Double-tool-rest precise numerical control vertical lathe

Abstract

The utility model discloses a double-tool-rest precision numerical control vertical lathe which comprises a machine frame, the machine frame comprises a cross beam and a base in rigid connection with the cross beam, a main transmission mechanism is installed on the base, a transverse linear guide rail is installed on the cross beam, and a left feeding mechanism and a right feeding mechanism are installed on the transverse linear guide rail. The utility model has the advantages of high work efficiency and high precision.

Description

Technical Field

[0001] The utility model relates to equipment for turning spokes, in particular to a double-tool-rest precision CNC vertical lathe. Background Art

[0002] When the existing CNC vertical lathes are processing, due to the large extension of the tool holder, it is difficult to meet the requirements of high-precision processing, and the efficiency of ordinary single-tool holder vertical lathes is not high; in addition, due to the characteristics of the mechanical structure, problems such as tool holder collision are prone to occur during the processing process, resulting in insufficient workpiece precision, and even in some processing parts that cannot be observed. Compared with ordinary vertical lathes, the overall performance and efficiency of CNC vertical lathes need to be improved. Utility Model Content

[0003] The utility model aims to provide a double-tool-rest precision CNC vertical lathe with high working efficiency and high precision.

[0004] The technical solution of the utility model is as follows: a double-tool-post precision CNC vertical lathe, comprising a frame, the frame comprising a base and a crossbeam, the crossbeam being rigidly connected to the upper end of the base, a main transmission mechanism being installed on the base, a transverse linear guide being installed on the crossbeam, a left feed mechanism and a right feed mechanism being installed on the transverse linear guide, and a bolt hole positioning fixture being connected to the main transmission mechanism.

[0005] Preferably, the main transmission mechanism includes a main motor, a motor pulley, a belt, a large pulley, a transmission gear shaft, a main shaft gear, a main shaft and a rotary cylinder. The main motor is installed at the rear of the base, and the motor pulley is installed at the end of the main motor output shaft. There is a belt drive between the main motor and the transmission gear shaft, and a gear drive between the transmission gear shaft and the main shaft. The upper end of the main shaft is connected to the bolt hole positioning fixture through a transition flange.

[0006] Preferably, the left feeding mechanism includes a left transverse servo motor, a left transverse ball screw, a left transverse slide, a left longitudinal servo motor, a left longitudinal ball screw, a left longitudinal linear guide, a left longitudinal slide, a left tool holder and a left turning tool.

[0007] Preferably, a left T-shaped slot is processed on the left longitudinal slide, the left tool holder is installed on the left T-shaped slot, a left tool groove is processed on the left tool holder, and the left turning tool is installed on the left tool groove.

[0008] Preferably, the right feeding mechanism includes a right transverse servo motor, a right transverse ball screw, a right transverse slide, a right longitudinal servo motor, a right longitudinal ball screw, a right longitudinal linear guide, a right longitudinal slide, a right tool holder and a right turning tool.

[0009] Preferably, a right T-shaped slot is processed on the right longitudinal slide, the right tool holder is installed on the right T-shaped slot, a right tool groove is processed on the right tool holder, and the right turning tool is installed on the right tool groove.

[0010] Preferably, the bolt hole positioning fixture comprises a chuck body, an expansion claw, and a bolt hole positioning pin, the inner cone core of the chuck body is connected to the piston rod of the rotary cylinder, and the bolt hole positioning pin is installed on the expansion claw.

[0011] From the above description, it can be seen that compared with the prior art, the utility model is used for turning the outer cylindrical surface of the spoke, the end face and the inner and outer chamfers of the end face, the center hole and the double-sided chamfers of the center hole. It is clamped once, with the bolt holes and the bolt hole distribution circle of the spoke as the positioning, supporting the lower plane of the spoke, and the combined tools of the two tool holders turn the spoke, thereby improving the processing efficiency and saving production time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 , a schematic diagram of the structure of the utility model;

[0014] Figure 2 , a schematic diagram of the structure of the utility model;

[0015] The meanings of the reference numerals in the figures are: 1 frame, 101 base, 102 beam, 103 horizontal linear guide, 2 main transmission mechanism, 201 main motor, 202 motor pulley, 203 belt, 204 large pulley, 205 transmission gear shaft, 206 spindle gear, 207 spindle, 208 rotary cylinder, 3 left feed mechanism, 301 left horizontal servo motor, 302 left horizontal ball screw, 303 left horizontal drag plate, 304 left longitudinal servo motor, 305 left longitudinal ball screw, 306 spindle gear, 307 spindle, 3 ...09 left horizontal servo motor, 310 left longitudinal servo motor, 311 left longitudinal servo motor, 312 left longitudinal servo motor, 313 left longitudinal servo motor, 314 left longitudinal servo motor, 315 left longitudinal servo motor, 316 6 left longitudinal linear guide, 307 left longitudinal slide, 308 left tool holder, 309 left turning tool, 4 right feed mechanism, 401 right transverse servo motor, 402 right transverse ball screw, 403 right transverse slide, 404 right longitudinal servo motor, 405 right longitudinal ball screw, 406 right longitudinal linear guide, 407 right longitudinal slide, 408 right tool holder, 409 right turning tool, 5 bolt hole positioning fixture, 501 transition flange, 502 chuck body, 503 expansion claw, 504 bolt hole positioning pin. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Reference Figure 1 , 2 As shown, a double-tool-post precision CNC vertical lathe comprises a frame 1, which serves as a mounting carrier for all components. The frame 1 comprises a base 101 and a crossbeam 102, wherein the base 101 is located at the bottom, and the crossbeam 102 is rigidly connected to the upper end of the base 101. A main transmission mechanism 2 is mounted on the base 101, and a transverse linear guide 103 is mounted on the crossbeam 102. The transverse linear guide 103 serves as a mounting carrier, and a left feed mechanism 3 and a right feed mechanism 4 are mounted on the transverse linear guide 103. A bolt hole positioning fixture 5 is connected to the main transmission mechanism 2.

[0018] The main transmission mechanism 2 includes a main motor 201, a motor pulley 202, a belt 203, a large pulley 204, a transmission gear shaft 205, a main shaft gear 206, a main shaft 207 and a rotary cylinder 208. The main motor 201 is installed at the rear of the base 101, and the motor pulley 202 is installed at the end of the output shaft of the main motor 201. There is a belt drive between the main motor 201 and the transmission gear shaft 205, and there is a gear drive between the transmission gear shaft 205 and the main shaft 207. The upper end of the main shaft 207 is connected to the bolt hole positioning fixture 5, and the bolt hole positioning fixture 5 includes a flange 501, The chuck body 502, the expansion claw 503, the bolt hole positioning pin 504, the transition flange 501 is connected to the upper end of the spindle 207, the chuck body 502 is a standard hydraulic chuck, the inner cone core of the chuck body 502 is connected to the piston rod of the rotary cylinder 208, when positioning and clamping the workpiece, the expansion claw 503 supports the lower plane of the workpiece, under the action of the rotary cylinder 208, the cone core inside the chuck body 502 moves, so that the expansion claw 503 is stretched outward, and the bolt hole positioning pin 504 installed on the expansion claw 503 expands the distribution circle of the bolt holes of the clamped workpiece, and the workpiece is positioned and clamped. By replacing the fixture and modifying the program, different requirements can be met. The left feeding mechanism 3 includes a left transverse servo motor 301, a left transverse ball screw 302, a left transverse slide 303, a left longitudinal servo motor 304, a left longitudinal ball screw 305, a left longitudinal linear guide 306, a left longitudinal slide 307, a left tool holder 308 and a left turning tool 309. The left longitudinal slide 307 is processed with a left T-slot, and the left tool holder 308 is installed on the left T-slot. The left tool holder 308 can be adjusted in a certain range in the transverse direction as needed. The left tool holder 308 is processed with a left tool groove, and the left turning tool 309 is installed on the left tool groove. The left turning tool 309 is used for the outer circle, end face and Chamfering is performed by turning; the right feeding mechanism 4 includes a right transverse servo motor 401, a right transverse ball screw 402, a right transverse slide 403, a right longitudinal servo motor 404, a right longitudinal ball screw 405, a right longitudinal linear guide 406, a right longitudinal slide 407, a right tool holder 408 and a right turning tool 409. The right longitudinal slide 407 is machined with a right T-slot, and the right tool holder 408 is installed on the right T-slot. The right tool holder 408 can be adjusted in a certain range in the transverse direction as needed. The right tool holder 408 is machined with a right tool groove, and the right turning tool 409 is installed on the right tool groove. The right turning tool 409 is used for turning holes and chamfers in the workpiece.

[0019] When the main motor 201 is started, the motor pulley 202 rotates with the output shaft of the main motor 201, and transmits power to the large pulley 204 via the belt 203, driving the transmission gear shaft 205 to rotate. The gear part of the transmission gear shaft 205 meshes with the main shaft gear 206, and transmits power to the main shaft 207, and finally drives the bolt hole positioning fixture 5 at the upper end of the main shaft 207 to rotate; the left feeding mechanism 3 includes two feed coordinates, the horizontal and vertical feed coordinates, the horizontal feed part is the left horizontal drag plate 303, and the right feeding mechanism 4 shares two pairs of horizontal linear guide rails 103 as a guide, and the left horizontal servo motor 301 drives the left horizontal ball screw 302 for horizontal feeding, and the vertical The feeding part is a left longitudinal slide 307, which is guided by two pairs of left longitudinal linear guides 306, and the left longitudinal servo motor 304 drives the left longitudinal ball screw 305 for longitudinal feeding; the right feeding mechanism 4 also includes two feeding coordinates, horizontal and vertical. The horizontal feeding part is a right horizontal slide 403, which shares two pairs of horizontal linear guides 103 with the left feeding mechanism 3, and the right horizontal servo motor 401 drives the right horizontal ball screw 402 for horizontal feeding. The longitudinal feeding part is a right longitudinal slide 407, which is guided by two pairs of right longitudinal linear guides 406, and the right longitudinal servo motor 404 drives the right longitudinal ball screw 405 for longitudinal feeding.

[0020] Working principle:

[0021] When the utility model is working, at the beginning, all the moving parts of the equipment are located at the origin, the spindle 207 stops rotating, and then the workpiece is grabbed, the bolt hole of the workpiece is aligned with the bolt hole locating pin 504, and it is placed on the chuck 5, and the upper plane of the claw 503 supports the lower plane of the workpiece, and then the piston rod of the rotary cylinder 208 is pushed out, pushing the cone core inside the chuck body 502 to move upward in a straight line, and under the transformation of the inclined surface of the cone core, it becomes an outward linear motion of the claw 503, thereby driving the bolt hole locating pin 504 to move outward until the bolt hole distribution circle of the workpiece is tightened; then the main motor 201 is started, and the power is transmitted through the primary belt drive composed of the motor pulley 202, the belt 203 and the large pulley 204, and the secondary gear drive composed of the transmission gear shaft 205 and the spindle gear 206, and finally drives the spindle 207, the bolt hole locating fixture 5 and the workpiece to rotate; then, the left transverse servo motor 301 drives the left transverse ball screw 302, The left transverse slide 303 is guided by the transverse linear guide 103 to perform transverse feeding, the left longitudinal servo motor 304 drives the left longitudinal ball screw 305, so that the left longitudinal slide 307 is guided by the left longitudinal linear guide 306 to perform longitudinal feeding, the right transverse servo motor 401 drives the right transverse ball screw 402, so that the right transverse slide 403 is guided by the transverse linear guide 103 to perform transverse feeding, and the right longitudinal servo motor 40 The right longitudinal ball screw 405 is driven to make the right longitudinal slide 407 to perform longitudinal feeding under the guidance of the right longitudinal linear guide 406. According to the programmed program, the left tool rest 308 and the right tool rest 408 start to move and the left turning tool 309 turns the outer cylindrical surface, end surface and chamfer of the wheel spoke, and the right turning tool 409 turns the middle hole and chamfer of the wheel spoke. After the turning is completed, the left tool rest 308 and the right tool rest 408 are reset, the spindle 207 stops rotating, and the claw 503 releases the workpiece.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-turret precision CNC vertical lathe, characterized by: The invention comprises a frame (1), wherein the frame (1) comprises a base (101) and a crossbeam (102), wherein the crossbeam (102) is rigidly connected to the upper end of the base (101), a main transmission mechanism (2) is installed on the base (101), a transverse linear guide rail (103) is installed on the crossbeam (102), a left feed mechanism (3) and a right feed mechanism (4) are installed on the transverse linear guide rail (103), and a bolt hole positioning fixture (5) is connected to the main transmission mechanism (2).

2. The double-turret precision CNC vertical lathe according to claim 1, characterized in that: The main transmission mechanism (2) comprises a main motor (201), a motor pulley (202), a belt (203), a large pulley (204), a transmission gear shaft (205), a main shaft gear (206), a main shaft (207) and a rotary cylinder (208); the main motor (201) is mounted at the rear of the base (101); the motor pulley (202) is mounted at the end of the output shaft of the main motor (201); a belt transmission is implemented between the main motor (201) and the transmission gear shaft (205); a gear transmission is implemented between the transmission gear shaft (205) and the main shaft (207); and the upper end of the main shaft (207) is connected to the bolt hole positioning fixture (5) via a transition flange (501).

3. The double-tool-holder precision CNC vertical lathe according to claim 1, characterized in that: The left feeding mechanism (3) comprises a left transverse servo motor (301), a left transverse ball screw (302), a left transverse slide (303), a left longitudinal servo motor (304), a left longitudinal ball screw (305), a left longitudinal linear guide rail (306), a left longitudinal slide (307), a left tool holder (308) and a left turning tool (309).

4. The double-turret precision CNC vertical lathe according to claim 3, characterized in that: The left longitudinal slide plate (307) is processed with a left T-shaped groove, the left tool holder (308) is installed on the left T-shaped groove, the left tool holder (308) is processed with a left tool groove, and the left turning tool (309) is installed on the left tool groove.

5. The double-tool-holder precision CNC vertical lathe according to claim 1, characterized in that: The right feeding mechanism (4) comprises a right transverse servo motor (401), a right transverse ball screw (402), a right transverse slide (403), a right longitudinal servo motor (404), a right longitudinal ball screw (405), a right longitudinal linear guide rail (406), a right longitudinal slide (407), a right tool holder (408) and a right turning tool (409).

6. The double-tool-holder precision CNC vertical lathe according to claim 5, characterized in that: The right longitudinal slide plate (407) is processed with a right T-shaped groove, the right tool holder (408) is installed on the right T-shaped groove, the right tool holder (408) is processed with a right tool groove, and the right turning tool (409) is installed on the right tool groove.

7. The double-tool-holder precision CNC vertical lathe according to claim 2, characterized in that: The bolt hole positioning fixture (5) comprises a chuck body (502), an expansion claw (503), and a bolt hole positioning pin (504); the inner cone core of the chuck body (502) is connected to the piston rod of the rotary cylinder (208), and the bolt hole positioning pin (504) is installed on the expansion claw (503).

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