CN113070623B - Positioning mechanism and positioning method - Google Patents
Positioning mechanism and positioning method Download PDFInfo
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- CN113070623B CN113070623B CN202110257659.5A CN202110257659A CN113070623B CN 113070623 B CN113070623 B CN 113070623B CN 202110257659 A CN202110257659 A CN 202110257659A CN 113070623 B CN113070623 B CN 113070623B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a positioning mechanism which comprises a fixed plate, a clamping device and a positioning device, wherein the clamping device and the positioning device are arranged on the fixed plate. The clamping device is used for clamping a workpiece to be positioned. The positioning device is used for adjusting the position of the clamped workpiece; the positioning device comprises an adjusting device and a plurality of loose clamping blocks fixedly connected with the adjusting device, and the adjusting device can drive the loose clamping blocks to move in the same distance in the direction of approaching or separating from each other. Also provided is a positioning method comprising the steps of: and the adjusting device is adjusted to enable the loose clamping blocks to move towards the directions close to each other, and the loose clamping blocks apply thrust to the workpiece in the moving process, so that the position of the workpiece is adjusted. The positioning mechanism and the positioning method can accurately find the center of the workpiece, are not influenced by the external dimension and tolerance of the workpiece, and realize the accurate positioning of the workpiece, thereby improving the machining precision of products and ensuring the quality of the products.
Description
Technical Field
The invention relates to the technical field of mechanical auxiliary equipment, in particular to a positioning mechanism and a positioning method.
Background
In the mechanical and electronic industries, some workpieces require positioning mechanisms for positioning to achieve precise machining of the workpieces. At present, the positioning mechanisms in the prior art are also various, the traditional positioning mechanisms cannot accurately position the workpiece in terms of positioning precision, a plurality of positioning mechanisms are fixing devices and cannot be adjusted, the workpiece can be positioned only in a fixed size, once the size of the workpiece exceeds the fixed size range of the workpiece, the workpiece cannot be positioned, the positioning mechanism brings certain difficulty to the positioning work of the workpiece, an operator needs to correct the workpiece according to experience, the use is inconvenient, the detection cost is high, the working efficiency is greatly reduced, and the quality and the precision of a product cannot be ensured.
Disclosure of Invention
Based on the above, the invention provides the positioning mechanism and the positioning method, which can accurately find the center of the workpiece, are not influenced by the external dimension and tolerance of the workpiece, and realize the accurate positioning of the workpiece, thereby improving the processing precision of the product and ensuring the quality of the product.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a positioning mechanism comprises a fixed plate, a clamping device and a positioning device, wherein the clamping device and the positioning device are arranged on the fixed plate;
the clamping device is used for clamping a workpiece to be positioned;
the positioning device is used for adjusting the position of the clamped workpiece so that the center of the workpiece is consistent with the center of the positioning device; the positioning device comprises an adjusting device and a plurality of loose clamping blocks fixedly connected with the adjusting device, and the adjusting device can drive the loose clamping blocks to move in the same distance in the direction of approaching or separating from each other.
The technical scheme is further improved as follows:
the clamping device and the adjusting device are respectively positioned on two opposite side surfaces of the fixed plate.
The clamping device comprises a connecting plate and a mounting plate, wherein the connecting plate is fixedly connected with the fixing plate and the mounting plate respectively, and the projection range of the mounting plate on the fixing plate is positioned in the projection range of the connecting plate on the fixing plate; the mounting plate is provided with a sucker device which is used for fixing the workpiece.
The adjusting device comprises a transmission device and a driving device for driving the transmission device.
The transmission device comprises a gear shaft arranged at the center of the fixed plate, two X-axis transmission plates which are respectively connected with the gear shaft in a transmission way and can move towards or away from each other through the transmission of the gear shaft, and two Y-axis transmission plates which are respectively connected with the gear shaft in a transmission way and can move towards or away from each other through the transmission of the gear shaft; the X-axis transmission plate and the Y-axis transmission plate are mutually perpendicular.
The X-axis transmission plate and the Y-axis transmission plate are respectively and fixedly connected with the loose clamping blocks, the fixed plate is provided with limiting holes, one end of each loose clamping block is fixedly connected with the X-axis transmission plate or the Y-axis transmission plate, and the other end of each loose clamping block penetrates through each limiting hole; the X-axis transmission plate and the Y-axis transmission plate can drive the loose clamping blocks to move in the range of the limiting holes, and the loose clamping blocks are contacted with the workpiece and push the workpiece when moving, so that the position of the workpiece is adjusted.
The X-axis transmission plate and the Y-axis transmission plate are in sliding connection with the fixed plate.
The driving device comprises an air cylinder, a mounting part and a driving sliding block, wherein the air cylinder is fixedly connected with the mounting part, and the mounting part is fixed at the end part of the fixing plate and corresponds to the position of the X-axis transmission plate; the mounting part is provided with a chute, and the driving sliding block is arranged in the chute and fixedly connected with a piston rod of the air cylinder; the driving sliding block is provided with a connecting hole, the position of the connecting hole is matched with the position of a loose clamping block of the corresponding X-axis transmission plate, and the loose clamping block is positioned in the connecting hole; the driving device drives the loose clamping blocks to move through the driving sliding blocks, so that the driving device is driven to drive, and the position of the workpiece is adjusted.
A plurality of fixing pins are fixedly arranged on the fixing plates around the connecting plate, and the fixing pins are arranged protruding out of the surface of the fixing plate.
The invention also provides a positioning method for the positioning mechanism, which comprises the following steps:
adjusting the adjusting device to enable the loose clamping blocks to move away from each other;
clamping a workpiece to be positioned on the clamping device;
and the adjusting device is adjusted to enable the loose clamping blocks to move the same distance in the direction of approaching each other, the loose clamping blocks are contacted with the workpiece in the moving process and apply thrust to the workpiece, so that the position of the workpiece is adjusted, and the center of the workpiece is consistent with the center of the positioning device.
According to the technical scheme, the workpiece to be positioned is clamped by the clamping device, the clamped workpiece is subjected to position adjustment by the positioning device, when the loose clamping blocks are close to each other, thrust force can be generated on the workpiece, the loose clamping blocks move by the same distance when being close to each other, so that the moving distances of the workpiece in all directions are the same, the center of the workpiece is consistent with the center of the positioning device, and the purpose of accurate positioning is achieved. The positioning mechanism disclosed by the invention is simple in structure, convenient to use, accurate in positioning and free from the influence of the external dimension of a workpiece. When the overall dimension of the workpiece is larger, the loose clamping blocks can be adjusted to move in the directions away from each other, so that the workpiece enters the adjusting range of the loose clamping blocks, and the workpiece can be pushed to move towards the center of the positioning device by adjusting the movement of the loose clamping blocks in the directions close to each other no matter the overall dimension of the workpiece, so that the accurate positioning of the workpiece is realized. The positioning mechanism has a wider application range, can be matched with a laser engraving device and is used for positioning during laser engraving processing; the device can also be matched with a CNC processing device for positioning during CNC processing; the positioning device can also be matched with an assembly jig to be used as a positioning mechanism of the jig. The positioning method is simple and convenient, is suitable for the positioning mechanism, and can realize accurate positioning of the workpiece.
Drawings
Fig. 1 is a schematic structural view of a positioning device side of a positioning mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a clamping device side of a positioning mechanism according to an embodiment of the present invention.
Fig. 3 is a front view schematically illustrating a positioning device side of a positioning mechanism according to an embodiment of the present invention.
Fig. 4 is a front view schematically illustrating a clamping device side of a positioning mechanism according to an embodiment of the present invention.
Fig. 5 is an exploded view of a clamping device for a positioning mechanism according to an embodiment of the present invention.
Fig. 6 is an exploded view of a positioning device of a positioning mechanism according to an embodiment of the invention.
Fig. 7 is an exploded view of a driving device of a positioning mechanism according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a workpiece to be positioned according to an embodiment of the present invention.
The meaning of the reference numerals in the drawings are:
1-a fixing plate; 2-positioning means; 3-clamping devices; 4-a workpiece; 11-Y axis limiting holes; a 12-X axis limiting hole; 21-a drive device; a 22-Y axis loose clamping block; 23-gear shaft; 24-Y axis connecting plates; 25-X axis transmission plate body; 26-X axis loose clamp blocks; 27-Y axis transmission plate body; 31-fixing pins; 32-mounting plates; 33-connecting plates; 34-suction cup means; 35-through holes; 211-cylinder; 212-a mounting portion; 213-drive slide; 241-Y axis loose clamp block mounting holes; 242-Y axis connecting plate slide block; 243-Y axis connecting plate sliding rails; 251-X axis rack; 252-X axis loose clamp block mounting holes; 253-X axis rack grooves; 254-X axis slide block; 255-X axis slide rail; 271-Y axis racks; 272-Y axis transmission plate slide block; 273-Y axis drive plate slide rail; 274-Y axis rack slot; 2111-piston rod; 2121-sliding grooves; 2131-attachment holes.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended 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 "fixed 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.
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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 to 7 are schematic structural views of a positioning mechanism according to the present invention.
As shown in fig. 8, a schematic structural diagram of the workpiece 4 to be positioned in the present embodiment is shown.
The clamping device 3 and the adjusting device are respectively positioned on two opposite side surfaces of the fixed plate 1.
As shown in fig. 2, 4 and 5, the clamping device 3 is configured to clamp a workpiece 4 to be positioned, and includes a connecting plate 33 and a mounting plate 32, where the connecting plate 33 is located between the mounting plate 32 and the fixing plate 1 and is fixedly connected with the fixing plate 1 and the mounting plate 32, and a projection range of the mounting plate 32 on the fixing plate 1 is located in a projection range of the connecting plate 33 on the fixing plate 1, that is, an outer edge of the mounting plate 32 is located in an outer edge of the connecting plate 33. The connecting plate 33 is provided with a plurality of sucker mounting holes near four corners and the middle, the positions of the mounting plate 32 corresponding to the sucker mounting holes are provided with through holes 35, sucker devices 34 are arranged in the sucker mounting holes, the sucker devices 34 penetrate through the through holes 35 and protrude out of the mounting plate 32, and the sucker devices 34 comprise suckers for fixing the workpiece 4. The outline of the mounting plate 32 is smaller than that of the connecting plate 33, so that a certain space can be reserved between the workpiece 4 and the connecting plate 33, and a manipulator or a man can conveniently take the workpiece 4 when the workpiece 4 fixed on the sucker device 34 needs to be taken down.
As shown in fig. 1, 3 and 5, the positioning device 2 is used for adjusting the position of the clamped workpiece 4 so that the center of the workpiece 4 coincides with the center of the positioning device 2; the positioning device 2 comprises an adjusting device and a plurality of loose clamping blocks fixedly connected with the adjusting device, and the adjusting device can drive the loose clamping blocks to move in the directions approaching to each other or moving away from each other by the same distance.
The adjusting means comprise transmission means and drive means 21 for driving the transmission means.
The transmission device comprises a gear shaft 23 arranged at the center of the fixed plate 1, two X-axis transmission plates which are respectively connected with the gear shaft 23 in a transmission way and can move towards or away from each other through the transmission of the gear shaft 23, and two Y-axis transmission plates which are respectively connected with the gear shaft 23 in a transmission way and can move towards or away from each other through the transmission of the gear shaft 23; the X-axis transmission plate and the Y-axis transmission plate are mutually perpendicular. The gear shaft 23 includes an upper layer gear and a lower layer gear, the upper layer gear and the lower layer gear are integrally formed or fixedly connected with the gear shaft 23, and the gear teeth of the upper layer gear and the lower layer gear are the same in size and position.
As shown in FIG. 6, the X-axis transmission plate is in transmission connection with the lower layer gear, and the Y-axis transmission plate is in transmission connection with the upper layer gear. The motion direction of the X-axis transmission plate is parallel to the long side of the fixed plate 1, and the motion direction of the Y-axis transmission plate is parallel to the short side of the fixed plate 1. The X-axis transmission plate comprises an X-axis transmission plate body 25, an X-axis rack groove 253 is formed in the front end of the X-axis transmission plate body 25 and close to the gear shaft 23, an X-axis rack 251 is detachably connected in the X-axis rack groove 253, and the X-axis rack 251 is in transmission connection with the lower layer gear. The one end that X axle drive plate body 25 kept away from gear shaft 23 is equipped with the loose clamp splice mounting hole 252 of X axle, the loose clamp splice 26 of X axle is fixedly connected with in the loose clamp splice mounting hole 252 of X axle, fixed plate 1 with the loose clamp splice 26 of X axle corresponds the position and is equipped with the spacing hole 12 of X axle, loose clamp splice 26 of X axle one end with X axle drive plate body 25 fixed connection, the other end passes the spacing hole 12 of X axle, and protruding in mounting panel 32 sets up. An X-axis sliding rail 255 is arranged on the fixed plate 1 corresponding to the position of the X-axis transmission plate body 25, an X-axis sliding block 254 is fixedly connected to the surface of the X-axis transmission plate body 25, which is close to one side of the fixed plate 1, the X-axis sliding block 254 is slidably connected with the X-axis sliding rail 255, and the X-axis transmission plate can slide on the X-axis sliding rail 255 through the X-axis sliding block 254.
The Y-axis transmission plate comprises a Y-axis transmission plate body 27, a Y-axis rack groove 274 is formed in the front end of the Y-axis transmission plate body 27, close to the gear shaft 23, a Y-axis rack 271 is detachably connected in the Y-axis rack groove 274, and the Y-axis rack 271 is in transmission connection with the upper layer gear. The Y-axis transmission plate body 27 is far away from one end of the gear shaft 23 and is fixedly connected with a Y-axis connection plate 24, the length direction of the Y-axis connection plate 24 is parallel to the long side of the fixed plate 1, and the Y-axis transmission plate body 27 is symmetrically arranged on two sides. The two ends of the Y-axis connecting plate 24 in the length direction are respectively provided with a Y-axis loose clamping block mounting hole 241, a Y-axis loose clamping block 22 is fixedly connected in the Y-axis loose clamping block mounting hole 241, a Y-axis limiting hole 11 is arranged at the position of the fixing plate 1 corresponding to the Y-axis loose clamping block 22, one end of the Y-axis loose clamping block 22 is fixedly connected with the Y-axis connecting plate 24, and the other end of the Y-axis loose clamping block passes through the Y-axis limiting hole 11 and protrudes out of the mounting plate 32. The Y-axis transmission plate slide rail 273 is arranged on the fixed plate 1 corresponding to the position of the Y-axis transmission plate body 27, the Y-axis transmission plate body 27 is fixedly connected with the Y-axis transmission plate slide block 272 on the surface of one side of the fixed plate 1, the Y-axis transmission plate slide block 272 is in sliding connection with the Y-axis transmission plate slide rail 273, and the Y-axis transmission plate can slide along the Y-axis transmission plate slide rail 273 through the Y-axis transmission plate slide block 272. The fixed plates 1 corresponding to the two ends of the length of the Y-axis connecting plate 24 are respectively provided with a Y-axis connecting plate slide rail 243, the surfaces of the Y-axis connecting plate 24, which are close to one side of the fixed plates 1, are respectively correspondingly provided with a Y-axis connecting plate slide block 242, the Y-axis connecting plate slide block 242 is in sliding connection with the Y-axis connecting plate slide rail 243, and the Y-axis connecting plate 24 can slide along the Y-axis connecting plate slide rail 243 through the Y-axis connecting plate slide block 242.
As shown in fig. 7, the driving device 21 is disposed on the fixing plate 1 of the X-axis transmission plate at an end far away from the gear shaft 23, and includes a cylinder 211, a mounting portion 212 and a driving slider 213, wherein the cylinder 211 is fixedly connected with the mounting portion 212, and the mounting portion 212 is fixed at an end of the fixing plate 1. The mounting portion 212 is provided with a sliding groove 2121, and the driving slider 213 is disposed in the sliding groove 2121 and fixedly connected with a piston rod 2111 of the air cylinder 211; the driving slide block 213 is provided with a connecting hole 2131, the position of the connecting hole 2131 is matched with the position of the corresponding X-axis loose clamp block 26, and the X-axis loose clamp block 26 is positioned in the connecting hole 2131; the driving device 21 drives the loose clamping blocks to move through the driving sliding blocks 213, so that the transmission device is driven to transmit, and the position of the workpiece 4 is adjusted. The driving device can be any other structure capable of driving the X-axis transmission plate, and can be a motor or manual operation and the like.
Four groups of fixing pins 31 are fixedly arranged on the surface of the fixing plate 1 near the four vertex angles of the connecting plate 33, the number of each group of fixing pins 31 is two, more fixing pins can be arranged, and more groups of fixing pins 31 can be arranged according to the requirement. The fixing pins 31 are protruded out of the surface of the fixing plate 1, and four groups of fixing pins 31 are used for playing a certain limiting role on the clamped workpiece 4.
The positioning method of the embodiment comprises the following steps:
first, the driving device 21 is closed, the piston rod 2111 of the driving device 21 is retracted, and drives the X-axis driving plate to slide along the X-axis sliding rail 255 in a direction away from each other, and the Y-axis driving plate slides along the Y-axis driving plate sliding rail 273 and drives the Y-axis connecting plate 24 to slide along the Y-axis connecting plate sliding rail 243 under the action of gear transmission, so as to drive the X-axis loose clamping block 26 and the Y-axis loose clamping block 22 to move in a direction away from each other.
Then, the workpiece 4 to be positioned is clamped on the clamping device 3, and the clamping is not limited by the size of the workpiece 4, so that the clamping can be easily performed even if the workpiece 4 is large.
After the workpiece 4 is clamped, the driving device 21 is started, a piston rod 2111 of the driving device 21 extends out, meanwhile, an X-axis transmission plate is driven to slide along an X-axis sliding rail 255 towards a direction approaching to each other, a Y-axis transmission plate slides along a Y-axis transmission plate sliding rail 273 under the action of gear transmission, and a Y-axis connection plate 24 is driven to slide along a Y-axis connection plate sliding rail 243, so that an X-axis loose clamping block 26 and a Y-axis loose clamping block 22 are driven to move towards a direction approaching to each other, in the moving process of the X-axis loose clamping block 26 and the Y-axis loose clamping block 22, the workpiece 4 is contacted, thrust is generated on the workpiece 4, so that the workpiece 4 is close to the center of the positioning device 2, and finally, after all the X-axis loose clamping blocks 26 and the Y-axis loose clamping blocks 22 are contacted with the workpiece 4, the workpiece 4 is positioned in place, and the center of the workpiece 4 is kept consistent with the center of the positioning device 2.
After the workpiece 4 is positioned in place, the working procedures such as subsequent processing and the like can be performed, and the accurate positioning of the workpiece 4 provides a guarantee for the production of the subsequent working procedures.
The positioning mechanism disclosed by the invention is simple in structure, convenient to use, accurate in positioning and free from the influence of the external dimension of a workpiece. When the overall dimension of the workpiece is larger, the loose clamping blocks can be adjusted to move in the directions away from each other so that the workpiece enters the adjusting range of the loose clamping blocks, and the workpiece can be pushed to move towards the center of the positioning device 2 by adjusting the movement of the loose clamping blocks in the directions close to each other no matter the overall dimension of the workpiece, so that the accurate positioning of the workpiece is realized. The traditional positioning mechanism cannot be adjusted, the application range is narrow, the workpiece cannot be accurately positioned, the positioning precision is low, the efficiency is low, the production of the normal procedure is seriously affected, the quality of a product cannot be ensured, and the production cost of the product is overhigh.
The positioning mechanism has a wider application range, can be matched with a laser engraving device and is used for positioning during laser engraving processing; the device can also be matched with a CNC processing device for positioning during CNC processing; the positioning device can also be matched with an assembly jig to be used as a positioning mechanism of the jig. The positioning method is simple and convenient, is suitable for the positioning mechanism, and can realize accurate positioning of the workpiece.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A positioning mechanism, characterized in that: the device comprises a fixed plate, a clamping device and a positioning device, wherein the clamping device and the positioning device are arranged on the fixed plate;
the clamping device is used for clamping a workpiece to be positioned;
the positioning device is used for adjusting the position of the clamped workpiece so that the center of the workpiece is consistent with the center of the positioning device; the positioning device comprises an adjusting device and a plurality of loose clamping blocks fixedly connected with the adjusting device, and the adjusting device can drive the loose clamping blocks to move the same distance in the direction of approaching or separating from each other;
wherein the adjusting device comprises a transmission device and a driving device for driving the transmission device;
the transmission device comprises a gear shaft arranged at the center of the fixed plate, two X-axis transmission plates which are respectively connected with the gear shaft in a transmission way and can move towards or away from each other through the transmission of the gear shaft, and two Y-axis transmission plates which are respectively connected with the gear shaft in a transmission way and can move towards or away from each other through the transmission of the gear shaft; the X-axis transmission plate and the Y-axis transmission plate are mutually perpendicular;
the gear shaft comprises an upper layer of gears and a lower layer of gears, and the upper layer of gears and the lower layer of gears are integrally formed or fixedly connected with the gear shaft; the X-axis transmission plate is in transmission connection with the lower layer gear, and the Y-axis transmission plate is in transmission connection with the upper layer gear.
2. The positioning mechanism of claim 1, wherein: the clamping device and the adjusting device are respectively positioned on two opposite side surfaces of the fixed plate.
3. The positioning mechanism according to claim 1 or 2, characterized in that: the clamping device comprises a connecting plate and a mounting plate, wherein the connecting plate is fixedly connected with the fixing plate and the mounting plate respectively, and the projection range of the mounting plate on the fixing plate is positioned in the projection range of the connecting plate on the fixing plate; the mounting plate is provided with a sucker device which is used for fixing the workpiece.
4. The positioning mechanism of claim 1, wherein: the X-axis transmission plate and the Y-axis transmission plate are respectively and fixedly connected with the loose clamping blocks, the fixed plate is provided with limiting holes, one end of each loose clamping block is fixedly connected with the X-axis transmission plate or the Y-axis transmission plate, and the other end of each loose clamping block penetrates through each limiting hole; the X-axis transmission plate and the Y-axis transmission plate can drive the loose clamping blocks to move in the range of the limiting holes, and the loose clamping blocks are contacted with the workpiece and push the workpiece when moving, so that the position of the workpiece is adjusted.
5. The positioning mechanism of claim 1, wherein: the X-axis transmission plate and the Y-axis transmission plate are in sliding connection with the fixed plate.
6. The positioning mechanism of claim 1, wherein: the driving device comprises an air cylinder, a mounting part and a driving sliding block, wherein the air cylinder is fixedly connected with the mounting part, and the mounting part is fixed at the end part of the fixing plate and corresponds to the position of the X-axis transmission plate; the mounting part is provided with a chute, and the driving sliding block is arranged in the chute and fixedly connected with a piston rod of the air cylinder; the driving sliding block is provided with a connecting hole, the position of the connecting hole is matched with the position of a loose clamping block of the corresponding X-axis transmission plate, and the loose clamping block is positioned in the connecting hole; the driving device drives the loose clamping blocks to move through the driving sliding blocks, so that the driving device is driven to drive, and the position of the workpiece is adjusted.
7. A positioning mechanism as claimed in claim 3, wherein: a plurality of fixing pins are fixedly arranged on the fixing plates around the connecting plate, and the fixing pins are arranged protruding out of the surface of the fixing plate.
8. A positioning method for a positioning mechanism according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
adjusting the adjusting device to enable the loose clamping blocks to move away from each other;
clamping a workpiece to be positioned on the clamping device;
and the adjusting device is adjusted to enable the loose clamping blocks to move the same distance in the direction of approaching each other, the loose clamping blocks are contacted with the workpiece in the moving process and apply thrust to the workpiece, so that the position of the workpiece is adjusted, and the center of the workpiece is consistent with the center of the positioning device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257659.5A CN113070623B (en) | 2021-03-09 | 2021-03-09 | Positioning mechanism and positioning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257659.5A CN113070623B (en) | 2021-03-09 | 2021-03-09 | Positioning mechanism and positioning method |
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| CN113070623A CN113070623A (en) | 2021-07-06 |
| CN113070623B true CN113070623B (en) | 2023-04-28 |
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| CN114131210A (en) * | 2021-11-02 | 2022-03-04 | 广东长盈精密技术有限公司 | Automatic transcoding engraving device |
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| KR101738747B1 (en) * | 2015-03-27 | 2017-05-22 | 박찬문 | Position adjustable for easy clamping jig |
| CN204747757U (en) * | 2015-06-26 | 2015-11-11 | 德韧干巷汽车系统（上海）有限公司 | Irregular spare part welding jig |
| CN108381433A (en) * | 2018-05-30 | 2018-08-10 | 珠海格力智能装备有限公司 | Centering machine |
| CN110561155A (en) * | 2019-09-30 | 2019-12-13 | 吴善旺 | Positioning assembly of engraving and milling machine |
| CN112059659A (en) * | 2020-08-18 | 2020-12-11 | 青岛磐德凯锐设备制造有限公司 | Rotary workbench |
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