CN107363294B - Self-boring taper hole device of internal transmission chain - Google Patents
Self-boring taper hole device of internal transmission chain Download PDFInfo
- Publication number
- CN107363294B CN107363294B CN201710587404.9A CN201710587404A CN107363294B CN 107363294 B CN107363294 B CN 107363294B CN 201710587404 A CN201710587404 A CN 201710587404A CN 107363294 B CN107363294 B CN 107363294B
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- China
- Prior art keywords
- bevel gear
- taper hole
- screw
- guide body
- cutter bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/06—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring conical holes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an internal transmission chain self-boring taper hole device, and relates to a device for machining a cutter bar supporting taper hole of a horizontal machine tool. The inner transmission chain self-boring taper hole device comprises a mandrel, a body, a main transmission mechanism and a feeding transmission mechanism; the main transmission mechanism comprises: the cutter bar is provided with a cutting knife in the guide body; the feed transmission mechanism comprises: the driving bevel gear is meshed with the driving bevel gear, the driving bevel gear is provided with a driving wheel at the outer end, and the striking pin arranged on the machine tool base is meshed with the driving wheel.
Description
Technical Field
The invention relates to a device for processing a cutter bar supporting taper hole of a horizontal machine tool.
Background
When the horizontal machine tool is processed by using the cutter bar with the length-diameter ratio exceeding 5 times, the rigidity of the cutter bar can be obviously insufficient, and in order to solve the problem, the cutter bar is limited only by improving the rigidity of the cutter bar, and generally, a cutter bar supporting structure is required to be added to support the taper hole.
The coaxiality of the support taper hole of the support structure and the rotation axis of the machine tool spindle is difficult to process all the time. Conventional solutions typically employ separate processing and then reassembly. Although the machining mode can effectively ensure the form and position tolerance of the hole, the assembly process difficulty is greatly increased, and the coaxiality of the supporting hole and the axis of the main shaft of the machine tool cannot be ensured.
The problems can be solved by adopting an on-line processing mode, namely a post-installation processing mode, but the prior art does not have a structure for processing the supporting taper hole with high precision so as to achieve the related technological requirements.
Disclosure of Invention
The invention aims to provide an internal transmission chain self-boring taper hole structure for ensuring the accuracy requirement of coaxiality between a horizontal machine tool supporting hole and a machine tool spindle axis.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the inner transmission chain self-boring taper hole device comprises a mandrel, a body, a main transmission mechanism and a feeding transmission mechanism, wherein the mandrel is fixedly connected with a horizontal main shaft, and the body is arranged at the outer end of the mandrel; the main transmission mechanism comprises: the cutter bar is provided with a cutting knife, a guide key is arranged in the guide body, and the cutter bar is provided with a longitudinal guide groove matched with the guide key; the feed transmission mechanism comprises: the driving bevel gear is meshed with the driving bevel gear, the driving bevel gear is provided with a driving wheel at the outer end, and the striking pin arranged on the machine tool base is meshed with the driving wheel.
According to the internal transmission chain self-boring taper hole device, the mandrel is fixedly connected with a main shaft of a horizontal machine tool through a pull rod and an end face key, and a main transmission mechanism and a feeding transmission mechanism are arranged in a body shell.
According to the self-boring taper hole device of the inner transmission chain, the rotating shaft is fixed on the body shell, the lower end of the rotating shaft is arranged on a round hole at the inner end of the guide body, the body shell is provided with a circular arc-shaped chute, and the circular arc of the chute takes the central line of the rotating shaft as the circle center.
According to the internal transmission chain self-boring taper hole device, the rotating shaft is a bolt in threaded connection with the body, the lower end of the stud is not threaded, and the positioning body of the guide body is the bolt.
According to the internal transmission chain self-boring taper hole device, the guide body is of a hollow cylindrical structure, the guide key is fixed in the guide body, and the cutting knife is arranged at the outer end of the knife bar through a screw.
According to the internal transmission chain self-boring taper hole device, the screw nut is fixedly arranged in a hole at the tail end of the cutter bar through a screw, the transmission screw penetrates into the cutter bar, the rotating shaft part at the end part of the transmission screw is arranged on the support copper sleeve in the guide body, and thrust ball bearings are arranged at the left end and the right end of the support copper sleeve.
According to the inner transmission chain self-boring taper hole device, a driving bevel gear rotating shaft is vertically arranged on a body through a copper sleeve, and a poking wheel at the outer end is fixedly connected with the driving bevel gear rotating shaft through a flat key and a screw; the driven bevel gear is fixedly connected with the transmission screw rod through a flat key, and is axially fixed through a gland and a screw at the shaft end of the transmission screw rod.
According to the self-boring taper hole device of the inner transmission chain, the striker pin is vertically arranged on the machine tool base through the fixing seat.
According to the self-boring taper hole device of the inner transmission chain, the lower end of the striker is in threaded connection with an adjusting hole on the fixing seat, and the lower end of the striker is also provided with a locking nut.
The invention has the advantages that the main movement of the mandrel transmits power to the driving bevel gear and the driven bevel gear through the thumb wheel, the rotary movement is converted into the linear movement through the transmission screw pair, and the guide body and the body form an axial lead included angle a along the rotary shaft.
The invention can realize taper hole processing, and the rotation axis of the cutter is unified with the axes of the body and the horizontal shaft of the machine tool. The feeding movement of the cutter is attached to the moving structure of the body and the horizontal axis of the machine tool, and the theory and practice can ensure that the axis of the machined taper hole is coaxial with the axes of the body and the horizontal axis of the machine tool.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view taken along B-B of fig. 1.
In the accompanying drawings: 01. a mandrel; 02. A body; 03. A rotation shaft; 04. driven bevel gear
05. Supporting the copper sleeve; 06. a nut; 07. A transmission screw; 08. a guide key;
09. a cutter bar; 10. an end cap; 11. a cutting blade; 12. a guide body; 13. a fixing seat;
14. a striker; 15. a thumb wheel; 16. a copper sleeve; 17. a drive bevel gear; 18. and (5) pressing cover.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
An internal transmission chain self-boring taper hole device comprises a mandrel 1, a body 2, a main transmission mechanism and a feeding transmission mechanism. The spindle 1 is fixedly connected with the horizontal spindle through a pull rod and an end face key, the spindle of the horizontal machine tool rotates to transmit power to the body 2 through the spindle, the body 2 drives the main transmission mechanism to rotate and drives the guide body 12 to rotate, and the guide body 12 drives the cutter bar 9 to rotate through the guide key to form the cutting motion of the cutter of the machine tool. The rotation of the body drives the feeding transmission mechanism to form the axial feeding movement of the cutter. The guide body 12 in the main transmission mechanism can swing along the rotation axis to form an included angle with the axis of the horizontal machine tool, so that the machining of the inner conical hole of the support hole of the horizontal machine tool is realized.
As shown in fig. 2, the main transmission mechanism includes: a rotating shaft 3, a guide body 12, an end cover 10, a cutter bar 9 and a cutter 11. The guide body is matched with the body, the rotating shaft 3 is arranged on the guide body through threads, the lower end of the rotating shaft is arranged in a round hole of the guide body 12, and the guide body 12 can swing and adjust along the rotating shaft. A sliding groove is formed in the body, a bolt is installed on the sliding groove, and the guide body and the body are fixed in position through the inner hexagon bolt, the gasket and the nut of the sliding groove. The cutter bar 9 is arranged in the guide body, the longitudinal guide key 8 is arranged in the outer circle guide groove of the cutter bar, and the cutter bar 9 is matched with the guide body 12. The cutting blade 11 is mounted in the blade square at the front of the cutter bar 9, and the cutting blade 11 is fixedly mounted on the cutter bar 9 by a screw.
The feed transmission mechanism comprises: the device comprises a fixed seat 13, a striker 14, a thumb wheel 16, a copper bush 16, a driving bevel gear 17, a driven bevel gear 4, a supporting copper bush 5, a transmission screw rod 7 and a screw nut 6, and is used for forming axial feeding movement of a cutter. The support copper sleeve 5 is arranged in the hole of the guide body, and the drive bevel gear 17 is fixedly connected with the thumb wheel 15 through a flat key and a screw; the driving bevel gear 17 is meshed with the driven bevel gear 4, and the driven bevel gear is fixedly connected with the transmission screw rod 7 through a flat key. The transmission screw rod 7 is arranged in the guide body through the thrust ball shaft and the supporting copper sleeve 5. The driven bevel gear shaft is axially fixed upwards through a driving screw shaft end gland 18 and a screw. The transmission screw rod 7 and the screw nut 6 form a transmission screw rod pair, the screw nut 6 is fixedly arranged in a hole at the tail end of the cutter bar through a screw, the cutter bar is hollow, and the transmission screw rod 7 penetrates into the cutter bar. The fixed seat 13 is fixedly mounted on the machine tool base, the striker 14 is connected with the fixed seat 13 through threads and nuts, the height of the striker 14 can be adjusted, and the striker 14 is meshed with the thumb wheel 15 for driving the thumb wheel 15.
As shown in fig. 2, the mandrel is fixedly connected with the body through a pin shaft, a chute taking the rotating shaft 3 as a circle center is machined on the body, and the rotating shaft is mounted on the guide body 12 through threads. The rotating shaft passes through the circular hole of the body, and the guide body can conduct angle adjustment along the rotating shaft; after adjustment, the guide body is fixedly connected with the body through a hexagonal bolt, a gasket and a hexagonal nut.
The cutter bar is in sliding fit with the guide body through the guide key 8, and the end cover 10 is fixedly arranged on the outer end face of the guide body 12 through a screw. A felt is arranged between the inner hole of the end cover and the outer circle of the guide body and is used for preventing iron scraps from entering the guide body in the processing process. The cutting knife is locked by a screw at the end part of the knife bar and is arranged in a square hole at the front end of the knife bar.
As shown in fig. 2, the nut is fixedly connected with the cutter bar through a screw and is installed in a hole at one end of the cutter bar. The screw nut and the transmission screw rod form a screw pair, and the support copper bush is arranged in the support hole of the guide body. The end part of the transmission screw rod is fixedly connected with the driven bevel gear through a flat key, a gland 18 and a screw, and the thrust ball shafts on the left side and the right side of the copper sleeve are supported, so that the friction resistance can be reduced. The driven bevel gear is meshed with the driving bevel gear to form a gear transmission pair,
the drive bevel gear passes through a copper sleeve 16 and is fixedly connected with the thumb wheel 15 through a flat key, and the copper sleeve is arranged in the body supporting hole. The driving bevel gear shaft is provided with a shaft retainer ring for preventing the shifting wheel 15 from falling off axially, and the shifting wheel is meshed with the striker pin 14 to form a discontinuous transmission pair. The striker 14 is screw-mounted to the fixing base 13, and the striker 14 is axially adjustable. After adjustment, the striker pin is fixedly connected with the fixing seat through a hexagonal nut.
The spindle rotates to drive the body to rotate through the mandrel, and the static striker 14 drives the shifting wheel 15 to rotate. The shifting wheel rotates along the mandrel for a circle, the striker pin shifts the shifting wheel to rotate one tooth, and then the driving bevel gear 17 is driven to rotate, and the driving bevel gear 17 drives the driven bevel gear 4 to rotate. The driven bevel gear drives the transmission screw rod to rotate, the transmission screw rod and the screw nut form a screw rod pair, the rotation motion of the transmission screw rod is converted into the linear motion of the cutter bar, and the cutter bar drives the cutting knife to linearly move, so that the axial feeding motion of the machine tool knife is formed.
The working process of the self-boring taper hole structure of the inner transmission chain is as follows.
The spindle of the horizontal machine tool rotates to transmit power to the body 2 through the spindle 1, drives the guide body to rotate, and drives the guide body 12 to further drive the cutter bar 9 to rotate, and the cutting knife rotates along with the cutter bar to form the cutting motion of the cutter of the machine tool. The body 2 rotates to drive the thumb wheel 15 to rotate around the axial lead of the horizontal shaft, and the thumb wheel is meshed with the striker. The driving bevel gear 17 is driven to rotate by the rotation of the thumb wheel, and the driven bevel gear 4 drives the transmission screw rod 7 through the engagement of bevel gears. The screw nut 6 is fixed, the rotary motion of the transmission screw rod is converted into the linear motion of the cutter bar, and the cutter bar drives the cutting blade to linearly move to form the axial feeding motion of the tool of the machine tool.
In the structure, the mounting hole of the body is coaxial with the mounting hole of the drive bevel gear, the axis of the rotating shaft 3 is offset relative to the axis of the horizontal shaft of the machine tool, and the axis of the cutter bar 9 and the axis of the horizontal shaft of the machine tool form an included angle a, so that the taper hole of the cutter bar supporting structure is machined.
The application method. Firstly, according to the taper requirement of the boring hole, the included angle between the guide body and the body is adjusted to ensure consistency, and then the device is fixedly connected with the main shaft of the horizontal machine tool through the mandrel. And installing a bracket to be processed, adjusting the reasonable rotating speed of the machine tool, and starting the machine tool. The main shaft of the machine tool drives the device to rotate, the main shaft rotates one circle, and the striker can stir the shifting wheel to rotate one tooth. The number of teeth of the shifting wheel is N, and the transmission ratio of the driving bevel gear to the driven bevel gear is 1:1, namely, the driving screw rotates by 1/N circle. The lead of the transmission screw rod is P, the main shaft rotates for one circle, and the cutting knife advances by P/Nmm; the spindle rotating speed is N, the machining length of the bracket is L, the machining time is L/(P N/N) minutes, the cutter head of the cutter is exposed, and one machining process is finished.
Claims (9)
1. An internal transmission chain self-boring taper hole device is characterized in that: the device comprises a mandrel (1), a body (2), a main transmission mechanism and a feeding transmission mechanism, wherein the mandrel (1) is fixedly connected with a horizontal main shaft, and the body (2) is arranged at the outer end of the mandrel (1);
the main transmission mechanism comprises: the device comprises a rotating shaft (3), a guide body (12) and a cutter bar (9), wherein the guide body (12) is matched with a body (2), the inner end of the guide body (12) is arranged in a shell of the body (2) through the rotating shaft (3), a positioning body arranged in a chute of the body (2) is arranged in the middle of the guide body (12), the cutter bar (9) with a cutting cutter (11) is arranged in the guide body (12), a guide key (8) is arranged in the guide body (12), and a longitudinal guide groove matched with the guide key (8) is formed in the cutter bar (9);
the feed transmission mechanism comprises: the automatic collision device comprises a collision pin (14), a poking wheel (15), a bevel gear, a transmission screw (7) and a screw nut (6), wherein the screw nut (6) is arranged in a hollow cavity at the inner end of a cutter bar (9), the screw nut (6) and the transmission screw (7) form a transmission screw pair, the end part of the transmission screw (7) arranged on a shaft sleeve of a guide body (12) is provided with a driven bevel gear (4), the driven bevel gear (4) is meshed with a driving bevel gear (17) with the poking wheel (15) arranged at the outer end, and the collision pin (14) arranged on a machine tool base is meshed with the poking wheel (15).
2. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the spindle (1) is fixedly connected with a horizontal machine tool spindle through a pull rod and an end face key, and a main transmission mechanism and a feeding transmission mechanism are arranged in a shell of the body (2).
3. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the rotary shaft (3) is fixed on the shell of the body (2), the lower end of the rotary shaft (3) is arranged on a round hole at the inner end of the guide body (12), the shell of the body (2) is provided with a circular arc-shaped chute, and the circular arc of the chute takes the central line of the rotary shaft (3) as the center of a circle.
4. The internal drive train self boring taper hole apparatus as claimed in claim 3, wherein: the rotating shaft (3) is a bolt in threaded connection with the body (2), the lower end of the bolt is not threaded, and the positioning body of the guide body (12) is a bolt.
5. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the guide body (12) is of a hollow cylindrical structure, the guide key (8) is fixed in the guide body (12), and the cutting knife (11) is arranged at the outer end of the knife bar (9) through a screw.
6. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the nut (6) is fixedly arranged in a hole at the tail end of the cutter bar (9) through a screw, the transmission screw (7) penetrates into the cutter bar (9), a rotating shaft part at the end part of the transmission screw (7) is arranged on a supporting copper sleeve (5) in the guide body (12), and thrust ball bearings are arranged at the left end and the right end of the supporting copper sleeve (5).
7. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the rotating shaft of the drive bevel gear (17) is vertically arranged on the body (2) through a copper sleeve (16), and a poking wheel (15) at the outer end is fixedly connected with the rotating shaft of the drive bevel gear (17) through a flat key and a screw; the driven bevel gear (4) is fixedly connected with the transmission screw (7) through a flat key, and the driven bevel gear (4) is axially fixed through a transmission screw shaft end gland (18) and a screw.
8. The internal drive train self boring taper hole apparatus as claimed in claim 1, wherein: the striker pin (14) is vertically arranged on the machine tool base through the fixing seat (13).
9. The internal drive train self boring taper hole apparatus as claimed in claim 8, wherein: the lower end of the striker pin (14) is in threaded connection with an adjusting hole on the fixed seat (13), and a lock nut is further arranged at the lower end of the striker pin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710587404.9A CN107363294B (en) | 2017-07-18 | 2017-07-18 | Self-boring taper hole device of internal transmission chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710587404.9A CN107363294B (en) | 2017-07-18 | 2017-07-18 | Self-boring taper hole device of internal transmission chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107363294A CN107363294A (en) | 2017-11-21 |
| CN107363294B true CN107363294B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710587404.9A Active CN107363294B (en) | 2017-07-18 | 2017-07-18 | Self-boring taper hole device of internal transmission chain |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817466A (en) * | 2018-08-21 | 2018-11-16 | 台州黄公汽车部件有限公司 | A kind of boring machine tool |
| CN114714152B (en) * | 2021-12-20 | 2023-11-21 | 河南平高电气股份有限公司 | Barrel inner wall cutting device and alignment method thereof |
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