Combined machine tool and machining method thereof

Abstract

The combined machine tool comprises a machine tool body and machining devices arranged on the machine tool body, and the machining devices comprise the first machining device arranged on a first machining station of the machine tool body and the second machining device arranged on a second machining station of the machine tool body. One side of the lathe bed is provided with an overturning conveying device which moves to and fro from a first processing station to a second processing station, the first processing station is provided with a first working table for fixing a workpiece, and the second processing station is provided with a second working table for fixing the workpiece. Automatic overturning and conveying of the workpieces can be achieved through the overturning and conveying device, the machining requirements of the workpieces are met, tedious positioning is not needed, the workpieces are machined in one step, and the machining efficiency of the workpieces is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, in particular to a combined machine tool and a processing method thereof. Background Art

[0002] The machining of workpieces generally requires milling of the top and bottom surfaces, milling of the side surfaces, and chamfering of edges. In actual production, the above three processes are completed by three machine tools respectively. After each machining process, the workpiece needs to be hoisted to the next machine tool by a manually operated overhead crane, and the workpiece needs to be repositioned after each transfer before processing. Existing workpiece processing machine tools lack integration and have low processing efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a combined machine tool and a processing method thereof, which can reduce the input of technical personnel, improve processing efficiency and reduce production costs.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a combined machine tool, including a bed and a processing device arranged on the bed, the processing device includes a first processing device arranged at a first processing station of the bed and a second processing device arranged at a second processing station of the bed, a flipping and conveying device for moving between the first processing station and the second processing station is provided on one side of the bed, a first worktable for fixing a workpiece is provided at the first processing station, and a second worktable for fixing a workpiece is provided at the second processing station; the flipping and conveying device includes an X-axis moving mechanism arranged on one side of the machine tool bed, a Y-axis moving mechanism arranged on the X-axis moving mechanism, and a Y-axis moving mechanism arranged on the Y-axis moving mechanism. The Z-axis moving mechanism on the moving mechanism, the rotating mechanism on the Z-axis moving mechanism and the clamping mechanism on the rotating mechanism; the X-axis moving mechanism includes a first slide rail provided on the bed, a first slide seat slidably matched with the first slide rail and a first driving assembly driving the first slide seat, the first slide rail is provided on the side of the bed and arranged along the length direction of the bed; the second processing device includes a milling face chamfering integrated milling head provided on both sides of the bed, the milling face chamfering integrated milling head includes a milling face mechanism and a chamfering mechanism, the milling face mechanism includes a face milling cutter, a first spindle box and a first motor driving the face milling cutter; the chamfering mechanism includes an upper chamfering mechanism and a lower chamfering mechanism. The principle of the present invention: multiple devices with different processing procedures are integrated on the same bed, and the positions of each processing station are relatively fixed and accurate, which is convenient for accurate conveying of the workpiece; each processing device shares a bed, the layout is more compact, effectively reduces the space occupied by the machine tool, and reduces the cost; the automatic flipping and conveying of the workpiece can be realized by using the flipping and conveying device, which meets the processing requirements of the workpiece, and does not require cumbersome positioning, and is in place in one step, greatly improving the processing efficiency of the workpiece.

[0005] As an improvement, the Y-axis moving mechanism includes a second slide rail arranged on the first slide, a second slide slidingly matched with the second slide rail, and a second driving assembly driving the second slide; the Z-axis moving mechanism includes a third slide rail arranged on the second slide, a third slide slidingly matched with the third slide rail, and a third driving assembly driving the third slide; the rotating mechanism includes a rotating shaft pivotally connected to the third slide, a fourth driving assembly driving the rotating shaft, and a rotating seat connected to the rotating shaft; the clamping mechanism includes a fourth slide rail arranged on the rotating seat, two chucks slidingly matched with the fourth slide rail, and a hydraulic cylinder driving the two chucks to move in opposite directions.

[0006] As an improvement, the first processing device includes a dual-spindle milling head and a first driving mechanism that drives the dual-spindle milling head to move up, down, left and right.

[0007] As an improvement, the first workbench includes a rotating table and a partition arranged in the middle of the rotating sleeve, the partition divides the rotating table into two areas, one area is a loading area, and the other area is a processing area, and the first processing device is located on one side of the processing area.

[0008] As an improvement, chip guard plates are provided in the loading area and processing area of ​​the turntable, and a chip cleaning drive mechanism for driving the chip guard plate to move back and forth is provided on the side of the turntable; both ends of the chip guard plate extend out of the work table surface to form an extension portion, and the chip cleaning drive mechanism acts on the extension portion, and a guide component is provided on the side of the turntable, and the extension portion slides with the guide component; the lower end of the chip guard plate is provided with a scraper plate that fits the work table surface, and one side of the chip guard plate is provided with a plurality of high-pressure nozzles facing the turntable.

[0009] As an improvement, the upper chamfering mechanism includes an upper chamfering cutter, a second spindle box, a second motor for driving the upper chamfering cutter to rotate, and a lifting drive mechanism for driving the second spindle box to lift and lower; the lower chamfering mechanism includes a lower chamfering cutter, a third spindle box, and a third motor for driving the lower chamfering cutter to rotate; the upper chamfering cutter is located above the lower chamfering cutter.

[0010] As an improvement, the face milling cutter includes a plane rough milling cutter and a plane finishing milling cutter. The plane finishing milling cutter is located behind the plane rough milling cutter and protrudes more than the plane rough milling cutter. The first spindle box is provided with a plane finishing milling spindle connected to the plane finishing milling cutter and a plane rough milling spindle connected to the plane rough milling cutter. The plane finishing milling spindle and the plane rough milling spindle are linked by belts or gears and driven by a first motor.

[0011] As an improvement, the second workbench includes a sliding table, a pad block arranged in the middle of the sliding table and a central clamping cylinder arranged above the pad block. First supporting cylinders are symmetrically provided on both sides of the length direction of the pad block, and second supporting cylinders are symmetrically provided on both sides of the width direction of the pad block. A first clamping cylinder is correspondingly provided above the first supporting cylinder, and a second clamping cylinder is correspondingly provided above the second supporting cylinder.

[0012] As an improvement, the sliding platform is provided with a pad, the pad block is arranged in the middle of the pad, the pad block and the pad are an integral structure, the first supporting oil cylinder and the second supporting oil cylinder are arranged on the pad; the first supporting oil cylinder includes a first oil chamber arranged on the pad, a first oil seal cooperating with the first oil chamber and a first piston rod arranged in the first oil chamber; the second supporting oil cylinder includes a second oil chamber arranged on the pad, a second oil seal cooperating with the second oil chamber and a second piston rod arranged in the second oil chamber.

[0013] The processing method of the present invention comprises the following steps: (1) performing milling processing on the top surface of the workpiece on the first workbench by using the first processing device, (2) After the top surface of the workpiece is processed, the workpiece is turned over by using a turning conveyor device, and the top and bottom surfaces of the workpiece are swapped for processing; (3) After the top and bottom surfaces of the workpiece are processed, the workpiece is transported to the second workbench by using a turning conveyor device; (4) The workpiece is clamped by the second workbench and then transported to the space between the integrated milling heads for milling and chamfering on both sides; (5) The four sides of the workpiece are milled by the milling mechanism, and at the same time, the edges of the workpiece are chamfered by the chamfering mechanism; (6) Complete the milling of the six faces of the workpiece and the chamfering of the four edges.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Multiple devices with different processing procedures are integrated on the same bed. The position of each processing station is relatively fixed and precise, which is convenient for accurate transportation of workpieces. Various processing devices share one bed, which has a more compact layout, effectively reducing the space occupied by the machine tool and reducing costs. The turning and conveying device can realize automatic turning and conveying of the workpiece to meet the processing needs of the workpiece, without the need for tedious positioning, and can be done in one step, greatly improving the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the combined machine tool.

[0016] Figure 2 This is a three-dimensional diagram of the combined machine tool.

[0017] Figure 3 This is an end view of the flip conveyor device cooperating with the bed.

[0018] Figure 4 Schematic diagram of the flip conveying device.

[0019] Figure 5 This is the front view of the first workbench.

[0020] Figure 6 This is a side view of the first workbench.

[0021] Figure 7 This is a top view of the first workbench.

[0022] Figure 8 This is a schematic diagram of the second processing device.

[0023] Fig. 9 This is a top view of the integrated milling head for milling and chamfering.

[0024] Fig.10 It is a side view schematic diagram of the integrated milling head for milling and chamfering.

[0025] Fig.11 It is a schematic diagram of another form of integrated milling head for milling and chamfering.

[0026] Fig.12 This is a top view of the double-sided milling cutter head.

[0027] Fig.13 This is a schematic diagram of the interior of the first spindle box of the double-sided milling cutter.

[0028] Fig.14 Schematic diagram of clamping small-sized workpiece on the second workbench.

[0029] Fig.15 Preset workpiece clamping diagram for the second table length.

[0030] Fig.16 Schematic diagram of clamping workpieces with a width exceeding the preset value on the second workbench. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figure 1 , 2 As shown, a combined machine tool includes an integrated bed 1, a first processing device 3 arranged at a first processing station at the front end of the bed 1, and a second processing device 6 arranged at a second processing station at the rear end of the bed, one side of the bed 1 is provided with a turning and conveying device 2 for traveling between the first processing station and the second processing station, a first workbench 4 for fixing a workpiece 7 is provided at the first processing station, and a second workbench 5 for fixing the workpiece 7 is provided at the second processing station.

[0033] like Figures 2 to 4As shown, the flip conveying device 2 includes an X-axis moving mechanism 21 arranged on one side of the bed 1, a Y-axis moving mechanism 22 arranged on the X-axis moving mechanism 21, a Z-axis moving mechanism 23 arranged on the Y-axis moving mechanism 22, a rotating mechanism 24 arranged on the Z-axis moving mechanism 23, and a clamping mechanism 25 arranged on the rotating mechanism 24. The X-axis moving mechanism 21 includes a first slide rail 211 arranged on the bed 1, a first slide seat 212 slidably matched with the first slide rail 211, and a first driving assembly driving the first slide seat 212; the first slide rail 211 is arranged on the side of the bed 1 and is arranged along the length direction of the bed 1, and a variety of processing devices can be integrated on the bed 1, and the workpieces can be conveyed in a continuous process through the X-axis moving mechanism 21; the first driving assembly includes a first nut arranged on the first slide seat 212, a first screw matched with the first nut, and a first motor driving the first screw. The Y-axis moving mechanism 22 includes a second slide rail 223 provided on the first slide 212, a second slide 222 slidably matched with the second slide rail 223, and a second driving assembly 221 driving the second slide 222; the second driving assembly 221 includes a second nut provided on the second slide 222, a second screw matched with the second nut, and a second motor driving the second screw. The Z-axis moving mechanism 23 includes a third slide rail 233 provided on the second slide 222, a third slide 232 slidably matched with the third slide rail 233, and a third driving assembly 231 driving the third slide 232; the third driving assembly 231 includes a third nut provided on the third slide 232, a third screw matched with the third nut, and a third motor driving the second screw. The rotating mechanism 24 includes a rotating shaft pivotally connected to the third slide 232, a fourth driving assembly driving the rotating shaft, and a rotating seat 251 connected to the rotating shaft; the fourth driving assembly includes a reducer and a fourth motor driving the reducer. The clamping mechanism 25 includes a fourth slide rail 253 arranged on a rotating seat 251, two chucks 252 slidingly matched with the fourth slide rail 253, and a hydraulic cylinder driving the two chucks 252 to move in opposite directions. The two chucks 252 move synchronously and have a centering function, so that the workpiece 7 can be clamped in a centering manner for more precise positioning. When the workpiece 7 is being processed, the chuck is arranged on one side of the bed 1 away from the processing area, and the chuck will not interfere with the processing of the workpiece 7; when the workpiece needs to be flipped, the X-axis moving mechanism 21 does not move, the Y-axis moving mechanism 22 moves and drives the Z-axis moving mechanism 23 and the clamping mechanism 25 to move toward the workpiece, and the clamping mechanism 25 flips the workpiece 7 under the same cooperation of the Y-axis moving mechanism 22, the Z-axis moving mechanism 23 and the rotating mechanism 24, such as flipping the workpiece 7 180 degrees and flipping the bottom surface to the processing position; after the workpiece 7 is processed, the clamping mechanism 25 can clamp the workpiece 7 again, and transport the workpiece 7 to the next workstation through the X-axis moving mechanism 21. Using a manipulator for clamping and transporting can reduce the secondary positioning work of the workpiece 7, facilitate automated processing and production, and help improve production efficiency.

[0034] like Figure 1 , 3 As shown, the first processing device 3 includes a crossbeam frame 31, a dual-spindle milling head 32 and a first driving mechanism 33 for driving the dual-spindle milling head 32 to move up, down, left and right. The crossbeam frame 31 is fixed to one side of the bed 1 and is arranged opposite to the flip conveying device 2. The first workbench 4 is located between the first processing device 3 and the flip conveying device 2. The dual-spindle milling head 32 has two parallel and vertically arranged spindles, one of which is equipped with a rough milling cutter disc at the lower end, and the other is equipped with a fine milling cutter disc at the lower end. The milling head can mill the top surface of the workpiece fixed on the first workbench, and the rough milling cutter disc and the fine milling cutter disc are integrated together to improve the milling efficiency of the milling head. After the surface processing of the workpiece 7 on the first workbench 4 is completed, the workpiece can be flipped 180 degrees by the flip conveying device 2 to complete the milling process of the top and bottom surfaces of the workpiece 7.

[0035] like Figures 5 to 7As shown, the first workbench 4 includes a rotating table 41 and a partition disposed in the middle of the rotating table 41; the partition divides the rotating table 41 into two areas, one of which is a loading area and the other is a processing area, the flip conveyor device is located on one side of the loading area, and the first processing device 3 is located on one side of the processing area. A chip guard plate 42 is provided in the loading area and the processing area of ​​the rotating table 41, and a chip cleaning drive mechanism 43 for driving the chip guard plate 42 to move back and forth is provided on one side of the rotating table 41; the partition plate can also be composed of two chip guard plates 42 back to back. The left and right ends of the chip guard plate 42 extend out of the rotating table 41 to form an extension 421. The extension 421 is bent into an L shape to enhance its structural strength. The lower end of the extension 421 extends downward to the side of the rotating table 41. The chip cleaning drive mechanism 43 acts on the extension 421. A guide component 46 is also provided on the side of the rotating table 41. The groove or slider on the extension 421 is slidably matched with the guide component 46. The guide component 46 can improve the stability of the movement of the chip guard plate 42. The lower end of the chip guard plate 42 is bent into an L-shaped portion to improve the structural strength of the chip guard plate 42. The L-shaped portion is provided with a scraper plate 45 that fits the surface of the rotating table 41 and a plurality of high-pressure nozzles 44 arranged in a line above the scraper plate 45. The scraper plate 45 is screwed to the chip guard plate 42. In this embodiment, the surface of the rotating table 41 is a plane, and the workpiece is fixed to the surface of the rotating table 1 by magnetic attraction. The chip cleaning drive mechanism 43 is a cylinder, a hydraulic cylinder, a gear rack or a screw nut mechanism. In this embodiment, a cylinder is used as a driving cylinder. The chip cleaning drive mechanisms 43 corresponding to the two chip guards are respectively located on both sides of the rotating table, driving the two chip guards 42 to move in opposite directions. The initial position of the chip guards 42 is in the middle of the rotating table 41. The loading area of ​​the rotating table 41 corresponds to the flipping conveyor device, and the dual-spindle milling head 32 is located above the processing area. The workpiece 7 is loaded to the loading area of ​​the rotating table 41 by manual or mechanical hands for processing. When the workpiece in the processing area is processed, the rotating table rotates 180 degrees, and the processed workpiece is transferred to the loading area and the workpiece to be processed is transferred to the processing area. The flipping conveyor device flips the workpiece 7 that has completed the top surface processing by 180 degrees. At the same time, the chip guard plate 42 moves outward to clean the iron chips on the rotating table 41. After the iron chips are cleaned, the flipping conveyor device puts the workpiece back in the loading area of ​​the rotating table 41.

[0036] like Figures 8 to 11As shown, the second processing device 6 includes a milling and chamfering integrated milling head 61 arranged on both sides of the bed, and the milling and chamfering integrated milling heads 61 on both sides can perform milling and chamfering processing on the workpiece 7 at the same time. The milling and chamfering integrated milling head 61 includes a milling mechanism 611 and a chamfering mechanism 612. The milling mechanism 611 includes a face milling cutter 6111, a first spindle box 6112, a first motor driving the face milling cutter 6111, and a feeding mechanism driving the first spindle box 6112 to move back and forth; the first motor drives the face milling cutter 6111 to rotate by driving the spindle in the first spindle box 6112, and the feeding mechanism adopts a screw nut mechanism. As shown Fig.12 , 13 As shown, in this embodiment, the face milling cutter can also be set to two, the face milling cutter includes a plane rough milling cutter 6113 and a plane fine milling cutter 6114, the plane fine milling cutter 6114 is located behind the plane rough milling cutter 6113, and the plane fine milling cutter 6114 protrudes forward than the plane rough milling cutter 6113. The former face milling cutter is responsible for rough milling the plane and removing most of the machining allowance, and the latter face milling cutter is responsible for fine milling the plane. When working, the plane rough milling cutter 6113 processes first, and the plane fine milling cutter 6114 processes later, so that the rough milling and fine milling processes can be completed at one time; the first spindle box 6112 is provided with a plane fine milling cutter 6113 connected to the plane fine milling cutter 6114. 4 and the plane rough milling spindle 6116 connected to the plane rough milling cutter 6113, the plane finishing spindle 6117 and the plane rough milling spindle 6116 are linked by a belt 6119 and driven by a first motor 6115; the first motor 6115 is directly connected to the plane finishing spindle 6117 through a pulley coupling assembly 6118, the spindle speed is relatively high, suitable for plane finishing, the first motor 6115 is connected to the plane rough milling spindle 6116 through a synchronous pulley 6110, and the speed is reduced to increase the output torque of the plane rough milling spindle 6116, which is suitable for heavy rough milling. Figures 9 to 11As shown, the chamfering mechanism 612 includes an upper chamfering mechanism and a lower chamfering mechanism. When there is only one face milling cutter, the upper chamfering mechanism and the lower chamfering mechanism are located behind the face milling cutter. When two face milling cutters are provided, the upper chamfering cutter and the lower chamfering cutter are located between the plane rough milling cutter 6113 and the plane fine milling cutter 6114. The upper chamfering mechanism includes an upper chamfering cutter 6121, a second spindle box 6122, a second motor for driving the upper chamfering cutter 6121 to rotate, and a driving mechanism 6123 for driving the second spindle box 6122 to rise and fall. The driving mechanism 6123 includes a sliding assembly provided between the second spindle box 122 and the first spindle box 6112, and a sliding assembly connected to the second spindle box 6122. A nut seat, a screw rod matched with the nut seat and a fourth motor driving the screw rod; the lower chamfering mechanism includes a lower chamfering cutter 6124, a third spindle box 6125 and a third motor driving the lower chamfering cutter 6124 to rotate; the upper chamfering mechanism and the lower chamfering mechanism are arranged on the first spindle box 6112, the upper chamfering cutter 6121, the lower chamfering cutter 6124 and the face milling cutter 6111 are fed synchronously, and after the position of the workpiece 7 is determined, the milling and chamfering can be performed at one time; the upper chamfering cutter 6121 is located above the lower chamfering cutter 6124, the upper chamfering cutter 6121 can be arranged in a horizontal or vertical type, and the upper and lower chamfering cutters 6124 can chamfer the upper and lower sides of the workpiece 7 at the same time. The milling and chamfering cutters are integrated together, and the workpiece 7 can be chamfered while being milled. Two different processes can be completed at one time, shortening the process flow and improving processing efficiency. The position of the lower chamfering cutter 6124 is fixed, and the position of the upper chamfering cutter 6121 can be adjusted up and down according to the thickness of the workpiece 7.

[0037] like Figures 14 to 16As shown, the second workbench 5 is arranged between two integrated milling heads 61 for milling and chamfering, and the second workbench 5 comprises a sliding table 50, a cushion block 54 arranged in the middle of the sliding table 50, and a central clamping oil cylinder 52 arranged above the cushion block 54, and the positions of the cushion block 54 and the central clamping oil cylinder 52 correspond. The cushion block 54 is symmetrically provided with first supporting oil cylinders 55 on both sides of the length direction, and the cushion block 54 is symmetrically provided with second supporting oil cylinders 57 on both sides of the width square of the cushion block 54, and when the piston rods of the first supporting oil cylinder 55 and the second supporting oil cylinder 57 are extended to the maximum stroke, the top of the piston rod is at the same height as the cushion block 54; the first clamping oil cylinder 56 is correspondingly provided above the first supporting oil cylinder 55, and the second clamping oil cylinder 58 is correspondingly provided above the second supporting oil cylinder 57, and the supporting oil cylinder and the clamping oil cylinder cooperate to clamp the workpiece. The sliding table 50 is provided with a pad 51, and the pad block 54 is arranged in the middle of the pad 51. The pad block 54 and the pad 51 are an integral structure or a split structure. The first supporting oil cylinder 55 and the second supporting oil cylinder 57 are arranged on the pad 51. The first supporting oil cylinder 55 includes a first oil chamber arranged on the pad 51, a first oil seal matched with the first oil chamber and a first piston rod arranged in the first oil chamber; the second supporting oil cylinder 57 includes a second oil chamber arranged on the pad 51, a second oil seal matched with the second oil chamber and a second piston rod arranged in the second oil chamber. The sliding table 50 cooperates with the bed through the slide rail. When the sliding table 50 is loaded, it slides out of the working area of ​​the second processing device 6. The turning conveying device 2 can convey the workpiece processed by the first processing device 3 to the sliding table 50 of the second workbench 5 along the X-axis moving mechanism 21. After the second workbench 5 fixes the workpiece 7, the sliding table 50 slides into the working area of ​​the second processing device 6 with the workpiece 7. The second workbench 5 is used to replace the work of manually adding or reducing the equal-height pads 54. After the size of the workpiece is input into the system, the system automatically calculates and determines whether equal-height blocks are needed; when processing small workpieces, only the center pad 54 and the center clamping cylinder 52 are used to clamp the workpiece; when the length direction of the workpiece exceeds the preset workpiece length, the system automatically energizes the solenoid valve of the hydraulic station, and passes hydraulic oil to the first supporting cylinder 55 and the first clamping cylinder 56 in the front and rear directions, and the piston rods of the two first supporting cylinders 55 extend to the same height as the pad 54 and support the workpiece, and the two corresponding first clamping cylinders 56 extend and clamp the workpiece; when the width direction of the workpiece exceeds the preset workpiece width, the system automatically energizes the solenoid valve of the hydraulic station, and passes hydraulic oil to the second supporting cylinders 57 and the second clamping cylinders 58 in the left and right directions, and the piston rods of the two second supporting cylinders 57 extend to the same height as the pad 54 and support the workpiece, and the two corresponding second clamping cylinders 58 extend and clamp the workpiece.

[0038] The processing method of the combined machine tool of the present invention comprises the following steps: (1) performing milling processing on the top surface of the workpiece on the first workbench by using the first processing device, (2) After the top surface of the workpiece is processed, the workpiece is turned over by using a turning conveyor device, and the top and bottom surfaces of the workpiece are swapped for processing; (3) After the top and bottom surfaces of the workpiece are processed, the workpiece is transported to the second workbench by using a turning conveyor device; (4) The workpiece is clamped by the second workbench and then transported to the space between the integrated milling heads for milling and chamfering on both sides; (5) The four sides of the workpiece are milled by the milling mechanism, and at the same time, the edges of the workpiece are chamfered by the chamfering mechanism; (6) Complete the milling of the six faces of the workpiece and the chamfering of the four edges.

[0039] The principle of the present invention is as follows: multiple devices with different processing procedures are integrated on the same bed, and the position of each processing station is relatively fixed and precise, which is convenient for accurate transportation of workpieces; various processing devices share one bed, and the layout is more compact, which effectively reduces the space occupied by the machine tool and reduces costs; the turning and conveying device can be used to realize automatic turning and conveying of the workpiece to meet the processing needs of the workpiece, and there is no need for tedious positioning, which can be done in one step, greatly improving the processing efficiency of the workpiece; the various processing devices are automatically connected by the turning and conveying device, without the intervention of technical personnel, which can reduce personnel input and avoid processing errors caused by human errors.

Claims

1. A modular machine tool, comprising a bed and a processing device arranged on the bed, characterized in that: The processing device comprises a first processing device arranged at a first processing station of the bed and a second processing device arranged at a second processing station of the bed; a flipping and conveying device for moving between the first processing station and the second processing station is arranged at one side of the bed; a first worktable for fixing the workpiece is arranged at the first processing station, and a second worktable for fixing the workpiece is arranged at the second processing station; the flipping and conveying device comprises an X-axis moving mechanism arranged at one side of the machine tool bed, a Y-axis moving mechanism arranged on the X-axis moving mechanism, a Z-axis moving mechanism arranged on the Y-axis moving mechanism, and a Z-axis moving mechanism arranged on the Z-axis moving mechanism. A rotating mechanism and a clamping mechanism arranged on the rotating mechanism; the X-axis moving mechanism includes a first slide rail arranged on the bed, a first slide seat slidingly matched with the first slide rail, and a first driving assembly driving the first slide seat, the first slide rail is arranged on the side of the bed and arranged along the length direction of the bed; the second processing device includes a milling and chamfering integrated milling head arranged on both sides of the bed, the milling and chamfering integrated milling head includes a milling mechanism and a chamfering mechanism, the milling mechanism includes a face milling cutter, a first spindle box and a first motor driving the face milling cutter; the chamfering mechanism includes an upper chamfering mechanism and a lower chamfering mechanism.

2. A modular machine tool according to claim 1, characterized in that: The Y-axis moving mechanism includes a second slide rail arranged on the first slide, a second slide slidingly matched with the second slide rail, and a second driving assembly driving the second slide; the Z-axis moving mechanism includes a third slide rail arranged on the second slide, a third slide slidingly matched with the third slide rail, and a third driving assembly driving the third slide; the rotating mechanism includes a rotating shaft pivotally connected to the third slide, a fourth driving assembly driving the rotating shaft, and a rotating seat connected to the rotating shaft; the clamping mechanism includes a fourth slide rail arranged on the rotating seat, two chucks slidingly matched with the fourth slide rail, and a hydraulic cylinder driving the two chucks to move in opposite directions.

3. A modular machine tool according to claim 1, characterized in that: The first processing device includes a dual-spindle milling head and a first driving mechanism that drives the dual-spindle milling head to move up, down, left, and right.

4. A modular machine tool according to claim 1, characterized in that: The first workbench includes a rotating table and a partition arranged in the middle of the rotating sleeve, the partition divides the rotating table into two areas, one area is a loading area, and the other area is a processing area, and the first processing device is located on one side of the processing area.

5. A modular machine tool according to claim 4, characterized in that: The feeding area and processing area of ​​the turntable are provided with chip guard plates, and the side of the turntable is provided with a chip cleaning drive mechanism for driving the chip guard plates to move back and forth; the two ends of the chip guard plate extend out of the work table surface to form an extension part, and the chip cleaning drive mechanism acts on the extension part, and the side of the turntable is provided with a guide component, and the extension part is slidably matched with the guide component; the lower end of the chip guard plate is provided with a scraper plate that fits the work table surface, and one side of the chip guard plate is provided with a plurality of high-pressure nozzles facing the turntable.

6. A modular machine tool according to claim 1, characterized in that: The upper chamfering mechanism includes an upper chamfering cutter, a second spindle box, a second motor for driving the upper chamfering cutter to rotate, and a lifting drive mechanism for driving the second spindle box to lift and lower. The lower chamfering mechanism includes a lower chamfering cutter, a third spindle box, and a third motor for driving the lower chamfering cutter to rotate. The upper chamfering cutter is located above the lower chamfering cutter.

7. A modular machine tool according to claim 6, characterized in that: The face milling cutter includes a plane rough milling cutter and a plane finishing milling cutter. The plane finishing milling cutter is located behind the plane rough milling cutter and protrudes more than the plane rough milling cutter. The first spindle box is provided with a plane finishing milling spindle connected to the plane finishing milling cutter and a plane rough milling spindle connected to the plane rough milling cutter. The plane finishing milling spindle and the plane rough milling spindle are linked by belts or gears and driven by a first motor.

8. A modular machine tool according to claim 1, characterized in that: The second workbench includes a sliding table, a pad block arranged in the middle of the sliding table and a central clamping cylinder arranged above the pad block. First supporting cylinders are symmetrically provided on both sides of the length direction of the pad block, and second supporting cylinders are symmetrically provided on both sides of the width direction of the pad block. A first clamping cylinder is correspondingly provided above the first supporting cylinder, and a second clamping cylinder is correspondingly provided above the second supporting cylinder.

9. A modular machine tool according to claim 8, characterized in that: The sliding platform is provided with a pad, the pad block is arranged in the middle of the pad, the pad and the pad are an integral structure, the first supporting oil cylinder and the second supporting oil cylinder are arranged on the pad; the first supporting oil cylinder includes a first oil chamber provided on the pad, a first oil seal cooperating with the first oil chamber and a first piston rod provided in the first oil chamber; the second supporting oil cylinder includes a second oil chamber provided on the pad, a second oil seal cooperating with the second oil chamber and a second piston rod provided in the second oil chamber.

10. A processing method of the modular machine tool as claimed in claim 1, characterized in that: The following steps are involved: (1) performing milling processing on the top surface of the workpiece on the first workbench by using the first processing device, (2) After the top surface of the workpiece is processed, the workpiece is turned over by using a turning conveyor device, and the top and bottom surfaces of the workpiece are swapped for processing; (3) After the top and bottom surfaces of the workpiece are processed, the workpiece is transported to the second workbench by using a turning conveyor device; (4) The workpiece is clamped by the second workbench and then transported to the space between the integrated milling heads for milling and chamfering on both sides; (5) The four sides of the workpiece are milled by the milling mechanism, and at the same time, the edges of the workpiece are chamfered by the chamfering mechanism; (6) Complete the milling of the six faces of the workpiece and the chamfering of the four edges.

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