CN219617237U - Numerical control efficient spline shaft milling machine - Google Patents
Numerical control efficient spline shaft milling machine Download PDFInfo
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- CN219617237U CN219617237U CN202320354044.9U CN202320354044U CN219617237U CN 219617237 U CN219617237 U CN 219617237U CN 202320354044 U CN202320354044 U CN 202320354044U CN 219617237 U CN219617237 U CN 219617237U
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- milling machine
- spline shaft
- front center
- plugboard
- limiting
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- 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
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Abstract
The utility model relates to a numerical control efficient spline shaft milling machine, which belongs to the technical field of automobile part machining and comprises a milling machine body, wherein a movable frame is connected to the milling machine body in a sliding manner, the movable frame slides along the length direction of the milling machine body, and a spline hob is arranged on the movable frame; the milling machine body is rotationally connected with a turntable, the turntable is fixedly connected with a front center, and the front center is axially and horizontally arranged; the front center is provided with a limiting assembly, the limiting assembly comprises a plugboard, the plugboard extends along the axial direction of the front center, and the plugboard is provided with a limiting block; the end part of the plugboard is spliced in the limiting block or separated from the limiting block; the limiting block is inserted into the fork head or separated from the fork head; the milling machine body is fixedly connected with a rear center, and the rear center is arranged along the axis of the front center. The utility model has the effect of enabling the connection between the spline shaft yoke blank and the center on the milling machine to be more stable, thereby increasing the processing precision of the spline shaft yoke.
Description
Technical Field
The utility model relates to the technical field of automobile part machining, in particular to a numerical control efficient spline shaft milling machine.
Background
The spline shaft fork is an important part in an automobile universal transmission device, and referring to fig. 1, the spline shaft fork comprises fork heads 1, a base 11 and a spline shaft 12, wherein symmetrical fork heads 1 extend out of two sides of the base 11, lug holes 13 are formed in the two fork heads 1, the center position of the back of the base 11 is fixedly connected with the spline shaft 12, and arc-shaped vacant parts are formed in the edges of the end faces of the base 11 between the two fork heads 1. The spline shaft fork can increase the swing angle of the transmission shaft to a certain extent.
In the factory, when the spline shaft yoke is produced, a numerical control spline shaft 12 milling machine is generally used for hobbing the outer wall of a spline shaft yoke blank so as to form a spline on the outer wall of the spline shaft yoke blank. When the numerical control spline shaft 12 milling machine is used for positioning a machined part by using a three-jaw chuck and a center, and a spline shaft fork blank is mounted on the numerical control spline shaft 12 milling machine, the center of the lathe center is abutted with the centers of two ends of the spline shaft fork blank, and then the relative positions of the spline shaft fork blank and the center are fixed by using the three-jaw chuck.
In the above related art, since the fork head 1 of the spline shaft fork is irregular in shape, the three-jaw chuck is used to fix the spline shaft fork, which is unstable in actual use and is prone to slipping. Therefore, the problem of the numerical control efficient milling machine for the spline shaft 12, which can clamp the special shape of the spline shaft fork, is to be solved.
Disclosure of Invention
In order to enable the connection between a spline shaft fork blank and a center on a milling machine to be more stable, thereby improving the machining precision of the spline shaft fork, the utility model provides a numerical control efficient spline shaft milling machine.
The numerical control efficient spline shaft milling machine provided by the utility model adopts the following technical scheme:
a numerical control efficient spline shaft milling machine comprises a milling machine body, wherein a movable frame is connected to the milling machine body in a sliding manner, the movable frame slides along the length direction of the milling machine body, and a spline hob is arranged on the movable frame; the milling machine body is rotationally connected with a turntable, the turntable is fixedly connected with a front center, and the front center is axially and horizontally arranged; the front center is provided with a limiting assembly, the limiting assembly comprises a plugboard, the plugboard extends along the axial direction of the front center, and the plugboard is provided with a limiting block; the end part of the plugboard is spliced in the limiting block or separated from the limiting block; the limiting block is inserted into the fork head or separated from the fork head; the milling machine body is fixedly connected with a rear center, and the rear center is arranged along the axis of the front center.
Through adopting above-mentioned technical scheme, when using, at first, peg graft the stopper in the earhole on the jaw. And then, moving the spline shaft fork blank towards the front center direction, so that the inserting plate is inserted into the limiting block. And enabling the rear center to move towards the direction of the spline shaft fork blank until the front center and the rear center clamp the spline shaft fork blank on the milling machine body.
Rotating the turntable to drive the spline shaft fork blank to rotate; simultaneously, make the movable frame remove along the length direction of milling machine body, roll the cutting to spline shaft fork blank outer wall to form the spline at spline shaft fork blank outer wall.
In the milling machine working process, the matching between the inserting plate and the limiting block ensures that the spline shaft fork blank and the front center cannot slide relatively, so that the spline shaft fork blank is stably connected to the front center, the spline shaft fork blank can be more stably connected with the center on the milling machine, and the machining precision of the spline shaft fork blank is improved.
Optionally, the limiting component comprises a connecting piece, and the connecting piece is slidably connected with the front center; the first limiting part for fixing the positions of the connecting piece and the front center is arranged on the connecting piece; the plugboard is arranged on the connecting piece.
By adopting the technical scheme, the connecting piece is connected with the front center in a sliding way, so that the connecting piece is connected with and separated from the front center. Thereby being convenient for replacing the plugboard when the plugboard is worn.
And the stable connection between the connecting piece and the front center is realized through the first limiting piece.
Optionally, a connecting block is fixedly arranged on the front center, a sliding groove is formed in the connecting piece, and the connecting block is connected in the sliding groove in a sliding manner.
Through adopting above-mentioned technical scheme, the connecting block is the slip direction on the front portion top for the connecting piece, makes the slip process of connecting piece more stable.
Optionally, the first limiting part is a first bolt, the first bolt is in threaded fit with the connecting part, and one end part of the first bolt is abutted with or separated from the connecting block.
By adopting the technical scheme, the connection and disconnection between the connecting piece and the front center are conveniently realized.
Optionally, the connecting piece is provided with a slot, and the plugboard is spliced in the slot; and a limiting part II for fixing the positions of the plugboard and the slot is arranged on the connecting part.
By adopting the technical scheme, the connection and disconnection between the plugboard and the connecting piece are facilitated, so that the plugboard can be replaced and adjusted conveniently.
And the stable connection between the connecting piece and the plugboard is realized through the second limiting piece.
Optionally, the second limiting part is a second bolt, the second bolt is in threaded fit with the connecting part, and the two end parts of the second bolt are abutted or separated from the plugboard.
By adopting the technical scheme, the connection and disconnection between the connecting piece and the plugboard are conveniently realized.
Optionally, the stopper includes the joint end, and the joint end is used for with the outer wall butt around the earhole on the jaw.
By adopting the technical scheme, the depth of the limiting block inserted into the earhole is conveniently limited.
Optionally, an arc-shaped groove matched with the outer wall of the front center is formed in the end part of the limiting block.
Through adopting above-mentioned technical scheme, peg graft the stopper behind earhole department, the one end that arc recess was seted up to the stopper and the top butt in front portion to increase the area of contact between spline shaft fork blank and the top in front portion, make spline shaft fork blank connect more stable.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a spline shaft fork according to the background of the utility model.
Fig. 2 is a schematic overall structure of an embodiment of the present utility model.
FIG. 3 is a schematic view of the overall structure of the connector for highlighting the connector in an embodiment of the present utility model.
Fig. 4 is a schematic diagram of an embodiment in use.
Reference numerals illustrate: 1. a fork head; 11. a base; 12. a spline shaft; 13. ear holes; 2. a milling machine body; 21. a mounting plate; 211. a mounting base; 212. a turntable; 213. a front center; 22. a sliding frame; 221. a rear center; 23. a moving rack; 231. spline hob; 3. a limit component; 31. a connecting piece; 311. a chute; 312. a first bolt; 313. a slot; 314. a second bolt; 32. inserting plate; 33. a connecting block; 34. a limiting block; 341. a clamping end; 342. a groove; 343. an arc-shaped groove.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a numerical control efficient spline shaft milling machine. Referring to fig. 2, the numerically controlled high-efficiency spline shaft milling machine comprises a milling machine body 2, wherein a mounting plate 21 is fixedly arranged at the top of the milling machine body 2, and the mounting plate 21 is vertically arranged at one end of the milling machine body 2. The mounting plate 21 is fixedly provided with a mounting seat 211, the mounting seat 211 is cylindrical, and the axis of the mounting seat 211 coincides with the center of the milling machine. The side of the mounting seat 211 away from the mounting plate 21 is rotatably connected with a rotary table 212, and the axis of the rotary table 212 coincides with the center of the milling machine body 2. The end of the turntable 212 far away from the mounting seat 211 is fixedly connected with a front center 213, and the axis of the front center 213 coincides with the center line of the milling machine.
The top of the milling machine body 2 is connected with a sliding frame 22 in a sliding manner, and the sliding frame 22 can slide along the length direction of the milling machine body 2. A rear center 221 is fixedly arranged on one side of the sliding frame 22, which is close to the front center 213, and the axis of the rear center 221 coincides with the center line of the milling machine.
In use, the spline shaft fork blank is placed horizontally between the front tip 213 and the rear tip 221, and the front tip 213 abuts the end of the spline shaft fork blank. Then, the slide frame 22 is slid in a direction toward the front tip 213 until the rear tip 221 abuts against the spline shaft fork end. The front tip 213 and the rear tip 221 are used together to clamp the spline shaft fork on the milling machine.
Referring to fig. 2 and 3, a front center 213 is provided with a limiting assembly 3, and the limiting assembly 3 enables a spline shaft fork blank to be fixedly connected with the front center 213, and the limiting assembly 3 includes a connecting piece 31 and an insert plate 32. A connecting block 33 is fixedly arranged on the outer wall of the front center 213, and the length direction of the connecting block 33 is parallel to the axial direction of the front center 213. A sliding groove 311 is formed in one side of the connecting piece 31, and the connecting block 33 is slidably connected in the sliding groove 311. The side wall of the connecting piece 31 is in threaded fit with a plurality of first bolts 312, the first bolts 312 are uniformly distributed along the length direction of the connecting piece 31, and the end parts of the first bolts 312 penetrate through the connecting piece 31 and abut against the connecting block 33.
The plugboard 32 is L-shaped, a slot 313 is formed in one side of the connecting piece 31 opposite to the sliding groove 311, one end of the plugboard 32 is inserted into the slot 313, and the other end of the plugboard 32 extends along the axial direction of the front center 213. The second bolt 314 is screwed on the connecting piece 31, and the end part of the second bolt 314 passes through the connecting piece 31 and abuts against the inserting plate 32.
When the spline shaft fork blank is placed on a milling machine, the limiting block 34 is firstly inserted into the lug hole 13, so that the limiting block 34 and the spline shaft fork blank are fixed in position. The limiting block 34 comprises a clamping end 341, and the clamping end 341 is arranged into a cylinder; when the limiting block 34 is inserted into the ear hole 13, the side surface of the clamping end 341 is abutted against the outer wall around the ear hole 13 on the fork head 1, so that the depth of the limiting block 34 inserted into the fork head 1 is limited.
The top of the clamping end 341 is provided with a groove 342, the groove 342 is formed along the radial direction of the clamping end 341, and the plugboard 32 is inserted into the groove 342. When the spline shaft fork blank is about to rotate relative to the front center 213, the plugboard 32 plays a role in blocking the limiting block 34, and the limiting block 34 is limited to rotate, so that the spline shaft fork blank and the front center 213 cannot rotate relative to each other.
The end face of the limiting block 34 far away from the groove 342 is provided with an arc-shaped groove 343, the shape of the arc-shaped groove 343 is matched with the outer wall of the front center 213, so that after the limiting block 34 is inserted into the earhole 13, one end of the limiting block 34 provided with the arc-shaped groove 343 is abutted with the front center 213, the contact area between the spline shaft fork blank and the front center 213 is increased, and the spline shaft fork blank is connected more stably.
Referring to fig. 1, a movable frame 23 is slidably connected to the milling machine body 2, and the movable frame 23 is provided between the mounting plate 21 and the movable frame 22 and is slidable along the longitudinal direction of the milling machine body 2. The movable frame 23 is provided with a spline hob 231, the spline hob 231 is vertically arranged in the axial direction, and the spline hob 231 can rotate relative to the movable frame 23. After the spline shaft fork blank is arranged between the front center 213 and the rear center 221, the turntable 212 is driven to rotate, so that the front center 213 drives the spline shaft fork blank to rotate; meanwhile, the movable frame 23 is driven to move, so that the movable frame 23 moves along the length direction of the milling machine body 2, and the spline hob 231 rolls and cuts the outer wall of the spline shaft yoke blank so as to form a spline on the outer wall of the spline shaft yoke blank.
The implementation principle of the numerical control efficient spline shaft milling machine provided by the embodiment of the utility model is as follows:
referring to fig. 4, first, the stopper 34 is inserted into the ear hole 13 of the fork 1. Then, the spline shaft fork blank is moved towards the front tip 213, so that the plugboard 32 is spliced in the limiting block 34. The rear tip 221 is moved in the direction of the spline shaft fork until the front tip 213 and the rear tip 221 clamp the spline shaft fork to the milling machine body 2.
Rotating the turntable 212 to drive the spline shaft fork blank to rotate; simultaneously, the movable frame 23 is moved along the length direction of the milling machine body 2, and the outer wall of the spline shaft fork blank is subjected to roll cutting so as to form a spline on the outer wall of the spline shaft fork blank.
In the milling machine working process, the plug board 32 is matched with the limiting block 34, so that the spline shaft fork blank and the front center 213 cannot slide relatively, the spline shaft fork blank is stably connected to the front center 213, the spline shaft fork blank can be more stably connected with the center of the milling machine, and the machining precision of the spline shaft fork is improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A numerical control efficient spline shaft milling machine is characterized in that:
the milling machine comprises a milling machine body (2), wherein a movable frame (23) is connected to the milling machine body (2) in a sliding manner, the movable frame (23) slides along the length direction of the milling machine body (2), and a spline hob (231) is arranged on the movable frame (23);
a turntable (212) is rotationally connected to the milling machine body (2), a front center (213) is fixedly connected to the turntable (212), and the front center (213) is axially and horizontally arranged;
the front center (213) is provided with a limiting assembly (3), the limiting assembly (3) comprises a plugboard (32), the plugboard (32) extends along the axial direction of the front center (213), and the plugboard (32) is provided with a limiting block (34);
the end part of the plugboard (32) is spliced in the limiting block (34) or separated from the limiting block (34);
the limiting block (34) is inserted into the fork head (1) or separated from the fork head (1);
the milling machine is characterized in that a rear center (221) is fixedly connected to the milling machine body (2), and the rear center (221) is arranged along the axis of the front center (213).
2. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 1, wherein:
the limiting assembly (3) comprises a connecting piece (31), and the connecting piece (31) is in sliding connection with the front center (213);
a first limiting part for fixing the positions of the connecting part (31) and the front center (213) is arranged on the connecting part (31);
the plugboard (32) is arranged on the connecting piece (31).
3. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 2, wherein:
a connecting block (33) is fixedly arranged on the front center (213), a sliding groove (311) is formed in the connecting piece (31), and the connecting block (33) is connected in the sliding groove (311) in a sliding mode.
4. A numerically controlled efficient spline shaft milling machine as claimed in claim 3, wherein:
the first limiting part is a first bolt (312), the first bolt (312) is in threaded fit with the connecting part (31), and the end part of the first bolt (312) is abutted against or separated from the connecting block (33).
5. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 2, wherein:
the connecting piece (31) is provided with a slot (313), and the plugboard (32) is spliced in the slot (313);
and a limiting piece II for fixing the positions of the plugboard (32) and the slot (313) is arranged on the connecting piece (31).
6. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 5, wherein:
the second limiting part is a second bolt (314), the second bolt (314) is in threaded fit with the connecting part (31), and the end part of the second bolt (314) is abutted to or separated from the plugboard (32).
7. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 1, wherein:
the limiting block (34) comprises a clamping end (341), and the clamping end (341) is used for being abutted with the outer wall around the earhole (13) on the fork head (1).
8. The numerically controlled high-efficiency spline shaft milling machine as set forth in claim 1, wherein:
an arc-shaped groove (343) matched with the outer wall of the front center (213) is formed in the end part of the limiting block (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354044.9U CN219617237U (en) | 2023-03-01 | 2023-03-01 | Numerical control efficient spline shaft milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354044.9U CN219617237U (en) | 2023-03-01 | 2023-03-01 | Numerical control efficient spline shaft milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219617237U true CN219617237U (en) | 2023-09-01 |
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ID=87793900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320354044.9U Active CN219617237U (en) | 2023-03-01 | 2023-03-01 | Numerical control efficient spline shaft milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219617237U (en) |
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2023
- 2023-03-01 CN CN202320354044.9U patent/CN219617237U/en active Active
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