CN111993066A

CN111993066A - Half shaft flange hole drilling and reaming machine tool and machining method thereof

Info

Publication number: CN111993066A
Application number: CN202010823940.6A
Authority: CN
Inventors: 李春燕; 吴俊杰; 夏宇轩; 朱亮; 耿其东
Original assignee: Yancheng Institute of Technology
Current assignee: Jiangsu Hanyang Jinggong Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2020-11-27
Anticipated expiration: 2040-08-17
Also published as: CN111993066B

Abstract

The invention discloses a half shaft flange hole drilling and reaming machine tool and a machining method thereof, and belongs to the technical field of half shaft flange machining equipment. It comprises a base; the sliding table is movably connected to the base; an X-axis driving unit which drives the sliding table to translate along the X-axis direction; the upright post is movably connected to the base; the Y-axis driving unit drives the stand column to translate along the Y-axis direction; the spindle box is movably connected with one side of the upright post; a Z-axis driving unit which drives the spindle box to lift along the Z-axis direction; a tool magazine in which a tool is placed; the clamp is fixed on the sliding table, and the half shaft flange is placed on the clamp and fixed; the X-axis driving unit, the Y-axis driving unit and the Z-axis driving unit are all driven by servo motors. The movement of each component of the machine tool is driven by the servo motor, so that X, Y and high-precision control of Z-axis movement are realized, accurate repeated positioning of a machining tool in a numerical control machine tool is facilitated, the machining efficiency and the machining quality are ensured, and the machining precision of the half-shaft flange hole is ensured.

Description

Half shaft flange hole drilling and reaming machine tool and machining method thereof

Technical Field

The invention belongs to the technical field of half-shaft flange machining equipment, and particularly relates to a half-shaft flange hole drilling and reaming machine tool and a machining method thereof.

Background

The half shaft flange is an important part on an automobile transmission, and with the rise of the manufacturing industry, the requirement of vehicles is expanded, and the requirement of the half shaft flange is also expanded. The machining of the flange hole is an important machining step of the flange. The common processing modes in the market at present are as follows: 1. free forging, namely gradually forging the blank into a required workpiece through some basic deformation processes; 2. die forging, wherein the die forging process through a horizontal forging machine comprises the following steps: blanking, heating, pre-forging, final forging, punching and skin-connecting, trimming and the like, wherein the blank is designed according to the upsetting and gathering rule strictly during processing, and the blank is not full or the material is slightly more bulged during production if the blank has slight deviation; however, only regular holes with low precision can be machined by the two methods, which are far from holes required by the market, and the drilling and reaming of holes with certain taper is more difficult.

A semi-axis ring flange needs 8 holes of processing altogether, and 8 holes of one process processing, current producer adopt digit control machine tool, process simultaneously with 8 drill bits, and machining efficiency is high, but because the distance between the hole site is less, still be difficult to guarantee the machining precision.

Through retrieval, the Chinese patent publication number: CN 109794809A; the publication date is as follows: 24 months 05 in 2019; the utility model discloses a processing semi-axis flange hole and screw hole duplex position lathe, including lathe bed, stand, cross slip table, spindle unit, tool magazine and anchor clamps, anchor clamps include two anchor clamps units about spindle unit symmetry setting, and two anchor clamps units all include location thimble mechanism and work piece clamping mechanism, and location thimble mechanism and work piece clamping mechanism set up on the base side by side, and location thimble mechanism includes first hydro-cylinder, aversion support, second hydro-cylinder and location thimble. Although the lathe of this application can realize the spot facing work to the semi-axis flange, but this machine tool anchor clamps's structural design makes the semi-axis flange can only install fixedly through the manual work, and is comparatively time-consuming, and the machining precision after the clamping can't guarantee.

Disclosure of Invention

In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a half-shaft flange hole drilling and reaming machine tool, including:

a base;

the sliding table is movably connected to the base;

the X-axis driving unit is arranged on the base and drives the sliding table to translate along the X-axis direction;

the upright post is movably connected to the base;

the Y-axis driving unit is arranged on the base and drives the stand column to translate along the Y-axis direction;

the main shaft box is movably connected with one side of the upright post and used for fixing and driving a cutter for processing the half shaft flange;

the Z-axis driving unit is arranged on the upright post and drives the spindle box to lift along the Z-axis direction;

the tool magazine is arranged on one side of the upright post, and a tool is arranged in the tool magazine;

the clamp is fixed on the sliding table, and the half shaft flange is placed on the clamp and fixed;

the X-axis driving unit, the Y-axis driving unit and the Z-axis driving unit are all driven by servo motors.

Further, the X-axis driving unit includes:

the first screw rod is in transmission connection with a servo motor of the X-axis driving unit and is arranged along the X-axis direction, and a sliding block is in threaded connection with the first screw rod;

the first linear rail is parallel to the screw rod and is arranged on the bases on two sides of the screw rod;

the front support is fixed on the base and is connected with one end, far away from the servo motor, of the first screw rod;

the rear support is fixed on the base and is connected with one end, close to the servo motor, of the first screw rod;

the front support and the rear support limit the length direction of the screw rod in the X-axis direction;

the sliding table is platform-shaped, is connected with the linear rail I in a sliding way and is connected with the sliding block in a transmission way.

Further, the jig comprises a plurality of holding members,

the support is fixed at one end of the upper surface of the sliding table;

the centre I fixing frame is arranged on the support and is provided with a centre I driving part and a centre I, the centre I driving part is fixedly connected with the centre I fixing frame, the centre I is movably connected with the centre I fixing frame, and the centre I driving part drives the centre I to perform telescopic motion along the Y-axis direction; and

the first support plate is fixed to the other end of the upper surface of the sliding table, a guide limiting groove is formed in the top end of the first support plate in a downward direction, and the guide limiting groove is closed from top to bottom;

the device comprises a vertical column, a base and a center II, wherein the vertical column is arranged on the base, the center II is fixedly connected with the base, the center II is movably connected with the base, and the center II is driven by a driving part of the center II to move in a telescopic mode along the Y-axis direction;

the first tip and the second tip are positioned on the same horizontal plane.

Furthermore, the clamp further comprises a corner cylinder, the corner cylinder is fixed on one side, away from the top fixing frame, of the supporting plate, and after the half-shaft flange is placed in place on the clamp, the flange plate of the half-shaft flange is fixed by the corner cylinder.

Further, the jig further includes:

the first floating supporting block is arranged on one side, close to the first tip fixing frame, of the first supporting plate, and comprises a first floating plate, a first fixing block, a first spring and a first limiting rod, and the first fixing block is fixed on one side face of the first supporting plate; the first floating plate is movably arranged above the first fixed block; the first spring is arranged between the first floating plate and the first fixed block, and two ends of the first spring are respectively abutted against the first floating plate and the first fixed block; the first limiting rod penetrates through the first floating plate, the middle part of the first spring and the first fixing block in sequence vertically and downwards, and the first floating plate is limited to move up and down along the first limiting rod;

the floating support block II is arranged on the support between the floating support block I and the support, the floating support block II comprises a support plate II, a floating plate II, a fixed block II, a spring II and a limiting rod II, and the support plate II is vertically arranged and fixedly connected with the support; the second fixing block is fixed on one side of the second supporting plate; the floating plate II is movably arranged above the fixed block II; the second spring is arranged between the second floating plate and the second fixed block, and two ends of the second spring are respectively abutted against the second floating plate and the second fixed block; the second limiting rod penetrates through the second floating plate, the middle part of the second spring and the second fixing block in sequence vertically and downwards to limit the second floating plate, so that the second floating plate only moves up and down along the second limiting rod.

Furthermore, V-shaped grooves are formed in the tops of the first floating plate and the second floating plate.

Furthermore, a fixing frame of the centre is movably connected with the support; also comprises the following steps of (1) preparing,

and the adjusting screw is in threaded connection with the support and the tip fixing frame, the length direction of the adjusting screw is arranged along the direction parallel to the Y axis, and the tip fixing frame is controlled to move along the direction parallel to the Y axis through the adjusting screw.

Furthermore, the tool magazine at least comprises a drill bit, a tapered reamer and a mechanical clamping type reverse chamfer tool.

According to another aspect of the invention, a method for machining a half shaft flange hole is provided, which comprises the following steps:

firstly, placing a half shaft flange: the X-axis driving unit drives the sliding table to move to a position where the first tip and the second tip are located on the same straight line, the position is a half-shaft flange mounting position, the half-shaft flange is placed on the clamp, the flange plate portion is located between the second tip and the first support plate, and the shaft body portion is placed on the first floating plate and the second floating plate;

fixing a half shaft flange: the first center driving piece and the second center driving piece are started to respectively drive the first center and the second center to extend out and abut against a center hole in the end face of the flange of the half shaft, and the corner cylinder is started to press the flange part on one side face of the supporting plate;

thirdly, moving to a processing position: the center second driving piece drives the center second to retract, and the X-axis driving unit drives the sliding table to move to the position of the Y axis where the upright post is located;

fourthly, hole machining: the main shaft box completes hole machining of the half-shaft flange by using a drill bit, a conical reamer and a mechanical clamping type reverse chamfering tool in sequence, n holes are machined by using the tool each time, and n is the number of holes to be machined in the finished half-shaft flange;

fifthly, taking out the product: the X-axis driving unit drives the sliding table to move to a half-shaft flange mounting and taking position, the corner cylinder releases the compression on the flange plate, the center driving piece drives the center to retract, and the half-shaft flange after the hole is machined is taken out.

Furthermore, the half-shaft flange placing and taking out operations in the first step and the fifth step are both carried out by a manipulator, and the manipulator is arranged on a base beside the half-shaft flange mounting and taking position.

Advantageous effects

(1) According to the half-shaft flange hole drilling and reaming machine tool, the clamp is arranged on the sliding table to translate in the X-axis direction, the stand column translates in the Y-axis direction, the main spindle box translates in the Z-axis direction, and the movement of each component is driven by the servo motor, so that X, Y and high-precision control of the movement in the Z-axis direction are realized, accurate repeated positioning of a machining tool in the numerical control machine tool is facilitated, the machining efficiency and the machining quality are ensured, and the machining precision of a half-shaft flange hole is ensured;

(2) according to the half-shaft flange hole drilling and reaming machine tool, the servo sliding table structure is formed by the sliding table and the X-axis driving unit, the sliding table can stably translate along the X-axis direction, so that the clamp and the half-shaft flange on the sliding table are driven to move in the X-axis direction, and the machining precision of the machine tool in the X-axis direction and the stability and safety of the machine tool are guaranteed;

(3) according to the half shaft flange hole drilling and reaming machine tool, the clamp is matched with the fixed seat at the assembling and taking position of the half shaft flange, the placed half shaft flange is positioned in a horizontal state, and then the half shaft flange is stably fixed on the clamp through the corner cylinder matching tip I;

(4) according to the half shaft flange hole drilling and reaming machine tool, the clamp is provided with the first floating supporting block and the second floating supporting block, so that the half shaft flange is more stably supported and can adapt to the change of shaft diameters of different shaft bodies of different models, and the stable support and centering positioning of the half shaft flanges of various models are ensured;

(5) the half-shaft flange hole drilling and reaming machine tool is provided with the adjusting screw rod to adjust the movement of the fixed frame of the center, so that the clamp can be conveniently fixed according to the lengths of half-shaft flange shafts of different models, the application range of the clamp is enlarged, and the machining range of the machine tool is enlarged;

(6) according to the half shaft flange hole drilling and reaming machine tool, for the half shaft flanges of different models, different shaft body diameters can be centered through the first floating block, the second floating block and the V-shaped grooves formed in the first floating block and the second floating block, the first floating block and the second floating block are positioned by two tops, horizontal clamping and fixing are finally completed, different shaft body lengths can be adapted through adjusting the adjusting screw rods, manual correction and positioning are not needed in the placement process of the half shaft flanges, the half shaft flanges can be automatically and horizontally corrected and fixed by means of structural characteristics, manpower consumption is reduced, and the automation degree of the machine tool is improved;

(7) the half shaft flange hole machining method has high automation degree, can realize the machining of the hole to be machined of the half shaft flange through a machine tool without excessive manual interference, has high machining efficiency, can ensure the machining accuracy by the machining method of the scheme, and can automatically change the tool in the whole process, thereby further improving the machining accuracy of the half shaft flange hole;

(8) according to the half shaft flange hole machining method, the assembling and the taking of the half shaft flange are automatically realized by the manipulator, so that the automation degree is further improved, and the labor consumption is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

FIG. 1 shows a front view of a half-shaft flange hole drilling and reaming machine tool of the invention;

FIG. 2 shows a top view of the half-axle flange hole drilling and reaming machine of the present invention;

FIG. 3 shows a side view of the half-axle flange hole drilling and reaming machine of the present invention;

FIG. 4 shows a top view of the servo slide of the present invention;

FIG. 5 shows a side view of the servo slide of the present invention;

FIG. 6 illustrates a main perspective cut-away view of a servo sled of the present invention;

FIG. 7 shows a front perspective cross-sectional view of a clip of the present invention;

FIG. 8 shows a top cross-sectional view of the clip of the present invention;

FIG. 9 is a schematic view of a corner cylinder as a flange fastening mechanism in accordance with the present invention;

FIG. 10 is a schematic view showing a floating support block configuration in the clamp of the present invention;

FIG. 11 is a schematic view showing a floating support block two position structure in the clamp of the present invention;

FIG. 12 shows a schematic view of a half-shaft flange configuration;

FIG. 13 shows a schematic view of a half-axle flange portion;

FIG. 14 shows a side view of a half-axle flange portion;

FIG. 15 shows a schematic view of a drill bit;

FIG. 16 shows a schematic view of a cone reamer;

fig. 17 shows a schematic view of a machine-clamped reverse chamfer cutter.

Reference numerals:

1. a base;

2. a servo sliding table; 20. an X-axis drive unit; 200. a speed reducer; 201. a coupling; 21. a first screw rod; 210. a slider; 22. a first wire rail; 23. a sliding table; 24. a front bracket; 240. a front flange; 241. a spacer sleeve; 242. finely adjusting the handle end; 25. a rear bracket; 250. a rear flange;

3. a column; 30. a Y-axis drive unit;

4. a main spindle box; 40. a Z-axis drive unit;

5. a tool magazine; 50. a drill bit; 51. a tapered reamer; 52. a machine-clamped reverse chamfering tool;

6. a clamp; 60. a support; 600. a fixing frame of the centre; 601. a driving part of the center; 602. a first tip; 603. adjusting the screw rod; 61. a first support plate; 610. a guide limit groove; 62. a first floating supporting block; 620. a first floating plate; 621. a first fixed block; 622. a first spring; 623. a first limiting rod; 63. a second floating supporting block; 630. a second support plate; 6300. an avoidance groove; 631. a second floating plate; 632. a second fixed block; 633. a second spring; 634. a second limiting rod; 64. a corner cylinder;

7. a fixed seat; 70. a center two driving part; 71. a second centre;

8. a half-shaft flange; 80. a flange plate; 800. holes need to be processed; 81. a shaft body.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

Example 1

The half axle flange hole drilling and reaming lathe of this embodiment includes:

a base 1;

the sliding table 23 is movably connected to the base 1;

the X-axis driving unit 20 is arranged on the base 1 and drives the sliding table 23 to translate along the X-axis direction;

the upright post 3 is movably connected to the base 1;

the Y-axis driving unit 30 is arranged on the base 1 and drives the upright post 3 to translate along the Y-axis direction;

the main shaft box 4 is movably connected with one side of the upright post 3 and used for fixing and driving a cutter for processing the half shaft flange 8;

a Z-axis driving unit 40 which is arranged on the upright post 3 and drives the main spindle box 4 to lift along the Z-axis direction;

the tool magazine 5 is arranged on one side of the upright post 3, and a tool is arranged in the tool magazine 5;

the clamp 6 is fixed on the sliding table 23, and the half shaft flange 8 is placed on the clamp 6 and fixed;

the X-axis driving unit 20, the Y-axis driving unit 30, and the Z-axis driving unit 40 are all driven by servo motors.

At present, half axle flange 8 carries out flange hole processing time consuming on the market, the labour demand is big, and the precision is generally not high, many manufacturers want to adopt the digit control machine tool to carry out the spot facing work of half axle flange 8, eight holes of processing need altogether on the ring flange 80 of a half axle flange 8, the tradition mode may be with eight drill bits simultaneous processing, machining efficiency is high, but because the distance is less between the hole site, be difficult to guarantee the machining precision, and the processing cutter handle of a knife is placed very difficultly, therefore the applicant considers making the improvement to the processing scheme: firstly, the method is divided into two working steps, and four holes are processed in a staggered mode in one working step, but the scheme not only increases the processing time, but also increases a set of tool, so that the cost is increased; secondly, a group of cutters is used for processing one hole, and then another hole is processed by changing positions, the scheme needs to change the cutter at a certain hole position, automatic cutter changing is not easy to adopt, and manual cutter changing efficiency is low, so that the method is not suitable for popularization and application; thirdly, eight holes are sequentially machined by one cutter, then the eight holes are sequentially machined by another cutter, so that the cutters can be changed at fixed positions, the cutters are conveniently automatically changed by the cutter base 5, the machining efficiency can be guaranteed, the machining precision is guaranteed, the labor consumption is low, the cutters need to be positioned for three times, the requirement on the repeated positioning precision of the cutters is very high, the three cutters need to be concentric, and the difficulty is very high, so that the half-shaft flange hole drilling and reaming machine tool is designed to be suitable for the scheme.

In the half-shaft flange hole drilling and reaming machine tool of the embodiment, the X axis and the Y axis are mutually perpendicular and are both parallel to the horizontal plane, and the Z axis is perpendicular to the X axis and the Y axis.

The half-shaft flange hole drilling and reaming machine tool of the embodiment is, as shown in fig. 1, fig. 2 and fig. 3, a half-shaft flange 8 to be machined is placed on a clamp 6 and fixed by the clamp 6, more specifically, the half-shaft flange 8 to be machined is fixed by the clamp 6 in a direction parallel to a Y axis, that is, the length direction of the half-shaft flange 8 to be machined is parallel to the Y axis direction, an X-axis driving unit 20 drives a sliding table 23 to translate along the X axis direction so as to drive the half-shaft flange 8 to be machined on the clamp 6 to translate, machining can be performed when the half-shaft flange is translated to the position of a main spindle box 4, a Z-axis driving unit 40 drives the main spindle box 4 to lift along the Z axis direction so as to drive a tool which is in transmission connection with the Z-axis direction movement, a Y-axis driving unit 30 drives a column 3 to translate along the Y axis direction so as to drive the tool to perform movement along the Y, the servo motor has the characteristics of quick response, stable torque and the like, has very accurate transmission distance, is suitable for the requirement of high-precision repeated positioning of a cutter adopting a processing mode, and can enable the machine tool to quickly and effectively process the half shaft flange hole with the standard precision requirement;

furthermore, the upright column 3 is one of important structural components of the machine tool and plays a role in up-and-down movement and supporting of a main spindle box 4 in the machine tool, the upright column 3 is made of HT250, the material is good in strength, wear resistance and heat resistance, good in vibration reduction performance and excellent in casting performance, a servo motor for driving the upright column 3 to move along the Y-axis direction is fixed on the base 1 and is used for transmission through a screw rod, and the upright column 3 is in transmission connection with the screw rod; a linear rail is vertically arranged on the edge of one side face, close to the sliding table 23, of the upright post 3, the spindle box 4 is connected to the linear rail in a sliding mode, a servo motor used for driving the spindle box 4 to ascend and descend along the Z axis is fixed to the top of the upright post 3 and is in transmission connection with the spindle box 4 through a screw rod, and a stop block is arranged at the lowest end of the linear rail, so that damage to a machine tool and even unnecessary damage caused by the fact that the spindle box 4 moves at an; in the embodiment, the main shaft box 4 consists of a box body, a toothed belt wheel, a flange, a support and a main shaft, the support supports the whole main shaft box, the belt wheel drives the main shaft to rotate, and the main shaft box 4 is driven to move on the upright post 3 through the accurate control of a servo motor, so that the relative movement of the processed half shaft flange on a Z axis is realized, and the automatic tool changing is more conveniently realized; because the flange hole shape in the half axle flange 8 requires, need three cutters to process respectively at least and just can accomplish the process, so this embodiment has set up tool magazine 5, accomplish automatic tool changing through the numerical control, tool magazine 5 locates stand 3 one side, the top of headstock 4, after the processing of a cutter is accomplished, drive through servo motor, headstock 4 moves up to the tool changing position after the tool changing, continue to descend and process, need not to go the tool setting again in this in-process, under the accurate control of each servo motor of this embodiment, only through numerical control programming control can accomplish the accurate processing overall process in half axle flange hole.

The half-shaft flange hole drilling and reaming machine tool of the embodiment is a numerical control machine tool, and comprises other components for realizing basic functions of the numerical control machine tool, such as an electrical system, a hydraulic system, a cooling system, a chip removal system, a numerical control system and the like, in addition to the above structure.

Example 2

The half axle flange hole drilling and reaming machine tool of the present embodiment is further improved on the basis of embodiment 1, and the X-axis driving unit 20 includes:

the first screw rod 21 is in transmission connection with a servo motor of the X-axis driving unit 20 and is arranged along the X-axis direction, and a sliding block 210 is in threaded connection with the first screw rod 21;

the first linear rail 22 is parallel to the first screw rod 21 and is arranged on the bases 1 at two sides of the first screw rod 21;

the front bracket 24 is fixed on the base 1 and is connected with one end of the first screw rod 21, which is far away from the servo motor;

the rear bracket 25 is fixed on the base 1 and is connected with one end of the first screw rod 21 close to the servo motor;

the front bracket 24 and the rear bracket 25 limit the length direction of the first screw rod 21 in the X-axis direction;

the sliding table 23 is platform-shaped, is connected with the first wire rail 22 in a sliding manner and is connected with the sliding block 210 in a transmission manner.

The X-axis driving unit 20 and the sliding table 23 form the servo sliding table 2 of the present application, and the structure of the servo sliding table 2 is as shown in fig. 4, fig. 5 and fig. 6, the X-axis driving unit 20 of the servo sliding table 2 is integrally fixed on the base 1, the sliding table 23 is driven to slide along the X-axis direction on the linear rail one 22 of the X-axis driving unit 20, the servo motor for providing the driving force in the X-axis direction is in transmission connection with the lead screw one 21 through the reducer 200 and the coupler 201, both ends of the lead screw one 21 are horizontally supported on the base 1 through the front bracket 24 and the rear bracket 25, the displacement of the lead screw one 21 in other directions is limited, so that the lead screw can only rotate under driving, further, the front end of the lead screw one 21 is connected with the front bracket 24 through the front flange 240, the rear end of the lead screw one 21 is connected with the rear bracket 25 through the rear flange 250, the stable connection of the lead screw one, further, a fine adjustment handle end 242 is further arranged at the front end portion of the first screw rod 21, a fine adjustment handle can be mounted on the fine adjustment handle for fine adjustment of the position of the sliding table 23, a spacer 241 is arranged between the fine adjustment handle end 242 and the front flange 240, and the spacer 241 can reduce damage of the fine adjustment handle in the using process so as to guarantee longer effective working time of the fine adjustment handle.

Example 3

The half axle flange hole drilling and reaming machine tool of the embodiment is further improved on the basis of the embodiment 2, and the clamp 6 comprises,

a support 60 fixed to one end of the upper surface of the slide table 23;

the first centre fixing frame 600 is arranged on the support 60, and is provided with a first centre driving part 601 and a first centre 602, the first centre driving part 601 is fixedly connected with the first centre fixing frame 600, the first centre 602 is movably connected with the first centre fixing frame 600, and the first centre driving part 601 drives the first centre 602 to perform telescopic motion along the Y-axis direction; and

the first support plate 61 is fixed to the other end of the upper surface of the sliding table 23, a guide limiting groove 610 is formed in the top end of the first support plate 61 downwards, and the guide limiting groove 610 is in a closed shape from top to bottom;

the device is characterized by further comprising a fixed seat 7, wherein the fixed seat 7 is fixed on the base 1 beside the upright post 2, a second centre driving part 70 and a second centre 71 are arranged on the fixed seat 7, the second centre driving part 70 is fixedly connected with the fixed seat 7, the second centre 71 is movably connected with the fixed seat 7, and the second centre driving part 70 drives the second centre 71 to perform telescopic motion along the Y-axis direction;

the first centre 602 and the second centre 71 are on the same horizontal plane.

As shown in fig. 7 and 8, the clamp 6 of this embodiment is disposed on the sliding table 23, and further, a fixing seat 7 is disposed to cooperate with the clamp 6 to clamp the half-shaft flange 8 to be processed, and a cutter is required to process the flange plate 80 of the half-shaft flange 8, so that it is not suitable to position the flange plate at a position by using a tip structure moving along with the clamp 6, and therefore, the fixing seat 7 is disposed at a position not interfering with the cutter in this embodiment, the height of the support 60 of this embodiment is adjustable, so as to conveniently adjust the height of the first tip fixing frame 600, so that the first tip 602 and the second tip 71 thereon are at the same horizontal height, and the horizontal planes of the first tip 602 and the second tip 71 are parallel to the horizontal plane of the X-axis Y-axis, thereby ensuring accurate positioning of fixing the horizontal position of the half-shaft flange 8 to be processed, which is clamped by the clamp 6, and tip holes are generally disposed, when the sliding table 23 moves to the point I602 and the point II 71 to be in the same straight line, namely the point I602 is opposite to the point II 71, the position of the clamp 6 is a mounting position of the half-shaft flange 8, the half-shaft flange 8 is placed at the position, the half-shaft flange 8 is placed in a guide limiting groove 610 formed in the support plate I61, the half-shaft flange 8 is easy to place due to the opening shape of the guide limiting groove 610, and after the mounting position, the two points can be controlled to extend out through the servo motor and abut against tip holes in two end faces of the half-shaft flange 8, so that the half-shaft flange 8 is fixed;

furthermore, after the two apexes abut against the apex holes of the half axle flange 8, the positioning and fixing of the half axle flange 8 in the horizontal direction are completed, but since the fixing seat 7 is fixed on the base 1 and cannot move, and the flange plate 80 of the half axle flange 8 needs to be processed with holes, the position of the apex two 71 naturally interferes with the normal processing track of the tool, the fixing seat 7 needs to be separated from the half axle flange 8 after completing the auxiliary positioning of the half axle flange 8, so that a fastening mechanism is needed to fasten the flange part of the half axle flange 8, on one hand, the horizontal position state of the half axle flange 8 is maintained, on the other hand, the position of the half axle flange 8 is prevented from moving in the hole processing process, the fastening device in the embodiment is shown in fig. 9, the clamp 6 further comprises a corner cylinder 64 which is fixed on the side of the supporting plate one 61 away from the apex-fixing frame 600, and after the, the corner cylinder 64 fixes the flange plate 80 of the half-shaft flange 8.

The corner cylinder 64 is a common fastening mechanism in the prior art, the mounting space is saved, the clamping speed is high, when the half-shaft flange 8 is fixed by the first center 602 and the second center 71, the corner cylinder 64 is started, the pressing arm is rotated to the front of the flange plate 80 and pressed down, the flange plate 80 is pressed on the side surface of the first support plate 61, the second center 71 can be retracted, and the corner cylinder 64 is matched with the first center 602 to horizontally fix the half-shaft flange 8; before the half-shaft flange 8 is placed, the pressing arm of the corner cylinder 64 can rotate to a position where the flange plate 80 is not interfered to be placed, and the taking and placing of the half-shaft flange 8 are not influenced.

Example 4

The half axle flange hole drilling and reaming machine tool of the embodiment is further improved on the basis of the embodiment 3, and the clamp 6 further comprises:

the first floating support block 62 is arranged on one side, close to the first tip fixing frame 600, of the first support plate 61, the first floating support block 62 comprises a first floating plate 620, a first fixing block 621, a first spring 622 and a first limiting rod 623, and the first fixing block 621 is fixed on the side face of the first support plate 61; the first floating plate 620 is movably arranged above the first fixed block 621; the first spring 622 is arranged between the first floating plate 620 and the first fixed block 621, and two ends of the first spring 622 are respectively abutted against the first floating plate 620 and the first fixed block 621; the first limiting rod 623 vertically and downwards sequentially penetrates through the first floating plate 620, the middle part of the first spring 622 and the first fixing block 621, and the first floating plate 620 is limited, so that the first floating plate 620 only moves up and down along the first limiting rod 623;

the floating support block II 63 is arranged on the support 60 between the floating support block I62 and the support 60, the floating support block II 63 comprises a support plate II 630, a floating plate II 631, a fixed block II 632, a spring II 633 and a limiting rod II 634, and the support plate II 630 is vertically arranged and fixedly connected with the support 60; the second fixing block 632 is fixed on one side of the second support plate 630; the second floating plate 631 is movably arranged above the second fixed block 632; the second spring 633 is arranged between the second floating plate 631 and the second fixed block 632, and two ends of the second spring 633 are respectively abutted against the second floating plate 631 and the second fixed block 632; the second limit rod 634 vertically penetrates through the second floating plate 631, the middle of the second spring 633 and the second fixed block 632 in sequence downwards to limit the second floating plate 631, so that the second floating plate 631 only moves up and down along the second limit rod 634.

Place on anchor clamps 6 at half axle flange 8, when top is not fixed its butt, only rely on backup pad 61 can't directly effectively support half axle flange 8, probably still need be assisted with manual support, nevertheless can increase the human consumption like this, reduce machining efficiency, and to this, this embodiment has carried out further improvement to anchor clamps 6 structure:

in the embodiment, as shown in fig. 10, the first floating support block 62 is disposed on one side of the first support plate 61, after the half-shaft flange 8 is placed, the shaft body 81 at one end of the flange plate 80 enters the guide limit groove 610 and then contacts with the first floating plate 620, the first floating plate 620 is supported by the first spring 622 and buffers the falling force of the half-shaft flange 8 and partially supports the shaft body 81, similarly, as shown in fig. 11, the second floating support block 63 is disposed on the top of the second support plate 630, as shown in fig. 11, an avoidance groove 6300 is formed at the top of the second support plate 630, the shaft body 81 at one end of the half-shaft flange 8, which is far away from the flange plate 80, contacts with the second floating plate 631 after entering the avoidance groove 6300, as supported by the second spring 633, the second floating plate 631 buffers the falling force of the half-shaft flange 8 and supports the other part of the shaft body 81, as well as the first floating plate 620 is the same as the second floating plate 631 in horizontal height, thereby further ensuring the level of the half-shaft flange 8 after placement.

Furthermore, the tops of the first floating plate 620 and the second floating plate 631 are both provided with a V-shaped groove.

Because the half axle flange 8 has multiple models, but its ring flange 80 part of the half axle flange 8 of different models is the same, the difference lies in that axis body 81 length or diameter are different, all set up V type groove at floating plate one 620 and two 631 tops to the axis body 81 this embodiment of different diameters, on the one hand to the axis body 81 of placing guide on the one hand and make the axis body 81 that adapts to multiple diameter of axle make its homoenergetic finally stably place in V type groove central line position, assistance-localization real-time, make things convenient for the tight of supporting of follow-up top mechanism to the half axle flange 8, the floatable floating plate one 620 of this embodiment, the floating plate two 631, cooperate the V type groove on it, can be applicable to effective centre gripping of multiple signal half axle flange 8 fixedly.

Through the structural design of the clamp 6 of the embodiment, the step consumption of manual calibration clamping can be greatly saved, the half shaft flange 8 to be processed can be automatically corrected to the central line position of the V-shaped groove only by placing the half shaft flange 8 above the guide limiting groove 610 and above the avoiding groove 6300 and by the aid of the V-shaped groove, the floating plate I620 and the floating plate II 631, the horizontal positioning of the half shaft flange 8 can be completed by driving two tops through a servo motor, and finally, the half shaft flange is clamped through the corner cylinder 64, and as the whole process does not need manual position correction and can completely realize the positioning of the half shaft flange 8 through structural characteristics, the mounting and the taking of the half shaft flange 8 can be completely and automatically carried out through a manipulator without the assistance of sensors such as excessive laser positioning and the like, the high automatic control is realized through the low-cost structural composition, and the manpower consumption is greatly, and the accuracy is guaranteed.

Unlike prior patent publication No. CN 109794809 a; publication date 2019, 05 month 24; the disclosed double-station machine tool for machining the holes of the half shaft flanges and the threaded holes can machine the holes of the half shaft flanges, but the clamp of the machine tool is designed to ensure that the clamping operation can only be manually carried out, because no auxiliary positioning and correcting mechanism is arranged in the application, the precision and the assembly success degree of the automatic assembly method adopting a mechanical arm and the like can not be ensured, and the numerical control program coordinate is required to be corrected before processing, the clamp 6 of the application is structurally designed, and only the half-shaft flange 8 needs to be placed through the auxiliary positioning of all the mechanisms on the clamp 6, the position can be corrected automatically by matching the mechanisms on the clamp 6, the automatic assembly modes such as a mechanical arm and the like can be fully competent, therefore, the machine tool can form a production line, automatic assembly and processing can be carried out after a numerical control program is set, the processing efficiency is greatly improved, and meanwhile, the processing precision is also ensured.

Example 5

The half-shaft flange hole drilling and reaming machine tool of the embodiment is further improved on the basis of the embodiment 4, and the tip-fixing frame 600 is movably connected with the support 60; also comprises the following steps of (1) preparing,

and the adjusting screw 603 is in threaded connection with the support 60 and the tip-fixing frame 600, the length direction of the adjusting screw 603 is arranged along the direction parallel to the Y axis, and the tip-fixing frame 600 is controlled to move along the direction parallel to the Y axis through the adjusting screw 603.

Because the length of the shaft body 81 of the half-shaft flange 8 of different types is changed, in this embodiment, the position of the center-fixing frame 600 is adjustable, that is, the distance between the center-fixing frame 600 and the fixing seat 7 is adjustable, as shown in fig. 7, the adjusting screw 603 passes through the support 60 and is in threaded connection with the bottom of the center-fixing frame 600, the support 60 is provided with a groove for limiting the movement of the center-fixing frame 600 along the direction parallel to the Y axis, the adjusting screw 603 is equivalent to a screw rod transmission structure, the rotation is converted into the linear motion of the center-fixing frame 600 screwed with the adjusting screw 603 by rotating the adjusting screw 603, and under the limitation of the groove on the support 60, the center-fixing frame 600 can be controlled to move along the direction parallel to the Y axis, so that the shaft body 81 of different.

Example 6

The half-axle flange hole drilling and reaming machine tool of the embodiment is further improved on the basis of the embodiment 5, and the tool magazine 5 at least comprises a drill 50, a tapered reamer 51 and a clamp type reverse chamfer cutter 52.

As shown in fig. 12, 13 and 14, eight holes 800 to be processed are formed in the flange plate 80 of the axle flange 8, and the holes 800 to be processed are tapered holes and chamfers, so that in order to process the holes 800 to be processed, the machine tool magazine 5 needs to drill holes with the drill 50, taper ream holes with the taper reamer 51 and chamfer holes with the machine-clamped reverse chamfer cutter 52, more specifically, the drill 50 of the present embodiment is an inner-cooling step-welded type hard alloy drill, as shown in fig. 15, the taper reamer 51 is an inner-cooling hard alloy taper reamer, as shown in fig. 16, and the machine-clamped reverse chamfer cutter 52 as shown in fig. 17, so as to further improve the processing precision.

Example 7

The method for processing the half shaft flange hole comprises the following steps:

firstly, placing a half shaft flange: the X-axis driving unit 20 drives the sliding table 23 to move to a position where the first tip 602 and the second tip 71 are in the same straight line, the position is a mounting position of the half-axis flange 8, the half-axis flange 8 is placed on the clamp 6, wherein the flange plate 80 is partially positioned between the second tip 71 and the first support plate 61, and the shaft body 81 is partially positioned on the first floating plate 620 and the second floating plate 631;

fixing a half shaft flange: starting a first center driving piece 601 and a second center driving piece 70, respectively driving a first center 602 and a second center 71 to extend out and abut against a center hole on the end face of the half shaft flange 8, starting the corner cylinder 64, and pressing part of the flange plate 80 on the side face of the first support plate 61;

thirdly, moving to a processing position: the center second driving part 70 drives the center second 71 to retract, and the X-axis driving unit 20 drives the sliding table 23 to move to the Y-axis position of the upright column 3;

fourthly, hole machining: the main spindle box 4 sequentially uses a drill bit 50, a tapered reamer 51 and a machine-clamped reverse chamfer cutter 52 to complete hole machining of the half shaft flange 8, wherein n holes are machined by using a cutter each time, and n is the number of holes 800 to be machined in the finished half shaft flange 8;

fifthly, taking out the product: the X-axis driving unit 20 drives the sliding table 23 to move to the half-shaft flange 8 mounting and taking position, the corner cylinder 64 releases the compression on the flange plate 80, the center driving piece 601 drives the center 602 to retract, and the half-shaft flange 8 after the hole is machined is taken out.

The number of the holes 800 to be processed in the half shaft flange 8 processed in the embodiment is 8, that is, n is 8.

The machining method of the embodiment is high in automation degree, the machining of the hole 800 to be machined in the half-shaft flange 8 can be achieved through the machine tool without excessive manual interference, machining efficiency is high, machining accuracy can be guaranteed through the machining method of the embodiment, automatic tool changing is achieved in the whole process, and the accuracy of machining the hole in the half-shaft flange 8 is further improved.

Example 8

The method for machining the half-shaft flange hole is further improved on the basis of the embodiment 7, the operation of placing and taking out the half-shaft flange 8 in the first step and the operation of taking out the half-shaft flange in the fifth step are performed by a manipulator, and the manipulator is arranged on the base 1 beside the loading position of the half-shaft flange 8.

In this embodiment, dress, getting of half axle flange 8 all adopt the manipulator to realize automatically, have further improved degree of automation, have practiced thrift the manpower consumption.

The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a half axle flange hole drilling and reaming lathe which characterized in that includes:

a base;

the sliding table is movably connected with the base;

the upright post is movably connected to the base;

2. The half-shaft flange hole drilling and reaming machine tool according to claim 1, wherein the X-axis driving unit comprises:

3. The half-shaft flange hole drilling and reaming machine tool according to claim 2, characterized in that:

the clamp comprises a clamp body and a clamping piece,

the support is fixed at one end of the upper surface of the sliding table;

the first tip and the second tip are positioned on the same horizontal plane.

4. The half-shaft flange hole drilling and reaming machine tool according to claim 3, characterized in that: the clamp further comprises a corner cylinder, the corner cylinder is fixed to one side, away from the top fixing frame, of the supporting plate, and after the half shaft flange is placed in place on the clamp, the flange plate of the half shaft flange is fixed by the corner cylinder.

5. The half-shaft flange hole drilling and reaming machine tool according to claim 4, wherein the clamp further comprises:

6. The half-shaft flange hole drilling and reaming machine tool according to claim 5, characterized in that: v-shaped grooves are formed in the tops of the first floating plate and the second floating plate.

7. The half-shaft flange hole drilling and reaming machine tool according to claim 6, characterized in that:

the centre fixing frame is movably connected with the support; also comprises the following steps of (1) preparing,

and the adjusting screw is in threaded connection with the support and the tip fixing frame, the length direction of the adjusting screw is arranged along the Y-axis direction, and the tip fixing frame is controlled to move along the Y-axis direction through the adjusting screw.

8. The half-shaft flange hole drilling and reaming machine tool according to claim 1, characterized in that: the tool magazine at least comprises a drill bit, a tapered reamer and a mechanical clamping type reverse chamfer tool.

9. A method for processing a half shaft flange hole is characterized by comprising the following steps:

10. The method for machining the axle shaft flange hole as claimed in claim 9, wherein: and the half shaft flange placing and taking out operation in the first step and the fifth step are performed by a manipulator, and the manipulator is arranged on a base beside the half shaft flange mounting and taking position.