CN210878571U - Screw rod transmission device - Google Patents
Screw rod transmission device Download PDFInfo
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- CN210878571U CN210878571U CN201921440317.1U CN201921440317U CN210878571U CN 210878571 U CN210878571 U CN 210878571U CN 201921440317 U CN201921440317 U CN 201921440317U CN 210878571 U CN210878571 U CN 210878571U
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- workbench
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- workstation
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Abstract
The utility model discloses a lead screw transmission device, it is including the stand that parallel set up, connect the upper plate on two stand upper ends perpendicularly, the upper end is fixed in the frame and many first guiding axles that parallel set up, with the lower extreme of many first guiding axles looks fixed connection's hypoplastron, the power transmission portion of fixed mounting on the hypoplastron, sliding connection is in the first workstation on first guiding axle, many second guiding axles on wearing to locate the upper plate, fixed connection is in the second workstation of second guiding axle upper end, power transmission portion is connected with the transmission of first workstation mutually, the lower extreme of first workstation and second guiding axle looks fixed connection. The utility model discloses can realize increasing new workstation workspace on the basis of original transmission nut stroke, thereby new workstation will not avoid in addition with power transmission part direct contact with original workstation motion path interference on the space to can realize the accurate positioning of new workstation motion position.
Description
Technical Field
The utility model belongs to the mechanical equipment field, in particular to screw rod transmission.
Background
The traditional screw rod transmission device is characterized in that a servo motor drives a workbench connected with a transmission nut to move axially, the device design can limit the working space range of the workbench, the working space of the workbench and the movement path of the workbench possibly interfere, and the utilization rate of the workbench is reduced, so that the screw rod transmission device which is not directly connected with a power transmission part, can increase the working space of the workbench and improve the utilization rate of the workbench is designed.
Disclosure of Invention
The utility model aims at providing a can realize increasing new workstation workspace's lead screw transmission on the basis of original drive nut stroke.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a lead screw transmission, it includes the frame, the frame is including parallel stand, the perpendicular connection in two upper plate on the stand upper end, transmission still include the upper end be fixed in many first guiding axles that set up in the frame and parallel, with many the hypoplastron of the lower extreme looks fixed connection of first guiding axle, fixed mounting in power transmission portion on the hypoplastron, sliding connection in first workstation on the first guiding axle, many wear to locate second guiding axle on the upper plate, fixed connection in the second workstation of second guiding axle upper end for drive the power transmission portion that first workstation reciprocated with first workstation looks transmission connection, first workstation with the lower extreme looks fixed connection of second guiding axle.
Preferably, a first guide sleeve is fixedly arranged on the first workbench in a penetrating mode, and the first guide shaft is arranged in the first guide sleeve in a penetrating mode.
Preferably, a second guide sleeve is fixedly arranged on the upper plate in a penetrating mode, and the second guide shaft is arranged in the second guide sleeve in a penetrating mode.
Preferably, the upper end face of the upper plate is provided with a bottom plate, the second guide shaft penetrates through the bottom plate, and the two end portions of the upper end face of the bottom plate are respectively provided with a mounting plate.
Preferably, the power transmission part comprises a plurality of lower side plates which are fixed on the lower end face of the lower plate and enclose a protection space, a motor mounting block fixed on the lower end part of the lower side plates, a servo motor fixed on the lower end face of the motor mounting block, a lead screw in transmission connection with the servo motor, a transmission nut in threaded connection with the lead screw and in fixed connection with the first workbench, and a transmission assembly connected between the lead screw and the servo motor.
Further, the transmission assembly comprises a coupler, a connecting rotating shaft, an inner ring and an angular contact ball bearing, wherein the coupler is connected to an output shaft of the servo motor and located in the protection space, the connecting rotating shaft is connected with the coupler and is coaxially and fixedly connected with the lead screw, the inner ring is fixedly sleeved on the lower end portion of the lead screw, positioning rings located on the upper side and the lower side of the angular contact ball bearing, a ring stop block used for fixing the position of the positioning ring, an upper side plate fixed on the upper end face of the lower plate, a bearing block fixed on the upper end portion of the upper side plate, and bearing stop blocks fixed on the upper end face and the lower end face of the bearing block, the positioning rings and the ring stop block are sleeved on the lead screw, the outer ring of the.
Preferably, the screw rod is rotationally connected with the bottom plate through a deep groove ball bearing.
Preferably, the lower end part of the first guide shaft is sleeved with a nylon gasket and a positioning block, and the positioning block is fixed on the lower plate and clings to the lower end face of the nylon gasket.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: a small number of parts such as guide shafts, guide sleeves and the workbench are added, so that the working space of the new workbench can be increased on the basis of the original travel of the transmission nut, the new workbench cannot be in direct contact with the power transmission part, the interference of the motion path of the original workbench in the space is avoided, and the accurate positioning of the motion position of the new workbench can be realized. In addition, motionless with traditional drive nut, lead screw pivoted power transmission mechanism compares, the utility model discloses can the effectual bearing quality who reduces the workstation.
Drawings
FIG. 1 is a schematic view of the overall structure of a screw rod transmission workbench device;
fig. 2 and 3 are schematic structural diagrams of the transmission part.
Detailed Description
The invention will be further described with reference to examples shown in the drawings.
As shown in fig. 1 to 3, the transmission device of the screw rod 12 includes a frame 7, the frame 7 includes two parallel columns 71, an upper plate 21 vertically connected to the upper ends of the two columns 71, the transmission device further includes a plurality of first guide shafts 22 whose upper ends are fixed in the frame 7 and are parallel to each other, a lower plate 113 fixedly connected to the lower ends of the plurality of first guide shafts 22, a power transmission part 1 fixedly mounted on the lower plate 113, a first worktable 23 slidably connected to the first guide shafts 22, a plurality of second guide shafts 32 passing through the upper plate 21, and a second worktable 31 fixedly connected to the upper ends of the second guide shafts 32.
The power transmission part 1 for driving the first workbench 23 to move up and down is in transmission connection with the first workbench 23, and the first workbench 23 is fixedly connected with the lower end part of the second guide shaft 32. A first guide sleeve 24 is fixedly arranged on the first workbench 23 in a penetrating manner, and the first guide shaft 22 is arranged in the first guide sleeve 24 in a penetrating manner. A second guide sleeve 33 is fixedly arranged on the upper plate 21 in a penetrating manner, and the second guide shaft 32 is arranged in the second guide sleeve 33 in a penetrating manner. The upper end face of the upper plate 21 is provided with a bottom plate 6, the second guide shaft 32 penetrates through the bottom plate 6, and the two end parts of the upper end face of the bottom plate 6 are respectively provided with a mounting plate 4. The power transmission part 1 comprises a plurality of lower side plates 114 which are fixed on the lower end surface of the lower plate 113 and enclose to form a protection space, a motor mounting block 18 which is fixed on the lower end part of the lower side plates 114, a servo motor 19 which is fixed on the lower end surface of the motor mounting block 18, a screw rod 12 which is in transmission connection with the servo motor 19, a transmission nut 13 which is in threaded connection with the screw rod 12 and is fixedly connected with the first workbench 23, and a transmission assembly which is connected between the screw rod 12 and the servo motor 19. The transmission assembly comprises a coupler 17 connected to an output shaft of the servo motor 19 and positioned in the protection space, a connecting rotating shaft 115 connected with the coupler 17 and coaxially and fixedly connected with the screw rod 12, an angular contact ball bearing 15 with an inner ring fixedly sleeved on the lower end part of the screw rod 12, positioning rings 14 positioned on the upper side and the lower side of the angular contact ball bearing 15, a ring stopper 16 for fixing the position of the positioning ring 14, an upper side plate 112 fixed on the upper end surface of the lower plate 113, a bearing block 111 fixed on the upper end part of the upper side plate 112, and a bearing stopper 110 fixed on the upper end surface and the lower end surface of the bearing block 111, the positioning ring 14 and the ring stopper 16 are sleeved on the screw rod 12, the outer ring of the angular contact ball bearing 15 is fixedly connected in the bearing block 111, and the bearing stopper 110 is located on the upper side and the lower side of the angular contact ball bearing 15. The screw rod 12 is rotatably connected with the bottom plate 6 through a deep groove ball bearing 11. The lower end of the first guide shaft 22 is sleeved with a nylon washer 26 and a positioning block 26, and the positioning block is fixed on the lower plate 113 and is tightly attached to the lower end face of the nylon washer.
The servo motor 19 drives the screw rod 12 to rotate through the coupler 18, the angular contact ball bearing 15, the bearing block 111, the upper side plate 112 and the lower plate 113 on the screw rod 12 fix the rotation position of the screw rod 12 so as to enable the transmission nut 13 to do up-and-down linear motion, the deep groove ball bearing 11 limits the radial motion of the screw rod 12, the transmission nut 13 drives the first workbench 23 to do up-and-down motion, the first guide shaft 22 and the first guide sleeve 24 position the first workbench 23 to enable the first workbench 23 to do linear motion, the first workbench 23 drives the second guide shaft 32 to penetrate through the second guide sleeve 33 to push the second workbench 31 to do up-and-down motion, the second guide shaft 32 and the second guide sleeve 33 position the second workbench 31 to enable the second workbench to drive the product 8 to do linear motion.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. A screw rod transmission device is characterized in that: the transmission device comprises a frame, wherein the frame comprises upright columns which are arranged in parallel, an upper plate which is vertically connected to the upper end parts of the two upright columns, a plurality of first guide shafts which are arranged in the frame in parallel, a lower plate which is fixedly connected with the lower end parts of the first guide shafts, a power transmission part which is fixedly arranged on the lower plate, a first workbench which is connected to the first guide shafts in a sliding mode, a plurality of second guide shafts which are arranged on the upper plate in a penetrating mode, and a second workbench which is fixedly connected to the upper end parts of the second guide shafts, wherein the power transmission part which is used for driving the first workbench to move up and down is in transmission connection with the first workbench, and the first workbench is fixedly connected with the lower end parts of the second guide shafts.
2. The screw drive of claim 1, wherein: a first guide sleeve is fixedly arranged on the first workbench in a penetrating mode, and the first guide shaft is arranged in the first guide sleeve in a penetrating mode.
3. The screw drive of claim 1, wherein: a second guide sleeve is fixedly arranged on the upper plate in a penetrating mode, and a second guide shaft is arranged in the second guide sleeve in a penetrating mode.
4. The screw drive of claim 1, wherein: the upper plate upper end face is provided with a bottom plate, the second guide shaft penetrates through the bottom plate, and mounting plates are arranged on two end portions of the bottom plate upper end face respectively.
5. The screw drive of claim 1, wherein: the power transmission part comprises a plurality of lower side plates which are fixed on the lower end face of the lower plate and enclose a protection space, a motor mounting block fixed on the lower end part of the lower side plates, a servo motor fixed on the lower end face of the motor mounting block, a lead screw in transmission connection with the servo motor, a transmission nut in threaded connection with the lead screw and in fixed connection with the first workbench, and a transmission assembly connected between the lead screw and the servo motor.
6. The screw drive of claim 5, wherein: the transmission assembly comprises a coupler, a connecting rotating shaft, an inner ring fixing sleeve, an angular contact ball bearing, positioning rings, a ring stop block, an upper side plate, a bearing block and a bearing stop block, wherein the coupler is connected to an output shaft of the servo motor and is positioned in a protection space, the connecting rotating shaft is connected with the coupler and is fixedly connected with the lead screw in a coaxial mode, the inner ring fixing sleeve is arranged on the lower end portion of the lead screw, the positioning rings are positioned on the upper side and the lower side of the angular contact ball bearing, the ring stop block is used for fixing the position of the positioning ring, the upper side plate is fixed on the upper end face of the lower plate, the bearing block is fixed on the upper end portion of the upper side plate, the bearing stop block is.
7. The screw drive of claim 4, wherein: the screw rod is rotatably connected with the bottom plate through a deep groove ball bearing.
8. The screw drive of claim 1, wherein: the lower end of the first guide shaft is sleeved with a nylon gasket and a positioning block, and the positioning block is fixed on the lower plate and clings to the lower end face of the nylon gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440317.1U CN210878571U (en) | 2019-08-29 | 2019-08-29 | Screw rod transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440317.1U CN210878571U (en) | 2019-08-29 | 2019-08-29 | Screw rod transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210878571U true CN210878571U (en) | 2020-06-30 |
Family
ID=71328029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921440317.1U Active CN210878571U (en) | 2019-08-29 | 2019-08-29 | Screw rod transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210878571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497212A (en) * | 2019-08-29 | 2019-11-26 | 苏州瑞玛精密工业股份有限公司 | A kind of spindle gear |
-
2019
- 2019-08-29 CN CN201921440317.1U patent/CN210878571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497212A (en) * | 2019-08-29 | 2019-11-26 | 苏州瑞玛精密工业股份有限公司 | A kind of spindle gear |
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