CN212526795U - Turning and milling combined machining machine tool for ball screw type electric steering gear nut - Google Patents
Turning and milling combined machining machine tool for ball screw type electric steering gear nut Download PDFInfo
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- CN212526795U CN212526795U CN202020447286.9U CN202020447286U CN212526795U CN 212526795 U CN212526795 U CN 212526795U CN 202020447286 U CN202020447286 U CN 202020447286U CN 212526795 U CN212526795 U CN 212526795U
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Abstract
The utility model relates to a turning and milling combined machining tool for a ball screw type electric steering gear nut, which comprises a base, a main machining unit which is fixedly arranged, an auxiliary machining unit which is movably arranged and a plurality of machining tools; the main processing unit comprises a main processing seat fixedly arranged on the base, a main processing chuck arranged on the main processing seat, and a plurality of main flexible clamping jaws arranged on the main processing chuck; the auxiliary processing unit comprises an auxiliary processing seat movably arranged on the base, an auxiliary processing chuck arranged on the auxiliary processing seat, and a plurality of auxiliary flexible clamping jaws arranged on the auxiliary processing chuck; the auxiliary flexible clamping jaws are also provided with abdicating grooves for avoiding the interference between the processing tool and the clamping jaws. Compared with the prior art, the milling and machining combined machine tool can integrate a plurality of machining procedures such as external circle turning, drilling, internal spiral ball channel machining and the like into the same equipment, simplifies the production process, avoids the problem of unstable workpiece dimension precision caused by repeated clamping, greatly improves the production efficiency and obviously saves the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of automobile parts processing, a turning and milling combined machining machine tool of ball screw formula electric steering gear nut is related to.
Background
The nut of the automobile ball screw type electric steering gear is complex to process, and usually a lathe is required to complete internal and external circle turning, drilling by a drilling machine or a processing center, milling of a reversing groove by a numerically controlled milling machine or a processing center, precise processing of an internal spiral ball path large pitch by the turning center, three-dimensional processing of an internal spiral ball path transition arc by a multi-axis processing center with a three-dimensional rotary worktable and other multiple complex processes, so that the processing process is long, and the size precision is easy to be unstable when workpieces are produced in batches due to repeated clamping.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a turning and milling combined machining tool of ball screw formula electric steering ware nut in order to overcome the defect that above-mentioned prior art exists for in solving ball screw formula electric steering ware nut batch production process, the work piece is repeated the clamping between a plurality of processes and is caused the unstable problem of product size precision.
The purpose of the utility model can be realized through the following technical scheme:
a turning and milling combined processing machine tool for a ball screw type electric steering gear nut comprises a base, a main processing unit fixedly arranged on the base, an auxiliary processing unit movably arranged on the base and a plurality of processing cutters arranged on the base;
the main processing unit comprises a main processing seat fixedly arranged on the base, a main processing chuck rotatably arranged on the main processing seat, and a plurality of main flexible clamping jaws arranged on the main processing chuck;
the auxiliary processing unit comprises an auxiliary processing seat movably arranged on the base, an auxiliary processing chuck arranged on the auxiliary processing seat, and a plurality of auxiliary flexible clamping jaws arranged on the auxiliary processing chuck;
the main processing chuck and the auxiliary processing chuck are oppositely arranged;
the auxiliary flexible claws are provided with abdicating grooves;
the rough turning state blank is firstly fixed through the main machining unit, outer circle turning, drilling and inner spiral ball channel machining are sequentially carried out through corresponding machining tools to obtain rough machining blanks, then the auxiliary machining unit moves and takes down the rough machining blanks to be fixed, reversing groove milling and transition milling between the reversing groove and the inner spiral ball channel are sequentially carried out through the corresponding machining tools, interference between the machining tools and the auxiliary flexible clamping jaws in the machining process is avoided through the abdicating grooves, and the ball screw type electric steering gear nut rough product is obtained.
Furthermore, vice flexible jack catch include that contained angle removes first jack catch, second jack catch and the third jack catch of locating on vice processing chuck.
Furthermore, the first clamping jaw and the second clamping jaw are both L-shaped clamping jaws and comprise connecting parts movably arranged on the auxiliary processing chuck and clamping jaw fixing parts vertically arranged with the connecting parts;
the abdicating groove is arranged on the clamping jaw fixing part.
The clamping jaw fixing parts are mutually matched to clamp rough machining blanks, and the connecting parts and the auxiliary machining chuck are connected in a sliding mode to realize flexible matching between the auxiliary flexible clamping jaws and the rough machining blanks.
Furthermore, the abdicating groove on the first jaw and the abdicating groove on the second jaw are oppositely arranged.
Furthermore, the abdicating groove on the first clamping jaw and the abdicating groove on the second clamping jaw respectively form processing abdicating spaces which are matched with the reversing groove of the ball screw type electric steering gear nut.
Further, the main flexible claw is a stepped flexible claw.
Furthermore, a rotating motor is arranged in the main processing seat, and the main processing chuck is driven to rotate by the rotating motor.
Furthermore, a displacement guide rail and a transverse moving motor are arranged on the base, the main processing seat is arranged at one end of the displacement guide rail, and the auxiliary processing seat is movably arranged on the displacement guide rail under the driving of the transverse moving motor.
The working principle is as follows: the combined milling machine tool is used for machining a rough turning state blank into a ball screw type electric steering gear nut rough product, the rough turning state blank is firstly fixed through a main machining unit, outer circle turning, drilling and inner spiral ball channel machining are sequentially carried out through corresponding machining tools to obtain a rough machining blank, then an auxiliary machining unit moves and takes down the rough machining blank to be fixed, reversing groove milling and transition milling between the reversing groove and the inner spiral ball channel are sequentially carried out through corresponding machining tools, interference between the machining tools and auxiliary flexible clamping jaws in the machining process is avoided through a abdicating groove, and the ball screw type electric steering gear nut rough product is obtained.
Compared with the prior art, the utility model has the characteristics of it is following:
1) the turning and milling combined machining tool is simple in structure and convenient to operate, machining procedures such as outer circle turning, drilling, inner spiral ball channel machining and the like which need to be respectively carried out on a plurality of devices are integrated into one device, so that the production process is greatly simplified, the problem that the size precision is easy to be unstable when workpieces are produced in batches due to repeated clamping is avoided, the production efficiency is greatly improved, and the energy consumption is remarkably saved;
2) by moving the auxiliary processing chuck arranged on the displacement guide rail, the workpiece processed by the inner spiral ball channel can be conveniently transited to the milling processing station of the reversing groove, and the problem of unstable size precision caused by artificial repeated clamping is avoided;
3) through the abdicating groove arranged on the flexible jack catch, the problem that a plurality of machining tools interfere with the flexible jack catch during machining is effectively avoided, and the production efficiency is improved;
4) the milling composite processing machine tool has high processing precision and precision stability, the processing tolerance of the processed excircle is less than 0.04mm, the pitch deviation tolerance of the internal spiral spherical path is less than 0.02mm, and the positioning precision tolerance of the reversing groove is less than 0.05mm, so that the milling composite processing machine tool is suitable for actual mass production and application of parts in the automobile industry.
Drawings
FIG. 1 is a schematic structural diagram of a turning and milling combined machine tool for a nut of a ball screw type electric steering gear in an embodiment;
FIG. 2 is a schematic view of the main process chuck;
FIG. 3 is a schematic view of a secondary process chuck;
FIG. 4 is a schematic perspective view of a third jaw;
FIG. 5 is a front view of the third jaw;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
FIG. 7 is a perspective view of the first jaw;
FIG. 8 is a front view of the first jaw;
FIG. 9 is a sectional view taken along line B-B of FIG. 8;
FIG. 10 is a top view of the first jaw;
FIG. 11 is a perspective view of the second jaw;
FIG. 12 is a schematic perspective view of the primary flexible jaw;
FIG. 13 is a front view of the primary flexible jaw;
FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;
FIG. 15 is a front view of a ball screw electric steering nut;
FIG. 16 is a cross-sectional view taken along line D-D of FIG. 15;
FIG. 17 is a left side view of the ball screw electric steering nut;
the notation in the figure is:
the machining tool comprises a base 1, a main machining seat 2, a main machining chuck 3, a main flexible jaw 4, an auxiliary machining seat 5, an auxiliary machining chuck 6, an auxiliary flexible jaw 7, a first jaw 701, a second jaw 702, a third jaw 703, a connecting part 704, a jaw fixing part 705, an 8-abdicating groove, a 9-displacement guide rail 10, a nut body 10, an inner hole 11, an inner spiral ball channel 12, a reversing groove 13, a transition groove 14, a side hole 15 and an elongated groove 16.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example (b):
as shown in fig. 1, the turning and milling combined processing machine tool for the ball screw type electric steering gear nut comprises a base 1, a main processing unit fixedly arranged on the base 1, an auxiliary processing unit movably arranged on the base 1, and a plurality of processing tools arranged on the base 1; the main processing unit comprises a main processing seat 2 fixedly arranged on the base 1, a main processing chuck 3 rotatably arranged on the main processing seat 2, and a plurality of main flexible clamping jaws 4 (shown in figure 2) arranged on the main processing chuck 3; the auxiliary processing unit comprises an auxiliary processing seat 5 movably arranged on the base 1, an auxiliary processing chuck 6 arranged on the auxiliary processing seat 5, and a plurality of auxiliary flexible clamping jaws 7 arranged on the auxiliary processing chuck 6; the main processing chuck 3 and the auxiliary processing chuck 6 are arranged oppositely, and the auxiliary flexible clamping jaws 7 are also provided with abdicating grooves 8;
as shown in fig. 3, the auxiliary flexible claws 7 include a first claw 701 (shown in fig. 7, 8, 9 and 10), a second claw 702 (shown in fig. 11) and a third claw 703 (shown in fig. 4, 5 and 6) which are provided on the auxiliary process chuck 6 so as to move at equal angles; the first jaw 701 and the second jaw 702 are both L-shaped jaws, and include a connecting portion 704 movably disposed on the sub-machining chuck 6, and a jaw fixing portion 705 disposed perpendicular to the connecting portion 704; the connecting portion 704 is provided with a bolt hole for a fixing bolt to pass through so as to fix the auxiliary flexible clamping jaw 7 on the auxiliary processing chuck 6, the bottom of the clamping jaw fixing portion 705 is an arc-shaped bottom surface so as to be matched with a rough turning state blank to be processed, and the abdicating groove 8 is formed in the clamping jaw fixing portion 705.
The relief groove 8 of the first jaw 701 and the relief groove 8 of the second jaw 702 are provided opposite to each other on the sub-process chuck 6. The abdicating groove 8 on the first clamping jaw 701 and the abdicating groove 8 on the second clamping jaw 702 respectively form processing abdicating spaces, and are matched with the reversing groove of the ball screw type electric steering gear nut, so that interference between a processing tool and the clamping jaws in the machining process of the reversing groove is avoided.
The main flexible jaw 4 shown in fig. 12, 13 and 14 is a stepped flexible jaw.
The main processing seat 2 is internally provided with a rotating motor, the main processing chuck 3 is driven to rotate by the rotating motor, the base 1 is provided with a displacement guide rail 9 and a transverse moving motor, the main processing seat 2 is arranged at one end of the displacement guide rail 9, and the auxiliary processing seat 5 is arranged on the displacement guide rail 9 in a moving way under the driving of the transverse moving motor.
The structure of the processed and produced ball screw type electric steering gear nut is shown in fig. 15, fig. 16 and fig. 17, and comprises a nut body 10, a side hole 15 and an elongated slot 16 which are arranged on the side wall of the nut body 10, an inner hole 11 which is arranged in the nut body 10 along the axial direction, an inner spiral ball channel 12 which is arranged on the side wall of the inner hole 11, reversing slots 13 which are respectively arranged on the side walls of the front end and the rear end of the nut body 10, and a transition slot 14 which is arranged between the inner spiral ball channel 12 and the reversing slot 13.
The processing process is as follows: the rough turning state blank is firstly fixed through a main processing unit, then the rough turning state blank is subjected to outer circle turning processing through turning tools in sequence, inner hole drilling processing is carried out through boring tools, side hole processing is respectively carried out through a drill bit and a reamer, large-pitch inner spiral ball channel processing is carried out through a disc milling cutter, long groove processing is carried out through an end milling cutter, rough processing blanks are obtained, then an auxiliary processing unit moves, the rough processing blanks are taken down and fixed, reversing groove milling processing is carried out through the end milling cutter in sequence, transitional milling processing is carried out between a reversing groove 13 and an inner spiral ball channel 12 through a long-handle disc milling cutter, interference between a processing tool and an auxiliary flexible clamping jaw 7 in the processing process is avoided through a abdicating groove 8, and the ball screw type.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (8)
1. A turning and milling combined processing machine tool for a ball screw type electric steering gear nut is characterized by comprising a base (1), a main processing unit fixedly arranged on the base (1), an auxiliary processing unit movably arranged on the base (1) and a plurality of processing cutters arranged on the base (1);
the main processing unit comprises a main processing seat (2) fixedly arranged on the base (1), a main processing chuck (3) rotatably arranged on the main processing seat (2), and a plurality of main flexible clamping jaws (4) arranged on the main processing chuck (3);
the auxiliary processing unit comprises an auxiliary processing seat (5) movably arranged on the base (1), an auxiliary processing chuck (6) arranged on the auxiliary processing seat (5), and a plurality of auxiliary flexible clamping jaws (7) arranged on the auxiliary processing chuck (6);
the main processing chuck (3) and the auxiliary processing chuck (6) are arranged oppositely;
the auxiliary flexible claws (7) are provided with abdicating grooves (8).
2. The turning and milling compound machine tool for the ball screw type electric steering gear nut according to claim 1, characterized in that the auxiliary flexible jaws (7) comprise a first jaw (701), a second jaw (702) and a third jaw (703) which are arranged on the auxiliary machining chuck (6) in a constant included angle movement manner.
3. The turning and milling combined machine tool for the ball screw type electric steering gear nut is characterized in that the first clamping jaw (701) and the second clamping jaw (702) are L-shaped clamping jaws, and comprise a connecting part (704) movably arranged on the auxiliary machining chuck (6) and a clamping jaw fixing part (705) vertically arranged with the connecting part (704);
the abdicating groove (8) is arranged on the claw fixing part (705).
4. The turning and milling combined machine tool for the ball screw type electric steering gear nut is characterized in that the abdicating groove (8) on the first clamping jaw (701) and the abdicating groove (8) on the second clamping jaw (702) are oppositely arranged.
5. The turning and milling combined machine tool for the ball screw type electric steering gear nut is characterized in that the abdicating groove (8) on the first clamping jaw (701) and the abdicating groove (8) on the second clamping jaw (702) are respectively matched with the reversing groove of the ball screw type electric steering gear nut.
6. The turning and milling combined machine tool for the ball screw type electric steering gear nut according to claim 4, characterized in that the main flexible jaws (4) are stepped flexible jaws.
7. The turning and milling combined machine tool for the ball screw type electric steering gear nut is characterized in that a rotating motor is arranged in the main machining seat (2), and the main machining chuck (3) is driven to rotate through the rotating motor.
8. The turning and milling combined processing machine tool for the ball screw type electric steering gear nut is characterized in that a displacement guide rail (9) and a traverse motor are arranged on a base (1), a main processing seat (2) is arranged at one end of the displacement guide rail (9), and a secondary processing seat (5) is arranged on the displacement guide rail (9) in a moving mode under the driving of the traverse motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447286.9U CN212526795U (en) | 2020-03-31 | 2020-03-31 | Turning and milling combined machining machine tool for ball screw type electric steering gear nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447286.9U CN212526795U (en) | 2020-03-31 | 2020-03-31 | Turning and milling combined machining machine tool for ball screw type electric steering gear nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212526795U true CN212526795U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020447286.9U Active CN212526795U (en) | 2020-03-31 | 2020-03-31 | Turning and milling combined machining machine tool for ball screw type electric steering gear nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212526795U (en) |
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2020
- 2020-03-31 CN CN202020447286.9U patent/CN212526795U/en active Active
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