CN110842122A - Method for prolonging service life of thread rolling device and thread rolling device - Google Patents
Method for prolonging service life of thread rolling device and thread rolling device Download PDFInfo
- Publication number
- CN110842122A CN110842122A CN201911182745.3A CN201911182745A CN110842122A CN 110842122 A CN110842122 A CN 110842122A CN 201911182745 A CN201911182745 A CN 201911182745A CN 110842122 A CN110842122 A CN 110842122A
- Authority
- CN
- China
- Prior art keywords
- thread rolling
- rolling wheel
- frame
- wheel
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a method for prolonging the service life of a thread rolling device, which comprises a left thread rolling wheel and a right thread rolling wheel, wherein two endpoints of spiral teeth of the left thread rolling wheel and the right thread rolling wheel are respectively a starting point and an end point, the endpoint of the spiral teeth of the left thread rolling wheel and the right thread rolling wheel, which is firstly contacted with a rod piece product to be processed, is a processing zero point, and the starting point and the end point of the spiral teeth of the left thread rolling wheel and the right thread rolling wheel are sequentially used as processing zero point processing rod piece products; and when the starting point and the end point of the spiral tooth are worn and damaged, the left thread rolling wheel and the right thread rolling wheel are scrapped. Compared with the prior art, the invention has the advantages of long service life, high mold utilization rate, low investment cost and the like.
Description
Technical Field
The invention relates to the technical field of thread rolling processing, in particular to a method for prolonging the service life of a thread rolling device and the thread rolling device.
Background
The thread rolling die is a highly-formed die, has high production efficiency and is relatively stable, and is the most prominent place for the thread rolling process. The method has the advantages that the traditional machining turning process is replaced by the thread rolling process to a great extent, but the thread rolling die is expensive, and the quality of a processed product cannot be guaranteed once the service life is reached, so that the service life of the thread rolling die is the core point of the thread rolling process, and means such as adding various coatings, replacing die materials, changing die hardness by heat treatment and the like appear in the market for prolonging the service life of the thread rolling die, but the service life of the die can only be relatively prolonged, and a long way is left for really prolonging the service life of the die.
Disclosure of Invention
The invention aims to overcome the defect of short service life of a thread rolling die in the prior art and provide a method for prolonging the service life of a thread rolling device and the thread rolling device.
The purpose of the invention can be realized by the following technical scheme:
a method for prolonging the service life of a thread rolling device comprises a left thread rolling wheel and a right thread rolling wheel, wherein two end points of spiral teeth of the left thread rolling wheel and the right thread rolling wheel are respectively a starting point and an end point, the end point of the spiral teeth of the left thread rolling wheel and the right thread rolling wheel which is firstly contacted with a rod piece product to be processed is a processing zero point,
the starting point and the end point of the spiral teeth of the left thread rolling wheel and the right thread rolling wheel are sequentially used as processing zero point processing rod piece products; and when the starting point and the end point of the spiral tooth are worn and damaged, the left thread rolling wheel and the right thread rolling wheel are scrapped.
In practical use, the invention finds that the contact starting point of the spiral teeth of the thread rolling wheel and the rod-shaped workpiece to be processed (namely the zero point of the thread rolling wheel) is easily worn, the wear is serious, and the tail part of the spiral teeth of the thread rolling wheel is less worn; and the completeness of the spiral teeth at the starting point of the thread rolling wheel is very important for the finally processed product, and along the advancing direction of the workpiece to be processed, the spiral teeth at the tail part or the rear part of the thread rolling wheel have little influence on the precision of the finally processed product. Based on the two findings, the invention thinks that when the starting point of the spiral tooth of the thread rolling die in the device is damaged, the thread rolling die is turned over by 180 degrees, the starting point and the end point of the spiral tooth are exchanged, the end point which is not worn is used as a new starting point to process the product, and the product with qualified precision can still be produced. In order to realize the idea, the invention is provided with two feeding propulsion devices on the original thread rolling device, so that the starting point and the end point of the spiral teeth of the thread rolling wheel can be used as the processing zero point of the thread rolling screw to be firstly acted with a product to be processed, thus the service life of the thread rolling wheel is greatly prolonged, and the service life is 2 times of the original service life under the general condition.
And when the starting points are worn and damaged, the end points of the spiral teeth of the left thread rolling wheel and the right thread rolling wheel are used as processing zero points to process the rod piece product.
The invention also provides a long-life thread rolling device capable of realizing the method, which comprises a rack and a thread rolling mechanism arranged on the rack, wherein the thread rolling mechanism comprises a left thread rolling wheel frame and a right thread rolling wheel frame which are arranged on the rack, a left thread rolling wheel arranged on the left thread rolling wheel frame and a right thread rolling wheel arranged on the right thread rolling wheel frame; two sets of feeding and propelling mechanisms are respectively arranged on two sides of the edges of the left thread rolling wheel frame and the right thread rolling wheel frame; the feeding and propelling mechanism comprises a support frame and a material pushing cylinder which are arranged on the rack, a rod piece product to be processed is arranged on the support frame, and the end part of the rod piece product is connected with the output end of the material pushing cylinder.
The support frame is including locating add on the frame and locate the member product rack on adding the piece, be equipped with V type recess on the member product rack.
At least one of the left thread rolling wheel frame and the right thread rolling wheel frame is arranged on a sliding mechanism, and the sliding mechanism drives the thread rolling wheel frame to move in a translation mode to change the distance between the left thread rolling wheel frame and the right thread rolling wheel frame.
The sliding mechanism comprises a sliding rail arranged on the rack, a sliding block arranged on the thread rolling wheel carrier and a translation cylinder arranged on the rack, the sliding block is connected with the sliding rail in a sliding manner, the extending direction of the sliding rail is perpendicular to the axial direction of a rod piece product to be processed, and the output end of the translation cylinder is fixedly connected with the sliding block.
The thread rolling mechanism further comprises a driving assembly respectively connected with the left thread rolling wheel and the right thread rolling wheel, and the driving assembly comprises a servo motor, a first driving wheel connected with a rotating shaft of the servo motor, a second driving wheel connected with a rotating shaft of the thread rolling wheel, and a driving belt arranged on the first driving wheel and the second driving wheel.
And spray pipes are respectively arranged right above the contact positions of the left thread rolling wheel and the right thread rolling wheel with rod piece products to be processed, a water inlet pipe of each spray pipe is connected with a water suction pump, and the water suction pumps are communicated with a water supply tank through water supply pipes.
A sewage discharge groove is formed in the working table surface of the rack and is arranged below the left thread rolling wheel and the right thread rolling wheel, and a sewage discharge box is arranged at the water outlet end of the sewage discharge groove.
The output end of the pushing cylinder is fixedly connected with a push plate, and the push plate is in contact connection with the end part of a rod piece product to be processed.
The device of the invention is used as follows:
the rod piece product to be processed is placed on the V-shaped groove, the pushing cylinder on one side pushes the rod piece product forwards along the extending direction of the V-shaped groove, and the V-shaped groove has a guiding effect and can ensure that the rod piece product moves forwards. The left thread rolling wheel and the right thread rolling wheel rotate in the same left direction and perform opposite feed motion in the horizontal direction simultaneously to extrude and roll threads on a product to obtain a threaded product; when the fact that the abrasion degree of the spiral tooth starting point of the thread rolling wheel is too large to cause that the machining precision of the machined part cannot meet the requirement is found, the material pushing cylinder of the feeding and pushing mechanism on the other side is started to feed, so that the tail part of the spiral tooth of the thread rolling wheel becomes a new machining zero point, the rod piece product to be machined is continuously used for thread rolling, and the thread rolling die is scrapped until the new machining zero point is abraded to meet the production requirement.
Compared with the prior art, the invention has the following advantages:
(1) by designing two sets of feeding and propelling mechanisms, the starting point and the end point of the spiral tooth can be the processing zero point, compared with a thread rolling die in the original device, the service life of the thread rolling die is prolonged by 2 times, and the actual service life of the die is obviously prolonged;
(2) the thread rolling die with the changed processing zero point can not generate unstable factors on products, the utilization rate of the die is improved, and the input cost of the die is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
in the figure, 1 is a frame, 2 is a left thread rolling wheel frame, 3 is a right thread rolling wheel frame, 4 is a left thread rolling wheel, 5 is a right thread rolling wheel, 6 is a support frame, 7 is a transmission belt, 8 is a translation cylinder, 9 is a servo motor, 10 is a first transmission wheel, 11 is a second transmission wheel, and 12 is a feeding propulsion mechanism.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
A method for prolonging the service life of a thread rolling device comprises a left thread rolling wheel 4 and a right thread rolling wheel 5, wherein two endpoints of spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 are respectively a starting point and an end point, the endpoint of the first contact between the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 and a rod piece product to be processed is a processing zero point, and the starting point and the end point of the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 are sequentially used as the processing zero point to process the rod piece product; when the starting point and the end point of the spiral teeth are worn and damaged, the left thread rolling wheel 4 and the right thread rolling wheel 5 are scrapped. Generally, for convenience of operation, the starting point of the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 is used as a processing zero point to process a rod product, and when the starting point is worn and damaged, the end point of the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 is used as a processing zero point to process the rod product. Because the left thread rolling wheel 4 and the right thread rolling wheel 5 are generally detachable devices, when the starting points of the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 are seriously worn and cannot be used continuously, the left thread rolling wheel 4 and the right thread rolling wheel 5 are detached and turned over for 180 degrees, the starting points and the end points of the spiral teeth of the left thread rolling wheel 4 and the right thread rolling wheel 5 are exchanged, and the original feeding propulsion device is adopted to send a rod piece product to be processed into the thread rolling wheels for processing without changing the entering direction of the product.
Example 2
The embodiment provides a device capable of implementing the method in embodiment 1, specifically a long-life thread rolling device, as shown in fig. 1, including a frame 1 and a thread rolling mechanism disposed on the frame 1, where the thread rolling mechanism includes a left thread rolling wheel frame 2 and a right thread rolling wheel frame 3 disposed on the frame 1, a left thread rolling wheel 4 disposed on the left thread rolling wheel frame 2, a right thread rolling wheel 5 disposed on the right thread rolling wheel frame 3, and driving components respectively connected to the left thread rolling wheel 4 and the right thread rolling wheel 5, where the driving components include a servo motor 9, a first driving wheel 10 connected to a rotation shaft of the servo motor 9, a second driving wheel 11 connected to the rotation shaft of the thread rolling wheel, and a driving belt mounted on the first driving wheel 10 and the second driving wheel 11. The right thread rolling wheel frame 3 is installed on a sliding mechanism, the sliding mechanism drives the thread rolling wheel frame to move in a translational mode to change the distance between the left thread rolling wheel frame 2 and the right thread rolling wheel frame 3, the sliding mechanism comprises a sliding rail arranged on the rack 1, a sliding block arranged on the thread rolling wheel frame and a translation cylinder 8 arranged on the rack 1, the sliding block is connected with the sliding rail in a sliding mode, the extending direction of the sliding rail is perpendicular to the axial direction of a rod piece product to be processed, and the output end of the translation cylinder 8 is fixedly connected with the sliding block.
In the device of the embodiment, the thread rolling mechanism is respectively provided with two sets of feeding and propelling mechanisms 12, specifically, two sides of the left thread rolling wheel frame 2 and the right thread rolling wheel frame 3 are respectively provided with two sets of feeding and propelling mechanisms 12; the starting point and the end point of the helical teeth of the thread rolling wheel can thus be used as a processing zero point to first come into contact with the rod product to be processed. The feeding and propelling mechanism 12 comprises a support frame 6 and a material pushing cylinder which are arranged on the frame 1, a rod piece product to be processed is arranged on the support frame 6, the end part of the rod piece product is connected with the output end of the material pushing cylinder, the output end of the material pushing cylinder is fixedly connected with a push plate, and the push plate is in contact connection with the end part of the rod piece product to be processed; the support frame 6 comprises a heightening piece arranged on the frame 1 and a rod piece product placing frame arranged on the heightening piece, and a V-shaped groove is formed in the rod piece product placing frame.
In order to improve the cooling effect, spraying pipes are respectively arranged right above the contact positions of the left thread rolling wheel 4 and the right thread rolling wheel 5 and the rod piece product to be processed, a water inlet pipe of each spraying pipe is connected with a water suction pump, and the water suction pumps are communicated with a water supply tank through water supply pipes. A sewage discharge groove is formed in the working table surface of the machine frame 1 and is arranged below the left thread rolling wheel 4 and the right thread rolling wheel 5, and a sewage discharge box is arranged at the water outlet end of the sewage discharge groove.
The use process of the device of the embodiment is as follows:
the rod piece product to be processed is placed on the V-shaped groove, the pushing cylinder on one side pushes the rod piece product forwards along the extending direction of the V-shaped groove, and the V-shaped groove has a guiding effect and can ensure that the rod piece product moves forwards. The left thread rolling wheel and the right thread rolling wheel rotate in the same left direction and perform opposite feed motion in the horizontal direction simultaneously to extrude and roll threads on a product to obtain a threaded product; when the fact that the abrasion degree of the spiral tooth starting point of the thread rolling wheel is too large to cause that the machining precision of the machined part cannot meet the requirement is found, the material pushing cylinder of the feeding and pushing mechanism on the other side is started to feed, so that the tail part of the spiral tooth of the thread rolling wheel becomes a new machining zero point, the rod piece product to be machined is continuously used for thread rolling, and the thread rolling die is scrapped until the new machining zero point is abraded to meet the production requirement.
The device of the embodiment can change the mode that the thread rolling die at the zero point of contact with the workpiece rotates in the same direction by taking the new zero point as a starting point, and simultaneously performs opposite feeding motion in the horizontal direction to extrude and roll threads on the product. The condition that the die is scrapped when the die reaches the service life is avoided by changing the thread rolling die at the processing zero point, and the actual service life of the die is obviously prolonged; and the thread rolling die at the processing zero point is changed, unstable factors cannot be generated on the product, the utilization rate of the die is improved, and the investment cost of the die is reduced.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A method for prolonging the service life of a thread rolling device, the thread rolling device comprises a left thread rolling wheel (4) and a right thread rolling wheel (5), two endpoints of spiral teeth of the left thread rolling wheel (4) and the right thread rolling wheel (5) are respectively a starting point and an end point, and the endpoint of the spiral teeth of the left thread rolling wheel (4) and the right thread rolling wheel (5) which is firstly contacted with a rod piece product to be processed is a processing zero point,
the starting point and the end point of the spiral teeth of the left thread rolling wheel (4) and the right thread rolling wheel (5) are sequentially used as processing zero point processing rod piece products; when the starting point and the end point of the spiral gear are worn and damaged, the left thread rolling wheel (4) and the right thread rolling wheel (5) are scrapped.
2. The method for extending the service life of a thread rolling device according to claim 1, wherein the starting point of the spiral teeth of the left thread rolling wheel (4) and the right thread rolling wheel (5) is used as a processing zero point to process a rod product, and when the starting point is worn and damaged, the end point of the spiral teeth of the left thread rolling wheel (4) and the right thread rolling wheel (5) is used as a processing zero point to process the rod product.
3. The long-life thread rolling device used in the method according to claim 1, comprising a frame (1) and a thread rolling mechanism provided on the frame (1), the thread rolling mechanism comprising a left thread rolling wheel carrier (2) and a right thread rolling wheel carrier (3) provided on the frame (1), a left thread rolling wheel (4) provided on the left thread rolling wheel carrier (2), and a right thread rolling wheel (5) provided on the right thread rolling wheel carrier (3); two sets of feeding propulsion mechanisms are respectively arranged on two sides of the edge of the left thread rolling wheel frame (2) and the right thread rolling wheel frame (3); the feeding and propelling mechanism comprises a support frame (6) and a material pushing cylinder which are arranged on the rack (1), a rod piece product to be processed is arranged on the support frame (6), and the end part of the rod piece product is connected with the output end of the material pushing cylinder.
4. The long-life thread rolling device according to claim 3, wherein the support frame (6) comprises an heightening piece arranged on the frame (1) and a rod product placing frame arranged on the heightening piece, and the rod product placing frame is provided with a V-shaped groove.
5. A long life screw rolling device according to claim 3, wherein at least one of the left screw roller frame (2) and the right screw roller frame (3) is mounted on a sliding mechanism which causes the screw roller frame to move in translation to change the distance between the left screw roller frame (2) and the right screw roller frame (3).
6. The long-life thread rolling device according to claim 5, wherein the sliding mechanism comprises a sliding rail arranged on the frame (1), a sliding block arranged on the thread rolling wheel frame and a translation cylinder (8) arranged on the frame (1), the sliding block and the sliding rail are connected in a sliding manner, the extending direction of the sliding rail is perpendicular to the axial direction of the rod piece product to be processed, and the output end of the translation cylinder (8) is fixedly connected with the sliding block.
7. A long-life thread rolling device according to claim 3, wherein said thread rolling mechanism further comprises driving means connected to said left thread rolling wheel (4) and said right thread rolling wheel (5), respectively, said driving means comprising a servo motor (9), a first driving wheel (10) connected to the rotational shaft of said servo motor (9), a second driving wheel (11) connected to the rotational shaft of said thread rolling wheels, and a driving belt mounted on said first driving wheel (10) and said second driving wheel (11).
8. The long-life thread rolling device according to claim 3, wherein a shower pipe is provided directly above the position where the left thread rolling wheel (4) and the right thread rolling wheel (5) are in contact with the bar product to be processed, respectively, and a suction pump is connected to a water inlet pipe of the shower pipe, and the suction pump is communicated with a water supply tank through a water supply pipe.
9. The long-life thread rolling device according to claim 3, wherein a sewage draining groove is formed in the working table surface of the machine frame (1), the sewage draining groove is arranged below the left thread rolling wheel (4) and the right thread rolling wheel (5), and a sewage draining tank is arranged at the water outlet end of the sewage draining groove.
10. The long-life thread rolling device according to claim 3, wherein the output end of the pushing cylinder is fixedly connected with a push plate, and the push plate is in contact connection with the end of the rod product to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182745.3A CN110842122A (en) | 2019-11-27 | 2019-11-27 | Method for prolonging service life of thread rolling device and thread rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182745.3A CN110842122A (en) | 2019-11-27 | 2019-11-27 | Method for prolonging service life of thread rolling device and thread rolling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110842122A true CN110842122A (en) | 2020-02-28 |
Family
ID=69605312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911182745.3A Pending CN110842122A (en) | 2019-11-27 | 2019-11-27 | Method for prolonging service life of thread rolling device and thread rolling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110842122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570607A (en) * | 2020-12-11 | 2021-03-30 | 刘丽荣 | Thread rolling device for industrial round pipe |
-
2019
- 2019-11-27 CN CN201911182745.3A patent/CN110842122A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570607A (en) * | 2020-12-11 | 2021-03-30 | 刘丽荣 | Thread rolling device for industrial round pipe |
| CN112570607B (en) * | 2020-12-11 | 2024-01-05 | 太谷县昌泰丰特种铸钢有限公司 | Be used for industry pipe thread rolling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103071868B (en) | Nut rolling way electric machining process and lathe | |
| CN107303646B (en) | A kind of square tube deburring device | |
| CN204075990U (en) | A kind of stone polishing device | |
| CN104149001A (en) | Two-sided grinder | |
| CN105458873A (en) | Opposite grinding device for double-face abrasive belt | |
| CN203592402U (en) | Grinding wheel protecting mechanism of machine for grinding end face of outer ring of bearing | |
| CN211218499U (en) | Long-life thread rolling device | |
| CN110842122A (en) | Method for prolonging service life of thread rolling device and thread rolling device | |
| CN209901570U (en) | Paint spraying apparatus is used in body-building apparatus processing | |
| CN100493840C (en) | Circular saw blade profile centerless grinding machine and method for centerless grinding for circular saw blade profile | |
| CN113352217B (en) | Product surface design processing apparatus | |
| CN210938660U (en) | Polishing roller for linear hydraulic polishing | |
| CN203956657U (en) | A kind of double face abrading machine | |
| CN117245406A (en) | Stainless steel bolt piece manufacturing device | |
| CN106734424A (en) | A kind of both sides rotary extrusion type S-shaped bar bending mechanism | |
| CN207982463U (en) | A kind of helical teeth machining tool | |
| CN207431941U (en) | A kind of simple belt sander of lathe | |
| CN204221614U (en) | Trailing type crankshaft grinding machine with double grinding carriages packaged type CBN dresser | |
| CN2915364Y (en) | Paralled surface grinding machine | |
| CN205685145U (en) | A kind of vertical grinder mechanism | |
| CN1275751C (en) | Dry processing method for ceramic brick and a dry edging and bevelling machine | |
| CN204604009U (en) | Change gear box overlap removal device | |
| CN210046432U (en) | Full-automatic roller grinding machine of full-automatic unloading | |
| CN2057878U (en) | Planetary screw rolling machine | |
| CN220660220U (en) | Groove wedge chamfering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200228 |
|
| WD01 | Invention patent application deemed withdrawn after publication |