Jig for lathe finish machining
By introducing adjustment mechanism and fine-tuning unit into the lathe fixture, real-time positioning and adjustment of the workpiece is achieved by using sensors and servo motors, the problem of workpiece reduction due to stress deviation in mechanical processing is solved, and the machining accuracy is improved.
Patent Information
- Application Number
- CN202411925979.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the mechanical processing, the workpiece is slightly offset due to external stress, resulting in a decrease in processing accuracy.
A lathe finishing fixture is designed, including an adjustment mechanism and a fine-tuning unit. The clamping force and displacement changes of the workpiece are monitored in real time through pressure sensors and displacement sensors, and the servo motor and magnetic driving clamping unit are used to perform micro-tuning to ensure the stable positioning of the workpiece during processing.
Real-time monitoring and adjustment of the tiny displacements of the workpiece during the processing process is realized, the processing accuracy is improved, and the machining tool can smoothly process the workpiece.
Smart Images

Figure CN119681692A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of jigs, in particular to a jig for lathe finishing. Background Art
[0002] A fixture is a tool used in carpentry, benchwork, machinery, electronic control and some other industries. It is mainly used as a tool to assist in controlling position or movement (or both). In the field of mechanical processing, a fixture can be regarded as a special device for clamping and positioning workpieces. Its purpose is to ensure that the workpiece can be accurately fixed in the appropriate position during the processing and can be processed according to the predetermined requirements.
[0003] In the process of machining the workpiece using a fixture, as the grinding and cutting processes proceed, the workpiece will shift slightly due to external stress, which will lead to a decrease in machining accuracy. Summary of the invention
[0004] In view of the deficiencies of the prior art, the present invention solves the technical problems thereof by adopting the following technical solutions: a lathe finishing jig according to the present invention comprises a jig table, the top of the jig table is fixedly connected with a support plate 1, the outer surface of the support plate 1 is fixedly connected with a positioning pin, the outer surface of the jig table is fixedly connected with a bottom plate, the top of the locking bottom plate is provided with a chip storage groove, the two ends of the chip storage groove are fixedly connected with a collection box, the outer surface of the chip storage groove is fixedly connected with a baffle, the inner wall of the jig table is fixedly connected with a loading unit, the top of the loading unit is fixedly connected with a clamping unit, and the outer surface of the clamping unit is fixedly connected with a fine-tuning unit;
[0005] The fine-tuning unit includes a support rod 1, a power supply is fixedly connected to the top of the fixture table, a signal processor is fixedly connected to the outer surface of the power supply, a transmission column is fixedly connected to the top of the power supply, a wire 1 is fixedly connected to the outer surface of the transmission column, a disc is fixedly connected to the top of the support rod 1, a support frame 1 is fixedly connected to the outer surface of the disc, a servo motor 1 is fixedly connected to the outer surface of the support frame 1, and an adjustment mechanism is fixedly connected to the side of the disc away from the servo motor 1;
[0006] The adjustment mechanism includes a fixed plate, a side of the fixed plate away from the disk is fixedly connected to a telescopic spring, an end of the telescopic spring away from the fixed plate is fixedly connected to a supporting magnetic block, an output end of the servo motor 1 is fixedly connected to a rotating shaft, an outer surface of the rotating shaft is fixedly connected to a rotating arm, an end of the rotating arm away from the rotating shaft is fixedly connected to an electromagnetic block, and an outer surface of the electromagnetic block is fixedly connected to a second wire.
[0007] Preferably, the outer surface of the fixing plate is fixedly connected to a side of the disc away from the servo motor.
[0008] Preferably, the loading unit includes a second support frame, the outer surface of the second support frame is fixedly connected to a second servo motor, the output end of the second servo motor is fixedly connected to a screw rod, the outer surface of the screw rod is threadedly connected to a moving platform mechanism, and the end of the screw rod away from the servo motor is rotatably connected to a second support plate.
[0009] Preferably, the outer surface of the second support frame is fixedly connected to the outer surface of the fixture table, and the bottom of the second support plate is fixedly connected to the top of the base plate.
[0010] Preferably, the mobile platform mechanism includes a mobile plate, the inner wall of the mobile plate is fixedly connected with a telescopic rod 1, the top of the telescopic rod 1 is fixedly connected with a positioning column, the top of the mobile plate is fixedly connected with a round block, the top of the round block is fixedly connected with a supporting column, and the top of the supporting column is fixedly connected with a round ball.
[0011] Preferably, the inner wall of the movable plate is threadedly connected to the outer surface of the screw rod.
[0012] Preferably, the clamping unit includes a placement block, the outer surface of which is fixedly connected to a signal processor 2, the bottom of the placement block is symmetrically provided with limit holes, the inner wall of the placement block is provided with an inner cavity, the outer surface of the placement block is provided with a circular groove, the inner wall of the circular groove is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to a clamping plate, the inner wall of the clamping plate is fixedly connected to a pressure sensor, the outer surface of the inner cavity is fixedly connected to a support rod 2, and one end of the support rod 2 is fixedly connected to a wrapping block.
[0013] Preferably, the outer surface of the placement block is fixedly connected to an end of the support magnetic block away from the telescopic spring.
[0014] Preferably, the inner wall of the wrapping block is slidably connected to the outer surface of the sphere, and the outer surface of the limiting hole is slidably connected to the outer surface of the locking column.
[0015] The beneficial effects of the present invention are as follows:
[0016] 1. The present invention sets an adjustment mechanism, the pressure sensor can monitor the size of the clamping force in real time, the displacement sensor can accurately measure the tiny displacement changes of the workpiece during the processing, and transmit it to the signal processor one through the signal processor two, so that the power supply transmits the electric energy to the electromagnetic block through the wire one and the wire two, thereby causing the electromagnetic block to generate magnetic force. At the same time, the servo motor one will drive the rotating shaft to rotate, thereby driving the rotating arm and the electromagnetic block to rotate, so that the electromagnetic block moves to the end where the stress needs to be changed, and the electromagnetic iron will attract the supporting magnetic block at that end, thereby pulling the supporting magnetic block and compressing the telescopic spring, so that the clamping unit rotates, so that the processed workpiece returns to its normal position, so that the processing tool can smoothly process the workpiece.
[0017] 2. The present invention sets a moving platform mechanism, and the movement of the moving plate along the screw rod will drive the movement of the entire clamping unit. During this process, the telescopic rod is in an extended state, so that the positioning column is inserted into the limiting hole, so that the entire clamping unit will not move at all. When the adjustment mechanism starts to work, the telescopic rod will be retracted, and the adjustment mechanism will pull the placement block when it works, so that the wrapping block rotates about the center of the sphere, so that the entire clamping unit and the clamped workpiece can move appropriately. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the present invention.
[0019] Figure 2 It is a structural cross-sectional view of the present invention.
[0020] Figure 3 It is a structural schematic diagram of the fine-tuning unit of the present invention.
[0021] Figure 4 It is a structural schematic diagram of the adjustment mechanism of the present invention.
[0022] Figure 5 It is a structural schematic diagram of the loading unit of the present invention.
[0023] Figure 6 It is a structural schematic diagram of the mobile station mechanism of the present invention.
[0024] Figure 7 It is a structural schematic diagram of the clamping unit of the present invention.
[0025] Figure 8 It is a structural sectional view of the clamping unit of the present invention.
[0026] In the figure: 1, fixture table; 2, support plate 1; 3, positioning pin; 4, bottom plate; 5, loading unit; 6, clamping unit; 7, fine adjustment unit; 8, chip storage groove; 9, baffle; 10, collection box; 71, support rod 1; 72, power supply; 73, signal processor 1; 74, transmission column; 75, wire 1; 76, disc; 77, support frame 1; 78, servo motor 1; 79, adjustment mechanism; 791, fixing plate; 792, telescopic spring; 793, supporting magnetic block; 794, rotating shaft; 795, rotating arm; 796, rotating arm; 797, rotating arm; 798, rotating arm; 799, rotating arm; 791, rotating arm; 792, rotating arm; 793, rotating arm; 794, rotating arm; 795, rotating arm; 796, rotating arm; 797, rotating arm; 798, rotating arm; 799, rotating arm; 791 ... 96. Electromagnetic block; 797. Wire 2; 51. Support frame 2; 52. Servo motor 2; 53. Screw; 54. Support plate 2; 55. Moving platform mechanism; 551. Moving plate; 552. Telescopic rod 1; 553. Positioning column; 554. Round block; 555. Support column; 556. Round ball; 61. Placement block; 62. Signal processor 2; 63. Limiting hole; 64. Inner cavity; 65. Round groove; 66. Hydraulic rod; 67. Clamping plate; 68. Pressure sensor; 69. Support rod 2; 610. Wrapping block. DETAILED DESCRIPTION
[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
[0028] Example 1, using Figure 1-Figure 8 A lathe finishing jig according to one embodiment of the present invention is described below.
[0029] like Figure 1-Figure 2 As shown, a jig for lathe finishing of the present invention comprises a jig table 1, a support plate 2 is fixedly connected to the top of the jig table 1, a positioning pin 3 is fixedly connected to the outer surface of the support plate 2, a bottom plate 4 is fixedly connected to the outer surface of the jig table 1, a chip storage groove 8 is arranged on the top of the locking bottom plate 4, a collection box 10 is fixedly connected to the two ends of the chip storage groove 8, a baffle 9 is fixedly connected to the outer surface of the chip storage groove 8, a loading unit 5 is fixedly connected to the inner wall of the jig table 1, a clamping unit 6 is fixedly connected to the top of the loading unit 5, and a fine-tuning unit 7 is fixedly connected to the outer surface of the clamping unit 6;
[0030] When the present invention is working, the workpiece to be processed needs to be placed in the clamping unit 6 and fixed, and then the loading unit 5 will drive the clamping unit 6 and the workpiece to move to the tool, so that the workpiece is in a processing state. At this time, the fine-tuning unit 7 will make slight adjustments to the clamping unit 6 according to the force and position changes of the workpiece during processing, so that the workpiece can be processed smoothly.
[0031] like Figure 3 As shown, the fine-tuning unit 7 includes a support rod 71, a power supply 72 is fixedly connected to the top of the fixture table 1, a signal processor is fixedly connected to the outer surface of the power supply 72, a transmission column 74 is fixedly connected to the top of the power supply 72, a wire 75 is fixedly connected to the outer surface of the transmission column 74, a disc 76 is fixedly connected to the top of the support rod 71, a support frame 77 is fixedly connected to the outer surface of the disc 76, a servo motor 78 is fixedly connected to the outer surface of the support frame 77, and an adjustment mechanism 79 is fixedly connected to the side of the disc 76 away from the servo motor 78;
[0032] After the signal processor 1 73 receives the signal transmitted by the signal processor 2 62 , the power supply 72 transmits the electric energy to the electromagnetic block 796 through the wire 1 75 and the wire 2 797 , thereby causing the electromagnetic block 796 to generate magnetic force.
[0033] like Figure 4 As shown, the adjustment mechanism 79 includes a fixed plate 791, a side of the fixed plate 791 away from the disk 76 is fixedly connected to a telescopic spring 792, an end of the telescopic spring 792 away from the fixed plate 791 is fixedly connected to a supporting magnet 793, an output end of the servo motor 1 is fixedly connected to a rotating shaft 794, an outer surface of the rotating shaft 794 is fixedly connected to a rotating arm 795, an end of the rotating arm 795 away from the rotating shaft 794 is fixedly connected to an electromagnetic block 796, and an outer surface of the electromagnetic block 796 is fixedly connected to an electric wire 2 797.
[0034] At the same time, the servo motor 78 will drive the rotating shaft 794 to rotate, and then drive the rotating arm 795 and the electromagnetic block 796 to rotate, so that the electromagnetic block 796 moves to the end where the stress needs to be changed. The electromagnetic iron will attract the supporting magnetic block 793 at that end, thereby pulling the supporting magnetic block 793 and compressing the telescopic spring 792, so that the clamping unit 6 rotates, and the processed workpiece returns to its normal position, so that the processing tool can smoothly process the workpiece.
[0035] The outer surface of the fixing plate 791 is fixedly connected to the side of the disc 76 away from the servo motor 78.
[0036] The specific workflow is as follows:
[0037] During operation, the pressure sensor 68 can monitor the size of the clamping force in real time, and the displacement sensor can accurately measure the tiny displacement changes of the workpiece during the processing, and transmit it to the signal processor 1 73 through the signal processor 2 62, so that the power supply 72 transmits electrical energy to the electromagnetic block 796 through the wire 1 75 and the wire 2 797, thereby causing the electromagnetic block 796 to generate magnetic force. At the same time, the servo motor 1 78 will drive the rotating shaft 794 to rotate, and then drive the rotating arm 795 and the electromagnetic block 796 to rotate, so that the electromagnetic block 796 moves to the end where the stress needs to be changed. The electromagnetic iron will attract the supporting magnet 793 at that end, thereby pulling the supporting magnet 793 and compressing the telescopic spring 792, so that the clamping unit 6 rotates, so that the processed workpiece returns to its normal position, so that the processing tool can smoothly process the workpiece.
[0038] Embodiment 2, use Figure 1-Figure 8 A lathe finishing jig according to one embodiment of the present invention is described below.
[0039] like Figure 5 As shown in the figure, a jig for lathe finishing of the present invention is based on the first embodiment, and the loading unit 5 includes a support frame 51, the outer surface of the support frame 51 is fixedly connected to a servo motor 52, the output end of the servo motor 52 is fixedly connected to a screw rod 53, the outer surface of the screw rod 53 is threadedly connected to a moving platform mechanism 55, and the end of the screw rod 53 away from the servo motor is rotatably connected to a support plate 54.
[0040] The servo unit 2 drives the screw rod 53 to rotate, thereby controlling the movement of the moving platform mechanism 55, the overall clamping unit 6 and the adjustment unit.
[0041] The outer surface of the second support frame 51 is fixedly connected to the outer surface of the fixture table 1 , and the bottom of the second support plate 54 is fixedly connected to the top of the bottom plate 4 .
[0042] like Figure 6 As shown, the moving platform mechanism 55 includes a moving plate 551, the inner wall of the moving plate 551 is fixedly connected with a telescopic rod 552, the top of the telescopic rod 552 is fixedly connected with a positioning column 553, the top of the moving plate 551 is fixedly connected with a round block 554, the top of the round block 554 is fixedly connected with a supporting column 555, and the top of the supporting column 555 is fixedly connected with a round ball 556.
[0043] When the movable plate 551 moves along the screw rod 53, the entire clamping unit 6 will be driven to move. During this process, the telescopic rod 552 is in an extended state, so that the locking column 553 is inserted into the limiting hole 63, so that the entire clamping unit 6 will not move at all.
[0044] The inner wall of the moving plate 551 is threadedly connected to the outer surface of the screw rod 53 .
[0045] like Figure 7-Figure 8 As shown, the clamping unit 6 includes a placement block 61, the outer surface of the placement block 61 is fixedly connected to a signal processor 2 62, the bottom of the placement block 61 is symmetrically provided with limit holes 63, the inner wall of the placement block 61 is provided with an inner cavity 64, the outer surface of the placement block 61 is provided with a circular groove 65, the inner wall of the circular groove 65 is fixedly connected to a hydraulic rod 66, the output end of the hydraulic rod 66 is fixedly connected to a clamping plate 67, the inner wall of the clamping plate 67 is fixedly connected to a pressure sensor 68, the outer surface of the inner cavity 64 is fixedly connected to a support rod 2 69, and one end of the support rod 2 69 is fixedly connected to a wrapping block 610.
[0046] After the workpiece is placed in the circular groove 65, the hydraulic rod 66 will extend and the clamping plate 67 will fix the workpiece. Then, as the workpiece is processed, the pressure sensor 68 will monitor the clamping force in real time. When the clamping force changes, the pressure sensor 68 will transmit the information through the signal processor 2 62, so that the adjustment mechanism 79 starts to work.
[0047] When the adjustment mechanism 79 starts to work, the telescopic rod will be retracted, and the adjustment mechanism 79 will pull the placement block 61, so that the wrapping block 610 rotates about the center of the sphere 556, so that the overall clamping unit 6 and the clamped workpiece are properly moved.
[0048] The outer surface of the placement block 61 is fixedly connected to an end of the support magnetic block 793 away from the telescopic spring 792 .
[0049] The inner wall of the wrapping block 610 is slidably connected to the outer surface of the ball 556 , and the outer surface of the limiting hole 63 is slidably connected to the outer surface of the locking column 553 .
[0050] The specific workflow is as follows:
[0051] During operation, after the workpiece is placed into the circular groove 65, the hydraulic rod 66 will extend and the clamping plate 67 will fix the workpiece, and the servo unit 2 will drive the screw 53 to rotate, thereby controlling the movement of the movable platform mechanism 55 and the overall clamping unit 6 and the adjustment unit. As the workpiece is processed, the pressure sensor 68 will monitor the size of the clamping force in real time. When the clamping force changes, the pressure sensor 68 will transmit the information through the signal processor 2 62, so that the adjustment mechanism 79 starts to work. The movement of the movable plate 551 along the screw 53 will drive the overall clamping unit 6 to move. During this process, the telescopic rod 1 552 is in an extended state, so that the positioning column 553 is inserted into the limiting hole 63, so that the overall clamping unit 6 will not move at all. When the adjustment mechanism 79 starts to work, the telescopic rod will be retracted, and the adjustment mechanism 79 will pull the placement block 61, so that the wrapping block 610 rotates about the center of the sphere 556, so that the overall clamping unit 6 and the clamped workpiece move appropriately.
[0052] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A lathe finishing jig, comprising a jig table (1), characterized in that: The top of the jig table (1) is fixedly connected to a support plate (2), the outer surface of the support plate (2) is fixedly connected to a positioning pin (3), the outer surface of the jig table (1) is fixedly connected to a bottom plate (4), the top of the locking bottom plate (4) is provided with a chip storage groove (8), both ends of the chip storage groove (8) are fixedly connected to a collection box (10), the outer surface of the chip storage groove (8) is fixedly connected to a baffle (9), the inner wall of the jig table (1) is fixedly connected to a loading unit (5), the top of the loading unit (5) is fixedly connected to a clamping unit (6), and the outer surface of the clamping unit (6) is fixedly connected to a fine-tuning unit (7); The fine-tuning unit (7) comprises a support rod (71), a power source (72) is fixedly connected to the top of the fixture table (1), a signal processor is fixedly connected to the outer surface of the power source (72), a transmission column (74) is fixedly connected to the top of the power source (72), a wire (75) is fixedly connected to the outer surface of the transmission column (74), a disc (76) is fixedly connected to the top of the support rod (71), a support frame (77) is fixedly connected to the outer surface of the disc (76), a servo motor (78) is fixedly connected to the outer surface of the support frame (77), and an adjustment mechanism (79) is fixedly connected to the side of the disc (76) away from the servo motor (78); The adjustment mechanism (79) comprises a fixed plate (791), a side of the fixed plate (791) away from the disc (76) is fixedly connected to a telescopic spring (792), an end of the telescopic spring (792) away from the fixed plate (791) is fixedly connected to a supporting magnetic block (793), an output end of the servo motor 1 (78) is fixedly connected to a rotating shaft (794), an outer surface of the rotating shaft (794) is fixedly connected to a rotating arm (795), an end of the rotating arm (795) away from the rotating shaft (794) is fixedly connected to an electromagnetic block (796), and an outer surface of the electromagnetic block (796) is fixedly connected to a second wire (797).
2. The lathe finishing tool according to claim 1, characterized in that: The outer surface of the fixing plate (791) is fixedly connected to a side of the disc (76) away from the servo motor (78).
3. The lathe finishing tool according to claim 1, characterized in that: The loading unit (5) comprises a second support frame (51), the outer surface of the second support frame (51) is fixedly connected to a second servo motor (52), the output end of the second servo motor (52) is fixedly connected to a lead screw (53), the outer surface of the lead screw (53) is threadedly connected to a moving platform mechanism (55), and the end of the lead screw (53) away from the servo motor is rotatably connected to a second support plate (54).
4. The lathe finishing tool according to claim 3, characterized in that: The outer surface of the second support frame (51) is fixedly connected to the outer surface of the fixture table (1), and the bottom of the second support plate (54) is fixedly connected to the top of the bottom plate (4).
5. The lathe finishing tool according to claim 3, characterized in that: The mobile platform mechanism (55) comprises a mobile plate (551), the inner wall of the mobile plate (551) is fixedly connected to a telescopic rod (552), the top of the telescopic rod (552) is fixedly connected to a positioning column (553), the top of the mobile plate (551) is fixedly connected to a round block (554), the top of the round block (554) is fixedly connected to a supporting column (555), and the top of the supporting column (555) is fixedly connected to a round ball (556).
6. The lathe finishing tool according to claim 5, characterized in that: The inner wall of the movable plate (551) is threadedly connected to the outer surface of the screw rod (53).
7. The lathe finishing tool according to claim 6, characterized in that: The clamping unit (6) comprises a placement block (61), the outer surface of the placement block (61) is fixedly connected to a signal processor 2 (62), the bottom of the placement block (61) is symmetrically provided with a limit hole (63), the inner wall of the placement block (61) is provided with an inner cavity (64), the outer surface of the placement block (61) is provided with a circular groove (65), the inner wall of the circular groove (65) is fixedly connected to a hydraulic rod (66), the output end of the hydraulic rod (66) is fixedly connected to a clamping plate (67), the inner wall of the clamping plate (67) is fixedly connected to a pressure sensor (68), the outer surface of the inner cavity (64) is fixedly connected to a support rod 2 (69), and one end of the support rod 2 (69) is fixedly connected to a wrapping block (610).
8. The lathe finishing tool according to claim 7, characterized in that: The outer surface of the placement block (61) is fixedly connected to an end of the support magnetic block (793) away from the telescopic spring (792).
9. The lathe finishing tool according to claim 7, characterized in that: The inner wall of the wrapping block (610) is slidably connected to the outer surface of the sphere (556).
10. The lathe finishing tool according to claim 7, characterized in that: The outer surface of the limiting hole (63) is slidably connected to the outer surface of the locking column (553).