CN111531222A - High-efficient high-precision numerical control appearance processing equipment - Google Patents

Abstract

The invention relates to high-efficiency high-precision numerical control contour machining equipment. The invention has simple and reliable structure, convenient processing and stable processing quality of workpieces; the servo rotary moving jig is adopted, and the transposition in the feeding and discharging process is set, so that the automatic production line can be used for production, the production speed is increased, and the production efficiency is improved; the broach in the knife cylinder is cleaned by the hairbrush cylinder, so that the broach is clean, and the scrap removing effect is good.

Description

High-efficient high-precision numerical control appearance processing equipment

The technical field is as follows:

the invention relates to the technical field of machining, in particular to high-efficiency high-precision numerical control contour machining equipment.

Background art:

in mechanical parts, some outer planes, outer teeth, outer grooves, outer curved surfaces and the like need to be processed (as shown in fig. 1), a milling machine is generally adopted for production at present, multiple times of feeding are needed, sometimes, a dividing plate is needed to rotate in the circumferential direction for processing, accumulated processing errors inevitably exist in the production mode, the processing time is long, the precision of the cutter milling cannot be guaranteed, in addition, each workpiece needs to be manually loaded and unloaded, positioned and clamped, the working efficiency is low, the labor intensity is high, and if chips on a positioning surface of a clamp cannot be cleaned in time or cannot be cleaned thoroughly, the processing precision is directly influenced, so that the size consistency of batch processing is not high, the precision is lower, and the processing efficiency is low.

The invention content is as follows:

in order to overcome the defects of the existing equipment, the high-efficiency high-precision numerical control appearance machining equipment is simple in structure, convenient to clean, stable in machining quality and high in automation degree.

The purpose of the invention is realized by the following technical scheme: the utility model provides a high-efficient high accuracy numerical control appearance processing equipment, includes outer broaching machine includes the lathe bed be equipped with cleaning device, a knife section of thick bamboo device and rotary jig on the lathe bed be equipped with a knife section of thick bamboo device below the cleaning device be equipped with rotary jig below the knife section of thick bamboo device, a knife section of thick bamboo device includes apron, blade holder, transition cover, inner skleeve, back shroud, locating pin, broach and nozzle be equipped with the locating pin around the inner skleeve install many broaches in the T keyway of inner skleeve, the broach fastening is on the transition cover is adorned outward and is equipped with the blade holder, the transition cover is fixed mutually with the blade holder the up end of blade holder is fixed with the apron, and the lower terminal surface is equipped with the back shroud the nozzle is equipped with in the outside of blade holder evenly open on the inner skleeve has a plurality of hole for water spraying.

The invention is further improved in that: the rotary jig comprises a bottom plate, a support, an upper mounting plate, a lifting cylinder and a blanking chute, wherein the support is mounted on the bottom plate, the support is provided with the upper mounting plate, the upper mounting plate is provided with the lifting cylinder mounting plate and a support rod fixing seat, the lifting cylinder mounting plate is provided with the lifting cylinder, the support rod fixing seat is provided with a support rod, the upper end of the support rod is provided with a workpiece placing block, the upper end of the lifting cylinder is provided with a servo motor, a turntable, a bearing cover, a bearing seat and a rotating shaft through a motor mounting seat, one end of the servo motor is provided with a first synchronous belt pulley, one end of the rotating shaft is provided with a second synchronous belt pulley, and the first synchronous belt pulley is connected with the second; the lifting cylinder is connected with a gas claw component through a rotating arm.

The invention is further improved in that: the cleaning device comprises a brush air cylinder, a brush rod and a brush, the brush air cylinder drives the brush at the lower end of the brush rod to move up and down, and cleaning is rapid and thorough.

The invention is further improved in that: the broach is fastened on the transition sleeve through a screw, and the tool apron is fixed on the transition sleeve through the screw, so that the tool apron is fixed firmly, and the precision of a machined part is ensured.

The invention is further improved in that: six broaches are uniformly arranged in the T key groove of the inner sleeve.

Compared with the prior art, the invention has the following advantages:

1. the combined type cutter cylinder is adopted to carry out powerful broaching on the groove of the excircle of the workpiece, the structure is simple and reliable, the processing is convenient, and the processing quality of the workpiece is stable;

2. the servo rotary moving jig is adopted, and the transposition in the feeding and discharging process is set, so that the automatic production line can be used for production, the production speed is increased, and the production efficiency is improved;

3. the broach in the knife cylinder is cleaned by the hairbrush cylinder, so that the broach is clean, and the scrap removing effect is good.

Description of the drawings:

FIG. 1 is a view of a machined part;

FIG. 2 is a schematic structural view of the knife cylinder device;

FIG. 3 is a sectional view taken along line I of FIG. 2;

FIG. 4 is a cross-sectional view M-M of FIG. 2;

FIG. 5 is a sectional view taken along line J-J of FIG. 2;

FIG. 6 is a schematic structural view of a rotary jig;

FIG. 7 is a front view of the rotary jig;

FIG. 8 is a side view of the rotating jig;

FIG. 9 is a cross-sectional view taken along line K-K of FIG. 7;

FIG. 10 is a schematic structural view of the present invention;

FIG. 11 is a front view of the present invention;

FIG. 12 is a cross-sectional view I-I of FIG. 11;

reference numbers in the figures: 1-cover plate, 2-tool apron, 3-transition sleeve, 4-inner sleeve, 5-rear cover plate, 6-positioning pin, 7-broach, 8-nozzle, 9-blanking chute, 10-gas claw component, 11-workpiece placing block, 12-supporting rod 13-supporting rod fixing seat, 14-lifting cylinder, 15-rotating arm, 16-upper mounting plate, 17-lifting cylinder mounting plate, 18-bracket, 19-bottom plate, 20-servo motor, 21-first synchronous pulley, 22-rotating disc, 23-bearing cover, 24-bearing, 25-bearing seat, 26-rotating shaft, 27-second synchronous pulley, 28-motor mounting seat, 29-synchronous belt, 30-brush cylinder, 31-brush rod, 32-brush, 33-expansion sleeve, 34-propeller, 35-expansion shaft, 36-ejector rod, 37-floating joint, 38-cylinder and 39-sliding plate.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

Fig. 1 to 7 show a specific embodiment of an efficient high-precision numerical control contour machining apparatus: the automatic cutting machine comprises an outer broaching machine body, wherein a cleaning device, a knife cylinder device and a rotary jig are arranged on the machine body, the knife cylinder device is arranged below the cleaning device, the rotary jig is arranged below the knife cylinder device, the knife cylinder device comprises a cover plate 1, a knife holder 2, a transition sleeve 3, an inner sleeve 4, a rear cover plate 5, a positioning pin 6, a broach 7 and a nozzle 8, the positioning pin 6 is arranged around the inner sleeve 4, a plurality of broaches 7 are arranged in a T key groove of the inner sleeve 4, the broach 7 is fastened on the transition sleeve 3, the knife holder 2 is arranged outside the transition sleeve 3, the transition sleeve 3 is fixed with the knife holder 2, the cover plate 1 is fixed on the upper end face of the knife holder 2, the rear cover plate 5 is arranged on the lower end face of the knife holder 2, the nozzle 8 is arranged outside the knife holder 2, is externally connected with a cutting fluid water pipe, and a plurality of water spraying holes are uniformly formed in the inner sleeve 4, spraying cutting fluid to wash the broach; the broach 7 is fastened on the transition sleeve 3 through a screw, and the tool apron 2 is fixed on the transition sleeve 3 through a screw;

the rotary jig comprises a bottom plate 19, a bracket 18, an upper mounting plate 16, a lifting cylinder 14 and a blanking chute 9, wherein the bracket 18 is mounted on the bottom plate 19, an upper mounting plate 16 is arranged on the bracket 18, a lifting cylinder mounting plate 17 and a supporting rod fixing seat 13 are arranged on the upper mounting plate 16, a lifting cylinder 14 is arranged on the lifting cylinder mounting plate 17, a supporting rod 12 is arranged on the supporting rod fixing seat 13, a workpiece placing block 11 is arranged at the upper end of the supporting rod 12, a servo motor 20, a turntable 22, a bearing cover 23, a bearing 24, a bearing seat 25 and a rotating shaft 26 are arranged at the upper end of the lifting cylinder 14 through a motor mounting seat 28, a first synchronous pulley 21 is provided at one end of the servo motor 20, a second synchronous pulley 27 is attached at one end of the rotary shaft 26, the first synchronous pulley 21 is connected with the second synchronous pulley 27 through a synchronous belt 29; the lifting cylinder 14 is connected with a gas claw component 10 through a rotating arm 15;

the cleaning device comprises a brush air cylinder 30, a brush rod 31 and a brush 32, wherein the brush air cylinder 30 drives the brush 32 at the lower end of the brush rod 31 to move up and down;

the whole cycle process of the machine tool is as follows: feeding to the middle position → pushing to the broaching position → pulling down the main slide plate with a cutter → retracting the workpiece to the middle position → cleaning the cutter → returning upwards the main slide plate → cleaning the brush and removing the dust → completing a cycle.

The specific process is as follows:

a workpiece is placed on a workpiece placing block 11, a lifting cylinder 14 obtains a signal to drive a gas claw component 10 to descend, then the gas claw component 10 clamps the workpiece, then the lifting cylinder 14 ascends, a servo motor 20 drives a first synchronous belt wheel 21, a synchronous belt 29, a second synchronous belt wheel 27, a rotating shaft 26, a turntable 22 and a rotating arm 15 to move the workpiece to a broaching position, then the lifting cylinder 14 descends to place the workpiece on a propeller 34, then the gas claw component 10 is released, and the workpiece returns along the original path;

after the workpiece is in place, the air cylinder 38 drives the floating joint 37 and the expansion shaft 35 to press down the expansion sleeve 33, so that the workpiece is pressed tightly;

the sliding plate 39 drives the knife cylinder part to move downwards to start broaching, and after broaching, the rotating arm 15 drives the workpiece to rotate leftwards to move the workpiece into the discharging chute 9; after the workpiece is moved out, the cutting fluid is sprayed out from a plurality of water spraying holes on the inner sleeve 4 to wash the broach, the sliding plate 39 drives the cutter cylinder component to return, and the brush cylinder 30 drives the brush rod 31 and the brush 32 to clean and remove scraps on the broach.

The machine tool belongs to a vertical external broaching machine of a fixed clamp, a mode that a broaching tool row is fixed on a main motion sliding plate and a workpiece is fixed is adopted in the broaching process, the machine tool structure adopts a brand-new heavy-load linear ball guide rail pair to realize the up-and-down motion of the tool sliding plate, the workpiece is fixed, and the broaching precision of the machine tool is ensured.

The combined type cutter cylinder is adopted to carry out powerful broaching on the groove of the excircle of the workpiece, the structure is simple and reliable, the processing is convenient, and the processing quality of the workpiece is stable; the servo rotary moving jig is adopted, and the transposition in the feeding and discharging process is set, so that the automatic production line can be used for production, the production speed is increased, and the production efficiency is improved; the broach in the knife cylinder is cleaned by the hairbrush cylinder, so that the broach is clean, and the scrap removing effect is good.

Operating system of the machine tool:

1. the control of the button station can realize the independent adjustment of each action and the change of the displacement of the machine tool, and the broaching speed or the returning speed of the machine tool is controlled by a servo motor and can be set on an electric touch screen at will.

2. The touch screen control can visually observe the change of each relevant value and the running state of the equipment in the broaching process through a human-computer interface, and can automatically display the positions of faults and give an alarm for various faults.

The machine tool adopts the transmission of a servo motor, works stably and can carry out stepless speed regulation; the broaching mode of the machine tool is that a workpiece is fixed on a workbench, a main sliding plate drives a ball screw to move up and down by a servo motor to realize broaching, and the machine tool has three operation modes of automatic circulation, semi-automatic circulation and adjustment and can meet the requirements of different broaching modes.

The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the implementation of alternative equivalent substitutions and additions of steps, the selection of specific modes, etc., are within the scope and disclosure of the present invention.

The present invention is not limited to the above embodiments, and all the ways of achieving the objects of the present invention by using the structure and the method similar to the present invention are within the protection scope of the present invention.

Claims (5)

1. The utility model provides a high-efficient high accuracy numerical control appearance processing equipment, includes the outer broaching machine, its characterized in that: the outer broaching machine comprises a machine body, a cleaning device, a knife cylinder device and a rotary jig are arranged on the machine body, the knife cylinder device is arranged below the cleaning device, the rotary jig is arranged below the knife cylinder device, the knife cylinder device comprises a cover plate (1), a knife holder (2), a transition sleeve (3), an inner sleeve (4), a rear cover plate (5), a positioning pin (6), broaches (7) and a nozzle (8), the positioning pin (6) is arranged around the inner sleeve (4), a plurality of broaches (7) are arranged in a T key groove of the inner sleeve (4), the broaches (7) are fastened on the transition sleeve (3), the knife holder (2) is arranged outside the transition sleeve (3), the transition sleeve (3) is fixed with the knife holder (2), the nozzle (8) is arranged outside the knife holder (2), and a cover plate (1) is fixed on the upper end face of the knife holder (2), the lower end surface is provided with a rear cover plate (5), and a plurality of water spray holes are uniformly formed in the inner sleeve (4).

2. A high-efficiency high-precision numerically controlled contour machining apparatus according to claim 1, characterized in that: the rotary jig comprises a bottom plate (19), a support (18), an upper mounting plate (16), a lifting cylinder (14) and a blanking chute (9), wherein the support (18) is mounted on the bottom plate (19), the upper mounting plate (16) is arranged on the support (18), the upper mounting plate (16) is provided with the lifting cylinder mounting plate (17) and a supporting rod fixing seat (13), the lifting cylinder (14) is arranged on the lifting cylinder mounting plate (17), the supporting rod fixing seat (13) is provided with a supporting rod (12), the upper end of the supporting rod (12) is provided with a workpiece placing block (11), the upper end of the lifting cylinder (14) is provided with a servo motor (20), a turntable (22), a bearing cover (23), a bearing (24), a bearing seat (25) and a rotating shaft (26) through a motor mounting seat (28), one end of the servo motor (20) is provided with a first synchronous belt pulley (21), a second synchronous pulley (27) is arranged at one end of the rotating shaft (26), and the first synchronous pulley (21) is connected with the second synchronous pulley (27) through a synchronous belt (29); the lifting cylinder (14) is connected with a gas claw component (10) through a rotating arm (15).

3. A high-efficiency high-precision numerically controlled contour machining apparatus according to claim 1, characterized in that: the cleaning device comprises a brush cylinder (30), a brush rod (31) and a brush (32), wherein the brush cylinder (30) drives the brush (32) at the lower end of the brush rod (31) to move up and down.

4. A high-efficiency high-precision numerically controlled contour machining apparatus according to claim 1, characterized in that: the broach (7) is fastened on the transition sleeve (3) through screws, and the tool apron (2) is fixed on the transition sleeve (3) through screws.

5. A high-efficiency high-precision numerically controlled contour machining apparatus according to claim 1, characterized in that: six broaches (7) are uniformly arranged in the T key groove of the inner sleeve (4).

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