CN209970385U

CN209970385U - Eccentric quick change structure of abrasive disc

Info

Publication number: CN209970385U
Application number: CN201920603831.6U
Authority: CN
Inventors: 张英华; 张星忠
Original assignee: Foshan Son De Wei Machinery Co Ltd
Current assignee: Foshan Son De Wei Machinery Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-21
Anticipated expiration: 2029-04-29

Abstract

The utility model particularly relates to an eccentric quick change structure of abrasive material dish, including abrasive material dish main rotation axle, mount pad and bearing, be connected its characterized in that through the bearing between abrasive material dish main rotation axle and the mount pad: the lower extreme of abrasive material dish main rotation axis is equipped with pivot installation concave part, abrasive material dish main rotation axis still is equipped with the abrasive material dish that is connected with abrasive material dish main rotation axis, the top of abrasive material dish is equipped with eccentric quick detach axle, eccentric quick detach axle is arranged in the installation concave part and is connected through the cylindric lock between eccentric quick detach axle and the installation concave part, abrasive material dish main rotation axis is equipped with and is used for covering the installation concave part and along the movable spacer sleeve of abrasive material dish main rotation axis aversion from top to bottom, abrasive material dish main rotation axis still overlaps there is the elasticity spring, the both ends of elasticity spring push up respectively on movable spacer sleeve and mount pad, the abrasive material dish is connected with the abrasive material cloth, the utility model discloses a main effect is through abrasive material dish main rotation axis and abrasive material dish through eccentric quick detach axle, installation concave part.

Description

Eccentric quick change structure of abrasive disc

Technical Field

The utility model relates to a plank sand light technique specifically is an eccentric quick change structure of abrasive material dish.

Background

When the existing autorotation disc sand component is arranged on the market, the grinding material is replaced by a clamping shaft matched with a quick-change screw tap chuck for processing, or the grinding material disc is replaced by a structure directly matched with a screw rod and a nut, the former has high manufacturing cost and a complex structure, and the latter has simple structure but is easy to damage, troublesome to replace and low in efficiency.

Disclosure of Invention

An object of the utility model is to overcome the not enough of above-mentioned prior art, provide an eccentric quick change structure of abrasive material dish that can reach the purpose of quick replacement abrasive material dish and strengthen sand light effect.

The utility model discloses an eccentric quick change structure of abrasive material dish, including abrasive material dish main rotation axis, mount pad and bearing, be connected through the bearing between abrasive material dish main rotation axis and the mount pad, wherein the lower extreme of abrasive material dish main rotation axis is equipped with pivot installation concave part, abrasive material dish main rotation axis still is equipped with the abrasive material dish that is connected with abrasive material dish main rotation axis, the top of abrasive material dish is equipped with eccentric quick detach axle, eccentric quick detach axle is arranged in the installation concave part and is connected through the cylindric lock between eccentric quick detach axle and the installation concave part, abrasive material dish main rotation axis is equipped with and is used for covering the installation concave part and along the movable spacer of abrasive material dish main rotation axis aversion from top to bottom, abrasive material dish main rotation axis still overlaps there is the elasticity spring, the both ends of elasticity spring push up respectively on movable spacer.

And particularly, a rotating shaft inserting port is formed in the main rotating shaft of the abrasive disc and communicated with the mounting concave part, one end of the cylindrical pin penetrates through the rotating shaft inserting port, and one end of the cylindrical pin is connected to the eccentric quick-release shaft.

Specifically further, the eccentric quick-release shaft is provided with a rectangular notch, and the rectangular notch is matched with the cylindrical pin.

Particularly, the eccentric quick-release shaft is connected with the abrasive disc through screws.

Particularly, a driving piece is connected to the top end of the main rotating shaft of the abrasive disc.

It is specific further, the central point of driving piece is equipped with the drive installing port, and the top of abrasive material dish main rotation axle is arranged in the drive installing port and the locating key is installed to the department of being connected between abrasive material dish main rotation axle and the driving piece.

Specifically, further, the mount pad is equipped with the mount pad spiro union hole, and the mount pad spiro union hole symmetric distribution is in the upper surface of mount pad.

Particularly, a cavity is arranged in the movable blocking sleeve, the size of the containing cavity is matched with the top end of the eccentric quick-release shaft, a flange edge is arranged at the lower end of the main rotating shaft of the abrasive disc, and the flange edge is arranged in the containing cavity and arranged on the top surface in the containing cavity.

Specifically, the length of the cylindrical pin is equal to or smaller than the diameter of the accommodating cavity, and one end of the elastic spring is arranged in the mounting seat.

Concretely further, the excircle eccentricity of eccentric quick detach axle and abrasive disc is 5mm to 7.5 mm.

The utility model has the advantages that: the main rotating shaft of the abrasive disc is connected with the abrasive disc through the eccentric quick-release shaft, the mounting concave part and the cylindrical pin, so that the efficiency of replacing the abrasive is greatly improved; in addition, through the excircle eccentric design of eccentric quick detach axle and abrasive disc, play the effect of polishing of having strengthened abrasive disc to the work piece.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure diagram of the present invention.

Fig. 3 is a schematic view of the connection structure of the abrasive disc and the eccentric quick release shaft.

Fig. 4 is a structural view in a disassembled state of fig. 1.

The following figures are diagrammatic illustrations:

a main abrasive disc rotation axis 1; a shaft mounting recess 101; a spindle insertion opening 102; a tension spring 2; a movable blocking sleeve 3; an eccentric quick-release shaft 4; a rectangular notch 401; a screw 402; an abrasive disc 5; an abrasive cloth 501; a cylindrical pin 6; a mounting seat 7; a bearing 701; a drive member 8; the positioning key 801.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the eccentric quick-change structure for abrasive discs described in the present invention comprises a main rotating shaft 1 of an abrasive disc, a mounting base 7 and a bearing 701, wherein the main rotating shaft 1 of the abrasive disc is connected with the mounting base 7 through the bearing 701, a rotating shaft mounting recess 101 is provided at a lower end of the main rotating shaft 1 of the abrasive disc, the main rotating shaft 1 of the abrasive disc is further provided with an abrasive disc 5 connected with the main rotating shaft 1 of the abrasive disc, an eccentric quick-release shaft 4 is provided at a top end of the abrasive disc 5, the eccentric quick-release shaft 4 is disposed in the mounting recess 101 and connected with the mounting recess 101 through a cylindrical pin 6, the main rotating shaft 1 of the abrasive disc is provided with a movable retaining sleeve 3 for covering the mounting recess 101 and moving up and down along the main rotating shaft 1 of the abrasive disc, the main rotating shaft 1 of the abrasive disc is further sleeved with a tension spring 2, two ends of the tension spring, an abrasive cloth 501 is attached to the abrasive disc 5.

The abrasive disc main rotating shaft 1 and the abrasive disc 5 of the structure are connected through the eccentric quick-release shaft 4, the installation concave part 101 and the cylindrical pin 6, and the efficiency of replacing abrasive materials is greatly improved.

This quick release effect was developed for quick change of abrasive discs as follows:

1. when the grinding materials are replaced, an operator only needs to hold the movable blocking sleeve 3 with one hand and pull the grinding material disc 5 with the other hand to take out along the main rotating shaft 1 of the grinding material disc; and the movable blocking sleeve 3 is loosened, and the movable blocking sleeve 3 returns to the original position under the action of the elastic spring 2.

2. After finishing changing the abrasive cloth 501 on the abrasive material dish 5, hold up movable spacer 3 on the other hand, hold abrasive material dish 5 on the other hand, fix the eccentric quick detach axle 4 on abrasive material dish 5 and aim at abrasive material dish main rotation axis 1 and push into, when eccentric quick detach axle 4 is arranged in to cylindric lock 6, loosen movable spacer 3, normal position is got back to movable spacer 3 under the effect of elasticity spring 2, entangle abrasive material dish main rotation axis 1 and eccentric quick detach axle 4 simultaneously, abrasive material dish 5 is changed and is finished.

Be equipped with the pivot on abrasive material dish main rotation axle 1 and plant a mouthful 102, the pivot is planted a mouthful 102 and is linked together with installation

concave part

101, 6 one end of cylindric lock is passed the pivot and is planted a

mouthful

102, and 6 one end of cylindric lock is connected on eccentric quick detach axle 4. Wherein the cylindrical pin 6 is used for being fixed at the rotating shaft insertion opening 102 and is used for installing the eccentric quick release shaft 4 on the main rotating shaft 1 of the abrasive disc. In addition, the eccentric quick release shaft 4 is provided with a rectangular notch 401, and the rectangular notch 401 is matched with the cylindrical pin 6. The cylindrical pin 6 is used for limiting the position of the eccentric quick-release shaft 4 and is arranged in the rectangular notch 401 to push the eccentric quick-release shaft 4 to move transversely, so that the cylindrical pin 6 is separated from the rectangular notch 401, and the separation effect can be realized.

Be connected through screw 402 between eccentric quick detach axle 4 and the abrasive material dish 5. The eccentric quick release shaft 4 and the abrasive disc 5 can be separated, and the eccentric quick release shaft 4 and the abrasive disc 5 can be connected by using the screw 402, or the eccentric quick release shaft 4 and the abrasive disc 5 are integrated. In addition, a driving member 8 is connected to the top end of the main rotating shaft 1 of the abrasive disc.

The center of the driving member 8 is provided with a driving mounting opening, the top end of the main rotating shaft 1 of the abrasive disc is arranged in the driving mounting opening, and a positioning key 801 is arranged at the connecting position between the main rotating shaft 1 of the abrasive disc and the driving member 8. The positioning key 801 prevents the main abrasive disc rotating shaft from rotating within the drive receiving opening of the drive member 8, thereby enabling efficient power transfer.

Mount pad 7 is equipped with the mount pad spiro union hole, mount pad spiro union hole symmetric distribution in the upper surface of mount pad 7. The mounting base 7 is mounted on the grinder and another set of screws are used to implement the connection of the mounting base 7 with the grinder. In addition, be equipped with the cavity in the activity spacer 3, hold the size of chamber and 4 top looks adaptations of eccentric quick detach axle, abrasive disc main rotating shaft 1 lower extreme department is equipped with flange limit 103, and flange limit 103 is arranged in and is held the intracavity and place the top surface department of holding the intracavity in, makes activity spacer 3 can not break away from abrasive disc main rotating shaft 1, can remove along abrasive disc main rotating shaft 1. Moreover, the length of cylindric lock 6 is equal to or less than the diameter that holds the chamber, avoids cylindric lock 6 card to die in holding the chamber. One end of the elastic spring 2 is arranged in the mounting seat 7 and used for limiting the position of the elastic spring 2.

In order to rapidly improve the sanding effect and the sanding area of the abrasive, an eccentric structure of the abrasive disc is developed, and the structure is described as follows:

1. the eccentricity of the outer circles of the eccentric quick-release shaft 4 and the abrasive disc 5 is 5mm to 7.5mm, and the sanding area is enlarged under the condition that the size of the abrasive disc 5 is not increased. Meanwhile, the sanding effect is enhanced.

2. Because the abrasive disc 5 eccentrically rotates, the abrasive sanding areas are mutually crossed and covered when rotating, so that the sand marks left by the traditional self-rotating sanding process are better eliminated, and the sanding effect is improved.

This structure can be applied to a slider for on grinder, including curb plate and slide, the lateral wall of curb plate is equipped with the gyro wheel, go up spacing piece and spacing piece down, the both sides of slide are equipped with the bearing limit, the gyro wheel is arranged in to the bearing limit, go up spacing piece and spacing piece down and be located the top and the below of gyro wheel respectively, and go up spacing piece 121 and spacing piece down be fixed in the lateral wall of curb plate, the sanding head is installed to the bottom surface of slide, this structure is through the pulling slide, make the slide shift to one side and expose outside the curb plate, alright change or installation abrasive material dish eccentric quick change structure, the drive can be implemented through auxiliary motor to the eccentric quick change structure of abrasive material dish, and the gyro wheel helps the slide shift and go up spacing piece and spacing piece down be used for restricting the slide shift from top to bottom, abrasive material dish quick change structure is when polishing. A plurality of eccentric quick change structures of abrasive material dish are preferred to this structure, accessible belt or chain drive between eccentric quick change structure of abrasive material dish and the auxiliary motor. But the application is not limited to the sliding device of the sander, and other sanders can also be applied.

In addition, this structure plays the effect of polishing of having strengthened the abrasive material dish to the work piece through eccentric quick detach axle 4 and the eccentric design of the excircle of abrasive material dish 5.

The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an eccentric quick change structure of abrasive disc, includes abrasive disc main rotation axle (1), mount pad (7) and bearing (701), is connected its characterized in that through bearing (701) between abrasive disc main rotation axle (1) and mount pad (7): the lower extreme of abrasive disc main rotating shaft (1) is equipped with pivot installation concave part (101), abrasive disc main rotating shaft (1) still is equipped with abrasive disc (5) that are connected with abrasive disc main rotating shaft (1), the top of abrasive disc (5) is equipped with eccentric quick detach axle (4), eccentric quick detach axle (4) are arranged in installation concave part (101) and are connected through cylindric lock (6) between eccentric quick detach axle (4) and installation concave part (101), abrasive disc main rotating shaft (1) is equipped with movable spacer sleeve (3) that are used for covering installation concave part (101) and shift from top to bottom along abrasive disc main rotating shaft (1), abrasive disc main rotating shaft (1) still overlaps there are elasticity spring (2), the both ends of elasticity spring (2) push up respectively on movable spacer sleeve (3) and mount pad (7), abrasive disc (5) are connected with abrasive cloth (501).

2. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: a rotating shaft inserting opening (102) is formed in the main rotating shaft (1) of the abrasive disc, the rotating shaft inserting opening (102) is communicated with the mounting concave portion (101), one end of the cylindrical pin (6) penetrates through the rotating shaft inserting opening (102), and one end of the cylindrical pin (6) is connected to the eccentric quick-release shaft (4).

3. The eccentric quick change structure of abrasive discs according to claim 1 or 2, characterized in that: the eccentric quick-release shaft (4) is provided with a rectangular notch (401), and the rectangular notch (401) is matched with the cylindrical pin (6).

4. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: the eccentric quick-release shaft (4) is connected with the abrasive disc (5) through a screw (402).

5. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: the top end of the main rotating shaft (1) of the abrasive disc is connected with a driving piece (8).

6. The eccentric quick change structure of abrasive disc according to claim 5, characterized in that: the center part of driving piece (8) is equipped with the drive installing port, and the top of abrasive disc main rotating shaft (1) is arranged in the drive installing port and is connected the department between abrasive disc main rotating shaft (1) and driving piece (8) and install navigation key (801).

7. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: the mounting seat (7) is provided with mounting seat screwing holes, and the mounting seat screwing holes are symmetrically distributed on the upper surface of the mounting seat (7).

8. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: the grinding material disc is characterized in that a cavity is formed in the movable blocking sleeve (3), the size of the containing cavity is matched with the top end of the eccentric quick-release shaft (4), a flange edge (103) is arranged at the lower end of the main rotating shaft (1) of the grinding material disc, and the flange edge (103) is arranged in the containing cavity and arranged on the top surface of the containing cavity.

9. The eccentric quick change structure of abrasive disc according to claim 8, characterized in that: the length of the cylindrical pin (6) is equal to or smaller than the diameter of the accommodating cavity, and one end of the elastic spring (2) is arranged in the mounting seat (7).

10. The eccentric quick change structure of abrasive disc according to claim 1, characterized in that: the excircle eccentricity of the eccentric quick-release shaft (4) and the abrasive disc (5) is 5mm to 7.5 mm.