A medium-speed wire cutting machine tool for automobile stamping parts

Abstract

The present invention relates to the technical field of wire cutting machine tools for automobile parts, and proposes a wire cutting medium-speed machine tool for automobile stamping parts, including a machine tool, a workbench installed on the top of the machine tool, a shaft rod frame installed above the workbench, a large slide rail fixedly installed on the top of the machine tool and on the side away from the workbench, a wire guide rack bolted on the top of the machine tool, and the wire guide rack is fitted with the large slide rail, a cooling component is assembled on the workbench, an electric wire drum is installed on the side of the wire guide rack away from the workbench, and the electric wire drum is installed on the top of the machine tool, and a wire guide flat tube assembly is installed on the side of the wire guide rack facing the workbench and located at the bottom. Through the above technical scheme, the problem that the surface of the cutting wire in the prior art is not clean, and the accumulation and adhesion of the etched material on the surface of the cutting wire will seriously affect the cutting accuracy and progress of the stamping parts, and will seriously affect the processing efficiency and accuracy of the equipment on the stamping parts is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wire cutting machine tools for automobile parts, and in particular to a wire cutting medium-speed machine tool for automobile stamping parts. Background Art

[0002] In the automobile manufacturing process, stamping parts are an indispensable and important part; stamping parts are usually made through stamping technology, however, in actual production, the precision and life of stamping dies have a direct impact on the quality of stamping parts; traditional stamping die manufacturing methods have problems such as low processing efficiency, short die life, and high manufacturing cost; in order to solve these problems, medium-speed wire cutting technology has been introduced into the die manufacturing process; medium-speed wire cutting machine tools have been widely used in die processing due to their high precision, high efficiency and low cost; however, existing medium-speed wire cutting machine tools still have some deficiencies in structural design: for example, the surface of the cutting wire is not clean, and the accumulation and adhesion of etched materials on the surface of the cutting wire will seriously affect the cutting accuracy and progress of the stamping parts, and will seriously affect the processing efficiency and accuracy of the equipment for stamping parts. Summary of the invention

[0003] The present invention proposes a medium-speed wire cutting machine for automobile stamping parts, which solves the problem that the surface of the cutting wire in the related technology is not clean, and the accumulation and adhesion of etched materials on the surface of the cutting wire will seriously affect the cutting accuracy and progress of the stamping parts, and will seriously affect the processing efficiency and accuracy of the equipment on the stamping parts.

[0004] The technical solution of the present invention is as follows:

[0005] A medium-speed wire cutting machine tool for automobile stamping parts comprises a machine tool, a workbench is installed on the top of the machine tool, a shaft rod frame is installed above the workbench, a large slide rail is fixedly installed on the top of the machine tool and on a side away from the workbench, a wire guide frame is bolted to the top of the machine tool, and the wire guide frame is fitted with the large slide rail, a cooling component is assembled on the workbench, an electric wire drum is installed on the side of the wire guide frame away from the workbench, and the electric wire drum is installed on the top of the machine tool, and a wire guide flat tube component is installed on the side of the wire guide frame facing the workbench and located at the bottom;

[0006] The wire guide flat tube assembly comprises a long flat tube installed between the transverse electric screw guide assembly and the working plate, an electric slide is installed at one end of the long flat tube away from the working table, a guide rail frame is installed at the bottom of the electric slide, and the guide rail frame is bolted to the wire guide frame, the long flat tube is slidably installed with the guide rail frame through the electric slide, an upper wire guide nozzle is fixedly installed at one end of the shaft rod frame away from the electric slider, a lower wire guide nozzle is bolted to one end of the long flat tube away from the electric slide, the lower wire guide nozzle is vertically corresponding to the upper wire guide nozzle, and a return hose is connected to the upper wire guide nozzle through the shaft rod frame;

[0007] A fine-pore mesh tube and a coarse-pore mesh tube are fixedly connected to the middle part of the inner side of the long flat tube, and the fine-pore mesh tube and the coarse-pore mesh tube together constitute a complete long tube structure, and the whole of the coarse-pore mesh tube is installed directly below the fine-pore mesh tube through the long flat tube, a fixed guide wheel is rotatably installed on the top of the inner side of the long flat tube, and the fixed guide wheel is installed through the fine-pore mesh tube for guiding the cutting wire passing through the inner side of the long tube structure, a liquid injection pipe valve is connected to the middle part of the bottom of the long flat tube, a slag collecting bucket is fittedly installed on the bottom of the inner side of the long flat tube, and oblique openings are evenly spaced on one side of the coarse-pore mesh tube away from the fine-pore mesh tube, and the openings of the oblique openings point to the slag collecting bucket, a baffle is fixedly connected to the inner side of the coarse-pore mesh tube and at the oblique opening, and the free end of the baffle is inclined toward the end away from the guide rail frame, and a sealing plate is fixedly connected to the end of the slag collecting bucket away from the liquid injection pipe valve, and the sealing plate is sealingly installed with the long flat tube.

[0008] Preferably, the workbench includes a longitudinal electric linear guide assembly installed on the top of the machine tool, a working plate is installed on the longitudinal electric linear guide assembly, and the working plate is slidably installed with the machine tool through the longitudinal electric linear guide assembly, a transverse electric screw guide assembly is installed on the top of the working plate, and a crossbeam plate is slidably installed on the transverse electric screw guide assembly in a left-right symmetrical manner, a screw hole is opened through the top of the crossbeam plate, and a vertical clamp is installed on the top of the crossbeam plate through the screw hole, the number of the crossbeam plates is two, and horizontal clamps are installed on the middle bolts of the back surfaces of the two crossbeam plates, and the vertical clamps and the horizontal clamps are both used for clamping stamping parts, a rectangular groove is opened in the middle of the top of the working plate, and a filter screen is embedded and installed in the rectangular groove opened on the top of the working plate, and the filter screen is used in conjunction with the rectangular groove to filter and recover coolant.

[0009] Preferably, a large slide is slidably installed on the large slide rail, an electric slider is slidably installed on the top of the large slide, a right-angle clamp frame is installed on the top of the electric slider, a U-shaped screw frame is installed on the side of the right-angle clamp frame facing away from the shaft rod frame, the shaft rod frame is positioned and installed with the electric slider through the right-angle clamp frame and the U-shaped screw frame, and a servo cylinder is installed on the side of the large slide facing away from the electric slider.

[0010] Preferably, a right-angle plate frame is bolted to one side of the servo cylinder facing away from the wire guide frame, a folding plate is installed at one end of the servo cylinder facing away from the shaft rod frame, the folding plate is bolted to the large slide, a piston rod is installed in the middle of the inner side of the servo cylinder, the piston rod passes through the folding plate and is bolted to the right-angle plate frame, a U-shaped rail is bolted to one side of the large slide rail facing away from the shaft rod frame, and the U-shaped rail is used to limit and block the vertical lifting height of the large slide on the large slide rail.

[0011] Preferably, a tension sensor is installed on the side of the wire guide frame facing away from the workbench, and the tension of the cutting wire is detected in real time by the tension sensor to assist the equipment in regulating the tension of the cutting wire. A tensioning piece is bolted to the side of the wire guide frame facing the workbench, and a straight guide wheel is installed below the tension sensor. The number of the straight guide wheels is three, and the straight guide wheel is rotatably installed with the wire guide frame. A tensioning guide wheel is installed above the tension sensor, and the tensioning guide wheel is rotatably installed with the wire guide frame. The tensioning guide wheel is slidably installed with the wire guide frame through the tensioning piece, and a U-shaped frame is bolted on the shaft rod frame, and a lower guide wheel is rotatably installed on the inner side of the U-shaped frame, and the tensioning guide wheel has the same structure as the lower guide wheel, and a torsion bar is threadedly connected to the middle part of a side of the tensioning piece close to the workbench, and top rods are installed around the torsion bar in a left-right symmetrical shape.

[0012] Preferably, the left and right sides of the tensioning guide wheel are rotatably connected with square plates, the number of the square plates is two, and the top rod is rotatably connected to the square plates, short screw rods are threadedly installed at the four corners of the side of the tensioning guide wheel in contact with the wire guide frame, and a slide groove is horizontally provided on the surface where the wire guide frame and the square plate are installed, the tensioning guide wheel is slidably installed with the wire guide frame through the cooperation of the short screw rod and the slide groove on the square plate, and the tensioning guide wheel is tensioned and installed with the wire guide frame through the cooperation of the torsion rod and the top rod on the tensioning member.

[0013] Preferably, a U-shaped plate is installed between the two square plates, one end of the U-shaped plate is hinged to one square plate, and the other end of the U-shaped plate is meshed with the other square plate, and a helical tooth groove is opened in the middle of the non-hinged end of the U-shaped plate, and a helical gear is installed in the middle of the inner side of the helical tooth groove, and the side of the helical gear is connected with soft teeth, and the soft teeth are made of elastic material, and the helical gear rotates clockwise and counterclockwise with the U-shaped plate through the cooperation of the soft teeth and the helical gear, and a DD motor is fixedly installed on the square plate close to the helical gear, and the output end of the DD motor passes through the square plate and is installed with the helical gear pin, and the helical gear is rotatably installed with the square plate through the DD motor.

[0014] Preferably, the cooling assembly includes a coolant tank fixedly mounted on the bottom of the working plate, a liquid pump fixedly mounted on the coolant tank, an output end of the liquid pump is connected to a three-way conduit, an end of the three-way conduit away from the liquid pump is connected to a straight pipe, the straight pipe is vertically inserted into the working plate, a reflux pump is installed on the coolant tank and on the same side of the liquid pump, an input end of the reflux pump passes through the working plate and is connected to the rectangular groove, and an output end of the reflux pump is connected to a reflux hose, and an end of the reflux hose away from the reflux pump is connected to the shaft frame.

[0015] Preferably, a hoop frame is mounted on the surface of the straight tube, and the hoop frame is bolted to the working plate, a first gear motor is installed on the top of the working plate, a gear cylinder 1 is mounted at the connecting portion between the straight tube and the working plate, the gear cylinder 1 is rotatably mounted with the working plate, the gear cylinder 1 is meshed with the first gear motor, and the straight tube is rotatably mounted with the working plate through the gear cylinder 1 and the first gear motor.

[0016] Preferably, a square tube is connected to the top of the straight tube, and an angle adjustment component 2 is installed on the square tube. The angle adjustment component 2 has the same structure as the first gear motor, and is composed of a micro motor and a driving gear. The micro motor is meshed with the corresponding structure through the driving gear to achieve automatic change of the corresponding structural angle. A tooth cylinder 2 is rotatably connected to the portion of the square tube that is flush with the output end of the angle adjustment component 2. The tooth cylinder 2 is meshed and installed with the angle adjustment component 2. A ball head rotating tube is hinged on the middle part of the inner side of the tooth cylinder 2. The ball head rotating tube is rotatably installed with the square tube through the cooperation of the tooth cylinder 2 and the angle adjustment component 2. The end of the ball head rotating tube away from the tooth cylinder 2 is connected to a nozzle, and a position sensor is mounted on the surface of the nozzle.

[0017] The working principle and beneficial effects of the present invention are:

[0018] 1. In the present invention, the coolant stored in the coolant tank is transferred to the straight pipe through the three-way conduit by a liquid pump, and then the coolant is sprayed from the nozzle to the cutting station through the square tube and the ball-end rotating tube. The nozzles at the three points in the figure are used to spray the cutting station from different directions, so that multi-angle cooling of the cutting station can be achieved, which can not only ensure the working temperature of the cutting wire, but also stabilize the surface temperature of the stamping parts. At the same time, the waste residue on the surface of the stamping parts can be washed away in time to prevent the residue from being retained in the cutting gap and affecting the cutting efficiency and cutting effect, thereby improving the cutting accuracy and cutting efficiency.

[0019] 2. In the present invention, by setting up a large slide rail, the tension of the cutting wire can be roughly adjusted over a large range through the vertical lifting movement of the large slide table on the large slide rail. At the same time, the axial tension length of the cutting wire between the upper wire guide nozzle and the lower wire guide nozzle can be shortened, and the effective operating length of the cutting wire between the upper wire guide nozzle and the lower wire guide nozzle can be shortened, thereby realizing adaptive adjustment of different sizes of stamping parts.

[0020] 3. In the present invention, by activating the electric slider and the electric slide, the initial axial installation position of the cutting wire on the inner side of the transverse electric screw guide assembly can be changed, and the total length of the cutting wire extending out of the electric wire drum guide can be adjusted, thereby realizing self-regulation of the use length of the cutting wire, and the tensioning state of the cutting wire can be adjusted in the front and rear directions, providing an additional cutting wire tensioning adjustment mechanism in addition to the tensioning guide wheel, so that the cutting wire of the equipment can be used under different working conditions, expanding the different working conditions and usage requirements that the cutting wire of the equipment can cope with, and improving the diversity and practicality of the equipment functions.

[0021] 4. In the present invention, while the electric slider is enabled to slide back and forth on the large slide table, the servo cylinder also needs to be enabled synchronously. The servo cylinder drives the piston rod, and one end of the piston rod is passed through the folding plate and positioned by bolting on the right-angle plate frame, and the servo cylinder and the electric slider are bolted together for sliding movement on the right-angle plate frame. The electric slider can stably support the shaft rod frame and the cutting wire while stably making high-precision sliding adjustments on the large slide table, ensuring that with the cooperation of the electric slide table, when the electric slider adjusts the cutting wire in the front and rear positions, the tensioning force of the cutting wire on the upper wire guide nozzle and the lower guide wheel is eliminated, so that the cutting wire can be accurately adjusted to a specific position in the front and rear positions, ensuring that the cutting wire of the equipment can be tensioned and adjusted in multiple ways, while ensuring that the cutting accuracy of the cutting wire is not affected, and no local deviation occurs, thereby ensuring the cutting quality.

[0022] 5. In the present invention, when the wire guide flat tube assembly is passed, a proper amount of coolant is injected into the inner side of the long flat tube through the injection pipe valve, so that the coolant just covers the cutting wire, and the cutting wire can be immersed in the coolant under the steady guidance of the cutting wire inside the long tube structure and the fixed guide wheel, and under the guiding contact of the fixed guide wheel and the impact of the cutting wire in reciprocating motion, the baffle plate blocks the reverse flow of the coolant that drives the cut wire to move in one direction, so that the debris attached to the cutting wire can be impacted off, and under the interception and guidance of the baffle plate, the debris is guided from the oblique mouth into the slag collection In the bucket, the slag is collected separately by the slag collecting bucket. In this process, the cutting wire in reciprocating motion and the lasing effect when the liquid is blocked by the reverse push flow can be used to complete the automatic cleaning of the cutting wire, thereby ensuring the dielectric constant and insulation strength of the cutting wire and the coolant, allowing the cutting wire to maintain a balanced spark explosion force, reducing the adhesion of debris on the surface of the cutting wire, and assisting in maintaining the speed of the cutting wire in the reciprocating motion process, maintaining the effective processing time of the cutting wire, ensuring the cleanliness of the cutting wire surface and the cutting accuracy, and improving the quality of the processed workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 It is a schematic diagram of the external structure of a wire cutting medium-speed machine tool for automobile stamping parts of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the workbench of the present invention;

[0026] Figure 3 It is a schematic diagram of the assembly structure of the wire guide flat tube assembly and the working plate of the present invention;

[0027] Figure 4 It is a schematic diagram of the partial assembly structure of the shaft rod frame and the large slide rail of the present invention;

[0028] Figure 5 It is a schematic diagram of the assembly structure of the wire guide frame and the wire guide flat tube assembly of the present invention;

[0029] Figure 6 It is a schematic diagram of the partial assembly structure of the lower guide wheel and the shaft rod frame of the present invention;

[0030] Figure 7 It is a schematic diagram of the partial assembly structure of the tensioning member and the tensioning guide wheel of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the tensioning guide wheel of the present invention;

[0032] Fig. 9 This is a schematic diagram of the bottom structure of the working board of the present invention;

[0033] Fig.10 It is a schematic diagram of the partial assembly structure of the first gear motor and the straight pipe of the present invention;

[0034] Fig.11 It is a schematic diagram of the partial assembly structure of the nozzle and the straight pipe of the present invention;

[0035] Fig.12 It is a schematic diagram of the internal structure of the long flat tube of the present invention.

[0036] In the figure: 1, machine tool; 2, workbench; 3, shaft rod frame; 4, large slide rail; 5, wire guide frame; 6, cooling assembly; 7, electric wire drum; 8, wire guide flat tube assembly; 21, work plate; 22, longitudinal electric linear guide rail assembly; 23, transverse electric screw guide assembly; 24, crossbeam plate; 25, vertical clamp; 26, horizontal clamp; 27, filter screen; 41, large slide; 42, electric slider; 43, right-angle clamp frame; 44, U-shaped screw frame; 45, servo cylinder; 46, right-angle plate frame; 47, folding plate; 48, piston rod; 49, U-shaped rail; 51, tension sensor; 52, tensioning member; 53, straight guide wheel; 54, tensioning guide wheel; 55, lower guide wheel; 56, U-shaped frame; 57, torsion bar; 58, top rod; 541, square plate; 542, short screw; 5 43, U-shaped plate; 544, helical tooth groove; 545, helical gear; 546, soft tooth; 547, DD motor; 61, coolant tank; 62, liquid pump; 63, three-way conduit; 64, straight pipe; 65, return pump; 66, return hose; 67, square pipe; 68, position sensor; 69, nozzle; 641, hoop frame; 642, first gear motor; 643, tooth cylinder one ; 671, angle adjustment component 2; 672, tooth cylinder 2; 673, ball head rotating tube; 81, long flat tube; 82, guide rail frame; 83, electric slide; 84, upper wire guide nozzle; 85, lower wire guide nozzle; 811, fine-pore mesh tube; 812, coarse-pore mesh tube; 813, fixed guide wheel; 814, injection pipe valve; 815, slag collecting bucket; 816, oblique mouth; 817, baffle; 818, sealing plate. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] Example 1

[0039] like Figures 1 to 12 As shown, this embodiment proposes: a wire cutting medium-speed wire machine tool for automobile stamping parts, including a machine tool 1, a workbench 2 is installed on the top of the machine tool 1, a shaft rod frame 3 is installed above the workbench 2, a large slide rail 4 is fixedly installed on the top of the machine tool 1 and on the side away from the workbench 2, a wire guide frame 5 is bolted to the top of the machine tool 1, and the wire guide frame 5 is installed in close contact with the large slide rail 4, a cooling component 6 is assembled on the workbench 2, an electric wire drum 7 is installed on the side of the wire guide frame 5 away from the workbench 2, and the electric wire drum 7 is installed on the top of the machine tool 1, and a wire guide flat tube assembly 8 is installed on the side of the wire guide frame 5 facing the workbench 2 and located at the bottom;

[0040] The wire guide flat tube assembly 8 includes a long flat tube 81 installed between the transverse electric screw guide assembly 23 and the working plate 21, an electric slide 83 is installed at one end of the long flat tube 81 away from the working table 2, a guide rail frame 82 is installed at the bottom of the electric slide 83, and the guide rail frame 82 is bolted to the wire guide frame 5, the long flat tube 81 is slidably installed with the guide rail frame 82 through the electric slide 83, an upper wire guide nozzle 84 is fixedly installed at one end of the shaft rod frame 3 away from the electric slider 42, a lower wire guide nozzle 85 is bolted to one end of the long flat tube 81 away from the electric slide 83, the lower wire guide nozzle 85 is vertically corresponding to the upper wire guide nozzle 84, and the return hose 66 is connected to the upper wire guide nozzle 84 through the shaft rod frame 3;

[0041] A fine-pore mesh tube 811 and a coarse-pore mesh tube 812 are fixedly connected to the middle of the inner side of the long flat tube 81, and the fine-pore mesh tube 811 and the coarse-pore mesh tube 812 together constitute a complete long tube structure, and the coarse-pore mesh tube 812 is installed directly below the fine-pore mesh tube 811 through the long flat tube 81. A fixed guide wheel 813 is rotatably installed on the top of the inner side of the long flat tube 81, and the fixed guide wheel 813 is installed through the fine-pore mesh tube 811 to guide the cutting wire passing through the inner side of the long tube structure. The middle part of the bottom of the long flat tube 81 is connected to the injection pipe valve 81 4. A slag collecting bucket 815 is fitted on the bottom of the inner side of the long flat tube 81. Bevel openings 816 are provided at equal intervals on one side of the coarse-pore mesh tube 812 away from the fine-pore mesh tube 811. The opening of the bevel opening 816 points to the slag collecting bucket 815. A baffle 817 is fixedly connected to the inner side of the coarse-pore mesh tube 812 and located at the bevel opening 816. The free end of the baffle 817 is inclined toward the end away from the guide rail frame 82. A sealing plate 818 is fixedly connected to the end of the slag collecting bucket 815 away from the injection pipe valve 814. The sealing plate 818 is sealed and installed with the long flat tube 81.

[0042] The workbench 2 includes a longitudinal electric linear guide assembly 22 installed on the top of the machine tool 1, a working plate 21 is installed on the longitudinal electric linear guide assembly 22, and the working plate 21 is slidably installed with the machine tool 1 through the longitudinal electric linear guide assembly 22, a transverse electric screw guide assembly 23 is installed on the top of the working plate 21, and a cross beam plate 24 is slidably installed on the transverse electric screw guide assembly 23 in a left-right symmetrical manner, a screw hole is opened through the top of the cross beam plate 24, and a vertical clamp 25 is installed on the top of the cross beam plate 24 through the screw hole. There are two cross beam plates 24, and horizontal clamps 26 are installed on the middle bolts of the back surfaces of the two cross beam plates 24. The vertical clamps 25 and the horizontal clamps 26 are both used for clamping stamping parts, and a rectangular groove is opened in the middle of the top of the working plate 21, and a filter screen 27 is embedded and installed in the rectangular groove opened on the top of the working plate 21. The filter screen 27 is used in conjunction with the rectangular groove to filter and recover coolant.

[0043] A large slide 41 is slidably installed on the large slide rail 4, an electric slider 42 is slidably installed on the top of the large slide 41, a right-angle clamping frame 43 is installed on the top of the electric slider 42, a U-shaped screw frame 44 is installed on the side of the right-angle clamping frame 43 facing away from the shaft rod frame 3, the shaft rod frame 3 is positioned and installed with the electric slider 42 through the right-angle clamping frame 43 and the U-shaped screw frame 44, and a servo cylinder 45 is installed on the side of the large slide 41 facing away from the electric slider 42.

[0044] A right-angle plate frame 46 is bolted to the side of the servo cylinder 45 facing away from the wire guide frame 5, a folding plate 47 is installed at the end of the servo cylinder 45 facing away from the shaft rod frame 3, the folding plate 47 is bolted to the large slide 41, a piston rod 48 is installed in the middle of the inner side of the servo cylinder 45, the piston rod 48 passes through the folding plate 47 and is bolted to the right-angle plate frame 46, a U-shaped rail 49 is bolted to the side of the large slide rail 4 facing away from the shaft rod frame 3, the U-shaped rail 49 is used to limit and block the vertical lifting height of the large slide 41 on the large slide rail 4.

[0045] A tension sensor 51 is installed on the side of the wire guide frame 5 facing away from the workbench 2, and a tensioning member 52 is bolted to the side of the wire guide frame 5 facing the workbench 2. A straight guide wheel 53 is installed below the tension sensor 51. The number of straight guide wheels 53 is three. Figure 5 In the structure, the straight guide wheels 53 are recorded as the first guide wheel, the second guide wheel and the third guide wheel from bottom to top, and the straight guide wheels 53 are rotatably installed with the wire guide frame 5. A tensioning guide wheel 54 is installed above the tension sensor 51 for adjusting the tension of the cutting wire to ensure the stability and accuracy of the cutting process and keep the cutting wire always in an optimal tension state. The tensioning guide wheel 54 is rotatably installed with the wire guide frame 5, and the tensioning guide wheel 54 is slidably installed with the wire guide frame 5 through the tensioning member 52. A U-shaped frame 56 is bolted on the shaft rod frame 3, and a lower guide wheel 55 is rotatably installed on the inner side of the U-shaped frame 56. The tensioning guide wheel 54 has the same structure as the lower guide wheel 55. A torsion bar 57 is threadedly connected to the middle of a side of the tensioning member 52 close to the workbench 2, and a top rod 58 is installed around the torsion bar 57 in a left-right symmetrical shape.

[0046] The left and right sides of the tensioning guide wheel 54 are rotatably connected with square plates 541, there are two square plates 541, and the top rod 58 is rotatably connected to the square plates 541. Short screw rods 542 are threadedly installed at the four corners of the side of the tensioning guide wheel 54 that contacts the wire guide frame 5. A sliding groove is horizontally provided on the surface where the wire guide frame 5 and the square plate 541 are installed. The tensioning guide wheel 54 is slidably installed with the wire guide frame 5 through the cooperation of the short screw rod 542 and the sliding groove on the square plate 541, and the tensioning guide wheel 54 is tensioned and installed with the wire guide frame 5 through the cooperation of the torsion rod 57 and the top rod 58 on the tensioning member 52.

[0047] The cooling assembly 6 includes a coolant tank 61 fixedly installed at the bottom of the working plate 21, a liquid pump 62 fixedly installed on the coolant tank 61, the output end of the liquid pump 62 is connected to a three-way conduit 63, the end of the three-way conduit 63 away from the liquid pump 62 is connected to a straight pipe 64, the straight pipe 64 is vertically inserted into the working plate 21, and a reflux pump 65 is installed on the coolant tank 61 and on the same side of the liquid pump 62. The input end of the reflux pump 65 passes through the working plate 21 and is connected to the rectangular groove, and the output end of the reflux pump 65 is connected to a reflux hose 66, and the end of the reflux hose 66 away from the reflux pump 65 is connected to the shaft rod frame 3.

[0048] In this embodiment: before use, the cutting wire on the electric wire reel 7 is first passed through the front side of the second guide wheel, and then through the tension sensor 51 from the rear side of the third guide wheel, and then passed from the back side of the tensioning guide wheel 54 to the top of the lower guide wheel 55, and under the guidance of the lower guide wheel 55, it passes through the upper wire guide nozzle 84 and enters the lower wire guide nozzle 85, and then enters through the lower wire guide nozzle 85 into the long tube structure composed of the coarse-pore mesh tube 812 and the fine-pore mesh tube 811 on the inner side of the long flat tube 81, and is guided by three fixed guide wheels 813 inserted side by side on the inner side of the fine-pore mesh tube 811 in the long tube structure, and then passes through the electric slide 83 to the bottom of the first guide wheel, and the cutting wire is guided back to the electric wire reel 7 through the first guide wheel for reciprocating cutting.

[0049] When in use, the stamping part is first tightened by the vertical clamp 25 and the horizontal clamp 26 through common threads, and the stamping part is clamped and locked on the two crossbeam plates 24. Then the longitudinal electric linear guide assembly 22 and the transverse electric screw guide assembly 23 are activated to move the stamping part to the part to be processed so that the part to be processed is in contact with the cutting wire. Subsequently, the electric wire drum 7 is activated to drive the cutting wire to reciprocate, and the longitudinal electric linear guide assembly 22 and the transverse electric screw guide assembly 23 are synchronously activated to move relative to the cutting wire. The specific installation set cutting shape is used to drive the stamping part to move, thereby completing the cutting of the stamping part.

[0050] During use, the liquid pump 62 needs to be activated to transfer the coolant stored in the coolant tank 61 to the straight pipe 64 through the three-way conduit 63, and then the coolant is sprayed from the nozzle 69 to the cutting station through the square pipe 67 and the ball head rotating pipe 673. Figure 1 The nozzles 69 pairs at the three points in the middle spray the cutting station from different directions, which can realize multi-angle cooling of the cutting station, which can not only ensure the working temperature of the cutting wire, but also stabilize the surface temperature of the stamping parts. At the same time, it can also timely wash away the waste residue on the surface of the stamping parts to prevent the residue from being retained in the cutting gap and affecting the cutting efficiency and cutting effect, thereby improving the cutting accuracy and cutting efficiency.

[0051] Through the setting of the large slide rail 4, the tension of the cutting wire can be roughly adjusted over a large range through the vertical lifting movement of the large slide table 41 on the large slide rail 4. At the same time, it is also possible to shorten the axial tension length of the cutting wire between the upper wire guide nozzle 84 and the lower wire guide nozzle 85, shorten the effective operating length of the cutting wire between the upper wire guide nozzle 84 and the lower wire guide nozzle 85, and realize adaptive adjustment of different sizes of stamping parts.

[0052] By simultaneously activating the electric slider 42 and the electric slide 83, the initial axial installation position of the cutting wire on the inner side of the transverse electric screw guide assembly 23 can be changed, and the total length of the cutting wire extending from the electric wire reel 7 can be adjusted, thereby realizing self-regulation of the use length of the cutting wire. The tensioning state of the cutting wire can also be adjusted in the front and rear directions, providing an additional cutting wire tensioning adjustment mechanism in addition to the tensioning guide wheel 54, so that the cutting wire of the equipment can be used under different working conditions, expanding the different working conditions and usage requirements that the cutting wire of the equipment can cope with, and improving the diversity and practicality of the equipment functions.

[0053] Among them, by enabling the electric slider 42 to slide back and forth on the large slide 41, the servo cylinder 45 needs to be enabled synchronously, and the servo cylinder 45 drives the piston rod 48, and uses one end of the piston rod 48 to pass through the folding plate 47 and be bolted and positioned on the right-angle plate frame 46, and the right-angle plate frame 46 bolts the servo cylinder 45 and the electric slider 42 for sliding movement. The electric slider 42 can stably support the shaft rod frame 3 and the cutting wire, and can also stably perform high-precision sliding adjustment on the large slide 41 to ensure that with the cooperation of the electric slide 83, when the electric slider 42 adjusts the cutting wire in the front and rear positions, the tension force of the cutting wire on the upper wire guide nozzle 84 and the lower guide wheel 55 is eliminated, so that the cutting wire can be accurately adjusted to a specific position in the front and rear positions, ensuring that the cutting wire of the equipment can be tensioned and adjusted in multiple ways, while ensuring that the cutting accuracy of the cutting wire is not affected, and no local deviation occurs, thereby ensuring the cutting quality.

[0054] When the wire guide flat tube assembly 8 is used, a proper amount of coolant is injected into the inner side of the long flat tube 81 through the liquid injection pipe valve 814, so that the coolant just covers the cutting wire, and the cutting wire can be immersed in the coolant under the stable guidance of the cutting wire inside the long tube structure and the fixed guide wheel 813, and under the guiding contact of the fixed guide wheel 813 and the impact of the cutting wire in reciprocating motion, the baffle 817 blocks the reverse flow of the coolant driven by the cut wire in one direction, so that the debris attached to the cutting wire can be impacted off, and under the interception and guidance of the baffle 817, the debris is guided from the oblique mouth 816 The waste is introduced into the slag collecting bucket 815 and collected separately by the slag collecting bucket 815. In this process, the cutting wire can be automatically cleaned by the cutting wire in reciprocating motion and the sputtering effect when the liquid is blocked by the reverse thrust flow, thereby ensuring the dielectric constant and insulation strength of the cutting wire and the coolant, allowing the cutting wire to maintain a balanced spark explosion force, reducing the adhesion of debris on the surface of the cutting wire, and assisting in maintaining the speed of the cutting wire during the reciprocating motion, thereby maintaining the effective processing time of the cutting wire, ensuring the cleanliness of the cutting wire surface and the cutting accuracy, and improving the quality of the processed workpiece.

[0055] After the debris is collected separately by the slag collecting bucket 815, the cooling liquid inside the long flat tube 81 can be taken out, and the sealing plate 818 embedded and installed at one end of the long flat tube 81 can be manually pulled out to clean the debris separately.

[0056] Example 2

[0057] like Figure 8 As shown, on the basis of Example 1, this embodiment proposes that a U-shaped plate 543 is installed between two square plates 541, one end of the U-shaped plate 543 is hinged to one square plate 541, and the other end of the U-shaped plate 543 is meshed and installed with the other square plate 541, and a bevel tooth groove 544 is opened in the middle of the non-hinged end of the U-shaped plate 543, and a bevel gear 545 is installed in the middle of the inner side of the bevel tooth groove 544, and a soft tooth 546 is connected to the side of the bevel gear 545, and the soft tooth 546 is made of elastic material, and the bevel gear 545 rotates clockwise and counterclockwise with the U-shaped plate 543 through the soft tooth 546 and the bevel gear 545. A DD motor 547 is fixedly installed on the square plate 541 close to the bevel gear 545, and the output end of the DD motor 547 passes through the square plate 541 and is installed with the bevel gear 545 by a pin, and the bevel gear 545 is rotatably installed with the square plate 541 through the DD motor 547.

[0058] When the tensioning guide wheel 54 is used to adjust the tensioning degree of the cutting wire: by manually twisting the torsion rod 57, the threaded installation of the torsion rod 57 and the tensioning member 52 is utilized, so that the top rod 58 drives the tensioning guide wheel 54 to slide along the front-to-back direction in the slide groove provided on the wire guide frame 5, thereby changing the tensioning strength of the tensioning guide wheel 54 on the cutting wire, and realizing fine tensioning adjustment of the cutting wire in a small range.

[0059] It is also possible to enable the DD motor 547 to drive the bevel gear 545 to rotate, and utilize the soft teeth 546 to rotate clockwise and engage with the bevel tooth groove 544 in the middle of the inner side of the bevel tooth groove 544 to block counterclockwise, so as to achieve shielding and protection around the tensioning guide wheel 54, and achieve small-range limited shielding and protection of the cutting wire passing through the tensioning guide wheel 54. When the cutting wire accidentally breaks, it can achieve a small-range limitation on the movement range of the cutting wire when it breaks, to prevent the cutting wire from running around and injuring people, and also help the operator quickly find the broken cutting wire for subsequent reuse after connection, so as to facilitate the rapid resumption of cutting operations.

[0060] At the same time, the soft teeth 546 are designed to rotate clockwise and engage with the bevel groove 544 on the inner side of the bevel groove 544 to block the structure in a counterclockwise manner. Once the cutting wire on the equipment runs abnormally, the cutting wire of the equipment will have a clockwise cutting tendency to move forward under the design of the above structure, without a tendency to loosen, break or spatter backward. The U-shaped plate 543 can be combined with the azimuth design of blocking the cutting wire to the rear side to avoid the swing amplitude and running range of the cutting wire during the breakage period, so as to find the broken part of the cutting wire in time and reduce the damage to the operator or stamping parts when the phenomenon occurs, so that the equipment itself has a certain safety protection operation mechanism.

[0061] Example 3

[0062] like Figure 8 As shown, based on embodiments 1 and 2, this embodiment proposes, please refer to Fig.10 and Fig.11 As shown, a hoop frame 641 is mounted on the surface of the straight tube 64, and the hoop frame 641 is bolted to the working plate 21, a first gear motor 642 is installed on the top of the working plate 21, a gear cylinder 643 is mounted on the plug-in portion between the straight tube 64 and the working plate 21, the gear cylinder 643 is rotatably mounted on the working plate 21, the gear cylinder 643 is meshed with the first gear motor 642, and the straight tube 64 is rotatably mounted on the working plate 21 through the cooperation of the gear cylinder 643 and the first gear motor 642.

[0063] A square tube 67 is connected to the top of the straight tube 64, and an angle adjustment component 671 is installed on the square tube 67. The angle adjustment component 671 has the same structure as the first gear motor 642. A gear cylinder 672 is rotatably connected to a portion of the square tube 67 that is flush with the output end of the angle adjustment component 671. The gear cylinder 672 is meshed with the angle adjustment component 671. A ball head rotating tube 673 is hinged on the middle part of the inner side of the gear cylinder 672. The ball head rotating tube 673 is rotatably installed with the square tube 67 through the gear cylinder 672 and the angle adjustment component 671. The end of the ball head rotating tube 673 away from the gear cylinder 672 is connected to a nozzle 69, and a position sensor 68 is mounted on the surface of the nozzle 69.

[0064] When in use, during the use of the cooling component 6, the position sensors 68 installed at three azimuth angles can be used to monitor the processing parts of the stamping parts in real time from multiple angles, so as to timely enable the first gear motor 642 to engage with the tooth cylinder 1 643, enable the angle adjustment component 2 671 to engage with the tooth cylinder 2 672, drive the straight tube 64 to rotate and adjust around its own axis, and drive the nozzle 69 connected to the ball head rotating tube 673 to rotate around the axis of the tooth cylinder 2 672, so as to jointly and autonomously change the directional position of the nozzle 69 on the stamping part, which can change with the change of the cutting position, realize the multi-angle cooling and flushing function of real-time tracking of the cutting position, and can always keep the cutting part clean, keep the cutting wire clean and tidy and within the appropriate working temperature range, prevent workpiece deformation and improve cutting quality.

[0065] At the same time, the real-time tracking cooling and flushing of the cutting position by the nozzles 69 at the above three azimuth angles can also speed up the water brought into the gap by the cutting wire, increase the water volume, discharge the eroded materials more effectively, increase the water's envelope around the cutting wire outside the gap, and make the coolant start to speed up under the drive of the cutting wire, thereby enhancing the cleaning effect on the gap.

[0066] During the use of the cooling assembly 6, the reflux pump 65 can also be activated in real time to recover the coolant collected in the rectangular groove opened on the top of the working plate 21, filter the coolant through the filter 27, and re-transmit it into the upper wire guide nozzle 84 at the end of the shaft frame 3 through the reflux hose 66, so that the recovered coolant from the upper wire guide nozzle 84 follows the reciprocating motion of the cutting wire and directly acts on the cutting part and the cutting seam in the axial direction, replacing the traditional coolant axial transmission and guiding method, and using the recovered coolant to act on this part, saving coolant while reducing production costs.

[0067] The above are only preferred embodiments of the present invention and are 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 medium-speed wire cutting machine tool for automobile stamping parts, comprising a machine tool (1), a workbench (2) mounted on the top of the machine tool (1), characterized in that: A shaft frame (3) is installed above the workbench (2), a large slide rail (4) is fixedly installed on the top of the machine tool (1) and on the side away from the workbench (2), a wire guide frame (5) is bolted to the top of the machine tool (1), and the wire guide frame (5) is fitted with the large slide rail (4), a cooling component (6) is assembled on the workbench (2), an electric wire drum (7) is installed on the side of the wire guide frame (5) away from the workbench (2), and the electric wire drum (7) is installed on the top of the machine tool (1), and a wire guide flat tube assembly (8) is installed on the side of the wire guide frame (5) facing the workbench (2) and at the bottom; The wire guide flat tube assembly (8) includes a long flat tube (81) installed between the transverse electric screw guide assembly (23) and the working plate (21), an electric slide (83) is installed at one end of the long flat tube (81) away from the working table (2), a guide rail frame (82) is installed at the bottom of the electric slide (83), and the guide rail frame (82) and the wire guide frame (5) are bolted together, the long flat tube (81) is slidably installed with the guide rail frame (82) through the electric slide (83), an upper wire guide nozzle (84) is fixedly installed at one end of the shaft rod frame (3) away from the electric slider (42), a lower wire guide nozzle (85) is bolted to one end of the long flat tube (81) away from the electric slide (83), the lower wire guide nozzle (85) is vertically corresponding to the upper wire guide nozzle (84), and the return hose (66) is connected to the upper wire guide nozzle (84) through the shaft rod frame (3); The middle part of the inner side of the long flat tube (81) is fixedly connected with a fine-pore mesh tube (811) and a coarse-pore mesh tube (812), and the fine-pore mesh tube (811) and the coarse-pore mesh tube (812) together constitute a complete long tube structure, and the coarse-pore mesh tube (812) is installed directly below the fine-pore mesh tube (811) through the long flat tube (81). A fixed guide wheel (813) is rotatably installed on the top of the inner side of the long flat tube (81), and the fixed guide wheel (813) and the fine-pore mesh tube (811) are installed through the long flat tube (81). The middle part of the bottom of the long flat tube (81) is connected with a liquid injection pipe valve (814). The bottom of the inner side of the long flat tube (81) is fixed with a fixed guide wheel (813). A slag collecting bucket (815) is fitted and installed, and oblique openings (816) are provided at equal intervals on a side of the coarse-pore mesh tube (812) facing away from the fine-pore mesh tube (811), and the openings of the oblique openings (816) point toward the slag collecting bucket (815). A baffle (817) is fixedly connected to the inner side of the coarse-pore mesh tube (812) and located at the oblique opening (816), and the free end of the baffle (817) is inclined toward the end away from the guide rail frame (82). A sealing plate (818) is fixedly connected to the end of the slag collecting bucket (815) away from the injection pipe valve (814), and the sealing plate (818) is sealed and installed with the long flat tube (81).

2. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 1, characterized in that: The workbench (2) includes a longitudinal electric linear guide assembly (22) mounted on the top of the machine tool (1), a working plate (21) is mounted on the longitudinal electric linear guide assembly (22), and the working plate (21) is slidably mounted with the machine tool (1) through the longitudinal electric linear guide assembly (22), a transverse electric screw guide assembly (23) is mounted on the top of the working plate (21), and a crossbeam plate (24) is slidably mounted on the transverse electric screw guide assembly (23) in a left-right symmetrical manner, and the crossbeam plate A screw hole is provided through the top of the cross beam plate (24), and a vertical clamp (25) is installed on the top of the cross beam plate (24) through the screw hole. There are two cross beam plates (24), and a horizontal clamp (26) is installed on the middle bolts of the back surfaces of the two cross beam plates (24). The vertical clamp (25) and the horizontal clamp (26) are both used to clamp the stamping parts. A rectangular groove is provided in the middle of the top of the working plate (21), and a filter screen (27) is embedded in the rectangular groove provided on the top of the working plate (21).

3. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 2, characterized in that: A large slide (41) is slidably mounted on the large slide rail (4), an electric slider (42) is slidably mounted on the top of the large slide (41), a right-angle clamping frame (43) is mounted on the top of the electric slider (42), a U-shaped screw frame (44) is mounted on the side of the right-angle clamping frame (43) facing away from the shaft rod frame (3), the shaft rod frame (3) is positioned and mounted with the electric slider (42) through the right-angle clamping frame (43) and the U-shaped screw frame (44), and a servo cylinder (45) is mounted on the side of the large slide (41) facing away from the electric slider (42).

4. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 3, characterized in that: The side of the servo cylinder (45) facing away from the wire guide frame (5) is bolted with a right-angle plate frame (46), the end of the servo cylinder (45) facing away from the shaft rod frame (3) is installed with a folding plate member (47), the folding plate member (47) is bolted to the large slide (41), a piston rod (48) is installed in the middle of the inner side of the servo cylinder (45), the piston rod (48) passes through the folding plate member (47) and is bolted to the right-angle plate frame (46), and the side of the large slide rail (4) facing away from the shaft rod frame (3) is bolted with a U-shaped rail (49).

5. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 4, characterized in that: A tension sensor (51) is installed on the side of the wire guide frame (5) facing away from the workbench (2), and a tensioning member (52) is bolted to the side of the wire guide frame (5) facing the workbench (2). A straight guide wheel (53) is installed below the tension sensor (51), and the number of the straight guide wheels (53) is three, and the straight guide wheels (53) are rotatably installed with the wire guide frame (5). A tensioning guide wheel (54) is installed above the tension sensor (51), and the tensioning guide wheel (54) is rotatably installed with the wire guide frame (5). The tensioning guide wheel (54) is slidably mounted on the wire guide frame (5) through the tensioning member (52), a U-shaped frame (56) is bolted on the shaft rod frame (3), and a lower guide wheel (55) is rotatably mounted inside the U-shaped frame (56). The tensioning guide wheel (54) and the lower guide wheel (55) have the same structure. A torsion rod (57) is threadedly connected to the middle of a side of the tensioning member (52) close to the workbench (2), and a top rod (58) is installed around the torsion rod (57) in a left-right symmetrical shape.

6. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 5, characterized in that: The tensioning guide wheel (54) is rotatably connected to square plates (541) on both sides. There are two square plates (541), and the top rod (58) is rotatably connected to the square plates (541). Short screw rods (542) are threadedly installed at the four corners of the side of the tensioning guide wheel (54) that contacts the wire guide frame (5). A sliding groove is horizontally opened on the surface where the wire guide frame (5) and the square plate (541) are installed. The tensioning guide wheel (54) is slidably installed with the wire guide frame (5) through the cooperation of the short screw rod (542) and the sliding groove on the square plate (541). The tensioning guide wheel (54) is tensioned and installed with the wire guide frame (5) through the cooperation of the torsion rod (57) and the top rod (58) on the tensioning member (52).

7. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 6, characterized in that: A U-shaped plate (543) is installed between the two square plates (541), one end of the U-shaped plate (543) is hinged to one square plate (541), and the other end of the U-shaped plate (543) is meshed with the other square plate (541), and a bevel tooth groove (544) is opened in the middle of the non-hinged end of the U-shaped plate (543), and a bevel gear (545) is installed in the middle of the inner side of the bevel tooth groove (544), and the side of the bevel gear (545) is connected to a soft tooth (546), and the soft tooth (546) is connected to the side of the bevel gear (545). 46) is made of elastic material, the helical gear (545) rotates clockwise and meshes counterclockwise with the U-shaped plate (543) through the soft teeth (546) and the helical gear (545), and a DD motor (547) is fixedly installed on the square plate (541) near the helical gear (545). The output end of the DD motor (547) passes through the square plate (541) and is installed with a pin on the helical gear (545). The helical gear (545) is rotatably installed with the square plate (541) through the DD motor (547).

8. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 7, characterized in that: The cooling assembly (6) includes a coolant tank (61) fixedly mounted on the bottom of the working plate (21), a liquid pump (62) fixedly mounted on the coolant tank (61), an output end of the liquid pump (62) connected to a three-way conduit (63), an end of the three-way conduit (63) away from the liquid pump (62) connected to a straight pipe (64), the straight pipe (64) and the working plate (21) are vertically inserted, a return pump (65) is mounted on the coolant tank (61) and on the same side as the liquid pump (62), an input end of the return pump (65) passes through the working plate (21) and is connected to the rectangular groove, an output end of the return pump (65) is connected to a return hose (66), and an end of the return hose (66) away from the return pump (65) is connected to the shaft rod frame (3).

9. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 8, characterized in that: The surface of the straight tube (64) is provided with a hoop frame (641), and the hoop frame (641) is bolted to the working plate (21), and a first gear motor (642) is installed on the top of the working plate (21), and a tooth cylinder (643) is provided at the plug-in portion between the straight tube (64) and the working plate (21), and the tooth cylinder (643) is rotatably installed with the working plate (21), and the tooth cylinder (643) is meshed with the first gear motor (642), and the straight tube (64) is rotatably installed with the working plate (21) through the tooth cylinder (643) and the first gear motor (642).

10. The medium-speed wire cutting machine tool for automobile stamping parts according to claim 9, characterized in that: The top of the straight tube (64) is connected to a square tube (67), and an angle adjustment component 2 (671) is installed on the square tube (67). The angle adjustment component 2 (671) has the same structure as the first gear motor (642). A toothed cylinder 2 (672) is rotatably connected to a portion of the square tube (67) that is flush with the output end of the angle adjustment component 2 (671). The toothed cylinder 2 (672) is meshed and installed with the angle adjustment component 2 (671). A ball head rotating tube (673) is hinged on the middle part of the inner side of the toothed cylinder 2 (672). The ball head rotating tube (673) is rotatably installed with the square tube (67) through the toothed cylinder 2 (672) and the angle adjustment component 2 (671). The end of the ball head rotating tube (673) away from the toothed cylinder 2 (672) is connected to a nozzle (69), and a position sensor (68) is mounted on the surface of the nozzle (69).

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