A precision machining machine tool and method of using the same

Abstract

The present invention relates to the field of machine tool technology, specifically to a precision machining machine tool and a method for using the same, comprising a machine tool base, wherein the top surface of the machine tool base is fixedly connected to a machine tool bottom mounting shell, the top surface of the machine tool bottom mounting shell is fixedly connected to a material buffer box, the outer surface of the machine tool base is fixedly connected to an outer support frame, the top surface of the outer support frame is provided with a cutter head driving mechanism, the top surface of the machine tool bottom mounting shell is provided with a rhythm control mechanism, the top surface of the machine tool bottom mounting shell is provided with a clamping control mechanism, and the inner surface of the material buffer box is provided with an automatic unloading mechanism, which simultaneously drives the cutting cutter head and the bottom supporting plate to move away from or close to a cutting workpiece in the middle, adjusts the angle of each rotation of the groove wheel, so that the angle of each rotation is adjustable and stable, thereby realizing continuous cutting of prisms with different numbers of faces, and realizing synchronous loading and unloading while clamping the control mechanism.

Description

Technical Field

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

[0002] Cutting machine tools are core equipment in the manufacturing industry, used to efficiently and accurately cut a variety of metal and non-metal materials. They have powerful cutting, drilling, grinding and other functions, and can meet the high-precision manufacturing needs of complex parts.

[0003] When cutting a workpiece, a machine tool is usually used for cutting.

[0004] The existing patent (publication number: CN115816190A) discloses a CNC machine tool for finishing aluminum cylinders of shock absorbers, which involves the field of aluminum cylinder cutting technology, including a base, a feeding assembly, a supporting assembly, a positioning assembly, a grinding assembly, a liquid spraying assembly, a cleaning assembly, and a hole opening assembly. In the above-mentioned equipment, most cutting machine tools use a three-jaw chuck to clamp the cutting workpiece. In the process of cutting the workpiece, when cutting a cylindrical workpiece, since the workpiece may be a prism with different numbers of faces, the angles between different faces are different. In the process of cutting different faces, the workpiece needs to be flipped. When cutting in batches, the angle of each rotation needs to be standardized. The existing cutting machine tools are not convenient for fixing the angle of each rotation, and are difficult to use. Summary of the invention

[0005] The purpose of the present invention is to provide a precision machining machine tool and a method for using the same, so as to solve the problem in the above background technology that the existing cutting machine tools are not convenient to fix the rotation angle each time and are difficult to use. In order to achieve the above purpose, the present invention provides the following technical solutions: A precision machining machine tool and a method for using the same, comprising a machine tool base, the top surface of the machine tool base is fixedly connected to a machine tool bottom mounting shell, the top surface of the machine tool bottom mounting shell is fixedly connected to a material buffer box, the outer surface of the machine tool base is fixedly connected to an outer support frame, the top surface of the outer support frame is provided with a cutter head driving mechanism, the top surface of the machine tool bottom mounting shell is provided with a rhythm control mechanism, the top surface of the machine tool bottom mounting shell is provided with a clamping control mechanism, and the inner surface of the material buffer box is provided with an automatic unloading mechanism.

[0006] Preferably, a passing groove is provided on the outer surface of the material buffer box.

[0007] Preferably, the cutter head driving mechanism includes a path limiting shell, the path limiting shell is fixedly connected to the top surface of the outer support frame, the top surface of the material buffer box is fixedly connected to a vertical limiting rod, the bottom surface of the vertical limiting rod is hingedly connected to a dumping control rod, the bottom surface of the dumping control rod is fixedly connected to a control connecting rod, the inner surface of the path limiting shell is fixedly connected to a driving cylinder, the output end of the driving cylinder is fixedly connected to an active moving block, the outer surface of the active moving block is hingedly connected to a driven connecting rod, the other end of the driven connecting rod is hingedly connected to the bottom moving block, and the other end of the driven connecting rod is hingedly connected to A top moving block is connected, the outer surface of the bottom moving block is rotatably connected to the bottom rotating frame, the top surface of the bottom rotating frame is fixedly connected to the supporting plate, the outer surface of the top moving block is fixedly connected to the top driven frame, the outer surface of the top driven frame is slidably connected to the cutter head mounting shell, the outer surface of the cutter head mounting shell is provided with a delay control groove, the bottom surface of the cutter head mounting shell is fixedly connected to the working cutter head, the outer surface of the cutter head mounting shell is fixedly connected to the shell clamping claw, the outer surface of the active moving block is fixedly connected to the rack driven rod, and the outer surface of the rack driven rod is fixedly connected to the rotation control rack.

[0008] Preferably, the active moving block is slidably connected to the bottom moving block and the top moving block on the inner surface of the path limiting shell, and the moving paths of the active moving block, the bottom moving block and the top moving block are perpendicular to each other, the number of the driven connecting rods is two, and the two driven connecting rods are hinged to the bottom moving block and the top moving block respectively, the vertical limiting rod passes through the bottom rotating frame and the top driven frame, the top driven frame passes through the inner surface of the delay control groove and is slidably connected to its inner wall, and the shell clamping claw is slidably connected to the outer surface of the material buffer box and fits tightly.

[0009] Preferably, the rhythm control mechanism includes a dial mounting base, the dial mounting base is fixedly connected to the top surface of the machine tool bottom mounting shell, the top surface of the machine tool bottom mounting shell is fixedly connected to the groove wheel mounting base, one end of the dial mounting base is rotatably connected to the rotation control wheel, the inner surface of the dial mounting base is rotatably connected to the one-way rotating shaft, the outer surface of the one-way rotating shaft is rotatably connected to the one-way ratchet, the other end of the one-way rotating shaft is fixedly connected to an active dial, the outer surface of the active dial is fixedly connected to a toggle block shell, the inner surface of the toggle block shell is slidably connected to a toggle adjustment block, the inner surface of the groove wheel mounting base is rotatably connected to a driven groove wheel, the outer surface of the driven groove wheel is provided with a groove wheel groove, one end of the driven groove wheel is fixedly connected to a fixed extrusion plate, the inner surface of the groove wheel mounting base is slidably connected to a vertical moving block, and one end of the vertical moving block is fixedly connected to a groove wheel clamping block.

[0010] Preferably, the rotation control wheel is meshed with the rotation control rack, a pawl groove is provided on the inner surface of the rotation control wheel, and the pawl groove is meshed with the one-way pawl, the number of the shaft toggle block shells is twelve, and the twelve toggle block shells are distributed in a ring around the center of the active dial, the number of the groove wheel grooves is twelve, and the twelve groove wheel grooves are distributed in a ring around the center of the driven groove wheel, the toggle adjustment block is meshed with the groove wheel groove, and the groove wheel engaging block is meshed with the outer surface of the driven groove wheel.

[0011] Preferably, the clamping control mechanism includes a clamping cylinder, the top surface of the bottom mounting shell of the machine tool is fixedly connected with the clamping cylinder, the output end of the clamping cylinder is fixedly connected with a clamping sliding seat, the outer surface of the clamping sliding seat is rotatably connected with a movable extrusion plate, the bottom surface of the clamping sliding seat is fixedly connected with a rack connecting seat, the bottom surface of the rack connecting seat is fixedly connected with a clamping linkage rod, the inner surface of the bottom mounting shell of the machine tool is fixedly connected with a gear box shell, the outer surface of the clamping linkage rod is meshed with a flip input gear, the other end of the flip input gear is fixedly connected with a flip synchronization gear, The outer surface of the rotating synchronous gear is meshed with a flip reverse gear, and the other end of the flip reverse gear is meshed with a flip output rack. The other side surface of the clamping linkage rod is meshed with a feeding input gear, and one end of the feeding input gear is fixedly connected to a feeding synchronous gear A. The outer surface of the feeding synchronous gear A is meshed with a feeding acceleration gear A, and one end of the feeding acceleration gear A is fixedly connected to a feeding synchronous gear B. The outer surface of the feeding synchronous gear B is meshed with a feeding acceleration gear B, and one end of the feeding acceleration gear B is fixedly connected to a feeding output gear, and the outer surface of the feeding output gear is meshed with a feeding control rack.

[0012] Preferably, a rack is provided on the outer surface of the clamping linkage rod, the flip output rack passes through the gear box housing, the feeding control rack passes through the gear box housing, the flip input gear, flip synchronous gear, flip reverse gear, feeding input gear, feeding synchronous gear A, feeding acceleration gear A, feeding synchronous gear B, feeding acceleration gear B, and feeding output gear are all rotatably connected to the inner surface of the gear box housing, the movable extrusion plate is parallel to the fixed extrusion plate, the flip output rack is sleeved on the outer surface of the control connecting rod, and one end of the feeding control rack is arc-shaped.

[0013] Preferably, the automatic unloading mechanism includes a feeding clamp, the feeding clamp is slidably connected to the inner surface of the material buffer box, one end of the feeding clamp is fixedly connected to a clamp connecting rod, one end of the clamp connecting rod is fixedly connected to a sliding base, the bottom surface of the sliding base is fixedly connected to a base connecting column, the outer surface of the outer support frame is fixedly connected to a rotating shaft support frame, the inner surface of the rotating shaft support frame is rotatably connected to a linkage rotating shaft, both ends of the linkage rotating shaft are rotatably connected to an active hinged rod, the outer surface of the active hinged rod is rotatably connected to an active spring mounting seat, one end of the active hinged rod is hingedly connected to a driven hinged rod, the outer surface of the driven hinged rod is rotatably connected to a driven spring mounting seat, and the outer surface of the driven spring mounting seat is fixedly connected to a maintaining spring.

[0014] Preferably, the number of the feeding clamps is two, and the two feeding clamps are symmetrically distributed with the central axis of the material buffer box as the symmetry axis, the base connecting column is slidingly connected to the outer surface of the feeding control rack, and the two ends of the maintaining spring are respectively fixedly connected to the active spring mounting seat and the driven spring mounting seat.

[0015] A method for using a precision machining machine tool comprises the following steps:

[0016] S1. When in use, first place the workpiece to be cut between the movable extrusion plate and the fixed extrusion plate, start the clamping cylinder to drive the movable extrusion plate to achieve clamping, place the workpiece to be cut in the material buffer box, pull the feeding clamp backward so that the bottom workpiece falls on the feeding clamp, and the top material continues to be cached in the material buffer box, but will be blocked by the feeding clamp and cannot fall;

[0017] S2. According to the angles between different surfaces of the cutting material, the rhythm control mechanism is adjusted to the required rotation angle each time. The active dial is engaged with the groove of the driven groove wheel through multiple externally connected toggle adjustment blocks. Only when the toggle adjustment block contacts the groove of the groove wheel can the driven groove wheel be driven to rotate. According to the number of extended toggle adjustment blocks, the active dial drives the driven groove wheel to rotate at different angles each time it rotates. Multiple toggle adjustment blocks have higher control accuracy.

[0018] S3. After the clamping and angle adjustment are completed, the driving cylinder is started to drive the active moving block to move horizontally, and the active moving block drives the driven connecting rod to control the bottom moving block and the top moving block to move away from or close to each other, and drives the working cutter head and the supporting pallet to move away from or close to each other. The lifting and lowering of the working cutter head has a certain delay compared with the supporting pallet to provide cutting time. The working cutter head cuts when it is close and supports the workpiece through the supporting pallet at the bottom to prevent the workpiece from bending. During the movement of the active moving block, the active dial on the rhythm control mechanism is driven to rotate through the rack, thereby controlling the rotation of the driven groove wheel to drive the clamped workpiece to rotate. A one-way ratchet is installed at the rotation control rack. Only when the working cutter head is retracted, the clamping part rotates a certain angle, and remains stationary when pressed down until the cutting of each surface is completed continuously;

[0019] S4. When the cutting of each surface is completed, the clamping cylinder is released, and the movable extrusion plate no longer clamps the workpiece and causes it to fall. When the clamping cylinder is released, the clamping linkage rod is driven by the rack connecting seat at the bottom to control the gear box housing to work. One side extends outward when the clamping cylinder is released to push the tipping control rod to rotate and drive the support plate to tilt, so that the workpiece falls into the bottom support plate and then rolls out. The other side pulls the feeding claw on the automatic unloading mechanism to push the uncut workpiece between the movable extrusion plate and the fixed extrusion plate. The clamping cylinder is retracted again, and the support plate no longer tilts, and continues to rise to provide support. The movable extrusion plate and the fixed extrusion plate clamp the new workpiece. After the working cutter head is pressed down again, the spring of the automatic unloading mechanism is triggered to store force to maintain the recovery part, so that the feeding claw is retracted and clamps the next workpiece to be cut.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, by setting the cutter head driving mechanism, during use, a single cylinder is used to simultaneously drive the cutting cutter head and the bottom supporting plate to move away from or close to the cutting workpiece in the middle. When approaching, the cutter head cuts and the bottom supporting plate plays a supporting role to prevent the workpiece from bending, and drives the subsequent rhythm control mechanism to rotate the workpiece. When the cutting cutter head is recovered, the workpiece is rotated, and each surface of the workpiece can be continuously cut in sequence.

[0022] In the present invention, by setting a rhythm control mechanism, the groove wheel structure is used to realize intermittent rotation control of the workpiece, and the workpiece is rotated each time the cutting head is recovered, and the angle of each rotation of the groove wheel can be adjusted by adjusting the interval and number of the dial parts on the active dial, so that the angle of each rotation is adjustable and stable, and continuous cutting of prisms with different numbers of faces is realized;

[0023] In the present invention, through the setting of the clamping control mechanism and the automatic unloading mechanism, during use, by controlling the clamping control mechanism, the support tray part on the tool head driving mechanism and the automatic unloading mechanism are jointly controlled to achieve synchronous loading and unloading, which is convenient for continuous cutting of multiple workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic side view of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the various components of the cutter head driving mechanism of the present invention cooperating with each other;

[0026] Figure 3 It is a schematic diagram of the structure in which the bottom moving block, the bottom rotating frame, the top moving block and the top driven frame cooperate with each other in the present invention;

[0027] Figure 4 It is a schematic diagram of the coordination structure of the rhythm control mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 It is a schematic diagram of the structure of the toggle block housing and the toggle adjustment block cooperating with each other in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure in which the clamping cylinder, the vertical moving block, the movable extrusion plate and the fixed extrusion plate cooperate with each other in the present invention;

[0031] Figure 8 It is a schematic diagram of the mutual coordination structure of the internal structure of the gearbox housing of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the feeding input gear, the feeding synchronous gear A, the feeding acceleration gear A, the feeding synchronous gear, and the feeding acceleration gear B cooperating with each other in the present invention;

[0033] Fig.10 This is a diagram of the internal gear train of the gearbox housing of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the tipping control lever and the flip output rack cooperating with each other in the present invention;

[0035] Fig.12 This is a schematic diagram of the coordination structure of the internal structures of the material buffer box of the present invention;

[0036] Fig.13 This is a schematic diagram of the structure of the mutual cooperation of the components of the automatic unloading mechanism of the present invention;

[0037] Fig.14 For the present invention Fig.12 Enlarged view of point B in the middle.

[0038] In the figure: 1, machine tool base; 2, machine tool bottom mounting shell; 3, material buffer box; 31, through slot; 4, outer support frame; 5, tool head drive mechanism; 51, path limiting shell; 52, vertical limit rod; 521, dumping control rod; 522, control connecting rod; 53, driving cylinder; 54, active moving block; 55, driven connecting rod; 56, bottom moving block; 561, top moving block; 57, bottom rotating frame; 58, support plate; 59, top driven frame; 510 , cutter head mounting housing; 5101, delay control slot; 511, working cutter head; 512, housing clamping claw; 513, rack driven rod; 514, rotation control rack; 6, rhythm control mechanism; 61, dial mounting base; 611, groove wheel mounting base; 62, rotation control wheel; 63, one-way shaft; 631, one-way pawl; 64, active dial; 641, toggle block housing; 6411, toggle adjustment block; 65, driven groove wheel; 651, groove wheel groove; 66, fixed Extrusion plate; 67, vertical moving block; 671, groove wheel clamping block; 7, clamping control mechanism; 71, clamping cylinder; 72, clamping sliding seat; 73, movable extrusion plate; 74, rack connecting seat; 741, clamping linkage rod; 742, flip input gear; 7421, flip synchronous gear; 7422, flip reverse gear; 7423, flip output rack; 743, feeding input gear; 7431, feeding synchronous gear A; 7432, feeding acceleration gear A; 7433 , feeding synchronization gear B; 7434, feeding acceleration gear B; 7435, feeding output gear; 7436, feeding control rack; 75, gear box housing; 8, automatic unloading mechanism; 81, feeding clamp; 82, clamp connecting rod; 83, sliding base; 84, base connecting column; 85, shaft support frame; 86, linkage shaft; 87, active hinged rod; 871, active spring mounting seat; 88, driven hinged rod; 881, driven spring mounting seat; 89, maintaining spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 14The present invention provides a technical solution: a precision machining machine tool and a method for using the same, comprising a machine tool base 1, the top surface of the machine tool base 1 is fixedly connected to a machine tool bottom mounting shell 2, the top surface of the machine tool bottom mounting shell 2 is fixedly connected to a material buffer box 3, the outer surface of the machine tool base 1 is fixedly connected to an outer support frame 4, the top surface of the outer support frame 4 is provided with a cutter head driving mechanism 5, the top surface of the machine tool bottom mounting shell 2 is provided with a rhythm control mechanism 6, the top surface of the machine tool bottom mounting shell 2 is provided with a clamping control mechanism 7, the inner surface of the material buffer box 3 is provided with an automatic unloading mechanism 8, the machine tool The base 1 is the base part of the entire device, which is used to carry the top component, provide an installation part and reduce shock, and allow the sliding base 83 to slide on its surface. The interior of the outer shell 2 installed at the bottom of the machine tool is used to install and protect some components. There is enough space for activities inside. The external support frame 4 supports the tool head drive mechanism 5 on the outside. Through the installation part, the rhythm control mechanism 6 is driven by the tool head drive mechanism 5, and drives the clamped workpiece to rotate when the tool head drive mechanism 5 descends to work. The clamping control mechanism 7 controls the clamping and release of the cut workpiece. When it is released, it drives the automatic unloading mechanism 8 to work, so that the workpiece can be automatically replaced.

[0041] A through slot 31 is provided on the outer surface of the material buffer box 3 , and the through slot 31 is used for the feeding clamp 81 on the automatic unloading mechanism 8 to freely pass through the front, back and inside of the material buffer box 3 .

[0042] The cutter head driving mechanism 5 includes a path limiting shell 51, which is fixedly connected to the top surface of the outer support frame 4, a vertical limit rod 52 is fixedly connected to the top surface of the material buffer box 3, a dumping control rod 521 is hingedly connected to the bottom surface of the vertical limit rod 52, a control connecting rod 522 is fixedly connected to the bottom surface of the dumping control rod 521, a driving cylinder 53 is fixedly connected to the inner surface of the path limiting shell 51, an active moving block 54 is fixedly connected to the output end of the driving cylinder 53, a driven connecting rod 55 is hingedly connected to the outer surface of the active moving block 54, the other end of the driven connecting rod 55 is hingedly connected to the bottom moving block 56, and the other end of the driven connecting rod 55 is hingedly connected to the top moving block 561 The outer surface of the bottom moving block 56 is rotatably connected to the bottom rotating frame 57, the top surface of the bottom rotating frame 57 is fixedly connected to the supporting plate 58, the outer surface of the top moving block 561 is fixedly connected to the top driven frame 59, the outer surface of the top driven frame 59 is slidably connected to the cutter head mounting shell 510, the outer surface of the cutter head mounting shell 510 is provided with a delay control groove 5101, the bottom surface of the cutter head mounting shell 510 is fixedly connected to the working cutter head 511, the outer surface of the cutter head mounting shell 510 is fixedly connected to the shell clamping claw 512, the outer surface of the active moving block 54 is fixedly connected to the rack driven rod 513, the outer surface of the rack driven rod 513 is fixedly connected to the rotation control rack 514, through the cutter The head driving mechanism 5 is set up. During use, the path limiting shell 51 is T-shaped and has a through path on the surface for limiting the moving path of the moving block. In the initial state, the driving cylinder 53 drives the active moving block 54 to extend, and the bottom moving block 56 and the top moving block 561 are separated from each other. The driving cylinder 53 is started to pull the active moving block 54 outward. The active moving block 54 is pulled outward by two driven connecting rods 55 installed on the surface to move on the path limiting shell 51, so that the bottom moving block 56 and the top moving block 561 are close to each other. The bottom moving block 56 and the top moving block 561 are respectively connected to the bottom rotating frame 57 and the top driven frame 59. The bottom rotating frame 57 and the bottom moving block 56 The top driven frame 59 is connected with the cutter head mounting shell 510 in a sliding manner. The cutter head mounting shell 510 is clamped on the material buffer box 3 by the shell clamping claw 512 and is not easy to move. It can only move when the top driven frame 59 is actively moved. Moreover, through the setting of the delay control groove 5101, the top driven frame 59 must slide a certain distance in the delay control groove 5101 before it can contact the inner wall of the delay control groove 5101, so that the top driven frame 59 drives the movement of the cutter head mounting shell 510 with a delay, which provides time for the working cutter head 511 to cut.The bottom moving block 56 drives the support plate 58 to rise and fall through the bottom rotating frame 57, which is opposite to the lifting and falling of the working cutter head 511 driven by the top moving block 561, so that the two parts approach and move away from each other to clamp the workpiece. When approaching, the working cutter head 511 contacts the workpiece and the bottom support plate 58 plays a supporting role at the bottom of the workpiece to prevent bending due to force. After one cutting, they move away from each other so that the workpiece can rotate. During the movement of the active moving block 54, the rack driven rod 513 and the rotation control rack 514 are driven to move. The rotation control rack 514 is engaged with the rotation control wheel 62 on the rhythm control mechanism 6 to realize the conversion of direct motion into rotation, and the control of the rhythm control mechanism 6 by the cutter head driving mechanism 5, so that when the cutter head driving mechanism 5 is lifted, the rhythm control mechanism 6 drives the clamped workpiece to rotate a certain angle. When the cutter head driving mechanism 5 is pressed down again, different surfaces of the clamped workpiece can be cut.

[0043] The active moving block 54 is slidably connected to the bottom moving block 56 and the top moving block 561 on the inner surface of the path limiting shell 51, and the moving paths of the active moving block 54, the bottom moving block 56 and the top moving block 561 are perpendicular to each other. There are two driven connecting rods 55, and the two driven connecting rods 55 are hinged to the bottom moving block 56 and the top moving block 561 respectively. The vertical limiting rod 52 passes through the bottom rotating frame 57 and the top driven frame 59. The top driven frame 59 passes through the inner surface of the delay control groove 5101 and is slidably connected to its inner wall. The shell clamping claw 512 is slidably connected to the outer surface of the material buffer box 3 and fits tightly. The active moving block 54 drives the driven connecting rod 55 to control the bottom moving block 56 and the top moving block 561 to move away from or close to each other.

[0044] The rhythm control mechanism 6 includes a dial mounting base 61, which is fixedly connected to the top surface of the machine tool bottom mounting shell 2, and the top surface of the machine tool bottom mounting shell 2 is fixedly connected to a groove wheel mounting base 611, one end of the dial mounting base 61 is rotatably connected to a rotating control wheel 62, the inner surface of the dial mounting base 61 is rotatably connected to a one-way shaft 63, the outer surface of the one-way shaft 63 is rotatably connected to a one-way pawl 631, the other end of the one-way shaft 63 is fixedly connected to an active dial 64, the outer surface of the active dial 64 is fixedly connected to a toggle block shell 641, the inner surface of the toggle block shell 641 is slidably connected to a toggle adjustment block 6411, and the inner surface of the groove wheel mounting base 611 is rotatably connected to a driven groove wheel 65. A sheave groove 651 is provided on the outer surface of the driven sheave 65, one end of the driven sheave 65 is fixedly connected to a fixed extrusion plate 66, the inner surface of the sheave mounting base 611 is slidably connected to a vertical moving block 67, one end of the vertical moving block 67 is fixedly connected to a sheave clamping block 671, through the setting of the rhythm control mechanism 6, during use, the dial mounting base 61 and the sheave mounting base 611 are respectively installed with the active dial 64 and the driven sheave 65 part, the active dial 64 and the driven sheave 65 part are meshed with each other, and the active dial 64 controls the rotation of the driven sheave 65, the active dial 64 is fixedly connected to the one-way rotating shaft 63, the one-way rotating shaft 63 is controlled to rotate by the one-way ratchet 631 and the external rotation control wheel 62, and the one-way ratchet 631 can only When the rotating control wheel 62 rotates in one direction, if the rotation direction is the same as the rotation direction of the one-way pawl 631, the one-way pawl 631 will rotate and be pressed inside, so that the groove on the rotating control wheel 62 will directly slide through the pawl groove on the one-way pawl 631 and cannot drive the one-way rotating shaft 63 to rotate. When the rotating control wheel 62 and the one-way pawl 631 rotate in opposite directions, the one-way pawl 631 cannot be rotated and pressed inside, and the rotating control wheel 62 will drive the rotating control wheel 62 to rotate through the internal pawl groove to realize the one-way rotation of the active dial 64. Since the rotating control rack 514 will move back and forth, the rhythm control mechanism 6 will not reverse, causing the workpiece to repeatedly cut the same surface. The active dial 64 is connected to the slave through multiple toggle adjustment blocks 6411 connected externally. The groove 651 on the movable groove wheel 65 is meshed, and the toggle adjustment block 6411 is received inside the toggle block housing 641, and is fixed in the current position by sliding out and rotating in the groove on the toggle block housing 641. Only when the toggle adjustment block 6411 contacts the groove 651 can the driven groove wheel 65 be driven to rotate. According to the number of extended toggle adjustment blocks 6411, the active dial 64 drives the driven groove wheel 65 to rotate at different angles each time it rotates one circle. Multiple toggle adjustment blocks 6411 have higher control accuracy, so that the clamped workpiece can be rotated to different angles after each cutting as needed. The position of the fixed extrusion plate 66 is fixed but can be rotated, and the movable extrusion plate 73 can be rotated and moved, and is clamped at both ends of the workpiece by two pairs of extrusion plates.The fixed extrusion plate 66 is rotated by being fixedly connected to the driven groove wheel 65. When the support plate 58 is lifted, the vertical moving block 67 and the groove wheel engaging block 671 will be carried with it, and the driven groove wheel 65 will be clamped to prevent it from rotating, so that the workpiece will not rotate during the descending process of the working cutter head 511.

[0045] The rotation control wheel 62 is meshed with the rotation control rack 514, and a ratchet groove is provided on the inner surface of the rotation control wheel 62, and the ratchet groove is meshed with the one-way ratchet 631. The number of the rotating shaft toggle block housings 641 is twelve, and the twelve toggle block housings 641 are distributed in a ring around the center of the active dial 64, the number of the groove wheel grooves 651 is twelve, and the twelve groove wheel grooves 651 are distributed in a ring around the center of the driven groove wheel 65, the toggle adjustment block 6411 is meshed with the groove wheel groove 651, and the groove wheel engaging block 6 71 meshes with the outer surface of the driven groove wheel 65, and the rotation control rack 514 meshes with the rotation control wheel 62 on the rhythm control mechanism 6, so as to realize the conversion of linear motion into rotation, and the control of the rhythm control mechanism 6 by the cutter head driving mechanism 5, and the active dial 64 is driven to realize unidirectional rotation by controlling the one-way ratchet 631 through the ratchet groove. The multiple rotating shaft toggle block housings 641 and the groove wheel grooves 651 distributed in an annular manner have higher control accuracy, so that the clamped workpiece can be rotated to different angles after each cutting as needed.

[0046] The clamping control mechanism 7 includes a clamping cylinder 71, the top surface of the machine bottom mounting housing 2 is fixedly connected with the clamping cylinder 71, the output end of the clamping cylinder 71 is fixedly connected with a clamping sliding seat 72, the outer surface of the clamping sliding seat 72 is rotatably connected with a movable extrusion plate 73, the bottom surface of the clamping sliding seat 72 is fixedly connected with a rack connecting seat 74, the bottom surface of the rack connecting seat 74 is fixedly connected with a clamping linkage rod 741, the inner surface of the machine bottom mounting housing 2 is fixedly connected with a gear box housing 75, the outer surface of the clamping linkage rod 741 is meshed with a flip input gear 742, the other end of the flip input gear 742 is fixedly connected with a flip synchronous gear 7421, and the outer surface of the flip synchronous gear 7421 is meshed with a flip reverse gear Gear 7422, the other end of the flip reverse gear 7422 is meshed with a flip output rack 7423, the other side surface of the clamping linkage rod 741 is meshed with a feeding input gear 743, one end of the feeding input gear 743 is fixedly connected to a feeding synchronization gear A7431, the outer surface of the feeding synchronization gear A7431 is meshed with a feeding acceleration gear A7432, one end of the feeding acceleration gear A7432 is fixedly connected to a feeding synchronization gear B7433, the outer surface of the feeding synchronization gear B7433 is meshed with a feeding acceleration gear B7434, one end of the feeding acceleration gear B7434 is fixedly connected to a feeding output gear 7435, and the outer surface of the feeding output gear 7435 is meshed with a feeding control rack 7436. The setting of the holding control mechanism 7, during use, the clamping cylinder 71 can drive the clamping sliding seat 72 to realize lateral movement to control the movable extrusion plate 73 and the fixed extrusion plate 66 to clamp the workpiece at both ends. When the clamping cylinder 71 retracts the movable extrusion plate 73 and the fixed extrusion plate 66, the distance between the movable extrusion plate 73 and the fixed extrusion plate 66 becomes larger, the originally clamped workpiece falls, and the clamping sliding seat 72 pulls the rack connecting seat 74 to move, and the rack connecting seat 74 drives the gear in the gear box housing 75 to rotate through the rack groove provided on the clamping linkage rod 741. Finally, the two ends of the gear box housing 75 extend out the flip output rack 7423 and the feeding control rack 7436 respectively to control the support plate 58 on the tool head driving mechanism 5 and the automatic unloading mechanism 8 respectively. The support plate 58 part The gear 7421 is engaged with the reverse gear 7422 and rotates counterclockwise in the opposite direction, and finally drives the output rack 7423 to extend outward through the counterclockwise rotation of the reverse gear 7422, thereby pushing the tilting control rod 521 at the bottom of the vertical limit rod 52 to rotate through the tilting output rack 7423, so that the bottom rotating frame 57 follows the rotation of the tilting control rod 521 to drive the support plate 58 to tilt, so that the workpiece will roll out after falling onto the support plate 58.The automatic unloading mechanism 8 needs to feed when the clamping is released, that is, it needs to be retracted when the rack connecting seat 74 is away, and the feeding claw 81 on the automatic unloading mechanism 8 needs a longer moving distance, then the gear control needs to change the direction and the transmission ratio at the same time. If the clamping linkage rod 741 moves outward at this time, it first drives the feeding input gear 743 to rotate counterclockwise, and the feeding input gear 743 and the feeding synchronous gear A7431 are coaxial and have the same direction of rotation. The feeding synchronous gear A7431 is engaged with the feeding acceleration gear A7432 with the smaller number of teeth to accelerate the feeding acceleration gear A7432 and rotate clockwise in the opposite direction, and the feeding The material acceleration gear A7432 and the feeding synchronization gear B7433 accelerate coaxially and have the same direction. The feeding synchronization gear B7433 also meshes with the feeding acceleration gear B7434 to accelerate and rotate counterclockwise in the opposite direction, and finally outputs to the coaxial feeding output gear 7435 to drive the feeding control rack 7436 to move inside the gear box. After increasing the transmission ratio twice, the feeding control rack 7436 can move a longer path to control the automatic unloading mechanism 8, achieving the effect of using the clamping control mechanism 7 to simultaneously control the support plate 58 to output the workpiece and the automatic unloading mechanism 8 to input the workpiece.

[0047] A rack is provided on the outer surface of the clamping linkage rod 741, the flip output rack 7423 penetrates the gear box housing 75, the feeding control rack 7436 penetrates the gear box housing 75, the flip input gear 742, the flip synchronization gear 7421, the flip reverse gear 7422, the feeding input gear 743, the feeding synchronization gear A7431, the feeding acceleration gear A7432, the feeding synchronization gear B7433, the feeding acceleration gear B7434, and the feeding output gear 7435 are all rotatably connected to the inner surface of the gear box housing 75, the movable extrusion plate 73 is parallel to the fixed extrusion plate 66, and the flip output rack 7423 is sleeved on the control connecting rod The outer surface of 522, one end of the feeding control rack 7436 is arc-shaped, and the gears on both sides are controlled by the clamping linkage rod 741 to realize the control of different mechanisms on both sides by using the flip output rack 7423 and the feeding control rack 7436. Each gear can be rotated when installed inside the gear box, and is installed at different positions on the ground through different axes, so that the gears that need to be meshed are in contact, and the gears that do not need to be meshed are staggered in height to prevent influence. The arc-shaped feeding control rack 7436 only pulls the automatic unloading mechanism 8 when it is folded, and does not work when it returns. The flip output rack 7423 drives the support plate 58 to tilt and reset when it is folded when it is extended.

[0048] The automatic unloading mechanism 8 includes a feeding clamp 81, which is slidably connected to the inner surface of the material buffer box 3, one end of the feeding clamp 81 is fixedly connected to a clamp connecting rod 82, one end of the clamp connecting rod 82 is fixedly connected to a sliding base 83, the bottom surface of the sliding base 83 is fixedly connected to a base connecting column 84, the outer surface of the outer support frame 4 is fixedly connected to a rotating shaft support frame 85, the inner surface of the rotating shaft support frame 85 is rotatably connected to a linkage rotating shaft 86, both ends of the linkage rotating shaft 86 are rotatably connected to active hinged rods 87, the outer surface of the active hinged rod 87 is rotatably connected to an active spring mounting seat 871, one end of the active hinged rod 87 is hingedly connected to a driven hinged rod 88, and the driven hinge The outer surface of the connecting rod 88 is rotatably connected to a driven spring mounting seat 881, and the outer surface of the driven spring mounting seat 881 is fixedly connected to a maintaining spring 89. Through the setting of the automatic unloading mechanism 8, during use, the workpieces to be cut are cached in the material buffer box 3 and stacked on each other in the vertical direction. The material buffer box 3 is provided with a feeding clamp 81 at the bottom to pick up the workpiece at the bottom, and the feeding clamp 81 is fixedly connected to the sliding base 83 through the clamp connecting rod 82, and can freely pass through the front, back and inside of the material buffer box 3 by sliding. The bottom of the sliding base 83 is provided with a base connecting column 84 in contact with the feeding control rack 7436. When the movable extrusion plate 73 is released, the feeding control rack 743 6 pulls the sliding base 83 forward, pushes the workpiece on the feeding clamp 81 to between the movable extrusion plate 73 and the fixed extrusion plate 66, and the clamping cylinder 71 controls the movable extrusion plate 73 to clamp the workpiece again, and in the process of the feeding clamp 81 moving, the active hinge rod 87 and the driven hinge rod 88 will change from the original folded state to the unfolded state, one end of the active hinge rod 87 is hinged to the linkage shaft 86, and one end of the driven hinge rod 88 is hinged to the clamp connecting rod 82, and the active hinge rod 87 and the driven hinge rod 88 are hinged to each other and connected by a maintaining spring 89. When the active hinge rod 87 and the driven hinge rod 88 are unfolded and collinear, the maintaining spring 89 pulls the constraints at both ends to the hinge angle of zero, and cannot be pulled The active hinged rod 87 and the driven hinged rod 88 are reset to maintain the current state until the cutter head driving mechanism 5 drives the shell clamping claw 512 to descend and push the driven hinged rod 88 downward. At this time, the active hinged rod 87 and the driven hinged rod 88 are bent and no longer collinear. The maintaining spring 89 will quickly pull the active hinged rod 87 and the driven hinged rod 88 to quickly retract them. Due to the high speed, the feeding claw 81 will move from the through slot 31 to a certain distance behind the material buffer box 3, so that the material on the top of the material buffer box 3 falls onto the feeding claw 81 and waits for the next feeding, thereby realizing the effect of the clamping control mechanism 7 controlling the input of the workpiece and the cutter head driving mechanism 5 controlling the recovery, so that the input of the workpiece can be carried out continuously.

[0049] There are two feeding jaws 81, and the two feeding jaws 81 are symmetrically distributed with the central axis of the material buffer box 3 as the symmetry axis. The base connecting column 84 is slidingly connected to the outer surface of the feeding control rack 7436, and the two ends of the maintaining spring 89 are respectively fixedly connected to the active spring mounting seat 871 and the driven spring mounting seat 881. The symmetrical feeding jaws 81 increase the support range for the workpiece. The feeding control rack 7436 controls the input workpiece through the base connecting column 84. The active spring mounting seat 871 and the driven spring mounting seat 881 are used to install the maintaining spring 89 and can rotate themselves to adapt to the position of the maintaining spring 89 when the active hinge rod 87 and the driven hinge rod 88 are at different angles.

[0050] In this embodiment, Figure 1 As shown, the machine tool base 1 is the base part of the entire device, which is used to carry the top components, provide the installation part and reduce shock, and at the same time, the sliding base 83 slides on its surface. The interior of the machine tool bottom installation shell 2 is used to install and protect some components, and there is enough space inside. The outer support frame 4 supports the tool head drive mechanism 5 on the outside;

[0051] In this embodiment, Figure 2 As shown, the active moving block 54 drives the driven connecting rod 55 to control the movement of the bottom moving block 56 and the top moving block 561, so as to realize the mutual distance or approach between the working cutter head 511 and the supporting support plate 58;

[0052] In this embodiment, Figure 3 As shown, the bottom rotating frame 57 is rotatably connected to the bottom moving block 56, but at this time the bottom rotating frame 57 is penetrated by the vertical limit rod 52 that is fixedly connected and cannot rotate, and can only move up and down with the bottom moving block 56. The top driven frame 59 must slide a certain distance in the delay control groove 5101 before it can contact the inner wall of the delay control groove 5101.

[0053] In this embodiment, Figure 4 As shown, during the movement of the active moving block 54, the rack driven rod 513 and the rotation control rack 514 are driven to move, so that the cutter head driving mechanism 5 controls the rhythm control mechanism 6, and the active dial 64 and the driven groove wheel 65 are partially engaged with each other, and the active dial 64 controls the rotation of the driven groove wheel 65;

[0054] In this embodiment, Figure 5 As shown, the one-way rotating shaft 63 is controlled to rotate by the one-way pawl 631 and the external rotating control wheel 62, and the one-way pawl 631 can only rotate in one direction. When the rotating control wheel 62 rotates, the one-way rotating shaft 63 can only rotate in one direction;

[0055] In this embodiment, Figure 6As shown, the toggle adjustment block 6411 is received in the toggle block housing 641, and is fixed in the current position by sliding out and rotating in the slot on the toggle block housing 641. Only when the toggle adjustment block 6411 contacts the slot 651 can the driven slot 65 be driven to rotate;

[0056] In this embodiment, Figure 7 As shown, the clamping cylinder 71 can drive the clamping sliding seat 72 to achieve lateral movement to control the movable extrusion plate 73 and the fixed extrusion plate 66 to clamp at both ends of the workpiece;

[0057] In this embodiment, Figure 8 As shown, the clamping sliding seat 72 pulls the rack connecting seat 74 to move, and the rack connecting seat 74 drives the gear in the gear box housing 75 to rotate through the rack groove provided on the clamping linkage rod 741. Finally, the two ends of the gear box housing 75 extend respectively with a flip output rack 7423 and a feeding control rack 7436 to control the support plate 58 on the cutter head driving mechanism 5 and the automatic unloading mechanism 8;

[0058] In this embodiment, Fig. 9 , Fig.10 As shown, the support plate 58 part needs to be moved away when the rack connection seat 74 moves away, so only the gear direction is changed, and the automatic unloading mechanism 8 needs to feed when the clamping is released, that is, it is retracted when the rack connection seat 74 moves away, and the feeding claw 81 on the automatic unloading mechanism 8 needs a longer moving distance, so the gear control needs to change the direction and the transmission ratio at the same time;

[0059] In this embodiment, Fig.11 As shown, the output rack 7423 is flipped to push the dumping control rod 521 at the bottom of the vertical limit rod 52 to rotate, so that the bottom rotating frame 57 rotates with the dumping control rod 521 to drive the support plate 58 to tilt, so that the workpiece falls on the support plate 58 and rolls out;

[0060] In this embodiment, Fig.12 As shown, the feeding clamp 81 is fixedly connected to the sliding base 83 through the clamp connecting rod 82, and can freely pass through the front, back and inside of the material buffer box 3 by sliding;

[0061] In this embodiment, Fig.13 , Fig.14 As shown, during the movement of the feeding clamp 81, the active hinged rod 87 and the driven hinged rod 88 will change from the original folded state to the unfolded state, and the active hinged rod 87 and the driven hinged rod 88 are hinged to each other and connected by a maintaining spring 89. When the active hinged rod 87 and the driven hinged rod 88 are unfolded and in the same line, the maintaining spring 89 pulls the constraints at both ends to hinge out an angle of zero, and cannot pull the active hinged rod 87 and the driven hinged rod 88 to reset and maintain the current state.

[0062] A method for using a precision machining machine tool comprises the following steps:

[0063] S1. When in use, first place the workpiece to be cut between the movable extrusion plate 73 and the fixed extrusion plate 66, start the clamping cylinder 71 to drive the movable extrusion plate 73 to achieve clamping, place the workpiece to be cut in the material buffer box 3, pull the feeding clamp 81 backward so that the bottom workpiece falls on the feeding clamp 81, and the top material continues to be cached in the material buffer box 3, but will be blocked by the feeding clamp 81 and cannot fall;

[0064] S2. According to the angle between different surfaces of the cutting material, the rhythm control mechanism 6 is adjusted to rotate at each time. The active dial 64 is engaged with the groove 651 on the driven groove wheel 65 through multiple externally connected toggle adjustment blocks 6411. Only when the toggle adjustment block 6411 contacts the groove 651 can the driven groove wheel 65 be driven to rotate. According to the number of extended toggle adjustment blocks 6411, the active dial 64 drives the driven groove wheel 65 to rotate at different angles each time it rotates. Multiple toggle adjustment blocks 6411 have higher control accuracy.

[0065] S3. After the clamping and angle adjustment are completed, the driving cylinder 53 is started to drive the active moving block 54 to move horizontally, and the active moving block 54 drives the driven connecting rod 55 to control the bottom moving block 56 and the top moving block 561 to move away from or approach each other, and drives the working cutter head 511 and the supporting pallet 58 to move away from or approach each other. The lifting and lowering of the working cutter head 511 has a certain delay compared with the supporting pallet 58 to provide cutting time. When the working cutter head 511 is close, it cuts and is supported by the supporting pallet 58 at the bottom of the workpiece to prevent the workpiece from bending. During the movement of the active moving block 54, the active dial 64 on the rhythm control mechanism 6 is driven to rotate through the rack, thereby controlling the rotation of the driven groove wheel 65 to drive the clamped workpiece to rotate. A one-way ratchet 631 is installed at the rotation control rack 514. Only when the working cutter head 511 is retracted, the clamping part rotates a certain angle, and remains stationary when pressed down until the cutting of each surface is completed continuously;

[0066] S4. When the cutting of each surface is completed, the clamping cylinder 71 is released, and the movable extrusion plate 73 no longer clamps the workpiece, causing it to fall. At the same time as the clamping cylinder 71 is released, the clamping linkage rod 741 is driven by the rack connecting seat 74 at the bottom to control the gear box housing 75 to work. At the same time as the clamping cylinder 71 is released, one side extends outward to push the tipping control rod 521 to rotate and drive the supporting pallet 58 to tilt, so that the workpiece falls into the bottom supporting pallet 58 and then rolls out. The other side pulls the feeding claw 81 on the automatic unloading mechanism 8 to push out the uncut workpiece. The clamping cylinder 71 is retracted again, and the supporting pallet 58 is no longer tilted. It continues to rise to provide a supporting effect. The clamping part clamps the new workpiece. After the working cutter head 511 is pressed down again, the spring storage force of the automatic unloading mechanism 8 is triggered to maintain the recovery part, so that the feeding claw 81 is retracted and clamps the next workpiece to be cut.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precision machining machine tool, comprising a machine tool base (1), characterized in that: The top surface of the machine tool base (1) is fixedly connected to a machine tool bottom mounting shell (2), the top surface of the machine tool bottom mounting shell (2) is fixedly connected to a material buffer box (3), the outer surface of the machine tool base (1) is fixedly connected to an outer support frame (4), the top surface of the outer support frame (4) is provided with a cutter head driving mechanism (5), the top surface of the machine tool bottom mounting shell (2) is provided with a rhythm control mechanism (6), the top surface of the machine tool bottom mounting shell (2) is provided with a clamping control mechanism (7), and the inner surface of the material buffer box (3) is provided with an automatic unloading mechanism (8); The outer surface of the material buffer box (3) is provided with a through groove (31); The tool head driving mechanism (5) comprises a path limiting shell (51), wherein the path limiting shell (51) is fixedly connected to the top surface of the outer support frame (4), the top surface of the material buffer box (3) is fixedly connected to a vertical limit rod (52), the bottom surface of the vertical limit rod (52) is hingedly connected to a dumping control rod (521), the bottom surface of the dumping control rod (521) is fixedly connected to a control connecting rod (522), the inner surface of the path limiting shell (51) is fixedly connected to a driving cylinder (53), the output end of the driving cylinder (53) is fixedly connected to an active moving block (54), the outer surface of the active moving block (54) is hingedly connected to a driven connecting rod (55), the other end of the driven connecting rod (55) is hingedly connected to a bottom moving block (56), and the other end of the driven connecting rod (55) is hingedly connected to a top moving block (56). 61), the outer surface of the bottom moving block (56) is rotatably connected to the bottom rotating frame (57), the top surface of the bottom rotating frame (57) is fixedly connected to the supporting plate (58), the outer surface of the top moving block (561) is fixedly connected to the top driven frame (59), the outer surface of the top driven frame (59) is slidably connected to the cutter head mounting shell (510), the outer surface of the cutter head mounting shell (510) is provided with a delay control groove (5101), the bottom surface of the cutter head mounting shell (510) is fixedly connected to the working cutter head (511), the outer surface of the cutter head mounting shell (510) is fixedly connected to the shell clamping claw (512), the outer surface of the active moving block (54) is fixedly connected to the rack driven rod (513), and the outer surface of the rack driven rod (513) is fixedly connected to the rotation control rack (514); The rhythm control mechanism (6) comprises a dial mounting base (61), the dial mounting base (61) being fixedly connected to the top surface of a machine tool bottom mounting shell (2), the top surface of the machine tool bottom mounting shell (2) being fixedly connected to a groove wheel mounting base (611), one end of the dial mounting base (61) being rotatably connected to a rotating control wheel (62), the inner surface of the dial mounting base (61) being rotatably connected to a one-way rotating shaft (63), the outer surface of the one-way rotating shaft (63) being rotatably connected to a one-way ratchet (631), the other end of the one-way rotating shaft (63) being fixedly connected to an active dial (64), The outer surface of the active dial (64) is fixedly connected to a toggle block housing (641), the inner surface of the toggle block housing (641) is slidably connected to a toggle adjustment block (6411), the inner surface of the groove wheel mounting base (611) is rotatably connected to a driven groove wheel (65), the outer surface of the driven groove wheel (65) is provided with a groove wheel groove (651), one end of the driven groove wheel (65) is fixedly connected to a fixed extrusion plate (66), the inner surface of the groove wheel mounting base (611) is slidably connected to a vertical moving block (67), and one end of the vertical moving block (67) is fixedly connected to a groove wheel engaging block (671); The clamping control mechanism (7) comprises a clamping cylinder (71), the top surface of the machine tool bottom mounting housing (2) is fixedly connected to the clamping cylinder (71), the output end of the clamping cylinder (71) is fixedly connected to a clamping sliding seat (72), the outer surface of the clamping sliding seat (72) is rotatably connected to a movable extrusion plate (73), the bottom surface of the clamping sliding seat (72) is fixedly connected to a rack connecting seat (74), the bottom surface of the rack connecting seat (74) is fixedly connected to a clamping linkage rod (741), the inner surface of the machine tool bottom mounting housing (2) is fixedly connected to a gear box housing (75), the outer surface of the clamping linkage rod (741) is meshed with a flip input gear (742), the other end of the flip input gear (742) is fixedly connected to a flip synchronization gear (7421), the outer surface of the flip synchronization gear (7421) is meshed with a gear box housing (75), and the outer surface of the flip synchronization gear (7421) is meshed with a gear box housing (75). A flip reverse gear (7422) is meshed with the other end of the flip reverse gear (7422) and a flip output rack (7423) is meshed with the other side surface of the clamping linkage rod (741); a feeding input gear (743) is meshed with one end of the feeding input gear (743); a feeding synchronization gear A (7431) is fixedly connected to one end of the feeding input gear (743); a feeding acceleration gear A (7432) is meshed with the outer surface of the feeding synchronization gear A (7431); a feeding synchronization gear B (7433) is fixedly connected to one end of the feeding acceleration gear A (7432); a feeding synchronization gear B (7433) is meshed with the outer surface of the feeding synchronization gear B (7433); a feeding acceleration gear B (7434) is fixedly connected to one end of the feeding acceleration gear B (7434) and a feeding output gear (7435) is meshed with the outer surface of the feeding output gear (7435); The automatic unloading mechanism (8) comprises a feeding clamp (81), the feeding clamp (81) is slidably connected to the inner surface of the material buffer box (3), one end of the feeding clamp (81) is fixedly connected to a clamp connecting rod (82), one end of the clamp connecting rod (82) is fixedly connected to a sliding base (83), the bottom surface of the sliding base (83) is fixedly connected to a base connecting column (84), the outer surface of the outer support frame (4) is fixedly connected to a rotating shaft support frame (85), and the rotating shaft support frame (85) is fixedly connected to the outer surface of the outer support frame (4). ) is rotatably connected to a linkage shaft (86), both ends of the linkage shaft (86) are rotatably connected to active hinged rods (87), the outer surface of the active hinged rod (87) is rotatably connected to an active spring mounting seat (871), one end of the active hinged rod (87) is hingedly connected to a driven hinged rod (88), the outer surface of the driven hinged rod (88) is rotatably connected to a driven spring mounting seat (881), and the outer surface of the driven spring mounting seat (881) is fixedly connected to a maintaining spring (89).

2. A precision machining machine tool according to claim 1, characterized in that: The active moving block (54) is slidably connected to the bottom moving block (56) and the top moving block (561) on the inner surface of the path limiting shell (51), and the moving paths of the active moving block (54) and the bottom moving block (56) and the top moving block (561) are perpendicular to each other. The number of the driven connecting rods (55) is two, and the two driven connecting rods (55) are hinged to the bottom moving block (56) and the top moving block (561) respectively. The vertical limit rod (52) passes through the bottom rotating frame (57) and the top driven frame (59). The top driven frame (59) passes through the inner surface of the delay control groove (5101) and is slidably connected to its inner wall. The shell clamping claw (512) is slidably connected to the outer surface of the material buffer box (3) and fits tightly.

3. A precision machining machine tool according to claim 1, characterized in that: The rotation control wheel (62) meshes with the rotation control rack (514); a ratchet groove is provided on the inner surface of the rotation control wheel (62), and the ratchet groove meshes with the one-way ratchet (631); the number of the rotating shaft toggle block housings (641) is twelve, and the twelve toggle block housings (641) are distributed in a ring shape around the center of the active dial (64); the number of the groove wheel grooves (651) is twelve, and the twelve groove wheel grooves (651) are distributed in a ring shape around the center of the driven groove wheel (65); the toggle adjustment block (6411) meshes with the groove wheel groove (651), and the groove wheel engaging block (671) meshes with the outer surface of the driven groove wheel (65).

4. A precision machining machine tool according to claim 1, characterized in that: A rack is provided on the outer surface of the clamping linkage rod (741); the flip output rack (7423) penetrates the gear box housing (75); the feeding control rack (7436) penetrates the gear box housing (75); the flip input gear (742), the flip synchronization gear (7421), the flip reverse gear (7422), the feeding input gear (743), the feeding synchronization gear A (7431), the feeding acceleration gear A (7432), the feeding synchronization gear B (7433), the feeding acceleration gear B (7434), and the feeding output gear (7435) are all rotatably connected to the inner surface of the gear box housing (75); the movable extrusion plate (73) is parallel to the fixed extrusion plate (66); the flip output rack (7423) is sleeved on the outer surface of the control connection rod (522); and one end of the feeding control rack (7436) is arc-shaped.

5. The precision machining machine tool according to claim 1, characterized in that: The number of the feeding clamps (81) is two, and the two feeding clamps (81) are symmetrically distributed with the central axis of the material buffer box (3) as the symmetry axis, the base connecting column (84) is slidably connected to the outer surface of the feeding control rack (7436), and the two ends of the maintaining spring (89) are respectively fixedly connected to the active spring mounting seat (871) and the driven spring mounting seat (881).

6. The method for using a precision machining machine tool according to claim 1, comprising the following steps: S1. When in use, firstly, the workpiece to be cut is placed between the movable extrusion plate (73) and the fixed extrusion plate (66), the clamping cylinder (71) is started to drive the movable extrusion plate (73) to achieve clamping, the workpiece to be cut is placed in the material buffer box (3), the feeding clamp (81) is pulled backward so that the workpiece at the bottom falls onto the feeding clamp (81), and the material at the top continues to be buffered in the material buffer box (3), but will be blocked by the feeding clamp (81) and cannot fall; S2. According to the angle between different surfaces of the cutting material, the rhythm control mechanism (6) is adjusted to the required rotation angle each time. The active dial (64) is meshed with the groove (651) on the driven groove wheel (65) through multiple externally connected toggle adjustment blocks (6411). Only when the toggle adjustment block (6411) contacts the groove (651) can the driven groove wheel (65) be driven to rotate. According to the number of extended toggle adjustment blocks (6411), the active dial (64) drives the driven groove wheel (65) to rotate at different angles each time it rotates. Multiple toggle adjustment blocks (6411) have higher control accuracy. S3. After the clamping and angle adjustment are completed, the driving cylinder (53) is started to drive the active moving block (54) to move horizontally, and the active moving block (54) drives the driven connecting rod (55) to control the bottom moving block (56) and the top moving block (561) to move away from or closer to each other, and drives the working cutter head (511) and the supporting plate (58) to move away from or closer to each other. The lifting and lowering of the working cutter head (511) is delayed compared to the supporting plate (58) to provide cutting time. When the working cutter head (511) approaches Cutting and supporting the workpiece with a support plate (58) at the bottom to prevent the workpiece from bending, the active moving block (54) drives the active dial (64) on the rhythm control mechanism (6) to rotate through the rack during movement, thereby controlling the rotation of the driven groove wheel (65) to drive the clamped workpiece to rotate, and a one-way ratchet (631) is installed at the rotation control rack (514) to prevent reverse rotation, and the clamping part rotates a certain angle only when the working cutter head (511) is retracted, and remains stationary when pressed down, until the cutting of each surface is completed continuously; S4. When the cutting of each surface is completed, the clamping cylinder (71) is released, and the movable extrusion plate (73) no longer clamps the workpiece, causing it to fall. When the clamping cylinder (71) is released, the clamping linkage rod (741) is driven through the bottom rack connection seat (74) to control the gear box housing (75) to work. When the clamping cylinder (71) is released, one side extends outward to push the tipping control rod (521) to rotate and drive the support plate (58) to tilt, so that the workpiece falls into the bottom support plate (58) and then rolls out. The other side pulls the automatic lower The feeding clamp (81) on the feeding mechanism (8) pushes the uncut workpiece to between the movable extrusion plate (73) and the fixed extrusion plate (66), the clamping cylinder (71) is retracted again, the support plate (58) is no longer tilted, and continues to rise to provide a supporting effect, the movable extrusion plate (73) and the fixed extrusion plate (66) clamp the new workpiece, and the working cutter head (511) is pressed down again to trigger the spring storage force of the automatic feeding mechanism (8) to maintain the recovery part, so that the feeding clamp (81) is retracted and clamps the next workpiece to be cut.

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