CN215316075U

CN215316075U - Split chuck for angle grinder

Info

Publication number: CN215316075U
Application number: CN202121878607.1U
Authority: CN
Inventors: 应伟民
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-28
Anticipated expiration: 2031-08-11

Abstract

A split chuck for an angle grinder comprises a mounting seat fixed on a main body of the angle grinder, a rotatable output shaft is mounted at the outer end of the mounting seat, a flange for fixing a blade is fixedly mounted at the end part of the output shaft, a shifting fork for driving the flange to rotate is mounted on the flange, the flange and the shifting fork are of split structures, locking surfaces for locking each other are arranged on contact surfaces between the flange and the shifting fork, the flange and the shifting fork are of split structures and are connected to the outer side of the output shaft in a sliding mode, the blade is mounted on the flange through a pin, the flange and the shifting fork are of split design, so that the flange can be detached independently, the operation is convenient, the cost is reduced when the flange is replaced, the shifting fork and the flange are in locking transmission with each other through the locking surfaces, the rotation of the flange and the shifting fork is avoided, the shifting fork drives the flange to rotate circularly through the locking surfaces in the cyclic vibration process, and a tool is driven to realize the oscillation motion, and the arrangement of the locking surface enables the flange to adjust the angle of the blade at will.

Description

Split chuck for angle grinder

Technical Field

The utility model relates to an angle grinder, in particular to a split type chuck for the angle grinder.

Background

Currently, some angle grinders in the tool market can replace some multifunctional tools, and the working elements are arranged at the output shaft end of the angle grinder, so that the multifunctional tools have multiple purposes, and can be suitable for multiple working occasions. These multi-function tools are also called oscillating tools, and the working principle is as follows: the multifunctional tool is arranged on an output shaft of the angle grinder, and an eccentric output shaft arranged in the spherical bearing is driven to do oscillating motion through a shifting fork in the multifunctional tool, so that a working element is driven to do oscillating motion, and the processing of a workpiece to be processed is realized. Different working elements have different special purposes, such as a saw blade for cutting, abrasive paper for sanding, etc., wherein the saw blade is a very common working element on a multifunctional tool, and the structure of the product on the market is that a flange and a shifting fork are designed integrally.

The device drives the shift fork through the eccentric wheel and carries out the cyclic oscillation when using, rethread shift fork drives the flange and fixes the instrument on the flange and carry out the cyclic motion, design flange and shift fork structure as an organic whole usually for the transmission stability and the transmission efficiency of assurance flange and shift fork among the existing equipment, the instrument carries out the joint through the pin that sets up on the flange and fixes, the flange carries out the cyclic motion through pin atress driving tool when rotating, thereby make the pin on the flange very easily damage, and the structural maintenance of flange and shift fork integration is extremely inconvenient with the dismantlement, and need change the shift fork that does not damage together when changing the accessory, it is with high costs to change the accessory.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a split chuck for an angle grinder, which adopts a single split flange structure, is convenient to maintain and disassemble, has low cost, and can randomly adjust the angle of a blade at the lower end of a flange to meet different processing requirements.

The utility model adopts the technical scheme for solving the technical problems that: the split chuck for the angle grinder comprises a mounting seat fixed on a main body of the angle grinder, a rotatable output shaft is mounted at the outer end of the mounting seat, a flange for fixing a blade is fixedly mounted at the end part of the output shaft, a shifting fork for driving the flange to rotate is mounted on the flange, the flange and the shifting fork are of split structures, locking surfaces for locking with each other are arranged on contact surfaces between the flange and the shifting fork, the flange and the shifting fork are of split design, so that the flange can be independently dismounted, the operation is convenient, the cost is reduced when the flange is replaced, the shifting fork and the flange are mutually locked and driven by the locking surfaces to avoid the mutual rotation of the flange and the shifting fork, the shifting fork drives the flange to circularly rotate through the locking surfaces in the process of circular vibration, a tool is driven to realize oscillating motion, the arrangement of the locking surfaces enables the flange to randomly adjust the angle of the blade, and when the angle of the existing product on the market is adjusted, the pin on the flange and the clamping groove on the blade are used for adjustment, the angle adjustment position is fixed in such a mode, the requirements of special working environments are not met, the installation seat is of an integrated hoop structure, and assembly is more convenient.

For further improvement, the locking surfaces are respectively circular tooth surface structures on the flange and the shifting fork.

Further perfection, the locking surface is bolt and jack structure on flange and shift fork respectively.

Further perfect, be equipped with the output shaft mounting groove on the mount pad, install the second bearing of fixed output shaft in the output shaft mounting groove, the output shaft up end is opened threaded hole, it has the last bolt that passes the second bearing to go up threaded hole in-connection, be equipped with the second bearing that is located the output shaft outside, make the rotation of output shaft more smooth and easy, and make the power of receiving on the output shaft can pass through the second bearing and transmit to the mount pad in, avoid the output shaft to take place deformation, make the device's life longer.

Further perfect, flange and output shaft are split type structure, the center of flange is equipped with the hole and overlaps on the output shaft, the lower terminal surface of output shaft is opened there is screw hole down, screw hole internal thread installs down the bolt of fixing the flange on shifting fork locking surface down, the flange rotates to be connected in the output shaft outside, make the device when the cutting angle is adjusted to needs, only need loosen last bolt, make the relative output shaft of flange rotate corresponding angle and can realize the regulation of angle, and need not to lift off the blade of lower extreme, it is convenient quick to adjust.

Further perfect, be equipped with the saw bit between lower bolt and the flange, flange lower extreme plane is equipped with the pin that a plurality of evenly set up, and it has the cotter hole that a plurality of and pin correspond the setting to open on the saw bit.

Further perfect, be equipped with the gasket between lower bolt and the saw bit, avoid lower bolt to produce in the device use because the vibration and become flexible.

Further perfect, it has the pinhole that is used for driving output shaft pivoted to open on the shift fork, and the output shaft outside is equipped with the transmission portion that sets up with the pinhole grafting for the shift fork makes the dismantlement and the installation of shift fork more convenient when can not take place the pivoted relatively output shaft.

Further perfect, the outer end of shift fork is opened there is the vibration hole, is equipped with the eccentric shaft of threaded connection in the angle mill main part main shaft outside in the vibration hole, and the eccentric shaft has avoided size error through the direct grinding apparatus shaping of accurate powder metallurgy technology, guarantees the eccentric volume of eccentric shaft to guarantee the cutting efficiency of the device.

Further perfect, be equipped with the first bearing of fixed connection in the eccentric shaft outside between eccentric shaft and the vibration hole, make the sliding friction of eccentric shaft and shift fork when the contact convert into rolling friction through first bearing to the protectiveness to the shift fork is better, makes the device's life longer.

The utility model has the beneficial effects that: the flange is not integrated with the output shaft or the shifting fork, the flange is convenient to maintain and disassemble due to the adoption of the independent split flange structure, the split flange is only required to be independently replaced when needed, the maintenance cost is lower, the shifting fork and the flange are driven by the locking surface, the transmission stability of the shifting fork and the flange is good, the shifting fork and the flange cannot rotate mutually, and the arranged locking surface can also be used for adjusting the cutting angle of a blade fixed on the flange.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of an output shaft;

FIG. 5 is a schematic view of the structure of the flange and the fork when the locking surface is a pin and socket structure.

Description of reference numerals: 1. an angle grinder body; 2. a mounting seat; 3. an eccentric shaft; 4. a second bearing; 5. an output shaft; 6. a shifting fork; 7. a flange; 8. a pin; 9. a saw blade; 10. a pin hole; 11. a locking surface; 12. screwing a bolt; 13. a lower bolt; 14. a gasket; 17. a first bearing; 18. a transmission section; 20. an output shaft mounting groove; 21. an upper threaded hole; 22. an inner bore; 23. a lower threaded hole; 24. a pin hole; 25. and vibrating the hole.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

referring to FIG. 3: the split chuck for the angle grinder in the embodiment comprises a mounting seat 2 fixed on a main body 1 of the angle grinder, wherein a rotatable output shaft 5 is mounted at the outer end of the mounting seat 2, a flange 7 for fixing a blade is fixedly mounted at the end part of the output shaft 5, a shifting fork 6 for driving the flange 7 to rotate is mounted on the flange 7, the flange 7 and the shifting fork 6 are of split structures, and locking surfaces 11 which are locked with each other are arranged on contact surfaces between the flange 7 and the shifting fork 6; flange and shift fork are split type design, flange 7 is installed in the output shaft 5 outside, flange 7 is fixed through the locking surface locking with shift fork 6, make the flange dismantle alone, high durability and convenient operation, and cost reduction when the flange is changed, the shift fork drives the flange through the locking surface and carries out the circulation rotation at the cyclic oscillation in-process, thereby it realizes oscillating motion to drive the instrument, and the setting of locking surface makes the flange lock with the shift fork again after can adjusting blade angle wantonly, thereby corresponding angle that changes the blade, and during current product angle regulation on the market, utilize the pin on the flange to adjust with the draw-in groove on the blade, the position of such mode angle regulation is fixed, the needs of unsuitable some special operational environment.

The locking surface in the application has the effects that when the flange 7 and the shifting fork 6 are mutually extruded, the flange 7 and the shifting fork 6 which are separated mutually interact, so that the flange 7 and the shifting fork 6 are mutually fixed, and the flange is driven to circularly rotate around the output shaft 5 through the shifting fork 6;

as shown in fig. 2, the locking surface in this application may be a circular tooth surface structure respectively arranged on the flange 7 and the shift fork 6;

as shown in fig. 5, the locking surface in the present application may also be a circular tooth surface structure respectively arranged on the flange 7 and the shift fork 6;

as shown in fig. 2, be equipped with output shaft mounting groove 20 on the mount pad 2, install the second bearing 4 of fixed output shaft 5 in the output shaft mounting groove 20, output shaft 5 up end is opened there is last screw hole 21, it has last bolt 12 that passes second bearing 4 to go up the internal connection of screw hole 21, be equipped with the second bearing that is located the output shaft outside, make the rotation of output shaft more smooth and easy, and make the power of receiving on the output shaft can transmit to the mount pad in through the second bearing, avoid the output shaft to take place deformation, make the device's life longer.

As shown in fig. 2, the flange 7 and the output shaft 5 are of a split structure, the center of the flange 7 is provided with an inner hole 22 and is sleeved on the output shaft 5, the lower end face of the output shaft 5 is provided with a lower threaded hole 23, a lower bolt 13 for fixing the flange 7 on the locking face 11 of the shifting fork 6 is installed in the inner thread of the lower threaded hole 23, as shown in fig. 2 and 4, the flange 7 and the output shaft 5 can also be of a split design, the flange is rotatably connected to the outer side of the output shaft, the flange can be detached more conveniently and rapidly, the cost for replacing the flange is low, the device can adjust the cutting angle when the cutting angle needs to be adjusted, only the upper bolt needs to be loosened, the flange can rotate the corresponding angle relative to the output shaft to realize the adjustment of the angle, the lower blade does not need to be detached, and the adjustment of the angle is more convenient and rapid.

As shown in fig. 2 and 3, a saw blade 9 is arranged between the lower bolt 13 and the flange 7, a plurality of pins 8 are uniformly arranged on the lower end plane of the flange 7, a plurality of pin holes 10 corresponding to the pins 8 are formed in the saw blade 9, the lower end of the flange can be connected with the saw blade through the pins, and processing tools corresponding to other procedures can be installed through the pins or other fixed elements; as shown in fig. 2 and 3, a spacer 14 is provided between the lower bolt 13 and the saw blade 9 to prevent the lower bolt from loosening due to vibration during use of the device.

The shifting fork 6 is provided with a pin hole 24 for driving the output shaft 5 to rotate, the outer side of the output shaft 5 is provided with a transmission part 18 which is inserted into the pin hole 24 and limits the rotation of the output shaft 5, the shifting fork 6 can drive the flange to rotate by driving the flange to rotate through the output shaft 5 and extruding the flange to be fixed on a lower bolt at the lower end of the output shaft 5 through the locking surface 11, the transmission stability of the shifting fork is better, and the transmission efficiency is higher.

As shown in fig. 2, the outer end of the shift fork 6 is provided with a vibration hole 25, an eccentric shaft 3 which is connected to the outer side of the main shaft of the angle grinder body 1 by screw threads is arranged in the vibration hole 25, and a first bearing 17 which is fixedly connected to the outer side of the eccentric shaft 3 is arranged between the eccentric shaft 3 and the vibration hole 25.

When the angle grinder is used, the main shaft of the angle grinder body 1 rotates to drive the eccentric shaft 3 to rotate, the eccentric shaft 3 rotates to be in contact with the vibration hole 25 of the shifting fork 6 through the first bearing 17 on the outer side, so that the shifting fork 6 drives the flange 7 with the lower end locked by the locking surface 11 to circularly rotate around the output shaft 5 at the inner side, so that the saw blade 9 at the lower end of the flange 7 swings back and forth along with the flange 7 under the action of the pin 8 to realize the cutting operation, when the angle of the saw blade 9 needs to be adjusted, the upper bolt 12 with a certain distance is only needed to be loosened, the shifting fork 6 is lifted upwards to enable the shifting fork 6 and the flange 7 to be separated from each other, then the flange 7 is rotated until the saw blade 9 reaches the required angle, the shifting fork 6 can be put down to enable the shifting fork 6 and the flange 7 to be locked again through the locking surface 11, and finally the upper bolt 12 is screwed, when the flange 7 needs to be replaced, the blade 9 and the flange 7 are sequentially removed and replaced by turning the lower bolt 13 at the lower end.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a split type chuck for on angle mill, is including fixing mount pad (2) on angle mill main part (1), and rotatable output shaft (5) are installed to the outer end of mount pad (2), and the tip fixed mounting of output shaft (5) has flange (7) that are used for fixed blade, there is installation drive flange (7) pivoted shift fork (6), characterized by on flange (7): the flange (7) and the shifting fork (6) are of split structures, and a locking surface (11) which is locked with each other is arranged on a contact surface between the flange (7) and the shifting fork (6).

2. The split-type chuck for an angle grinder as set forth in claim 1, wherein: the locking surface (11) is respectively a circular tooth surface structure on the flange (7) and the shifting fork (6).

3. The split-type chuck for an angle grinder as set forth in claim 1, wherein: the locking surface (11) is of a bolt and a jack structure on the flange (7) and the shifting fork (6) respectively.

4. The split-type chuck for an angle grinder as set forth in claim 1, wherein: an output shaft mounting groove (20) is formed in the mounting seat (2), a second bearing (4) for fixing the output shaft (5) is mounted in the output shaft mounting groove (20), an upper threaded hole (21) is formed in the upper end face of the output shaft (5), and an upper bolt (12) penetrating through the second bearing (4) is connected into the upper threaded hole (21).

5. The split type chuck for an angle grinder as set forth in claim 1 or 4, wherein: the flange (7) and the output shaft (5) are of a split structure, an inner hole (22) is formed in the center of the flange (7) and is sleeved on the output shaft (5), a lower threaded hole (23) is formed in the lower end face of the output shaft (5), and a lower bolt (13) for fixing the flange (7) on a locking face (11) of the shifting fork (6) is installed in the inner thread of the lower threaded hole (23).

6. The split-type chuck for an angle grinder as set forth in claim 5, wherein: be equipped with saw bit (9) down between bolt (13) and flange (7), flange (7) lower extreme plane is equipped with pin (8) that a plurality of evenly set up, last division of saw bit (9) have a plurality of to correspond pin hole (10) that set up with pin (8).

7. The split-type chuck for an angle grinder as set forth in claim 6, wherein: and a gasket (14) is arranged between the lower bolt (13) and the saw blade (9).

8. The split-type chuck for an angle grinder as set forth in claim 1, wherein: the shifting fork (6) is provided with a pin hole (24) for driving the output shaft (5) to rotate, and the outer side of the output shaft (5) is provided with a transmission part (18) inserted into the pin hole (24).

9. The split-type chuck for an angle grinder as set forth in claim 8, wherein: the outer end of the shifting fork (6) is provided with a vibration hole (25), and an eccentric shaft (3) which is in threaded connection with the outer side of the main shaft of the angle grinder body (1) is arranged in the vibration hole (25).

10. The split-type chuck for an angle grinder as set forth in claim 9, wherein: and a first bearing (17) fixedly connected to the outer side of the eccentric shaft (3) is arranged between the eccentric shaft (3) and the vibration hole (25).