CN219987141U - Positioning mechanism and polishing device with same - Google Patents

Abstract

The utility model relates to a positioning mechanism and a polishing device with the positioning mechanism, and belongs to a polishing device. The clamping device comprises a positioning disc for placing a workpiece, a clamping piece for fixing the positioning disc, a pressing plate arranged on the top surface of the pressing plate and used for pressing the workpiece, and a locking piece for fixing the pressing plate, wherein the positioning disc is provided with a locking hole for the locking piece to be inserted, and the positioning disc is provided with a mounting hole matched with the clamping piece in a clamping mode. The utility model has the effect of improving the suitability of the positioning mechanism of the polishing device for workpieces with different sizes.

Description

Positioning mechanism and polishing device with same

Technical Field

The present disclosure relates to polishing devices, and particularly to a positioning mechanism and a polishing device with the positioning mechanism.

Background

The polishing device is used for polishing surfaces of a metal mold, a sealing workpiece and the like in the production and processing process, and is widely used in the processing field of products.

In the using process of the polishing machine, a workpiece is placed on a polishing platform, then the workpiece is positioned through a positioning mechanism, and after the workpiece is positioned, a polishing device is started for polishing. During the polishing operation, the suitability for workpieces is low, and the workpiece with a certain size can be positioned in normal conditions.

With respect to the above-described related art, the inventors have recognized a need for a positioning mechanism capable of fixing workpieces of different sizes.

Disclosure of Invention

In order to improve the suitability of a positioning mechanism of a polishing device for workpieces of different sizes, the utility model provides the positioning mechanism and the polishing device with the positioning mechanism.

The utility model provides a positioning mechanism and a polishing device with the positioning mechanism, which adopt the following technical scheme:

the utility model provides a positioning mechanism, is including being used for the positioning disk that the work piece placed, is used for fixing the holder of positioning disk, install in the positioning disk top surface and be used for compressing tightly the clamp plate of work piece and be used for fixing the retaining member of clamp plate, the positioning disk have with holder centre gripping complex mounting hole.

Through adopting above-mentioned technical scheme, select suitable positioning disk earlier according to the size of work piece, with the mounting hole and the clamping piece cooperation of positioning disk for the clamping piece is fixed to the positioning disk, then places the work piece of waiting to process in the positioning disk top surface, places the pressure strip at the top surface of work piece, fixes pressure strip and positioning disk through the retaining member, thereby realized that the work piece is fixed on the positioning disk, foretell positioning mechanism can fix the mounting disk and the clamping piece of equidimension not, thereby can adapt the work piece of equidimension not to polish.

Optionally, the clamping piece is a three-jaw chuck, the three-jaw chuck has the centre gripping the movable jaw of locating disk, the movable jaw includes along three-jaw chuck radial movement's removal portion, be used for the butt joint the butt portion of mounting hole inner wall.

Through adopting above-mentioned technical scheme, disclose the concrete structure of holder, arrange behind the terminal surface at three-jaw chuck when the positioning disk for three-jaw chuck's movable jaw is located the mounting hole of positioning disk, through rotating three-jaw chuck, makes the butt portion move towards the direction of keeping away from each other, compresses tightly to the inner wall of mounting hole until the butt, thereby realizes three-jaw chuck to the fixed of positioning disk.

Optionally, the bottom surface circumference of compact disc be arranged with the butt in the holding ring portion of three-jaw chuck terminal surface, the holding ring portion has the intercommunication in the mounting hole and supplies the radial slip groove of moving part.

Through adopting above-mentioned technical scheme, the setting of the groove that slides on the holding ring portion for when carrying out the centre gripping of positioning disk, can cooperate moving part and the groove that slides, realized the pre-positioning of positioning disk on three-jaw chuck.

Optionally, the positioning ring portion is provided with a guiding inclined plane for the moving portion to abut against on a side wall of the sliding groove.

Through adopting above-mentioned technical scheme, when placing the positioning disk at the top surface of three-jaw chuck, slide the groove and when the location cooperation of removal portion, through the setting of the direction inclined plane of sliding groove lateral wall for can make things convenient for operating personnel to place the positioning disk at three-jaw chuck, improve the installation effectiveness of the pre-positioning installation of positioning disk.

Optionally, the side edge of the positioning disc is provided with a positioning ring groove for placing the workpiece, and the side wall of the positioning ring groove is provided with an abutting surface for abutting the workpiece.

Through adopting above-mentioned technical scheme, the setting of locating ring groove for can play the prepositioning effect to the placing of work piece, and at the formation of locating ring groove lateral wall butt face, the butt face with the hole lateral wall butt of work piece, further improved the positioning effect of work piece on the positioning disk.

Optionally, the locking member is a locking bolt, the pressing plate has a placement through hole for the locking member to pass through, and the placement through hole is a bar-shaped hole arranged along the radial direction of the positioning disk.

Through adopting above-mentioned technical scheme, will place the through-hole and set up to the bar hole for the retaining member can be along placing the through-hole round trip movement, thereby makes the locating plate that the pressure strip can adapt to not unidimensional size, improves the suitability of pressure strip, reduces the cost of preparation and locating plate assorted pressure strip.

Optionally, the pressing plate is further provided with a gasket for the locking member to pass through on the top surface of the placing through hole.

Through adopting above-mentioned technical scheme, the setting of gasket for can increase the area of contact of retaining member and pressure strip, reduce the pressure of retaining member to the pressure strip, help protecting the pressure strip, and reduced the probability that the retaining member appears not hard up.

Optionally, the compacting plate is provided with two placing through holes, the two placing through holes are symmetrically arranged along the axis of the positioning disc, and the positioning disc is provided with locking holes corresponding to the placing through holes.

Through adopting above-mentioned technical scheme, the arrangement of two placing through-holes on the pressure strip can compress tightly the relative both sides of work piece for the pressure strip is comparatively ideal to the compaction effect of work piece, has reduced the probability that appears rocking when the work piece polishes.

The polishing device comprises a polishing machine and the positioning mechanism, wherein a polishing head of the polishing machine and the side edge above the top of the positioning disc are correspondingly arranged.

Through adopting above-mentioned technical scheme, select the locating disk of adaptation according to the work piece of polishing earlier, then place the locating disk on the three-jaw chuck and realize the butt fixedly through movable jack catch, place the work piece on the locating disk, realize the locking of work piece fixedly through pressure strip and retaining member, polish the work piece surface through polishing the head at last, adopt foretell positioning mechanism can adapt to unidimensional work piece, convenient operation.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the positioning mechanism comprises a positioning disc, a clamping piece, a pressing plate and a locking piece, an operator can select the matched positioning disc according to the size of a workpiece, the suitability of the positioning mechanism to the workpiece is improved, the operation is simple, and the positioning is convenient;

2. according to the utility model, the positioning ring part and the sliding groove at the bottom of the positioning ring part are arranged, so that after the positioning disc is placed on the three-jaw chuck, the positioning disc is positioned on the three-jaw chuck by matching the moving part with the sliding groove;

3. according to the utility model, through the arrangement of the placing through holes, the placing through holes are strip-shaped holes, so that the compacting plates can be matched with positioning plates with different sizes, and the adaptability of the compacting plates is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is an exploded schematic view of the positioning mechanism in embodiment 1.

Fig. 3 is an exploded view of the puck and the three-jaw chuck of example 1.

Reference numerals illustrate: 1. a positioning plate; 11. a locking part; 12. a positioning part; 121. positioning ring grooves; 122. an abutment surface; 13. a mounting hole; 14. a positioning ring portion; 141. a slip groove; 142. a guide slope; 15. a locking hole; 2. a three-jaw chuck; 21. a movable claw; 211. a moving part; 212. an abutting portion; 3. a compacting plate; 31. placing the through holes; 4. a locking member; 5. a gasket; 6. a grinding machine; 61. polishing the main body; 62. grinding head.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a positioning mechanism and a positioning mechanism with the same.

Example 1:

referring to fig. 1, a positioning mechanism includes a positioning plate 1, a clamping member for fixedly clamping the positioning plate 1, a pressing plate 3 disposed on the top surface of the positioning plate 1, and a locking member 4 for connecting the pressing plate 3 and the positioning plate 1. The positioning mechanism is mainly used for pressing the sealing ring in the sealing equipment.

Referring to fig. 2, the puck 1 has a disk shape as a whole. The positioning disk 1 is provided with a locking part 11 and a positioning part 12 from the inner center to the outside in sequence. The outer edge of the positioning disk 1 is provided with a positioning ring groove 121 for arranging the workpieces, namely the top surface of the locking part 11 is higher than the top surface of the positioning part 12. The locking portion 11 and the positioning portion 12 are stepped. The side wall of the positioning portion 12 at the connection with the locking portion 11 is formed with an abutment surface 122 for abutment of the inner hole of the work piece. When the workpiece is placed on the positioning disk 1, the whole workpiece is positioned in the positioning ring groove 121, and the inner hole wall of the workpiece is abutted with the abutting surface 122, so that the workpiece can be pre-fixed.

Referring to fig. 2 and 3, the holding member is a manual three-jaw chuck 2. In the present embodiment, the three-jaw chuck 2 is identical to the three-jaw chuck 2 of the related art in structure, and thus the specific structure of the three-jaw chuck 2 is not described again in the present utility model. The center portion of the puck 1 has mounting holes 13 penetrating through both side end surfaces for mating with the movable claws 21 of the three-claw chuck 2. The movable claw 21 includes a moving portion 211 and an abutting portion 212 perpendicularly connected to the moving portion 211. The moving portion 211 is movable radially along the axis of the three-jaw chuck 2. The abutting portion 212 and the moving portion 211 move synchronously, so that the abutting portion 212 can abut and be pressed against the inner wall of the mounting hole 13, and the three-jaw chuck 2 is connected with the positioning disc 1. The movable claw 21 can move the abutting portion 212 according to the size of the mounting hole 13 to clamp the inner wall of the mounting hole 13.

Referring to fig. 3, the bottom surface of the puck 1 is further provided with a retaining ring portion 14 for abutting against the end surface of the three-jaw chuck 2. The positioning ring part 14 is annular and is integrally formed with the positioning disk 1. The inner diameter of the inner hole of the positioning ring part 14 is the same as that of the mounting hole 13, and the inner diameter and the mounting hole are coaxially arranged. The bottom of the positioning ring portion 14 is provided with a sliding groove 141 penetrating through the inner side wall and the outer side wall and allowing the moving portion 211 to slide, so that after the positioning disk 1 is placed on the top surface of the three-jaw chuck 2, the moving portion 211 is located in the sliding groove 141, the bottom surface of the positioning ring portion 14 is attached to the end surface of the three-jaw chuck 2, and the pre-fixing stability of the positioning disk 1 is improved.

Referring to fig. 3, the positioning ring portion 14 is opened at the bottom of the sliding groove 141 to have a guide slope 142 at the side wall. The guide slope 142 is inclined upward in a direction away from the moving portion 211 so that the moving portion 211 of the movable claw 21 and the sliding groove 141 of the positioning ring portion 14 are conveniently fitted.

Referring to fig. 2, the compacting plate 3 is in the shape of an elongated plate as a whole, and the length of the compacting plate 3 is greater than the outer diameter of the workpiece. The locking member 4 is a locking bolt, and the pressing plate 3 is provided with a placing through hole 31 penetrating through the end faces of the two sides and allowing the locking member 4 to pass through. The positioning disk 1 is provided with a locking hole 15 for inserting the locking member 4 on the top surface of the locking portion 11. The locking piece 4 is in threaded fit with the locking hole 15 and is used for realizing the compressing and fixing effect of the compressing plate 3 on a workpiece. In the present embodiment, in order to reduce damage caused when the pressing plate 3 presses the workpiece, the pressing plate 3 is made of a wooden material so that the workpiece surface can be protected.

Referring to fig. 2, the placement through holes 31 are bar-shaped holes and are arranged in the length direction of the pressing plate 3 so that the locking member 4 can move back and forth in the placement through holes 31 to thereby fit the positioning disks 1 of different sizes. In this embodiment, the pressing plate 3 has two placing through holes 31, the two placing through holes 31 are respectively located at two sides of the pressing plate 3, and the positioning disk 1 has locking holes 15 corresponding to the placing through holes 31 one by one.

Referring to fig. 2, the pressing plate 3 is further provided with a spacer 5 for passing the locker 4 on the top surface of the placement through hole 31. The gasket 5 is in a disc shape as a whole. The external diameter of gasket 5 is greater than the width of placing through-hole 31 to make after retaining member 4 and locking hole 15 screw-fit, retaining member 4 compresses tightly gasket 5 at the top surface of pressure strip 3, helps reducing the pressure of retaining member 4 to pressure strip 3, improves pressure strip 3's life-span.

The positioning mechanism in embodiment 1 is implemented according to the following principle: firstly, selecting an adaptive positioning disc 1 according to the size of a workpiece, installing and matching a positioning ring part 14 of the positioning disc 1 and a movable claw 21 of a three-claw chuck 2, manually driving an abutting part 212 to abut and press against the inner wall of an installation hole 13 of the positioning disc 1, and fixing the positioning disc 1; the workpiece is then placed on the puck 1, and is pressed against the surface of the puck 1 by the pressure plate 3 and the retaining member 4.

Example 2:

referring to fig. 1, a polishing apparatus includes a polishing machine 6 and the positioning mechanism of embodiment 1. The sander 6 is a prior art sanding device and the specific construction will not be described in the present utility model. The polishing machine 6 includes a polishing main body 61 and a polishing head 62 rotatably provided to the polishing main body 61 and used for polishing a surface of a workpiece. The grinding machine 6 is capable of driving the grinding head 62 to move in the horizontal direction so as to adapt to workpieces of different sizes.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (9)

1. The utility model provides a positioning mechanism, its characterized in that, including being used for supplying positioning disk (1) that the work piece was placed, being used for fixing clamping piece, install in positioning disk (1) top surface and be used for compressing tightly clamp plate (3) of work piece and be used for fixing clamp plate (3) retaining member (4), positioning disk (1) have confession retaining member (4) male locking hole (15), positioning disk (1) have with clamping piece centre gripping complex mounting hole (13).

2. A positioning mechanism as recited in claim 1, wherein: the clamping piece is a three-jaw chuck (2), the three-jaw chuck (2) is provided with movable jaws (21) for clamping the positioning disc (1), and the movable jaws (21) comprise moving parts (211) which move along the radial direction of the three-jaw chuck (2) and abutting parts (212) which are used for abutting against the inner wall of the mounting hole (13).

3. A positioning mechanism as claimed in claim 2, wherein: the bottom surface circumference of positioning disk (1) is arranged and is butt in positioning ring portion (14) of three-jaw chuck (2) terminal surface, positioning ring portion (14) have in mounting hole (13) and supply sliding groove (141) of moving portion (211) radial movement.

4. A positioning mechanism as claimed in claim 3, wherein: the positioning ring part (14) is provided with a guide inclined surface (142) on the side wall of the sliding groove (141) for the movable part (211) to abut against.

5. A positioning mechanism as recited in claim 1, wherein: the side edge of the positioning disc (1) is provided with a positioning ring groove (121) for placing a workpiece, and an abutting surface (122) for abutting the workpiece is formed on the side wall of the positioning ring groove (121).

6. A positioning mechanism as recited in claim 1, wherein: the locking piece (4) is a locking bolt, the pressing plate (3) is provided with a placing through hole (31) for the locking piece (4) to pass through, and the placing through hole (31) is a strip-shaped hole arranged along the radial direction of the positioning disc (1).

7. A positioning mechanism according to claim 6, wherein the hold-down plate (3) is further provided with a spacer (5) on the top surface of the placement through hole (31) through which the locking member (4) passes.

8. A positioning mechanism as recited in claim 7, wherein: the compaction plate (3) is provided with two placing through holes (31), the two placing through holes (31) are symmetrically arranged along the axis of the positioning disc (1), and the positioning disc (1) is provided with locking holes (15) corresponding to the placing through holes (31).

9. Grinding device, comprising a grinding machine (6), characterized in that: the positioning mechanism of any one of claims 1-8, wherein the grinding head (62) of the grinding machine (6) is arranged corresponding to the upper side edge of the top of the positioning disk (1).