Detachable polishing disk for polishing machine

Abstract

The utility model discloses a detachable polishing disk for a polishing machine, and relates to the technical field of polishing disks. The detachable polishing disc for the polishing machine comprises a polishing head and a driving shaft, a pressing column is installed at the back end of the polishing head, a limiting plate is fixedly arranged on the pressing column, limiting grooves are formed in the limiting plate in an annular array mode, the driving shaft is installed on the polishing machine, an inserting groove matched with the pressing column is formed in the driving shaft, and the pressing column is arranged in the inserting groove. A locking plate is arranged at the top end of the driving shaft and connected with the limiting plate in an attached mode, a shaft sleeve is rotationally connected to the driving shaft, and a gear ring is fixedly connected to the top end of the shaft sleeve. In order to overcome the defect that the stability of the polishing disc is reduced due to spring fixation, the pressing columns cannot move up and down in the inserting grooves through the matching effect of the limiting blocks and the limiting grooves, and then the stability of the polishing disc during operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing discs, in particular to a detachable polishing disc for a polishing machine. Background Art

[0002] The polishing disc is one of the key components of the polishing machine, which is used to grind and polish objects. In general, the polishing disc is installed on the polishing machine in a detachable connection, which is convenient for replacing the worn polishing disc later. In the prior art, in order to facilitate disassembly, some polishing machines use springs to drive limit blocks to clamp and fix the polishing disc, but the spring fixation will cause the polishing disc to have a slight displacement or shaking when rotating at high speed, thereby reducing the polishing accuracy.

[0003] Therefore, in order to solve the defect that the stability of the polishing disc is reduced due to spring fixation, it is necessary to propose a detachable polishing disc for a polishing machine. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable polishing disc for a polishing machine, through the cooperation of a limit block and a limit groove, the pressure column cannot move up and down in the slot, thereby improving the stability of the polishing disc during operation, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A detachable polishing disc for a polishing machine comprises a polishing head and a driving shaft, wherein a pressure column is installed at the back end of the polishing head, a limiting plate is fixed on the pressure column, and a limiting groove is provided in an annular array on the limiting plate;

[0007] The driving shaft is installed on the polishing machine and has a slot adapted to the pressure column inside. A locking plate is provided on the top of the driving shaft, and the locking plate is fit-connected to a limit plate. A sleeve is rotatably connected to the driving shaft, and a gear ring is fixedly connected to the top of the sleeve. A gear is meshed with a side end of the gear ring, and a rotating shaft is fixedly connected to the gear. The rotating shaft is movably connected to the locking plate, and the top end passes through the locking plate and is connected to a limit block adapted to the limit groove.

[0008] Preferably, the pressure column is connected to a pressure block via a connecting rod.

[0009] Preferably, slide grooves are symmetrically provided on both sides of the slot, a pull rod is movably provided in the slide groove, one end of the pull rod located in the slot is connected to a clamping block, and the clamping block is clamped between the pressure column and the pressure block.

[0010] Preferably, a spring is sleeved on the pull rod, one end of the spring is fixedly connected to the slide slot, and the other end of the spring is fixedly connected to the clamping block.

[0011] Preferably, a positioning pin is detachably connected to the shaft sleeve, and a first positioning hole and a second positioning hole adapted to the positioning pin are formed on the drive shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The detachable polishing disc used in the polishing machine ensures that the pressure column is fixed in the slot through the precise cooperation of the limit block and the limit slot, thereby eliminating the slight displacement or shaking of the polishing head when rotating at high speed, and significantly improving the stability and accuracy of the polishing head during the polishing process. At the same time, through the coordinated use of the locating pin and the first locating hole and the second locating hole, the precise alignment between the sleeve and the drive shaft is ensured, which can prevent the limit block from slipping out of the limit slot, and further enhance the rotation stability of the polishing disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural plan of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation of the polishing head of the utility model;

[0016] Figure 3 This is a schematic diagram of the splitting of the polishing head and the driving shaft of the utility model;

[0017] Figure 4 This is a schematic diagram of the use of the limit block and the limit groove of the utility model;

[0018] Figure 5 It is a schematic diagram of the positions of the first positioning hole and the second positioning hole of the utility model.

[0019] In the figure: 1, polishing head; 11, pressure column; 12, connecting rod; 13, pressure block; 14, limit plate; 141, limit groove; 2, drive shaft; 21, slot; 22, slide groove; 23, pull rod; 24, block; 25, spring; 26, locking plate; 27, bushing; 271, gear ring; 272, positioning pin; 28, gear; 281, rotating shaft; 282, limit block; 29, first positioning hole; 210, second positioning hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] To solve the technical problem of how to quickly disassemble and assemble the polishing disc, please refer to Figure 1-Figure 2 , this embodiment provides the following technical solutions:

[0022] A detachable polishing disc for a polishing machine comprises a polishing head 1 and a driving shaft 2. A pressure column 11 is installed at the back end of the polishing head 1. The pressure column 11 is connected to a pressure block 13 through a connecting rod 12. The driving shaft 2 is installed on the polishing machine and has a slot 21 adapted to the pressure column 11 opened inside.

[0023] Slide grooves 22 are symmetrically provided on both sides of the slot 21, and a pull rod 23 is movably provided in the slide groove 22. One end of the pull rod 23 located in the slot 21 is connected to a clamping block 24, and the clamping block 24 is clamped between the pressure column 11 and the pressure block 13. A spring 25 is sleeved on the pull rod 23, and one end of the spring 25 is fixedly connected to the slide groove 22, and the other end thereof is fixedly connected to the clamping block 24.

[0024] The diameter of the connecting rod 12 is smaller than the diameters of the pressure column 11 and the pressure block 13 , and the shape of the pressure block 13 matches the shape of the clamping block 24 .

[0025] Specifically, when the polishing disc needs to be installed, the pressure block 13 is first aligned with the slot 21 and inserted. At this time, the pressure block 13 moves downward in the slot 21 and pushes the block 24 outward to squeeze the spring 25 until the pressure block 13 moves to the lower end of the block 24 and is offset from it. Since the diameter of the connecting rod 12 is smaller than that of the pressure block 13, the spring 25 can push the block 24 to move inward until the block 24 is engaged between the pressure column 11 and the pressure block 13, thereby fixing the polishing disc. When the polishing disc needs to be disassembled, the two pull rods 23 are manually pulled outward, so that the pull rods 23 drive the block 24 to move outward until the block 24 moves out from between the pressure column 11 and the pressure block 13, and then the polishing disc is pulled out upward.

[0026] To solve the technical problem of how to keep the polishing disc stable during operation, please refer to Figure 3-Figure 5 , this embodiment provides the following technical solutions:

[0027] A limit plate 14 is fixed on the pressure column 11, and a limit groove 141 is provided in a ring array on the limit plate 14. A locking plate 26 is provided on the top of the driving shaft 2, and the locking plate 26 is closely connected to the limit plate 14. A shaft sleeve 27 is rotatably connected to the driving shaft 2, and a positioning pin 272 is detachably connected to the shaft sleeve 27. A first positioning hole 29 and a second positioning hole 210 adapted to the positioning pin 272 are provided on the driving shaft 2.

[0028] The top of the sleeve 27 is fixedly connected to a gear ring 271, the side end of the gear ring 271 is meshed with a gear 28, the gear 28 is fixedly connected to a rotating shaft 281, the rotating shaft 281 is movably connected to the locking plate 26, and the top end passes through the locking plate 26 and is connected to a limit block 282 adapted to the limit groove 141.

[0029] Among them, the limit block 282 is diamond-shaped and its width and length are adapted to the limit slot 141. When the positioning pin 272 is located in the first positioning hole 29, the limit block 282 can pass through the limit slot 141, and when the positioning pin 272 is located in the second positioning hole 210, the limit block 282 cannot pass through the limit slot 141.

[0030] Specifically, when the clamping block 24 is engaged between the pressure column 11 and the pressure block 13, the limit block 282 will pass through the limit groove 141 and be located above the limit groove 141. At this time, the sleeve 27 is manually rotated, and the sleeve 27 drives the gear ring 271 fixedly connected thereto to rotate, and the gear ring 271 then drives the gear 28 meshing therewith to rotate, and the gear 28 then drives the rotating shaft 281 fixedly connected thereto to rotate, and the rotating shaft 281 then drives the limit block 282 fixedly connected thereto to rotate until the limit block 282 rotates 90°, and the positioning pin 272 is inserted into the second positioning hole 210, so that the limit block 282 is horizontally blocked at the upper end of the limit groove 141, and the polishing disk and the drive shaft 2 are locked to prevent the pressure column 11 from shaking slightly up and down in the slot 21, thereby improving the stability during operation.

[0031] Working principle: This polishing machine uses a detachable polishing disc. When in use, first align the pressure block 13 with the slot 21 and insert it. At this time, the pressure block 13 moves down in the slot 21 and pushes the block 24 outward until the pressure block 13 moves to the lower end of the block 24. Then the block 24 will be moved inward by the spring 25 and engaged between the pressure column 11 and the pressure block 13. At the same time, the limit block 282 passes through the limit groove 141 and is located above the limit groove 141. The shaft sleeve 27 is manually rotated, and the shaft sleeve 27 drives the ring gear 271 to rotate. The ring gear 271 then drives the gear 28 meshing with it to rotate. The gear 28 drives the limit block 282 to rotate through the rotating shaft 281 until the limit block 282 rotates 90° and blocks the upper end of the limit groove 141. Finally, the positioning pin 272 is inserted into the second positioning hole 210 to achieve the locking of the polishing disc and the drive shaft 2.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable polishing disc for a polishing machine, comprising a polishing head (1) and a drive shaft (2), characterized in that: A pressure column (11) is installed at the back end of the polishing head (1), a limit plate (14) is fixedly provided on the pressure column (11), and a limit groove (141) is provided in an annular array on the limit plate (14); The drive shaft (2) is mounted on the polishing machine and has a slot (21) adapted to the pressure column (11) formed therein. A locking plate (26) is provided at the top end of the drive shaft (2). The locking plate (26) is closely connected to the limit plate (14). A shaft sleeve (27) is rotatably connected to the drive shaft (2). A gear ring (271) is fixedly connected to the top end of the shaft sleeve (27). A gear (28) is meshed with the side end of the gear ring (271). The gear (28) is fixedly connected to a rotating shaft (281). The rotating shaft (281) is movably connected to the locking plate (26). The top end of the shaft sleeve (27) passes through the locking plate (26) and is connected to a limit block (282) adapted to the limit groove (141).

2. The detachable polishing disc for a polishing machine according to claim 1, characterized in that: The pressure column (11) is connected to a pressure block (13) via a connecting rod (12).

3. The detachable polishing disc for a polishing machine according to claim 2, characterized in that: Slide grooves (22) are symmetrically provided on both sides of the slot (21), a pull rod (23) is movably provided in the slide groove (22), one end of the pull rod (23) located in the slot (21) is connected to a clamping block (24), and the clamping block (24) is clamped between the pressure column (11) and the pressure block (13).

4. The detachable polishing disc for a polishing machine according to claim 3, characterized in that: A spring (25) is sleeved on the pull rod (23), one end of the spring (25) is fixedly connected to the slide groove (22), and the other end of the spring (25) is fixedly connected to the clamping block (24).

5. The detachable polishing disc for a polishing machine according to claim 1, characterized in that: A positioning pin (272) is detachably connected to the shaft sleeve (27), and a first positioning hole (29) and a second positioning hole (210) adapted to fit the positioning pin (272) are provided on the drive shaft (2).

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