A production line with combined machine tools

Abstract

A production line with a modular machine tool includes a sawing machine, a modular machine tool, a chamfering machine and a conveying mechanism. The sawing machine includes a loading rack and a feeding and cutting device. The loading rack includes a loading area and a feeding area. The supporting part of the loading area is tilted downward so that the bar material can automatically roll to the side close to the feeding area. The feeding area is provided with a diagonal support plate to lift the bar material close to the feeding area and roll it to the feeding area. The feeding and cutting device is provided with a clamping feeding structure to move the bar material to the cutting position for cutting. The conveying mechanism includes a first conveyor belt, a second conveyor belt and a stacking mechanical arm. The first conveyor belt is provided with a driving structure to convey the sheet material cut by the sawing machine to the chamfering machine. The chamfering machine chamfers the sheet material and conveys it to the modular machine tool through the second conveyor belt. The stacking mechanical arm removes the workpiece processed by the modular machine tool and clamps the sheet material to the modular machine tool. The production line can realize the automatic processing from the bar material directly into the product through the loading rack and the conveying mechanism, that is, multiple bar materials put on the line at one time can be automatically processed into the required products, which greatly reduces the labor cost. One person can monitor multiple devices for processing at the same time, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of modular machine tools, and in particular relates to a production line with modular machine tools. Background Art

[0002] Existing machine tools have more and more integrated functions, but due to factors such as space, it is difficult to integrate all processing procedures. Therefore, multiple machine tools with different functions are generally used to undertake different processing procedures. The efficiency of different processing procedures is also improved when they are carried out simultaneously, but the workpieces need to be moved between different machine tools manually, which has high labor costs. For example, when processing a structure like a flange, it is necessary to first use a saw to cut it from the bar material, then perform chamfering, and then perform subsequent processing such as drilling. It requires multiple manual transfers of the workpiece. The market still lacks a production line that can directly process raw materials into products using one production line, and how to coordinate the processing connection between various machine tools. Summary of the invention

[0003] In view of the above-mentioned prior art, the object of the present invention is to provide an automated production line with a modular machine tool.

[0004] The technical solution of the present invention is implemented as follows: a production line with a combined machine tool includes a sawing machine, a combined machine tool, a chamfering machine and a conveying mechanism, the sawing machine includes a loading rack and a feeding and cutting device, the loading rack includes a loading area and a feeding area, the support part of the loading area is inclined downward so that the rod material can automatically roll to the side close to the feeding area, the feeding area is provided with a diagonal support plate which can lift up the rod material close to the side of the feeding area and roll it to the feeding area, the feeding and cutting device is provided with a clamping feeding structure which can move the rod material to the cutting position for cutting; the conveying mechanism includes a first conveyor belt, a second conveyor belt and a stacking robot arm, the first conveyor belt is provided with a driving structure which can convey the sheet material cut by the sawing machine to the chamfering machine, the chamfering machine chamfers the sheet material and then conveys it to the combined machine tool through the second conveyor belt, the stacking robot arm removes the workpiece processed by the combined machine tool and clamps the sheet material to the combined machine tool.

[0005] The beneficial effect of this design is that the production line can realize direct automatic processing from bar materials into products through the loading rack and the conveying mechanism, that is, multiple bar materials can be automatically processed into the required products at one time, which greatly reduces labor costs. One person can monitor multiple devices for simultaneous processing, greatly improving production efficiency.

[0006] Furthermore, the feeding area is provided with a plurality of limit frames, and the plurality of limit frames are arranged in a row in parallel with each other, and the limit frames include a positioning substrate, a first baffle and a second baffle, the first baffle and the second baffle are located on the positioning substrate, and there is a certain space between the first baffle and the second baffle to place the rod material and limit the rod material to a certain position, the first baffle is close to one side of the feeding area and protrudes a certain height relative to the support part of the loading area to ensure that the first baffle can block the rod material of the support part, so that the first baffle can block excess rod material and prevent multiple rod materials from entering the feeding area, and the second baffle can limit the position of the rod material in the feeding area, and the feeding and cutting device can feed and cut the rod material in the feeding area step by step as required, and move the rod material from the loading area to the feeding area after cutting is completed, and the rod material in the loading area can be gradually cut by repeating this process.

[0007] Furthermore, a strip hole is provided on the positioning substrate and can be fixed to the frame by screws. A threaded hole extending in the horizontal direction is provided on the positioning substrate. A screw is provided in the threaded hole. A bevel gear is provided at one end of the screw. The screw is fixed to the frame through a bearing. The bevel gear matches the driving bevel gear so that the driving bevel gear can rotate to drive the bevel gear to rotate and further rotate the screw to adjust the position of the positioning substrate. This design can control the positions of multiple limit frames by a handle wheel, which is not only convenient for adjustment but also ensures that the positioning frame is always in a straight line.

[0008] Furthermore, the loading area and the feeding area adopt an integrated frame structure. The support part of the loading area includes an inclined support part and a horizontal support part. The feeding area is provided with a flexible foot pad so that the feeding area can be lowered to a certain height under the action of external force so that the horizontal support part tilts downward at a certain angle. This can not only achieve the purpose of buffering, but also allow the rod material to roll to one side of the feeding area, facilitating continuous feeding.

[0009] Furthermore, two groups of production lines are arranged symmetrically on both sides of the stacking robot arm. The processing times of the two groups of production lines are staggered so that the two combined machine tools clamp the workpieces at different times. This design layout is more compact and the production line cost is lower under the premise of the same production efficiency.

[0010] Furthermore, a production line is equipped with multiple combined machine tools, multiple sawing machines, a chamfering machine and a stacking robot arm. The multiple sawing machines use a first conveyor belt to transport the sheets cut by the sawing machines to the chamfering machine. After the chamfering machine completes chamfering, the sheet is transported to the stacking robot arm through a second conveyor belt. The stacking robot arm loads and unloads materials according to the processing status of the combined machine tools. The chamfering and loading and unloading time is relatively fast. One machine can be used for multiple purposes, which can comprehensively utilize resources to reduce costs. Reducing the number of stacking robots and chamfering machines can also further reduce the space occupied by the production line, and it is also more economical in terms of energy and maintenance.

[0011] Furthermore, the stacking robot arm is equipped with a visual system which can locate the position of the workpiece based on image recognition and clamp the workpiece. This not only ensures accurate clamping and positioning, but also can identify whether there is a shortage of material. The modular machine tool can selectively process according to the incoming material conditions.

[0012] Furthermore, the combined machine tool includes a magnetic suction type rotary table, which includes a magnetic suction component, a control component, a workbench and a slide seat. The workbench and the slide seat are made of ferromagnetic materials. The workbench is directly or indirectly mounted on the slide seat in a manner that it can rotate relative to the slide seat. The workbench or the slide seat is provided with a magnetic suction component installation position. The control component controls the magnetic suction force of the magnetic suction component on the workbench or the slide seat by changing the position or magnetism of the magnetic suction component. The workbench or the slide seat can generate magnetic suction force on ferromagnetic parts within a certain range under the action of the magnetic suction component. In the processing state, the magnetic suction component is adsorbed to the workbench or the slide seat under the action of the control component. The magnetism generated by the workbench or the slide seat can adsorb other ferromagnetic parts, at least allowing the workbench and the slide seat to attract each other, so that the gap between the workbench and the slide seat is smaller, and the workbench and the slide seat fit more closely, so that the relative position between the workpiece and the tool is more stable, and the processing accuracy is also improved.

[0013] Furthermore, the combined machine tool includes a lockable rotary table, which includes a locking member, a worktable and a slide. The worktable is directly or indirectly mounted on the slide in a manner that it can rotate relative to the slide around a vertical axis. The locking member includes at least one movable member that can generate displacement or force in the vertical direction. The locking member includes at least one mating member that abuts against the movable member after movement, or a mating position that abuts against the movable member is set on the worktable or the slide. When the movable member moves to abut against the mating member or the mating position, a vertical force and a horizontal locking force can be generated. The positioning accuracy of the rotary table is greatly improved by utilizing the locking function of the locking piece. The processing accuracy of the locking piece on the rotary table can be controlled within the range of 0.005mm using existing equipment. Therefore, the positioning accuracy of the rotary table locked by the locking piece can be easily controlled within the range of 0.01mm-0.02mm. If a tight locking sleeve matching structure is utilized, the positioning accuracy can be controlled within 0.01mm. Moreover, the locking piece can generate a force in the vertical direction, which can reduce the vertical gap between the worktable and the slide, or reduce the shaking between the worktable and the slide when processing the workpiece, thereby increasing the processing stability and further improving the processing accuracy.

[0014] Furthermore, the combined machine tool includes an alarm device, which includes a detection device, an alarm device, a control circuit and a control device. The control device can urgently shut down some processing units or delay shutting down some processing units according to the control circuit instruction. The alarm device can emit sound, light or digital signal according to the control circuit instruction to remind the staff of the failure. The detection device can detect one or more detection data and feed it back to the control circuit. The detection data includes one or more of processing power, processing time, processing position, tool position or workpiece position. The control circuit can comprehensively analyze and judge whether the combined machine tool is working normally according to the detection data obtained from the detection device and issue corresponding instructions. Since the production line has a high degree of automation, one person monitors multiple production lines, and manual supervision and monitoring of whether the machine tool is normal is prone to errors. If an alarm device is set, an alarm can be quickly issued in the event of an abnormality in the machine tool, and the staff can detect the machine tool problem in time to avoid batch scrapping of parts due to processing problems. In some special cases, the machine can be shut down directly to avoid damage to the machine tool and economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a production line with a modular machine tool according to the present invention;

[0016] Figure 2 It is a three-dimensional schematic diagram of a production line with a modular machine tool according to the present invention;

[0017] Figure 3 This is a schematic diagram of the central symmetrical layout of a production line with a modular machine tool according to the present invention;

[0018] Figure 4 It is a schematic diagram of the layout of a single stacking robot arm of a production line with a modular machine tool according to the present invention;

[0019] Figure 5 It is a schematic diagram of the vertical state of the inclined support plate of the material rack on the production line with the modular machine tool of the present invention;

[0020] Figure 6 It is a schematic diagram of the inclined state of the inclined support plate of the material rack on the production line with the modular machine tool of the present invention;

[0021] Figure 7 It is a side view schematic diagram of a vertical state of a material rack diagonal support plate on a production line with a modular machine tool of the present invention;

[0022] Figure 8 It is a side view schematic diagram of the inclined state of the inclined support plate of the material rack on the production line with the modular machine tool of the present invention;

[0023] Fig. 9 It is a schematic diagram of the vertical state of the inclined support plate of the material rack on the production line with the modular machine tool of the present invention;

[0024] Fig.10 It is a front schematic diagram of a vertical state of a material rack diagonal support plate on a production line with a modular machine tool of the present invention;

[0025] Fig.11 It is a front view schematic diagram of the inclined state of the inclined support plate of the material rack on the production line with the modular machine tool of the present invention;

[0026] Fig.12 It is a schematic diagram of the internal structure of the modular machine tool of the present invention;

[0027] Fig.13 This is a schematic diagram of the installation of a magnetic attraction assembly of a magnetic attraction type rotary table for a modular machine tool of the present invention;

[0028] Fig.14 This is a schematic diagram of an explosion of the magnetic suction component of the present invention;

[0029] Fig.15 It is a schematic diagram of the central cross-section of the magnetic attraction component of the present invention;

[0030] Fig.16 This is a bottom view schematic diagram of the lockable rotating platform of the present invention;

[0031] Fig.17 It is a three-dimensional schematic diagram of the slide seat of the lockable rotating table of the present invention;

[0032] Fig.18 It is a front schematic diagram of the locking structure of the lockable rotating table of the present invention in an unlocked state;

[0033] Fig.19 It is a front schematic diagram of the locking state of the locking structure of the lockable rotating table of the present invention;

[0034] Fig. 20 It is a three-dimensional schematic diagram of the locking structure of the lockable rotating table of the present invention;

[0035] Fig.21 It is a three-dimensional schematic diagram of a partial locking structure of a lockable rotating table of the present invention;

[0036] Fig. 22 It is a half-section and partial enlarged schematic diagram of the lockable rotating table of the present invention;

[0037] Fig.23 This is a three-dimensional schematic diagram of an alarm device installed in a modular machine tool of the present invention;

[0038] Fig.24 for Fig.23 A partial enlarged schematic diagram in the middle;

[0039] Fig.25 This is a schematic diagram of the laser route of the laser emitting device of the present invention;

[0040] Fig.26This is a three-dimensional schematic diagram of the dust cover of the present invention in an open state;

[0041] Fig. 27 It is a three-dimensional schematic diagram of the state of the dust cover of the present invention before it is opened;

[0042] Fig.28 This is a three-dimensional schematic diagram of the dust cover of the present invention being opened by the blocking frame;

[0043] Fig.29 This is a schematic diagram of the laser emitting device of the present invention being fixed with a ball hinge. DETAILED DESCRIPTION

[0044] As required, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are merely exemplary of the present invention, and the present invention may be implemented in different and alternative forms. The accompanying drawings may not be drawn to scale, and certain features may be exaggerated or reduced to show the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be understood as having a limiting meaning, but only as a representative basis to teach those skilled in the art to adopt the present invention differently. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a production line with a modular machine tool includes a modular machine tool 1, a sawing machine 3, a chamfering machine 2 and a conveying mechanism 4. The sawing machine 3 includes a loading rack 301 and a feeding and cutting device 302. The loading rack 301 includes a loading area 310 and a feeding area 311. The support portion 312 of the loading area 310 is tilted downward so that the bar material can automatically roll to the side close to the feeding area 311. The feeding area 311 is provided with a diagonal support plate 313 which can lift the bar material close to the feeding area 311 and roll it to the feeding area 311. The feeding and cutting device 302 includes a loading area 310 and a feeding area 311. 02 is provided with a clamping feeding structure to move the bar material 303 to the cutting position for cutting; the conveying mechanism 4 includes a first conveyor belt 401, a second conveyor belt 402 and a stacking robot arm 403. The first conveyor belt 401 is provided with a driving structure to convey the sheet material 304 cut by the sawing machine 3 to the chamfering machine 2. The chamfering machine 2 chamfers the sheet material 304 and then conveys it to the modular machine tool 1 through the second conveyor belt 402. The stacking robot arm 403 removes the workpiece 305 processed by the modular machine tool 1 and clamps the sheet material 304 to the modular machine tool 1. The processed workpieces 305 can be stacked in a nearby position, and can be transported away by a forklift when a certain number is reached.

[0046] like Figure 5-11As shown, the feeding area 311 is provided with a plurality of limit frames 314, and the plurality of limit frames 314 are arranged in a row in parallel with each other. The limit frames 314 include a positioning substrate 315, a first baffle 316 and a second baffle 317. The first baffle 316 and the second baffle 317 are located on the positioning substrate 315. There is a certain space between the first baffle 316 and the second baffle 317 to place the rod 303 and limit the rod 303 to a certain position. The first baffle 316 is close to one side of the feeding area 311 and protrudes a certain height relative to the support portion 312 of the loading area 310 to ensure that the first baffle 316 can block the rod 303 of the support portion 312.

[0047] like Figure 5-11 As shown, the positioning substrate 315 is provided with a strip hole 318 which can be fixed to the frame 325 by screws, the positioning substrate 315 is provided with a threaded hole extending in the horizontal direction, a screw 319 is provided in the threaded hole, a bevel gear 320 is provided at one end of the screw 319, the screw 319 is fixed to the frame 325 through a bearing, the bevel gear 320 matches the driving bevel gear 321 so that the driving bevel gear 321 rotates to drive the bevel gear 320 to rotate and further rotate the screw 319 to adjust the position of the positioning substrate 315. The frame 325 is provided with a hand wheel 326, which is linked to the driving bevel gear 321 through a gear. Multiple diagonal brace plates 313 are hinged to the same push rod 327, and the push rod 327 is driven by a hydraulic device 328 to generate displacement, thereby pushing the diagonal brace plates 313 to change between the vertical direction and the inclined direction.

[0048] like Figure 5-11 As shown, the loading area 310 and the feeding area 311 adopt an integrated frame structure. The support part 312 of the loading area 310 includes an inclined support part 322 and a horizontal support part 323. The feeding area 311 is provided with a flexible foot pad 324 so that the feeding area 311 can be lowered to a certain height under the action of external force so that the horizontal support part 323 can be tilted downward at a certain angle.

[0049] like Figure 3 As shown, two groups of production lines are arranged symmetrically on both sides of the stacking robot arm 403, and the processing times of the two groups of production lines are staggered so that the two modular machine tools 1 clamp the workpieces 305 at different times.

[0050] like Figure 4As shown, a production line is provided with multiple modular machine tools 1, multiple sawing machines 3, a chamfering machine 2 and a stacking robot arm 403. The multiple sawing machines 3 use a first conveyor belt 401 to convey the sheet material 304 cut by the sawing machines 3 to the chamfering machine 2. After the chamfering is completed, the chamfering machine 2 conveys the sheet material 304 to the stacking robot arm 403 through a second conveyor belt 402. The stacking robot arm 403 loads and unloads materials according to the processing state of the modular machine tool 1. The first conveyor belt 401 can combine the workpieces 305 together by multiple conveyor belts. The stacking robot arm 403 is provided with a visual system that can locate the position of the workpiece 305 according to image recognition and clamp the workpiece 305.

[0051] like Figure 12-14 As shown, a combined machine tool 1 includes a rotating table 101 with a rotating shaft in the vertical direction, a dividing plate 102 with a rotating shaft in the horizontal direction, and a processing tool holder 103 corresponding to the dividing plate 102. The dividing plate 102 can be installed on the rotating table 101, and the workpiece can be installed on the dividing plate 102. The rotating table 101 can rotate the workpiece to the corresponding different processing tool holders 103 in different processing steps of the workpiece to process the workpiece. The processing tool holder 103 is provided with a horizontal cross slide 104 to change the horizontal relative position of the processing tool holder 103 relative to the workpiece. The rotation of the dividing plate 102 can change the vertical relative position of the workpiece relative to the processing tool holder 103. The magnetic attraction structure is arranged on the rotating table 101 to make the rotating table 101 more stable during processing, with less vibration or shaking during processing and higher processing accuracy. When the rotating table 101 needs to rotate, the suction force of the magnetic attraction structure can be changed to reduce the resistance to rotation. If it is an electromagnet, there is basically no magnetic force after the power is turned off, and the resistance will not increase, so it has good practicality.

[0052] like Figure 12-14 As shown, a magnetic rotary table for a combined machine tool includes a magnetic component 11, a control component 5, a workbench 6 and a slide 7. The workbench 6 and the slide 7 are made of ferromagnetic materials. The workbench 6 is directly or indirectly mounted on the slide 7 in a rotatable manner relative to the slide 7. The workbench 6 or the slide 7 is provided with an installation position of the magnetic component 11, and the position is as close as possible to the area where the workbench 6 and the slide 7 are facing a large area and a short distance, so that the magnetic attraction force provided by the magnetic component has the greatest impact on the workbench 6 and the slide 7. The ultimate goal is to allow the workbench 6 and the slide 7 to be attracted together and reduce the gap or shaking between the workbench 6 and the slide 7. The control component 5 controls the magnetic attraction force of the magnetic component 11 on the workbench 6 or the slide 7 by changing the position of the magnetic component 11 or the magnetism. The workbench 6 or the slide 7 can generate magnetic attraction to ferromagnetic parts within a certain range under the action of the magnetic component 11, that is, the workbench 6 and the slide 7 are attracted together.

[0053] The magnetic attraction component 11 can be an electromagnet and / or a permanent magnet 10 and other auxiliary components, and other auxiliary components mainly have the function of limiting installation, that is, installing or limiting the permanent magnet 10, or installing or limiting the electromagnet and some buffering parts. The control component 5 can be a switch and circuit controlled by the electromagnet power supply, or a mechanical structure, hydraulic structure, etc. for the position control of the permanent magnet 10, that is, the permanent magnet 10 is moved by a mechanical structure or a hydraulic structure. The permanent magnet 10 is magnetic but can also be moved by the control of the electromagnet, and the electromagnet replaces the mechanical structure or the hydraulic structure.

[0054] like Fig.13 As shown, the installation position can be set to a concave structure, that is, a mounting hole 8 is set on the workbench 6 or the slide 7, and the magnetic suction component 11 is installed in the mounting hole 8. If there is enough space outside, it can also be set to a local protruding structure. Of course, the concave structure has a greater magnetic suction force and a better effect.

[0055] The permanent magnet 10 can be a neodymium iron boron magnet. There are four workstations, and two permanent magnets 10 can be set in each workstation. The mass of one permanent magnet 10 is about 1 kg, and it can provide a magnetic attraction force of about 6000N. A total of 48000N of magnetic attraction can be provided, which can stabilize the workbench 6 well. 100 samples were randomly selected for testing, and compared with the samples without the magnetic attraction structure, it was found that among the 100 samples without the magnetic attraction structure, the position deviation of the openings of 3 samples exceeded 0.04mm, but after the magnetic attraction structure was set, only one sample among the 100 samples had a position deviation of more than 0.04mm, so it has a certain effect on improving the accuracy.

[0056] like Fig.14 and Fig.15 As shown, the magnetic attraction component 11 is an electromagnet component, and the electromagnet component includes a coil 12 and an iron core 13. The control component 5 is an electromagnet control circuit, and the control circuit can turn on and off the power of the electromagnet coil 12 as needed. The modular machine tool generally uses PLC for power control, and the control component 5 can directly use the PLC of the machine tool for unified control, that is, provide power or disconnect power according to the needs of the machine tool.

[0057] like Fig.14 and Fig.15 As shown, the electromagnet assembly includes a coil 12, a permanent magnet 10 and an iron core 13. The iron core 13 is arranged between the permanent magnet 10 and the workbench 6 or between the permanent magnet 10 and the slide 7 so that the permanent magnet 10 can be driven away from or close to the iron core 13 by changing the circuit of the coil 12. When the permanent magnet 10 is close to the iron core 13, the magnetic attraction force can be transmitted to the workbench 6 or the slide 7.

[0058] like Fig.13As shown, a mounting hole 8 is provided at the upper end of the workbench 6, and the electromagnet assembly is arranged in the mounting hole 8. A buffer structure is provided between the iron core 13 and the permanent magnet 10 so that the permanent magnet 10 can be slowly attracted to the iron core 13.

[0059] like Fig.14 and Fig.15 As shown, the permanent magnet 10 and the iron core 13 are both arranged in a cylindrical shape and a spring 14 is arranged between the permanent magnet 10 and the iron core 13, an annular protective shell 15 is arranged on the side of the permanent magnet 10, and the minimum radius of the inner side of the spiral of the spring 14 is greater than the radius of the iron core 13 and the permanent magnet 10, so that when the permanent magnet 10 attracts the iron core 13, the spring 14 surrounds the iron core 13 and / or the periphery of the permanent magnet 10, a through hole 17 is arranged in the center of the permanent magnet 10 to match the core shaft 18 of the protective shell 15, a sheath 19 can be integrally arranged on the periphery of the permanent magnet 10 to abut against the spring 14, and the iron core 13 can be provided with an external thread to match the protective shell 15.

[0060] like Fig.12 and Fig.16 As shown, a combined machine tool includes a lockable rotating table, the rotating axis 100 of the rotating table 101 is in the vertical direction, and also includes a plurality of indexing plates 102 with rotating axes in the horizontal direction, and a processing tool seat 103 arranged corresponding to the indexing plate 102. The indexing plate 102 can be installed on the rotating table 101, and the workpiece can be installed on the indexing plate 102. The rotating table 101 can rotate the workpiece to the corresponding different processing tool seats 103 in different processing steps of the workpiece to process the workpiece. The processing tool seat 103 is provided with a horizontal cross slide 104 to change the horizontal relative position of the processing tool seat 103 relative to the workpiece. The rotation of the indexing plate 102 can change the vertical relative position of the workpiece relative to the processing tool seat 103. The rotating table 101 of the machine tool can be locked in two dimensions, and the processing accuracy is improved.

[0061] like Fig.12 As shown, the combined machine tool is provided with four workstations, namely, a clamping station 201: the machined workpiece can be removed from the dividing plate 102, and the workpiece to be machined can be mounted on the dividing plate 102; a drilling station 202: through holes and blind holes can be machined on the workpiece; an reaming station 203: a straight hole can be machined into a tapered hole using a forming tool; and a finishing station 204: a boring tool can be used to finish the hole to obtain higher dimensional accuracy.

[0062] like Fig.12As shown, a lockable rotary table for a combined machine tool includes a locking structure, a worktable 6 and a slide 7. The worktable 6 is directly or indirectly mounted on the slide 7 in a manner that it can rotate relative to the slide 7 around a rotating axis in a vertical direction. The locking structure includes at least one moving part 61 that can generate displacement or force in the vertical direction. The locking structure includes at least one matching part 71 that abuts against the moving part 61 after movement, or a matching position 72 that abuts against the moving part 61 is set on the worktable 6 or the slide 7. When the moving part 61 moves to abut against the matching part 71 or the matching position 72, a vertical force and a horizontal locking force can be generated. In the ordinary hydraulic state, friction force is generally used to achieve the locking function. Although the service life is long, the locking stability is poor. The traditional mechanical locking method can only generate locking force in the horizontal direction and has no force in the vertical direction. Although the positioning accuracy can be improved, the machine tool will shake during processing and the processing accuracy will also be affected. The use of the movable part 61 in the present application to generate a locking force in the vertical direction can reduce the shaking, further improve the processing accuracy on the basis of ordinary mechanical locking, and can perform batch automatic processing on more parts. The movable part 61 can be designed as a pin-like structure to lock the workbench 6 and the slide 7 together, or it can be designed as a cylindrical structure of a lock sleeve that is sleeved outside the pin structure. Directly using a hydraulic cylinder to press the movable part 61 on the workbench 6 to apply a force in the direction of the slide 7 also has a certain effect, but the design of a complex structure has a better effect.

[0063] like Figure 16-22 As shown, the rotating table 101 is a hydraulic rotating table, a locking pin 69 is provided at the lower end of the workbench 6, a moving part 61 is provided outside the locking pin 69, and the moving part 61 can move along the locking pin 69, a matching part 71 is provided at the upper end of the slide 7, the moving part 61 is cylindrical and can be moved downward by the drive of the mechanical parts, when the locking pin 69 and the matching part 71 are in the matching position, the moving part 61 moves downward and can surround the locking pin 69 and the matching part 71 and fix the locking pin 69 and the matching part 71 together, after the moving part 61 moves upward for a distance, the locking pin 69 follows the workbench 6 to rotate and can rotate or move relative to the matching part 71.

[0064] like Figure 16-22As shown, the tapered outer surface of the lock pin 69 and the matching piece 71 can be matched with the tapered inner surface of the moving member 61 in the matching position. It can be a pyramid or a cone. The conical moving member 61 is easier to process, but the tapered outer surface formed by the lock pin 69 and the matching piece 71 combination is more difficult to process. Because the precision of the size directly affects the positioning accuracy, and multiple lock pins 69 and matching pieces 71 are required to be matched and used, the moving member 61 is generally designed to be a square structure in actual use, and a certain slope is processed on the action surface. The larger moving member 61 also needs to be provided with a corresponding track to ensure that the moving member 61 moves smoothly. The track accuracy of the moving member 61 is not high, and the actual positioning relies on the interaction between the inner surface of the moving member 61 and the lock pin 69 and the matching piece 71. The first inclined surface 75 is processed on the matching piece 71, and the second inclined surface 76 is processed on the lock pin 69, so that the moving member 61 generates a downward force when it moves downward. Of course, the third inclined surface can also be processed symmetrically on both sides of the lock pin 69, so that the force is more balanced.

[0065] like Figure 16-22 As shown, the slide 7 is in a cubic shape, and a chamfered surface 70 is provided on the corner of the slide 7. A dovetail groove 78 or a trapezoidal groove is provided on the chamfered surface 70. The matching pieces 71 are arranged in the dovetail grooves 78 or the trapezoidal grooves on the four corners of the upper end of the slide 7. The interval angle between adjacent matching pieces 71 is 90 degrees, so it can be locked by rotating to any matching position.

[0066] like Figure 16-22 As shown, the matching surface 79 between the locking pin 69 and the matching piece 71 is an arc surface, so that the rotating table 101 can rotate freely without being affected by the matching between the locking pin 69 and the matching piece 71. If it is set to a plane, the workbench 6 will not be able to rotate relative to the slide seat 7 after the locking pin 69 and the matching piece 71 abut. The locking pin 69 can be fixed to the workbench 6 by screws, and the matching piece 71 is fixed to the slide seat 7 by screws. The matching surface 79 is provided with a plurality of grooves 80, and the grooves 80 are extended in the vertical direction. The matching surface 79 needs to be finely processed to ensure the matching accuracy. Reducing the area of ​​the matching surface 79 can reduce the time for fine processing of the matching surface 79, and can reduce the cost while meeting the strength requirements.

[0067] like Figure 16-22 As shown, the mechanical parts include a support block 81 and a hydraulic drive structure 82. The slide 7 is provided with a hydraulic drive structure 82 to drive the support block 81 to move. The lower side of the support block 81 is provided with a slope 83 which can abut against the upper end surface of the moving part 61 to drive the moving part 61 to move downward and abut against the slide 7. The upper end of the support block 81 abuts against the lower end surface of the workbench 6, and the moving part 61 can also abut against the matching part 71. The matching part 71 is fixed to the slide 7. In this way, there is basically no gap between the workbench 6 and the slide 7. Using four support blocks 81 is equivalent to adding four legs to the workbench 6, which has a very obvious effect on improving the processing accuracy.

[0068] like Figure 16-22 As shown, a spring 84 is provided between the moving part 61 and the workbench 6 so that the moving part 61 can be reset by the spring 84. The moving part 61 is provided with two guide shafts 85. The guide shafts 85 are installed in the guide holes at the lower end of the workbench 6 to ensure that the moving part 61 moves in a straight line. The spring 84 is installed on the outer periphery of the guide shaft 85, with one end fixed on the moving part 61 and the other end fixed on the workbench 6.

[0069] like Figure 23-24 As shown, a combined machine tool 1 includes a rotating table 101 and an alarm device. The rotating axis of the rotating table 101 is in the vertical direction, and it also includes multiple dividing plates 102 with rotating axes in the horizontal direction, and a processing tool seat 103 arranged corresponding to the dividing plate 102. The dividing plate 102 can be installed on the rotating table 101, and the workpiece can be installed on the dividing plate 102. The rotating table 101 can rotate the workpiece to the corresponding different processing tool seats 103 in different processing steps of the workpiece to process the workpiece. The processing tool seat 103 is provided with a horizontal cross slide 104 to change the horizontal relative position of the processing tool seat 103 relative to the workpiece. The rotation of the dividing plate 102 can change the vertical relative position of the workpiece relative to the processing tool seat 103.

[0070] The above-mentioned alarm device for combined machine tools includes a detection device, an alarm device, a control circuit and a control device. The control device can urgently shut down some processing units or delay shutting down some processing units according to the instructions of the control circuit. The alarm device can emit sound, light or digital signal according to the instructions of the control circuit to remind the staff of the failure. The detection device can detect one or more detection data and feed them back to the control circuit. The detection data includes one or more of the processing power, processing time, processing position, tool position or workpiece position. The control circuit can comprehensively analyze and judge whether the combined machine tool is working normally according to the detection data obtained from the detection device and issue corresponding instructions. The control circuit can be a PLC control circuit or other control circuit with intelligent chip. The control device is a relay switch device that can open or close the circuit as needed. The alarm device is a signal device that can remind the staff of the abnormality or attract the attention of the staff when an abnormal situation occurs. The detection device is a device set according to the detection needs. It can be a device for detecting current and voltage, or a simple travel switch, a timer, a position detection structure, or a combination of the above tools.

[0071] Long-term research has found that there are many manifestations of abnormal machine tool operation. It is difficult to determine whether a machine tool is working normally with a single data of some faults, but there are some indicators that are certain. For example, if the processing position is not reached, there may be a problem with the detection mechanism or the machine tool. There are also some data that need to be analyzed comprehensively. For example, changes in processing power may be caused by line voltage, or it may be affected by the hardness of the material, or it may be affected by the tool. The processing time will also change when the power changes. It is also normal for the voltage to extend the processing time within a certain range; the increase in processing power and the increase in processing time may be due to tool wear, or it may be due to the high hardness of the workpiece. If the processing time continues to increase, it is basically a tool problem and the tool needs to be stopped and replaced. If the processing time increases and decreases, the tool may be basically normal; the tool position and workpiece position detection accuracy requirements are high, and if abnormalities are found, they must be adjusted in time.

[0072] like Fig.23 As shown, the combined machine tool is provided with a cross slide 104 , on which a processing tool holder 103 is provided, on which a tool is mounted, and a travel switch 30 is provided on the side or bottom of the processing tool holder 103 to detect the position of the processing tool holder 103 .

[0073] like Fig.23 As shown, the control circuit determines the processing time according to the time from when the tool starts working to when the travel switch 30 is triggered, and compares the processing time with the normal working time. If the time exceeds a certain range, an alarm is issued.

[0074] like Fig.23 , Fig.24 , Fig.25 , Fig.26 and Fig. 27 As shown, the processing tool holder 103 is provided with a position detection device which can detect the height of the processing tool holder 103 and the degree of horizontal repeated positioning. Preferably, a laser emitting device 32 can be provided above or obliquely above the processing tool holder 103, and other positions are regarded as equivalent designs. The laser emitting device 32 is fixed on the frame 34 in a manner that it can rotate relative to the frame 34. The laser emitting device 32 is provided with a reference support portion 33, and the processing tool holder 103 is provided with a reference portion 44. The reference portion 44 abuts against the reference support portion 33 so that the laser emitting device 32 emits a light beam at a certain angle. At least one reflector 35 is provided in the direction of the light beam irradiation, and a laser receiving device 45 is provided on the processing tool holder 103.

[0075] like Fig.26 , Fig. 27 and Fig.28As shown, the reference support part 33 of the laser emitting device 32 is in contact with the reference part 44 through a support point, the reference part 44 is a plane, the reference support part 33 is spherical, and the plane of the reference part 44 is not parallel to the two sliding directions of the cross slide 104. The frame 34 is provided with a mounting hole and can be mounted on the support column 36 of the machine tool. To ensure the position accuracy, the frame 34 is provided with a pin hole 37, which can be positioned using a positioning pin. The frame 34 can extend a certain distance in the direction of the cross slide 104. The frame 34 is provided with a hinge hole and is hinged to the laser emitting device 32. An elastic reset structure such as a spring can be provided between the frame 34 and the laser emitting device 32, so that the stability of the position of the laser emitting device 32 can be ensured.

[0076] like Fig.26 , Fig. 27 and Fig.28 As shown, in order to ensure the accuracy of detection, a dust cover 43 is provided on the reference part 44, and the dust cover 43 can be provided with an elastic reset structure 42, which can be opened by moving the cross slide 104. For example, it is set to a flip-up dust cover 43, and a push rod 41 is provided on the dust cover 43. The push rod 41 abuts against the blocking frame 38 provided on the frame 34 to push the dust cover 43 to rotate and open. When there is no external force, it relies on spring reset. When detection is required, the reference support part 33 is moved toward the reference part 44 by relying on the cross slide 104. As the blocking frame 38 moves, it abuts against the push rod 41 to push the dust cover 43 to rotate. Finally, the reference support part 33 abuts against the reference part 44. This method is to determine whether the position degree is accurate by detecting the deviation of the repeated position degree. If the position degree changes, the angle of the laser will change, and whether the repeated position degree is offset can be determined based on the final position of the laser.

[0077] As a preferred solution, at least two sets of laser emitting devices 32 are provided, and at least one laser receiving device 45 is provided at a certain angle to the plane of the reference part 44 on which the reference supporting parts 33 of the two sets of laser emitting devices 32 act.

[0078] like Fig.25 and Fig.29As shown, the laser emitting device 32 is hinged to the frame 34 through a ball hinge, the reference support part 33 is spherical, the reference part 44 is spherically concave and matches the reference support part 33, and the laser receiving device 45 is provided with a plurality of independent light sensing structures 46 arranged in a ring. The modular machine tool is provided with a rotating table 101, and the rotating table 101 is provided with a turntable reflector 39. The turntable reflector 39 is arranged in a vertical direction, and can detect whether the turntable is tilted. The turntable reflector 39 is tilted, and can detect whether the turntable changes in height and angle. If the turntable moves along the plane of the turntable reflector 39 or rotates in the plane of the turntable reflector 39, the detection will fail. Therefore, in theory, at least two turntable reflectors 39 at a certain angle should be set to detect various offsets. In actual use, the key detection direction can be determined according to the use of the machine tool. Only one turntable reflector 39 can be used for detection. The turntable reflector 39 can increase the offset by increasing the path to detect the angle change, so it is more sensitive to the angle change and insensitive to the parallel displacement.

[0079] like Fig.23 , Fig.28 and Fig.29 As shown, the frame 34 is provided with a mounting hole which can be mounted on the support column 36 of the machine tool. To ensure the position, the frame 34 is provided with a pin hole 37 which can be positioned using a positioning pin. The frame 34 can extend a certain distance toward the cross slide 104. The frame 34 is provided with a hinge hole which is hinged to the laser emitting device 32. An elastic reset structure such as a spring can be provided between the frame 34 and the laser emitting device 32 to ensure the stability of the position of the laser emitting device 32.

[0080] like Fig.26 , Fig.28 and Fig.29 As shown, in order to ensure the accuracy of detection, a dust cover 43 is provided on the reference part 44, and the dust cover 43 can be provided with an elastic reset structure, which can be opened by moving the cross slide 104. For example, it is set to a flip-up dust cover 43, and a push rod 41 is provided on the dust cover 43. The push rod 41 abuts against the blocking frame 38 provided on the frame 34 to push the dust cover 43 to rotate and open. When there is no external force, it relies on spring reset. When detection is required, the reference support part 33 is moved toward the reference part 44 by relying on the cross slide 104. As the blocking frame 38 moves, it abuts against the push rod 41 to push the dust cover 43 to rotate. Finally, the spherical surface of the reference support part 33 and the reference part 44 are matched together. This method is to determine whether the position degree is accurate by detecting the deviation of the repeated position degree. If the position degree changes, the angle of the laser will change, and whether the repeated position degree is offset can be determined based on the final position of the laser.

[0081] like Fig.23 , Fig.25 and Fig.29As shown, the number of turntable reflectors 39 on the turntable 101 is the same as the number of workstations of the turntable 101, and they should be evenly distributed on the circumference, that is, when any turntable reflector 39 rotates to the detection position, the angle and distance are the same, ensuring that the laser path is exactly the same without external changes. The machine tool is provided with four support columns 36, and reflectors 35 are arranged on the support columns 36. The laser can be reflected multiple times between the four reflectors 35, so that the position offset can be amplified, the path is increased tenfold, and the offset can also be amplified tenfold. In the embodiment, the distance from the reference support part 33 to the hinge center is 0.02m, and the laser path distance exceeds 40m, so the position offset can be amplified by about 2000 times. Therefore, it is easy to amplify the microscopic size change to the macroscopic visible range, and there is no need to use particularly precise laser equipment, which is low in cost but high in reliability.

[0082] like Fig.25 As shown, a polarization beam splitter prism or polarizer is arranged on the laser irradiation path to realize splitting a laser beam into two laser beams. The polarization beam splitter prism or polarizer can be arranged on the frame 34, or can be arranged at other positions according to the detection needs. As shown in the schematic diagram, after the laser emitting device 32 emits the laser, it can be divided into two groups of light beams through the first polarizer 40. One group of light beams can irradiate the side wall reflector 35 on the rotating table, can be reflected multiple times between the side wall reflector 35 and the reflector 35 on the support column 36, or can be directly reflected between the reflectors 35 on the support column 36. When the reflection distance is long enough, it can irradiate the laser receiving device 45. According to the specific situation, the laser receiving device 45 with an independent light sensing structure 46 arranged in a ring can be selected. The other light beam is reflected multiple times between the reflectors 35 on the support column 36 and finally directly reaches the laser receiving device 45. The receiving device 45 can also be used to divide the laser into two beams of light through an ordinary prism, but if one beam of light is offset, it is unclear which position is offset or deflected. For example, a polarization beam splitter prism or a polarizer is used to separate the light beams, and finally the polarizer can be used to confirm which beam has changed, that is, the same direction can pass through, and different directions will be reflected, and then confirm which position has an abnormality. Of course, this requires rotating or moving the polarizer. If space permits, multiple laser receiving devices 45 can be used, and different laser receiving devices 45 correspond to detections at different positions. In this way, the polarizer can be fixed and the design is simpler. The machine tool is provided with multiple processing tool holders 103. It is costly to set a laser emitting device 32 for each processing tool holder 103, and several more polarizers can be set to separate the light beams multiple times. A second polarizer 49 can be set on the laser irradiation line to separate half of the laser to the tool holder reflector 48 of other tool holders, and then reflect it to the laser receiving device 45 through the side wall reflector 35. If the laser is irradiated on the central light sensing structure 46, the machine tool works normally. If the laser does not irradiate the central light sensing structure 46, it works abnormally. If the laser falls on a ring, it can be confirmed which abnormalities are more likely to occur, and these abnormalities are checked in detail.

Claims

1. A production line with a modular machine tool, characterized in that: The invention comprises a sawing machine (3), a combined machine tool (1), a chamfering machine (2) and a conveying mechanism (4), wherein the sawing machine (3) comprises a loading rack (301) and a feeding and cutting device (302), wherein the loading rack (301) comprises a loading area (310) and a feeding area (311), wherein the loading area (310) is provided with a supporting portion (312), wherein the supporting portion (312) is inclined downward so that a bar material (303) can automatically roll to a side close to the feeding area (311), wherein the feeding area (311) is provided with a diagonal support plate (313) which can lift up the bar material (303) close to the feeding area (311) and roll it to the feeding area (311), and wherein the feeding and cutting device (302) is provided with a supporting plate (313) which can lift up the bar material (303) close to the feeding area (311) and roll it to the feeding area (311), and wherein the feeding and cutting device (302) is provided with a supporting portion (312) which can lift up the bar material (303) close to the feeding area (311) and roll it to the feeding area (311). 02) is provided with a clamping and feeding structure capable of moving the bar material (303) to a cutting position for cutting; the conveying mechanism (4) comprises a first conveyor belt (401), a second conveyor belt (402) and a stacking robot arm (403); the first conveyor belt (401) is provided with a driving structure capable of conveying the sheet material (304) cut by the sawing machine (3) to the chamfering machine (2); the chamfering machine (2) chamfers the sheet material (304) and then conveys it to the combined machine tool (1) via the second conveyor belt (402); the stacking robot arm (403) removes the workpiece (305) processed by the combined machine tool (1) and clamps the sheet material (304) to the combined machine tool (1); The modular machine tool (1) includes an alarm device, which includes a detection device, an alarm device, a control circuit and a control device. The control device can emergency shut down part of the processing units or delay shutting down part of the processing units according to the control circuit instruction. The alarm device can emit sound, light or digital signal according to the control circuit instruction to prompt the staff that a fault has occurred. The detection device can detect one or more detection data and feed back to the control circuit. The detection data includes one or more of processing power, processing time, processing position, tool position or workpiece (305) position. The control circuit can comprehensively analyze and judge whether the modular machine tool (1) is working normally according to the detection data obtained from the detection device and issue a corresponding instruction. The combined machine tool is provided with a cross slide (104), a processing tool holder (103) is provided on the cross slide (104), a tool is mounted on the processing tool holder (103), a travel switch (30) is provided on the side or bottom of the processing tool holder (103) for detecting the position of the processing tool holder (103), the control circuit determines the processing time according to the time from when the tool starts working to when the travel switch (30) is triggered, and compares the processing time with the normal working time, and issues an alarm when the time exceeds a certain range, the processing tool holder (103) is provided with a position detection device for detecting the height of the processing tool holder (103) and the position degree of horizontal repeated positioning, a laser emitting device (32) is provided above or obliquely above the processing tool holder (103), the laser emitting device (32) is fixed to the frame (34) in a manner that it can rotate relative to the frame (34), and the laser emitting device (32) is provided with a reference support portion ( 33), the processing tool holder (103) is provided with a reference portion (44), the reference portion (44) abuts against the reference support portion (33) so that the laser emitting device (32) emits a light beam at a certain angle, at least one reflector (35) is arranged in the direction of the light beam irradiation, and a laser receiving device (45) is arranged on the processing tool holder (103), the reference support portion (33) of the laser emitting device (32) abuts against the reference portion (44) through a support point, the reference portion (44) is a plane, the reference support portion (33) is spherical, the plane of the reference portion (44) is not parallel to the two sliding directions of the cross slide (104), at least two sets of the laser emitting devices (32) are arranged, and the planes of the reference portions (44) on which the reference support portions (33) of the two sets of the laser emitting devices (32) act are at a certain angle, and at least one laser receiving device (45) is arranged.

2. The production line with modular machine tool according to claim 1, characterized in that: The feeding area (311) is provided with a plurality of limit frames (314), the plurality of limit frames (314) are arranged in parallel in a row, the limit frames (314) include a positioning substrate (315), a first baffle (316) and a second baffle (317), the first baffle (316) and the second baffle (317) are located on the positioning substrate (315), there is a certain space between the first baffle (316) and the second baffle (317) for placing the bar material (303) and limiting the bar material (303) to be in a certain position, the first baffle (316) is close to one side of the feeding area (311) and protrudes a certain height relative to the support portion (312) of the loading area (310) to ensure that the first baffle (316) can block the bar material (303) on the support portion (312).

3. The production line with modular machine tool according to claim 2, characterized in that: The positioning substrate (315) is provided with a strip hole (318) which can be fixed to the frame (325) by means of screws. The positioning substrate (315) is provided with a threaded hole extending in the horizontal direction. A screw rod (319) is provided in the threaded hole. A bevel gear (320) is provided at one end of the screw rod (319). The screw rod (319) is fixed to the frame (325) by means of a bearing. The bevel gear (320) matches with a driving bevel gear (321) so that the driving bevel gear (321) rotates to drive the bevel gear (320) to rotate. The screw rod (319) is further rotated to adjust the position of the positioning substrate (315).

4. The production line with modular machine tool according to claim 3, characterized in that: The loading area (310) and the feeding area (311) adopt an integrated frame (325) structure; the support portion (312) of the loading area (310) comprises an inclined support portion (322) and a horizontal support portion (323); the feeding area (311) is provided with a flexible foot pad (324) so ​​that the feeding area (311) can be lowered to a certain height under the action of an external force, so that the horizontal support portion (323) is tilted downward at a certain angle.

5. The production line with modular machine tool according to claim 1, characterized in that: Two groups of production lines are arranged symmetrically on both sides of the stacking robot arm (403), and the processing times of the two groups of production lines are staggered so that the two combined machine tools (1) clamp the workpieces (305) at different times.

6. The production line with modular machine tool according to claim 1, characterized in that: The production line is provided with a plurality of the combined machine tools (1), a plurality of the sawing machines (3), a chamfering machine (2) and a stacking robot arm (403); the plurality of the sawing machines (3) use the first conveyor belt (401) to convey the sheet material (304) cut by the sawing machines (3) to the chamfering machine (2); after the chamfering is completed, the chamfering machine (2) conveys the sheet material (304) to the stacking robot arm (403) via the second conveyor belt (402); and the stacking robot arm (403) loads and unloads materials according to the processing status of the combined machine tool (1).

7. The production line with modular machine tool according to claim 1, characterized in that: The stacking robot arm (403) is provided with a visual system which can locate the position of the workpiece (305) according to image recognition and clamp the workpiece (305).

8. The production line with modular machine tool according to any one of claims 1 to 7, characterized in that: The combined machine tool (1) comprises a magnetic attraction type rotary table, which comprises a magnetic attraction component (11), a control component (5), a workbench (6) and a slide seat (7). The workbench (6) and the slide seat (7) are made of ferromagnetic materials. The workbench (6) is directly or indirectly mounted on the slide seat (7) in a manner that it can rotate relative to the slide seat (7). The workbench (6) or the slide seat (7) is provided with a mounting position for the magnetic attraction component (11). The control component (5) controls the magnetic attraction force of the magnetic attraction component (11) on the workbench (6) or the slide seat (7) by changing the position or magnetism of the magnetic attraction component (11). The workbench (6) or the slide seat (7) can generate a magnetic attraction force on ferromagnetic components within a certain range under the action of the magnetic attraction component (11).

9. The production line with modular machine tool according to any one of claims 1 to 7, characterized in that: The combined machine tool (1) comprises a lockable rotary table, the lockable rotary table comprising a locking structure, a worktable (6) and a slide (7), the worktable (6) being directly or indirectly mounted on the slide (7) in a manner that it can rotate relative to the slide (7) around a rotation axis in a vertical direction, the locking structure comprising at least one moving member (61) capable of generating displacement or force in a vertical direction, the locking structure comprising at least one matching member (71) that abuts against the moving member (61) after movement, or a matching position (72) that abuts against the moving member (61) is provided on the worktable (6) and / or the slide (7), and the moving member (61) can generate a vertical force and a horizontal locking force when it moves to abut against the matching member (71) or the matching position (72).

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