CN209856324U - Electric screw rod sliding table with spring buffering - Google Patents
Electric screw rod sliding table with spring buffering Download PDFInfo
- Publication number
- CN209856324U CN209856324U CN201920539867.2U CN201920539867U CN209856324U CN 209856324 U CN209856324 U CN 209856324U CN 201920539867 U CN201920539867 U CN 201920539867U CN 209856324 U CN209856324 U CN 209856324U
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- China
- Prior art keywords
- spring
- nut
- lead screw
- optical axis
- buffering
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- Expired - Fee Related
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Abstract
The utility model provides an electronic lead screw slip table with spring buffering, includes two optical axes that are parallel to each other, the axial direction of optical axis distributes around along, two parallel distribution about the optical axis is on the horizontal direction, two be equipped with the lead screw that axial direction distributes around along between the optical axis, the both ends of optical axis the both ends of lead screw all are fixed with the support. The beneficial effects are as follows: the synchronous transmission is converted into buffer transmission with certain delay, and the driving and transmission elements are protected when hard braking occurs. And meanwhile, multi-stage buffering is designed, so that buffering in each transmission step is realized.
Description
Technical Field
The utility model relates to a carry the frock field, especially an electronic lead screw slip table through multistage buffering is realized to spring.
Background
The working principle of the electric screw rod sliding table is that a motor drives a screw rod to rotate, so that a nut in threaded connection with the screw rod moves on the screw rod along the axial direction of the screw rod. In order to prevent the nut and the screw from rotating synchronously in an idle state, the nut is generally fixed on the sliding table, that is, the sliding table is driven to move by the nut. In the existing structural design, a nut is directly fixed on a sliding table, a motor drive and the sliding table move completely synchronously without any buffer, and in the process of drive transmission, no matter any hard brake occurs, the whole transmission machine can be directly constructed to be forced to brake, and all elements in a transmission mechanism bear the brake stress, so that the damage to the sliding table is extremely large. The table plate of the existing sliding table is provided with the collision energy-absorbing assembly to realize buffering, but the improvement of the existing sliding table in practical production and use is only to realize the change of the type of the table plate of the sliding table, so that the transported workpiece is protected, the whole transmission mechanism is still completely hard to brake, and the buffering effect cannot be realized.
Disclosure of Invention
The utility model aims at solving the problem, an electronic lead screw slip table with spring buffering has been designed. The specific design scheme is as follows:
an electric screw sliding table with spring buffering comprises two mutually parallel optical axes, wherein the axial direction of the optical axes is distributed along the front and the back, the two optical axes are distributed in a left-right parallel mode in the horizontal direction, the two screw shafts distributed along the front and the back are arranged between the optical axes, the two ends of the optical axes are fixed with a support, the support is a vertically placed rectangular frame-shaped structure metal piece, the optical axes and the screw shafts penetrate through the bottom edge of a rectangular metal frame, the screw shafts are connected with the support bearings, bearings for connecting the screw shafts with the support bearings are radial bearing ball bearings, the optical axes are fixedly connected with the support, the fixed connection is preferably clamp fixed connection and further comprises threaded connection and clamping key connection, the rear end of the screw shafts is connected with a motor, and the motor is connected with the screw shafts, the coupler used for connecting the motor and the lead screw is a flexible coupler, a motor support used for fixing the motor is connected with the support through bolts, the coupler is positioned in a rectangular frame space surrounded by the support and the motor support, a sliding block is arranged on the optical axis, the sliding block preferably but not limited to WJ200UM type sliding blocks and WS200UM type sliding blocks is adopted, the sliding blocks positioned on the left optical axis and the right optical axis are connected through a fixing plate to form a sliding assembly, the number of the sliding assemblies is multiple, the fixing plate is a metal plate placed along the horizontal direction, the fixing plate is preferably connected with the sliding blocks through bolts, the lead screw is sleeved with a nut in threaded connection with the lead screw, an annular bulge is arranged on the fixing plate positioned at the rearmost side, the annular bulge and the fixing plate are of an integral structure formed by one-time casting, and the axial direction of the annular bulge, the stopper is installed to cyclic annular bellied front side, the stopper is tubular structure, the rear side of stopper with cyclic annular protruding bolted connection, the rear side of nut is equipped with the lug of rectangle, the front side of stopper be equipped with the caulking groove that the lug agrees with mutually, the lug embedding in the caulking groove, the cover has first spring, and is a plurality of between stopper and the nut through second spring coupling, first spring, second spring are column spring.
Annular bellied internal diameter the section of thick bamboo internal diameter of stopper all is greater than the maximum diameter of lead screw, annular bellied rear side external diameter equals the section of thick bamboo external diameter of stopper is used for the stopper with the bolt that annular arch is connected is a plurality of, and with annular bellied axis is central annular array distribution is being shown on the annular bellied radial cross-section, and the diameter that its annular array distributes is greater than the external diameter of first spring.
The outer diameter of the front side of the nut is larger than that of the rear side of the nut, the outer diameter of the rear side of the limiting block is larger than that of the front side of the limiting block, specifically, the axial sections of the nut and the limiting block are in two 'T' -shaped structures which are radially coupled and transversely arranged, the axial sections of the nut and the limiting block are integrally formed into an 'H' -shaped structure, the first spring is sleeved on the horizontal edge of the 'H' -shaped structure, and the front end and the rear end of the first spring are respectively abutted against two vertical edges of the 'H' -shaped structure.
The first spring is fixedly connected with the nut and the limiting block, the fixing mode of the first spring is preferably in bonding connection, and the first spring further comprises inserting and embedding connection and welding connection.
It is a plurality of the sliding assembly is followed the axial direction of optical axis is linear array and distributes, every the sliding assembly all is equipped with independently the fixed plate, adjacent two through second spring coupling between the fixed plate, the preferred adhesive bonding that adopts of connected mode between second spring and the fixed plate is connected, still including inserting to inlay connection, welded connection.
The quantity of lug, caulking groove is a plurality of and quantity equals, and is a plurality of lug, caulking groove use annular bellied axis is central be annular array distribution on the bellied radial cross-section of annular, and is a plurality of lug, caulking groove are in position coupling on the radial cross-section of lead screw.
And a bedplate is arranged above the sliding blocks and is fixedly connected with one of the sliding blocks. The bedplate is connected with the sliding block through a bolt, a cushion block is further arranged between the bedplate and the sliding block connected with the bedplate, and the bolt used for connecting the bedplate and the sliding block sequentially penetrates through the bedplate, the cushion block, the sliding block and the fixing plate from bottom to top and is fixed through a nut. Gaps with the same height as the cushion blocks are reserved between the bedplate and other unconnected slide blocks.
The number of the limiting sliding assemblies is preferably two.
Through the utility model discloses an above-mentioned technical scheme obtains has spring buffering's electronic lead screw slip table, and its beneficial effect is:
the synchronous transmission is converted into buffer transmission with certain delay, and the driving and transmission elements are protected when hard braking occurs. And meanwhile, multi-stage buffering is designed, so that buffering in each transmission step is realized.
Drawings
Fig. 1 is a schematic structural view of an electric screw sliding table with spring buffering according to the present invention;
fig. 2 is a schematic structural view of the sliding assembly of the present invention;
fig. 3 is a schematic structural view of the bedplate of the present invention mounted on the first slide block;
fig. 4 is a schematic structural view of the bedplate of the present invention mounted on the endmost slide block; in the figure, 1, the optical axis; 2. a lead screw; 3. a support; 4. a motor; 5. a coupling; 6. a motor bracket; 7. a slider; 8. a fixing plate; 9. a nut; 10. an annular projection; 11. a limiting block; 12. A bump; 13. caulking grooves; 14. a first spring; 15. a second spring; 16. a platen; 17. and a cushion block.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides an electronic lead screw slip table with spring buffering, includes two optical axis 1 that are parallel to each other, the axial direction of optical axis 1 distributes around along, two parallel distribution about optical axis 1 is on the horizontal direction, two be equipped with the lead screw 2 that axial direction distributes around along between the optical axis 1, the both ends of optical axis 1 the both ends of lead screw 2 all are fixed with support 3, support 3 is the rectangle frame column structure metalwork of perpendicular placing, optical axis 1, lead screw 2 run through the base of rectangle metal frame, wherein lead screw 2 with support 3 bearing connection for the bearing that lead screw 2 and support 3 bearing are connected is radial bearing's ball bearing, optical axis 1 with support 3 fixed connection, fixed connection is preferentially for clamp fixed connection, still includes threaded connection, card key connection, the rear end of lead screw 2 is connected with motor 4, the motor 4 is connected with the screw rod 2 through a shaft, the coupling 5 for connecting the motor 4 with the screw rod 2 is a flexible coupling, the motor support 6 for fixing the motor 4 is connected with the support 3 through a bolt, the coupling 5 is positioned in a rectangular frame space enclosed by the support 3 and the motor support 6, the optical axis 1 is provided with a slide block 7, the slide block 7 preferably but not limited to adopt a WJ200UM type slide block and a WS200UM type slide block, the slide blocks 7 positioned on the left optical axis and the right optical axis 1 are connected through a fixing plate 8 to form a slide assembly, the number of the slide assemblies is multiple, the fixing plate 8 is a metal plate placed along the horizontal direction, the fixing plate 8 is preferably connected with the slide block 7 through a bolt, the screw rod 2 is sleeved with a nut 9 in threaded connection with the screw rod 2, and the fixing plate 8 positioned at the rearmost side is provided with an annular, annular arch 10 with fixed plate 8 is one shot casting fashioned overall structure, annular arch 10's axial direction distributes along the front and back, stopper 11 is installed to annular arch 10's front side, stopper 11 is the tubular structure, stopper 10's rear side with annular arch 11 bolted connection, the rear side of nut 9 is equipped with the lug 12 of rectangle, stopper 11's front side be equipped with the caulking groove 13 that lug 12 agrees with mutually, lug 12 imbeds in the caulking groove 13, the cover has first spring 14 between stopper 11 and the nut 9, and is a plurality of connect through second spring 15 between the slip subassembly, first spring 14, second spring 15 are cylindrical spring.
The internal diameter of annular protrusion 10 the section of thick bamboo internal diameter of stopper 11 all is greater than the maximum diameter of lead screw 2, the rear side external diameter of annular protrusion 10 equals stopper 11's section of thick bamboo external diameter, be used for stopper 11 with the bolt that annular protrusion 10 is connected is a plurality of, and uses the axis of annular protrusion 10 is central annular protrusion 10 is the annular array and distributes on the radial cross-section, and the diameter that its annular array distributes is greater than the external diameter of first spring 14.
The outer diameter of the front side of the nut 9 is larger than that of the rear side of the nut, the outer diameter of the rear side of the limiting block 11 is larger than that of the front side of the limiting block, specifically, the axial cross sections of the nut 9 and the limiting block 11 are in two 'T' -shaped structures which are radially coupled and transversely arranged, the axial cross sections of the nut 9 and the limiting block 11 are integrally formed into an 'H' -shaped structure, the first spring 14 is sleeved on the horizontal edge of the 'H' -shaped structure, and the front end and the rear end of the first spring 14 respectively abut against two vertical edges of the 'H' -shaped structure.
The first spring 14 is fixedly connected with the nut 9 and the limiting block 11, and the fixing mode of the first spring is preferably adhesive connection, and the first spring further comprises inserting connection and welding connection.
It is a plurality of the sliding assembly is followed optical axis 1's axial direction is linear array and distributes, every the sliding assembly all is equipped with independently fixed plate 8, adjacent two connect through second spring 15 between the fixed plate 8, the preferred bonding that adopts of connected mode between second spring 15 and the fixed plate 8 is still including inserting and inlaying connection, welded connection.
The quantity of lug 12, caulking groove 13 is a plurality of and quantity equals, and is a plurality of lug 12, caulking groove 13 use the axis of annular arch 10 is in as the center be annular array distribution on the radial cross-section of annular arch 10, it is a plurality of lug 12, caulking groove 13 are in position coupling on the radial cross-section of lead screw 2.
A bedplate 16 is arranged above the sliding blocks 7, and the bedplate 16 is fixedly connected with one of the sliding blocks 7. The bedplate 16 is connected with the sliding block 7 through bolts, a cushion block 17 is further arranged between the bedplate 16 and the sliding block 7 connected with the bedplate, and the bolts used for connecting the bedplate 16 and the sliding block 7 sequentially penetrate through the bedplate 16, the cushion block 17, the sliding block 7 and the fixing plate 8 from bottom to top and are fixed through nuts. Gaps with the same height as the cushion blocks 17 are reserved between the bedplate 16 and other unconnected slide blocks 7.
The number of the limiting sliding assemblies is preferably two.
The driving principle is as follows:
the mechanism is basically the same as that of the traditional electric screw plate, and the difference is the transmission between the nut 9 and the limiting block 11 and the transmission between the sliding components.
When the motor 4 is started, a motor shaft of the motor 4 drives the screw rod 2 to rotate through the coupler 5,
in the rotation process of the screw rod 2, as the screw rod is in threaded connection with the nut 9, the nut 9 can be driven to synchronously rotate together under the no-load state theoretically,
due to the spacing between the nut 9 and the spacing block 11, the rotation of the nut 9 is avoided,
the sliding block 7 is connected with the optical axis 1 in a sliding way, the sliding block 7 is limited to move along the radial direction of the optical axis 1, similarly, the fixing plate 8 fixedly connected with the sliding block 7, the annular protrusion 10 which is formed by casting and forming the fixing plate 8 in one time and the limiting block 11 fixedly connected with the annular protrusion 10 are also limited, at this time, because the limiting block 11 and the nut 9 are mutually inserted and embedded through the convex block 12 and the groove 13, the rotation of the nut 9 is prevented,
when the screw 2 is rotated but the nut 9 is not rotated, the nut 9 is moved in the axial direction of the screw 2, which is related to the direction of rotation of the screw 2,
because the nut 9 moves, the relative displacement trend with the limiting block 11 can be generated, so that the first spring 14 generates compression or stretching deformation, because the inner diameters of the annular bulge 10 and the limiting block 11 are larger than the maximum outer diameter of the lead screw 2, the annular bulge and the limiting block are not in contact with the lead screw 2, but provide guidance for the integral sliding assembly through the connection of the optical axis 1 and the sliding block 7,
based on the elasticity that resets of first spring 14 drives whole slip subassembly again and follows optical axis 1 slides, with the theory of operation of first spring 14, also can be based on the deformation of second spring 15 and elasticity that resets realize the drive between two adjacent slip subassemblies, finally drive slip table 16 removes.
When the motor outputs torsion at a constant speed, the first spring 14 and the second spring are in balanced deformation, the type variation amount of the first spring and the second spring depends on the rotating speed of the screw rod 2, the weight of a loaded object and the like, and the whole sliding table can also be conveyed at a constant speed.
Braking damping of the first spring 14:
when the motor shaft of the motor stops rotating suddenly, the screw rod 2 stops working firstly, and because the torque transmission is adopted between the screw rod 2 and the motor shaft, and the diameter of the screw rod 2 is relatively small, the damage to the screw rod 2 and the coupling 5 in the locking process is small,
based on the driving principle, the next stop is the nut 9, and because the nut 9 has small mass and small braking inertia, the damage to the screw rod 2 connected with the screw thread is not great,
in traditional electronic lead screw slip table design, nut 9 is fixed on the slip subassembly, will cause the scram with nut 9 fixed connection's whole slip subassembly behind this step, because still carry on the work piece on the slip table, and whole slip subassembly also has great quality, if there is not the buffering, whole slip subassembly and the work piece that carries on have very big braking inertia, can strike lead screw 2 and nut 9 and the screw thread of being connected, still can produce a great momentum in the axial direction through the transmission of lead screw 2, the bearing that originally is used for lead screw 2 and is connected with support 3 all is radial load bearing's bearing, be used for carrying on heavier work piece, axial impact at this moment can cause very big damage to the bearing, simultaneously along the damaged shaft coupling 5 and motor 4 in the axial.
In this application, the slip subassembly carries on the goods, and the general great axial momentum that can produce, the impulse along fore-and-aft direction promptly, but what assault this moment is not lead screw 2, perhaps before assaulting lead screw 2, can assault first spring 14 earlier, realizes one and makes first spring compression or tensile buffering, avoids causing axial damage to bearing, shaft coupling, motor 4.
Similarly, when the sliding table 10 is blocked, the integral sliding assembly is blocked, and the motor still drives the screw rod 2 to rotate, at this time, the buffering is realized by the first spring 14.
The buffering mechanism of the second spring:
the second spring 15 also absorbs energy based on the deformation thereof to achieve buffering between two adjacent sliding assemblies, and indirectly, the impact of the whole sliding assembly on the first spring 14 is reduced before the first spring 14 deforms.
The second spring 15 may be a plurality based on the number of the sliding assemblies, when the bedplate 16 is installed, the sliding effect is better when the bedplate 16 is connected with the sliding assembly which is further forward, but correspondingly, based on the driving principle, the driving delay is longer, the positioning accuracy of the bedplate 16 is lower, during the use, the number of the sliding assemblies and the installation position of the bedplate 16 are selected according to the specific needs of the use, and when the bedplate 16 is connected with the sliding assembly which is at the rearmost end, the buffering based on the second spring 15 cannot be generated.
The gasket 17 between the bedplate 16 and the sliding block 7 can prevent the ground of the bedplate 16 from rubbing against other sliding blocks 7 after being installed with one sliding block 7, and ensure the normal work of the second spring 15.
Buffering stress generated by the torsion motion trend:
in the above driving principle, although the driving process can avoid the nut 9 from idling and rotating synchronously with the screw rod 2 by the above fixing mode, the nut 9 has a tendency of rotating after all, and in order to overcome the stress generated by the tendency.
The first spring 14 is a cylindrical spring, and two ends of the first spring are respectively fixedly connected with the annular bump 10 and the limiting block 11, and as the attribute of the cylindrical spring, the first spring can deform along the twisting direction, so that buffering is realized.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (7)
1. The utility model provides an electronic lead screw slip table with spring buffering, includes two optical axis (1) that are parallel to each other, two be equipped with lead screw (2) between optical axis (1), the both ends of lead screw (2) are all fixed with support (3), the rear end and the motor (4) of lead screw (2) are connected, motor (4) and lead screw (2) even hub connection, install slider (7) on optical axis (1), be located about two connect through fixed plate (8) between slider (7) on optical axis (1) and form the slip subassembly, the quantity of slip subassembly is a plurality of, the cover has nut (9) rather than threaded connection on lead screw (2), its characterized in that, be located the rearmost side be equipped with annular arch (10) on fixed plate (8), stopper (11) are installed to the front side of annular arch (10), stopper (11) are the tubular structure, the rear side of stopper (11) with cyclic annular arch (10) bolted connection, the rear side of nut (9) is equipped with lug (12) of rectangle, the front side of stopper (11) be equipped with caulking groove (13) that lug (12) agree with mutually, lug (12) embedding in caulking groove (13), the cover has first spring (14) between stopper (11) and nut (9), and is a plurality of connect through second spring (15) between the slip subassembly, first spring (14), second spring (15) are cylindrical spring.
2. The electric screw sliding table with spring buffering as claimed in claim 1, wherein the inner diameter of the annular protrusion (10) and the inner diameter of the barrel of the limiting block (11) are both larger than the maximum diameter of the screw (2).
3. The electric screw sliding table with spring buffering as claimed in claim 1, characterized in that the outer diameter of the front side of the nut (9) is larger than that of the rear side thereof, and the outer diameter of the rear side of the limiting block (11) is larger than that of the front side thereof.
4. The electric screw sliding table with the spring buffer function according to claim 1, wherein the first spring (14) is fixedly connected with the nut (9) and the limiting block (11).
5. The electric screw sliding table with spring buffering as claimed in claim 1, wherein each sliding assembly is provided with an independent fixing plate (8), and two adjacent fixing plates (8) are connected through a second spring (15).
6. The electric screw sliding table with spring buffering as claimed in claim 1, wherein the number of the projections (12) and the number of the caulking grooves (13) are both multiple and equal, and the multiple projections (12) and the multiple caulking grooves (13) are coupled in position on the radial section of the screw (2).
7. The electric screw sliding table with the spring buffer function according to claim 5, wherein a platen (16) is installed above the sliding blocks (7), the platen (16) is fixedly connected with one of the sliding blocks (7), the platen (16) is in bolted connection with the sliding blocks (7), and a cushion block (17) is further arranged between the platen (16) and the sliding blocks (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539867.2U CN209856324U (en) | 2019-04-19 | 2019-04-19 | Electric screw rod sliding table with spring buffering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539867.2U CN209856324U (en) | 2019-04-19 | 2019-04-19 | Electric screw rod sliding table with spring buffering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856324U true CN209856324U (en) | 2019-12-27 |
Family
ID=68938408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920539867.2U Expired - Fee Related CN209856324U (en) | 2019-04-19 | 2019-04-19 | Electric screw rod sliding table with spring buffering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747095A (en) * | 2020-12-29 | 2021-05-04 | 苏州天准科技股份有限公司 | Drive assembly and automatic visual detection device of flexible circuit board |
| CN114110049A (en) * | 2021-12-06 | 2022-03-01 | 上海思源高压开关有限公司 | High-voltage switch mechanism braking device |
-
2019
- 2019-04-19 CN CN201920539867.2U patent/CN209856324U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747095A (en) * | 2020-12-29 | 2021-05-04 | 苏州天准科技股份有限公司 | Drive assembly and automatic visual detection device of flexible circuit board |
| CN114110049A (en) * | 2021-12-06 | 2022-03-01 | 上海思源高压开关有限公司 | High-voltage switch mechanism braking device |
| CN114110049B (en) * | 2021-12-06 | 2023-07-25 | 上海思源高压开关有限公司 | Braking device of high-voltage switch mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |