CN111503127A - Small-space vacuum precision positioning mechanism - Google Patents
Small-space vacuum precision positioning mechanism Download PDFInfo
- Publication number
- CN111503127A CN111503127A CN202010377154.8A CN202010377154A CN111503127A CN 111503127 A CN111503127 A CN 111503127A CN 202010377154 A CN202010377154 A CN 202010377154A CN 111503127 A CN111503127 A CN 111503127A
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- suction head
- negative pressure
- precision positioning
- small
- positioning mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000001179 sorption measurement Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 10
- 230000007547 defect Effects 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 16
- 238000005457 optimization Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B47/00—Suction cups for attaching purposes; Equivalent means using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/005—Vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a small space vacuum precision positioning mechanism, which comprises a plurality of adsorption units, wherein each adsorption unit comprises a first mounting frame, a linear guide rail, a sliding block, a brake device, a mounting plate, a second mounting frame and a suction head mechanism, the linear guide rail is arranged on the first mounting frame, the sliding block is arranged on the linear guide rail in a sliding way, one side of the linear guide rail is provided with a brake device for braking the sliding block, the mounting plate is fixed on the sliding block, a reset mechanism is arranged between the mounting plate and the first mounting frame, the second mounting frame is fixed on the side wall of the mounting plate, which is far away from the sliding block, the suction head mechanism is arranged on the second mounting frame, the suction head mechanism comprises a negative pressure suction head and an O-shaped ring, the adsorption end of the negative pressure suction head is provided with a convex platform, the O-shaped ring is sleeved on the outer side of the convex platform, the height of the O-shaped ring is more than or equal, the defects of poor position precision and high elasticity of the standard sucker are overcome.
Description
Technical Field
The invention relates to the technical field of positioning devices, in particular to a small-space vacuum precision positioning mechanism.
Background
With the continuous improvement of living standard, automobiles become main transportation tools of people, the quantity of automobiles kept in China is about 2.6 hundred million, and the quantity of automobiles kept in China still has great growth space with the gradual advance of urbanization. The automobile industry is competitive, the appearance quality is one of the factors influencing whether a consumer purchases an automobile, a high-quality appearance automobile is often favored by the consumer, and the appearance quality of an automobile dashboard is the focus of attention of the consumer.
Automobile instrument panel assembles to the automobile body, and in traditional rubber coating assembling process, the assembly of glass and product can't realize accurate location, and can't realize arbitrary height adjustment's adjustment in the twinkling of an eye and keep current gesture, does not have suitable sucking disc to the aperture on the product in addition and corresponds with it, causes inconvenience for the fitting work, and assembly efficiency is low, and the assembly precision is not high moreover.
Disclosure of Invention
The invention aims to provide a small-space vacuum precision positioning mechanism, which utilizes a vacuum negative pressure adsorption mode, replaces a sucker with an O-shaped ring, realizes four-point independent floating and keeping, does not leave any trace on the surface of glass, can prevent static electricity, overcomes the condition that a small space does not have a proper standard vacuum sucker, and overcomes the defects of poor position precision and high elasticity of the standard sucker.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a little space vacuum precision positioning mechanism, includes a plurality of absorption units, it includes first mounting bracket, linear guide, slider, contracting brake ware, mounting panel, second mounting bracket and suction head mechanism to adsorb the unit, linear guide sets up on first mounting bracket, and what can slide on this linear guide is equipped with the slider, and its one side is equipped with the contracting brake ware that is used for the slider braking, on the mounting panel was fixed in the slider, be equipped with canceling release mechanical system between its and the first mounting bracket, was fixed with the second mounting bracket on keeping away from a lateral wall of slider on this mounting panel, suction head mechanism sets up on the second mounting bracket, and this suction head mechanism includes negative pressure suction head and O type circle, the absorption end of negative pressure is equipped with the bellmouth platform, the outside of bellmouth platform is located to O type circle cover, and its height that highly is greater than or equal to the bellmouth platform is established to this O type circle.
As a further optimization, the periphery of the upper end of the flange platform is provided with an outward flange, and one side, close to the flange platform, of the O-shaped ring is embedded in the outward flange.
As a further optimization, the reset mechanism comprises a first screw rod, a second screw rod and a tension spring, the first screw rod is arranged on the first mounting frame, the second screw rod is arranged on the mounting plate, the first screw rod is positioned above the second screw rod in an inclined manner, and the tension spring is arranged between the first screw rod and the second screw rod.
As further optimization, one side of keeping away from the suction head mechanism on the mounting panel is equipped with the third mounting bracket, be equipped with on the third mounting bracket and pass its body back butt stop screw on linear guide.
As a further optimization, the negative pressure suction head is made of steel.
As a further optimization, the upper end face of the boss and the flanging are both made of mirror polishing materials.
As a further optimization, the negative pressure suction head is fixed on the second mounting frame through a locking bolt, a negative pressure interface is arranged on one side, away from the convex opening platform, of the negative pressure suction head, and the negative pressure interface is located above the second mounting frame.
As a further optimization, the middle part of the outer wall of the negative pressure suction head is provided with a limiting table, and the limiting table is positioned above the negative pressure interface.
As a further optimization, the number of the adsorption units is four, and the four adsorption units are arranged in pairwise symmetry.
Compared with the prior art, the invention has the following beneficial effects:
1. the situation that a small space is not provided with a proper standard vacuum chuck is overcome, and the defects of poor position precision and high elasticity of the standard chuck are overcome;
2. the vacuum negative pressure adsorption mode is utilized, the sucker is replaced by the O-shaped ring, four-point independent floating and keeping are realized, no trace is left on the surface of the glass, and the glass can be prevented from static electricity;
3. utilize the slide rail to realize sliding from top to bottom, utilize the band-type brake of taking off gas at any time of band-type brake ware simultaneously, adsorb assembly back band-type brake and pin and guarantee its stability, the bottom is furnished with stop screw, can realize the spacing of the upper limit of extension spring.
Drawings
FIG. 1 is a block diagram of an adsorbent product of the present invention.
Fig. 2 is a side view of fig. 1.
FIG. 3 is a bottom view structural diagram of an absorbent product of the present invention.
FIG. 4 is a structural view of an adsorption unit of the present invention.
Fig. 5 is a structural view of the suction head mechanism of the present invention mounted on a second mounting frame.
Fig. 6 is an enlarged view of a portion a in fig. 5.
In the figure, 10. adsorption unit; 11. a first mounting bracket; 12. a linear guide rail; 13. a slider; 14. mounting a plate; 15. a second mounting bracket; 16. a brake contracting device; 17. a suction head mechanism; 18. a third mounting bracket; 19. a limit screw; 171. a negative pressure suction head; 172, an O-ring; 1711. a boss; 1712. flanging; 1713. a negative pressure interface; 1714. a limiting table; 2. a reset mechanism; 21. a first screw; 22. a second screw; 23. a tension spring; 101. producing a product; 102. and (3) glass.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 6, a small space vacuum precision positioning mechanism comprises a plurality of adsorption units 10, wherein each adsorption unit 10 comprises a first mounting frame 11, a linear guide rail 12, a slider 13, a band brake 16, a mounting plate 14, a second mounting frame 15 and a suction head mechanism 17, the linear guide rail 12 is arranged on the first mounting frame 11, the slider 13 is arranged on the linear guide rail 12 in a sliding manner, one side of the brake is provided with a band-type brake 16 for braking the sliding block 13, the mounting plate 14 is fixed on the sliding block 13, a reset mechanism 2 is arranged between the first mounting frame 11 and the second mounting frame 15, a side wall of the mounting plate 14 far away from the slide block 13 is fixed with the second mounting frame 15, a sucker mechanism 17 is arranged on the second mounting frame 15, the suction head mechanism 17 comprises a negative pressure suction head 171 and an O-shaped ring 172, a convex platform 1711 is arranged at the suction end of the negative pressure suction head 171, the O-shaped ring 172 is sleeved outside the convex platform 1711, the O-ring 172 is deformed to a height greater than or equal to the height of the lip 1711.
The number of the adsorption units 10 is four, the four adsorption units 10 are arranged in a pairwise symmetrical manner and are arranged at the output end of an external moving mechanism (such as a mechanical arm) together, the moved target product is a combination of a product 101 and glass 102, wherein the glass 102 is embedded in the product 101, the lower end of the product 101 is provided with a through hole, and suction head mechanisms on the four adsorption units can be independently connected with different vacuum generators to form an independent adsorption system.
When the sucker mechanism bears the weight of a product and glass or an external moving mechanism enables the sucker mechanism to penetrate through a product through hole to be pressed on the glass, as the mounting plate slides on the linear guide rail along with the sliding block, floating contact can be achieved, namely elastic support is achieved, the negative pressure sucker can partially penetrate through the through hole, the boss of the negative pressure sucker abuts against the surface of the glass to carry out negative pressure adsorption, as the O-shaped ring is arranged on the outer side of the boss and abuts against the surface of the glass, and the height of the O-shaped ring after extrusion deformation is larger than or equal to that of the boss, the negative pressure sucker can be formed to be airtight, air tightness is guaranteed, negative pressure adsorption is achieved, the traditional vacuum sucker with a large cross section is replaced, and the vacuum sucker can be suitable for positioning adsorption in; after the adsorption occurs, the band-type brake acts to brake and lock the sliding block, so that rigid support is realized, and the movement can be conveniently carried out.
The negative pressure suction head 171 is made of steel, so that the supporting strength and the service life are improved.
The upper end face of the convex port platform 1711 and the outer flanging 1712 are made of mirror polishing materials, so that the negative pressure adsorption end is prevented from generating scratches when being in surface contact with a glass material, and the product quality is prevented from being influenced.
The negative pressure suction head 171 is fixed on the second mounting frame 15 through a locking bolt, a negative pressure port 1713 is arranged on one side of the negative pressure suction head, which is far away from the convex platform 1711, and the negative pressure port 1713 is positioned above the second mounting frame 15.
The middle part of the outer wall of the negative pressure suction head 171 is provided with a limit platform 1714, the limit platform 1714 is positioned above the negative pressure port 1713, as mentioned above, the part of the negative pressure suction head above the limit platform passes through the through hole of the product 101 and then reaches the surface of the glass to perform negative pressure adsorption, and the limit platform is abutted against the lower end of the product 101 to position and support the product.
Further, for through holes with different specifications on a product, matching can be performed by adjusting the outer diameter of the corresponding negative pressure suction head, specifically, the outer diameter of the negative pressure suction head positioned at the upper part of the limiting table can be adjusted, so that the negative pressure suction head can reach the surface of the glass through the through holes.
The peripheral side of the upper end of the boss 1711 is provided with an outward flange 1712, one side of the O-shaped ring 172 close to the boss 1711 is embedded in the outward flange 1712, and the outward flange has double functions, so that the O-shaped ring can be limited and prevented from being separated from the boss; on the other hand, the adsorption area of the adsorption end can be increased, and the adsorption strength of the glass can be improved.
The resetting mechanism 2 comprises a first screw rod 21, a second screw rod 22 and a tension spring 23, the first screw rod 21 is arranged on the first mounting frame 11, the second screw rod 22 is arranged on the mounting plate 14, the first screw rod 21 is positioned above the second screw rod 22 in an inclined mode, the tension spring 23 is arranged between the first screw rod and the second screw rod, after the adsorption unit finishes moving and taking actions, the brake device stops acting, the tension spring needs to restore the compression state, two ends of the tension spring need to move in opposite directions, at the moment, the mounting plate moves upwards on the linear guide rail through the sliding plate under the action of the restoring force of the tension spring, and resetting is finished.
The third mounting frame 18 is arranged on one side, far away from the suction head mechanism 17, of the mounting plate 14, the limiting screw 19 which can penetrate through the third mounting frame 18 and abuts against the lower end of the linear guide rail 12 is arranged on the third mounting frame 18, the distance between the third mounting frame and the linear guide rail is adjusted by rotating the limiting screw, the purpose of adjusting the initial state of the tension spring can be achieved, and then the initial position of the mounting plate is adjusted.
The invention overcomes the condition that a small space does not have a proper standard vacuum chuck, and overcomes the defects of poor position precision and high elasticity of the standard chuck; the vacuum negative pressure adsorption mode is utilized, the sucker is replaced by the O-shaped ring, four-point independent floating and keeping are achieved, no trace is left on the surface of the glass, and static electricity can be prevented.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The small-space vacuum precision positioning mechanism is characterized by comprising a plurality of adsorption units (10), wherein each adsorption unit (10) comprises a first installation frame (11), a linear guide rail (12), a sliding block (13), a brake (16), an installation plate (14), a second installation frame (15) and a suction head mechanism (17), the linear guide rail (12) is arranged on the first installation frame (11), the sliding block (13) is arranged on the linear guide rail (12) in a sliding manner, the brake (16) for braking the sliding block (13) is arranged on one side of the linear guide rail, the installation plate (14) is fixed on the sliding block (13), a reset mechanism (2) is arranged between the installation plate and the first installation frame (11), the second installation frame (15) is fixed on the side wall, far away from the sliding block (13), of the installation plate (14), and the suction head mechanism (17) is arranged on the second installation frame (15), the suction head mechanism (17) comprises a negative pressure suction head (171) and an O-shaped ring (172), wherein a convex opening platform (1711) is arranged at the adsorption end of the negative pressure suction head (171), the O-shaped ring (172) is sleeved on the outer side of the convex opening platform (1711), and the height of the O-shaped ring (172) after deformation is set by the sleeve is larger than or equal to that of the convex opening platform (1711).
2. The small-space vacuum precision positioning mechanism as claimed in claim 1, wherein a flanging (1712) is arranged on the periphery of the upper end of the boss (1711), and one side of the O-ring (172) close to the boss (1711) is embedded in the flanging (1712).
3. The small-space vacuum precision positioning mechanism of claim 1, characterized in that the reset mechanism (2) comprises a first screw (21), a second screw (22) and a tension spring (23), the first screw (21) is arranged on the first mounting frame (11), the second screw (22) is arranged on the mounting plate (14), the first screw (21) is positioned obliquely above the second screw (22), and the tension spring (23) is arranged between the first screw and the second screw.
4. The small-space vacuum precision positioning mechanism according to claim 1, characterized in that a third mounting rack (18) is arranged on one side of the mounting plate (14) far away from the suction head mechanism (17), and a limit screw (19) which can penetrate through the body of the third mounting rack (18) and abut against the linear guide rail (12) is arranged on the third mounting rack (18).
5. The small space vacuum precision positioning mechanism according to claim 2, characterized in that the negative pressure suction head (171) is made of steel.
6. The small-space vacuum precision positioning mechanism according to claim 5, characterized in that the upper end surface of the boss (1711) and the outer flange (1712) are both made of mirror polishing materials.
7. The small-space vacuum precision positioning mechanism as claimed in claim 1, characterized in that the negative pressure suction head (171) is fixed on the second mounting frame (15) through a locking bolt, and a negative pressure port (1713) is arranged on the side of the negative pressure suction head away from the boss (1711), and the negative pressure port (1713) is positioned above the second mounting frame (15).
8. The small-space vacuum precision positioning mechanism according to claim 7, characterized in that a limit table (1714) is arranged in the middle of the outer wall of the negative pressure suction head (171), and the limit table (1714) is located above the negative pressure port (1713).
9. The small space vacuum precision positioning mechanism according to any one of claims 1 to 8, characterized in that the number of the adsorption units (10) is four, and the four adsorption units (10) are arranged in two-to-two symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010377154.8A CN111503127A (en) | 2020-05-07 | 2020-05-07 | Small-space vacuum precision positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010377154.8A CN111503127A (en) | 2020-05-07 | 2020-05-07 | Small-space vacuum precision positioning mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN111503127A true CN111503127A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010377154.8A Pending CN111503127A (en) | 2020-05-07 | 2020-05-07 | Small-space vacuum precision positioning mechanism |
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| Country | Link |
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| CN (1) | CN111503127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284198A (en) * | 2022-10-08 | 2022-11-04 | 尼尔半导体(山东)有限公司 | Fixing device of semiconductor substrate |
-
2020
- 2020-05-07 CN CN202010377154.8A patent/CN111503127A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284198A (en) * | 2022-10-08 | 2022-11-04 | 尼尔半导体(山东)有限公司 | Fixing device of semiconductor substrate |
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