CN219234902U

CN219234902U - Quick change equipment of polishing

Info

Publication number: CN219234902U
Application number: CN202320781832.6U
Authority: CN
Inventors: 贺成青
Original assignee: Daru Technology Suzhou Co ltd
Current assignee: Daru Technology Suzhou Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-23
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to the field of polishing tools, in particular to quick-change polishing equipment, which comprises a machine head, a grinding head, a quick-change mechanism and a transmission mechanism, wherein the machine head is provided with a grinding head; the machine head comprises a shell which is fixedly arranged, wherein the shell is provided with a rotor and a fixed stator; the grinding head comprises an abrasive disc for grinding a workpiece and a connecting rod vertically fixed on the abrasive disc; one end of the quick-change mechanism is rotationally connected with the machine head, and the other end of the quick-change mechanism is detachably fixed with the grinding head; the quick-change mechanism comprises a body, wherein a locking part for fixing the grinding head is arranged on the body; the locking part applies axial constraint force to the grinding head; the transmission mechanism is used for transmitting the power of the machine head to the quick-change mechanism. The quick-change mechanism is arranged, so that the grinding head can be conveniently and quickly replaced according to different processing requirements; and the grinding head is positioned by adopting the locking part, so that the grinding head can be installed without disassembling equipment.

Description

Quick change equipment of polishing

Technical Field

The utility model relates to the field of polishing tools, in particular to quick-change polishing equipment.

Background

Sanding is a surface modification technique, generally referred to as a process for modifying the physical properties of a material surface by friction with a roughened object (sandpaper containing particles of higher hardness, etc.), the primary purpose being to obtain a specific surface roughness. The different requirements for the surface roughness of the workpiece lead to the need of replacing the grinding head in the grinding process, and the replacing method of the grinding head in the prior art is too complex, so that the production progress is slow.

Disclosure of Invention

The utility model aims at: provides a quick-change polishing device to solve the problem of complex grinding head replacement in the prior art.

The technical scheme of the utility model is as follows: a quick change sharpening device comprising:

the machine head comprises a shell which is fixedly arranged, and a rotor and a stator are arranged in the shell;

the grinding head comprises an abrasive disc for grinding a workpiece and a connecting rod vertically fixed on the abrasive disc;

one end of the quick-change mechanism is rotationally connected with the machine head, and the other end of the quick-change mechanism is detachably fixed with the grinding head; the quick-change mechanism comprises a body, wherein a locking part for fixing the grinding head is arranged on the body; the locking part applies axial constraint force to the grinding head;

and the transmission mechanism is used for transmitting the power of the machine head to the quick-change mechanism.

Preferably, the body is coaxially provided with a connecting hole, the connecting rod is matched with the connecting hole, and the connecting rod is provided with a ring groove; the ring groove is provided with a certain gradient;

the locking part is arranged at a corresponding position of the ring groove of the connecting rod in a locking state and comprises a locking head and an elastic piece connected with the locking head; the locking head slides into and out of the annular groove under the action of the elasticity of the elastic piece and the external force exceeding a preset value;

the transmission mechanism comprises a first gear and a second gear which are meshed with each other for transmission; the first gear is fixed on the driving end of the rotor, and the second gear is fixed on the body.

Preferably, the body is sleeved with a bearing, and the bearing is embedded in the shell; the body is radially provided with a through hole, the locking part is arranged in the through hole, and one end of the elastic piece, which is far away from the locking head, is fixed on the inner wall of the bearing.

Preferably, the device further comprises a synchronizing mechanism, wherein the synchronizing mechanism is used for synchronizing the rotating speeds of the quick-change mechanism and the grinding head, and comprises a synchronizing groove fixed at one end of the body far away from the rotor and a synchronizing block fixed on the connecting rod; the synchronous groove is of a non-circular structure, the synchronous block and the synchronous groove are arranged in a copying mode, and the outer wall of the synchronous block abuts against the inner wall of the synchronous groove.

Preferably, the chamfer for avoiding assembly blocking is arranged at the inner wall corner and the notch of the synchronous groove.

Preferably, the first gear is configured as a cylindrical gear, and the second gear is configured as an internal gear.

Preferably, the shell is provided with a plurality of air-cooled airflow holes, and an included angle is formed between the axial direction of any air-cooled airflow hole and the radial direction of the shell.

Preferably, the abrasive disc is detachably fixed with the connecting rod, and the abrasive disc with different specifications can be replaced on the connecting rod according to different polishing requirements.

Compared with the prior art, the utility model has the advantages that:

(1) The quick-change mechanism is arranged, so that the grinding head can be conveniently and quickly replaced according to different processing requirements; and the grinding head is positioned by adopting the locking part, so that the grinding head can be installed without disassembling equipment.

(2) The through holes are matched with the bearings to form a space for accommodating the locking part, so that the structure of the body is easier to process and manufacture. Compared with a non-through hole structure, the method has the advantages that the same technical effect is ensured, and meanwhile, the production cost is reduced.

(3) The synchronous mechanism is arranged, and the hexagonal synchronous groove is matched with the synchronous block arranged in a profiling way, so that the rotating speed of the quick-change mechanism is ensured to be the same as that of the grinding head, and the replacement efficiency of the grinding head is not influenced. And the synchronous groove is provided with a chamfer to prevent deformation and damage caused by concentrated stress at the weak part of the corner.

(4) The transmission mechanism adopts the cooperation of the cylindrical gear and the internal gear, so that the space occupied by the transmission mechanism is reduced while the effective transmission ratio is provided, and the device is more compact.

(5) The abrasive disc is detachably connected with the connecting rod, so that the grinding head can replace the abrasive disc with different specifications on the connecting rod according to different processing requirements; and when the abrasive disc is damaged in the long-term use process, the abrasive disc is replaced only by itself, so that the connecting rod is reserved, and the use cost is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples:

FIG. 1 is a cross-sectional view of a quick change polishing apparatus according to the present utility model;

FIG. 2 is a schematic diagram of a quick change grinding head of a grinding device according to the present utility model;

FIG. 3 is a block diagram of the quick change mechanism of the present utility model (with a portion of the locking portion omitted);

FIG. 4 is a block diagram of a grinding head according to the present utility model;

wherein: 1. the machine head comprises a machine head body, 11, a shell body, 12, a stator, 13, a rotor, 14, an air cooling air flow hole, 2, a grinding head, 21, a grinding disc, 22, a connecting rod, 23, an annular groove, 3, a quick change mechanism, 31, a body, 32, a connecting hole, 33, a locking part, 331, a locking head, 332, a spring, 34, a through hole, 4, a transmission mechanism, 41, a cylindrical gear, 42, an internal gear, 5, a synchronous mechanism, 51, a synchronous groove, 52, a synchronous block, 53, a chamfer angle, 6 and a bearing.

Detailed Description

The following describes the present utility model in further detail with reference to specific examples:

as shown in fig. 1 and 2, a quick-change polishing apparatus includes a head 1 for outputting power, a grinding head 2 for polishing a workpiece, a quick-change mechanism 3 for quick-changing the grinding head 2, a transmission mechanism 4 for transmitting the power of the head 1 to the quick-change mechanism 3, and a synchronization mechanism 5 for synchronizing the rotational speeds of the quick-change mechanism 3 and the grinding head 2.

As shown in fig. 1, the machine head 1 comprises a casing 11 fixedly arranged, a plurality of air-cooled airflow holes 14 are formed in the casing 11, and a stator 12 and a rotor 13 which is matched with the stator 12 to rotate are fixed in the casing 11.

As shown in fig. 4, the grinding head 2 includes an abrasive disk 21 for grinding a workpiece and a connecting rod 22 detachably fixed in a vertical direction on the abrasive disk 21. In this embodiment, different abrasive discs 21 are provided with polishing portions of different specifications, and different abrasive discs 21 can be replaced on the connecting rod 22 according to polishing requirements. And when the abrasive disc 21 is damaged in the use process, only the damaged abrasive disc 21 needs to be replaced, and the connecting rod 22 does not need to be replaced.

As shown in fig. 3, one end of the quick-change mechanism 3 is rotatably connected with the machine head 1, and the other end of the quick-change mechanism is detachably fixed with the grinding head 2. The connecting rod comprises a body 31, wherein a connecting hole 32 is coaxially formed in the body 31, and the connecting hole 32 is matched with the connecting rod 22. The body 31 is further provided with a locking portion 33 for fixing the grinding head 2. In the present embodiment, the locking portions 33 are provided in two and 180 ° distributed. Comprising a spherical locking head 331 and a spring 332 connecting the locking head 331. The connecting rod 22 is provided with a ring groove 23 having a semicircular cross section in a radial direction, and the locking head 331 is provided at a corresponding position of the ring groove 23 in the locked state of the connecting rod 22. The locking head 331 slides into the ring groove 23 under the elastic force of the spring 332, thereby applying an axial restraining force to the grinding head 2. Under the action of external force which is in the axial direction and exceeds a preset value, the elastic force of the spring 332 is counteracted by the external force, the locking head 331 slides out of the annular groove 23, the axial constraint on the grinding head 2 is relieved, and the grinding head 2 can be taken out of the quick-change mechanism 3.

The body 31 is sleeved with the bearing 6, and the bearing 6 is embedded in the shell 11. The body 31 is provided with a through hole 34 along the radial direction, the locking part 33 is arranged in the through hole 34, and one end of the spring 332 away from the locking head 331 is fixed on the inner wall of the bearing 6.

As shown in fig. 3, the transmission mechanism 4 includes a cylindrical gear 41 fixed coaxially to the driving end of the rotor 13 in the horizontal direction, and an internal gear 42 kneaded with the cylindrical gear 41 and fixed to the body 31.

The synchronizing mechanism 5 includes a synchronizing groove 51 fixed to an end of the body 31 remote from the rotor 13 and a synchronizing block 52 fixed to the connecting rod 22. In this embodiment, the synchronization groove 51 is configured as an inner hexagon, and a chamfer 53 is provided at the corner. The synchronizing block 52 and the synchronizing groove 51 are arranged in a profiling mode, and the outer wall of the synchronizing block 52 abuts against the inner wall of the synchronizing groove 51, so that the synchronizing groove 51 of the synchronizing block 52 rotates synchronously, and the rotating speed of the grinding head 2 is guaranteed to be consistent with that of the quick-change mechanism 3.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same according to the content of the present utility model, and are not intended to limit the scope of the present utility model. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments and that the present utility model may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present utility model be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A quick change sharpening device, comprising:

2. A quick change sanding apparatus as defined in claim 1, wherein:

the connecting rod is matched with the connecting hole, and the connecting rod is provided with a ring groove; the ring groove is provided with a certain gradient;

3. The quick change polishing device as set forth in claim 2, wherein said body is externally sleeved with bearings, said bearings being embedded in said housing; the body is radially provided with a through hole, the locking part is arranged in the through hole, and one end of the elastic piece, which is far away from the locking head, is fixed on the inner wall of the bearing.

4. The quick-change polishing apparatus as set forth in claim 2, further comprising a synchronizing mechanism for synchronizing the rotational speeds of the quick-change mechanism and the grinding head, including a synchronizing groove fixed to an end of the body remote from the rotor, and a synchronizing block fixed to the connecting rod; the synchronous groove is of a non-circular structure, the synchronous block and the synchronous groove are arranged in a copying mode, and the outer wall of the synchronous block abuts against the inner wall of the synchronous groove.

5. The quick change polishing device as set forth in claim 4, wherein said synchronizing grooves are provided with chamfer angles at both inner wall corners and notches for preventing assembly jams.

6. A quick change sharpening device according to claim 2, wherein said first gear is provided as a cylindrical gear and said second gear is provided as an internal gear.

7. The quick-change polishing device as set forth in claim 1, wherein a plurality of air-cooled air flow holes are formed in the housing, and an included angle is formed between an axial direction of any one of the air-cooled air flow holes and a radial direction of the housing.

8. The quick-change polishing device according to claim 1, wherein the abrasive disc is detachably fixed to the connecting rod, and the abrasive disc with different specifications can be replaced on the connecting rod according to different polishing requirements.