CN107855934B - Polishing jig - Google Patents
Polishing jig Download PDFInfo
- Publication number
- CN107855934B CN107855934B CN201711230815.9A CN201711230815A CN107855934B CN 107855934 B CN107855934 B CN 107855934B CN 201711230815 A CN201711230815 A CN 201711230815A CN 107855934 B CN107855934 B CN 107855934B
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- gear
- driving
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a polishing jig, which comprises: a frame; the clamping block is used for clamping a workpiece; the clamping block is fixed on a gear shaft of the driven gear so as to drive the workpiece to rotate by the rotation of the gear shaft of the driven gear; the height compensation mechanism is arranged on the rack and is connected with gear shafts of the driving gear and the driven gear so as to drive the steering gear mechanism to move in a preset path relative to the rack, so that the displacement generated in the vertical direction when the workpiece rotates is compensated, and the grinding surface of the workpiece is matched with the grinding head; and the driving mechanism is in transmission connection with the steering gear mechanism and the height compensation mechanism respectively so as to drive the steering gear mechanism and the height compensation mechanism simultaneously. Above-mentioned tool of polishing, the course of working of polishing is steady, avoids beating and collapses and arris line, and the work piece only needs clamping once, has improved production efficiency.
Description
Technical Field
The invention relates to the technical field of surface grinding and polishing equipment, in particular to a grinding jig.
Background
Along with the fact that people have higher and higher requirements on external light of products, more and more products are designed into complex curved surfaces so as to improve the design feeling and the attractiveness of the products, particularly shell parts of smart phones.
However, in the conventional outer surface polishing process of a workpiece with a complex curved surface, different polishing heads are used for polishing each outer surface of the workpiece at multiple angles, and then a transition surface between two adjacent outer surfaces is polished. Therefore, the defects of collapse and ridge line are easily caused, and the number of processes is large, and the production efficiency is low.
disclosure of Invention
therefore, it is necessary to provide a polishing jig which avoids the defects of collapse and ridge lines and has high production efficiency, aiming at the technical problems that the defects of collapse and ridge lines are easy to occur in the traditional polishing process, and the technical problems of more processes and low production efficiency are solved.
The tool of polishing includes:
a frame;
the clamping block is used for clamping a workpiece;
The steering gear mechanism is movably arranged on the rack in a preset path relative to the rack and comprises a driving gear and a driven gear, a gear set is formed on the driving gear and the driven gear, and the clamping block is fixed on a gear shaft of the driven gear so that the gear shaft of the driven gear rotates to drive the workpiece to rotate;
The height compensation mechanism is arranged on the rack and is connected with a gear shaft of the driving gear and a gear shaft of the driven gear so as to drive the steering gear mechanism to move in a preset path relative to the rack, so that the displacement generated in the vertical direction when the workpiece rotates is compensated, and the grinding surface of the workpiece is matched with the grinding head;
And the driving mechanism is in transmission connection with the steering gear mechanism and the height compensation mechanism respectively so as to drive the steering gear mechanism to drive the workpiece to rotate and drive the height compensation mechanism at the same time.
According to the polishing jig, a workpiece to be polished is clamped in the clamping block, and the polishing head is located above the workpiece and matched with the workpiece so as to polish the surface of the workpiece by the polishing head. The steering gear mechanism drives the workpiece to rotate, so that the polishing head can polish different polishing surfaces of the workpiece. The height compensation mechanism drives the workpiece to move along a preset path relative to the rack, so that the displacement generated in the vertical direction when the workpiece rotates is compensated, the grinding surface of the workpiece and the grinding head are always kept matched, and the grinding head sequentially grinds and processes all the grinding surfaces of the workpiece.
therefore, before polishing processing begins, the clamping block clamps the workpiece at an initial position, and one side surface of the workpiece is opposite to the polishing head positioned above the workpiece and matched with the polishing head. When the workpiece rotates 180 degrees from the initial state, the polishing head sequentially polishes and processes the side surface, the transition surface, the bottom plate, the other transition surface and the other side surface of the workpiece in one time. The whole sequence polishing process only uses the same polishing head, the polishing process is stable, the defects of collapse and ridge lines are avoided, the whole sequence polishing process is completed in one process, the workpiece only needs to be clamped once, and the production efficiency is improved.
In one embodiment, the rack is provided with oppositely arranged first mounting parts at one side, each first mounting part is provided with a pair of rails respectively, the rails extend in a wave shape along the vertical direction, and the gear shaft of the driving gear and the gear shaft of the driven gear are movably connected to the corresponding rails on the two oppositely arranged first mounting parts respectively, so that the steering gear mechanism can move in a preset path relative to the rack.
In one embodiment, the height compensation mechanism further comprises a pushing block, the pushing block is respectively connected to the gear shaft of the driving gear and the gear shaft of the driven gear, the gear shaft of the driven gear extends out of the end of the first mounting portion, and the driving mechanism is connected to the pushing block so as to push the pushing block to move along the track.
in one embodiment, the steering gear mechanism further includes a rack and a steering gear, the rack is disposed in the track at one end of the gear shaft of the driven gear, and the steering gear is mounted at one end of the gear shaft of the driven gear, can rotate relative to the gear shaft of the driven gear, and is respectively engaged with the rack and the driving gear, so that the gear shaft of the driven gear moves along the track to drive the steering gear to rotate, and further drive the driving gear to rotate.
In one embodiment, the gear set further comprises at least one transmission gear, and the at least one transmission gear is in transmission connection between the driving gear and the driven gear, so that the driving gear rotates to drive the driven gear to rotate.
In one embodiment, the steering gear mechanism includes two sets of the gear sets, two racks and two steering gears, the clamping block is fixed between the two driven gears, the two racks are respectively installed in the tracks connected with the two ends of the gear shaft of the driven gears, and the two steering gears are respectively rotatably installed at the two ends of the gear shaft of the driven gears, and are respectively engaged with the two corresponding racks and simultaneously engaged with the two corresponding driving gears.
In one embodiment, the height compensation mechanism includes a cam and a link, the cam is rotatably mounted on the frame, two ends of the link are respectively rotatably connected to ends of gear shafts of the driving gear and the driven gear, which are located on the same side, the gear shaft of the driving gear is in transmission connection with the cam, and the driving mechanism is in transmission connection with the cam to drive the cam to rotate, so as to drive the steering gear mechanism to move in the vertical direction, so as to move the workpiece in the vertical direction, thereby compensating for displacement generated in the vertical direction when the workpiece rotates.
In one embodiment, the two cams and the two connecting rods are respectively in transmission connection with two ends of a gear shaft of the driving gear, the same end parts of the two connecting rods are respectively and rotatably connected to two ends of a gear shaft of the driven gear, and the other end parts of the two connecting rods are respectively and rotatably connected to two ends of a gear shaft of the driving gear.
In one embodiment, a second mounting portion is oppositely arranged on one side of the rack, a slide groove extending along the vertical direction is formed in the second mounting portion, and the connecting rod can be slidably mounted in the slide groove along the slide groove.
In one embodiment, the driving mechanism includes a driving shaft, and a driving gear set, the cam is connected to the driving shaft in a transmission manner, so that the driving shaft rotates to drive the cam to rotate, and the driving gear set is connected between the driving shaft and the gear shaft of the driving gear in a transmission manner, so that the gear shaft of the driving gear is rotated by the driving shaft.
Drawings
FIG. 1 is a schematic view of a workpiece structure of a rear shell of a mobile phone;
Fig. 2 is a schematic structural diagram of a polishing jig according to an embodiment of the present application;
Fig. 3 is a schematic structural view of the polishing jig shown in fig. 2;
fig. 4 is a schematic structural view of a polishing jig according to another embodiment of the present application;
Fig. 5 is a schematic structural view of the polishing jig shown in fig. 4.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In order to facilitate understanding of the technical solution of the present invention, a mobile phone rear shell workpiece is taken as an example for description. As shown in fig. 1, a mobile phone rear case workpiece will be described first. The surface of the workpiece 10 to be surface-processed includes a bottom surface 13, two opposite side surfaces 11, and transition surfaces 15 between the bottom surface 13 and the two side surfaces 11. The bottom surface 13 and the side surface 11 are generally designed as smooth curved surfaces, and the transition surface 15 is generally designed as a curved surface and is in smooth transition, so that the ornamental value of the product appearance is improved. However, the defects of collapse and ridge lines are easily generated at smooth transition positions and complex curved surfaces by adopting the traditional surface grinding process, and the production efficiency is low due to the fact that a plurality of processes and multiple clamping are needed. Therefore, it is necessary to provide a polishing jig which avoids the defects of collapse and ridge line and has high production efficiency.
As shown in fig. 2, the polishing jig according to an embodiment of the present invention includes a frame 110, a clamping block 120, a steering gear mechanism (not shown), a height compensation mechanism (not shown), and a driving mechanism (not shown).
The clamping block 120 is used for clamping the workpiece 10, the steering gear mechanism is movably mounted on the frame 110 in a preset path relative to the frame 110, the steering gear mechanism includes a driving gear 130 and a driven gear 132, a gear set is formed on the driving gear 130 and the driven gear 132, and the clamping block 120 is fixed on a gear shaft of the driven gear 132, so that the gear shaft of the driven gear 132 rotates to drive the workpiece 10 to rotate.
The height compensation mechanism is installed at the frame 110 and is connected to the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 to drive the steering gear mechanism to be movable in a predetermined path with respect to the frame 110, thereby compensating for a displacement in a vertical direction due to the rotation of the workpiece 10, and thus keeping the polishing surface of the workpiece 10 in cooperation with the polishing head.
The driving mechanism is respectively connected with the steering gear mechanism and the height compensation mechanism in a transmission way so as to drive the steering gear mechanism to drive the workpiece 10 to rotate and drive the height compensation mechanism.
according to the polishing jig, the workpiece 10 to be polished is clamped in the clamping block, and the polishing head is located above the workpiece 10 and matched with the workpiece 10, so that the surface of the workpiece is polished by the polishing head. The steering gear mechanism drives the workpiece 10 to rotate, so that the polishing head can polish different polishing surfaces of the workpiece 10. The height compensation mechanism drives the workpiece 10 to move along a preset path relative to the frame 110, so that the displacement generated in the vertical direction when the workpiece 10 rotates is compensated, the grinding surface of the workpiece 10 is always matched with the grinding head, and the grinding head sequentially grinds and processes all the grinding surfaces of the workpiece 10.
Therefore, before the polishing process is started, the clamping block 120 clamps the workpiece 10 at the initial position, and one side 11 of the workpiece 10 is opposite to the polishing head above the workpiece 10 and matched with the polishing head. When the workpiece 10 rotates 180 degrees from the initial state, the polishing head sequentially polishes the side surface 11, the transition surface 15, the bottom plate 13, the other transition surface 15 and the other side surface 11 of the workpiece 10 once. The whole sequence polishing process only uses the same polishing head, the polishing process is stable, the defects of collapse and ridge lines are avoided, the whole sequence polishing process is completed in one process, the workpiece 10 only needs to be clamped once, and the production efficiency is improved.
It will be appreciated that the workpiece 10 is clamped to the clamping block 120 and that when the workpiece 10 is merely rotated and not moved in a vertical direction, the distance of the workpiece 10 from the sanding head above the workpiece 10 changes, resulting in the workpiece striking the sanding head or moving away from the sanding head. Therefore, while the workpiece 10 rotates, the driving mechanism drives the height compensation mechanism to move the workpiece 10 in the vertical direction to compensate for the distance change between the workpiece 10 and the polishing head caused by the rotation of the workpiece 10, so that one side of the workpiece 10 close to the polishing head is always matched with the polishing head, and the workpiece 10 is smoothly and sequentially polished.
in one embodiment, the rack 110 is provided with first mounting portions 1101 disposed opposite to each other at one side, each of the first mounting portions 1101 is provided with a pair of rails 142, the rails 142 extend in a wave shape in a direction perpendicular to the vertical direction, and the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 are movably connected to the corresponding rails 142 of the two first mounting portions 1101 disposed opposite to each other, respectively, so that the steering gear mechanism is movable in a predetermined path with respect to the rack 110.
Referring to fig. 3, in one embodiment, the height compensation mechanism further includes a pushing block 140, the pushing block 140 is connected to the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 respectively, which extend out of the end of the first mounting portion 1101, and the driving mechanism is connected to the pushing block 140 to push the pushing block 140 to move along the rail 142. In this way, when the driving gear 130 and the driven gear 132 move along the rail 142, the workpiece 10 is driven to move along the rail 142, and the rail 142 is wavy, so that the workpiece 10 is displaced in the vertical direction, thereby compensating for the displacement in the vertical direction caused by the rotation of the workpiece 10, and further keeping the grinding surface of the workpiece 10 matched with the grinding head 20.
Further, the wavy track 142 includes three wave crests and two wave troughs, and the two ends of the track 142 are wave crests, so that the movement of the workpiece 10 along the track 142 is matched with the rotation of the workpiece 10, the displacement of the workpiece 10 in the vertical direction caused by the rotation is compensated, and the workpiece 10 is always matched with the polishing head 20.
Further, the steering gear mechanism further includes a rack 134 and a steering gear 136, the rack 134 is disposed in a track 142 at one end of the gear shaft of the driven gear 132, and the steering gear 136 is mounted at one end of the gear shaft of the driven gear 132, is rotatable relative to the gear shaft of the driven gear 132, and is engaged with the rack 134 and the driving gear 130, respectively. When the driving mechanism drives the pushing block 140 to move along the rail 142, the steering gear 136 is driven to rotate, so as to drive the driving gear 130 and the driven gear 132 formed with the gear set to rotate, so as to rotate the workpiece 10.
Specifically, the steering gear mechanism further includes a bearing (not shown) fitted to one end of the gear shaft of the driven gear 132, and the steering gear 136 is fitted to the bearing. In this way, it is achieved that the steering gear 136 is rotatably mounted to the gear shaft of the driven gear 132 with respect to the gear shaft of the driven gear 132.
Further, the gear set further comprises at least one driving gear 138, and the at least one driving gear 138 is drivingly connected between the driving gear 130 and the driven gear 132, so that the driving gear 130 rotates to drive the driven gear 132 to rotate.
In particular, the drive mechanism may be a hydraulic cylinder drive or a pneumatic cylinder drive.
In one embodiment, the steering gear mechanism includes two sets of gears, two racks 134 and two steering gears 136, the clamping block 120 is fixed between the two driven gears 132, the two racks 134 are respectively installed in the tracks 142 at two opposite ends of the gear shaft of the driven gears 132, and the two steering gears 136 are respectively installed at two ends of the gear shaft of the driven gears 132 in a manner of being capable of rotating around the axis thereof, and are respectively engaged with the two corresponding racks 134 and simultaneously engaged with the two corresponding driving gears 132. So, clamping piece 120 is driven by the driven gear 132 of its both sides simultaneously and takes place to rotate for clamping piece 120 rotates more steadily, further promotes the processingquality of polishing.
referring to fig. 4 and 5, in another embodiment, the height compensation mechanism may be a cam driving mechanism. Specifically, the height compensation mechanism includes a cam 141 and a connecting rod 143, the cam 141 is rotatably installed on the frame 110, two ends of the connecting rod 143 are respectively rotatably connected to the end portions of the same side where the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 are located, the gear shaft of the driving gear 130 is in transmission connection with the cam 141, and the driving mechanism is in transmission connection with the cam 141 to drive the cam 141 to rotate, so as to drive the steering gear mechanism to move in the vertical direction, so as to move the workpiece 10 in the vertical direction, thereby compensating for the displacement generated in the vertical direction when the workpiece 10 rotates, and further keeping the grinding surface of the workpiece 10 matched with the grinding head.
Further, the two cams 141 and the two connecting rods 143 each include two cams 141, the two cams 141 are respectively in transmission connection with two ends of the gear shaft of the driving gear 130, the same end portions of the two connecting rods 143 are respectively rotatably connected to two ends of the gear shaft of the driven gear 132, and the other end portions of the two connecting rods 143 are respectively rotatably connected to two ends of the gear shaft of the driving gear 130.
specifically, the opposite ends of the connecting rod 143 are both provided with mounting holes, and the ends of the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 at the same end are respectively inserted into the mounting holes at the two ends of the connecting rod 143 and can rotate around respective axes relative to the connecting rod 143. Further, the aperture of the mounting hole is larger than the diameter of the corresponding gear shaft of the driving gear 130 or the gear shaft of the driven gear 132, thereby enabling the gear shaft of the driving gear 130 and the gear shaft of the driven gear 132 to be rotatable about the respective axes with respect to the link 143.
Further, a second mounting portion 1102 is disposed at one side of the frame 110, the second mounting portion 1102 is provided with a slide groove 1103 extending along the vertical direction, and the link 143 is slidably mounted in the slide groove 1103 along the extending direction of the slide groove 1103. As such, the row position groove 1103 functions to guide the link 143 such that when the cam 141 moves the link 143, the link 143 moves along the row position groove 1103, that is, the link 143 moves in a vertical direction.
Further, the driving mechanism includes a driving shaft 150, and the cam 141 is connected to the driving shaft 150 in a transmission manner, so that the driving shaft 150 rotates to drive the cam 141 to rotate.
Further, the driving mechanism further includes a driving gear set 152, and the driving gear set 152 is drivingly connected between the driving shaft 150 and the gear shaft of the driving gear 130, so that the driving shaft 150 rotates to drive the gear shaft of the driving gear 130 to rotate.
Further, the driving mechanism further includes a driving device connected to the driving shaft 150 to drive the driving shaft 150 to rotate by the driving device.
Specifically, the inner wall of the shaft hole (not shown) of the cam 141 and the radial sidewall of the driving shaft 150 are both provided with a key slot (not shown), the driving shaft 150 is inserted into the shaft hole of the cam 141, and a key (not shown) is disposed in the two key slots, so as to realize the transmission connection between the cam 141 and the driving shaft 150.
Specifically, the driving gear set 152 includes an input gear (not shown), at least two intermediate gears (not shown), and an output gear (not shown), where the at least two intermediate gears are respectively engaged with the input gear and the output gear, so that the input gear rotates to drive the output gear to rotate, the input gear is in transmission connection with the driving shaft 150, and the output gear is in transmission connection with the gear shaft of the driving gear 130, so that the driving shaft 150 rotates to drive the gear shaft of the driving gear 130 to rotate.
Specifically, the driving gear set 152 further includes a plurality of connecting rods 1520, gear shafts of two adjacent gears of the at least two intermediate gears are rotatably connected to opposite ends of the connecting rods 1520, respectively, and a gear shaft of one end of the at least two intermediate gears and a gear shaft of the driving gear 130 are rotatably connected to opposite ends of the connecting rods 1520, respectively, and a gear shaft of the other end of the at least two intermediate gears and a gear shaft of the driven gear 132 are rotatably connected to opposite ends of the connecting rods 1520, respectively. Thus, when the gear shaft of the driving gear 130 is driven by the height compensation mechanism to move in the vertical direction, the distance between the gear shaft of the driving gear 130 and the driving shaft 150 changes, and at least two intermediate gears can automatically rotate to adapt to the change of the distance between the gear shaft of the driving gear 130 and the driving shaft 150, so as to ensure that the driving shaft 150 can always drive the gear shaft of the driving gear 130 to rotate.
It will be appreciated that the gear-to-shaft drive connection described above may be keyed, such as the cam 141-to-drive connection of the drive shaft 150.
Specifically, the driving device includes a driving member (not shown), a pulley 154 and a transmission belt (not shown), the driving member is fixedly mounted on the frame 110, the pulley 154 is fixedly mounted on the driving shaft 150, and the transmission belt is sleeved between the driving member and the pulley 154 to rotate the driving member driving the pulley 154.
Further, the driving member may be a driving motor, and a transmission belt is sleeved between an output shaft of the driving motor and the belt wheel 154, so that the output shaft of the driving motor rotates to drive the belt wheel 154 to rotate.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The tool of polishing, its characterized in that includes:
A frame;
the clamping block is used for clamping a workpiece;
The steering gear mechanism is movably arranged on the rack in a preset path relative to the rack and comprises a driving gear and a driven gear, a gear set is formed on the driving gear and the driven gear, and the clamping block is fixed on a gear shaft of the driven gear so that the gear shaft of the driven gear rotates to drive the workpiece to rotate;
The height compensation mechanism is arranged on the rack and is connected with a gear shaft of the driving gear and a gear shaft of the driven gear so as to drive the steering gear mechanism to move in a preset path relative to the rack, so that the displacement generated in the vertical direction due to the rotation of the workpiece is compensated, and the grinding surface of the workpiece is matched with the grinding head;
The driving mechanism is in transmission connection with the steering gear mechanism and the height compensation mechanism respectively so as to drive the steering gear mechanism to drive the workpiece to rotate and drive the height compensation mechanism simultaneously;
First mounting parts which are oppositely arranged are arranged on one side of the rack, each first mounting part is respectively provided with a pair of rails, the rails extend in a wave shape along the vertical direction, and a gear shaft of the driving gear and a gear shaft of the driven gear are respectively movably connected to the corresponding rails on the two oppositely arranged first mounting parts, so that the steering gear mechanism can move in a preset path relative to the rack; or, the height compensation mechanism comprises a cam and a connecting rod, the cam is rotatably mounted on the rack, two ends of the connecting rod are respectively rotatably connected to the end parts of the gear shaft of the driving gear and the gear shaft of the driven gear, which are positioned on the same side, the gear shaft of the driving gear is in transmission connection with the cam, and the driving mechanism is in transmission connection with the cam to drive the cam to rotate, so that the steering gear mechanism is driven to move in the vertical direction, the workpiece is driven to move in the vertical direction, and displacement generated in the vertical direction when the workpiece rotates is compensated.
2. The grinding jig of claim 1, wherein the height compensation mechanism further comprises a pushing block, the pushing block is respectively connected to the gear shaft of the driving gear and the gear shaft of the driven gear, the gear shaft of the driven gear extends out of the end of the first mounting portion, and the driving mechanism is connected to the pushing block to push the pushing block to move along the track.
3. The grinding jig according to claim 2, wherein the steering gear mechanism further comprises a rack and a steering gear, the rack is disposed in the track at one end of the gear shaft of the driven gear, the steering gear is mounted at one end of the gear shaft of the driven gear and can rotate relative to the gear shaft of the driven gear and respectively engage with the rack and the driving gear, so that the gear shaft of the driven gear moves along the track to drive the steering gear to rotate, and further drive the driving gear to rotate.
4. The polishing tool of claim 3, wherein the gear set further comprises at least one transmission gear, and the at least one transmission gear is connected between the driving gear and the driven gear in a transmission manner, so that the driving gear rotates to drive the driven gear to rotate.
5. The polishing jig according to claim 3, wherein the steering gear mechanism comprises two sets of the gear sets, two racks and two steering gears, the clamping block is fixed between the two driven gears, the two racks are respectively mounted in the tracks connecting two ends of the gear shaft of the driven gears, and the two steering gears are respectively rotatably mounted at two ends of the gear shaft of the driven gears, and are respectively engaged with the two corresponding racks and simultaneously engaged with the two corresponding driving gears.
6. The polishing jig according to claim 1, wherein the number of the cams and the number of the connecting rods each include two cams, the two cams are respectively in transmission connection with two ends of a gear shaft of the driving gear, the same end portions of the two connecting rods are respectively rotatably connected to two ends of a gear shaft of the driven gear, and the other end portions of the two connecting rods are respectively rotatably connected to two ends of a gear shaft of the driving gear.
7. The grinding jig according to claim 1 or 6, wherein a second mounting portion is oppositely arranged on one side of the machine frame, a slide groove extending in the vertical direction is formed in the second mounting portion, and the connecting rod can be slidably mounted in the slide groove along the slide groove.
8. the grinding jig of claim 1, wherein the driving mechanism comprises a driving shaft and a driving gear set, the cam is in transmission connection with the driving shaft so that the driving shaft rotates to drive the cam to rotate, and the driving gear set is in transmission connection between the driving shaft and the gear shaft of the driving gear so that the driving shaft rotates to drive the gear shaft of the driving gear to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230815.9A CN107855934B (en) | 2017-11-29 | 2017-11-29 | Polishing jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711230815.9A CN107855934B (en) | 2017-11-29 | 2017-11-29 | Polishing jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107855934A CN107855934A (en) | 2018-03-30 |
| CN107855934B true CN107855934B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711230815.9A Active CN107855934B (en) | 2017-11-29 | 2017-11-29 | Polishing jig |
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| CN (1) | CN107855934B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112544183A (en) * | 2020-12-18 | 2021-03-26 | 秦皇岛赤兔科技开发有限公司 | Greenhouse seeding device |
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| CN205415189U (en) * | 2016-03-18 | 2016-08-03 | 浙江万丰科技开发股份有限公司 | Magnesium alloy equipment of polishing of motormeter frame |
| CN206567933U (en) * | 2017-03-16 | 2017-10-20 | 金国品 | Circular knife grinder |
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| US5895311A (en) * | 1996-06-06 | 1999-04-20 | Fuji Xerox Co., Ltd. | Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same |
| DE69940566D1 (en) * | 1998-12-01 | 2009-04-23 | Univ London | A polishing apparatus having drive means for guiding the grinding tool along a precession path and methods of using the same |
| CN103406782B (en) * | 2013-07-29 | 2015-12-02 | 唐山轨道客车有限责任公司 | Retaining wall on slope servicing unit and retaining wall on slope equipment |
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| CN107020532B (en) * | 2017-06-21 | 2023-06-27 | 吉林大学 | Automatic turning device for milling top surface of V-shaped engine cylinder body |
| CN107378539A (en) * | 2017-08-22 | 2017-11-24 | 苏州威富达精密机械制造有限公司 | A kind of attaching nut's slant hole processing device |
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| CN205415189U (en) * | 2016-03-18 | 2016-08-03 | 浙江万丰科技开发股份有限公司 | Magnesium alloy equipment of polishing of motormeter frame |
| CN206567933U (en) * | 2017-03-16 | 2017-10-20 | 金国品 | Circular knife grinder |
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