A numerical control machine tool applied to motor processing and its clamping and usage method

Abstract

The present invention provides a numerical control machine tool applied to motor processing and its clamping and usage method. The present invention includes a machine tool base, a tool rest seat, a tool rest driving part, and a chuck rotation driving part. The workpiece chuck includes a first chuck and a second chuck, and both the first chuck and the second chuck are horizontally and laterally slidably connected to a vertically installed surface; a chuck moving driving part is provided on the vertically installed surface to enable the chuck rotation driving part to drive the first chuck or the second chuck to rotate; the first chuck includes a first chuck seat, and a first clamping seat is rotatably connected to the first chuck seat. More than two clamping components are symmetrically arranged on the outer circumferential side wall of the first clamping seat, and each clamping component includes a clamping arm; the second chuck includes a second chuck seat, and a three-jaw chuck is rotatably connected to the second chuck seat; an arm rotation driving part is provided on the outer circumferential side wall of the first chuck seat, and the arm rotation driving part is used to drive the clamping arm to rotate. The overall processing efficiency has been significantly improved.

Description

Technical Field

[0001] The present invention relates to a numerical control machine tool, and in particular, to a numerical control machine tool for motor processing and its clamping and use method. Background Art

[0002] Motors are increasingly widely used in modern industrialization. During the processing of the motor housing, first, a blank is formed by casting, and then the blank is machined by turning and milling.

[0003] A traditional lathe mainly includes a three-jaw or four-jaw chuck and a tool holder provided on the spindle. The chuck structure can adopt a three-jaw chuck and a numerical control lathe as described in the Chinese utility model patent with the authorization announcement number CN205200586U.

[0004] The workpiece to be processed is, for example, Figure 1 the motor housing shown in the figure. A large number of fins 100 are provided on the circumference of the motor housing. A number of foot blocks 200 drilled with threaded holes and used for positioning and mating with the machine feet are also evenly distributed on the circumference of the motor housing. The foot blocks 200 are located at positions of the motor housing close to both end faces. There are also small smooth circumferential segments at both ends of the motor housing. The three-jaw chuck can be used to clamp and fix the motor housing.

[0005] During the processing of the motor housing, after one end face is processed, it is necessary to remove the housing from the chuck and then perform secondary manual clamping, and this clamping process is inefficient. Summary of the Invention

[0006] In view of this, the first object of the present invention is to provide a numerical control machine tool for motor processing, which can realize the automatic turning of the end face of the motor housing, and the overall processing efficiency is significantly improved.

[0007] To solve the above technical problems, the technical solution of the present invention is as follows:

[0008] A numerical control machine tool for motor processing includes a machine tool base, a tool rest, a tool rest driving part, and a chuck rotation driving part. A processing tool can be installed on the tool rest. The machine tool base is also provided with a vertical installation surface, and a workpiece chuck is installed on the vertical installation surface. The chuck rotation driving part is used to drive the workpiece chuck to rotate, and the tool rest driving part is used to drive the tool rest to move towards or away from the workpiece chuck;

[0009] The workpiece chuck includes a first chuck and a second chuck, and both the first chuck and the second chuck are horizontally and laterally slidably connected to the vertical installation surface;

[0010] The vertical mounting surface is provided with a chuck moving drive unit, which is used to drive the first chuck and the second chuck to move horizontally and position the first chuck and the second chuck at a specified horizontal position, so that the chuck rotation drive unit can drive the first chuck or the second chuck to rotate;

[0011] The first chuck includes a first chuck base, on which a first clamping seat is rotatably connected. More than two clamping assemblies are symmetrically arranged on the outer circumferential side wall of the first clamping seat. Each clamping assembly includes a clamping arm. The two ends of the clamping arm are respectively a rotating end and a clamping end. The rotating end is rotatably connected to the outer circumferential side wall of the first clamping seat, and the clamping end is rotatably connected to the end of the clamping arm. A clamping drive unit is arranged on the clamping arm, which is used to drive the clamping end to rotate. The clamping end is clamped on the foot block of the motor housing and can be used to drive the motor housing to rotate horizontally;

[0012] The second chuck includes a second chuck base, on which a three-jaw chuck is rotatably connected;

[0013] An arm rotation drive unit is arranged on the outer circumferential side wall of the first chuck base, which is used to drive the clamping arm to rotate. The clamping arm can drive the motor housing to move to the position of the three-jaw chuck, and the three-jaw chuck clamps the motor housing tightly.

[0014] Through the above technical solution, first, the end of the motor housing to be processed is abutted against the end position of the first clamping seat, and the clamping end is installed on the foot block of the motor housing. After the installation is completed, the symmetrically arranged clamping assemblies can stably fix the motor housing on the first clamping seat. The chuck rotation drive unit can drive the workpiece chuck and the motor housing to rotate circumferentially, and the processing tool on the tool rest can process the end face of the motor housing;

[0015] After the end face of the motor housing is processed, the arm rotation drive unit drives the rotating end to rotate, and the clamping drive unit drives the clamping end to rotate. The motor housing can be turned around, and the end of the processed motor housing faces the three-jaw chuck. And the motor housing will be transferred to the three-jaw chuck, and the three-jaw chuck fixes the motor housing. The end of the unprocessed motor housing faces outward, and the clamping end is removed from the motor housing;

[0016] The chuck moving drive unit drives the first chuck and the second chuck to move horizontally until the second chuck moves to the original position of the first chuck, and then the chuck rotation drive unit drives the second chuck to rotate. The processing tool on the tool rest can process the end face of the motor housing again;

[0017] During the above processing process, there is no need for manual flipping of the motor housing by workers, so that automatic flipping of the end face of the motor housing can be realized, and the overall processing efficiency is significantly improved.

[0018] Preferably, it further includes a telescopic driving part. The clamping arm includes a first clamping arm and a second clamping arm. The rotating end is located at the end of the first clamping arm, and the clamping end is located at the end of the second clamping arm. The second clamping arm is horizontally slidably connected to the first clamping arm, and the telescopic driving part is used to drive the first clamping arm and the second clamping arm to slide relative to each other.

[0019] Through the above technical solution, first, when installing the motor housing, the distance between the first clamping arm and the second clamping arm can be adjusted according to the actual overall size change of the motor housing, so as to facilitate clamping of motor housings of different sizes; second, when flipping the end of the motor housing, the telescopic driving part can first drive the second clamping arm and the first clamping arm to move away from each other, and the end of the motor housing can be disengaged from the first clamping seat. Then, the clamping driving part is used to drive the clamping end to rotate, and the entire motor housing can rotate circumferentially. The arm rotation driving part drives the rotating end to rotate, and the motor housing can be smoothly transferred to the three-jaw chuck and clamped by the three-jaw chuck.

[0020] In summary, the arm rotation driving part, the telescopic driving part, and the clamping driving part cooperate with each other, and the movable degree of freedom of the entire clamping assembly is greater, and the accuracy of transferring the motor housing is also higher.

[0021] Preferably, the chuck moving driving part includes a first moving driving member and a second moving driving member. The first moving driving member and the second moving driving member are symmetrically located on the left and right sides of the workpiece chuck respectively. The first moving driving member and the second moving driving member act on the workpiece chuck simultaneously to drive the workpiece chuck to move stably left and right.

[0022] Through the above technical solution, the first moving driving member and the second moving driving member cooperate with each other to drive the workpiece chuck to move left and right, and the moving stability and reliability are relatively high.

[0023] Preferably, it further includes a motor driving part installed on the machine tool base. The chuck rotation driving part includes a chuck rotation driving motor. Plugging holes are provided on both the first clamping seat and the three-jaw chuck. The chuck rotation driving motor is slidably connected to the machine tool base, and the motor driving part is used to drive the chuck rotation driving motor to slide, so that the motor shaft of the chuck rotation driving motor passes through the corresponding first clamping seat or second clamping seat and is plugged into the corresponding plugging hole.

[0024] Through the above technical solution, when the first clamping seat moves to the position of the chuck rotation driving motor, the motor shaft of the chuck rotation driving motor can pass through the first clamping seat and be inserted into the plugging hole of the first clamping seat, and the chuck driving motor can drive the first clamping seat to rotate.

[0025] When the three-jaw chuck moves to the position of the chuck rotation drive motor, the motor shaft of the chuck rotation drive motor can pass through the second chuck seat and be inserted into the insertion hole of the three-jaw chuck, and then the chuck drive motor can drive the first chuck seat to rotate.

[0026] Preferably, a clamping groove is provided at the end of the first chuck seat, and the end of the motor housing can be clamped into the clamping groove.

[0027] Through the above technical solution, when installing the motor housing, not only the outer side wall of the motor housing will be clamped by the clamping arm, but also the end of the motor housing can be clamped into the clamping groove, and the fixing effect of the entire motor housing is more outstanding.

[0028] Preferably, it further includes a connecting block, the connecting block is horizontally slidably connected to the vertical mounting surface, the connecting block is located between the first chuck and the second chuck, a magnetic attraction part is provided on the connecting block, and the first chuck seat on the first chuck and the three-jaw chuck on the second chuck can be magnetically attracted to the magnetic attraction part;

[0029] A first thrust member is provided on the three-jaw chuck, the first thrust member includes a first thrust end and a first acting end. When the motor shaft of the chuck rotation drive motor is inserted into the insertion hole of the first chuck seat, the motor shaft of the chuck rotation drive motor acts on the first thrust end, and the first acting end pushes the magnetic attraction part on the connecting block to be separated from the first chuck seat;

[0030] A second thrust member is provided on the first chuck seat, the second thrust member includes a second thrust end and a second acting end. When the motor shaft of the chuck rotation drive motor is inserted into the insertion hole of the three-jaw chuck, the motor shaft of the chuck rotation drive motor acts on the second thrust end, and the second acting end pushes the magnetic attraction part on the connecting block to be separated from the three-jaw chuck.

[0031] Through the above technical solution, when the motor shaft of the chuck rotation drive motor is not inserted into the insertion hole, both the first acting end of the first thrust member and the second acting end of the second thrust member are separated from the connecting block. When the first moving drive member and the second moving drive member act on the first chuck and the second chuck together, the magnetic attraction part on the connecting block will be magnetically attracted to the three-jaw chuck and the first chuck seat. Not only will the first chuck and the second chuck not rotate accidentally when moving, but also the accuracy of the moving position is effectively improved;

[0032] When the motor shaft of the chuck rotation drive motor is inserted into the insertion hole of the first chuck seat, the motor shaft can act on the first thrust end, and the first acting end pushes the magnetic attraction part on the connecting block to be separated from the first chuck seat. Then there is a gap space between the connecting block and the outer side wall of the first chuck seat, and the first chuck can rotate freely;

[0033] When the motor shaft of the chuck rotation driving motor is inserted into the insertion hole of the three-jaw chuck, the motor shaft can act on the second thrust end, and the second acting end pushes the magnetic attraction part on the connecting block to disengage from the three-jaw chuck. Then, there is a spaced space between the connecting block and the outer side wall of the three-jaw chuck, and the second chuck can rotate freely;

[0034] In the above action process, on the one hand, the movement stability of the first chuck and the second chuck during the movement process is maintained; on the other hand, the insertion action between the motor shaft of the chuck rotation driving motor and the insertion hole is fully utilized to control the timely disengagement between the first card seat, the three-jaw chuck and the connecting block.

[0035] Preferably, the first thrust member includes a first thrust rod and a first thrust spring. The first thrust end and the first acting end are respectively located at both ends of the first thrust rod. A first inclined surface is provided on the first thrust end, and the first inclined surface is used to abut against the motor shaft of the chuck rotation driving motor. The first thrust spring acts on the first thrust rod elastically. The first thrust end is located in the insertion hole of the first card seat, and the first acting end is disengaged from the connecting block;

[0036] The second thrust member includes a second thrust rod and a second thrust spring. The second thrust end and the second acting end are respectively located at both ends of the second thrust rod. A second inclined surface is provided on the second thrust end, and the second inclined surface is used to abut against the motor shaft of the chuck rotation driving motor. The second thrust spring acts on the second thrust rod elastically. The second thrust end is located in the insertion hole of the three-jaw chuck, and the second acting end is disengaged from the connecting block.

[0037] Through the above technical solution, when the motor shaft of the chuck rotation driving motor is pulled out from the insertion hole of the first card seat, the first thrust spring can act on the first thrust rod, and the first acting end of the first thrust rod can automatically disengage from the connecting block;

[0038] When the motor shaft of the chuck rotation driving motor is pulled out from the insertion hole of the three-jaw chuck, the second thrust spring can act on the second thrust rod, and the second acting end of the second thrust rod can automatically disengage from the connecting block;

[0039] When the first moving driving member and the second moving driving member act on the first chuck and the second chuck, the magnetic attraction part on the connecting block can be magnetically attracted to the first card seat and the three-jaw chuck again;

[0040] The above structure reasonably utilizes the matching relationship between the motor shaft of the chuck rotation driving motor and the insertion hole, realizes the mutual disengagement between the first thrust rod or the second thrust rod and the connecting block, and the magnetic attraction part on the connecting block can be magnetically attracted to the first card seat and the three-jaw chuck again.

[0041] The second object of the present invention is to provide a clamping and using method, which can realize the automatic turning of the end face of the motor housing, and the overall clamping and processing efficiency is significantly improved.

[0042] In order to solve the above technical problems, the technical solution of the present invention is:

[0043] A clamping and using method for the numerically controlled machine tool applied to motor processing as described above:

[0044] S1: According to the size of the motor housing to be processed, the telescopic drive part drives the relative position between the first clamping arm and the second clamping arm;

[0045] S2: Fit one end of the motor housing to be processed against the end face of the first clamping seat;

[0046] S3: Pass an external bolt through the clamping end and thread it into the threaded hole of the machine foot block, and the motor housing is stably fixed to the first clamping head;

[0047] S4: Start the clamping head rotation drive motor, and the clamping head rotation drive motor can drive the first clamping head and the motor housing to be processed to rotate synchronously. The tool rest drive part drives the tool rest seat to move, and the processing tool on the tool rest seat can process the end of the motor housing installed on the first clamping head;

[0048] S5: After the motor housing in S4 is processed, the first clamping head rotates and positions until the two clamping assemblies are vertically arranged;

[0049] S6: The telescopic drive part moves the second clamping arm in a direction away from the first clamping arm, and the end face of the unprocessed motor housing will be separated from the first clamping seat;

[0050] S7: The arm rotation drive part drives the clamping arm to rotate, and the clamping drive part can also drive the clamping end to rotate synchronously. The end face of the processed motor housing faces the side of the three-jaw chuck, and the end face of the unprocessed motor housing faces the side away from the three-jaw chuck, and the three-jaw chuck clamps the motor housing;

[0051] S8: Disassemble the clamping end from the motor housing, and the arm rotation drive part drives the clamping arm to rotate to the initial position;

[0052] S9: The telescopic drive part drives the clamping head rotation drive motor to move in a direction away from the first clamping head, and the motor shaft of the clamping head rotation drive motor is pulled out from the insertion hole in the first clamping head;

[0053] S10: The first moving drive part and the second moving drive part cooperate with each other to push the first clamping head and the second clamping head to move towards the side of the second clamping head until the insertion hole on the second clamping head is opposite to the motor shaft of the clamping head rotation drive motor;

[0054] S11: The telescopic drive unit drives the chuck rotation drive motor to move towards the side close to the first chuck, and the motor shaft of the chuck rotation drive motor is inserted into the insertion hole in the second chuck;

[0055] S12: Restart the chuck rotation drive motor again. The chuck rotation drive motor drives the second chuck to rotate, and the machining tool on the tool rest can machine the unprocessed end face of the motor housing located on the second chuck.

[0056] Through the above technical solution, for the motor housing machined by the above clamping and usage method, the automatic turning of the end face of the motor housing is realized as a whole, and the overall clamping and machining efficiency is significantly improved. Description of the Drawings

[0057] Figure 1 It is a schematic structural diagram of the motor housing to be machined;

[0058] Figure 2 It is a schematic structural diagram of Embodiment 1;

[0059] Figure 3 It is a schematic top view sectional structural diagram of Embodiment 1;

[0060] Figure 4 It is for Figure 3 The enlarged view of part A of

[0061] Figure 5 It is for Figure 3 The enlarged view of part B of

[0062] Figure 6 It is a schematic front view sectional structural diagram of Embodiment 1;

[0063] Figure 7 It is for Figure 6 The enlarged view of part C of

[0064] Figure 8 It is a schematic clamping structure diagram between the clamping assembly and the motor housing to be machined in Embodiment 1;

[0065] Figure 9 It is a partial top view sectional view of Embodiment 2;

[0066] Figure 10 It is for Figure 9 The enlarged view of part D of

[0067] Reference numerals: 100, fin; 200, machine foot block; 1, machine tool base; 2, vertical mounting surface; 3, tool rest base; 4, tool rest drive unit; 5, chuck rotation drive unit; 6, chuck rotation drive motor; 7, workpiece chuck; 71, first chuck; 711, first chuck seat; 712, first clamping seat; 72, second chuck; 721, second chuck seat; 722, three-jaw chuck; 8, clamping assembly; 81, clamping arm; 811, first clamping arm; 812, second clamping arm; 82, rotating end; 83, clamping end; 84, clamping drive unit; 85, arm rotation drive unit; 9, chuck movement drive unit; 91, first movement drive member; 92, second movement drive member; 10, telescopic drive unit; 11, motor drive unit; 12, insertion hole; 13, card slot; 14, connecting block; 15, magnetic attraction part; 16, first thrust member; 161, first thrust rod; 1611, first thrust end; 1612, first acting end; 162, first thrust spring; 163, first inclined surface; 17, second thrust member; 171, second thrust rod; 1711, second thrust end; 1712, second acting end; 172, second thrust spring; 173, second inclined surface. Detailed implementation manners

[0068] The following further details the specific implementation manners of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master. Embodiment 1

[0069] A numerically controlled machine tool applied to motor processing is used to process a motor housing as shown in the attached Figure 1 figure.

[0070] See Figure 2 , its structure includes a machine tool base 1, and the machine tool base 1 is installed and placed on the ground.

[0071] See Figure 2 , a vertical mounting surface 2, a tool rest base 3, and a tool rest drive unit 4 are provided inside the machine tool base 1. The vertical mounting surface 2 and the tool rest base 3 are respectively located on the left and right sides of the machine tool base 1. A processing tool can be installed on the tool rest base 3, and the tool rest drive unit 4 can drive the entire tool rest base 3 to move closer to or away from the vertical mounting surface 2.

[0072] It further includes a workpiece chuck 7, and the workpiece chuck 7 is installed on the vertical mounting surface 2.

[0073] See Figure 2 and Figure 3 , the workpiece chuck 7 includes a first chuck 71 and a second chuck 72.

[0074] Among them, see Figure 3 and Figure 4, the first chuck 71 includes a first chuck base 711, which is horizontally and laterally slidably connected to the vertical mounting surface 2, and a first clamping seat 712 is rotatably connected to the first chuck base 711.

[0075] A plugging hole 12 is provided in the first clamping seat 712, and the plugging hole 12 can be a spline hole.

[0076] See Figure 1 and Figure 6 , on the outer circumferential side wall of the first clamping seat 712, more than two clamping assemblies 8 are symmetrically provided. In this embodiment, two clamping assemblies 8 are taken as an example for display.

[0077] Each clamping assembly 8 includes a clamping arm 81. The two ends of the clamping arm 81 are respectively a rotating end 82 and a clamping end 83. The rotating end 82 is rotatably connected to the outer circumferential side wall of the first clamping seat 712, and the clamping end 83 is rotatably connected to the end of the clamping arm 81. And a through hole is provided on the clamping end 83, and an external bolt can pass through the through hole and be in threaded cooperation with the threaded hole on the motor housing foot block 200, so that the motor housing is fixed on the clamping end 83.

[0078] See Figure 6 and Figure 7 , a clamping driving part 84 is provided on the clamping arm 81. The clamping driving part 84 can be a motor. A gear is installed on the output shaft of the motor. External teeth are provided on the outer side wall of the clamping end 83, and the gear meshes with the external teeth. The motor drives the gear to rotate. The gear meshes with the external teeth, and the entire clamping end 83 can rotate. Finally, the clamping driving part 84 is used to drive the clamping end 83 to rotate. The clamping end 83 is clamped on the foot block 200 of the motor housing and can be used to drive the motor housing to rotate horizontally.

[0079] An arm rotation driving part 85 is provided on the outer circumferential side wall of the first chuck base 711. The arm rotation driving part 85 is used to drive the clamping arm 81 to rotate. The clamping arm 81 can drive the motor housing to move to the position of the three-jaw chuck 722, and the three-jaw chuck 722 clamps the motor housing. The above-mentioned arm rotation driving part 85 can also be a motor. The motor is installed in the first chuck 71, and the output shaft of the motor is connected to drive the clamping arm 81 to rotate.

[0080] See Figure 6 and Figure 7, the clamping arm 81 includes a first clamping arm 811 and a second clamping arm 812. The rotating end 82 is located at the end of the first clamping arm 811, and the clamping end 83 is located at the end of the second clamping arm 812. The second clamping arm 812 is horizontally slidably connected to the first clamping arm 811. It further includes a telescopic driving part 10. The telescopic driving part 10 can be a telescopic motor. The telescopic driving part 10 can be fixedly installed on the first clamping arm 811. The telescopic end of the telescopic driving part 10 is connected to the second clamping arm 812. The telescopic driving part 10 is used to drive the first clamping arm 811 and the second clamping arm 812 to slide relative to each other.

[0081] See Figure 8 , a clamping groove 13 is provided at the end of the first clamping seat 712, and the end of the motor housing can be clamped into the clamping groove 13.

[0082] Among them, see Figure 3 and Figure 5 , the second chuck 72 includes a second chuck seat 721. The second chuck seat 721 is horizontally slidably connected to the vertical mounting surface 2. A three-jaw chuck 722 is rotatably connected to the second chuck seat 721.

[0083] The three-jaw chuck 722 is also provided with a plugging hole 12, and the plugging hole 12 can also be a spline hole.

[0084] See Figure 3 , Figure 4 and Figure 5 , a chuck rotation driving part 5 is installed on the vertical mounting surface 2. The chuck rotation driving part 5 is mainly used to drive the first chuck 71 and the second chuck 72 in the workpiece chuck 7 to rotate.

[0085] Specifically, it further includes a motor driving part 11 installed on the machine tool base 1. The chuck rotation driving part 5 includes a chuck rotation driving motor 6. The motor shaft of the chuck rotation driving motor 6 can be set as a spline shaft. The chuck rotation driving motor 6 is slidably connected to the machine tool base 1. The motor driving part 11 is used to drive the chuck rotation driving motor 6 to slide, so that the motor shaft of the chuck rotation driving motor 6 passes through the corresponding first chuck seat 711 or second chuck seat 721 and is plugged into the corresponding plugging hole 12.

[0086] In addition, a chuck movement driving part 9 is provided on the vertical mounting surface 2. The chuck movement driving part 9 is used to drive the first chuck 71 and the second chuck 72 to move horizontally and position the first chuck 71 and the second chuck 72 at a specified horizontal position, so that the chuck rotation driving part 5 drives the first chuck 71 or the second chuck 72 to rotate.

[0087] Specifically, the chuck moving drive unit 9 includes a first moving drive member 91 and a second moving drive member 92, and both the first moving drive member 91 and the second moving drive member 92 can be selected as drive cylinders. The first moving drive member 91 and the second moving drive member 92 are symmetrically located on the left and right sides of the workpiece chuck 7 respectively, and the first moving drive member 91 and the second moving drive member 92 act on the workpiece chuck 7 simultaneously to drive the workpiece chuck 7 to move stably left and right.

[0088] A clamping groove 13 is provided at the end of the first clamping seat 712, and the end of the motor housing can be clamped into the clamping groove 13.

[0089] The first clamping seat 711 and the second clamping seat 721 can also be fixedly connected to maintain the movement synchronization of the first clamping seat 711 and the second clamping seat 721, and a certain gap is reserved between the first chuck 71 and the second chuck 72.

[0090] Embodiment 2: The difference from Embodiment 1 is as follows:

[0091] See Figure 9 and Figure 10 , a connecting block 14 is provided between the first chuck 71 and the second chuck 72; the connecting block 14 is horizontally slidably connected to the vertical mounting surface 2, and the sliding direction of the connecting block 14 is the same as the sliding directions of both the first chuck 71 and the second chuck 72.

[0092] A magnetic attraction part 15 is provided on the connecting block 14, and the magnetic attraction part 15 can be a magnet. The first clamping seat 712 on the first chuck 71 and the three-jaw chuck 722 on the second chuck 72 can be magnetically attracted to the magnetic attraction part 15.

[0093] A first thrust member 16 is provided on the three-jaw chuck 722. The first thrust member 16 includes a first thrust end 1611 and a first acting end 1612. When the motor shaft of the chuck rotation driving motor 6 is inserted into the insertion hole 12 of the first clamping seat 712, the motor shaft of the chuck rotation driving motor 6 acts on the first thrust end 1611, and the first acting end 1612 pushes the magnetic attraction part 15 on the connecting block 14 to be separated from the first clamping seat 712.

[0094] The first clamping seat 712 includes a first thrust rod 161 and a first thrust spring 162. The first thrust end 1611 and the first acting end 1612 are respectively located at both ends of the first thrust rod 161. A first inclined surface 163 is provided on the first thrust end 1611 for abutting against the motor shaft of the chuck rotation driving motor 6. The elastic force of the first thrust spring 162 acts on the first thrust rod 161. The first thrust end 1611 is located in the insertion hole 12 of the first clamping seat 712, and the first acting end 1612 is separated from the connecting block 14.

[0095] The three-jaw chuck 722 is provided with a second thrust member 17. The second thrust member 17 includes a second thrust end 1711 and a second acting end 1712. When the motor shaft of the chuck rotation driving motor 6 is inserted into the insertion hole 12 of the three-jaw chuck 722, the motor shaft of the chuck rotation driving motor 6 acts on the second thrust end 1711, and the second acting end 1712 pushes the magnetic attraction portion 15 on the connecting block 14 to be separated from the three-jaw chuck 722.

[0096] The second thrust member 17 includes a second thrust rod 171 and a second thrust spring 172. The second thrust end 1711 and the second acting end 1712 are respectively located at both ends of the second thrust rod 171. The second thrust end 1711 is provided with a second inclined surface 173 for abutting against the motor shaft of the chuck rotation driving motor 6. The elastic force of the second thrust spring 172 acts on the second thrust rod 171. The second thrust end 1711 is located in the insertion hole 12 of the three-jaw chuck 722, and the second acting end 1712 is separated from the connecting block 14. Embodiment 2

[0097] A clamping and using method for a numerical control machine tool applied to motor processing in the above-mentioned Embodiment 1 or Embodiment 2:

[0098] S1: According to the size of the motor housing to be processed, the telescopic driving portion 10 drives the relative positions between the first clamping arm 811 and the second clamping arm 812;

[0099] S2: One end of the motor housing to be processed is attached to the end face of the first clamping seat 712;

[0100] S3: An external bolt passes through the clamping end 83 and is threadedly connected to the threaded hole of the machine foot block 200, and the motor housing is stably fixed to the first chuck 71;

[0101] S4: The chuck rotation driving motor 6 is turned on. The chuck rotation driving motor 6 can drive the first chuck 71 and the motor housing to be processed to rotate synchronously. The tool rest driving portion 4 drives the tool rest seat 3 to move, and the processing tool on the tool rest seat 3 can process the end of the motor housing installed on the first chuck 71;

[0102] S5: After the motor housing in S4 is processed, the first chuck 71 rotates and positions until the two clamping assemblies 8 are in a vertically arranged state;

[0103] S6: The telescopic driving portion 10 moves the second clamping arm 812 in a direction away from the first clamping arm 811, and the end face of the unprocessed motor housing will be separated from the first clamping seat 712;

[0104] S7: The arm rotation drive unit 85 drives the clamping arm 81 to rotate. The clamping drive unit 84 can also synchronously drive the clamping end 83 to rotate. The end face of the machined motor housing faces the side of the three-jaw chuck 722, and the end face of the unprocessed motor housing faces away from the side of the three-jaw chuck 722. The three-jaw chuck 722 clamps the motor housing.

[0105] S8: Remove the clamping end 83 from the motor housing, and the arm rotation drive unit 85 drives the clamping arm 81 to rotate to the initial position.

[0106] S9: The telescopic drive unit 10 drives the chuck rotation drive motor 6 to move away from the first chuck 71. The motor shaft of the chuck rotation drive motor 6 is pulled out from the insertion hole 12 in the first chuck 71.

[0107] S10: The first moving drive member 91 and the second moving drive member 92 cooperate with each other to push the first chuck 71 and the second chuck 72 to move towards the side of the second chuck 72 until the insertion hole 12 in the second chuck 72 is opposite to the motor shaft of the chuck rotation drive motor 6.

[0108] S11: The telescopic drive unit 10 drives the chuck rotation drive motor 6 to move towards the side close to the first chuck 71. The motor shaft of the chuck rotation drive motor 6 is inserted into the insertion hole 12 in the second chuck 72.

[0109] S12: Start the chuck rotation drive motor 6 again. The chuck rotation drive motor 6 drives the second chuck 72 to rotate, and the machining tool on the tool rest 3 can machine the unprocessed end face of the motor housing located on the second chuck 72.

[0110] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A numerically controlled machine tool applied to motor processing, comprising a machine tool base (1), a tool rest seat (3), a tool rest driving part (4), and a chuck rotation driving part (5). A processing tool can be installed on the tool rest seat (3). The machine tool base (1) is further provided with a vertical installation surface (2), and a workpiece chuck (7) is installed on the vertical installation surface (2). The chuck rotation driving part (5) is used to drive the workpiece chuck (7) to rotate, and the tool rest driving part (4) is used to drive the tool rest seat (3) to move towards or away from the workpiece chuck (7). It is characterized in that: The workpiece chuck (7) includes a first chuck (71) and a second chuck (72), and both the first chuck (71) and the second chuck (72) are horizontally and laterally slidably connected to the vertical installation surface (2); A chuck movement driving part (9) is provided on the vertical installation surface (2), and the chuck movement driving part (9) is used to drive the first chuck (71) and the second chuck (72) to move laterally and position the first chuck (71) and the second chuck (72) at a specified lateral position, so that the chuck rotation driving part (5) drives the first chuck (71) or the second chuck (72) to rotate; The first chuck (71) includes a first chuck seat (711), and a first clamping seat (712) is rotatably connected to the first chuck seat (711). More than two clamping assemblies (8) are symmetrically arranged on the outer circumferential side wall of the first clamping seat (712). Each clamping assembly (8) includes a clamping arm (81). The two ends of the clamping arm (81) are respectively a rotating end (82) and a clamping end (83). The rotating end (82) is rotatably connected to the outer circumferential side wall of the first clamping seat (712), and the clamping end (83) is rotatably connected to the end of the clamping arm (81). A clamping driving part (84) is provided on the clamping arm (81), and the clamping driving part (84) is used to drive the clamping end (83) to rotate. The clamping end (83) clamps on the machine foot block (200) of the motor housing and can be used to drive the motor housing to rotate horizontally; The second chuck (72) includes a second chuck seat (721), and a three-jaw chuck (722) is rotatably connected to the second chuck seat (721); An arm rotation driving part (85) is provided on the outer circumferential side wall of the first chuck seat (711), and the arm rotation driving part (85) is used to drive the clamping arm (81) to rotate. The clamping arm (81) can drive the motor housing to move to the position of the three-jaw chuck (722), and the three-jaw chuck (722) clamps the motor housing tightly; It further includes a telescopic driving part (10). The clamping arm (81) includes a first clamping arm (811) and a second clamping arm (812). The rotating end (82) is located at the end of the first clamping arm (811), and the clamping end (83) is located at the end of the second clamping arm (812). The second clamping arm (812) is horizontally slidably connected to the first clamping arm (811), and the telescopic driving part (10) is used to drive the first clamping arm (811) and the second clamping arm (812) to slide relative to each other. It further includes a motor driving part (11) installed on the machine tool base (1). The chuck rotation driving part (5) includes a chuck rotation driving motor (6). Plugging holes (12) are provided on both the first clamping seat (712) and the three-jaw chuck (722). The chuck rotation driving motor (6) is slidably connected to the machine tool base (1), and the motor driving part (11) is used to drive the chuck rotation driving motor (6) to slide, so that the motor shaft of the chuck rotation driving motor (6) passes through the corresponding first clamping seat (711) or second clamping seat (721) and is plugged into the corresponding plugging hole (12).

2. The numerically controlled machine tool applied to motor processing according to claim 1, characterized in that: The chuck moving driving part (9) includes a first moving driving member (91) and a second moving driving member (92). The first moving driving member (91) and the second moving driving member (92) are symmetrically located on the left and right sides of the workpiece chuck (7) respectively. The first moving driving member (91) and the second moving driving member (92) act on the workpiece chuck (7) simultaneously to drive the workpiece chuck (7) to move stably left and right.

3. The numerically controlled machine tool applied to motor processing according to claim 2, characterized in that: A clamping groove (13) is provided at the end of the first clamping seat (712), and the end of the motor housing can be clamped into the clamping groove (13).

4. The numerical control machine tool applied to motor processing according to claim 3, characterized in that: It further includes a connecting block (14). The connecting block (14) is horizontally slidably connected to the vertical installation surface (2). The connecting block (14) is located between the first chuck (71) and the second chuck (72). A magnetic attraction part (15) is provided on the connecting block (14). The first clamping seat (712) on the first chuck (71) and the three-jaw chuck (722) on the second chuck (72) can be magnetically attracted to the magnetic attraction part (15). A first thrust member (16) is provided on the three-jaw chuck (722). The first thrust member (16) includes a first thrust end (1611) and a first acting end (1612). When the motor shaft of the chuck rotation driving motor (6) is inserted into the plugging hole (12) of the first clamping seat (712), the motor shaft of the chuck rotation driving motor (6) acts on the first thrust end (1611), and the first acting end (1612) pushes the magnetic attraction part (15) on the connecting block (14) to be separated from the first clamping seat (712). A second thrust member (17) is provided on the first chuck base (712). The second thrust member (17) includes a second thrust end (1711) and a second acting end (1712). When the motor shaft of the chuck rotation driving motor (6) is inserted into the insertion hole (12) of the three-jaw chuck (722), the motor shaft of the chuck rotation driving motor (6) acts on the second thrust end (1711), and the second acting end (1712) pushes the magnetic attraction portion (15) on the connecting block (14) to be disengaged from the three-jaw chuck (722).

5. The numerical control machine tool applied to motor processing according to claim 4, characterized in that: The first thrust member (16) includes a first thrust rod (161) and a first thrust spring (162). The first thrust end (1611) and the first acting end (1612) are respectively located at both ends of the first thrust rod (161). A first inclined surface (163) is provided on the first thrust end (1611). The first inclined surface (163) is used to abut against the motor shaft of the chuck rotation driving motor (6). The elastic force of the first thrust spring (162) acts on the first thrust rod (161). The first thrust end (1611) is located in the insertion hole (12) of the first chuck base (712), and the first acting end (1612) is disengaged from the connecting block (14); The second thrust member (17) includes a second thrust rod (171) and a second thrust spring (172). The second thrust end (1711) and the second acting end (1712) are respectively located at both ends of the second thrust rod (171). A second inclined surface (173) is provided on the second thrust end (1711). The second inclined surface (173) is used to abut against the motor shaft of the chuck rotation driving motor (6). The elastic force of the second thrust spring (172) acts on the second thrust rod (171). The second thrust end (1711) is located in the insertion hole (12) of the three-jaw chuck (722), and the second acting end (1712) is disengaged from the connecting block (14).

6. A clamping and using method of the numerical control machine tool applied to motor processing according to claim 5: S1: According to the size of the motor housing to be processed, the telescopic driving portion (10) drives the relative positions between the first clamping arm (811) and the second clamping arm (812), and controls the distance between the first clamping arm (811) and the second clamping arm (812); S2: Fit one end of the motor housing to be processed against the end face of the first chuck base (712); S3: Pass an external bolt through the clamping end (83) and thread it into the threaded hole of the machine foot block (200), and the motor housing is stably fixed on the first chuck (71). S4: Turn on the chuck rotation drive motor (6). The chuck rotation drive motor (6) can drive the first chuck (71) and the motor housing to be machined to rotate synchronously. The tool rest drive part (4) drives the tool rest seat (3) to move, and the machining tool on the tool rest seat (3) can machine the end of the motor housing installed on the first chuck (71). S5: After the machining of the motor housing in S4 is completed, the first chuck (71) rotates and positions until the two clamping assemblies (8) are in a vertically arranged state. S6: The telescopic drive part (10) moves the second clamping arm (812) in a direction away from the first clamping arm (811), and the end face of the unprocessed motor housing will be separated from the first clamping seat (712). S7: The arm rotation drive part (85) drives the clamping arm (81) to rotate, and the clamping drive part (84) can also drive the clamping end (83) to rotate synchronously. The end face of the machined motor housing faces the side of the three-jaw chuck (722), and the end face of the unprocessed motor housing faces the side away from the three-jaw chuck (722). The three-jaw chuck (722) clamps the motor housing. S8: Disassemble the clamping end (83) from the motor housing, and the arm rotation drive part (85) drives the clamping arm (81) to rotate to the initial position. S9: The telescopic drive part (10) drives the chuck rotation drive motor (6) to move in a direction away from the first chuck (71), and the motor shaft of the chuck rotation drive motor (6) is pulled out from the insertion hole (12) in the first chuck (71). S10: The first moving drive member (91) and the second moving drive member (92) cooperate with each other to push the first chuck (71) and the second chuck (72) to move towards the side of the second chuck (72) until the insertion hole (12) in the second chuck (72) is opposite to the motor shaft of the chuck rotation drive motor (6). S11: The telescopic drive part (10) drives the chuck rotation drive motor (6) to move towards the side close to the first chuck (71), and the motor shaft of the chuck rotation drive motor (6) is inserted into the insertion hole (12) in the second chuck (72). S12: Start the chuck rotation drive motor (6) again. The chuck rotation drive motor (6) drives the second chuck (72) to rotate, and the machining tool on the tool rest seat (3) can machine the unprocessed end face of the motor housing located on the second chuck (72).

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