CN213377590U - Pneumatic rotating eccentric positioning device - Google Patents
Pneumatic rotating eccentric positioning device Download PDFInfo
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- CN213377590U CN213377590U CN202020748814.4U CN202020748814U CN213377590U CN 213377590 U CN213377590 U CN 213377590U CN 202020748814 U CN202020748814 U CN 202020748814U CN 213377590 U CN213377590 U CN 213377590U
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Abstract
The utility model discloses a pneumatic rotatory eccentric positioner, use the fixed work piece of gyration die clamping cylinder, gyration die clamping cylinder adopts bolt and position sleeve to link firmly, the position sleeve upside adopts screw and last cutting ferrule section of thick bamboo to link firmly, eccentric shaft lower extreme and piston rod end portion threaded connection, piston rod end portion and eccentric shaft outside cover are equipped with interior cutting ferrule, threaded connection has lock nut on the eccentric shaft of interior cutting ferrule upside, the eccentric shaft upper end is integration round platform form and is equipped with the location head, location head axis of revolution is the setting of eccentric distance e with eccentric shaft axis of revolution, and fix a position head and eccentric shaft upper end and stretch out the cutting ferrule, press from both sides the tight location of work piece on the workstation. The device clamps and fixes the plastic workpiece by utilizing the principle of two-axis eccentricity, eliminates the deformation influence of the plastic workpiece, is suitable for positioning and clamping the plastic workpiece, the non-metal workpiece and the sheet metal workpiece, can correct the deformation of the workpiece while clamping and positioning the plastic workpiece, and improves the production efficiency while meeting the technical requirements.
Description
Technical Field
The utility model relates to a pneumatic rotatory eccentric positioner solves the tight problem of work piece location clamp, belongs to pneumatic fixture frock for work piece location when trades such as car, electron, door and window are scribbled and are annotated joint strip is pressed from both sides tightly.
Background
A workpiece positioning and fixing method in the manufacturing and processing industry mainly adopts mechanical mechanism clamping, cylinder clamping, oil cylinder clamping, electromagnetic chuck clamping, vacuum chuck clamping and the like to fix a workpiece on a workbench; in the machining industry, workpieces are required to be accurately positioned before being machined, the clamping and fixing are reliable, the phenomena of looseness and the like cannot occur, a large clamping force is required for fixing the workpieces, and the first three clamping modes are usually selected; the sealing rubber strip is required to be accurately and reliably positioned when the sealing rubber strip is applied and injected in industries such as automobiles, electronics, doors and windows and the like, large clamping force is not required, and the fixing mode of the electromagnetic chuck and the vacuum chuck is more suitable. For example, a lot of interior plastic workpieces are installed in an automobile cab, the electromagnetic chuck cannot adsorb the plastic workpieces, only the vacuum chuck can be used for adsorbing the plastic workpieces, the plastic workpieces are easy to warp and deform after injection molding, and an adsorbable plane, especially a plastic workpiece with a large area, is difficult to find. The Chinese patent is granted and announced No. CN 208880576U, utility model name "a pneumatic rotatory eccentric positioner" utilizes axle center deviation function, breaks through and solves the automobile body location and loosens the bottleneck, satisfies the flexible assembly butt joint of the integrated one-stop type operation of assembly and different motorcycle type bottom deviation between each position region in the bottom of car. But this utility model is suitable for a car body needs the fixed auttombilism portion operation of great clamping-force in whole car, only satisfies the location, fixed, support, the rotation of automobile body to the bottom of car operation is carried out to the most suitable environment, and work piece location when being not applicable to the working of plastics work piece in the auttombilism room and scribbling notes joint strip. For example, the plastic part workpiece of the inner door panel of the automobile door panel has a large area and a small thickness, is easy to deform after injection molding, and brings certain difficulty for processing of coating and injecting sealing rubber strips. Therefore, there is a great need in the art for a pneumatically actuated rotational eccentric positioning device that facilitates clamping and positioning of plastic workpieces of this type and corrects for the effects of deformation.
Disclosure of Invention
Not enough to prior art exists, the utility model discloses a pneumatic rotatory eccentric positioner uses gyration clamp cylinder, utilizes the eccentric principle of diaxon heart to press from both sides tight fixed working of plastics work piece to and eliminate the deformation influence of working of plastics work piece. The clamping device is suitable for positioning and clamping of plastic part workpieces, non-metal part workpieces and sheet metal part workpieces, deformation of the workpieces can be corrected while clamping and positioning are carried out, and production efficiency is improved while technical requirements are met.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
a pneumatic rotary eccentric positioning device utilizes a rotary clamping cylinder to fix a workpiece and is used for fixing the workpiece of a metal part and a non-metal part. The rotary clamping cylinder is fixedly connected with the positioning sleeve through bolts, so that the end part of the rotary clamping cylinder and the piston rod are sleeved in a cavity of the positioning sleeve, the upper side of the positioning sleeve is fixedly connected with the upper clamping sleeve through screws, the lower end of the eccentric shaft is in threaded connection with the end part of the piston rod, inner clamping sleeves are sleeved on the outer sides of the end part of the piston rod and the eccentric shaft, a locking nut is connected to the eccentric shaft on the upper side of the inner clamping sleeve in a threaded manner, the upper end of the eccentric shaft is provided with a positioning head in an integrated round table shape, the rotary axis of the positioning head and the rotary axis of the eccentric shaft are arranged in an eccentric distance e, and the positioning head and the;
the middle section of the eccentric shaft is respectively provided with a shaft installation notch, and the lower section of the eccentric shaft is also provided with a shaft external thread;
a step through hole is arranged in the inner clamping sleeve, the hole pattern at the upper end of the step through hole is a circular hole, and the hole pattern at the lower end of the step through hole is a square hole;
the left side and the front side of the edge of the upper end of the positioning sleeve are respectively provided with a screw threaded hole;
go up cutting ferrule section of thick bamboo left side and be equipped with the cutting ferrule incision, and cutting ferrule incision width is greater than the first width of location, and cutting ferrule incision height is greater than the first height of location.
The utility model has the advantages that:
the device clamps and fixes the plastic workpiece by utilizing the principle of two-axis eccentricity and eliminates the deformation influence of the plastic workpiece, so that the device is suitable for positioning and clamping the plastic workpiece, the non-metal workpiece and the sheet metal workpiece, is more suitable for the plastic workpiece or the sheet metal workpiece, is similar to the workpiece which has large area, small thickness and easy deformation after injection molding, has small clamping resultant force when clamping and positioning, is not easy to deform, can correct the deformation of the workpiece, is more convenient to place the workpiece, is easier to feed and discharge, and can improve the production efficiency while meeting the technical requirements.
Drawings
Fig. 1 is a schematic structural diagram showing six devices for clamping and fixing a workpiece on a workbench during working.
Fig. 2 is a schematic perspective view of the device.
Fig. 3 is a schematic front view of the device.
Fig. 4 is a left side view of the device.
Fig. 5 is a rear view of the device.
Fig. 6 is a schematic top view of the device.
Fig. 7 is a schematic view of the cross-sectional structure a-a in fig. 3.
FIG. 8 is a schematic view of the positioning head of the apparatus passing through a workpiece via without rotation.
FIG. 9 is a schematic view of the positioning head of the apparatus rotated 180 through a workpiece via.
FIG. 10 is a schematic view of the positioning head of the apparatus rotated 90 through a workpiece via.
The number of the attached drawing in the figure is 1-workpiece, 11-workpiece process hole, 2-workbench, 3-device, 31-rotary clamping cylinder, 311-piston rod, 3111-internal thread hole, 32-positioning sleeve, 321-screw thread hole, 322-bolt through hole, 33-upper clamping sleeve, 331-clamping sleeve notch, 34-eccentric shaft, 341-positioning head, 342-shaft installation notch, 343-shaft external thread, 35-internal clamping sleeve, 36-locking nut and e-eccentric distance.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
It should be noted that the terms "front", "back", "left", "right", "up" and "down" are merely exemplary directions defined for the convenience of describing the present invention, and as shown in fig. 3, the left side direction of the paper surface is "left", the right side direction of the paper surface is "right", the left and right side directions of the paper surface are "transverse", the upper side direction of the paper surface is "up", the lower side direction of the paper surface is "down", the upper and lower side directions of the paper surface are "axial", the front side direction of the paper surface is "front", the rear side direction of the paper surface is "back", and the front and rear side directions of the paper surface are "longitudinal", and it is understood by those skilled in the art that the directions of "front", "back", "left", "right", "up" and "down" may be defined in other ways and also fall within the protection scope of.
As shown in fig. 2 to 7, a pneumatic rotary eccentric positioning device fixes a workpiece 1 by a rotary clamping cylinder 31, and is used for fixing the workpiece 1 of a metal part or a non-metal part. The rotary clamping cylinder 31 is fixedly connected with the positioning sleeve 32 through a bolt through hole 322 by a bolt, so that the end part of the rotary clamping cylinder 31 and the piston rod 311 are sleeved in the cavity of the positioning sleeve 32, the upper side of the positioning sleeve 32 is fixedly connected with the upper clamping sleeve 33 through a screw threaded hole 321 by a screw, the lower end of the eccentric shaft 34 is in threaded connection with the end part of the piston rod 311, the outer side of the end part of the piston rod 311 and the outer side of the eccentric shaft 34 are sleeved with an inner clamping sleeve 35, the eccentric shaft 34 on the upper side of the inner clamping sleeve 35 is in threaded connection with a locking nut 36, the upper end of the eccentric shaft 34 is provided with a positioning head 341 in an integrated circular truncated cone shape, the axial vertical rotation axis of the positioning head 341 and the axial vertical rotation axis of the eccentric shaft 34 are arranged in an eccentric distance e;
the middle section of the eccentric shaft 34 is circumferentially provided with shaft mounting notches 342 at four equal intervals, and the lower section of the eccentric shaft 34 is also provided with shaft external threads 343;
a step through hole is arranged in the inner cutting sleeve 35, the hole pattern at the upper end of the step through hole is a circular hole and is used for sleeving the eccentric shaft 34, and the hole pattern at the lower end of the step through hole is a square hole and is used for sleeving the circumferential square end part of the piston rod 311;
the left side and the front side of the edge of the upper end of the positioning sleeve 32 are respectively provided with a screw threaded hole 321;
the left side of the upper clamping sleeve 33 is provided with a clamping sleeve notch 331, the longitudinal width of the clamping sleeve notch 331 is larger than the transverse width of the positioning head 341, and the axial height of the clamping sleeve notch 331 is larger than the axial height of the positioning head 341.
Further, when the workpiece 1 is an automobile door panel, the automobile door panel usually consists of a metal sheet part workpiece on the outer side and a plastic part workpiece on the inner side, the joint of the metal sheet part workpiece and/or the plastic part workpiece needs to be coated with a double-component polyurethane sealant strip, the coating part is positioned at the edge of the workpiece 1, due to the fact that the metal sheet part workpiece and the plastic part workpiece are thin in thickness and easy to warp and deform, coating is usually carried out along the edge of the workpiece 1, modes of mechanical mechanism clamping, cylinder clamping, oil cylinder clamping and the like are adopted, a pressing block or a clamping block interferes with a coating track, and coating cannot be or cannot be easily achieved. The workpiece 1 is positioned and clamped by the suckers, and the workpiece 1 is large in deformation and large in gap between the sucker, so that the vacuum degree is not easy to improve, the initial adsorption force is insufficient, the intervention is needed, and the efficiency is influenced.
In order to overcome the above problems, referring to fig. 1, 8-10, a method of using a rotary clamping cylinder 31 to drive an integrated eccentric shaft 34 and a positioning head 341 is adopted, initially, a workpiece 1 is placed on a worktable 2, more than 2 devices 3 are arranged on the worktable 2 according to process requirements, for example, fig. 1 shows a state that 6 devices 3 position the workpiece 1.
The piston rod 311 of the rotary clamping cylinder 31 is at the jacking original position, the positioning head 341 is positioned in the cutting sleeve notch 331 of the upper clamping sleeve 33 at the moment, after the workpiece 1 is placed on the workbench 2, the control device ensures that the rotation center of the workpiece process hole 11 at the edge of the workpiece 1 is aligned with the rotation center of the positioning head 341 (the positioning head 341 is arranged in a truncated cone shape so as to be aligned with the rotation center of the workpiece process hole 11), the piston rod 311 of the rotary clamping cylinder 31 drives the positioning head 341 to move upwards, so that the positioning head 341 penetrates through the workpiece process hole 11, the piston rod 311 of the rotary clamping cylinder 31 stops moving, and then the piston rod 311 drives the positioning head 341 to rotate clockwise +180 degrees or anticlockwise-180 degrees.
After the piston rod 311 drives the positioning head 341 to rotate in place, the control device ensures that the piston rod 311 of the rotary clamping cylinder 31 drives the positioning head 341 to move downwards, and the workpiece 1 is in contact with the lower surface of the positioning head 341, so that the workpiece 1 is clamped and fixed on the workbench 2, the deformation influence of the workpiece 1 is eliminated, and the reliability of gluing and sealing of the workpiece 1 is improved. The gluing head carries out gluing operation along the edge of the workpiece 1, after the gluing operation is finished, the piston rod 311 drives the positioning head 341 to move upwards and loosen, the positioning head 341 rotates to the original rotating position, the piston rod 311 drives the positioning head 341 to move downwards to the original moving position, the workpiece 1 is dismounted, and the operation is repeated to carry out the next gluing operation.
Further, the piston rod 311 drives the positioning head 341 to rotate clockwise +90 ° or counterclockwise-90 °, and the clockwise or counterclockwise rotation angle range is determined by the rotary clamping cylinder 31.
Further, the piston rod 311 of the rotary clamping cylinder 31 can be located at the highest jacking position, when the workpiece 1 is placed on the workbench 2, the control device ensures that the rotation center of the workpiece fabrication hole 11 at the edge of the workpiece 1 is aligned with the rotation center of the positioning head 341, so that the workpiece fabrication hole 11 passes through the positioning head 341, and then the piston rod 311 drives the positioning head 341 to rotate clockwise by +180 degrees or counterclockwise by-180 degrees (or clockwise by +90 degrees or counterclockwise by-90 degrees).
Further, the piston rod 311 of the rotary clamping cylinder 31 can also be located at the highest jacking position, the positioning head 341 is located outside the edge profile of the workpiece 1 placed on the workbench 2, when the workpiece 1 is placed, the workpiece 1 can be placed on the workbench 2 along each circular table-shaped bus of the positioning head 341, the control device ensures that the rotation center of the workpiece fabrication hole 11 at the edge of the workpiece 1 is aligned with the rotation center of the positioning head 341, so that the workpiece fabrication hole 11 passes through the positioning head 341, and then the piston rod 311 drives the positioning head 341 to rotate clockwise by +180 degrees or counterclockwise by-180 degrees (or clockwise by +90 degrees or counterclockwise by-90 degrees).
The piston rod 311 of the rotary clamping cylinder 31 drives the positioning head 341 to move downwards, the workpiece 1 is in contact with the lower surface of the positioning head 341, the piston rod 311 of the rotary clamping cylinder 31 stops moving, so that the workpiece 1 is clamped and fixed on the workbench 2, the gluing head performs gluing operation along the edge of the workpiece 1, after the gluing operation is finished, the piston rod 311 drives the positioning head 341 to move upwards and loosen, the positioning head 341 rotates to an original rotating position, the piston rod 311 drives the positioning head 341 to move upwards to an original moving position, the workpiece 1 is unloaded, and the operation is repeated to perform the next gluing operation.
The above embodiments are described in order to facilitate understanding and applying the invention by those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and all the technical solutions of equivalent transformation or equivalent replacement obtained by the technical teaching of the present invention by those skilled in the art fall within the protection scope of the present invention.
Claims (8)
1. A pneumatic rotary eccentric positioning device utilizes a rotary clamping cylinder to fix a workpiece and is used for fixing workpieces of metal parts and non-metal parts; the method is characterized in that: the rotary clamping cylinder is fixedly connected with the positioning sleeve through a bolt, the end part of the rotary clamping cylinder and the piston rod are sleeved in the cavity of the positioning sleeve, the upper side of the positioning sleeve is fixedly connected with the upper clamping sleeve through a screw, the lower end of the eccentric shaft is in threaded connection with the end part of the piston rod, the outer side of the end part of the piston rod and the outer side of the eccentric shaft are sleeved with inner clamping sleeves, a locking nut is in threaded connection with the eccentric shaft on the upper side of the inner clamping sleeve, a positioning head is arranged at the upper end of the eccentric shaft, the rotary axis of the positioning head and the rotary axis of the eccentric shaft are arranged at an eccentric distance e, and the upper ends.
2. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: and the positioning head at the upper end of the eccentric shaft is arranged in an integrated round table shape.
3. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: the middle section of the eccentric shaft is respectively provided with a shaft installation notch, and the lower section of the eccentric shaft is also provided with an external shaft thread.
4. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: the inner clamping sleeve is internally provided with a step through hole, the hole pattern at the upper end of the step through hole is a circular hole, and the hole pattern at the lower end of the step through hole is a square hole.
5. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: and the left side and the front side of the edge of the upper end of the positioning sleeve are respectively provided with a screw threaded hole.
6. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: go up cutting ferrule section of thick bamboo left side and be equipped with the cutting ferrule incision, and cutting ferrule incision width is greater than the first width of location, and cutting ferrule incision height is greater than the first height of location.
7. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: the piston rod drives the positioning head to rotate clockwise by +180 degrees or anticlockwise by-180 degrees.
8. The pneumatic rotary eccentric positioning apparatus of claim 1, characterized in that: the piston rod drives the positioning head to rotate clockwise by +90 degrees or anticlockwise by-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020748814.4U CN213377590U (en) | 2020-04-30 | 2020-04-30 | Pneumatic rotating eccentric positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020748814.4U CN213377590U (en) | 2020-04-30 | 2020-04-30 | Pneumatic rotating eccentric positioning device |
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| CN213377590U true CN213377590U (en) | 2021-06-08 |
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| CN202020748814.4U Active CN213377590U (en) | 2020-04-30 | 2020-04-30 | Pneumatic rotating eccentric positioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116352357A (en) * | 2023-05-19 | 2023-06-30 | 上海君屹工业自动化股份有限公司 | Automatic internal pressing mechanism of battery tray bushing welding tool |
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2020
- 2020-04-30 CN CN202020748814.4U patent/CN213377590U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116352357A (en) * | 2023-05-19 | 2023-06-30 | 上海君屹工业自动化股份有限公司 | Automatic internal pressing mechanism of battery tray bushing welding tool |
| CN116352357B (en) * | 2023-05-19 | 2023-08-15 | 上海君屹工业自动化股份有限公司 | Automatic internal pressing mechanism of battery tray bushing welding tool |
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