An integrated machine tool integrating functions of feeding, drilling, deburring and chamfering

Abstract

The application discloses an integrated machine tool integrating feeding, discharging, drilling, deburring and chamfering functions, which comprises a machining table, an X-axis sliding table, a Y-axis sliding table, a clamping and positioning mechanism and a feeding and discharging mechanism, wherein the discharging mechanism comprises a base, a main frame, a material guide groove, a material taking device and a material receiving device; the base is installed on the machining table; the main frame is fixed vertically on the base; the material guide groove is arranged obliquely, with its lower end fixed to the top of the main frame and its upper end extending to the upper side of the main frame; a strip-shaped hole is formed in the material guide groove along its length direction, extending from the upper end of the material guide groove to the area above the top of the main frame; the material taking device and the material receiving device are respectively installed on the side wall of the main frame and located on the two sides of the material guide groove; the material taking device can transfer the workpiece to the clamping and positioning mechanism in the working area of the machining table for clamping and positioning for subsequent machining, and the material taking device can transfer the machined workpiece in the clamping and positioning mechanism to the material receiving device; and the application has high integration degree, can adapt to feeding and discharging and has compact structure.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of precision machine tool manufacturing, and particularly relates to an integrated machine tool integrating feeding, discharging, drilling, deburring and chamfering functions. BACKGROUND

[0002] In the fields of aerospace and precision instruments, the machining of fasteners (such as bolts) needs to meet strict shape and position tolerances and surface quality requirements. In the traditional production process, the stop rotation hole machining, deburring and chamfering are usually completed in multiple processes: first, the hole position is machined by a drilling and tapping machine (such as the bidirectional automatic drilling and tapping machine described in CN115351324A), and then the burr is cleaned and chamfered on a special device. The existing technology (CN115351324A) has the problems of dispersed processes and low production efficiency. In the production process, the workpiece needs to be repeatedly clamped and transported, which leads to loss of positioning accuracy and easily causes surface damage due to bumping, affecting the product qualification rate (especially for high-value aerospace fasteners). Although the existing technology (CN115351324A) can realize bidirectional drilling and basic feeding, it still relies on manual intervention or independent equipment for burr processing and chamfering after discharging, which restricts the production efficiency. Manual deburring has high labor intensity and poor consistency, which is difficult to meet the batch production demand.

[0003] In addition, when the feeding mechanism of the existing technology (CN115351324A) sends the workpiece into the mold through the feeding slot from the gap on the side of the mold, the workpiece is easy to bump with the side wall of the mold gap and cause surface damage. When the discharging mechanism of the existing technology (CN115351324A) pushes the machined workpiece out of the mold, the workpiece is also easy to bump with the side wall of the mold gap and cause surface damage.

[0004] Therefore, it is urgent to develop an integrated machine tool integrating continuous feeding, drilling, automatic discharging, online deburring and chamfering functions to break through the limitations of the existing technology and realize high-precision and full-process automatic machining of fasteners. SUMMARY

[0005] The application aims to provide an integrated machine tool integrating continuous feeding, discharging, deburring and chamfering functions, which can automatically realize efficient and accurate feeding and discharging, and also has the functions of deburring and chamfering after drilling, thereby improving the machining efficiency of the workpiece.

[0006] The application achieves the above-mentioned purpose by the following technical solutions:

[0007] The utility model provides an integrated machine tool of integrated feeding, drilling, deburring and chamfering function, including the processing table of the work area in the middle, two X -axis sliding tables can be transversely displaced along X -axis direction are installed on the processing table, the processing unit is installed on every X -axis sliding table, and the opposite inner side of two processing units is equipped with a plurality of main shafts with cutter, and the main shafts of two side processing units are coaxially arranged on both sides of the work area, a Y -axis sliding table can be vertically displaced along Y -axis direction is installed on the processing table between two X -axis sliding tables, the clamping positioning mechanism that can vertically displace with Y -axis sliding table in the work area is installed on Y -axis sliding table, still including feeding mechanism, the feeding mechanism includes base, main frame body, material guide groove, material taking device and material receiving device, the base is installed on the processing table, the main frame body is vertically fixed on the base, the material guide groove is obliquely arranged, and its lower end is fixed on the top of main frame body, and the upper end extends to the side of main frame body, a strip hole is formed in the length direction of material guide groove, the strip hole extends from the upper end of material guide groove to the area above the top of main frame body, and is used for placing and conveying workpiece, the material taking device and material receiving device are installed on the side wall of main frame body and are located on both sides of material guide groove, the material taking device can transfer the workpiece in the strip hole of the lower end of material guide groove to the clamping positioning mechanism in the work area of processing table and is clamped and positioned, and then subsequent processing is carried out, and the material taking device can transfer the workpiece processed in the clamping positioning mechanism to the material receiving device and is collected.

[0008] Further, the material taking device includes a support plate, a guide plate, a longitudinal slide, an automatic telescopic rod one, a vertical slide, an automatic telescopic rod two, a material taking head, and a vacuum pump; the lower end of the support plate is fixed on the top side wall of the main frame body, and the upper end extends to the top side of the main frame body; one end of the guide plate is fixed on the top of the support plate, and the other end extends longitudinally to the side above the work area of the processing table; the longitudinal slide is slidingly installed on the guide plate and can slide longitudinally to the side above the work area of the processing table; the automatic telescopic rod one is longitudinally fixed on the guide plate, and the telescopic end is fixedly connected with the longitudinal slide; the vertical slide is slidingly installed on the side of the longitudinal slide facing the top of the main frame body and can slide vertically along the longitudinal slide; the automatic telescopic rod two is vertically fixed on the top of the longitudinal slide, and the telescopic end is fixedly connected with the top of the vertical slide downward; the material taking head is a hollow pipe body vertically fixed on the vertical slide, a suction cup is installed at the lower end of the material taking head, a hole communicating with the inside of the material taking head is arranged in the middle of the suction cup, the upper end of the material taking head is communicated with the vacuum pump through a conduit, and the material taking head can move to the position directly above the clamping positioning mechanism with the longitudinal slide.

[0009] Further, the material receiving device comprises a fixed block, a fixed groove plate, a movable groove plate and an automatic telescopic rod three; the fixed block is fixedly installed on the other side of the main frame body relative to the support plate; the fixed groove plate is a groove body with a downward inclined notch fixed on the fixed block, and the upper end thereof is open and faces the material taking device; the movable groove plate is a groove plate with an upward inclined notch slidably installed in the fixed groove plate, and the lower end thereof is open and faces the fixed groove plate; the automatic telescopic rod three is installed on the side wall of the fixed groove plate, and the telescopic end thereof is fixedly connected with the side wall of the movable groove plate and can push one end of the movable groove plate to be below the material taking head.

[0010] Further, the material receiving device further comprises a material receiving frame, which is fixed on the side wall of the main frame body and located below the fixed groove plate, and the bottom of the material receiving frame is a flexible metal mesh structure.

[0011] Further, the integrated machine tool integrating the functions of feeding, discharging, drilling, deburring and chamfering further comprises a rotary driving mechanism for driving the axial rotation of the clamping and positioning mechanism and a Z-axis lifting mechanism for driving the up-and-down displacement of the clamping and positioning mechanism along the Z-axis.

[0012] The rotary driving mechanism comprises a bottom plate, a speed reducer, a driving motor and a rotary table, the bottom plate is arranged vertically above the Y-axis sliding table, the speed reducer is fixed on the top of the bottom plate, the output shaft of the speed reducer is arranged vertically upward, the driving motor is fixed on the bottom plate and connected with the input shaft of the speed reducer (through a shaft coupling), and the rotary table is horizontally arranged above the speed reducer and fixedly connected with the output shaft of the speed reducer at the bottom, and the top of the rotary table is fixedly connected with the bottom of the clamping and positioning mechanism.

[0013] The Z-axis lifting mechanism comprises a wedge-shaped block, a sliding block, a guide device and an automatic telescopic rod four, the wedge-shaped block is fixed longitudinally at the bottom of the bottom plate and the lower surface thereof is inclined, the upper end of the sliding block is slidably connected with the lower surface of the wedge-shaped block, the lower end of the sliding block is slidably connected with the top of the Y-axis sliding table, and the sliding block can move along the longitudinal direction of the wedge-shaped block, the guide device is arranged at four corners between the Y-axis sliding table and the clamping and positioning mechanism, each guide device comprises a guide cylinder and a guide rod, the guide cylinder is vertically fixed on the top edge of the Y-axis sliding table, the lower end of the guide rod is slidably sleeved in the guide cylinder, and the upper end of the guide rod is fixedly connected with the bottom of the clamping and positioning mechanism, and the automatic telescopic rod four is a longitudinal electric push rod fixedly connected with the sliding block.

[0014] The beneficial effects of the present application relative to the prior art are that:

[0015] (1) High integration: the present application integrates feeding, discharging, drilling, deburring and chamfering into one, eliminates process circulation and improves processing efficiency;

[0016] (2) Self-adaptive feeding and discharging: the present application adopts an inclined guide chute and a strip-shaped hole, supports continuous conveying of workpieces without intervention, and is compatible with bolts and special-shaped parts of bolt-like structure; the two-axis linkage (longitudinal slider + vertical slider) of the taking device accurately grasps the workpiece to the clamping position by the vacuum chuck, and the precision is high. At the same time, the movable groove plate is driven by the telescopic rod to stretch out to the position directly below the taking head, realizing "zero drop" workpiece transfer and avoiding bumping; the elastic net structure of the receiving frame absorbs impact, reducing the workpiece damage rate.

[0017] (3) Compact structure: the Z-axis lifting mechanism is adopted to realize lifting by the cooperation of the wedge block and the slider, replacing the traditional lifting mechanism, greatly compressing the height space, and adapting to the low workshop environment; and the Y-axis sliding table drives the workpiece to be clamped once and alternately passes through each tool to complete the machining of both sides of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Figure 1 It is a structural schematic view of the integrated machine tool integrating feeding, discharging, drilling, deburring and chamfering functions.

[0020] Figure 2 It is a structural schematic view of the integrated machine tool integrating feeding, discharging, drilling, deburring and chamfering functions from another perspective.

[0021] Figure 3 It is a structural schematic view of the machining table.

[0022] Figure 4 It is a connection structural schematic view of the X-axis sliding table, the Y-axis sliding table, the clamping and positioning mechanism, the rotary driving mechanism and the Z-axis lifting mechanism.

[0023] Figure 5 It is a connection structural schematic view of the clamping and positioning mechanism, the rotary driving mechanism and the Z-axis lifting mechanism.

[0024] Figure 6 It is a connection schematic view of the clamping and positioning mechanism and the rotary driving mechanism.

[0025] Figure 7 It is a structural schematic view of the Z-axis lifting mechanism.

[0026] Figure 8 It is a structural schematic view of the feeding and discharging mechanism.

[0027] Figure 9 It is a structural schematic view of the feeding and discharging mechanism from another perspective.

[0028] As shown in the figure: 1- processing platform, 2- X-axis sliding table, 3- Y-axis sliding table, 4- clamping positioning mechanism, 5- rotary drive mechanism, 51- bottom plate, 52- speed reducer, 53- drive motor, 54- rotary table, 6- Z-axis lifting mechanism, 61- wedge block, 62- sliding block, 63- guide tube, 64- guide rod, 65- automatic telescopic rod four, 7- feeding and discharging mechanism, 71- base, 72- main frame body, 73- guide chute, 74- support plate, 75- guide plate, 76- longitudinal sliding block, 77- automatic telescopic rod one, 78- vertical sliding block, 79- automatic telescopic rod two, 710- material taking head, 711- fixed block, 712- fixed groove plate, 713- movable groove plate, 714- automatic telescopic rod three, 715- material receiving frame, 8- processing unit, 9- main shaft, 10- guide rail, 11- ball screw linear driver. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described herein below with reference made to specific embodiments. Those who are skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in the present specification. The described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

[0030] It should be noted that the structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the contents disclosed in the present specification for those skilled in the art to understand and read, and are not used to limit the defined conditions that the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that the present application can produce, shall still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the present specification are only for clear description, and not for limiting the scope of the present application, and the change or adjustment of the relative relationship without substantially changing the technical content shall be considered as the implementation scope of the present application.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] As Figure 1 With Figure 2As shown, this embodiment provides an integrated machine tool that integrates feeding and unloading, drilling, deburring and chamfering functions, including a machine tool housing and the following components installed in the machine tool housing: a processing table 1, two X-axis slides 2, a Y-axis slide 3, a clamping and positioning mechanism 4, a rotary drive mechanism 5, a Z-axis lifting mechanism 6, and a feeding and unloading mechanism 7.

[0033] like Figures 1-3 As shown, the machining table 1 serves as the support and mounting base for the machine tool, with its central section being the working area. Two sets of guide rails 10 are symmetrically mounted laterally along the X-axis (horizontal plane, left-right direction) on the machining table 1, located on the left and right sides of the working area. Simultaneously, a set of guide rails 10 is longitudinally mounted along the Y-axis (horizontal plane, front-back direction) within the working area of ​​the machining table 1. Each set of guide rails 10 consists of two parallel tracks, each with a T-shaped or I-shaped cross-section. A ball screw linear actuator 11 is installed between each set of guide rails 10. The ball screw of the linear actuator 11 is rotatably mounted between the two tracks of each set of guide rails and is parallel to these tracks. The motor of the ball screw linear actuator 11 is mounted on the machining table and coaxially connected to the ball screw via a coupling, driving the ball screw to rotate. A ball nut is threaded onto the ball screw. All ball screw linear actuators 11 are equipped with protective covers.

[0034] like Figure 4 As shown, the two X-axis slides 2 are symmetrically arranged on the machining table 1 and can move laterally (left and right) along the X-axis direction. The two X-axis slides 2 are slidably mounted on the machining table 1 along the X-axis direction through the preset slide grooves at their bottoms, and can move linearly along the guide rails 10 on the machining table 1 under the drive of the ball screw linear driver 11 preset between their respective guide rails 10. The bottom of the X-axis slide 2 is fixedly connected to the ball nut in the ball screw linear driver 11 below it. A machining unit 8 is installed on each X-axis slide 2. Three spindles 9 with cutting tools are installed on the inner sides of two opposite machining units 8. That is, three pairs of spindles 9 are coaxially arranged on both sides of the working area. The cutting tools of each pair of spindles 9 are also coaxially aligned. The machining unit 8 includes a housing and a motor installed on the X-axis slide 2. The spindles 9 are rotatably installed in the housing. The other ends of the three spindles 9 extend out of the housing and are equipped with multi-wedge pulleys. The three spindles are linked with the multi-wedge pulleys preset on the motor shaft through belts. The three spindles 9 rotate under the drive of the motor. The cutting tools of one pair of spindles 9 (designated as cutting tool A) are used to drill holes in both directions at the head of the workpiece. The cutting tools of another pair of spindles 9 (designated as cutting tool B) are used to deburr the head of the workpiece and the drilled hole. The cutting tools of the remaining pair of spindles 9 (designated as cutting tool C) are used to chamfer the head of the workpiece.

[0035] like Figure 1 and Figure 2As shown, the Y-axis sliding table 3 is longitudinally arranged between the two X-axis sliding tables 2, and is slidably installed on the Y-axis direction preset guide rail 10 of the machining table 1 through the preset sliding groove at the bottom of the Y-axis sliding table 3, and can be driven by the preset ball screw linear driver 11 between the guide rails 10 to linearly displace (horizontally forward and backward) on the machining table 1 along the guide rail 10, and the bottom of the Y-axis sliding table 3 is fixedly connected with the ball nut in the ball screw linear driver 11 below.

[0036] As shown in Figure 4 With 5 As shown, the clamping and positioning mechanism 4 is installed above the Y-axis sliding table 3 and can displace longitudinally with the Y-axis sliding table 3 in the working area of the machining table, the clamping and positioning mechanism 4 selects a standard chuck commonly used in machine tool machining to realize clamping and positioning of the workpiece and ensure machining accuracy.

[0037] As shown in Figure 5 With Figure 6 As shown, the rotary drive mechanism 5 is used to drive the axial rotation of the clamping and positioning mechanism 4 to meet the multi-angle machining requirement, and the rotary drive mechanism 5 includes a bottom plate 51, a speed reducer 52, a drive motor 53 and a rotary table 54, the bottom plate 51 is arranged directly above the Y-axis sliding table 3; the speed reducer 52 is fixed on the top of the bottom plate 51, the output shaft (output end) thereof is vertically upward, and the input shaft (input end) thereof is transversely arranged; the drive motor 53 is fixed on the bottom plate 51 and connected with the input shaft of the speed reducer 52 (through a shaft coupling); the rotary table 54 is horizontally arranged above the speed reducer 52 and fixedly connected with the output shaft of the speed reducer 52 at the bottom, the top of the rotary table 54 is fixedly connected with the bottom of the clamping and positioning mechanism 4, and the rotary table 54 can be rotated above the speed reducer 52 under the drive of the drive motor 53, thereby driving the axial rotation of the clamping and positioning mechanism 5 and the workpiece clamped therein.

[0038] As shown in Figure 5 With Figure 7As shown, the Z-axis lifting mechanism 6 is used to drive the clamping positioning mechanism 4 to move up and down along the Z-axis direction to adapt to different machining heights; the Z-axis lifting mechanism 6 comprises a wedge block 61, a sliding block 62, a guide device, and an automatic telescopic rod four 65; the wedge block 61 is fixed longitudinally at the bottom of the bottom plate 51 and its lower surface is a slope, and the slope design converts the horizontal thrust into vertical displacement; the upper end of the sliding block 62 is in sliding fit with the lower surface of the wedge block 61, and the lower end of the sliding block 62 is in sliding fit with the top of the Y-axis sliding table 3, the sliding block 62 can move longitudinally along the inclined wedge block 61 to push the bottom plate 51 to move up and down; the guide device is four in number and is evenly installed at the four corners between the Y-axis sliding table 3 and the clamping positioning mechanism 4, each guide device comprises a guide cylinder 63 and a guide rod 64; the guide cylinder 63 is vertically fixed at the top edge of the Y-axis sliding table 3; the lower end of the guide rod 64 is slidably sleeved in the guide cylinder 63, and the upper end is fixed at the bottom of the clamping positioning mechanism 4; the automatic telescopic rod four 65 is a longitudinal electric push rod fixedly connected with the sliding block 62, used to push the sliding block 62 to move along the slope at the bottom of the wedge block 61, so as to make the bottom plate 51 and the clamping positioning mechanism 4 on the top of the bottom plate 51 move up and down. A buffer spring is also installed in each guide cylinder 63 below the guide rod 64.

[0039] As Figure 8 With Figure 9 As shown, the feeding and discharging mechanism comprises a base 71, a main frame body 72, a material guide groove 73, a material taking device, and a material receiving device.

[0040] The base 71 is installed on the machining table 1 as a supporting matrix of the feeding and discharging mechanism.

[0041] The main frame body 72 is vertically fixed on the base 71 to raise the height of the main components of the feeding and discharging mechanism 7, and also serves as a mounting matrix.

[0042] The material guide groove 73 is obliquely arranged, with its lower end fixed to the top of the main frame body 72 and its upper end extending above the side of the main frame body 72, and a strip-shaped hole is formed along the length direction of the material guide groove 73, which extends from the upper end of the material guide groove 73 to the area above the top of the main frame body 72, for placing and conveying workpieces. The material guide groove 73 is composed of two obliquely arranged and parallel plate bodies, the bottoms of the lower ends of the two parallel plate bodies are fixed on the main frame body 72 by bolts, and the upper ends of the two parallel plate bodies are connected by a plate body, and the distance between the two parallel plate bodies is adjustable (i.e. adjusting the position of the lower end fixedly connected with the main frame body 72 and replacing the plate for connecting the upper ends to achieve the adjustment) to adapt to workpieces of different sizes.

[0043] The material taking device and the material receiving device are respectively installed on the side wall of the main frame body 72 and located on both sides of the material guide groove 73. The material taking device can transfer the workpiece in the strip-shaped hole at the lower end of the material guide groove 73 to the clamping and positioning mechanism 4 in the working area of the machining table 1 for clamping and positioning, and then perform subsequent machining. The material taking device can transfer the workpiece machined in the clamping and positioning mechanism 4 to the material receiving device for collection.

[0044] The material taking device includes a support plate 74, a guide plate 75, a longitudinal sliding block 76, an automatic telescopic rod one 77, a vertical sliding block 78, an automatic telescopic rod two 79, a material taking head 710, and a vacuum pump. The lower end of the support plate 74 is fixed on the top side wall of the main frame body 72, and the upper end extends above the top side wall of the main frame body 72. One end of the guide plate 75 is fixed on the top of the support plate 74, and the other end extends longitudinally above the side of the working area of the machining table 1. The longitudinal sliding block 76 is slidingly installed on the guide plate 75 (by the cooperation of the sliding groove and the guide rail) and can slide longitudinally along the guide plate 75 to above the side of the working area of the machining table 1. The automatic telescopic rod one 77 is longitudinally fixed on the guide plate 75 (away from the working area) and its telescopic end is fixedly connected with the longitudinal sliding block 76, which can drive the longitudinal sliding block 76 to move longitudinally along the guide plate 75. The vertical sliding block 78 is slidingly installed on the side of the longitudinal sliding block 76 towards the top of the main frame body 72 (by the cooperation of the sliding groove and the guide rail) and can slide vertically along the longitudinal sliding block 76. The automatic telescopic rod two 79 is vertically fixed on the top of the longitudinal sliding block 76, and its telescopic end is fixedly connected with the top of the vertical sliding block 78 towards the bottom, which can drive the vertical sliding block 78 to move up and down along the longitudinal sliding block 76. The material taking head 710 is a hollow pipe body vertically fixed on the vertical sliding block 78. A suction cup is installed at the lower end of the material taking head 710. A hole communicating with the inside of the material taking head 710 is arranged in the middle of the suction cup. The upper end of the material taking head 710 is communicated with the vacuum pump through a conduit. The material taking head 710 can move to above the clamping and positioning mechanism 4 along with the longitudinal sliding block 76.

[0045] The receiving device comprises a fixed block 711, a fixed groove plate 712, a movable groove plate 713 and an automatic telescopic rod three 714; the fixed block 711 is fixedly installed on the other side of the main frame body 72 relative to the support plate 74; the fixed groove plate 712 is a groove body with a downward inclined notch fixed on the fixed block 711, the upper end of which is open and faces the material taking device, and the lower end is closed and extends out of the fixed block 711 away from the material taking device; the movable groove plate 713 is a groove plate with an upward inclined notch slidably installed in the fixed groove plate 712, the lower end of which is open and faces the fixed groove plate 712; the automatic telescopic rod three 714 is installed on the side wall of the fixed groove plate 712, and the telescopic end is fixedly connected with the side wall of the movable groove plate 713 and can push one end of the movable groove plate 713 to the position directly below the material taking head 710. The receiving device further comprises a receiving frame 715, which is fixed on the side wall of the main frame body 72 and located directly below the fixed groove plate 712, and the bottom of the receiving frame 715 is a flexible metal mesh structure. The automatic telescopic rod one 77, the automatic telescopic rod two 79 and the automatic telescopic rod three 714 are all air cylinders or electric push rods.

[0046] Working principle:

[0047] Taking the processing of a bolt as an example, the processing steps are as follows:

[0048] S1. Place the shank of the bolt in the strip-shaped hole of the material guide groove 73, and the head of the bolt is located above the material guide groove 73, the diameter of the head of the bolt is larger than the width of the strip-shaped hole, and the bolt slides along the strip-shaped hole to the area above the top of the main frame body 72 and is located directly below the suction cup at the bottom of the material taking head 710.

[0049] S2. Start the power supply and start the motors of the machine tool, so that the main shaft 9 rotates, and at the same time, the two X-axis sliding tables 2 move left and right respectively under the drive of the ball screw linear drives 10, away from the clamping positioning mechanism 4, the Y-axis sliding table 3 drives the clamping positioning mechanism 4 to move to the specified position under the drive of the ball screw linear drives 10, so that the clamping positioning mechanism 4 is located between the cutters A.

[0050] S3. Start the automatic telescopic rod two 79, so that the telescopic end of the automatic telescopic rod two 79 is extended to push the vertical sliding block 78 and the material taking head 710 to move downward along the longitudinal sliding block 76, the suction cup at the bottom of the material taking head 710 contacts the upper surface of the bolt head, the automatic telescopic rod two 79 stops, and at the same time, the vacuum pump is started and air is pumped out, so that negative pressure is generated in the suction cup, thereby tightly sucking the bolt to be lifted at the bottom.

[0051] S4. Start the automatic telescopic rod two 79 again, so that the telescopic end of the automatic telescopic rod two 79 is shortened and pulls the vertical sliding block 78 and the material taking head 710 and the bolt to move upward to a certain height, and then the automatic telescopic rod two 79 stops.

[0052] S5. Start the automatic telescopic rod one 77, the telescopic end of the automatic telescopic rod one 77 is elongated to push the vertical slider 78 and the vertical slider 78 on the longitudinal slider 76 and the bolt along the guide plate 75 to move longitudinally above the work area of the machining table 1, so that the stem of the bolt is located directly above the clamping positioning mechanism 4, and the automatic telescopic rod one 77 stops.

[0053] S6. Start the automatic telescopic rod two 79, make its telescopic end elongated to push the vertical slider 78 and the bolt downward, after the stem of the bolt is installed in the center of the clamping positioning mechanism 4, the automatic telescopic rod two 79 stops, at the same time, the vacuum pump smoothly inflates into the chuck, so that the inside of the chuck changes from negative pressure to zero pressure or slightly positive pressure, and the chuck (sucker) is separated from the bolt.

[0054] S7. Start the automatic telescopic rod two 79 again, make its telescopic end shortened to push the vertical slider 78 and the sucker upward to the clamping positioning mechanism 4, and the automatic telescopic rod two 79 stops.

[0055] S8. Start the automatic telescopic rod four 65 of the Z-axis lifting mechanism 6, use the slider 62 and the wedge block 61 to make the clamping positioning mechanism 4 drive the bolt to move up and down, so that the position of the hole to be drilled on the side of the head of the bolt is located between the two tool A, and then the automatic telescopic rod four 65 of the Z-axis lifting mechanism 6 stops.

[0056] S9. The two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move close to the clamping positioning mechanism 4 respectively, so that the tool A located on both sides of the clamping positioning mechanism 4 and rotating at high speed move towards the side wall of the bolt head to drill a hole.

[0057] S10. After the drilling is completed, the two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move left and right respectively again, away from the clamping positioning mechanism 4, and the Y-axis sliding table 3 drives the clamping positioning mechanism 4 to move to the next machining position under the drive of the ball screw linear drives 10, so that the clamping positioning mechanism 4 is located between the tool B.

[0058] S11. The two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move close to the clamping positioning mechanism 4 respectively, so that the tool B located on both sides of the clamping positioning mechanism 4 and rotating at high speed move towards the drilled hole of the side wall of the bolt head to perform deburring operation.

[0059] S12. After the deburring is completed, the two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move left and right respectively again, away from the clamping positioning mechanism 4, and the Y-axis sliding table 3 drives the clamping positioning mechanism 4 to move to the next machining position under the drive of the ball screw linear drives 10, so that the clamping positioning mechanism 4 is located between the tool C.

[0060] S13. Start the Z-axis lifting mechanism 6, and use the cooperation between the sliding block 62 and the wedge block 61 to make the bottom plate 51 drive the clamping and positioning mechanism 4 and the bolts on it to move upwards, so that the edge of the top of the bolt (the position above the drilled hole) is aligned between the cutters C of the two machining units, and then the automatic telescopic rod four 65 of the Z-axis lifting mechanism 6 stops.

[0061] S14. Start the driving motor 53 of the rotary driving mechanism 5, and drive the rotary table 54 and the clamping and positioning mechanism 4 and the bolts on it to rotate through the speed reducer 52.

[0062] S15. The two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move close to the clamping and positioning mechanism 4 respectively, so that the cutters C located on both sides of the clamping and positioning mechanism and rotating at high speed move towards the edge of the top of the bolt to perform chamfering.

[0063] S16. After the chamfering is completed, the driving motor 53 of the rotary driving mechanism 5 stops, the two X-axis sliding tables 2 are driven by the ball screw linear drives 10 to move left and right respectively away from the clamping and positioning mechanism 4, and the Y-axis sliding table 3 drives the clamping and positioning mechanism 4 to move to the initial machining position under the drive of the ball screw linear drive 10, so that the clamping and positioning mechanism 4 is repositioned between the cutters A.

[0064] S17. Start the automatic telescopic rod two 79, and make its telescopic end lengthen to push the vertical sliding block 78 and the material taking head 710 to move downwards, the suction cup at the bottom of the material taking head 710 contacts the upper surface of the head of the bolt whose machining is completed, the automatic telescopic rod two 79 stops, and at the same time the vacuum pump starts and pumps air to make the suction cup generate negative air pressure, so as to tightly suck the bolt to be lifted on its bottom.

[0065] S18. Start the automatic telescopic rod two 79 again, and make its telescopic end shorten and pull the vertical sliding block 78, the material taking head 710 and the bolt to move upwards to a certain height, and then the automatic telescopic rod two 79 stops.

[0066] S19. Start the automatic telescopic rod one 77, and make the telescopic end of the automatic telescopic rod one 77 shorten to pull the longitudinal sliding block 76 and the vertical sliding block 78, the material taking head 710 and the bolt on it to slide longitudinally along the guide plate 75 to the initial material taking position, and then the automatic telescopic rod one 77 stops.

[0067] S20. Start the automatic telescopic rod three 714, and make the telescopic end of the automatic telescopic rod three 714 lengthen to push the movable slot plate 713 of the material receiving device to move to the position directly below the material taking head 710 and the bolt at its bottom, and then the automatic telescopic rod three 714 stops. At the same time, the vacuum pump smoothly pumps air into the suction cup to make the air pressure in the suction cup change from negative to zero or slightly positive, and the bolt falls off the suction cup and slides along the movable slot plate 713 to the material receiving frame 715.

[0068] S21. The automatic telescopic rod three 714 is started, the telescopic rod three 714 is shortened, the movable slot plate 713 of the material receiving device is pulled away from the directly below of the sampling head 710, and is moved to the initial position, the automatic telescopic rod three 714 is stopped, and the bolt processing is completed once.

[0069] The subsequent bolt processing is repeatedly carried out by steps S3-S21.

[0070] Other details of the present application are conventional techniques known to those skilled in the art.

[0071] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices.

[0072] The protection scope of the present application is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical essence of the present application falls within the protection scope of the present application.

Claims

1. An integrated machine tool integrating the functions of loading and unloading, drilling, deburring and chamfering, comprising a machining table with a working area in the middle; two X-axis sliding tables capable of transverse displacement are installed on the machining table, a machining unit is installed on each X-axis sliding table, a plurality of main shafts with tools are installed on the opposite inner sides of the two machining units, and the main shafts of the two machining units are coaxially arranged on both sides of the working area; a Y-axis sliding table capable of longitudinal displacement is installed on the machining table between the two X-axis sliding tables; a clamping and positioning mechanism capable of longitudinal displacement in the working area along with the Y-axis sliding table is installed on the Y-axis sliding table; characterized in that : Also include for unloading mechanism, the feeding mechanism includes base, main frame, guide slot, material taking device and receiving device; the base is installed on the processing table; the main frame is vertically fixed on the base; the guide slot is obliquely arranged, and its lower end is fixed on the top of the main frame, and the upper end extends to the upper side of the main frame, a strip-shaped hole is formed in the length direction of the guide slot, the strip-shaped hole extends from the upper end of the guide slot to the area above the top of the main frame, and the strip-shaped hole is used for placing and conveying workpieces; the material taking device and the receiving device are respectively installed on the side wall of the main frame and located on both sides of the guide slot, the material taking device can transfer the workpiece in the strip-shaped hole at the lower end of the guide slot to the clamping and positioning mechanism of the working area of the processing table, and then the workpiece is clamped and positioned for subsequent processing, and the material taking device can transfer the workpiece processed in the clamping and positioning mechanism to the receiving device for collection; The material taking device comprises a support plate, a guide plate, a longitudinal sliding block, an automatic telescopic rod one, a vertical sliding block, an automatic telescopic rod two, a material taking head and a vacuum pump; the lower end of the support plate is fixed on the top side wall of the main frame, and the upper end extends to the top side of the main frame; one end of the guide plate is fixed on the top of the support plate, and the other end extends longitudinally to the upper side of the working area of the processing table; The longitudinal sliding block is slidably installed on the guide plate and can slide longitudinally to the upper side of the working area of the processing table; the automatic telescopic rod one is longitudinally fixed on the guide plate, and the telescopic end is fixedly connected with the longitudinal sliding block; the vertical sliding block is slidably installed on the side of the longitudinal sliding block towards the top of the main frame and can slide vertically along the longitudinal sliding block; the automatic telescopic rod two is vertically fixed on the top of the longitudinal sliding block, and the telescopic end is fixedly connected with the top of the vertical sliding block; the material taking head is a hollow pipe body vertically fixed on the vertical sliding block, a suction cup is installed at the lower end of the material taking head, a hole communicating with the inside of the material taking head is arranged in the middle of the suction cup, the upper end of the material taking head is communicated with the vacuum pump through a conduit, and the material taking head can move to the upper side of the clamping and positioning mechanism along with the longitudinal sliding block; The receiving device comprises a fixed block, a fixed slot plate, a movable slot plate and an automatic telescopic rod three; the fixed block is fixedly installed on the other side of the main frame relative to the support plate; the fixed slot plate is a groove body with a downward inclined slot fixed on the fixed block, and the upper end is open and faces the material taking device; the movable slot plate is a groove plate with an upward inclined slot slidably installed in the fixed slot plate, and the lower end is open and faces the fixed slot plate; the automatic telescopic rod three is installed on the side wall of the fixed slot plate, and the telescopic end is fixedly connected with the side wall of the movable slot plate and can push one end of the movable slot plate to the lower side of the material taking head.

2. The integrated machine tool of claim 1, wherein: The receiving device further comprises a receiving frame, the receiving frame is fixed on the side wall of the main frame and located below the fixed slot plate, and the bottom of the receiving frame is a flexible metal mesh structure.

3. The integrated machine tool of claim 1, wherein: The automatic telescopic rod one, the automatic telescopic rod two and the automatic telescopic rod three are air cylinders or electric push rods.

4. The integrated machine tool of claim 1, wherein: The clamping and positioning mechanism is a chuck.

5. The integrated machine tool of claim 1, wherein: The X-axis sliding table and the Y-axis sliding table are slidably installed on the machining table through two parallel guide rails pre-installed on the machining table, and the X-axis sliding table and the Y-axis sliding table are linearly displaced on the machining table under the driving of the ball screw linear drives pre-installed on the machining table, and the bottom of the X-axis sliding table and the bottom of the Y-axis sliding table are fixedly connected with ball nuts in the ball screw linear drives respectively.

6. The integrated machine tool of claim 1-5, wherein: The inner sides of the two machining units opposite to each other are respectively provided with three main shafts with cutters, that is, three pairs of main shafts are coaxially arranged on both sides of the working area, and the cutters of each pair of main shafts are also coaxially aligned; the cutters of one pair of main shafts are used for bidirectional drilling of the head of the workpiece, the cutters of the other pair of main shafts are used for deburring of the head of the workpiece and the drilled hole, and the cutters of the remaining pair of main shafts are used for chamfering of the head of the workpiece.

7. The integrated machine tool of claim 6, wherein The rotating driving mechanism and the Z-axis lifting mechanism are further included. The rotating driving mechanism includes a bottom plate, a speed reducer, a driving motor and a rotating table, the bottom plate is arranged directly above the Y-axis sliding table, the speed reducer is fixed on the top of the bottom plate, the output shaft of the speed reducer is vertically upward, the driving motor is fixed on the bottom plate and connected with the input shaft of the speed reducer, and the rotating table is horizontally arranged directly above the speed reducer and fixedly connected with the output shaft of the speed reducer at the bottom, and the top of the rotating table is fixedly connected with the bottom of the clamping and positioning mechanism. The Z-axis lifting mechanism includes a wedge block, a sliding block, four guide devices and an automatic telescopic rod, the wedge block is fixed longitudinally at the bottom of the bottom plate and the lower surface thereof is inclined, the upper end of the sliding block is in sliding fit with the lower surface of the wedge block, the lower end of the sliding block is in sliding fit with the top of the Y-axis sliding table, and the sliding block can move along the longitudinal direction of the wedge block, the four guide devices are evenly arranged at the four corners between the Y-axis sliding table and the clamping and positioning mechanism, each guide device includes a guide cylinder and a guide rod, the guide cylinder is vertically fixed at the top edge of the Y-axis sliding table, the lower end of the guide rod is slidably sleeved in the guide cylinder, and the upper end of the guide rod is fixed at the bottom of the clamping and positioning mechanism, and the automatic telescopic rod four is a longitudinal electric push rod fixedly connected with the sliding block.

8. The integrated machine tool of claim 7, wherein A buffer spring below the guide rod is further arranged in the guide cylinder of each guide device.

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