding head motor which comprises a main shaft, a tool handle, a driving motor, a pull rod driving mechanism, a tool handle connecting piece and at least one pair of beads.

Description

Quick tool changing grinding head motor

Technical Field

The invention relates to the technical field of grinding head motors, in particular to a quick tool changing grinding head motor.

Background

The grinding head motor is mainly applied to the glass deep processing industry and is used for grinding glass corners. Because the requirements of use working conditions and use performance are special, the grinding wheel can be worn after being used for a period of time, the tool needs to be replaced at the moment, namely, the tool shank with the grinding wheel is replaced, at present, the connection structure of the tool shank and the driving shaft is complex, the tool shank is replaced on site, time waste can be caused, and the efficiency is low.

Disclosure of Invention

Based on this, to above-mentioned technical problem, provide a convenient, swift quick tool changing bistrique motor of tool changing.

In order to solve the technical problems, the invention adopts the following technical scheme:

a quick tool changing grinding head motor comprises a main shaft, a tool handle and a driving motor, wherein the tool handle is installed at the front end of the main shaft, the driving motor is connected with the rear end of the main shaft, the quick tool changing grinding head motor is characterized by further comprising a pull rod, a pull rod driving mechanism, a tool handle connecting piece and at least one pair of beads, the pull rod driving mechanism is used for driving the pull rod shaft to move forwards, an axial hole is formed in the main shaft, the front end of the main shaft is provided with a first mounting port axially inserted by a base of the tool handle, the first mounting port and the axial hole are concentric and communicated, the pull rod is arranged in the axial hole, the front end of the pull rod is provided with a second mounting port axially inserted by the rear end of the tool handle connecting piece and at least one pair of radial through holes symmetrically arranged, the radial through holes are communicated with the second mounting port, and an axial elastic restoring piece is arranged between the, the front end of handle of a knife connecting piece with the connection can be dismantled to the base of handle of a knife, pull rod actuating mechanism with the rear end transmission of pull rod is connected, the pearl is radial activity to be located in the through-hole, the axial hole is including being used for through the pearl is radial to be pressed from both sides tight the first hole section of handle of a knife connecting piece and be used for making the pearl is radial to be loosened and maintain on radial through-hole in order to release the second hole section of handle of a knife connecting piece, first hole section is located the rear side of second hole section has between the two by preceding direction section that diminishes to the back internal diameter gradually, the second hole section with first installing port meets.

According to the invention, the first hole section and the second hole section are arranged in the main shaft, when the pull rod is arranged in the first hole section, the handle connecting piece can be clamped through the beads, and when the pull rod is arranged in the second hole section, the handle connecting piece can be released, so that quick tool changing is realized, the tool changing is convenient and quick, and the efficiency is improved.

Drawings

The invention is described in detail below with reference to the following figures and detailed description:

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

FIG. 2 is a schematic view of the connecting structure of the pull rod, the handle connecting member and the handle of the present invention.

Detailed Description

As shown in fig. 1 and 2, a quick tool changing grinding head motor includes a housing 1100, a main shaft 1200, a tool shank 1300, a driving motor 1400, a pull rod 1500, a pull rod driving mechanism 1600, a tool shank connector 1700, at least one pair of beads 1800, and an elastic restoring member 1900.

An annular connecting piece 1110 is fixed at the front end of the casing 1100, and a skeleton sealing ring 1111 is arranged on the inner wall of the connecting piece 1110.

The main shaft 1200 penetrates through the casing 1100, two ends of the main shaft are respectively connected with the casing 1100 through bearings 1120, a sealing sleeve 1210 is arranged at the front end of the main shaft 1200, and the sealing sleeve 1210 is matched with a connecting piece 1110 to form labyrinth seal.

The spindle 1200 has an axial bore 1220 therein, and the front end of the spindle 1200 has a first mounting port (not shown) that is axially insertable into the base 1310 of the tool shank 1300, the first mounting port being concentric with and communicating with the axial bore 1220.

The tool shank 1300 is mounted to the front end of the main shaft 1200 through a first mounting opening, on which a grinding wheel (not shown) is disposed.

The driving motor 1400 is connected to the rear end of the main shaft 1200, and the main shaft 1200 drives the tool holder 1300 to rotate to perform edge grinding under the driving of the driving motor 1400.

In this embodiment, the driving motor 1400 is coupled to a coupling shaft 1420 through a coupling 1410, and the coupling shaft 1420 is coupled to the rear end of the main shaft 1200 through a bolt.

The pull rod 1500 is disposed in the axial hole 1220, and the front end of the pull rod 1500 has a second mounting port 1510 axially inserted by the rear end of the tool shank connector 1700 and at least a pair of radial through holes (not shown) arranged in an axial symmetry manner, the radial through holes are communicated with the second mounting port 1510, and an axial elastic restoring member 1900 is disposed between the rear end of the pull rod 1500 and the axial hole 1220.

The pull rod driving mechanism 1600 is used for driving the pull rod 1500 to move axially forward in the axial hole 1220, and is in transmission connection with the rear end of the pull rod 1500.

In the present embodiment, the pull rod driving mechanism 1600 drives the pull rod 1500 through the transmission shaft 1998 and the pressing shaft 1999, and specifically, the transmission shaft 1998 and the pressing shaft 1999 are disposed in the axial hole 1220, the transmission shaft 1998 is connected with the pressing shaft 1999, the pressing shaft 1999 is screwed with the rear end of the pull rod 1500, and the pull rod driving mechanism 1600 is connected with the transmission shaft 1998.

Specifically, the pull rod driving mechanism 1600 includes a mounting seat 1610, a fixing seat 1620, a swing arm 1630 capable of swinging back and forth, and a power source 1640 for driving the swing arm 1630 to swing back and forth, wherein the mounting seat 1610 is radially fixed on the casing 1100, the swing arm 1630 is rotatably fixed on the mounting seat 1610 and is in transmission connection with the transmission shaft 1998, the main shaft 1200 has a window for providing a transmission stroke of the swing arm 1630, and the power source 1640 is a cylinder arranged back and forth and fixed on the mounting seat 1610 through the fixing seat 1620.

The front end of the handle connector 1700 is removably connected to the base 1310 of the handle 1300.

In this embodiment, handle connector 1700 is a BT30 pull stud, the front end of which is threadedly attached to base 1310 of handle 1300.

The beads 1800 are steel balls, and are radially movably disposed in the radial through holes.

In the present embodiment, the axial bore 1220 includes a third bore section 1221, a fourth bore section 1224, a first bore section 1222, and a second bore section 1223 arranged from rear to front, and the drawbar 1500 is comprised of a narrower main body rod and a thicker front end.

The aperture of the third hole section 1221 is slightly larger than the outer diameter of the main body rod of the pull rod 1500, the aperture of the fourth hole section 1224 is matched with the outer diameter of the main body rod, the main body rod extends into the third hole section 1221 from front to back through the fourth hole section 1224, a step 1225 is formed between the third hole section 1221 and the fourth hole section 1224, the axial elastic restoring piece 1900 is a spring, the axial elastic restoring piece is arranged in the third hole section 1221, the front end of the axial elastic restoring piece abuts against the step 1225, and the rear end of the axial elastic restoring piece is connected with the rear end of the pull rod 1500.

The first hole section 1222 is used for radially clamping the shank connector 1700 through the bead 1800, the second hole section 1223 is used for radially loosening and maintaining the bead 1800 on the radial through hole, so as to release the shank connector 1700, the hole diameter of the first hole section 1222 is smaller than that of the second hole section 1223, the first hole section 1222 is located on the rear side of the second hole section 1223, a guide section 1226 with the inner diameter gradually reduced from front to back is arranged between the first hole section 1222 and the second hole section 1223, and the second hole section 1223 is connected with the first mounting opening.

When the tool shank is in the mounted state, the front end of the pull rod 1500 is located in the first hole section 1222, and the bead 1800 thereon is pressed by the first hole section 1222, thereby radially clamping the tool shank connector 1700.

When the knife needs to be replaced, the pull rod 1500 is driven to move forwards in the axial hole 1220 through the pull rod driving mechanism 1600, the front end of the pull rod 1500 enters the second hole section 1223, the pull rod driving mechanism 1600 maintains force application, at the moment, the beads 1800 are radially loosened and maintained on the radial through hole, the knife handle connecting piece 1700 is released, the knife handle 1300 can be taken out and detached from the knife handle connecting piece 1700, a new knife handle is replaced, and meanwhile, the elastic restoring piece 1900 is compressed. In fig. 1, the grinding head motors are arranged in the up-down direction, so that the tool shank 1300 can fall down by its own weight after the tool shank coupling 1700 is released.

After a new tool shank is connected with the tool shank connecting piece 1700, the rear end of the tool shank connecting piece 1700 is axially inserted into the second mounting port 1510 again, meanwhile, the pull rod driving mechanism 1600 stops applying force, the pull rod 1500 moves backwards in the axial hole 1220 under the action of the elastic restoring piece 1900, the beads 1800 gradually move radially through the guide sections 1226 until the tool shank connecting piece 1700 is radially clamped in the first hole section 1222, and tool changing is completed.

However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.

Claims

1. A quick tool changing grinding head motor comprises a main shaft, a tool handle and a driving motor, wherein the tool handle is installed at the front end of the main shaft, the driving motor is connected with the rear end of the main shaft, the quick tool changing grinding head motor is characterized by further comprising a pull rod, a pull rod driving mechanism, a tool handle connecting piece and at least one pair of beads, the pull rod driving mechanism is used for driving the pull rod shaft to move forwards, an axial hole is formed in the main shaft, the front end of the main shaft is provided with a first mounting port axially inserted by a base of the tool handle, the first mounting port and the axial hole are concentric and communicated, the pull rod is arranged in the axial hole, the front end of the pull rod is provided with a second mounting port axially inserted by the rear end of the tool handle connecting piece and at least one pair of radial through holes symmetrically arranged, the radial through holes are communicated with the second mounting port, and an axial elastic restoring piece is arranged between the, the front end of handle of a knife connecting piece with the connection can be dismantled to the base of handle of a knife, pull rod actuating mechanism with the rear end transmission of pull rod is connected, the pearl is radial activity to be located in the through-hole, the axial hole is including being used for through the pearl is radial to be pressed from both sides tight the first hole section of handle of a knife connecting piece and be used for making the pearl is radial to be loosened and maintain on radial through-hole in order to release the second hole section of handle of a knife connecting piece, first hole section is located the rear side of second hole section has between the two by preceding direction section that diminishes to the back internal diameter gradually, the second hole section with first installing port meets.

2. The quick tool changing grinding head motor according to claim 1, further comprising a coupler and a connecting shaft, wherein the driving motor is connected with the connecting shaft through the coupler, and the connecting shaft is connected with the rear end of the main shaft.

3. The quick tool changing grinding head motor according to claim 2, further comprising a transmission shaft and a pressing shaft, wherein the transmission shaft and the pressing shaft are arranged in the axial hole, the transmission shaft is connected with the pressing shaft, the pressing shaft is connected with the rear end of the pull rod, and the pull rod driving mechanism is connected with the transmission shaft.

4. The quick tool changing grinding head motor according to claim 3, wherein the pull rod driving mechanism comprises a swing arm capable of swinging back and forth and a power source for driving the swing arm to swing back and forth, the swing arm is in transmission connection with the transmission shaft, and the main shaft is provided with a window for providing a transmission stroke of the swing arm.

5. The quick tool changing grinding head motor as claimed in claim 4, wherein the power source is a cylinder.

6. The quick tool changing grinding head motor according to claim 5, further comprising a casing, wherein an annular connecting piece is fixed to the front end of the casing, a framework sealing ring is arranged on the inner wall of the connecting piece, the main shaft penetrates through the casing, two ends of the main shaft are connected with the casing through bearings respectively, a sealing sleeve is arranged at the front end of the main shaft, and the sealing sleeve and the connecting piece are matched to form labyrinth sealing.

7. The quick tool changing grinding head motor according to claim 6, wherein the pull rod driving mechanism further comprises a mounting seat and a fixing seat, the mounting seat is radially fixed on the machine shell, the air cylinder is arranged in a front-back manner and is fixed on the mounting seat through the fixing seat, and the swing arm is rotationally fixed on the mounting seat.

8. The quick tool changing grinding head motor according to claim 1 or 7, wherein the tool shank connecting piece is a blind rivet, and the front end of the tool shank connecting piece is in threaded connection with the base of the tool shank.

9. The quick tool changing grinder motor of claim 8, wherein the beads are steel balls.

10. The quick tool changing burr motor of claim 9, wherein the axially resilient return member is a spring.