CN220447549U

CN220447549U - Automatic engraving machine

Info

Publication number: CN220447549U
Application number: CN202321819869.XU
Authority: CN
Inventors: 王国鑫; 唐志强; 王忠善
Original assignee: Shandong Yifu Jinye Jewelry Co ltd
Current assignee: Shandong Yifu Jinye Jewelry Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-02-06
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses an automatic engraving machine, which comprises a frame, wherein a slide plate capable of adjusting the position is arranged on the frame, a main plate is vertically clamped on the slide plate, a left thimble and a right thimble which are respectively driven by a first driving mechanism and a second driving mechanism are respectively arranged at two ends of the slide plate, the left thimble and the right thimble are coaxially arranged, a front thimble concave driven by a third driving mechanism and a rear thimble concave driven by a fourth driving mechanism are respectively arranged at two ends of the main plate, and the front thimble concave and the rear thimble concave are coaxially arranged; the machine frame is provided with a feeding cylinder mechanism for conveying the workpiece to the pressing part of the left thimble, the right thimble, the front thimble concave and the rear thimble concave which can position the workpiece; the machine frame is also provided with a curved flower cutter mechanism and a straight flower cutter mechanism which can continuously and alternately pattern the workpiece. Through setting up station mechanism isotructure, realized automatic feeding and to the location of work piece, ensure smooth quick tool changing and the automatic pattern engraving machine that machining precision is high.

Description

Automatic engraving machine

Technical Field

The utility model relates to the technical field of jewelry, in particular to an automatic engraving machine.

Background

The engraving machine is a machine for engraving patterns on the surface of the jewelry, and generally, the engraving of the jewelry is generally performed by manually operating a manual engraving machine. The existing manual engraving machine mainly comprises an adjustable base, a clamp and a cutting knife, wherein the clamp is arranged at the top end of the adjustable base, and a knife rest of the cutting knife is arranged right above the clamp through a support frame or an upright post; the cutting knife comprises a rotary knife head and a knife blade arranged on the rotary knife head, the rotary knife head is driven by a motor to rotate and is arranged on a knife rest, a trigger driving mechanism for driving the knife rest to lift is arranged between the knife rest and a support frame or a stand column, and an operator operates a trigger to control the cutting knife to lift; the adjustable base consists of a sliding seat and a rotating seat, wherein the sliding seat slides along a plurality of directions of front and back, left and right; in specific machining, an operator adjusts each sliding seat to slide or rotates the rotating seat by one hand to drive a workpiece on the clamp to move to a proper machining position, and then controls the cutting knife to fall by the other hand to carry out engraving machining on the workpiece. The manual operation and processing efficiency of the manual engraving machine of the structure is low, the labor intensity is high, and the manual engraving machine cannot meet the requirements of large-scale production and processing; meanwhile, the existing jewelry processing mode and pattern are increased, the engraving operation of the same workpiece can be finished by cutting knives of various types, the frequency of workpiece clamping and tool bit calibration is increased, and the improvement of the processing efficiency and the processing effect is not facilitated.

At present, the flower type obtained by computer programming is used for engraving, but the jewelry engraving has certain artistic properties, the flower type obtained by pure computer programming is often too dead, no artistic feeling exists, and the customer acceptance is low; the high added value carved jewelry product is generally finished by the manual operation of a master of a super-skill worker, wherein the manual operation comprises extremely fine operation methods of the master of the skill worker and the sense and insight of beauty, and particularly, the special operation methods required for special flower shapes are often only existed in the thought of the master of the skill worker, and are further embodied in the fine operation methods, so that the manual processing effect is difficult to achieve through pure computer programming.

Therefore, for large-scale jewelry processing enterprises, the processing cannot be achieved by completely relying on manual processing or computer programming modes of workers; the cost is high by completely relying on manpower, the efficiency is low, the culture difficulty of the engraving technician is high, the culture period is long, and the problems of high mobility of personnel and the like are also accompanied; pure brain programming cannot meet the requirements of customers. Therefore, there is an urgent need for an automatic engraving machine capable of automatically engraving to a manual engraving level and satisfying customer acceptance.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide the automatic engraving machine which realizes automatic feeding and positioning of workpieces, ensures smooth and rapid tool changing and has high processing precision.

In order to solve the technical problems, the utility model comprises a frame, and is characterized in that a slide plate is arranged on the frame, a main board is vertically clamped on the slide plate, a left thimble driven by a first driving mechanism and a right thimble driven by a second driving mechanism are respectively arranged at two ends of the slide plate, the left thimble and the right thimble are coaxially arranged, a front thimble concave driven by a third driving mechanism and a rear thimble concave driven by a fourth driving mechanism are respectively arranged at two ends of the main board, and the front thimble concave and the rear thimble concave are coaxially arranged; the machine frame is provided with a feeding cylinder mechanism for conveying the workpiece to the pressing part of the left thimble, the right thimble, the front thimble concave and the rear thimble concave which can position the workpiece; the machine frame is also provided with an X-axis fixing plate driven by an X-axis servo motor, and the X-axis fixing plate is provided with a curved flower cutter mechanism and a straight flower cutter mechanism which are arranged at intervals and can continuously and alternately score a workpiece.

After adopting above-mentioned structure, at the during operation, at first adjust slide and mainboard's position, make left thimble, right thimble, preceding thimble concave and the back thimble concave that sets up on it be located suitable position, then, material loading cylinder mechanism is with the work piece to left thimble, right thimble, preceding thimble concave and the concave butt department of back thimble, fixes a position the work piece, finally, carries out the knurling to the work piece through curved flower sword mechanism and straight flower sword mechanism. The automatic cutting machine realizes automatic feeding and positioning of workpieces, ensures smooth and rapid tool changing and has high machining precision.

Preferably, the first tightening part comprises a left supporting plate and a right supporting plate which are arranged on the top surface of the sliding plate at intervals, an X-direction reciprocating ball screw driven by a second servo motor is arranged between the left supporting plate and the right supporting plate, two ends of the X-direction reciprocating ball screw are respectively connected with a left thimble base and a right thimble base through an X left nut and an X right nut, the left thimble is arranged on the left thimble base, and the right thimble is arranged on the right thimble base.

Preferably, a first supporting rod and a second supporting rod which are positioned at two sides of the X-direction reciprocating ball screw are further arranged between the left supporting plate and the right supporting plate, the left thimble base is sleeved on the first supporting rod and the second supporting rod through a first left bearing seat and a second left bearing seat respectively, and the right thimble base is sleeved on the first supporting rod and the second supporting rod through a first right bearing seat and a second right bearing seat respectively.

Preferably, the second tightening part comprises a front supporting plate and a rear supporting plate which are arranged on the main board at intervals, the front supporting plate and the rear supporting plate are provided with Y-direction reciprocating ball screws driven by a third servo motor, two ends of each Y-direction reciprocating ball screw are respectively connected with a front thimble base and a rear thimble base through a front nut and a rear nut, the front thimble is concavely arranged on the front thimble base, and the rear thimble is concavely arranged on the rear thimble base.

Preferably, a third supporting rod and a fourth supporting rod positioned on two sides of the Y-direction reciprocating ball screw are further arranged between the front supporting plate and the rear supporting plate, the front thimble base is respectively sleeved on the third supporting rod and the fourth supporting rod through a third front bearing seat and a third rear bearing seat, and the rear thimble base is respectively sleeved on the third supporting rod and the fourth supporting rod through a fourth front bearing seat and a fourth rear bearing seat.

Preferably, a feed bin is arranged on the frame, and a blanking block which is driven by a rotary cylinder and corresponds to a blanking port of the feed bin and a blanking hopper positioned below the blanking block are arranged on the feed bin; the automatic feeding device is characterized in that a discharging bearing seat positioned below the storage bin is further arranged on the frame, two rotating optical axes driven by the discharging driving mechanism and a bearing seat connecting plate positioned on the outer side of the rotating optical axes are arranged on the discharging bearing seat, a workpiece conveying channel is formed between the two rotating optical axes, an induction fixing plate is arranged on the bearing seat connecting plate, and a proximity sensor corresponding to the workpiece conveying channel is arranged on the induction fixing plate.

Preferably, the feeding cylinder mechanism comprises a Z-direction adjusting plate which is arranged on the frame and driven by the feeding driving mechanism, a flat cylinder is obliquely arranged on the Z-direction adjusting plate, a sucker rod is arranged at the output end of the flat cylinder, and a suction nozzle capable of grabbing workpieces is arranged at the end part of the sucker rod.

Preferably, an X-axis fixing plate driven by an X-axis servo motor is arranged on the frame, the flower bending cutter mechanism comprises a flower bending cutter screw sliding table arranged on the X-axis fixing plate, a flower bending cutter holding seat is arranged on the flower bending cutter screw sliding table, and an electric spindle capable of engraving a workpiece is arranged in the flower bending cutter holding seat.

Preferably, the straight-flower cutter mechanism comprises a straight-flower cutter screw sliding table arranged on the X-axis fixing plate, a main rotating shaft driven by a first servo motor of a straight-flower part is arranged on the straight-flower cutter screw sliding table, a straight-flower cutter shaft driven by a second servo motor of the straight-flower part is arranged at the lower end part of the main rotating shaft, and a straight-flower cutter head capable of engraving a workpiece is arranged at the output end of the straight-flower cutter shaft.

According to the utility model, the positions of the sliding plate and the main plate can be adjusted by arranging the adjustable sliding plate, so that the positions of the sliding plate and the main plate are ensured to be in proper positions; the first jacking part is arranged so as to adjust the positions of the left thimble base and the right thimble base; through the arrangement of the first supporting rod and the second supporting rod, the guiding function is achieved on each bearing seat so as to ensure the smooth sliding of the left thimble base and the right thimble base; the second jacking part is arranged so as to adjust the positions of the front thimble base and the rear thimble base; the arrangement of the third support rod and the fourth support rod plays a role in guiding so as to ensure the stable sliding of the front thimble base and the rear thimble base; through arranging structures such as a feed bin and the like, when the rotary cylinder rotates, the blanking block is driven to rotate, so that a workpiece falls into the blanking hopper from the feed bin, and the workpiece is output through the rotary optical axis and is aligned when the workpiece approaches to the sensor; by arranging the feeding cylinder mechanism, when the feeding guide rod cylinder pushes the flat cylinder to move leftwards, the suction nozzle of the suction disc rod corresponds to the workpiece on the rotating optical axis, at the moment, the flat cylinder works, after the suction nozzle sucks the workpiece, the flat cylinder resets, and the feeding guide rod cylinder resets, so that the suction nozzle drives the workpiece to a specified position; the left thimble, the right thimble, the front thimble concave and the rear thimble concave are coaxially arranged to rotate, and when the workpiece is conveyed to the center, the left thimble, the right thimble, the front thimble concave and the rear thimble concave all run to the center to position the workpiece; through setting up curved flower sword mechanism and the straight flower sword mechanism that can the adjustment position, when using curved flower sword to carry out the flower, curved flower sword screw rod slip table action makes curved flower sword hold behind the electric spindle alignment work piece on the seat, and when using straight flower sword to carry out the flower, straight flower sword screw rod slip table action, the work of straight flower portion first servo motor drives main pivot rotation, the connecting plate of main pivot lower extreme rotates, drives straight flower blade disc reciprocating motion, simultaneously, the work of straight flower portion second servo motor drives the self-rotation of straight flower blade disc and carries out the flower to the work piece. The automatic tool changing machine realizes automatic feeding and positioning of workpieces, can automatically change tools, and is accurate in control and high in machining precision.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the principles of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a station mechanism of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 in another direction;

FIG. 4 is a schematic view of the structure between the first and second tightening parts according to the present utility model;

FIG. 5 is a schematic view of the structure of FIG. 4 in another direction;

FIG. 6 is a schematic diagram of the structure of the curved and straight knife mechanisms of the present utility model;

FIG. 7 is a schematic view of the mounting structure of the feeding cylinder mechanism of the present utility model;

FIG. 8 is a schematic diagram of a loading cylinder mechanism according to the present utility model;

FIG. 9 is a schematic diagram of the structure of the loading bin and the adjusting loading mechanism of the utility model;

fig. 10 is a schematic diagram of the installation structure of the loading bin and the feeding mechanism.

In the figure: 1-a frame, 2-a station mechanism, 201-an adjusting seat, 202-a sliding plate, 203-a main plate, 204-a front swing rod shaft, 205-a connecting rod, 206-a rear swing rod shaft, 207-an eccentric wheel, 3-a first propping part, 301-a left thimble base, 302-a left thimble Y-direction adjusting plate, 303-a left thimble Z-direction adjusting plate, 304-a left thimble connecting rod, 305-a left thimble, 306-a right thimble base, 307-a right thimble Y-direction adjusting plate, 308-a right thimble Z-direction adjusting plate, 309-a right thimble connecting rod, 310-a right thimble, 4-a second propping part, 401-a front thimble base, 402-a front thimble Y-direction adjusting plate, 403-a front thimble Z-direction adjusting plate, 404-a front thimble connecting rod, 405-a front thimble concave, 406-a rear thimble base, 407-rear thimble Y-direction adjusting plate, 408-rear thimble Z-direction adjusting plate, 409-rear thimble connecting rod, 410-rear thimble concave, 5-X-axis supporting mechanism, 501-supporting frame, 502-X-axis fixing plate, 6-curved flower cutter mechanism, 601-curved flower cutter screw sliding table, 602-curved flower cutter main plate, 603-curved flower cutter holding seat, 604-electric spindle, 7-straight flower cutter mechanism, 701-straight flower cutter screw sliding table, 702-straight flower cutter main plate, 703-rotating shaft plate, 704-main rotating shaft, 705-straight flower cutter head, 8-feeding cylinder mechanism, 801-feeding guide rod cylinder, 802-Z-direction adjusting plate, 803-flat cylinder, 804-sucking disc rod, 9-feeding bin, 901-bin, 902-blanking block, 903-blanking hopper, 10-adjusting feeding mechanism, 1001-rotating optical axis, 1002-sensing fixing plate and 1003-proximity sensor.

Detailed Description

In order to better understand the solution of the present application, the following description will clearly and completely describe the solution of the embodiment of the present utility model with reference to fig. 1 to 10.

At present, the manual operation and processing efficiency of the manual engraving machine is low, the labor intensity is high, and the requirement of large-scale production and processing cannot be met; meanwhile, along with the increase of jewelry processing modes and patterns, the engraving operation of the same workpiece can be finished by cutting knives of various types, the frequency of workpiece clamping and tool bit calibration is increased, and the improvement of processing efficiency and processing effect is not facilitated. Therefore, the automatic engraving machine comprises a frame, wherein a slide plate capable of adjusting the position is arranged on the frame, a main plate is vertically clamped on the slide plate, a left thimble and a right thimble which are driven by a first driving mechanism and a second driving mechanism are respectively arranged at two ends of the slide plate, the left thimble and the right thimble are coaxially arranged, a front thimble recess and a rear thimble recess are respectively arranged at two ends of the main plate, the front thimble recess and the rear thimble recess are coaxially arranged, the front thimble recess and the rear thimble recess are respectively driven by a third driving mechanism; the machine frame is provided with a feeding cylinder mechanism for conveying the workpiece to the pressing part of the left thimble, the right thimble, the front thimble concave and the rear thimble concave which can position the workpiece; the machine frame is also provided with an X-axis fixing plate driven by an X-axis servo motor, and the X-axis fixing plate is provided with a curved flower cutter mechanism and a straight flower cutter mechanism which are arranged at intervals and can continuously and alternately flower a workpiece.

An embodiment is adopted to explain the above scheme in detail, and for convenience of description, the left-right direction of the top view is set as the horizontal direction, namely the X-axis direction; the vertical direction is the vertical direction, i.e., the Y-axis direction, and the upper side is the rear side and the lower side is the front side.

An automatic engraving machine, as shown in figures 1-3, comprises a frame 1, wherein a frame is arranged at the upper part of the frame 1, a door is arranged on the frame, and the frame is used for enclosing all mechanisms, preventing dust from entering, and ensuring the processing precision; the top of the rack 1 is horizontally provided with a bottom plate, the bottom plate is arranged in a frame, a station mechanism 2 is arranged on the bottom plate, the station mechanism 2 comprises two linear guide rail base plates arranged on the bottom plate, the two linear guide rail base plates are vertically arranged and are arranged at intervals in the horizontal direction, the top surface of each linear guide rail base plate is provided with a positioning groove extending downwards from the top surface, in the vertical direction, the positioning groove penetrates through the linear guide rail base plate, a guide rail is clamped in each positioning groove, a plurality of sliding blocks which are arranged at intervals are respectively and slidingly connected to each guide rail, preferably, the number of the sliding blocks on each guide rail is two, the top surfaces of the four sliding blocks are provided with an adjusting seat 201, the rear end of the adjusting seat 201 is provided with a screw rod connecting plate, the rear end of the screw rod connecting plate is provided with two mounting lug plates, the two mounting lug plates are provided with shaft mounting holes which are coaxially arranged, a front swinging rod 204 is penetrated in the shaft mounting holes, namely, a connecting rod 205 is connected to the front swinging rod 205 through the front swinging rod, the connecting rod 205 is provided with a Y-shaft 205, the rear shaft penetrating hole is arranged at the rear end of the connecting rod 205, and a rear shaft swinging rod 206 penetrates through the shaft hole; the base plate is also provided with a servo motor seat, the servo motor seat is provided with a first servo motor, the first servo motor is in driving connection with an eccentric wheel 207, the eccentric wheel 207 is a Y-axis eccentric wheel 207, and a rear swing rod shaft 206 is arranged on the eccentric wheel 207; the servo motor base is also provided with a proximity switch, the outer surface of the eccentric wheel 207 is also sleeved with an induction ring, and when the induction ring approaches the proximity switch, information is transmitted to the control mechanism. A chute is formed on the top surface of the adjusting seat 201 downwards from the top surface, the chute extends along the horizontal direction of the adjusting seat 201, the cross section of the chute is trapezoidal, and the upper bottom is narrow and the lower bottom is wide; a sliding plate 202 is clamped in the sliding groove, the sliding plate 202 is an X-axis sliding plate 202, namely, the sliding plate 202 is horizontally arranged, the length of the sliding plate 202 is longer than that of the sliding groove, the bottom of the sliding plate 202 is provided with a convex strip, and the cross section of the convex strip is trapezoidal and matched with the positioning groove; a positioning groove is formed in the top surface of the sliding plate 202, a main plate 203 perpendicular to the sliding plate 202 is clamped in the positioning groove, the main plate 203 is arranged in a Y-direction main plate, namely, the main plate 203 is vertically arranged, and the main plate 203 is fixedly arranged in the positioning groove through bolts. When the first servo motor works, the eccentric wheel 207 rotates, so that the rear swing rod shaft 206 drives the connecting rod 205 to move forwards and backwards, the sliding block at the bottom of the adjusting seat 201 slides along the guide rail, and meanwhile, information of the forward and backward movement of the adjusting seat 201 is transmitted to the control mechanism through the arrangement of the proximity switch and the induction ring.

The sliding plate 202 is provided with a first tightening part 3, as shown in fig. 4, the first tightening part 3 is an X-direction tightening part, the X-direction tightening part comprises two supporting plates arranged at intervals on the top surface of the sliding plate 202, and the two supporting plates are a left supporting plate and a right supporting plate, and the left supporting plate and the right supporting plate are respectively positioned at the left end and the right end of the sliding plate 202; the left support plate and the right support plate are respectively provided with a first screw rod penetrating hole, a first support hole and a second support hole which are positioned at two sides of the first screw rod penetrating hole, a first support rod is penetrated between the two corresponding first support holes, and a second support rod is penetrated between the two corresponding second support holes; the right support plate is provided with a second servo motor, the second servo motor is in driving connection with an X-direction reciprocating ball screw, and the X-direction reciprocating ball screw is connected in a first screw rod penetrating hole of the left support plate and a first screw rod penetrating hole of the right support plate through bearings. A first left bearing seat and a first right bearing seat which are arranged at intervals are respectively connected to each first supporting rod through two linear bearings, a second left bearing seat and a second right bearing seat which are arranged at intervals are respectively connected to each second supporting rod through two linear bearings, a left thimble base 301 is connected to the upper support of the first left bearing seat and the second left bearing seat, and a right thimble base 306 is connected to the upper support of the first right bearing seat and the second right bearing seat; an X-direction proximity sensor 1003 is also arranged at the top of the right supporting plate and used for sensing the approaching and distancing of the right thimble base 306; the bottom of the left thimble base 301 is provided with an X left nut connecting seat sleeved on the X-direction reciprocating ball screw, a left nut matched with the reciprocating ball screw is arranged on the X left nut connecting seat, the bottom of the right thimble base 306 is provided with an X right nut connecting seat sleeved on the X-direction reciprocating ball screw, and a right nut matched with the X-direction reciprocating ball screw is arranged on the X right nut connecting seat. When the second servo motor works, the X-direction reciprocating ball screw rotates to drive the X-left nut connecting seat and the X-right nut connecting seat to act, so that the left thimble base 301 on the X-direction reciprocating ball screw drives the first left thimble base and the first right thimble base to slide along the first supporting rod and the second supporting rod respectively, and the right thimble base 306 on the X-direction reciprocating ball screw drives the second left thimble base and the second right thimble base to slide along the first supporting rod and the second supporting rod respectively; the arrangement of the first support bar and the second support bar plays a guiding role to ensure smooth sliding of the left thimble base 301 and the right thimble base 306.

The top surface of the left thimble base 301 is provided with a groove, the front end and the rear end of the groove bottom of the groove are respectively provided with a left fastening screw, the two left fastening screws are arranged in a staggered mode, namely, a space is reserved in the horizontal direction, a left thimble Y-direction adjusting plate 302 is clamped in the groove, the front end and the rear end of the left thimble Y-direction adjusting plate 302 are respectively provided with a left U-shaped groove, and the left fastening screws are clamped in the corresponding left U-shaped grooves so as to limit the left thimble Y-direction adjusting plate 302; the front end of the top surface of the left thimble Y-direction adjusting plate 302 is vertically provided with a left thimble Z-direction adjusting plate 303, the rear side surface of the left thimble Z-direction adjusting plate 303 is provided with a left thimble seat, the left thimble seat is provided with a left connecting rod penetrating hole which is horizontally arranged, the left side of the left thimble seat is provided with a first driving mechanism which is set as a left stepping motor, the output end of the left stepping motor is connected with a left thimble connecting rod 304 through a left coupling, and the left thimble connecting rod 304 penetrates through the left connecting rod penetrating hole to be connected with a left thimble 305; the connection of the left thimble connecting rod 304 and the rear end of the left thimble seat is also provided with a left dustproof nut to prevent dust from entering the left connecting rod through hole.

The top surface of the right thimble base 306 is provided with a groove, the front end and the rear end of the groove bottom of the groove are respectively provided with a right fastening screw, the two right fastening screws are arranged in a staggered mode, namely, a space is reserved in the horizontal direction, a right thimble Y-direction adjusting plate 307 is clamped in the groove, the front end and the rear end of the right thimble Y-direction adjusting plate 307 are respectively provided with a right U-shaped groove, and the right fastening screws are clamped in the corresponding right U-shaped grooves so as to limit the right thimble Y-direction adjusting plate 307; a right thimble Z-direction adjusting plate 308 is vertically arranged at the rear end of the top surface of the right thimble Y-direction adjusting plate 307, a right thimble seat is arranged on the front side surface of the right thimble Z-direction adjusting plate 308, a right connecting rod penetrating hole which is horizontally arranged is arranged on the right thimble seat, a second driving mechanism is arranged on the right side of the right thimble seat, the second driving mechanism is set as a right stepping motor, the output end of the right stepping motor is connected with a right thimble connecting rod 309 through a right coupling, and the right thimble connecting rod 309 penetrates through the right connecting rod penetrating hole and is connected with a right thimble 310; a right dust nut is further provided at the rear end junction of the right ejector pin link 309 and the right ejector pin seat to prevent dust from entering the right link passing hole. The left thimble 305 and the right thimble 310 are coaxially arranged.

The main board 203 is provided with a second tightening part 4, as shown in fig. 5, the second tightening part 4 is a Y-direction tightening part, the Y-direction tightening part comprises two support plates arranged on the main board 203 at intervals, the support plates are a Y-direction support plate, a front support plate and a rear support plate, and the front support plate and the rear support plate are respectively positioned at the front end and the rear end of the main board 203; the front support plate and the rear support plate are respectively provided with a second screw rod penetrating hole, a third support hole and a fourth support hole which are positioned at two sides of the second screw rod penetrating hole, a third support rod is penetrated between the two corresponding third support holes, a fourth support rod is penetrated between the two corresponding fourth support holes, and a Y-direction reciprocating ball screw is penetrated between the two corresponding second screw rod penetrating holes, namely the Y-direction reciprocating ball screw is connected between the front support plate and the rear support plate through a bearing; and a third servo motor is further arranged on the rear supporting plate and is in driving connection with the Y-direction reciprocating ball screw. The third support rod is respectively connected with a third front bearing seat and a third rear bearing seat which are arranged at intervals through two linear bearings, the fourth support rod is respectively connected with a fourth front bearing seat and a fourth rear bearing seat which are arranged at intervals through two linear bearings, front thimble bases 401 are supported and connected on the third front bearing seat and the fourth front bearing seat, and rear thimble bases 406 are supported and connected on the third rear bearing seat and the fourth rear bearing seat; a Y-direction proximity sensor 1003 is also mounted on the top of the rear support plate for sensing the approaching and distancing of the rear thimble base 406; the bottom of the front thimble base 401 is provided with a Y-direction forward nut connecting seat sleeved on the Y-direction reciprocating ball screw, a front nut matched with the Y-direction reciprocating ball screw is arranged on the Y-direction forward nut connecting seat, the bottom of the rear thimble base 406 is provided with a Y-direction rear nut connecting seat sleeved on the Y-direction reciprocating ball screw, and a rear nut matched with the Y-direction reciprocating ball screw is arranged on the Y-direction rear nut connecting seat. When the third servo motor works, the Y-direction reciprocating ball screw rotates to drive the Y-direction forward nut connecting seat and the Y-direction backward nut connecting seat to move, so that the front thimble base 401 on the Y-direction reciprocating ball screw drives the third front thimble base and the fourth front thimble base to slide along the third supporting rod and the fourth supporting rod respectively, the rear thimble base 406 on the Y-direction reciprocating ball screw drives the third rear thimble base and the fourth rear thimble base to slide along the third supporting rod and the fourth supporting rod respectively, and the arrangement of the third supporting rod and the fourth supporting rod plays a guiding role to ensure the stable sliding of the front thimble base 401 and the rear thimble base 406.

The top surface of the front thimble base 401 is provided with a groove, two ends in the horizontal direction of the groove are opened, the left end and the right end of the bottom of the groove are provided with front fastening screws, the two front fastening screws are arranged in a staggered manner, the groove is also internally clamped with a front thimble Y-direction adjusting plate 402, the left end and the right end of the front thimble Y-direction adjusting plate 402 are provided with front U-shaped grooves, and the front fastening screws are clamped in the corresponding front U-shaped grooves so as to limit the front thimble Y-direction adjusting plate 402; a front thimble Z-direction adjusting plate 403 is vertically arranged at the right end of the top surface of the front thimble Y-direction adjusting plate 402, a front thimble seat is arranged on the left side surface of the front thimble Z-direction adjusting plate 403, a front connecting rod penetrating hole which is vertically arranged is arranged on the front thimble seat, a third driving mechanism is arranged at the front side of the front thimble seat, the third driving mechanism is set as a front stepping motor, the output end of the front stepping motor is connected with a front thimble connecting rod 404 through a front coupling, and the front thimble connecting rod 404 penetrates through the front connecting rod penetrating hole and is connected with a front thimble concave 405; a front dust nut is further provided at the junction of the front ejector pin link 404 and the rear end of the front ejector pin seat to prevent dust from entering the front link passing hole.

The top surface of the rear thimble base 406 is provided with a groove, two ends in the horizontal direction of the groove are opened, the left end and the right end of the groove bottom of the groove are respectively provided with rear fastening screws, the two rear fastening screws are arranged in a staggered manner, the groove is also internally clamped with a rear thimble Y-direction adjusting plate 407, the left end and the right end of the rear thimble Y-direction adjusting plate 407 are respectively provided with a rear U-shaped groove, and the rear fastening screws are clamped in the corresponding rear U-shaped grooves so as to fix the rear thimble Y-direction adjusting plate 407 stably; the left end of the top surface of the rear thimble Y-direction adjusting plate 407 is vertically provided with a rear thimble Z-direction adjusting plate 408, the right side surface of the rear thimble Z-direction adjusting plate 408 is provided with a rear thimble seat, the rear thimble seat is provided with a rear connecting rod penetrating hole which is vertically arranged, the rear side of the rear thimble seat is provided with a fourth driving mechanism, the fourth driving mechanism is provided with a rear stepping motor, the output end of the rear stepping motor is connected with a rear thimble connecting rod 409 through a rear coupling, and the rear thimble connecting rod 409 penetrates through the rear connecting rod penetrating hole to be connected with a rear thimble concave 410; the front end junction of back thimble connecting rod 409 and back thimble seat still is provided with back dust nut to prevent that the dust from getting into back connecting rod and passing the hole. The front thimble and the rear thimble are coaxially arranged.

Still be provided with X axle supporting mechanism 5 on the bottom plate, as fig. 6, X axle supporting mechanism 5 is including installing the support frame 501 on the bottom plate, installs the X axle servo motor that the level set up on the support frame 501, is provided with the X axle fixed plate 502 of vertical setting on the X axle servo motor, installs curved flower sword mechanism 6 and the straight flower sword mechanism 7 of vertical setting on the X axle fixed plate 502, and curved flower sword mechanism 6 is located the left side of straight flower sword mechanism 7. The embossing cutter mechanism 6 comprises an embossing cutter screw sliding table 601 arranged on an X-axis fixing plate 502, the embossing cutter screw sliding table 601 is set to be an embedded screw sliding table, an embossing cutter main plate 602 which slides up and down along with the embossing cutter screw sliding table 601 is arranged on the embossing cutter screw sliding table 601, an embossing cutter holding seat 603 is arranged on the embossing cutter main plate 602, and an electric spindle 604 is arranged in the embossing cutter holding seat 603. When the embossing tool screw sliding table 601 works, the embossing tool main plate 602 moves up and down along with the embossing tool screw sliding table, and the motorized spindle 604 can be close to or far away from a workpiece so as to ensure that the workpiece is engraved.

The straight-flower cutter mechanism 7 comprises a straight-flower cutter screw sliding table 701 arranged on an X-axis fixing plate 502, the straight-flower cutter screw sliding table 701 is an embedded screw sliding table, the straight-flower cutter screw sliding table 701 is provided with a straight-flower cutter main plate 702 which slides up and down along with the straight-flower cutter screw sliding table 701, the straight-flower cutter main plate 702 is provided with a rotating shaft plate 703 and a straight-flower part first servo motor which are horizontally arranged at intervals, the rotating shaft plate 703 is of a cuboid structure, the upper bottom surface and the lower bottom surface of the rotating shaft plate 703 are respectively provided with a main shaft penetrating hole, a main rotating shaft 704 is arranged in the main shaft penetrating hole through a deep groove ball bearing, the upper end part of the main rotating shaft 704 is locked through a round nut and a small round nut, and a driven pulley is arranged on a shaft section of the main rotating shaft 704 extending out of the lower bottom surface; the output end of the first servo motor of the straight pattern part is provided with a driving belt pulley, and a synchronous belt is wound on the driving belt pulley and the driven belt pulley; the connecting plate is installed to the lower tip of main pivot 704, the right side of connecting plate is connected with the motor fixed plate perpendicularly, install the straight flower portion second servo motor and the straight flower arbor that vertical interval set up on the motor fixed plate, right upper belt pulley is installed to the output of straight flower portion second servo motor, right lower belt pulley is installed to the right-hand member of straight flower arbor, around being equipped with right belt on right upper belt pulley and the right lower belt pulley, the left end of straight flower arbor, output installs straight flower blade disc 705 promptly for the carving. When the straight cutter screw rod sliding table works, the straight cutter main board 702 moves up and down along with the straight cutter screw rod sliding table, the main rotating shaft 704 drives the connecting board and the motor fixing board to rotate, so that the straight cutter head 705 can be close to or far away from a workpiece, and when the second servo motor of the straight cutter head works, the straight cutter head 705 rotates, so that the workpiece is engraved.

The right side of the support frame 501 is also provided with a feeding cylinder mechanism 8, as shown in fig. 7-8, the feeding cylinder mechanism 8 comprises a feeding driving mechanism drive arranged on the right side of the support frame 501, the feeding driving mechanism drive is provided with a feeding guide rod oil cylinder 801, the feeding guide rod oil cylinder 801 is positioned below an X-axis servo motor, the output end of the feeding guide rod oil cylinder 801 is provided with a Z-direction adjusting plate 802, the Z-direction adjusting plate 802 is obliquely provided with a fixed adjusting plate, the fixed adjusting plate is provided with an L-shaped flat cylinder 803 fixed plate, the top surface of the fixed adjusting plate is provided with two parallel long grooves which are provided with through grooves, each long groove is respectively provided with a fastening bolt, the side surface of the fixed adjusting plate is provided with an adjusting hole, and the adjusting hole is internally provided with an adjusting bolt; two fastening holes which can be respectively corresponding to the long grooves are formed in the long plate of the flat plate cylinder 803 fixing plate, and U-shaped grooves are formed in the short plate; the fastening bolt passes through the strip groove and stretches into the fastening hole, and the adjusting bolt passes through the U-shaped groove and stretches into the adjusting hole, and the position of the fixed plate of the flat plate cylinder 803 is conveniently adjusted to this structure. The bottom surface of the fixed plate of the flat plate cylinder 803 is provided with the flat plate cylinder 803, the output end of the flat plate cylinder 803 is provided with the sucker rod 804, and the end part of the sucker rod 804 is provided with the suction nozzle for feeding.

The left side of the supporting frame 501 is provided with an upper bin 9 and an adjusting and feeding mechanism 10 positioned below the upper bin 9, as shown in fig. 9-10, the upper bin 9 comprises a bin fixing plate arranged on the left side of the supporting frame 501, the bin fixing plate is of an L-shaped structure, the front end part of a long plate of the bin fixing plate is provided with a bin 901, the right lower end of the bin 901 is provided with a notch, the notch comprises a vertical section and an inclined plane, the inclined plane extends from the top of the vertical section to the right upper side, a block mounting hole is formed in the vertical section, a blanking block 902 driven by a rotary cylinder is arranged in the block mounting hole, the blanking block 902 is correspondingly arranged with a blanking hole of the bin 901, and the blanking block 902 is of a cylindrical structure and is provided with a section along the axial direction of the blanking block, namely an incomplete cylinder so as to ensure that a workpiece can fall smoothly through the blanking block 902; the lower end of the block mounting hole is provided with a notch, a blanking hopper 903 is arranged at the notch, and the blanking hopper 903 is larger than the notch in size so as to ensure that workpieces pass through the blanking hopper 903 and prevent the workpieces from falling outside the blanking hopper 903. The adjusting feeding mechanism 10 comprises a feeding dovetail seat arranged on a supporting frame 501, a boss is arranged on the feeding dovetail seat, the boss is of an inverted trapezoid structure, a two-shaft dovetail seat is clamped on the boss, a trapezoid clamping groove matched with the boss is formed in the two-shaft dovetail seat, and the two-shaft dovetail seat is clamped on the feeding dovetail seat; the two end surfaces of the boss are respectively provided with an adjusting plate, each adjusting plate is penetrated with a fastener, the fastener is pressed against or penetrated on the corresponding end surface of the two-shaft dovetail seat, and the fastener can adopt a screw to adjust the extension length of the fastener, so that the position of the two-shaft dovetail seat is adjusted; the dovetail seat is provided with a groove, the dovetail seat is arranged in the groove, the rear side of the dovetail seat is provided with a bolt fixing block, and the bolt fixing block is provided with a bolt for fixing the dovetail seat. The front end part of the dovetail seat is provided with a feeding adjusting plate, a discharging bearing seat is vertically arranged on the feeding adjusting plate, two parallel rotating optical axes 1001 are arranged on the upper part of the discharging bearing seat through bearings, a workpiece conveying channel is formed between the two rotating optical axes 1001, and upper belt pulleys are arranged at the end parts of the two rotating optical axes 1001; the output end of the blanking hopper 903 corresponds to a gap between the two rotating optical axes 1001, a discharging driving mechanism is arranged at the lower part of the discharging bearing seat, the discharging driving mechanism is set as a motor, a lower belt pulley is arranged at the output end of the motor, and a belt is wound on the lower belt pulley and the upper belt pulley; the material discharging bearing seat is further provided with two bearing seat connecting plates, the two bearing seat connecting plates are respectively arranged on the outer sides of the two rotating optical axes 1001, the top surfaces of the two bearing seats are provided with induction fixing plates 1002, the induction fixing plates 1002 are provided with proximity sensors 1003, and the structure is used for straightening a workpiece. During feeding, the rotary air cylinder rotates to drive the blanking block 902 to rotate, so that workpieces fall into the blanking hopper 903 from the stock bin 901, at the moment, the motor works to transmit power to the belt pulley at the end part of the rotary optical axis 1001, so that the rotary optical axis 1001 rotates, the workpieces on the two rotary optical axes 1001 are transmitted to the right side, and the workpieces are aligned when reaching the proximity sensor 1003.

When the device works, firstly, the first servo motor works, the eccentric wheel 207 rotates, the rear swing rod shaft 206 on the eccentric wheel rotates to drive the connecting rod 205 to move forwards and backwards, so that the sliding block at the bottom of the adjusting seat 201 slides along the guide rail, thereby adjusting the sliding plate 202 and the main board 203 to a proper position, the left thimble 305 and the right thimble 310 of the first propping part 3 on the sliding plate 202 are positioned at a proper position, and the front thimble concave 405 and the rear thimble concave 410 of the second propping part 4 on the main board 203 are positioned at a proper position; then, during feeding, the rotary air cylinder rotates to drive the blanking block 902 to rotate so that workpieces fall into the blanking hopper 903 from the stock bin 901, at the moment, the motor works to transmit power to a belt pulley at the end part of the rotary optical axis 1001, so that the rotary optical axis 1001 rotates, the workpieces on the two rotary optical axes 1001 are transmitted to the right side, and the workpieces are aligned when reaching the proximity sensor 1003; then, the feeding guide rod oil cylinder 801 pushes the plate cylinder 803 to move leftwards, so that the suction nozzle of the suction cup rod 804 corresponds to the workpiece on the rotating optical axis 1001, at the moment, the plate cylinder 803 works, after the suction nozzle sucks the workpiece, the plate cylinder 803 resets, the feeding guide rod oil cylinder 801 resets, the suction nozzle drives the workpiece to a specified position, and the left stepping motor, the right stepping motor, the front stepping motor and the rear stepping motor work simultaneously, so that the left thimble 305, the right thimble 310, the front thimble concave 405 and the rear thimble concave 410 all run towards the center to position the workpiece; finally, when the curved flower knife is used for engraving, the X-axis servo motor drives the X-axis fixing plate 502 to move, the curved flower knife screw sliding table 601 moves, the curved flower knife is enabled to hold the electric spindle 604 on the seat 603 to be aligned with a workpiece for processing, when the straight flower knife is used for engraving, the X-axis servo motor drives the X-axis fixing plate 502 to move, the straight flower knife screw sliding table 701 moves, the first servo motor of the straight flower part works, the main rotating shaft 704 is driven to rotate, the connecting plate at the lower end of the main rotating shaft 704 rotates, the straight flower cutter 705 is driven to reciprocate, and meanwhile, the second servo motor of the straight flower part works, and the self-rotation of the straight flower cutter 705 is driven to engrave the workpiece.

The utility model can drive the connecting rod 205 to move back and forth by arranging the eccentric wheel 207 on the first servo motor when the eccentric wheel rotates, so that the sliding block at the bottom of the adjusting seat 201 slides along the guide rail, thereby adjusting the positions of the two-axis adjusting seat to adjust the positions of the sliding plate 202 and the main plate 203 and ensure that the sliding plate 202 and the main plate 203 are at proper positions; by arranging the first tightening part 3, when the second servo motor works, the X-direction reciprocating ball screw rotates to drive the X-direction left nut connecting seat and the X-direction right nut connecting seat to act, so that the left thimble base 301 on the first tightening part drives the first left bearing seat and the first right bearing seat to slide along the first support rod and the second support rod respectively, and the right thimble base 306 on the first tightening part drives the second left bearing seat and the second right bearing seat to slide along the first support rod and the second support rod respectively, thereby adjusting the X-axis sliding plate 202; through the arrangement of the first supporting rod and the second supporting rod, the guiding function is realized on each bearing seat so as to ensure the smooth sliding of the left thimble base 301 and the right thimble base 306; by arranging the second propping part 4, when the third servo motor works, the Y-direction reciprocating ball screw rotates to drive the Y-direction forward nut connecting seat and the Y-direction backward nut connecting seat to move, so that the front thimble base 401 on the Y-direction reciprocating ball screw drives the third front bearing seat and the fourth front bearing seat to slide along the third supporting rod and the fourth supporting rod respectively, and the rear thimble base 406 on the Y-direction reciprocating ball screw drives the third rear bearing seat and the fourth rear bearing seat to slide along the third supporting rod and the fourth supporting rod respectively; by arranging the third supporting rod and the fourth supporting rod, the guiding function is achieved so as to ensure the stable sliding of the front thimble seat 401 and the rear thimble seat 406; through arranging the structures of the feeding bin 9 and the like, when the rotary air cylinder rotates, the blanking block 902 is driven to rotate, so that workpieces fall into the blanking hopper 903 from the feeding bin 901, at the moment, the motor works, power is transmitted to a belt pulley at the end part of the rotary optical axis 1001, the rotary optical axis 1001 rotates, the workpieces on the two rotary optical axes 1001 are transmitted to the right side, and the workpieces are aligned when the workpieces reach the proximity sensor 1003; by arranging the feeding cylinder mechanism 8, when the feeding guide rod oil cylinder 801 pushes the flat cylinder 803 to move leftwards, so that the suction nozzle of the suction cup rod 804 corresponds to a workpiece on the rotating optical axis 1001, at the moment, the flat cylinder 803 works, after the suction nozzle sucks the workpiece, the flat cylinder 803 resets, the feeding guide rod oil cylinder 801 resets, so that the suction nozzle drives the workpiece to a specified position, and the left stepping motor, the right stepping motor, the front stepping motor and the rear stepping motor work simultaneously, so that the left thimble 305, the right thimble 310, the front thimble concave 405 and the rear thimble concave 410 all run towards the center to position the workpiece; through setting up curved flower sword mechanism 6 and straight flower sword mechanism 7 that can the adjustment position, when using curved flower sword to carry out the sculpture, X axle servo motor drives X axle fixed plate 502 motion, curved flower sword screw rod slip table 601 action makes curved flower sword hold behind the electric main shaft 604 alignment work piece of seat 603 and processes, and when using straight flower sword to carry out the sculpture, X axle servo motor drives X axle fixed plate 502 motion, straight flower sword screw rod slip table 701 action, straight flower portion first servo motor work, drive main pivot 704 rotation, the connecting plate of main pivot 704 lower extreme rotates, drive straight flower blade disc 705 reciprocating motion, simultaneously, straight flower portion second servo motor work, drive the rotation of straight flower blade disc 705 and carry out the sculpture to the work piece. The automatic cutting machine realizes automatic feeding and positioning of workpieces, ensures smooth and rapid tool changing and has high machining precision.

The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The automatic engraving machine comprises a frame (1), and is characterized in that a sliding plate (202) is mounted on the frame (1), a main plate (203) is vertically clamped on the sliding plate (202), a left thimble (305) driven by a first driving mechanism and a right thimble (310) driven by a second driving mechanism are respectively arranged at two ends of the sliding plate (202), the left thimble (305) and the right thimble (310) are coaxially arranged, a front thimble concave (405) driven by a third driving mechanism and a rear thimble concave (410) driven by a fourth driving mechanism are respectively arranged at two ends of the main plate (203), and the front thimble concave (405) and the rear thimble concave (410) are coaxially arranged; a feeding cylinder mechanism (8) for conveying the workpiece to the pressing part of the left thimble (305), the right thimble (310), the front thimble concave (405) and the rear thimble concave (410) which can position the workpiece is arranged on the frame (1); the machine frame is also provided with an X-axis fixing plate (502) driven by an X-axis servo motor, and the X-axis fixing plate (502) is provided with a curved flower cutter mechanism (6) and a straight flower cutter mechanism (7) which are arranged at intervals and can continuously and alternately score a workpiece.

2. The automatic engraving machine according to claim 1, characterized in that a first tightening part (3) is arranged on the sliding plate (202), the first tightening part (3) comprises a left supporting plate and a right supporting plate which are arranged on the top surface of the sliding plate (202) at intervals, an X-direction reciprocating ball screw driven by a second servo motor is arranged between the left supporting plate and the right supporting plate, two ends of the X-direction reciprocating ball screw are respectively connected with a left thimble base (301) and a right thimble base (306) through an X left nut and an X right nut, the left thimble (305) is arranged on the left thimble base (301), and the right thimble (310) is arranged on the right thimble base (306).

3. The automatic engraving machine according to claim 2, characterized in that a first support rod and a second support rod positioned at two sides of the X-direction reciprocating ball screw are further installed between the left support plate and the right support plate, the left thimble base (301) is respectively sleeved on the first support rod and the second support rod through a first left bearing seat and a second left bearing seat, and the right thimble base (306) is respectively sleeved on the first support rod and the second support rod through a first right bearing seat and a second right bearing seat.

4. The automatic engraving machine according to claim 1, characterized in that a second tightening part (4) is arranged on the main board (203), the second tightening part (4) comprises a front supporting plate and a rear supporting plate which are arranged on the main board (203) at intervals, a Y-direction reciprocating ball screw driven by a third servo motor is arranged on the front supporting plate and the rear supporting plate, two ends of the Y-direction reciprocating ball screw are respectively connected with a front thimble base (401) and a rear thimble base (406) through a front nut and a rear nut, the front thimble recess (405) is arranged on the front thimble base (401), and the rear thimble recess (410) is arranged on the rear thimble base (406).

5. The automatic engraving machine according to claim 4, characterized in that a third support rod and a fourth support rod positioned at two sides of the Y-direction reciprocating ball screw are further installed between the front support plate and the rear support plate, the front thimble base (401) is respectively sleeved on the third support rod and the fourth support rod through a third front bearing seat and a third rear bearing seat, and the rear thimble base (406) is respectively sleeved on the third support rod and the fourth support rod through a fourth front bearing seat and a fourth rear bearing seat.

6. The automatic engraving machine according to claim 1, characterized in that a stock bin (901) is mounted on the frame (1), a blanking block (902) driven by a rotary cylinder and corresponding to a blanking port of the stock bin (901) and a blanking hopper (903) positioned below the blanking block (902) are mounted on the stock bin (901); the automatic feeding device is characterized in that a discharging bearing seat positioned below the storage bin (901) is further arranged on the frame (1), two rotating optical shafts (1001) driven by a discharging driving mechanism and a bearing seat connecting plate positioned on the outer side of the rotating optical shafts (1001) are arranged on the discharging bearing seat, a conveying workpiece channel is formed between the two rotating optical shafts (1001), an induction fixing plate (1002) is arranged on the bearing seat connecting plate, and a proximity sensor (1003) corresponding to the conveying workpiece channel is arranged on the induction fixing plate (1002).

7. The automatic engraving machine according to claim 1, characterized in that said feeding cylinder mechanism (8) comprises a Z-direction adjusting plate (802) mounted on the frame (1) and driven by a feeding driving mechanism, said Z-direction adjusting plate (802) is provided with a flat cylinder (803) in an inclined manner, the output end of said flat cylinder (803) is provided with a suction cup rod (804), and the end of said suction cup rod (804) is provided with a suction nozzle capable of gripping a workpiece.

8. The automatic engraving machine according to claim 1, characterized in that the engraving cutter mechanism (6) comprises an engraving cutter screw sliding table (601) mounted on an X-axis fixing plate (502), wherein an engraving cutter holding seat (603) is mounted on the engraving cutter screw sliding table (601), and an electric spindle (604) capable of engraving a workpiece is mounted in the engraving cutter holding seat (603).

9. The automatic engraving machine according to claim 8, characterized in that the straight-pattern cutter mechanism (7) comprises a straight-pattern cutter screw sliding table (701) mounted on an X-axis fixing plate (502), a main rotating shaft (704) driven by a first servo motor of a straight-pattern part is mounted on the straight-pattern cutter screw sliding table (701), a straight-pattern cutter shaft driven by a second servo motor of the straight-pattern part is mounted at the lower end of the main rotating shaft (704), and a straight-pattern cutter head (705) capable of engraving a workpiece is mounted at the output end of the straight-pattern cutter shaft.