A kind of machine tool processing coating machine shaft body batch milling groove synchronous clamping device

Abstract

The present application relates to the technical field of slot milling, in particular to a machine tool machining coating machine shaft body batch slot milling synchronous clamping device, including base, the upper end of the base is fixedly connected with processing table, the side of the processing table is connected with sliding frame, the sliding frame is installed with sliding plate, the fixedly installed mounting plate is installed on the board of the sliding plate, the processing assembly is installed on the mounting plate; The upper surface of the processing table is fixedly installed with the base plate, one side of the upper end of the base plate is fixedly connected with the concave fixed plate, the first drive rod and the second drive rod are movably connected on the concave fixed plate. The present application is a special workpiece milling machine for high-end intelligent equipment manufacturing industry, which integrates milling moving mechanism and multi-station synchronous clamping structure, can place multiple coating roller assemblies at a time, relies on gear linkage and air pressure to realize synchronous force positioning of all workpieces, and avoids uneven clamping force and long shaft deformation caused by manual locking.

Description

Technical Field

[0001] This invention relates to the field of milling technology, specifically to a synchronous clamping device for batch milling of grooves on the shaft of a coating machine. Background Technology

[0002] The high-end intelligent equipment manufacturing industry continues to develop. Coating equipment, as a core component in lithium battery and thin film production, consists of coating machine shafts and rollers, which are typical long shaft special workpieces. During production, special workpiece milling machines are needed to mill grooves on the outer diameter of the shaft. The machined grooves serve as crucial structures for torque transmission and axial positioning; their dimensional accuracy and batch consistency directly determine the overall operational stability of the coating machine. Currently, the industry commonly uses CNC keyway milling machines and dedicated milling machines for milling coating machine shafts. The workpiece clamping method directly affects the final machining quality and production efficiency of the milling process.

[0003] When performing batch milling of coating machine shafts on existing milling machine tools, most use single-station fixtures to clamp and process each workpiece individually. Each shaft requires manual positioning and locking, which not only results in lengthy clamping auxiliary time but also easily leads to inconsistent clamping forces across shafts. For long coating machine shafts, the step-by-step locking method during multi-point clamping can easily induce shaft bending deformation, and repeated clamping of a single piece can cause positioning datum deviations, ultimately leading to poor dimensional consistency in the milled grooves of a batch of workpieces. Conventional milling machine tools lack an integrated multi-station synchronous equal-force clamping structure, making it difficult to simultaneously place multiple shafts and lock them synchronously with a unified datum. This fails to eliminate machining errors caused by multiple clamping and step-by-step clamping, making it difficult to meet the production demands of high-end intelligent equipment manufacturing industries for high-precision milling of coating machine shafts in large batches. Summary of the Invention

[0004] The purpose of this invention is to provide a synchronous clamping device for batch milling grooves on the shaft of a coating machine for machine tool processing, so as to solve the problem mentioned in the background art that existing milling machines cannot eliminate the processing errors caused by multiple clamping and step-by-step clamping.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a synchronous clamping device for batch milling grooves on the shaft of a coating machine, comprising a base, a processing table fixedly connected to the upper end of the base, a sliding frame connected to the side of the processing table, a sliding plate mounted on the sliding frame, an mounting plate fixedly mounted on the sliding plate, and a processing component mounted on the mounting plate; a base plate fixedly mounted on the upper surface of the processing table, a concave fixing plate fixedly connected to one side of the upper end of the base plate, a first driving rod and a second driving rod movably connected to the concave fixing plate, a plurality of first fixing blocks fixedly mounted on the shaft of the first driving rod along the axial direction, a plurality of second fixing blocks fixedly mounted on the shaft of the second driving rod along the axial direction, and an inclined plate fixedly mounted on each of the first fixing blocks and the second fixing blocks; a side plate fixedly connected to the upper end of the base plate, a pin block movably mounted on the side plate; a coating machine roller body supported on the inclined plate, and a coating machine shaft body fixedly connected to both ends of the coating machine roller body.

[0006] Furthermore, a first motor is fixedly installed on the edge of the base, and a first lead screw is fixedly connected to the output end of the first motor. A base plate is fixedly connected to the bottom of the sliding frame, and the center of the base plate is threadedly connected to the first lead screw. A first auxiliary rod penetrating the base plate is fixedly installed on the base. A second motor is fixedly installed on the side of the sliding frame, and a second lead screw is fixedly connected to the output end of the second motor. The sliding plate is threadedly connected to the second lead screw. A second auxiliary rod penetrating the sliding plate is fixedly installed on the sliding frame. A third motor is fixedly installed on the upper end of the mounting plate, and a third lead screw is fixedly connected to the output end of the third motor. The processing component is threadedly connected to the third lead screw. A fourth auxiliary rod penetrating the processing component is fixedly installed on the mounting plate.

[0007] Furthermore, a third driving unit is fixedly installed on the concave fixing plate, and a push plate is fixedly connected to the output end of the third driving unit.

[0008] Furthermore, a vertical plate is fixedly connected to the other side of the upper end of the substrate, a pressing roller is movably connected inside the plate body, a second driving unit is fixedly installed at the top of the vertical plate, the output end of the second driving unit is fixedly connected to the pressing roller, and a rotating roller is fixedly installed at the upper end of the substrate.

[0009] Furthermore, a first driving unit is fixedly mounted on the substrate, the output end of the first driving unit is fixedly connected to the first driving rod, a partition plate is fixedly mounted on the upper end of the substrate away from the first driving unit, an installation chamber is formed between the concave fixing plate and the substrate, a cover plate is provided on the installation chamber, an opening is opened on the second fixing block, and the first driving rod is movably inserted into the opening.

[0010] Furthermore, the first drive rod and the second drive rod are respectively provided with a first tooth groove and a second tooth groove at the ends away from the first drive unit, and a drive gear is rotatably connected to the upper end of the substrate near the partition plate, and the drive gear is meshed with the first tooth groove and the second tooth groove respectively.

[0011] Furthermore, a receiving chamber is provided inside the side plate, the ejector pin block is movably inserted into the receiving chamber, and a third spring is fixedly connected between the ejector pin block and the side wall of the receiving chamber.

[0012] Furthermore, a piston cylinder is fixedly installed inside the concave fixing plate, and a piston block is slidably connected inside the piston cylinder. A lever is fixedly installed on the body of the second drive rod, and the lever is fixedly connected to the piston block. The piston cylinder is connected to the receiving chamber through an air groove, which is formed inside the base plate.

[0013] Furthermore, a fixing cylinder is fixedly installed on the upper end of the substrate, and the fixing cylinder is located between the first fixing block and the second fixing block.

[0014] Furthermore, the fixed cylinder has a first movable chamber and a second movable chamber. A rod is movably inserted into the first movable chamber and the second movable chamber. A baffle is fixedly connected to the rod in the first movable chamber. A first spring is fixedly connected between the baffle and the bottom wall of the first movable chamber. The first spring is sleeved on the rod. A second spring is fixedly connected to the bottom of the rod in the second movable chamber. A pressing block is fixedly connected to the bottom end of the second spring. A pressure sensor is fixedly installed on the bottom wall of the second movable chamber corresponding to the pressing block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This machine tool features a batch milling groove synchronous clamping device for coating machine shafts. Through the first and second drive rods and drive gears, it achieves reverse synchronous movement. Combined with a push plate, piston cylinder, and air groove linkage ejector block, it synchronously clamps both ends of the workpiece. Multiple sets of inclined plates can synchronously clamp multiple coating machine rollers facing each other. All workpieces are synchronously and equally clamped, preventing issues such as inconsistent clamping force on individual workpieces or bending deformation of long shafts due to step-by-step clamping. The internal rod of the fixed cylinder, along with a pressure sensor, provides real-time feedback on the clamping status of each workpiece, ensuring complete uniformity of the positioning reference for batch workpieces, thereby improving dimensional consistency after milling.

[0016] 2. This machine tool features a batch milling groove synchronous clamping device for coating machine shafts. Through a rotating roller and an adaptive telescopic insert rod structure, after single-sided milling is completed, only the clamping inclined plates on both sides are released, while the pressing roller limits the workpiece. The rotating roller drives the workpiece to rotate 180 degrees in place, and the insert rod is inserted into the already processed groove to achieve precise mechanical positioning. There is no need to remove the entire workpiece and re-align and clamp it. The same set of positioning references is used to complete double-sided milling, avoiding symmetry errors caused by secondary clamping. At the same time, it eliminates the need for large indexing and rotating components, resulting in a smaller overall size of the equipment, which is suitable for the narrow processing space inside conventional milling machine tools. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the substrate structure in this invention. Figure 1 ; Figure 4 This is a schematic diagram of the substrate structure in this invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the installation room in this invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram of section A; Figure 7 This is a cross-sectional view of the substrate and the concave fixing plate in this invention. Figure 1 ; Figure 8 This is a cross-sectional view of the substrate and the concave fixing plate in this invention. Figure 2 ; Figure 9 For the present invention Figure 8 Enlarged structural diagram of part B.

[0018] In the attached diagram, the components represented by each number are as follows: 1. Base; 2. Processing table; 3. Sliding frame; 4. Base plate; 5. First auxiliary rod; 6. First motor; 7. First lead screw; 8. Sliding plate; 9. Second auxiliary rod; 10. Second motor; 11. Mounting plate; 12. Third motor; 13. Third lead screw; 14. Fourth auxiliary rod; 15. Processing assembly; 16. Base plate; 17. Concave fixing plate; 1701. Mounting chamber; 1702. Cover plate; 18. Side plate; 1801. Ejector pin block; 1802. Receiving chamber; 19. Coating machine roller body; 20. Coating machine shaft body; 21. First drive unit; 22. Vertical plate; 23. Second drive unit; 24. Pressing roller; 25. Rotating roller; 26. 27. Push plate; 28. Divider plate; 29. ​​First drive rod; 2901. First fixing block; 2902. First tooth groove; 30. Second drive rod; 3001. Second fixing block; 3002. Opening; 3003. Second tooth groove; 3004. Toggle rod; 31. Inclined plate; 32. Fixing cylinder; 3201. First movable chamber; 3202. Second movable chamber; 33. Insert rod; 34. Drive gear; 35. Baffle; 36. First spring; 37. Second spring; 38. Pressing block; 39. Pressure sensor; 40. Piston cylinder; 4001. Piston block; 41. Air groove; 42. Third spring; 43. Second lead screw. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: such as Figure 1 - Figure 9The illustrated synchronous clamping device for batch milling grooves on the shaft of a coating machine tool includes a base 1. A processing table 2 is fixedly connected to the upper end of the base 1. A sliding frame 3 is connected to the side of the processing table 2. A sliding plate 8 is mounted on the sliding frame 3. A mounting plate 11 is fixedly mounted on the body of the sliding plate 8. A processing component 15 is mounted on the mounting plate 11. A base plate 16 is fixedly mounted on the upper surface of the processing table 2. A concave fixing plate 17 is fixedly connected to one side of the upper end of the base plate 16. A first drive rod 29 and a second drive rod 29 are movably connected to the concave fixing plate 17. The drive rod 30 has multiple first fixing blocks 2901 fixedly installed along the axial direction on the shaft of the first drive rod 29, and multiple second fixing blocks 3001 fixedly installed along the axial direction on the shaft of the second drive rod 30. Each first fixing block 2901 and second fixing block 3001 is fixedly mounted with an inclined plate 31. The upper end of the base plate 16 is fixedly connected to a side plate 18, and a pin block 1801 is movably installed on the side plate 18. The inclined plate 31 supports the coating machine roller 19, and the two ends of the coating machine roller 19 are fixedly connected to the coating machine shaft 20.

[0021] In this invention, the entire device is a specialized processing equipment adapted for use in the high-end intelligent equipment manufacturing industry. Essentially, it is an integrated machine tool fixture for milling special workpieces. The entire set, including the base 1, processing table 2, sliding frame 3, and processing component 15, is integrated into a single unit, eliminating the need for a separate external milling machine. The equipment integrates milling processing and a multi-workpiece synchronous clamping structure, specifically designed for batch milling of long shaft special workpieces such as the coating machine roller 19 and coating machine shaft 20. The base 1 serves as the supporting foundation for the entire device, completely supporting the processing table 2. All processing and clamping related structures are concentrated on the surface of the processing table 2. The sliding frame 3 is installed on the side of the processing table 2, supporting the moving structure of the entire milling process. The sliding plate 8, mounting plate 11, and processing component 15 all rely on the sliding frame 3 to complete the forward, backward, left, right, and up / down three-axis movement, thereby achieving milling of the coating machine shaft 20 at different workstations. The base plate 16 is fixed on the processing table 2 and serves as the mounting base for the clamping and positioning structure of all workpieces. The concave fixing plate 17 is mounted above the base plate 16 and is used to arrange synchronous clamping transmission components such as the first drive rod 29 and the second drive rod 30. Two inclined plates 31 are respectively mounted on the first fixing block 2901 and the second fixing block 3001. The two inclined plates 31 correspond to each other and leave a space in the middle to accommodate the coating machine roller 19. The side plate 18 is arranged on the side of the base plate 16. The ejector pin block 1801 inside the side plate 18 can perform end clamping and limiting on one end of the coating machine shaft 20 from one end of the workpiece. The coating machine roller 19 is placed between the two inclined plates 31. The coating machine shaft 20 extending from both ends is the target part for milling. The outer wall of the coating machine roller 19 is the coating working surface and is not milled. Only the two ends of the coating machine shaft 20 have transmission grooves.

[0022] refer to Figure 1 - Figure 9A first motor 6 is fixedly installed on the edge of the base 1, and a first lead screw 7 is fixedly connected to the output end of the first motor 6. A base plate 4 is fixedly connected to the bottom of the sliding frame 3, and the center of the base plate 4 is threadedly connected to the first lead screw 7. A first auxiliary rod 5 penetrating the base plate 4 is fixedly installed on the base 1. A second motor 10 is fixedly installed on the side of the sliding frame 3, and a second lead screw 43 is fixedly connected to the output end of the second motor 10. A sliding plate 8 is threadedly connected to the second lead screw 43. A second auxiliary rod 9 penetrating the sliding plate 8 is fixedly installed on the sliding frame 3. A third motor 12 is fixedly installed on the upper end of the mounting plate 11, and a third lead screw 13 is fixedly connected to the output end of the third motor 12. The processing component 15 is connected to the third lead screw 13. Rod 13 is threadedly connected, and a fourth auxiliary rod 14 that penetrates the processing assembly 15 is fixedly installed on the mounting plate 11; a third drive unit 26 is fixedly installed on the concave fixing plate 17, and a push plate 27 is fixedly connected to the output end of the third drive unit 26; a vertical plate 22 is fixedly connected to the other side of the upper end of the base plate 16, a pressing roller 24 is movably connected inside the plate body of the vertical plate 22, a second drive unit 23 is fixedly installed at the top of the vertical plate 22, and the output end of the second drive unit 23 is fixedly connected to the pressing roller 24; a rotating roller 25 is fixedly installed at the upper end of the base plate 16; a first drive unit 21 is fixedly installed on the base plate 16, and the output end of the first drive unit 21 is fixedly connected to the first drive rod 29. A partition plate 28 is fixedly installed on the upper end of plate 16 away from the first drive unit 21. A mounting chamber 1701 is formed between the concave fixing plate 17 and the base plate 16. A cover plate 1702 is provided on the mounting chamber 1701. An opening 3002 is opened on the second fixing block 3001, and the first drive rod 29 is movably inserted into the opening 3002. The ends of the first drive rod 29 and the second drive rod 30 away from the first drive unit 21 are respectively provided with a first tooth groove 2902 and a second tooth groove 3003. A drive gear 34 is rotatably connected to the upper end of the base plate 16 near the partition plate 28. The drive gear 34 meshes with the first tooth groove 2902 and the second tooth groove 3003 respectively. Side plate 18 An accommodating chamber 1802 is provided inside, and a ejector pin block 1801 is movably inserted into the accommodating chamber 1802. A third spring 42 is fixedly connected between the ejector pin block 1801 and the side wall of the accommodating chamber 1802. A piston cylinder 40 is fixedly installed inside the concave fixing plate 17, and a piston block 4001 is slidably connected inside the piston cylinder 40. A lever 3004 is fixedly installed on the rod of the second drive rod 30, and the lever 3004 is fixedly connected to the piston block 4001. The piston cylinder 40 and the accommodating chamber 1802 are connected through an air groove 41, which is opened in the base plate 16. A fixing cylinder 32 is fixedly installed at the upper end of the base plate 16, and the fixing cylinder 32 is located between the first fixing block 2901 and the second fixing block 3001.The fixed cylinder 32 has a first movable chamber 3201 and a second movable chamber 3202. A rod 33 is movably inserted into each of the two chambers. A baffle 35 is fixedly connected to the rod 33 within the first movable chamber 3201. A first spring 36 is fixedly connected between the baffle 35 and the bottom wall of the first movable chamber 3201, and is sleeved on the rod 33. A second spring 37 is fixedly connected to the bottom of the rod 33 within the second movable chamber. A pressing block 38 is fixedly connected to the bottom end of the second spring 37. A pressure sensor 39 is fixedly installed on the bottom wall of the second movable chamber 3202 corresponding to the pressing block 38.

[0023] In this invention, the first motor 6, the first lead screw 7, the base plate 4, and the first auxiliary rod 5 together form the transmission structure for the sliding frame 3 to move back and forth. When the first motor 6 operates, it drives the first lead screw 7 to rotate synchronously. The base plate 4 follows the first lead screw 7 to move back and forth due to the threaded engagement. The first auxiliary rod 5 passes through the base plate 4, restricting the base plate 4 to move only along the axis of the first auxiliary rod 5, preventing left and right deviations. This ensures that the sliding frame 3 moves smoothly without shaking. The sliding frame 3 slides back and forth synchronously above the processing table 2 with the base plate 4, thereby adjusting the position of the processing component 15 relative to the workpiece. The second motor 10, the second lead screw 43, and the second auxiliary rod 9 control the left and right movement of the sliding plate 8. The second motor 10 outputs power to drive the second lead screw 43 to rotate. The sliding plate 8 moves laterally along the second lead screw 43 due to the threaded engagement. The second auxiliary rod 9 passes through the sliding plate 8, constraining the movement trajectory of the sliding plate 8 and preventing the sliding plate 8 from deviating. This drives the mounting plate 11 and the processing component 15 to adjust their positions synchronously left and right, corresponding to different rows of coating machine rollers 19 and coating machine shafts 20. The third motor 12, the third lead screw 13, and the fourth auxiliary rod 14 are responsible for the lifting and lowering of the processing component 15. The third motor 12 drives the third lead screw 13 to rotate. The processing component 15 is threadedly engaged with the third lead screw 13 to achieve up and down lifting. The fourth auxiliary rod 14 restricts the offset of the processing component 15 so that it does not tilt when the processing component 15 is lifted and lowered, thereby adjusting the processing height between the milling cutter and the coating machine shaft 20. The third drive unit 26 is equipped with a push plate 27, which is specifically used to align multiple coating machine rollers 19 and coating machine shafts 20 from the end of the workpiece, ensuring that the ends of all workpieces are aligned on the same baseline. The upright plate 22, the second drive unit 23, and the pressing roller 24 form an auxiliary limiting structure at the top of the workpiece. When the workpiece is flipped, the pressing roller 24 presses down on the coating machine shaft 20 to prevent the workpiece from jumping up and down when it rotates with the rotating roller 25. The rotating roller 25 is arranged on the surface of the substrate 16 and has its own independent drive unit. It can rotate autonomously and drive the coating machine rollers 19 placed above to rotate as a whole by relying on the friction of the roller surface, so as to achieve the in-situ flipping of the workpiece without having to remove the entire workpiece and re-clamp it.The first drive unit 21 serves as the power source for the entire synchronous clamping structure, outputting thrust to drive the first drive rod 29 to move linearly. The partition plate 28 separates multiple clamping stations. The mounting chamber 1701 is used to house transmission parts such as gears and piston cylinders 40. The cover plate 1702 covers the mounting chamber 1701 to prevent metal debris generated during processing from entering the internal transmission structure. The first tooth groove 2902, the second tooth groove 3003, and the drive gear 34 mesh with each other to achieve synchronous reverse movement of the first drive rod 29 and the second drive rod 30, ensuring that the inclined plates 31 on both sides clamp the coating machine roller 19 synchronously towards each other. The piston cylinder 40, piston block 4001, lever 3004, air groove 41, and receiving chamber 1 802, the ejector block 1801, and the third spring 42 form a pneumatic linkage clamping structure. When the second drive rod 30 moves, it pulls the lever 3004, which pulls the piston block 4001 to compress the air inside the piston cylinder 40. The compressed air flows through the air groove 41 into the receiving chamber 1802 inside the side plate 18. The air pressure pushes the ejector block 1801 outward. The ejector block 1801 presses against the coating machine shaft 20 on one side of the coating machine roller 19. The coating machine shaft 20 on the other side of the coating machine roller 19 is pressed by the push plate 27, thereby clamping the workpiece. The third spring 42 is stretched when the ejector block 1801 extends. After the clamping structure is released, the third spring 42 pulls the ejector block 1801 to reset and retract. The fixed cylinder 32 is equipped with a rod 33, a first spring 36, a second spring 37, a pressing block 38, and a pressure sensor 39. The top of the rod 33 is an arc surface. After the workpiece is placed in place, the bottom of the coating machine roller 19 presses down on the rod 33, and the rod 33 further retracts downward. The baffle 35 further compresses the first spring 36 (the first spring 36 is in a pre-compressed state in the initial state). The lower pressing block 38 squeezes the pressure sensor 39. If the feedback values ​​of multiple pressure sensors 39 are consistent, it can be determined that the placement height of multiple coating machine rollers 19 and coating machine shaft 20 is uniform and the clamping reference is completely consistent. (It should be noted that the first spring 36 is in a pre-compressed state in the initial state. After the workpiece is placed, the workpiece will further compress the first spring 36. However, when the two inclined plates 31 move towards each other to clamp the workpiece, the workpiece will be slightly lifted. At this time, the first spring 36 will initially return to its original position.)

[0024] Furthermore, in the coating roller processing workshop of the high-end intelligent equipment manufacturing industry, this equipment can be directly used as a machine tool for milling special workpieces and put into mass production. The equipment can simultaneously place multiple coating rollers 19, and rely on the linkage clamping structure to simultaneously complete the positioning and locking of all workpieces, eliminating the need for operators to manually lock each one, and greatly reducing the auxiliary time for workpiece clamping. The robotic arm sequentially places multiple sets of assembled coating machine rollers 19 and coating machine shafts 20 into the accommodating space between the inclined plates 31 of the first fixing block 2901 and the inclined plates 31 of the second fixing block 3001. After all the workpieces are placed, the third drive unit 26 is activated, pushing the push plate 27 forward to move horizontally. The end face of the push plate 27 is in contact with the end of the coating machine shaft 20 on one side of the coating machine roller 19, continuously pushing all the workpieces forward so that the ends of each coating machine roller 19 and coating machine shaft 20 are all aligned on the same plane, completing the axial alignment and positioning of the workpieces. After the workpieces are aligned, the second drive unit 23 is activated, pulling down the pressing roller 24. The pressing roller 24 presses against the upper outer wall of the coating machine shaft 20 on the other side of the coating machine roller 19, performing preliminary vertical limiting on the workpieces to prevent them from jumping up and down during subsequent clamping and rotation. After the workpiece is initially positioned, the first drive unit 21 pushes the first drive rod 29 forward. The first drive rod 29, along with the first fixed block 2901 and the inclined plate 31 on the first fixed block 2901, moves away from the first drive unit 21. The first tooth groove 2902 at the end of the first drive rod 29 synchronously drives the drive gear 34 to rotate. The drive gear 34 drives the second tooth groove 3003 to move by tooth meshing, pushing the second drive rod 30 to move synchronously towards the first drive unit 21. The second drive rod 30 drives the second fixed block 3001 and the inclined plate 31 on the second fixed block 3001 to move synchronously. The two inclined plates 31 move towards each other and clamp the workpiece from the left and right sides of the coating machine roller 19, achieving radial synchronous equal force clamping. During the movement of the second drive rod 30 toward the first drive unit 21, the lever 3004 fixed to the rod body of the second drive rod 30 synchronously pulls the piston block 4001 to slide inside the piston cylinder 40, compressing the air inside the piston cylinder 40. The high-pressure air enters the receiving chamber 1802 of the side plate 18 through the air groove 41 opened inside the base plate 16. The air pressure inside the receiving chamber 1802 increases, pushing the ejector pin block 1801 outward and pressing against the coating machine shaft 20 on one side of the coating machine roller 19. The coating machine shaft 20 on the other side of the coating machine roller 19 is pressed by the push plate 27, thereby clamping the workpiece. During the ejection process, the third spring 42 is continuously stretched.After the workpiece is clamped, the bottom outer wall of the coating machine roller 19 presses against the arc top of the insertion rod 33. The insertion rod 33 is subjected to downward pressure from the workpiece and retracts into the first movable chamber 3201 and the second movable chamber 3202 inside the fixed cylinder 32. The baffle 35 compresses the first spring 36 downward, and the second spring 37 at the lower end of the insertion rod 33 is simultaneously compressed. The pressing block 38 presses down against the pressure sensor 39. The equipment reads the feedback values ​​of all pressure sensors 39. All sensor values ​​remain consistent, indicating that the placement height and clamping force of multiple coating machine rollers 19 and coating machine shafts 20 are all consistent, and the positioning reference is unified, which meets the prerequisite for batch high-precision milling. After all workpieces are positioned and locked, the three-axis moving structure drives the processing component 15 to move above the coating machine shaft 20, and starts the milling operation, milling the transmission groove on the upper outer wall of each coating machine shaft 20 in sequence; after all the grooves on one side are milled, the groove on the reverse side of the coating machine shaft 20 needs to be milled. At this time, the first drive unit 21 retracts the first drive rod 29 and the second drive rod 30, the two inclined plates 31 release the coating machine roller 19, and the third drive unit 26 pulls the push plate 27 to retract, no longer pressing against the end of the coating machine shaft 20, only the pressing roller 24 remains pressing against the upper end of the coating machine shaft 20 to prevent the workpiece from jumping upward when rotating; the rotating roller 25 above the base plate 16 starts, relying on its own built-in independent drive unit to drive the roller to rotate. The friction between roller 25 and the outer wall of coating machine roller 19 causes the entire workpiece to rotate synchronously. The workpiece continues to rotate until the original milled groove position rotates to the bottom of the workpiece, aligning with the arc top of the insertion rod 33. The insertion rod 33 pops upward under the reset thrust of the first spring 36 and the second spring 37, and the arc top is stuck into the already processed groove, forming a mechanical hard limit. The workpiece cannot continue to rotate and stops precisely at the position of 180 degrees rotation. At this time, the first drive unit 21 and the third drive unit 26 are started again, and the workpiece is locked and fixed again by the inclined plate 31 and the push plate 27. The processing component 15 moves again to perform milling groove processing on the reverse side of the coating machine shaft 20. The same set of clamping references completes double-sided milling grooves without the need to disassemble the workpiece for secondary alignment.

[0025] It should be noted that the top of the insert rod 33 is machined into an arc surface, which helps the top of the insert rod 33 to initially enter the milling forming groove of the coating machine shaft 20. Furthermore, the arc surface of the top of the insert rod 33 precisely matches the inner contour of the milling forming groove of the coating machine shaft 20, with minimal gap between them. After being engaged, there is no lateral displacement, which can precisely lock the rotation angle of the workpiece. When the workpiece rotates 180 degrees and the milling forming groove is aligned with the top of the insert rod 33, the first spring 36 fully rebounds and extends, the insert rod 33 pops out completely upwards, and the arc head is engaged in the groove. At this time, the pressing block 38 is completely disengaged from the pressure sensor 39, and the sensor reading returns to zero. This serves as the detection signal for the insert rod 33 to be in position.

[0026] Working principle: The first motor 6 at the side of the base 1 starts running, and the output shaft of the first motor 6 drives the first lead screw 7 to rotate synchronously. The base plate 4 and the first lead screw 7 are threaded together, and the base plate 4 moves back and forth following the lead screw. The first auxiliary rod 5 passes through the base plate 4, restricting the base plate 4 to slide smoothly in a straight line. The base plate 4 synchronously drives the sliding frame 3 to move back and forth above the processing table 2, thereby adjusting the front and rear processing distance of the entire milling machine head. The second motor 10 on the side of the sliding frame 3 starts, and the second motor 10 drives the second lead screw 43 to rotate. The sliding plate 8 and the second lead screw 43 are threaded together to achieve lateral movement. The second auxiliary rod 9 passes through the sliding plate 8 and constrains the sliding plate. 8. The moving trajectory does not deviate. The sliding plate 8 synchronously drives the mounting plate 11 and the processing component 15 to switch the processing position left and right. The third motor 12 above the mounting plate 11 starts and drives the third lead screw 13 to rotate. The processing component 15 and the third lead screw 13 are threaded together to complete the lifting action. The fourth auxiliary rod 14 passes through the processing component 15 to ensure that the lifting process of the processing component 15 is stable and does not tilt. Relying on the cooperation of the three transmission structures of the first motor 6, the second motor 10 and the third motor 12, the processing component 15 can complete the all-round spatial movement in front and back, left and right, and up and down, adapting to the milling of the coating machine shaft 20 with different positions and different heights.

[0027] The robotic arm grasps multiple sets of coating machine rollers 19 and coating machine shafts 20, and places them sequentially into the receiving grooves formed by the inclined plates 31 on the first fixed block 2901 and the inclined plates 31 on the second fixed block 3001. After all the workpieces are placed in place, the third drive unit 26 pushes the push plate 27 forward. The push plate 27 presses against the ends of all the coating machine shafts 20 and continues to push, so that the ends of all the workpieces are aligned to the same plane. After the workpieces are aligned, the second drive unit 23 above the upright plate 22 pulls down the pressing roller 24. The pressing roller 24 presses the upper end of the coating machine shaft 20, completing the initial vertical positioning of the workpieces.

[0028] Subsequently, the first drive unit 21 on the substrate 16 pushes forward the first drive rod 29. The first drive rod 29, along with the first fixing block 2901 and the inclined plate 31 on the first fixing block 2901, moves away from the first drive unit 21. The first tooth groove 2902 at the end of the first drive rod 29 meshes with the drive gear 34 and rotates. The drive gear 34 meshes with the second tooth groove 3003, pulling the second drive rod 30 in the opposite direction to move closer to the first drive unit 21. The second drive rod 30 drives the second fixing block 3001 and the inclined plate 31 on the second fixing block 3001 to move inward synchronously. The inclined plates 31 on both sides move inward. 1. The coating machine roller 19 is clamped by opposing compression; while the second drive rod 30 moves inward, the rod body lever 3004 pulls the piston block 4001 to compress the air inside the piston cylinder 40. The compressed air enters the receiving chamber 1802 of the side plate 18 through the air groove 41. The air pressure pushes outward the ejector pin block 1801. The ejector pin block 1801 presses against the coating machine shaft 20 on one side of the coating machine roller 19. The coating machine shaft 20 on the other side of the coating machine roller 19 is pressed by the push plate 27, thereby clamping the workpiece. The third spring 42 is stretched as the ejector pin block 1801 extends, realizing synchronous multi-directional locking of the workpiece in the radial and axial directions.

[0029] During the workpiece clamping process, the two inclined plates 31 form a V-shaped support structure. When clamping towards each other, the coating machine roller 19 is slightly raised along the inclined surface, the downward pressure load on the insertion rod 33 at the bottom of the coating machine roller 19 is reduced, the first spring 36 in the pre-compressed state rebounds slightly, and the pressure of the pressing block 38 on the pressure sensor 39 decreases synchronously. The equipment synchronously reads the feedback data of all pressure sensors 39. If the pressure change trend and final stable value of multiple sets of sensors are consistent, it can be determined that all coating machine rollers 19 and coating machine shafts 20 are clamped in place, and the positioning reference of each workpiece is unified, thus meeting the prerequisite for batch high-precision milling. The three-axis transmission structure drives the processing component 15 to move above the coating machine shaft 20, and sequentially completes the single-sided upper milling.

[0030] After all single-sided milling is completed, the first drive unit 21 retracts the first drive rod 29 and the second drive rod 30, the inclined plate 31 releases the coating machine roller 19, the third drive unit 26 pulls the push plate 27 to retract, leaving only the pressing roller 24 pressing the upper end of the coating machine shaft 20, the rotating roller 25 on the base plate 16 starts to rotate, and the coating machine roller 19 rotates as a whole by friction; when the workpiece continues to rotate to the 180-degree position, the pre-processed groove rotates to the bottom of the workpiece, aligns with the top of the insert rod 33, the first spring 36 and the second spring 37 reset and push the insert rod 33 upward, the arc top of the insert rod 33 is inserted into the groove, forming a mechanical limit lock on the workpiece, and the workpiece no longer continues to rotate; the first drive unit 21 and the third drive unit 26 are restarted to lock the workpiece again, the processing component 15 moves to the position below the workpiece, and the reverse milling of the coating machine shaft 20 is completed.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A synchronous clamping device for batch milling grooves on the shaft of a coating machine for machine tool processing, comprising a base, characterized in that: A processing table is fixedly connected to the upper end of the base, a sliding frame is connected to the side of the processing table, a sliding plate is installed on the sliding frame, an mounting plate is fixedly installed on the sliding plate, and a processing component is installed on the mounting plate. A base plate is fixedly installed on the upper surface of the processing table. A concave fixing plate is fixedly connected to one side of the upper end of the base plate. A first driving rod and a second driving rod are movably connected to the concave fixing plate. Multiple first fixing blocks are fixedly installed on the shaft of the first driving rod along the axial direction. Multiple second fixing blocks are fixedly installed on the shaft of the second driving rod along the axial direction. An inclined plate is fixedly installed on each of the first fixing blocks and the second fixing blocks. A side plate is fixedly connected to the upper end of the substrate, and a pin block is movably mounted on the side plate; The inclined plate supports the coating machine roller, and the two ends of the coating machine roller are fixedly connected to the coating machine shaft.

2. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 1, characterized in that: A first motor is fixedly installed at the edge of the base, and a first lead screw is fixedly connected to the output end of the first motor. A base plate is fixedly connected to the bottom of the sliding frame, and the center of the base plate is threadedly connected to the first lead screw. A first auxiliary rod penetrating the base plate is fixedly installed on the base. A second motor is fixedly installed at the side of the sliding frame, and a second lead screw is fixedly connected to the output end of the second motor. The sliding plate is threadedly connected to the second lead screw. A second auxiliary rod penetrating the sliding plate is fixedly installed on the sliding frame. A third motor is fixedly installed at the upper end of the mounting plate, and a third lead screw is fixedly connected to the output end of the third motor. The processing component is threadedly connected to the third lead screw. A fourth auxiliary rod penetrating the processing component is fixedly installed on the mounting plate.

3. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 1, characterized in that: A third driving unit is fixedly installed on the concave fixing plate, and a push plate is fixedly connected to the output end of the third driving unit.

4. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 1, characterized in that: A vertical plate is fixedly connected to the other side of the upper end of the substrate. A pressing roller is movably connected inside the body of the vertical plate. A second driving unit is fixedly installed at the top of the vertical plate. The output end of the second driving unit is fixedly connected to the pressing roller. A rotating roller is fixedly installed at the upper end of the substrate.

5. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 1, characterized in that: A first driving unit is fixedly mounted on the substrate. The output end of the first driving unit is fixedly connected to a first driving rod. A partition plate is fixedly mounted on the upper end of the substrate away from the first driving unit. A mounting chamber is formed between the concave fixing plate and the substrate. A cover plate is provided on the mounting chamber. An opening is provided on the second fixing block. The first driving rod is movably inserted into the opening.

6. The synchronous clamping device for batch milling grooves on the shaft of a coating machine for machine tool processing according to claim 5, characterized in that: The first drive rod and the second drive rod have a first toothed groove and a second toothed groove respectively at the ends away from the first drive unit. A drive gear is rotatably connected to the upper end of the substrate near the partition plate. The drive gear is meshed with the first toothed groove and the second toothed groove respectively.

7. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 1, characterized in that: The side plate has a receiving chamber, the ejector pin block is movably inserted into the receiving chamber, and a third spring is fixedly connected between the ejector pin block and the side wall of the receiving chamber.

8. The synchronous clamping device for batch milling grooves on the shaft of a coating machine as described in claim 7, characterized in that: A piston cylinder is fixedly installed inside the concave fixing plate. A piston block is slidably connected inside the piston cylinder. A lever is fixedly installed on the body of the second drive rod. The lever is fixedly connected to the piston block. The piston cylinder is connected to the receiving chamber through an air groove, which is formed inside the base plate.

9. A batch milling groove synchronous clamping device for coating machine shafts according to claim 1, characterized in that: A fixing cylinder is fixedly installed on the upper end of the substrate, and the fixing cylinder is located between the first fixing block and the second fixing block.

10. A batch milling groove synchronous clamping device for the shaft of a coating machine for machine tool processing according to claim 9, characterized in that: The fixed cylinder has a first movable chamber and a second movable chamber. A rod is movably inserted into the first movable chamber and the second movable chamber. A baffle is fixedly connected to the rod in the first movable chamber. A first spring is fixedly connected between the baffle and the bottom wall of the first movable chamber. The first spring is sleeved on the rod. A second spring is fixedly connected to the bottom of the rod in the second movable chamber. A pressing block is fixedly connected to the bottom end of the second spring. A pressure sensor is fixedly installed on the bottom wall of the second movable chamber corresponding to the pressing block.

Images