CN214367567U - Lengthened low-torque ball screw and assembling wrench thereof - Google Patents
Lengthened low-torque ball screw and assembling wrench thereof Download PDFInfo
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- CN214367567U CN214367567U CN202022917276.XU CN202022917276U CN214367567U CN 214367567 U CN214367567 U CN 214367567U CN 202022917276 U CN202022917276 U CN 202022917276U CN 214367567 U CN214367567 U CN 214367567U
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- positioning pin
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Abstract
The utility model relates to an add low moment of torsion ball of elongated and assembly spanner thereof, including the lead screw cover, the main lead screw, vice lead screw, main lead screw and vice lead screw end all are equipped with the butt joint axle, the lead screw cover both ends are equipped with the shoulder hole, the butt joint axle includes the tail end connecting axle, the threaded connection axle, the front end butt joint axle, the threaded connection axle periphery is equipped with connecting external screw thread, the shoulder hole includes the tail end connecting hole, the threaded connection hole, the front end connecting hole, be equipped with the connection internal thread in the threaded connection hole, lead screw cover both ends periphery is equipped with outer location pinhole, tail end connecting axle periphery is equipped with interior location pinhole, be equipped with the cylindric lock between outer location pinhole and the interior location pinhole. The assembly spanner comprises a handle and a spanner head arranged at the head of the handle, wherein the spanner head is provided with a holding bar surface attached to the periphery of the screw sleeve, and a connecting pin butted with an outer positioning pin hole is arranged in the holding bar surface. The structure is simple, and the main screw rod or the auxiliary screw rod is convenient to be assembled with the screw sleeve in a rotating way. The utility model discloses be convenient for break through the processing length restriction of processing equipment.
Description
Technical Field
The utility model relates to a lead screw technical field, in particular to add low moment of torsion ball of elongated and assembly spanner thereof.
Background
With the rapid development of the domestic numerical control machine tool industry in recent years, the length and the diameter of the lead screw are required to be longer and thicker. Due to the limitations of equipment and processing capacity, the ultra-long screw rod, particularly the screw rod with the length of more than 15 meters, still has limitations.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to the not enough of prior art, the utility model aims at providing a low moment of torsion ball screw of extension type and assembly spanner thereof.
The utility model provides a technical scheme that its technical problem adopted is: an elongated low-torque ball screw comprises a screw sleeve, a main screw connected with one end of the screw sleeve and an auxiliary screw connected with the other end of the screw sleeve, wherein butt-joint shafts connected with the screw sleeve are respectively arranged at the tail ends of the main screw and the auxiliary screw, stepped holes butted with the butt-joint shafts are respectively arranged at the two ends of the screw sleeve, each butt-joint shaft comprises a tail end connecting shaft, a threaded connecting shaft arranged at the head part of the tail end connecting shaft and a front end butt-joint shaft connected with the head part of the threaded connecting shaft, connecting external threads are arranged on the periphery of the threaded connecting shaft, each stepped hole comprises a tail end connecting hole matched with the tail end connecting shaft, a threaded connecting hole matched with the threaded connecting shaft and a front end connecting hole matched with the front end butt-joint shaft, connecting internal threads matched with the connecting external threads are arranged in the threaded connecting holes, and external positioning pin holes are arranged on the peripheries of the two ends of the screw sleeve, the outer periphery of the tail end connecting shaft is provided with an inner positioning pin hole coaxial with the outer positioning pin hole, a cylindrical pin is arranged between the outer positioning pin hole and the inner positioning pin hole, and the outer diameter size, the thread pitch, the middle diameter size, the middle diameter variation and the outer circle run-out of the main screw rod, the auxiliary screw rod and the screw rod sleeve are the same.
The lengthened lead screw in the design consists of a main lead screw, a lead screw sleeve and an auxiliary lead screw, one end face of the lead screw sleeve is continuously polished by a plane grinder, and the splicing precision is ensured by adjusting the meshing degree of the arc surface of a lead screw roller path by a special spanner and an effective measuring means. And the other end is spliced by the same operation. And (4) after the screw sleeve is repaired, the screw sleeve is butted with screws at two ends, a cylindrical pin is assembled and pinned and fixed, and the filing and the leveling splicing of the pin surface of the bench worker are finished. The technical problem that a longer lead screw cannot be machined due to equipment limitation is solved.
As a further improvement of the design, the outer positioning pin hole is positioned at the tooth top, so that the roller path is effectively prevented from being damaged, and the processing is convenient.
As a further improvement of the design, the outer positioning pin holes are distributed in a linear array along the axis of the screw sleeve, so that the torque bearing capacity of the joint is improved.
As a further improvement of the design, the opening parts at the two ends of the screw sleeve are provided with avoidance grooves, and the outer diameter of each avoidance groove is larger than that of the tail end connecting hole. The avoidance groove is convenient for reducing the workload of the plane grinder and the fitting degree of the butt joint of the screw sleeve and the main screw or the auxiliary screw.
As a further improvement of the design, the lead screw sleeves at the two ends of the threaded connecting hole are provided with the abdicating grooves, and the external diameters of the abdicating grooves are larger than the maximum hole diameters of the two sides. The stepped shaft and the screw sleeve are conveniently and tightly matched.
As a further improvement of the design, the improved screw rod type screw rod comprises a handle and a wrench head arranged at the head of the handle, wherein the wrench head is provided with a holding rod surface attached to the periphery of a screw rod sleeve, and a connecting pin in butt joint with an outer positioning pin hole is arranged in the holding rod surface. The structure is simple, and the main screw rod or the auxiliary screw rod is convenient to be assembled with the screw sleeve in a rotating way.
As a further improvement of the design, a lead screw avoiding groove is formed in the holding face, and interference between the wrench head and the lead screw sleeve is prevented.
The utility model has the advantages that: the utility model discloses well extension lead screw comprises main lead screw, lead screw cover, auxiliary screw triplex, grinds a terminal surface of continuous coping lead screw cover through the plane, utilizes meshing degree and the effectual measuring means of special spanner adjustment lead screw raceway arc surface, guarantees the concatenation precision. And the other end is spliced by the same operation. And (4) after the screw sleeve is repaired, the screw sleeve is butted with screws at two ends, a cylindrical pin is assembled and pinned and fixed, and the filing and the leveling splicing of the pin surface of the bench worker are finished. The technical problem that a longer lead screw cannot be machined due to equipment limitation is solved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall section structure of the extension screw of the present invention.
Fig. 2 is a perspective view of the assembly wrench of the present invention.
Fig. 3 is a working schematic diagram of the assembly wrench of the present invention.
In the drawing, 1, a main screw rod, 2, an avoiding groove, 3, a tail end connecting shaft, 4, a tail end connecting hole, 5, a threaded connecting shaft, 6, a front end connecting shaft, 7, an inner positioning pin hole, 8, a cylindrical pin, 9, an outer positioning pin hole, 10, a threaded connecting hole, 11, an avoiding groove, 12, an auxiliary screw rod, 13, a front end connecting hole, 14, a screw sleeve, 15, a handle, 16, a holding lever surface, 17, a screw rod avoiding groove, 18, a connecting pin and 19, a wrench head.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.
Example (b): an elongated low-torque ball screw comprises a screw sleeve 14, a main screw rod 1 connected with one end of the screw sleeve 14 and an auxiliary screw rod 12 connected with the other end of the screw sleeve 14, wherein butt-jointed shafts connected with the screw sleeve 14 are respectively arranged at the tail ends of the main screw rod 1 and the auxiliary screw rod 12, stepped holes in butt joint with the butt-jointed shafts are formed in the two ends of the screw sleeve 14, each butt-jointed shaft comprises a tail end connecting shaft 3, a threaded connecting shaft 5 arranged at the head of the tail end connecting shaft 3 and a front end butt-jointed shaft 6 connected with the head of the threaded connecting shaft 5, connecting external threads are arranged on the periphery of the threaded connecting shaft 5, each stepped hole comprises a tail end connecting hole 4 matched with the tail end connecting shaft 3, a threaded connecting hole 10 matched with the threaded connecting shaft 5 and a front end connecting hole 13 matched with the front end butt-jointed shaft 6, and internal threads matched with the connecting external threads are arranged in the threaded connecting hole 10, outer positioning pin holes 9 are formed in the peripheries of two ends of the screw sleeve 14, inner positioning pin holes 7 coaxial with the outer positioning pin holes 9 are formed in the periphery of the tail end connecting shaft 3, cylindrical pins 8 are arranged between the outer positioning pin holes 9 and the inner positioning pin holes 7, and the main screw 1, the auxiliary screw 12 and the screw sleeve 14 are identical in external diameter size, screw pitch, middle diameter size, middle diameter variation and external circle runout.
The lengthened lead screw in the design consists of a main lead screw 1, a lead screw sleeve 14 and an auxiliary lead screw 12, one end face of the lead screw sleeve 14 is ground continuously through a plane grinder, and the splicing precision is ensured by utilizing a special spanner to adjust the meshing degree of the arc surface of a lead screw roller path and an effective measuring means. And the other end is spliced by the same operation. And after finishing the repair of the screw sleeve 14, butting the screw sleeve with screws at two ends, assembling the cylindrical pin 8, pinning and fixing, and finishing the filing and leveling and splicing of the pin surface of the bench worker. The technical problem that a longer lead screw cannot be machined due to equipment limitation is solved.
As a further improvement of the design, the outer positioning pin hole 9 is positioned at the tooth top, so that the roller path is effectively prevented from being damaged, and the processing is convenient.
As a further improvement of the design, the outer positioning pin holes 9 are distributed along the axis of the screw rod sleeve 14 in an annular array, so that the torque bearing capacity of the joint is improved.
As a further improvement of the design, the opening parts at two ends of the screw sleeve 14 are provided with avoidance grooves 2, and the outer diameter of the avoidance grooves 2 is larger than that of the tail end connecting holes 4. The avoidance groove 2 is convenient for reducing the workload of the plane grinder and the fitting degree of the butt joint of the screw sleeve 14 and the main screw 1 or the auxiliary screw 12.
As a further improvement of the design, the lead screw sleeves 14 at two ends of the threaded connecting hole 10 are provided with the abdicating grooves 11, and the outer diameters of the abdicating grooves 11 are larger than the maximum hole diameters of the two sides. Facilitating a tight fit of the stepped shaft with the lead screw housing 14.
As a further improvement of the design, the improved wrench comprises a handle 15 and a wrench head 19 arranged at the head of the handle 15, wherein the wrench head 19 is provided with a holding bar surface 16 attached to the periphery of the handle 14, and a connecting pin 18 in butt joint with the hole of the outer positioning pin 9 is arranged in the holding bar surface 16. The structure is simple, and the main screw rod 1 or the auxiliary screw rod 12 and the screw sleeve 14 can be assembled in a rotating mode conveniently.
As a further improvement of the design, the holding face 16 is provided with a lead screw avoiding groove 17 to prevent the interference between the wrench head 19 and the lead screw sleeve 14.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. An elongated low-torque ball screw is characterized by comprising a screw sleeve, a main screw rod connected with one end of the screw sleeve and an auxiliary screw rod connected with the other end of the screw sleeve, wherein the tail ends of the main screw rod and the auxiliary screw rod are respectively provided with a butt joint shaft connected with the screw sleeve, two ends of the screw sleeve are respectively provided with a step hole in butt joint with the butt joint shafts, each butt joint shaft comprises a tail end connecting shaft, a threaded connecting shaft arranged at the head part of the tail end connecting shaft and a front end butt joint shaft connected with the head part of the threaded connecting shaft, the periphery of each threaded connecting shaft is provided with a connecting external thread, each step hole comprises a tail end connecting hole matched with the tail end connecting shaft, a threaded connecting hole matched with the threaded connecting shaft and a front end connecting hole matched with the front end butt joint shaft, and a connecting internal thread matched with the connecting external thread is arranged in each threaded connecting hole, the outer positioning pin holes are formed in the peripheries of two ends of the screw sleeve, the inner positioning pin holes coaxial with the outer positioning pin holes are formed in the periphery of the tail end connecting shaft, cylindrical pins are arranged between the outer positioning pin holes and the inner positioning pin holes, and the outer diameter size, the screw pitch, the middle diameter size, the middle diameter variation and the outer circle jumping of the main screw, the auxiliary screw and the screw sleeve are identical.
2. The elongated, low torque ball screw of claim 1 wherein said outer dowel hole is located at the top of the tooth.
3. An elongated, low torque ball screw as set forth in claim 2 wherein said outer registration pin holes are distributed in an annular array along said screw housing axis.
4. The elongated low torque ball screw as claimed in claim 1, wherein avoidance grooves are formed at openings at both ends of the screw housing, and an outer diameter of the avoidance grooves is larger than an outer diameter of the tail connecting hole.
5. The elongated low torque ball screw according to claim 1, wherein the screw housing at both ends of the threaded connection hole is provided with a relief groove, and the outside diameter of the relief groove is larger than the largest hole diameter at both sides.
6. An assembly wrench for assembling the lengthened low-torque ball screw of claim 1, which comprises a handle and a wrench head arranged at the head of the handle, wherein the wrench head is provided with a holding bar surface attached to the periphery of a screw sleeve, and a connecting pin butted with the outer positioning pin hole is arranged in the holding bar surface.
7. The assembly wrench for an elongated low torque ball screw according to claim 6, wherein the holding surface has a screw avoiding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022917276.XU CN214367567U (en) | 2020-12-08 | 2020-12-08 | Lengthened low-torque ball screw and assembling wrench thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022917276.XU CN214367567U (en) | 2020-12-08 | 2020-12-08 | Lengthened low-torque ball screw and assembling wrench thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367567U true CN214367567U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022917276.XU Active CN214367567U (en) | 2020-12-08 | 2020-12-08 | Lengthened low-torque ball screw and assembling wrench thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367567U (en) |
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2020
- 2020-12-08 CN CN202022917276.XU patent/CN214367567U/en active Active
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