CN220547729U - Cutting device for internal threads of nuts - Google Patents
Cutting device for internal threads of nuts Download PDFInfo
- Publication number
- CN220547729U CN220547729U CN202322243619.2U CN202322243619U CN220547729U CN 220547729 U CN220547729 U CN 220547729U CN 202322243619 U CN202322243619 U CN 202322243619U CN 220547729 U CN220547729 U CN 220547729U
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- nut
- fixing plate
- cutter
- fixed
- cutting device
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- 238000005520 cutting process Methods 0.000 title claims abstract description 19
- 238000003801 milling Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a cutting device for internal threads of nuts, which comprises a workbench and a main shaft, wherein the main shaft is vertical to the workbench, a movable base is arranged on the workbench, the base comprises two chucks, the opposite surfaces of the two chucks are provided with chucks, a clamp is arranged between the chucks, the clamp comprises a fixing plate and positioning seats positioned at two ends of the fixing plate, nut bodies are fixed on the fixing plate, and at least two nut bodies are fixed on the fixing plate. Through fixing the product and processing in this milling device, disposable centre gripping location combines the processing of the full-automatic internal thread of completion product of programming, product positive and negative breach and counter bore isotructure, eliminates and carries out the product processing size error because of dismouting location many times, guarantees that product quality is stable, improves operating efficiency greatly.
Description
Technical Field
The utility model relates to the technical field of nut machining, in particular to a cutting device for internal threads of nuts.
Background
Compared with a common screw rod, the ball screw rod can run for a long time, abrasion and faults are not easy to occur, the service life is prolonged, the maintenance and replacement frequency and cost are reduced, sliding friction is reduced by utilizing the balls, and the transmission efficiency is improved, so that the ball screw rod is extremely wide in application. The ball screw comprises a nut body and a screw rod, wherein the nut body is provided with an end cover, the inner surface of the nut body is provided with threads, the end part of the nut body is provided with a notch for installing an end guide component, the position of the notch and the threads have dimensional requirements, the notch 92 (an inverter a (circulator) is arranged in the notch) for milling the front and the back through programming of a machining center, the internal threads 93 are turned through a numerical control lathe, two procedures are respectively completed on two devices, the nut body needs to be positioned twice, dimensional errors are easily caused by the two positioning, the dimension between the internal threads and the notch of the finished nut body is wrong, the quality of a processed product is unstable, the contact angle b between the two inverters is not well controlled (aligned), so that the quality is unstable, and the performance of the ball screw is influenced. Also larger pitch internal thread lathes are generally not completed.
Disclosure of Invention
Aiming at the defects in the background technology, the utility model provides a cutting device for internal threads of nuts, and overcomes the defects.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a cutting device of nut internal screw thread, includes workstation and main shaft, the main shaft is perpendicular with the workstation, is equipped with mobilizable base on the workstation, and the base includes two, is equipped with the chuck on the face that two frames are relative, is equipped with anchor clamps between the chuck, anchor clamps include the fixed plate and are located the positioning seat at fixed plate both ends, and the nut body is fixed on the fixed plate, at least two nut bodies are fixed on the fixed plate.
The nut body is provided with an end cover, the thickness of the fixing plate is smaller than the height of the nut body, a through hole and a screw hole are formed in the fixing plate, the nut body is arranged in the through hole in a penetrating mode, and the end cover of the nut body is fixed on the fixing plate through a screw.
At least two through holes are formed, a screw hole is formed between every two adjacent through holes, and the screw presses the end covers of the nut body positioned on the left side and the right side of the screw hole on the fixing plate.
The end cover of the nut body is provided with a notch, and the position of the notch is positioned on the transverse central line of the fixing plate.
The section of the positioning seat is in a step shape, and the end part of the fixing plate is fixed on the step surface of the positioning seat through a screw; the thickness of the end part of the fixing plate is larger than that of the middle part of the fixing plate.
The chuck can turn over relative to the machine base.
The milling cutter or the thread cutter is arranged on the main shaft, the thread cutter consists of a cutter column and a cutter core, the cutter column is fixedly connected with the main shaft, a concave surface is arranged at the lower end of the cutter column, a groove is arranged on the concave surface, and the cutter core is fixed in the groove through a nail.
The cutter core is triangular, the shape of the groove is consistent with that of the cutter core, and the working end of the cutter core extends out of the cutter column.
The side surface of the base is provided with a groove and a fixing notch, and the fixing notch is communicated with the groove and is vertical to the groove; the workbench consists of strip-shaped pieces which are arranged in parallel, a gap is arranged between every two adjacent strip-shaped pieces, and the fixing notch is opposite to the gap; the base is fixedly connected with the work through bolts, and the bolts penetrate through the fixing gaps and the gaps.
Due to the adoption of the technical scheme, the problems that the quality of a processed product is unstable and the quality is unstable due to the fact that two pieces of equipment are needed to be used for processing internal threads and gaps on the nut body of the existing ball screw and clamping and positioning are carried out for many times are effectively solved. The product is fixed in the milling device for processing, the product is clamped and positioned once, the processing of the internal threads and the notch of the product is completed automatically by combining programming, the product processing dimension errors caused by repeated disassembly and assembly of the positioning belt are eliminated, the product quality is ensured to be stable, and the operation efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a product nut body.
Fig. 2 is a partial schematic view of a product secured to a mounting plate.
Fig. 3 is a top view of the product secured to the mounting plate.
Fig. 4 is a schematic structural view of the present utility model.
Fig. 5 is a schematic view of a partial structure of the present utility model.
Fig. 6 is an enlarged partial schematic view of fig. 4.
Fig. 7 is a schematic structural view of the product.
Detailed Description
Referring to fig. 1-7, the utility model discloses a nut internal thread cutting device, which comprises a workbench 1 and a main shaft 2, wherein the main shaft 2 is vertical to the workbench 1, a movable base 3 is arranged on the workbench 1, the base 3 comprises two chucks 4 arranged on the opposite surfaces of the two bases 3, a clamp 5 is arranged between the chucks 4, the clamp 5 comprises a fixed plate 51 and positioning seats 52 positioned at two ends of the fixed plate 51, nut bodies 9 are fixed on the fixed plate 51, and at least two nut bodies 9 are fixed on the fixed plate 51. A plurality of products are simultaneously fixed on the fixing plate 51, i.e., the number of products which can be processed at one time, thereby increasing the working efficiency.
The nut body 9 is provided with an end cover 91, the thickness of the fixing plate 51 is smaller than the height of the nut body 9, the fixing plate 51 is provided with a through hole 511 and a screw hole 512, the nut body 9 is arranged in the through hole 511 in a penetrating mode, and the end cover 91 of the nut body 9 is fixed on the fixing plate 51 through the screw 6. At least two through holes 511 are provided, a screw hole 512 is provided between adjacent through holes 511, and the screw 6 presses the end caps 91 of the nut body 9 located at the left and right sides thereof against the fixing plate 51. As shown in fig. 2, the product processed by the processing device is an end cover type ball screw nut, the end cover 91 is used for fixing, and the end covers 91 of two adjacent nut bodies 9 are pressed simultaneously through one screw 6, so that the fixing multipurpose parts are reduced, the product fixing is more compact, and the occupied space is reduced.
The end cover 91 of the nut body 9 is provided with a notch 92, the other end of the nut body 9 is also provided with a notch A921, as shown in fig. 2, the notch 92 and the notch A921 are respectively positioned at two ends of the nut body 9, namely at the front side and the back side of the fixed plate 51, as shown in fig. 3, the notch 92 and the notch A921 are both positioned on the transverse central line of the fixed plate 51, the cutting force is applied on the central line of the fixed plate 51, the force of the fixed plate 51 in the overturning direction of the fixed plate 51 due to the cutting force is reduced, and the stability of the fixed plate 51 is ensured in the cutting process.
The section of the positioning seat 52 is in a step shape, and the end part of the fixing plate 51 is fixed on the step surface of the positioning seat 52 through the screw 6; the thickness of the end portion of the fixing plate 51 is greater than that of the middle position of the fixing plate 51 as shown in fig. 4 to 5.
The chuck 4 can turn over relative to the base 3, preferably 180 degrees (the principle mechanism for implementing the turning over is the prior art, and will not be described here in detail).
The spindle 2 is provided with a milling cutter (not shown) or a screw thread cutter 7, the screw thread cutter 7 comprises a cutter column 71 and a cutter core 72, the cutter column 71 is fixedly connected with the spindle 2, the lower end of the cutter column 71 is provided with a concave surface 711, the concave surface 711 is provided with a groove 712, and the cutter core 72 is fixed in the groove 712 through a nail 70.
The cutter core 72 is in a triangle shape, the shape of the groove 712 is consistent with that of the cutter core 72, and the working end of the cutter core 72 extends out of the cutter post 71.
The side surface of the base 3 is provided with a groove 31 and a fixing notch 32, and the fixing notch 32 is communicated with the groove 32 and is vertical to the groove 32; the workbench 1 consists of strip-shaped pieces 11 which are arranged in parallel, a gap 12 is arranged between adjacent strip-shaped pieces 11, and the fixing notch 32 is opposite to the gap 12; the base 3 is fixedly connected to the working fixture 1 by means of bolts 8, which bolts 8 are arranged through the fixing recesses 32 and the gaps 12. As shown in fig. 5, the arrangement of the groove 31 and the fixing notch 32 enables the bolts 8 to be installed in a 'hidden' manner, so that the whole structure is simple, and the occupied space is reduced; the strip-shaped pieces 11 form a workbench, the bases 3 can transversely move along the strip-shaped pieces 11, and further the distance between the two bases 3 is adjusted, so that the application range is enlarged.
Specifically, as shown in fig. 2, firstly, a product (nut body 9) is fixed on a fixing plate 51, a plurality of products are respectively placed in corresponding through holes 511, the diameter of the through holes 511 is smaller than that of end covers 91, then the end covers 91 of the nut body 9 are fixed on the fixing plate 51 through screws 6, and one screw 6 presses two adjacent end covers 91; after (combining with numerical control programming), the spindle 2 controls the threading tool 7 to process the internal thread 93 on the inner wall of the product, and the device is suitable for large-pitch processing of the ball screw nut body 9, namely, the pitch range of the internal thread 93 processed in the mode is larger than that of the internal thread which can be turned by a common lathe; then the main shaft 2 is changed into a cutter (a milling cutter is changed, not shown in the figure) to process the notch 92; the chuck 4 then drives the fixing plate 51 to turn 180, the other end of the product faces the spindle 2, and a notch a921 at the other end of the product is machined. All the above procedures are sequentially processed and arranged on the fixed plate 51, one-time positioning of the products is realized, all the processing is completed, and the products can be processed as a group (a group of products are fixed on the fixed plate 51), so that the traditional process is updated, the operation efficiency is greatly improved, and the stable product quality is ensured.
The operation of the main shaft is the same as the main shaft of a numerically controlled milling machine, the workbench 1 is arranged on a sliding table (not shown in the figure, which is conventional), and the whole processing device is completed in numerically controlled processing.
The utility model effectively solves the problems that the quality of a processed product is unstable due to the fact that two devices are needed to be used for clamping and positioning for many times in the processing of the internal threads 93 and the notches 92 on the nut body 9 of the existing ball screw, and the quality is unstable. The product (namely the nut body 9) is fixed on the milling device for processing, one-time clamping and positioning are realized, the processing of the internal thread of the product, the notch on the front side and the back side of the product, the counter bore and other structures is fully automatically completed by combining programming, the product processing dimension errors caused by repeated disassembly and assembly of the positioning belts are eliminated, the product quality is ensured to be stable, and the operation efficiency is greatly improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above description will be apparent to those of skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.
Claims (9)
1. The utility model provides a cutting device of nut internal thread, includes workstation and main shaft, its characterized in that: the main shaft is perpendicular with the workstation, is equipped with mobilizable base on the workstation, and the base includes two, is equipped with the chuck on the face that two frames are relative, is equipped with anchor clamps between the chuck, anchor clamps include the fixed plate and are located the positioning seat at fixed plate both ends, and the nut body is fixed on the fixed plate, two at least nut bodies are fixed on the fixed plate.
2. A cutting device for internal threads of a nut as defined in claim 1, wherein: the nut body is provided with an end cover, the thickness of the fixing plate is smaller than the height of the nut body, a through hole and a screw hole are formed in the fixing plate, the nut body is arranged in the through hole in a penetrating mode, and the end cover of the nut body is fixed on the fixing plate through a screw.
3. A cutting device for internal threads of a nut as defined in claim 2, wherein: at least two through holes are formed, a screw hole is formed between every two adjacent through holes, and the screw presses the end covers of the nut body positioned on the left side and the right side of the screw hole on the fixing plate.
4. A cutting device for internal threads of a nut as defined in claim 2, wherein: the end cover of the nut body is provided with a notch, and the position of the notch is positioned on the transverse central line of the fixing plate.
5. A cutting device for internal threads of a nut as defined in claim 1, wherein: the section of the positioning seat is in a step shape, and the end part of the fixing plate is fixed on the step surface of the positioning seat through a screw; the thickness of the end part of the fixing plate is larger than that of the middle part of the fixing plate.
6. A cutting device for internal threads of a nut as defined in claim 1, wherein: the chuck can turn over relative to the machine base.
7. A cutting device for internal threads of a nut as defined in claim 1, wherein: the milling cutter or the thread cutter is arranged on the main shaft, the thread cutter consists of a cutter column and a cutter core, the cutter column is fixedly connected with the main shaft, a concave surface is arranged at the lower end of the cutter column, a groove is arranged on the concave surface, and the cutter core is fixed in the groove through a nail.
8. A nut internal thread cutting apparatus as defined in claim 7, wherein: the cutter core is triangular, the shape of the groove is consistent with that of the cutter core, and the working end of the cutter core extends out of the cutter column.
9. A cutting device for internal threads of a nut as defined in claim 1, wherein: the side surface of the base is provided with a groove and a fixing notch, and the fixing notch is communicated with the groove and is vertical to the groove; the workbench consists of strip-shaped pieces which are arranged in parallel, a gap is arranged between every two adjacent strip-shaped pieces, and the fixing notch is opposite to the gap; the base is fixedly connected with the work through bolts, and the bolts penetrate through the fixing gaps and the gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322243619.2U CN220547729U (en) | 2023-08-21 | 2023-08-21 | Cutting device for internal threads of nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322243619.2U CN220547729U (en) | 2023-08-21 | 2023-08-21 | Cutting device for internal threads of nuts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220547729U true CN220547729U (en) | 2024-03-01 |
Family
ID=90005075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322243619.2U Active CN220547729U (en) | 2023-08-21 | 2023-08-21 | Cutting device for internal threads of nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220547729U (en) |
-
2023
- 2023-08-21 CN CN202322243619.2U patent/CN220547729U/en active Active
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