Numerical control machining tool for long-axis parts and use method of numerical control machining tool

Abstract

The invention relates to the technical field of part machining machine tools, and discloses a numerical control machining machine tool for long-shaft parts and a using method thereof.The numerical control machining machine tool comprises a machine tool body, a loading frame is fixedly installed on the upper surface of the machine tool body, a rotating cover is rotationally embedded in the inner wall of the loading frame, and an output shaft of a servo motor is coaxially and fixedly installed on the end face of the rotating cover; the servo motor is horizontally and fixedly mounted at the top of the lathe bed; the device further comprises an inner disc, the outer edge of the end face of the inner disc is coaxially and fixedly installed on the inner wall of the rotating cover, a bevel gear ring is coaxially arranged on the outer side of the inner disc, and the bevel gear ring is coaxially and fixedly installed on the tooth face of one side of the transmission gear ring. According to the numerical control machining tool for the long-axis parts and the using method and device of the numerical control machining tool, the device is provided with an anti-slip structure of the parts, and in the part machining process, if the accidental slip phenomenon occurs, the device can automatically apply acting force to a part locking and clamping structure, so that the clamping force of the clamping structure is improved.

Description

Technical Field

[0001] The invention relates to the technical field of parts processing machine tools, in particular to a CNC processing machine tool for long-axis parts and a use method thereof. Background Art

[0002] During the machining of long shaft parts, the parts need to be clamped by the clamping structure on the machine tool, and then the clamping structure and the parts are driven to rotate by the motor spindle of the machine tool, and the rotating parts are cut by the moving tool mounting structure. However, there are still some problems with existing CNC machining machines: For example, a CNC machine tool for machining long-axis parts with announcement number CN113084212B includes a machine platform, a three-jaw chuck and a positioning clamping mechanism, which includes a base, a positioning main cylinder, a positioning push rod, a fixed disc, a clamping sub-cylinder and a clamping assembly. The positioning push rod is fixedly connected to the main piston rod, the fixed disc and the positioning push rod are arranged coaxially, the positioning push rod can be slidably inserted into the center of the fixed disc, the sub-cylinder body is fixed to the fixed disc, the sub-cylinder body is connected to the main cylinder body, and the sub-piston is arranged along the radial direction of the fixed disc; The CNC machine tool for machining long-axis parts with announcement number CN115106808A relates to the field of machine tools. The following scheme is proposed, which includes a casing, a tool feeding mechanism, a base, a motor group, a triangular gripper and long-axis parts. The tool feeding mechanism, the base, the motor group, the triangular gripper and the long-axis parts are all arranged inside the casing, and the tool feeding mechanism is arranged above the base; The clamping parts will wear out after long-term use, and combined with factors such as tool cutting impact, parts may slip during use of the device, causing damage to the parts and the tool. The clamping structure of the above-mentioned device has a relatively simple functionality and cannot automatically lock the slipping parts.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original CNC machining machine tools. Summary of the invention

[0004] The purpose of the present invention is to provide a CNC machining machine for long shaft parts and a method of using the same, so as to solve the following problems of the existing CNC machining machine tools proposed in the above background technology: the clamping structure of the device has a relatively simple functionality and cannot automatically lock the slipping parts.

[0005] To achieve the above object, the present invention provides the following technical solution: a CNC machining machine tool for long shaft parts, comprising: A bed, on the upper surface of which a loading frame is fixedly mounted, a rotating cover is rotatably embedded on the inner wall of the loading frame, and an output shaft of a servo motor is coaxially fixedly mounted on the end surface of the rotating cover, and the servo motor is horizontally fixedly mounted on the top of the bed; Also includes: The outer edge of the end face of the inner disk is coaxially fixedly mounted on the inner wall of the rotating cover, the outer side of the inner disk is coaxially provided with a bevel gear ring, and the bevel gear ring is coaxially fixedly mounted on the tooth surface of one side of the transmission gear ring, and a limiting ring is coaxially fixedly connected to the tooth surface of the other side of the transmission gear ring, and the limiting ring is rotatably embedded in the inner wall of the rotating cover, a driving gear is meshed at the top of the transmission gear ring, and one end of a transmission rod is coaxially fixedly installed through the driving gear, and the other end of the transmission rod is rotatably embedded in the inner wall of the rotating cover, a handwheel rod is coaxially fixedly connected to a side of the transmission rod close to the driving gear, and the handwheel rod is rotatably arranged through the end of the rotating cover, three sliding grooves are opened at the center of the inner disk, and a fastening block for clamping parts is slidably installed in the sliding groove of the inner disk, and the fastening blocks are distributed at equal angles around the axis of the inner disk, and a screw is rotatably embedded at the center of the end of the fastening block, and the rod body of the screw passes through the side wall of the inner disk, and the two form a threaded transmission relationship; A connecting ring frame, whose side wall is coaxially fixedly connected to the inner wall of the rotating cover, one side of the connecting ring frame is coaxially arranged toward the disk surface of the inner disk, and a fixed cover is fixedly connected to the outer edge of the other side of the connecting ring frame, and a docking mechanism is installed through the top of the fixed cover, and the docking mechanism includes a rotating cylinder, one end of the rotating cylinder is rotatably embedded between the inner wall of the rotating cover and the outer wall of the end of the transmission rod, and a thrust plug rod is coaxially rotatably installed through the other end of the rotating cylinder, and the rod body of the thrust plug rod is slidably inserted through the pressure cylinder, and the plug body of the thrust plug rod is coaxially fitted on the inner wall of the pressure cylinder, and the pressure cylinder is fixedly installed through the fixed cover.

[0006] Preferably, three bevel gears with equal angles are meshed on the side of the bevel gear ring away from the transmission gear ring, and a positioning sleeve is coaxially fixed and installed on the bevel gear, one end of the positioning sleeve is rotatably embedded in the inner wall of the embedding cylinder, and the other end of the positioning sleeve is rotatably fitted on the outer wall of the inner disk, and the embedding cylinder is fixedly embedded on the inner wall of the rotating cover, a side wall of a screw is slidably fitted on the inner wall of the positioning sleeve, and a sliding block is coaxially fixedly connected to the end of the screw away from the fastening block, and the protrusions on both sides of the sliding block are slidably embedded on the inner wall of the positioning sleeve to form a transmission structure, and the axis of the screw and the axis of the inner disk intersect vertically, so that the positioning sleeve can drive the screw to rotate through the sliding block.

[0007] Preferably, a one-way tooth groove is provided on the middle side wall of the transmission rod, a pressure block is vertically arranged above the middle of the transmission rod, and a one-way tooth is fixedly connected to the bottom surface of the pressure block, and the lower end of the one-way tooth is fit-embedded in the corresponding one-way tooth groove to form a one-way limiting structure, the top of the pressure block is fit-inserted at the lower port of the storage tube, and a first spring is fixedly connected between the upper end surface of the pressure block and the top of the inner wall of the storage tube, and a control rod is slidably inserted in the sliding groove on the upper part of the pressure block, and the rod body thread on the upper part of the control rod passes through the storage tube and the rotating cover, so that the pressure block can drive the one-way tooth to move.

[0008] Preferably, force blocks with equal angle distribution are fixedly connected to the end face of the transmission rod, and the force blocks are located on the inner side of the rotating cylinder, and a moving block is coaxially arranged on the inner wall of the rotating cylinder to form a sliding limiting structure, and thrust bumps with equal angle distribution are fixedly installed on the end face of the moving block, and the end of the thrust bump faces the space between two adjacent force blocks, and the end of the thrust bump is not on the rotation trajectory of the force block, so that the moving block can drive the thrust bump to move.

[0009] Preferably, the end of the rod body of the thrust plug rod is rotatably embedded in the end of the moving block away from the thrust protrusion, and a second spring is fixedly connected between the end face of the plug body of the thrust plug rod and the inner wall of the pressure cylinder, and the side of the pressure cylinder away from the thrust plug rod is fixedly connected to the upper port of the connecting pipe, and the upper part of the connecting pipe is fixedly installed on the fixed cover, and the upper port of the connecting pipe is arranged toward the plug body of the thrust plug rod, so that the thrust plug rod can move in the pressure cylinder.

[0010] Preferably, two ends of an external gear housing are coaxially embedded in the middle of the outer wall of the rotating cylinder, and a coil spring is fixedly connected between the inner wall of the external gear housing and the outer wall of the rotating cylinder, the teeth of the external gear housing and the teeth on the fixed ring frame form a meshing transmission relationship, the fixed ring frame is coaxially arranged between the rotating cover and the fixed cover, and the bottom end of the fixed ring frame is fixedly mounted on the bed, and the teeth on the fixed ring frame are distributed at equal angles, so that the external gear housing can drive the rotating cylinder to rotate through the coil spring.

[0011] Preferably, a symmetrically distributed oil cylinder barrels are fixedly installed on the bottom inner wall of the connecting ring frame, a connecting pipe is fixedly installed through the top of the connecting ring frame, and two lower ports of the connecting pipe are respectively fixedly connected to the corresponding tops of the oil cylinder barrels, a plug head with an arc-shaped plug rod is slidably fitted on the inner wall of the lower end of the oil cylinder barrel, and the arc-shaped plug rod and the oil cylinder barrel are both arc-shaped structures, and the rod body of the arc-shaped plug rod slides through the bottom end of the oil cylinder barrel, a contact head is fixedly connected to the end of the rod body of the arc-shaped plug rod, and a third spring is fixedly connected between the end face of the contact head and the outer wall of the oil cylinder barrel, and the third spring is sleeved on the outside of the rod body of the arc-shaped plug rod, so that the arc-shaped plug rod can move in the oil cylinder barrel.

[0012] Preferably, a limit block is rotatably arranged in the annular groove at the bottom of the connecting ring frame, and the cross-section of the limit block is in a "T" shape. The top of the limit block is fixedly connected to the bottom of the guide column, and the upper end of the guide column is coaxially slidably inserted in the bottom of the sleeve, and the axis of the guide column and the axis of the connecting ring frame intersect vertically, and the two sides of the lower part of the guide column are fitted with a contact head away from the side of the arc plug rod, so that the limit block can move in the connecting ring frame.

[0013] Preferably, the top of the sleeve is fixedly connected to the middle of the bottom surface of the lower loading box, and symmetrically distributed guide rods are fixedly installed on both sides of the upper surface of the lower loading box, and the upper part of the guide rod slides through the upper loading box, and the top of the guide rod is threadedly connected to a fastening handwheel, and the fastening handwheel is above the upper loading box. The upper loading box is arranged directly above the lower loading box, and the lower mounting groove of the upper loading box and the upper mounting groove of the lower loading box are elastically connected with corresponding fastening plates through springs, and the fastening plates are evenly spaced and fit on the upper loading box and the lower loading box, so that the fastening handwheel can move on the guide rod.

[0014] The operation method of CNC machining machine tools includes the following steps: S1: The user places one end of the long-axis part on the movable bracket of the bed, and then puts the other end of the part between the three fastening blocks, and then turns the handwheel rod. The handwheel rod will drive the driving gear to rotate through the transmission rod, and the driving gear will drive the transmission gear ring to rotate. The transmission gear ring will drive the limiting ring and the bevel gear ring to rotate synchronously. At this time, the bevel gear ring will drive the three meshing bevel gears to rotate synchronously, and the bevel gear will drive the positioning sleeve to rotate. The positioning sleeve will drive the corresponding screw to rotate synchronously through the sliding block, so that the screw can move on the threaded inner disk. At this time, the end of the screw will push the fastening block to move synchronously, and the three fastening blocks will move synchronously on the inner disk, and the end of the part will be clamped by the three fastening blocks; S2: Then the user turns the tightening hand wheel, and the tightening hand wheel will move on the top of the guide rod, and the tightening hand wheel will drive the upper loading box to move, at this time the upper loading box and the lower loading box will be close to each other, because the installation grooves of the upper loading box and the lower loading box are both fitted with elastically connected tightening plates, so the tightening plates will be pressed tightly against the outer wall of the part, and under the joint action of the tightening hand wheel, the guide rod and the tightening plate, the upper loading box and the lower loading box will be tightened on the outer wall of the part; S3: When the user starts the servo motor, the servo motor will drive the rotating cover to rotate on the loading frame, and the rotating cover will drive the fastening block to rotate through the inner disk. At this time, the fastening block will drive the clamped parts to rotate synchronously, so that the tool equipment installed on the bed can perform processing operations. The rotating cover will drive the fixedly connected connecting ring frame and the fixed cover to rotate synchronously. At the same time, the rotating parts will drive the guide column to rotate synchronously through the lower loading box and the sleeve, so that the limit block and the connecting ring frame at the bottom of the guide column remain relatively still; S4: If slippage occurs during the processing of the part, since the upper loading box and the lower loading box are clamped and fixed on the side wall of the part, the guide column at the bottom of the lower loading box will no longer remain relatively still with the connecting ring frame. At this time, the guide column will deflect, and the guide column will drive the limit block to move synchronously in the ring groove of the connecting ring frame, and the side wall of the guide column will push the corresponding contact head to move, and the contact head will drive the corresponding arc plug rod to move, and at the same time, the contact head will compress the third spring, and then the plug body of the arc plug rod will squeeze the hydraulic oil in the cylinder barrel, so that the hydraulic oil in the cylinder barrel flows into the pressure cylinder through the connecting pipe. At this time, the hydraulic oil in the pressure cylinder will push the thrust plug rod to move, and the thrust plug rod will compress the second spring. At the same time, the end of the thrust plug rod will push the rotatably connected moving block to move, so that the thrust protrusion at the end of the moving block moves synchronously, so that the thrust protrusion can enter the rotation trajectory of the force-bearing block to form a transmission relationship; S5: At this time, the rotating rotating cover will drive the outer gear housing to move along the inner wall of the fixed ring frame through the rotating cylinder. Since the fixed ring frame is provided with spaced teeth, when the teeth on the outer gear housing contact the teeth on the fixed ring frame, the outer gear housing itself will rotate, and the outer gear housing drives the rotating cylinder to rotate through the coil spring. When the teeth on the outer gear housing no longer contact the teeth on the fixed ring frame, the coil spring will drive the outer gear housing to reset through the reset effect, and the rotating rotating cylinder will drive the force block to rotate through the moving block and the thrust protrusion. At the same time, the force block will drive the transmission rod to rotate. At this time, the transmission rod will drive the driving gear to rotate, and the driving gear The gear can drive the transmission gear ring and the bevel gear ring to rotate again, so that the bevel gear ring can drive the fastening block to move through the positioning sleeve, the sliding block and the screw, thereby increasing the fastening pressure of the fastening block on the part, thereby preventing the part from continuing to slip and reducing the risk of part damage during processing. During the rotation of the transmission rod, the one-way teeth will be tightly pressed against the one-way tooth groove on the transmission rod to form a one-way rotation limiting structure. After the part processing is completed, the user can rotate the control rod to move the control rod on the threaded rotating cover and the storage tube. The bottom end of the control rod will drive the one-way teeth to move synchronously through the pressure block to release the limiting relationship.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the CNC machining machine tool for long shaft parts and the method of using the same are provided with an anti-skid structure for parts. If an unexpected skid occurs during the machining of the parts, the device can automatically apply a force to the locking and clamping structure of the parts to increase the clamping force of the clamping structure. The specific contents are as follows: 1. The end of the moving block away from the thrust protrusion is rotated to embed the end of the rod body of the thrust plug rod, the side of the pressure cylinder away from the thrust plug rod is fixedly connected to the upper port of the connecting pipe, and the bottom inner wall of the connecting ring frame is fixedly installed with symmetrically distributed oil cylinder barrels, and the two lower ports of the connecting pipe are respectively fixedly connected to the top of the corresponding oil cylinder barrels. The plug head of the arc plug rod is slidably fitted on the inner wall of the lower end of the oil cylinder barrel, and the end of the rod body of the arc plug rod is fixedly connected with a contact head. A limited block is rotatably fitted in the annular groove at the bottom of the connecting ring frame, and the upper end of the guide column is coaxially slidably inserted into the bottom of the sleeve, and both sides of the lower part of the guide column are fitted A contact head is provided on one side away from the arc plug rod. When the part slips, the part will drive the sleeve and the guide column to move through the fastening structure composed of the upper loading box and the lower loading box, so that the guide column no longer remains relatively still with the connecting ring frame. At this time, the top of the guide column will push the corresponding arc plug rod to move through the contact head, so that the arc plug rod can press the oil in the oil cylinder barrel out, and the oil enters the pressure cylinder through the connecting pipe, thereby driving the thrust plug rod to move. The thrust plug rod pushes the rotating connected moving block to move synchronously, so that the thrust protrusion at the end of the moving block can form a transmission structure with the force block on the transmission rod; 2. The two ends of the external gear case are coaxially embedded in the middle of the outer wall of the rotating cylinder, and a coil spring is fixedly connected between the inner wall of the external gear case and the outer wall of the rotating cylinder. The teeth of the external gear case and the teeth on the fixed ring frame form a meshing transmission relationship. The fixed ring frame is coaxially arranged between the rotating cover and the fixed cover, and the bottom end of the fixed ring frame is fixedly mounted on the bed. The teeth on the fixed ring frame are distributed at equal angles, so that the teeth on the fixed ring frame can drive the external gear case to rotate, and the external gear case will drive the rotating cylinder to rotate synchronously through the coil spring, and the rotating cylinder will drive the force block to rotate through the moving block and the thrust protrusion, and the force block drives the driving gear to rotate through the transmission rod. At this time, the driving gear will drive the transmission gear ring and the bevel gear ring to rotate, so that the bevel gear ring can drive the three clamping structures to move synchronously, thereby improving the clamping force of the device on the slipping parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the loading rack of the present invention; Figure 3 This is a schematic diagram of the installation structure of the rotating cover of the present invention; Figure 4 This is a schematic diagram of the drive gear installation structure of the present invention; Figure 5 This is a schematic diagram of the inner disk installation structure of the present invention; Figure 6 It is a schematic diagram of the installation structure of the transmission rod of the present invention; Figure 7 This is a schematic diagram of the connecting pipe installation structure of the present invention; Figure 8 This is a schematic diagram of the installation structure of the fastening block of the present invention; Fig. 9 This is a schematic diagram of the installation structure of the outer gear housing of the present invention; Fig.10 This is a schematic diagram of the thrust plug rod installation structure of the present invention; Fig.11 This is a schematic diagram of the installation structure of the moving block of the present invention; Fig.12 This is a schematic diagram of the installation structure of the force bearing block of the present invention; Fig.13 This is a schematic diagram of the installation structure of the arc-shaped plug rod of the present invention; Fig.14 This is a schematic diagram of the guide column installation structure of the present invention.

[0017] In the figure: 1, bed; 2, loading frame; 3, rotating cover; 4, servo motor; 5, limiting ring; 6, transmission gear ring; 7, driving gear; 8, handwheel rod; 9, transmission rod; 10, bevel gear ring; 11, bevel gear; 12, positioning sleeve; 13, sliding block; 14, screw rod; 15, fastening block; 16, fitting cylinder; 17, inner plate; 18, one-way tooth groove; 19, one-way tooth; 20, pressure block; 21, storage cylinder; 22, first spring; 23, control rod; 24, force block; 25, docking mechanism; 2501, rotating cylinder; 2 502, moving block; 2503, thrust protrusion; 2504, outer gear housing; 2505, coil spring; 2506, thrust plug rod; 2507, pressure cylinder; 2508, second spring; 26, fixed cover; 27, connecting pipe; 28, fixed ring frame; 29, cylinder barrel; 30, arc plug rod; 31, third spring; 32, contact head; 33, limit block; 34, guide column; 35, sleeve; 36, lower loading box; 37, fastening plate; 38, upper loading box; 39, connecting ring frame; 40, guide rod; 41, fastening handwheel. DETAILED DESCRIPTION

[0018] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 14 The present invention provides a technical solution: a CNC machining machine for long shaft parts, comprising: A bed 1 is fixedly mounted with a loading frame 2 on its upper surface, a rotating cover 3 is rotatably embedded on the inner wall of the loading frame 2, and an output shaft of a servo motor 4 is coaxially fixedly mounted on the end surface of the rotating cover 3, and the servo motor 4 is horizontally fixedly mounted on the top of the bed 1; Also includes: The inner disk 17 has an outer edge of an end face coaxially fixedly mounted on the inner wall of the rotating cover 3, a bevel gear ring 10 is coaxially arranged on the outer side of the inner disk 17, and the bevel gear ring 10 is coaxially fixedly mounted on the tooth surface of one side of the transmission gear ring 6, and a limiting ring 5 is coaxially fixedly connected to the tooth surface of the other side of the transmission gear ring 6, the limiting ring 5 is rotatably embedded in the inner wall of the rotating cover 3, a driving gear 7 is meshedly arranged on the top of the transmission gear ring 6, and one end of a transmission rod 9 is coaxially fixedly installed on the driving gear 7, and the other end of the transmission rod 9 is rotatably embedded in the rotating cover 3. On the inner wall of the rotating cover 3, a handwheel rod 8 is coaxially fixedly connected to one side of the transmission rod 9 close to the driving gear 7, and the handwheel rod 8 is rotatably arranged to penetrate the end of the rotating cover 3, three slide grooves are opened at the center of the inner disk 17, and a fastening block 15 for clamping parts is slidably installed in the slide groove of the inner disk 17, and the fastening blocks 15 are distributed at equal angles around the axis of the inner disk 17, and a screw rod 14 is rotatably embedded at the center of the end of the fastening block 15, and the rod body of the screw rod 14 penetrates the side wall of the inner disk 17, and the two form a threaded transmission relationship; A connecting ring frame 39, whose side wall is coaxially fixedly connected to the inner wall of the rotating cover 3, one side of the connecting ring frame 39 is coaxially arranged toward the disk surface of the inner disk 17, and a fixed cover 26 is fixedly connected to the outer edge of the other side of the connecting ring frame 39, and a docking mechanism 25 is installed through the top of the fixed cover 26, and the docking mechanism 25 includes a rotating cylinder 2501, one end of the rotating cylinder 2501 is rotatably embedded between the inner wall of the rotating cover 3 and the outer wall of the end of the transmission rod 9, and a thrust plug rod 2506 is coaxially rotatably installed through the other end of the rotating cylinder 2501, and the rod body of the thrust plug rod 2506 is slidably inserted through the pressure cylinder 2507, and the plug body of the thrust plug rod 2506 is coaxially fitted on the inner wall of the pressure cylinder 2507, and the pressure cylinder 2507 is fixedly installed through the fixed cover 26.

[0020] The bevel gear ring 10 is meshed with three bevel gears 11 with equal angles on one side away from the transmission gear ring 6, and a positioning sleeve 12 is coaxially fixedly installed on the bevel gear 11, one end of the positioning sleeve 12 is rotatably embedded in the inner wall of the embedding cylinder 16, and the other end of the positioning sleeve 12 is rotatably fitted on the outer wall of the inner disk 17, and the embedding cylinder 16 is fixedly embedded on the inner wall of the rotating cover 3, and the inner wall of the positioning sleeve 12 is slidably fitted with the side wall of the screw 14, and the end of the screw 14 away from the fastening block 15 is coaxially fixedly connected with a sliding Block 13, and the protrusions on both sides of the sliding block 13 are slidably embedded in the inner wall of the positioning sleeve 12 to form a transmission structure, and the axis of the screw 14 and the axis of the inner disk 17 are perpendicularly intersected, so that the transmission rod 9 can drive the transmission gear ring 6 to rotate through the driving gear 7, and the transmission gear ring 6 will drive the three bevel gears 11 to rotate through the bevel gear ring 10, and the bevel gear 11 drives the screw 14 to rotate through the positioning sleeve 12 and the sliding block 13, and the screw 14 will move on the threaded inner disk 17, and the screw 14 can push the fastening block 15 to move synchronously.

[0021] The top of the sleeve 35 is fixedly connected to the middle of the bottom surface of the lower loading box 36, and symmetrically distributed guide rods 40 are fixedly installed on both sides of the upper surface of the lower loading box 36, and the upper part of the guide rod 40 slides through the upper loading box 38, and the top of the guide rod 40 is threadedly connected with a tightening handwheel 41, and the tightening handwheel 41 is located above the upper loading box 38. The upper loading box 38 is arranged just above the lower loading box 36, and the lower mounting groove of the upper loading box 38 and the upper mounting groove of the lower loading box 36 are elastically connected with corresponding tightening plates 37 through springs, and the tightening plates 37 are evenly spaced and fitted on the upper loading box 38 and the lower loading box 36. When the user turns the tightening handwheel 41, the tightening handwheel 41 will move on the threaded guide rod 40. When the upper loading box 38 and the lower loading box 36 move toward the parts, the parts are tightened and fixed by the fastening plates 37 elastically connected on the upper loading box 38 and the lower loading box 36. When the parts slip, the parts can drive the lower loading box 36 and the connecting ring frame 39 to be misaligned. Since the limiting block 33 is rotatably fitted in the annular groove at the bottom of the connecting ring frame 39, and the cross-section of the limiting block 33 is in a "T" shape, the top of the limiting block 33 is fixedly connected to the bottom of the guide column 34, and the upper end of the guide column 34 is coaxially slidably inserted in the bottom of the sleeve 35, and the axis of the guide column 34 and the axis of the connecting ring frame 39 intersect vertically, the lower sides of the guide column 34 are fitted with the side of the contact head 32 away from the arc plug rod 30, at this time, the lower loading box 36 passes through the sleeve 35 The guide column 34 and the limit block 33 are driven to move synchronously, so that the guide column 34 can push the contact head 32 and the arc plug rod 30 to move synchronously. Since the bottom inner wall of the connecting ring frame 39 is fixedly installed with symmetrically distributed oil cylinder barrels 29, the top of the connecting ring frame 39 is fixedly penetrated with a connecting pipe 27, and the two lower ports of the connecting pipe 27 are respectively fixedly connected to the top of the corresponding oil cylinder barrel 29, and the plug head of the arc plug rod 30 is slidably fitted on the inner wall of the lower end of the oil cylinder barrel 29, and the arc plug rod 30 and the oil cylinder barrel 29 are both in an arc-shaped structure, and the rod body of the arc plug rod 30 is slidably penetrated through the bottom end of the oil cylinder barrel 29, and the end of the rod body of the arc plug rod 30 is fixedly connected with the contact head 32, and the end face of the contact head 32 is fixedly connected to the outer wall of the oil cylinder barrel 29 There is a third spring 31, and the third spring 31 is sleeved on the outside of the rod body of the arc-shaped plug rod 30. At this time, the arc-shaped plug rod 30 can send the oil in the oil cylinder barrel 29 into the connecting pipe 27. Because the end of the moving block 2502 away from the thrust protrusion 2503 is rotated to embed the end of the rod body of the thrust plug rod 2506, and the second spring 2508 is fixedly connected between the plug body end face of the thrust plug rod 2506 and the inner wall of the pressure cylinder 2507. The side of the pressure cylinder 2507 away from the thrust plug rod 2506 is fixedly connected with the upper port of the connecting pipe 27, and the upper part of the connecting pipe 27 is fixedly installed on the fixed cover 26, and the upper port of the connecting pipe 27 is arranged toward the plug body of the thrust plug rod 2506. At this time, the oil in the connecting pipe 27 will enter the pressure cylinder 2507.The oil can push the thrust plug rod 2506 to move synchronously, and the thrust plug rod 2506 will drive the moving block 2502 to move synchronously. Since the end face of the transmission rod 9 is fixedly connected with the force-bearing block 24 with equal angle distribution, and the force-bearing block 24 is located on the inner side of the rotating cylinder 2501, the moving block 2502 is coaxially arranged on the inner wall of the rotating cylinder 2501 to form a sliding limit structure, and the end face of the moving block 2502 is fixedly installed with thrust protrusions 2503 with equal angle distribution, and the end of the thrust protrusion 2503 faces the space between two adjacent force-bearing blocks 24, and the end of the thrust protrusion 2503 is not on the rotation track of the force-bearing block 24. At this time, the moving block 2502 will drive the thrust protrusion 2503 to move toward the force-bearing block 24, thereby forming a transmission relationship.

[0022] The two ends of the outer gear housing 2504 are coaxially embedded in the middle of the outer wall of the rotating cylinder 2501, and a coil spring 2505 is fixedly connected between the inner wall of the outer gear housing 2504 and the outer wall of the rotating cylinder 2501. The teeth of the outer gear housing 2504 form a meshing transmission relationship with the teeth on the fixed ring frame 28. The fixed ring frame 28 is coaxially arranged between the rotating cover 3 and the fixed cover 26, and the bottom end of the fixed ring frame 28 is fixedly installed on the bed 1, and the teeth on the fixed ring frame 28 are distributed at equal angles. When the teeth on the fixed ring frame 28 drive the outer gear housing 2504 to rotate, the outer gear housing 2504 will drive the rotating cylinder 2501 to rotate synchronously through the coil spring 2505, and the rotating cylinder 2501 drives the force block 24 to rotate through the moving block 2502 and the thrust protrusion 2503. The force block 24 will drive the transmission rod 9 to rotate synchronously. Since a one-way tooth groove 18 is provided on the middle side wall of the transmission rod 9, a pressure block 20 is vertically arranged above the middle part of the transmission rod 9, and a one-way tooth 19 is fixedly connected to the bottom surface of the pressure block 20, and the lower end of the one-way tooth 19 is fit-embedded in the corresponding one-way tooth groove 18 to form a one-way limiting structure, and the top of the pressure block 20 is fit-inserted at the lower port of the storage tube 21, and a first spring 22 is fixedly connected between the upper end surface of the pressure block 20 and the top of the inner wall of the storage tube 21, and a control rod 23 is slidably inserted in the sliding groove on the upper part of the pressure block 20, and the rod body thread on the upper part of the control rod 23 passes through the storage tube 21 and the rotating cover 3. When the transmission rod 9 rotates, the one-way tooth 19 can limit the rotation direction of the transmission rod 9.

[0023] The operation method of CNC machining machine tools includes the following steps: S1: The user places one end of the long-axis part on the movable bracket of the bed 1, and then puts the other end of the part between the three fastening blocks 15, and then rotates the handwheel rod 8. The handwheel rod 8 will drive the driving gear 7 to rotate through the transmission rod 9, and the driving gear 7 will drive the transmission gear ring 6 to rotate. The transmission gear ring 6 will drive the limiting ring 5 and the bevel gear ring 10 to rotate synchronously. At this time, the bevel gear ring 10 will drive the three meshing bevel gears 11 to rotate synchronously. The bevel gear 11 will drive the positioning sleeve 12 to rotate, and the positioning sleeve 12 will drive the corresponding screw 14 to rotate synchronously through the sliding block 13, so that the screw 14 can move on the threaded inner disk 17. At this time, the end of the screw 14 will push the fastening block 15 to move synchronously, and the three fastening blocks 15 will move synchronously on the inner disk 17, and the end of the part will be clamped by the three fastening blocks 15; S2: Then the user turns the tightening hand wheel 41, and the tightening hand wheel 41 will move on the top of the guide rod 40, and the tightening hand wheel 41 will drive the upper loading box 38 to move, at this time the upper loading box 38 and the lower loading box 36 will be close to each other, because the upper loading box 38 and the lower loading box 36 are both fitted with elastically connected tightening plates 37 in the installation grooves, so the tightening plates 37 will be pressed tightly against the outer wall of the part, and under the joint action of the tightening hand wheel 41, the guide rod 40 and the tightening plate 37, the upper loading box 38 and the lower loading box 36 will be tightened on the outer wall of the part; S3: When the user starts the servo motor 4, the servo motor 4 will drive the rotating cover 3 to rotate on the loading frame 2, and the rotating cover 3 will drive the fastening block 15 to rotate through the inner disk 17. At this time, the fastening block 15 will drive the clamped parts to rotate synchronously, so that the tool equipment installed on the bed 1 can perform processing operations. The rotating cover 3 will drive the fixedly connected connecting ring frame 39 and the fixed cover 26 to rotate synchronously. At the same time, the rotating parts will drive the guide column 34 to rotate synchronously through the lower loading box 36 and the sleeve 35, so that the limit block 33 and the connecting ring frame 39 at the bottom of the guide column 34 remain relatively still; S4: If the part slips during machining, since the upper loading box 38 and the lower loading box 36 are clamped and fixed on the side wall of the part, the guide column 34 at the bottom of the lower loading box 36 will no longer remain relatively still with the connecting ring frame 39. At this time, the guide column 34 will deflect, and the guide column 34 will drive the limit block 33 to move synchronously in the ring groove of the connecting ring frame 39, and the side wall of the guide column 34 will push the corresponding contact head 32 to move, and the contact head 32 will drive the corresponding arc plug rod 30 to move, and at the same time, the contact head 32 will compress the third spring 31, and then the arc plug The plug body of the rod 30 will squeeze the hydraulic oil in the oil cylinder barrel 29, so that the hydraulic oil in the oil cylinder barrel 29 flows into the pressure cylinder 2507 through the connecting pipe 27. At this time, the hydraulic oil in the pressure cylinder 2507 will push the thrust plug rod 2506 to move, and the thrust plug rod 2506 will compress the second spring 2508. At the same time, the end of the thrust plug rod 2506 will push the rotatably connected moving block 2502 to move, so that the thrust protrusion 2503 at the end of the moving block 2502 moves synchronously, so that the thrust protrusion 2503 can enter the rotation track of the force-bearing block 24 to form a transmission relationship; S5: At this time, the rotating rotating cover 3 will drive the outer gear housing 2504 to move along the inner wall of the fixed ring frame 28 through the rotating cylinder 2501. Since the fixed ring frame 28 is provided with spaced teeth, when the teeth on the outer gear housing 2504 contact the teeth on the fixed ring frame 28, the outer gear housing 2504 itself will rotate, and the outer gear housing 2504 drives the rotating cylinder 2501 to rotate through the coil spring 2505. When the teeth on the outer gear housing 2504 no longer contact the teeth on the fixed ring frame 28, the coil spring 2505 will drive the outer gear housing 2504 to reset through the reset action, and the rotating rotating cylinder 2501 will drive the force block 24 to rotate through the moving block 2502 and the thrust protrusion 2503. At the same time, the force block 24 will drive the transmission rod 9 to rotate. At this time, the transmission The movable rod 9 will drive the driving gear 7 to rotate, and the driving gear 7 can again drive the transmission gear ring 6 and the bevel gear ring 10 to rotate, so that the bevel gear ring 10 can drive the fastening block 15 to move through the positioning sleeve 12, the sliding block 13 and the screw 14, thereby increasing the fastening pressure of the fastening block 15 on the parts, thereby preventing the parts from continuing to slip and reducing the risk of part damage during processing. During the rotation of the transmission rod 9, the one-way teeth 19 will be tightly pressed against the one-way tooth groove 18 on the transmission rod 9 to form a one-way rotation limiting structure. After the parts are processed, the user can rotate the control rod 23 to move the control rod 23 on the threaded rotating cover 3 and the storage tube 21. The bottom end of the control rod 23 will drive the one-way teeth 19 to move synchronously through the pressure block 20 to release the limiting relationship.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC machining machine for long shaft parts, comprising: A bed (1) has a loading frame (2) fixedly mounted on its upper surface, a rotating cover (3) is rotatably embedded on the inner wall of the loading frame (2), and an output shaft of a servo motor (4) is coaxially fixedly mounted on the end surface of the rotating cover (3), and the servo motor (4) is horizontally fixedly mounted on the top of the bed (1); It is characterized by further comprising: The inner disk (17) has an outer edge of an end face coaxially fixedly mounted on the inner wall of the rotating cover (3); a bevel gear ring (10) is coaxially arranged on the outer side of the inner disk (17); the bevel gear ring (10) is coaxially fixedly mounted on the tooth surface of one side of the transmission gear ring (6); and a limiting ring (5) is coaxially fixedly connected to the tooth surface of the other side of the transmission gear ring (6); the limiting ring (5) is rotatably embedded in the inner wall of the rotating cover (3); a driving gear (7) is meshedly arranged on the top of the transmission gear ring (6); and one end of a transmission rod (9) is coaxially fixedly installed through the driving gear (7); and the other end of the transmission rod (9) is rotatably embedded in the transmission gear ring (6). On the inner wall of the rotating cover (3), a handwheel rod (8) is coaxially fixedly connected to a side of the transmission rod (9) close to the driving gear (7), and the handwheel rod (8) is rotatably arranged to penetrate the end of the rotating cover (3), three sliding grooves are opened at the center of the inner disk (17), and a fastening block (15) for clamping parts is slidably installed in the sliding groove of the inner disk (17), and the fastening blocks (15) are distributed at equal angles around the axis of the inner disk (17), and a screw rod (14) is rotatably embedded at the center of the end of the fastening block (15), and the rod body of the screw rod (14) penetrates the side wall of the inner disk (17), and the two form a threaded transmission relationship; A connecting ring frame (39) has a side wall coaxially fixedly connected to the inner wall of the rotating cover (3); one side of the connecting ring frame (39) is coaxially arranged toward the disk surface of the inner disk (17); and a fixed cover (26) is fixedly connected to the outer edge of the other side of the connecting ring frame (39); a docking mechanism (25) is installed through the top of the fixed cover (26); the docking mechanism (25) comprises a rotating cylinder (2501); one end of the rotating cylinder (2501) is rotatably embedded A thrust plug rod (2506) is coaxially rotatably installed between the inner wall of the rotating cover (3) and the outer wall of the end of the transmission rod (9), and the other end of the rotating cylinder (2501) is penetrated, and the rod body of the thrust plug rod (2506) is slidably penetrated through the pressure cylinder (2507), and the plug body of the thrust plug rod (2506) is coaxially fitted on the inner wall of the pressure cylinder (2507), and the pressure cylinder (2507) is fixedly penetrated on the fixed cover (26).

2. A CNC machining machine tool for long shaft parts according to claim 1, characterized in that: The bevel gear ring (10) is meshed with three bevel gears (11) distributed at equal angles on a side away from the transmission gear ring (6), and a positioning sleeve (12) is coaxially fixedly installed on the bevel gear (11), one end of the positioning sleeve (12) is rotatably embedded in the inner wall of the embedding cylinder (16), and the other end of the positioning sleeve (12) is rotatably fitted on the outer wall of the inner disk (17), and the embedding cylinder (16) is fixedly embedded on the inner wall of the rotating cover (3), and the side wall of the screw (14) is slidably fitted on the inner wall of the positioning sleeve (12), and one end of the screw (14) away from the fastening block (15) is coaxially fixedly connected to the sliding block (13), and the protrusions on both sides of the sliding block (13) are slidably embedded in the inner wall of the positioning sleeve (12) to form a transmission structure, and the axis of the screw (14) and the axis of the inner disk (17) intersect vertically.

3. The CNC machining machine tool for long shaft parts according to claim 1, characterized in that: A one-way tooth groove (18) is provided on the middle side wall of the transmission rod (9), a pressure block (20) is vertically arranged above the middle of the transmission rod (9), and a one-way tooth (19) is fixedly connected to the bottom surface of the pressure block (20), and the lower end of the one-way tooth (19) is fitted and embedded in the corresponding one-way tooth groove (18) to form a one-way limiting structure, the top of the pressure block (20) is fitted and inserted at the lower end of the storage tube (21), and a first spring (22) is fixedly connected between the upper end surface of the pressure block (20) and the top of the inner wall of the storage tube (21), and a control rod (23) is slidably inserted in the sliding groove on the upper part of the pressure block (20), and the upper part of the control rod (23) The rod body thread penetrates the storage tube (21) and the rotating cover (3).

4. The CNC machining machine tool for long shaft parts according to claim 1, characterized in that: The end surface of the transmission rod (9) is fixedly connected with a force-bearing block (24) with equal angle distribution, and the force-bearing block (24) is located on the inner side of the rotating cylinder (2501), and a moving block (2502) is coaxially arranged on the inner wall of the rotating cylinder (2501) to form a sliding limit structure, and the end surface of the moving block (2502) is fixedly installed with a thrust protrusion (2503) with equal angle distribution, and the end of the thrust protrusion (2503) faces the space between two adjacent force-bearing blocks (24), and the end of the thrust protrusion (2503) is not located on the rotation trajectory of the force-bearing block (24).

5. The CNC machining machine tool for long shaft parts according to claim 4, characterized in that: The end of the movable block (2502) away from the thrust protrusion (2503) is rotatably embedded with the end of the rod body of the thrust plug rod (2506), and a second spring (2508) is fixedly connected between the end face of the plug body of the thrust plug rod (2506) and the inner wall of the pressure cylinder (2507), and the side of the pressure cylinder (2507) away from the thrust plug rod (2506) is fixedly connected to the upper end of the connecting pipe (27), and the upper part of the connecting pipe (27) is fixedly installed on the fixed cover (26), and the upper end of the connecting pipe (27) is arranged toward the plug body of the thrust plug rod (2506).

6. The CNC machining machine tool for long shaft parts according to claim 1, characterized in that: The middle part of the outer wall of the rotating cylinder (2501) is coaxially rotatably embedded with two ends of an external gear housing (2504), and a coil spring (2505) is fixedly connected between the inner wall of the external gear housing (2504) and the outer wall of the rotating cylinder (2501), and the teeth of the external gear housing (2504) and the teeth on the fixed ring frame (28) form a meshing transmission relationship, the fixed ring frame (28) is coaxially arranged between the rotating cover (3) and the fixed cover (26), and the bottom end of the fixed ring frame (28) is fixedly mounted on the bed (1), and the teeth on the fixed ring frame (28) are distributed at equal angles.

7. The CNC machining machine tool for long shaft parts according to claim 1, characterized in that: The bottom inner wall of the connecting ring frame (39) is fixedly mounted with symmetrically distributed oil cylinder barrels (29); a connecting pipe (27) is fixedly mounted through the top of the connecting ring frame (39); and two lower ports of the connecting pipe (27) are respectively fixedly connected to the top of the corresponding oil cylinder barrel (29); a plug head of an arc plug rod (30) is slidably fitted on the inner wall of the lower end of the oil cylinder barrel (29); the arc plug rod (30) and the oil cylinder barrel (29) are both in an arc-shaped structure; the rod body of the arc plug rod (30) is slidably mounted through the bottom end of the oil cylinder barrel (29); a contact head (32) is fixedly connected to the end of the rod body of the arc plug rod (30); a third spring (31) is fixedly connected between the end surface of the contact head (32) and the outer wall of the oil cylinder barrel (29); and the third spring (31) is sleeved on the outer side of the rod body of the arc plug rod (30).

8. The CNC machining machine tool for long shaft parts according to claim 1, characterized in that: A limit block (33) is rotatably fitted in the annular groove at the bottom of the connecting ring frame (39), and the cross section of the limit block (33) is in a "T" shape. The top of the limit block (33) is fixedly connected to the bottom of the guide column (34), and the upper end of the guide column (34) is coaxially slidably inserted into the bottom of the sleeve (35), and the axis of the guide column (34) and the axis of the connecting ring frame (39) intersect vertically. The lower sides of the guide column (34) are fitted with a contact head (32) away from the arc plug rod (30).

9. The CNC machining machine tool for long shaft parts according to claim 8, characterized in that: The top of the sleeve (35) is fixedly connected to the middle of the bottom surface of the lower loading box (36), and symmetrically distributed guide rods (40) are fixedly installed on both sides of the upper surface of the lower loading box (36), and the upper part of the guide rod (40) is slidably penetrated by the upper loading box (38), and the top of the guide rod (40) is threadedly connected to a tightening hand wheel (41), and the tightening hand wheel (41) is located above the upper loading box (38). The upper loading box (38) is arranged directly above the lower loading box (36), and the lower mounting groove of the upper loading box (38) and the upper mounting groove of the lower loading box (36) are elastically connected with corresponding tightening plates (37) through springs, and the tightening plates (37) are evenly spaced and fit on the upper loading box (38) and the lower loading box (36).

10. A method for using a CNC machining machine tool for long shaft parts, using the CNC machining machine tool for long shaft parts as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1: The user places one end of the long shaft part on the movable bracket of the bed (1), and then feeds the other end of the part between the three fastening blocks (15). Then, the handwheel rod (8) is turned. The handwheel rod (8) drives the driving gear (7) to rotate through the transmission rod (9), and the driving gear (7) drives the transmission gear ring (6) to rotate. The transmission gear ring (6) drives the limiting ring (5) and the bevel gear ring (10) to rotate synchronously. At this time, the bevel gear ring (10) drives the three meshing bevel gears to rotate synchronously. The wheel (11) rotates synchronously, the bevel gear (11) drives the positioning sleeve (12) to rotate, and the positioning sleeve (12) drives the corresponding screw rod (14) to rotate synchronously through the sliding block (13), so that the screw rod (14) can move on the inner disk (17) connected by the thread, and at this time, the end of the screw rod (14) will push the fastening block (15) to move synchronously, and the three fastening blocks (15) will move synchronously on the inner disk (17), and the ends of the parts are clamped by the three fastening blocks (15); S2: Then the user rotates the tightening hand wheel (41), and the tightening hand wheel (41) will move on the top of the guide rod (40), and the tightening hand wheel (41) will drive the upper loading box (38) to move, and at this time the upper loading box (38) and the lower loading box (36) will approach each other. Since the installation grooves of the upper loading box (38) and the lower loading box (36) are both fitted with elastically connected tightening plates (37), the tightening plates (37) will be pressed tightly against the outer wall of the part. Under the joint action of the tightening hand wheel (41), the guide rod (40) and the tightening plate (37), the upper loading box (38) and the lower loading box (36) will be tightened on the outer wall of the part; S3: When the user starts the servo motor (4), the servo motor (4) will drive the rotating cover (3) to rotate on the loading frame (2), and the rotating cover (3) will drive the fastening block (15) to rotate through the inner disk (17). At this time, the fastening block (15) will drive the clamped parts to rotate synchronously, so that the tool equipment installed on the bed (1) can perform processing operations. The rotating cover (3) will drive the fixedly connected connecting ring frame (39) and the fixed cover (26) to rotate synchronously. At the same time, the rotating parts will drive the guide column (34) to rotate synchronously through the lower loading box (36) and the sleeve (35), so that the limit block (33) at the bottom of the guide column (34) and the connecting ring frame (39) remain relatively stationary; S4: If the part slips during processing, since the upper loading box (38) and the lower loading box (36) are clamped and fixed on the side wall of the part, the guide column (34) at the bottom of the lower loading box (36) will no longer remain relatively still with the connecting ring frame (39). At this time, the guide column (34) will deflect, and the guide column (34) will drive the limit block (33) to move synchronously in the ring groove of the connecting ring frame (39), and the side wall of the guide column (34) will push the corresponding contact head (32) to move, and the contact head (32) will drive the corresponding arc plug rod (30) to move, and at the same time, the contact head (32) will compress the third spring (31), and then the arc plug The plug body of the rod (30) squeezes the hydraulic oil in the oil cylinder barrel (29), so that the hydraulic oil in the oil cylinder barrel (29) flows into the pressure cylinder (2507) through the connecting pipe (27). At this time, the hydraulic oil in the pressure cylinder (2507) pushes the thrust plug rod (2506) to move, and the thrust plug rod (2506) compresses the second spring (2508). At the same time, the end of the thrust plug rod (2506) pushes the rotatably connected moving block (2502) to move, so that the thrust protrusion (2503) at the end of the moving block (2502) moves synchronously, so that the thrust protrusion (2503) can enter the rotation track of the force-bearing block (24) to form a transmission relationship; S5: At this time, the rotating cover (3) will drive the outer gear housing (2504) to move along the inner wall of the fixed ring frame (28) through the rotating cylinder (2501). Since the fixed ring frame (28) is provided with teeth distributed at intervals, when the teeth on the outer gear housing (2504) and the teeth on the fixed ring frame (28) come into contact, the outer gear housing (2504) itself will rotate, and the outer gear housing (2504) will drive the rotating cylinder (2501) to rotate through the coil spring (2505). When the teeth on the outer gear housing (2504) are no longer in contact with the teeth on the fixed ring frame (28), the coil spring (2505) will drive the outer gear housing (2504) to reset through the reset action, and the rotating rotating cylinder (2501) will drive the force block (24) to rotate through the moving block (2502) and the thrust protrusion (2503). At the same time, the force block (24) will drive the transmission rod (9) to rotate. At this time, the transmission The rod (9) drives the driving gear (7) to rotate, and the driving gear (7) can again drive the transmission gear ring (6) and the bevel gear ring (10) to rotate, so that the bevel gear ring (10) can drive the fastening block (15) to move through the positioning sleeve (12), the sliding block (13) and the screw rod (14), thereby increasing the fastening pressure of the fastening block (15) on the part, thereby preventing the part from continuing to slip and reducing the risk of part damage during processing. During the rotation of the transmission rod (9), the one-way teeth (19) will be pressed tightly against the one-way tooth groove (18) on the transmission rod (9) to form a one-way rotation limiting structure. After the part processing is completed, the user can rotate the control rod (23) to move the control rod (23) on the threaded rotating cover (3) and the storage tube (21), and the bottom end of the control rod (23) will drive the one-way teeth (19) to move synchronously through the pressure block (20) to release the limiting relationship.

Images