CN110788262A - Large-pitch internal thread surface forming device for thin-wall part - Google Patents
Large-pitch internal thread surface forming device for thin-wall part Download PDFInfo
- Publication number
- CN110788262A CN110788262A CN201910785925.4A CN201910785925A CN110788262A CN 110788262 A CN110788262 A CN 110788262A CN 201910785925 A CN201910785925 A CN 201910785925A CN 110788262 A CN110788262 A CN 110788262A
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- China
- Prior art keywords
- forming
- screw rod
- rolling
- internal thread
- thin
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Classifications
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- 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
- B21H3/042—Thread-rolling heads
- B21H3/048—Thread-rolling heads working tangentially
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- 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
- B21H9/00—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
- B21H9/02—Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass for screw-rolling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a large-pitch internal thread surface forming device for thin-wall parts, which rolls internal threads on the outer side of a workpiece in a rolling way and comprises the following components: the positioning feeding mechanism and the rolling mechanism are arranged on the side surface of the fixed forming support, and the rolling mechanism is vertical to the positioning feeding mechanism; the device of the invention has the advantages of easily controlling the size precision of the thread, reducing the forming difficulty, reducing the joint marks of the thread surface in sections caused by manual control, causing the internal thread surface to be not smooth enough, improving the production efficiency through automatic feeding, protecting the safety of workers, improving the automation degree, further improving the production efficiency, ensuring the safety of the workers, reducing the joint marks of the section punching press and ensuring the product quality because the thread surface is smooth.
Description
Technical Field
The invention relates to a rolling device, in particular to a large-pitch internal thread surface forming device for a thin-wall part.
Background
The oil tank is a special container for storing hydraulic oil or hydraulic liquid in a hydraulic system, and can be divided into an open oil tank and a closed oil tank. The tank must have a sufficiently large volume; the oil suction pipe and the oil return pipe are inserted below the lowest liquid level to prevent air suction and oil return splashing to generate bubbles; the oil tank is provided with an oil tank cover, the oil tank cover is installed with the threads of the oil tank, the installation position of the oil tank cover and the oil tank is a thin-wall part, and the internal threads of the thin-wall part are formed by rolling through rolling equipment;
at present, the rolling process is conventionally adopted for rolling and forming the inner thread surface of a thin-wall part, but the rolling mode of the large-pitch inner thread has large deformation, the dimensional accuracy is not easy to guarantee, and the forming is difficult; generally, the sectional rolling process is adopted for forming, but sectional joint marks exist on a thread surface, an internal thread surface is not smooth enough, the thread precision cannot easily meet the use requirement, and meanwhile, due to manual rotary feeding, the production efficiency is low, and potential safety hazards exist in operation.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the defects in the prior art, and provides a device for forming a large-pitch internal thread surface of a thin-wall part, which changes a rolling structure and solves the problems.
The technical scheme is as follows: the invention relates to a large-pitch internal thread surface forming device for a thin-wall part, which rolls internal threads on the outer side of a workpiece in a rolling way and comprises the following components: the positioning feeding mechanism and the rolling mechanism are arranged on the side surface of the fixed forming support, and the rolling mechanism is vertical to the positioning feeding mechanism;
the fixed forming support is of a frame structure, a forming core rod, a screw rod fixing plate and a guide partition plate are arranged on the inner side of the fixed forming support, the forming core rod is axially overlapped with the positioning and feeding mechanism, threads are arranged on the forming core rod, a screw rod threaded hole is formed in the screw rod fixing plate, and a guide hole is formed in the guide partition plate;
the location feed mechanism mainly comprises screw rod mechanism and servo motor, and the location feed mechanism includes: the servo motor is connected with the screw rod through the gear mechanism, the screw rod mechanism is installed in a threaded hole of a screw rod fixing plate in the fixed forming support, and the clamping and positioning block is installed at the end part of the screw rod;
the rolling mechanism consists of a hydraulic cylinder and a rolling forming block, the rolling forming block is slidably mounted in a guide hole in the guide partition plate, and the moving direction of the rolling forming block is perpendicular to a thread part on the forming core rod.
Further, the thread of the forming core rod is the same as the thread pitch of the surface of the product.
Furthermore, the gear mechanism is composed of a driving gear and a driven gear, the driving gear is installed on an output shaft of the servo motor, the driven gear is installed on the screw rod, and the thickness of the driven gear is larger than the moving distance of the clamping and positioning block.
Furthermore, the clamping and positioning block is a cylinder, a counter bore is formed in the center of one end of the clamping and positioning block and is matched and positioned with the outer circular surface of the product, and the center of the other end of the clamping and positioning block is connected with the threaded rod.
Furthermore, the thickness of the end part of the clamping and positioning block is smaller than or equal to the pitch of the thread pitch on the forming core rod.
Furthermore, the fixed forming support is matched with the rolling mechanism to realize the thread forming of the product.
Furthermore, the fixed forming support and the positioning feeding mechanism realize the control of the distance between the continuous threads on the product and the threads.
Has the advantages that: according to the forming device for the large-pitch internal thread surface of the thin-wall part, disclosed by the invention, automatic feeding is realized by matching the positioning feeding mechanism, the fixed forming support and the rolling mechanism, so that the size precision of threads is easy to control, the forming difficulty is reduced, the joint marks of the thread surface in sections caused by manual control are reduced, the internal thread surface is not smooth enough, the production efficiency is improved by automatic feeding, the safety of workers is protected, the automation degree is improved, the production efficiency is further improved, the safety of the workers is ensured, the sectional stamping joint marks are reduced, the thread surface is smooth, and the quality of products is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is a left side sectional view of the drawing;
1. the device comprises a fixed forming support 11, a forming core rod 12, a screw rod fixing plate 13, a guide partition plate 2, a positioning and feeding mechanism 21, a servo motor 22, a gear mechanism 221, a driving gear 222, a driven gear 23, a screw rod 24, a clamping and positioning block 3, a rolling mechanism 31, a hydraulic cylinder 32 and a rolling forming block.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following specific examples.
As shown in fig. 1 to 3, a forming device for a large-pitch internal thread surface of a thin-wall part, wherein the forming device rolls internal threads on the outer side of a workpiece in a rolling manner, comprises: the device comprises a positioning feeding mechanism 2, a fixed forming support 1 and a rolling mechanism 3, wherein the positioning feeding mechanism 2 and the rolling mechanism 3 are arranged on the side surface of the fixed forming support 1, and the rolling mechanism 3 is vertical to the positioning feeding mechanism 2;
the fixed forming support 1 is of a frame structure, a forming core rod 11, a screw rod 23 fixing plate 12 and a guide partition plate 13 are arranged on the inner side of the fixed forming support 1, the forming core rod 11 is axially overlapped with the positioning and feeding mechanism 2, threads are arranged on the forming core rod 11, a screw rod 23 threaded hole is formed in the screw rod 23 fixing plate 12, and a guide hole is formed in the guide partition plate 13;
the positioning and feeding mechanism 2 mainly comprises a screw 23 mechanism and a servo motor 21, and the positioning and feeding mechanism 2 comprises: the device comprises a servo motor 21, a gear mechanism 22, a screw rod 23 and a clamping and positioning block 24, wherein the servo motor 21 is connected with the screw rod 23 through the gear mechanism 22, the screw rod 23 mechanism is installed in a threaded hole of a screw rod 23 fixing plate 12 in a fixed forming support 1, and the clamping and positioning block 24 is installed at the end part of the screw rod 23;
the rolling mechanism 3 is composed of a hydraulic cylinder 31 and a rolling forming block 32, the rolling forming block 32 is slidably mounted in a guide hole on the guide partition plate 13, and the moving direction of the rolling forming block 32 is perpendicular to the thread part on the forming core rod 11.
The servo motor 21 is installed on the outer side of the fixed forming support 1, the gear mechanism 22 is installed between the fixed forming support 1 and the lead screw 23 fixing plate 12, the minimum distance between the driven gear 222 and the lead screw 23 fixing plate 12 is equal to the maximum feeding distance of the clamping positioning block 24, and the hydraulic cylinder 31 is installed on the outer side of the fixed forming support 1.
Preferably, the thread of the forming mandrel 11 is the same as the pitch of the product surface to be formed.
Preferably, the gear mechanism 22 is composed of a driving gear 221 and a driven gear 222, the driving gear 221 is installed on an output shaft of the servo motor 21, the driven gear 222 is installed on the screw rod 23, and the thickness of the driven gear 222 is larger than the moving distance of the clamping and positioning block 24.
Preferably, the clamping and positioning block 24 is a cylinder, a counter bore is formed in the center of one end of the clamping and positioning block and is matched and positioned with the outer circular surface of the product, and the center of the other end of the clamping and positioning block 24 is connected with a threaded rod.
Preferably, the thickness of the end of the clamping and positioning block 24 is smaller than or equal to the pitch of the thread pitch on the forming mandrel 11.
Preferably, the fixed forming support 1 is matched with the rolling mechanism 3 to realize the thread forming of the product.
Preferably, the fixed forming support 1 and the positioning and feeding mechanism 2 realize the control of the continuous and distance between the threads on the product.
A workpiece is arranged in a counter bore in a clamping and positioning block 24, a product is clamped and positioned by a positioning and feeding mechanism 2, a screw rod 23 is controlled by a servo motor 21 to be fed linearly, the product synchronously rotates by a corresponding angle according to the requirement of a screw pitch in the feeding process, a signal is given to a pressure forming mechanism after the product is fed in place, a rolling mechanism 3 controls a hydraulic cylinder 31 to drive a rolling forming block 32 to move to press a corresponding forming thread surface of the product, the product returns after the product is in place, a signal is given to a positioning and feeding combination after the product returns to place, and the next cycle is continued; after the preset circulation is finished, the positioning feeding combination returns to the initial position to take out the product, and the next product is put in.
The automatic feeding is realized by matching the positioning feeding mechanism, the fixed forming support and the rolling mechanism, so that the size precision of the thread is easy to control, the forming difficulty is reduced, the joint marks of the thread surface in sections caused by manual control are reduced, the internal thread surface is not smooth enough, the production efficiency is improved by automatic feeding, the safety of workers is protected, the automation degree is improved, the production efficiency is further improved, the safety of the workers is ensured, the section stamping joint marks are reduced, the thread surface is smooth, and the quality of products is ensured.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a be used for thin wall spare coarse pitch internal thread face forming device which characterized in that: forming device adopts the roll extrusion mode to roll out the internal thread in the outside of work piece, includes: the positioning feeding mechanism and the rolling mechanism are arranged on the side surface of the fixed forming support, and the rolling mechanism is vertical to the positioning feeding mechanism;
the fixed forming support is of a frame structure, a forming core rod, a screw rod fixing plate and a guide partition plate are arranged on the inner side of the fixed forming support, the forming core rod is axially overlapped with the positioning and feeding mechanism, threads are arranged on the forming core rod, a screw rod threaded hole is formed in the screw rod fixing plate, and a guide hole is formed in the guide partition plate;
the location feed mechanism mainly comprises screw rod mechanism and servo motor, and the location feed mechanism includes: the servo motor is connected with the screw rod through the gear mechanism, the screw rod mechanism is installed in a threaded hole of a screw rod fixing plate in the fixed forming support, and the clamping and positioning block is installed at the end part of the screw rod;
the rolling mechanism consists of a hydraulic cylinder and a rolling forming block, the rolling forming block is slidably mounted in a guide hole in the guide partition plate, and the moving direction of the rolling forming block is perpendicular to a thread part on the forming core rod.
2. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: the thread of the forming core rod is the same as the thread pitch of the surface of the product.
3. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: the gear mechanism is composed of a driving gear and a driven gear, the driving gear is installed on an output shaft of the servo motor, the driven gear is installed on the screw rod, and the thickness of the driven gear is larger than the moving distance of the clamping and positioning block.
4. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: the clamping and positioning block is a cylinder, a counter bore is formed in the center of one end of the clamping and positioning block and is matched and positioned with the outer circular surface of a product, and the center of the other end of the clamping and positioning block is connected with the threaded rod.
5. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: the thickness of the end part of the clamping and positioning block is smaller than or equal to the pitch of the thread pitch on the forming core rod.
6. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: and the fixed forming support is matched with the rolling mechanism to realize the thread forming of the product.
7. The forming device for the coarse-pitch internal thread surface of the thin-wall part according to claim 1, is characterized in that: the fixed forming support and the positioning feeding mechanism realize the control of the distance between the continuous threads on the product and the threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785925.4A CN110788262A (en) | 2019-08-23 | 2019-08-23 | Large-pitch internal thread surface forming device for thin-wall part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785925.4A CN110788262A (en) | 2019-08-23 | 2019-08-23 | Large-pitch internal thread surface forming device for thin-wall part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110788262A true CN110788262A (en) | 2020-02-14 |
Family
ID=69427043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910785925.4A Withdrawn CN110788262A (en) | 2019-08-23 | 2019-08-23 | Large-pitch internal thread surface forming device for thin-wall part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110788262A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187801A (en) * | 2005-01-07 | 2006-07-20 | Jtekt Corp | Raw material for worm, and method for manufacturing worm |
| CN101402126A (en) * | 2008-11-10 | 2009-04-08 | 苏州奥智机电设备有限公司 | Internal ribbed tube molding device |
| CN101559447A (en) * | 2009-05-22 | 2009-10-21 | 姚宁 | Thin wall pipe connector and processing method thereof |
| CN104507614A (en) * | 2012-08-01 | 2015-04-08 | 株式会社Mh中心 | Machining method for female screw and device for same |
| CN108907047A (en) * | 2018-09-14 | 2018-11-30 | 沈阳达益汽车零部件有限公司 | Rotation tooth machine and its processing method for vehicle oil filler |
-
2019
- 2019-08-23 CN CN201910785925.4A patent/CN110788262A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187801A (en) * | 2005-01-07 | 2006-07-20 | Jtekt Corp | Raw material for worm, and method for manufacturing worm |
| CN101402126A (en) * | 2008-11-10 | 2009-04-08 | 苏州奥智机电设备有限公司 | Internal ribbed tube molding device |
| CN101559447A (en) * | 2009-05-22 | 2009-10-21 | 姚宁 | Thin wall pipe connector and processing method thereof |
| CN104507614A (en) * | 2012-08-01 | 2015-04-08 | 株式会社Mh中心 | Machining method for female screw and device for same |
| CN108907047A (en) * | 2018-09-14 | 2018-11-30 | 沈阳达益汽车零部件有限公司 | Rotation tooth machine and its processing method for vehicle oil filler |
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Application publication date: 20200214 |