Self-adaptable double-clamping tooling for turning and milling combined machine tool machining

Abstract

The present application relates to turning and milling combined machining technical field, specifically to a self-adaptive adjustable double-clamping tooling for turning and milling combined machine tool machining, including base, digital display control panel, rotating transposition assembly for realizing workpiece transposition machining and two groups of symmetrical clamping toolings distributed on both sides of the rotating transposition assembly; the present application can realize automatic feeding, transposition and machining process, the feeding assembly cooperates with the second cylinder and the feeding motor, and can feed the workpieces in the feeding box one by one to the feeding assembly, the feeding assembly realizes accurate pushing of the workpieces to the clamping tooling through the third electric push rod and the second linear driving structure, and manual feeding is not needed; the two groups of symmetrical clamping toolings cooperate with the rotating transposition assembly, can realize parallel operation mode of one group machining and one group feeding, and in the feeding process, the negative pressure cleaning assembly and the diameter gauge respectively complete cleaning and precision detection of the clamping tooling, greatly shorten the machining cycle and improve the batch workpiece machining efficiency.

Description

Technical Field

[0001] This invention relates to the field of mill-turn machining technology, and more specifically to a double-clamping fixture for mill-turn machining on an adaptively adjustable mill-turn machine tool. Background Technology

[0002] In the field of milling and turning machine tool processing, tooling fixtures are key equipment to ensure the accuracy and efficiency of workpiece processing. Existing technologies, such as the double-clamp tooling for milling and turning machine tool processing disclosed in CN120134029A, mainly include a first track, a mounting plate, a suction cup type tooling clamp, a second track, and a sliding seat. The position of the tooling clamp is adjusted through the sliding engagement of the tracks to adapt to different workpiece processing requirements.

[0003] However, this type of traditional double-clamp tooling has obvious limitations in practical applications. When completing the workpiece processing, it is necessary to wait for the workpiece to be clamped and cleaned, loaded and clamped, and the clamping accuracy to be checked. Frequent manual intervention is required for loading and tooling adjustment, which not only increases labor costs, but also easily affects processing efficiency due to human operation errors. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptively adjustable double-clamping fixture for milling and turning machine tools in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention provides a double-clamping fixture for machining on a milling and turning machine tool with adaptive adjustment, including a base, a digital display control panel, a rotary transposition component for realizing workpiece transposition machining, and two sets of clamping fixtures symmetrically distributed on both sides of the rotary transposition component.

[0007] The rotary transposition assembly is mounted on the base, and both sets of clamping fixtures are movably mounted on the rotary transposition assembly.

[0008] The base is provided with a partition structure between the two sets of clamping fixtures to separate the processing area and the loading area. The base in the loading area is provided with a feeding component for feeding the clamping fixtures. Above the feeding component is a loading box structure for storing the workpieces to be processed. The bottom side of the loading box structure is provided with a feeding component for feeding the workpieces in the loading box structure to the feeding component.

[0009] The feeding assembly is equipped with a negative pressure cleaning component for cleaning machining debris from the clamping fixture and a diameter measuring instrument for detecting the machining dimensions of the workpiece.

[0010] Furthermore, the rotary transposition assembly includes a transposition table, on the upper side of which a rotary platform is rotatably mounted. The transposition table contains a rotary motor for driving the rotary platform to rotate. The rotary platform is provided with two sets of first linear drive structures for driving the movement of two clamping fixtures respectively. The output end of the digital display control panel is electrically connected to the input end of the rotary motor.

[0011] Furthermore, a partition plate is provided between the transposition stage and the rotating platform. The partition plate is fixedly mounted on the base by a fixed bracket. The transposition stage has several telescopic channels. The upper end of each telescopic channel is open, and a positioning post is slidably mounted at the opening. A first cylinder is provided in the telescopic channel to drive the positioning post to slide within the telescopic channel. The lower side of the rotating platform has positioning holes corresponding to the positioning posts. The inner end face of each positioning hole is provided with a first pressure sensor for contact detection with the end of the positioning post. The partition plate has through holes for the positioning posts to pass through. The output end of the digital display control panel is electrically connected to the input end of the first cylinder, and the output end of the first pressure sensor is electrically connected to the input end of the digital display control panel.

[0012] Furthermore, the clamping fixture includes a clamping base, which is mounted on the output slider of the first linear drive structure. A servo motor is mounted on the clamping base, and a turntable is fixedly connected to the output shaft end of the servo motor. A three-jaw chuck is fixedly mounted on the turntable, and a workpiece insertion hole is opened in the center of the three-jaw chuck. The output end of the digital display control panel is electrically connected to the input end of the servo motor.

[0013] Furthermore, a first electric push rod is provided in the workpiece insertion hole, and a second pressure sensor is provided at the push rod head end of the first electric push rod for detecting contact with the end of the workpiece. The output end of the digital display control panel is electrically connected to the input end of the first electric push rod, and the output end of the second pressure sensor is electrically connected to the input end of the digital display control panel.

[0014] Furthermore, the partition structure includes a partition panel, which is fixedly mounted on a base. A lifting groove is provided inside the partition panel, and a lifting slide plate is slidably mounted inside the lifting groove. Opening grooves are provided on both sides of the partition panel, and lifting sliders that are fixedly connected to the lifting slide plate are slidably mounted inside the opening grooves. Second electric push rods for driving the lifting sliders to slide are provided on both sides of the partition panel. The output end of the digital display control panel is electrically connected to the input end of the second electric push rods.

[0015] Furthermore, the feeding box structure includes a box body with openings on the top and bottom sides. The box body is fixedly mounted on the partition plate by a hanger. Side baffles are provided on both sides of the box body. A third electric push rod is provided on the box body for adjusting the distance between the two side baffles. The output end of the digital display control panel is electrically connected to the input end of the third electric push rod.

[0016] Furthermore, the feeding assembly is provided in two sets and is respectively located on both sides of the bottom opening of the box. The feeding assembly includes a second cylinder, which is fixedly mounted on the box. The push rod head of the second cylinder is fixedly connected to a connecting frame. A dial wheel frame is fixedly mounted on the connecting frame. A feeding motor is fixedly mounted on the dial wheel frame. A plurality of feeding plates evenly distributed around its axis are fixedly connected to the output shaft end of the feeding motor. The output end of the digital display control panel is electrically connected to the input ends of the second cylinder and the feeding motor.

[0017] Furthermore, the feeding assembly includes a feeding platform, which is fixedly mounted on a base. A lifting platform is provided above the feeding platform. A fourth electric push rod for driving the lifting platform to rise and fall is fixedly installed inside the feeding platform. Several guide rods are evenly distributed around the fourth electric push rod on its outer side. The upper end of the guide rod is fixedly connected to the lower side of the lifting platform, and the lower end of the guide rod is slidably connected to a lifting sliding hole opened at a corresponding position on the feeding platform. A second linear drive structure is fixedly installed on the lifting platform. A pusher block is fixedly connected to the output end of the second linear drive structure. A placement platform is fixedly installed on the upper side of the lifting platform. A positioning groove is opened on the placement platform. The output end of the digital display control panel is electrically connected to the input end of the second linear drive structure and the fourth electric push rod.

[0018] Furthermore, the negative pressure cleaning assembly includes a third cylinder, which is fixedly mounted on the lifting platform. Two cleaning negative pressure suction tubes are slidably arranged inside the lifting platform. One end of each cleaning negative pressure suction tube extends out of the lifting platform and has an adsorption port. The other end of each cleaning negative pressure suction tube extends out of the lifting platform and is connected to a negative pressure pipe connector. The push rod head of the third cylinder is fixedly connected to the negative pressure pipe connector to drive the cleaning negative pressure suction tubes to slide within the lifting platform. The output end of the digital display control panel is electrically connected to the input end of the third cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention enables automated feeding, repositioning, and processing. The feeding component, in conjunction with the feeding motor via the second cylinder, feeds the workpieces one by one from the feeding box to the feeding component. The feeding component, through the third electric push rod and the second linear drive structure, accurately pushes the workpieces to the clamping fixture, eliminating the need for manual feeding. Two sets of symmetrical clamping fixtures, in conjunction with the rotary repositioning component, enable a parallel operation mode of processing and feeding. During the feeding process, the negative pressure cleaning component and the diameter measuring instrument clean the clamping fixture and perform accuracy testing, significantly shortening the processing cycle and improving the processing efficiency of batch workpieces.

[0021] 2. This invention achieves adaptive adjustment through multi-component collaboration. The third electric push rod of the feeding box structure can adjust the spacing of the side baffles to adapt to workpieces with different diameters or cross-sectional dimensions. The three-jaw chuck of the clamping fixture can achieve automatic centering and clamping of cylindrical workpieces. In conjunction with the first electric push rod in the workpiece insertion hole, it pushes the second pressure sensor to abut against the end of the workpiece. This can detect the positioning accuracy and adjust the clamping position according to the axial length of the workpiece, avoiding workpiece deformation due to excessive clamping or affecting processing accuracy due to excessive looseness. This greatly improves the adaptability and clamping stability of workpieces of different specifications.

[0022] 3. In the rotary positioning assembly, the first cylinder drives the positioning column to cooperate with the positioning hole of the rotary platform, and the first pressure sensor detects the abutment pressure to lock the position of the rotary platform and prevent tooling from shifting during the processing.

[0023] 4. The partition structure separates the processing area from the loading area by a lifting slide plate, preventing processing debris and coolant from contaminating the workpiece to be processed, while avoiding mutual interference between the loading operation and the processing flow, thus balancing processing accuracy and operational safety. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is the present invention. Figure 1 A schematic diagram of the left-side view structure;

[0027] Figure 3 This is the present invention. Figure 1 A schematic diagram of the three-dimensional structure;

[0028] Figure 4 This is the present invention. Figure 3 A magnified schematic diagram of the structure at point C;

[0029] Figure 5 This is the present invention. Figure 1 A schematic diagram of the AA cross-sectional structure;

[0030] Figure 6 This is the present invention. Figure 5 A magnified schematic diagram of the structure at point D;

[0031] Figure 7 This is the present invention. Figure 2 A schematic diagram of the BB cross-sectional structure;

[0032] Figure 8 This is the present invention. Figure 7 A magnified schematic diagram of the structure at point E;

[0033] Figure 9 This is the present invention. Figure 7 A magnified schematic diagram of the structure at point F;

[0034] Figure 10 This is a schematic diagram of the feeding assembly of the present invention in the first direction;

[0035] Figure 11 This is a schematic diagram of the second direction structure of the feeding assembly of the present invention.

[0036] The reference numerals in the attached drawings are explained as follows: 1. Rotary transposition assembly; 101. Transposition table; 102. Rotary platform; 103. Fixed bracket; 104. Partition plate; 105. Through hole; 106. Telescopic channel; 107. First cylinder; 108. Positioning column; 109. First pressure sensor; 110. First linear drive structure; 111. Rotary motor; 2. Clamping fixture; 201. Clamping base; 202. Servo motor; 203. Turntable; 204. Three-jaw chuck; 205. Workpiece insertion hole; 206. First electric push rod; 207. Second pressure sensor; 3. Partition structure; 301. Partition plate; 302. Opening slide; 303. Second electric push rod; 304. Lifting slider; 305. Lifting... 306. Slide plate; 4. Lifting slide rail; 5. Feeding box structure; 6. Box body; 7. Hanger; 8. Side baffle; 9. Third electric push rod; 10. Feeding assembly; 11. Second cylinder; 12. Connecting frame; 13. Dial wheel frame; 14. Feeding motor; 15. Feeding plate; 16. Feeding assembly; 17. Feeding platform; 18. Lifting platform; 19. Second linear drive structure; 200. Pushing block; 200. Guide rod; 200. Fourth electric push rod; 21. Material placement platform; 22. Positioning groove; 23. Negative pressure cleaning assembly; 24. Third cylinder; 25. Negative pressure pipe connector; 36. Cleaning negative pressure suction pipe; 27. Base; 28. Digital display control panel; 29. ​​Diameter gauge. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0038] See Figures 1-11 As shown, this invention provides an adaptively adjustable double-clamping fixture for milling and turning machine tools, including a base 8, a digital display control panel 9, a rotary positioning component 1 for workpiece repositioning, and two sets of clamping fixtures 2 symmetrically distributed on both sides of the rotary positioning component 1. The rotary positioning component 1 is mounted on the base 8, and both sets of clamping fixtures 2 are movably mounted on the rotary positioning component 1. A partition structure 3 for separating the machining area and the loading area is provided on the base 8 between the two sets of clamping fixtures 2. A feeding component 6 for feeding materials to the clamping fixtures 2 is provided on the base 8 in the loading area. A loading box structure 4 for storing workpieces to be processed is provided above the feeding component 6. A feeding component 5 for feeding workpieces from the loading box structure 4 to the feeding component 6 is provided on the bottom side of the loading box structure 4. The feeding component 6 is equipped with a negative pressure cleaning component 7 for cleaning machining debris from the clamping fixtures 2 and a diameter gauge 10 for detecting the machining dimensions of the workpiece. The diameter gauge 10 is a dial indicator, micrometer, or laser diameter gauge.

[0039] See instruction manual attached Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the rotary transposition assembly 1 includes a transposition table 101, a rotary platform 102 is rotatably mounted on the upper side of the transposition table 101, a rotary motor 111 is provided inside the transposition table 101 for driving the rotary platform 102 to rotate, and two sets of first linear drive structures 110 are provided on the rotary platform 102 for driving the movement of two clamping fixtures 2 respectively. The output end of the digital display control panel 9 is electrically connected to the input end of the rotary motor 111. A partition plate 104 is provided between the transposition table 101 and the rotating platform 102. The partition plate 104 is fixedly mounted on the base 8 by a fixed bracket 103. Several telescopic channels 106 are provided in the transposition table 101. The upper end of the telescopic channel 106 is open and a positioning post 108 is slidably provided at the opening. A first cylinder 107 is provided in the telescopic channel 106 to drive the positioning post 108 to slide in the telescopic channel 106. The lower side of the rotating platform 102 is provided with positioning holes corresponding to the positioning posts 108. A first pressure sensor 109 is provided on the inner end face of the positioning hole for contact detection with the end of the positioning post 108. A through hole 105 is provided on the partition plate 104 for passing through the positioning post 108. The output end of the digital display control panel 9 is electrically connected to the input end of the first cylinder 107. The output end of the first pressure sensor 109 is electrically connected to the input end of the digital display control panel 9. In practical applications, the rotary transposition component 1 can realize the transposition and position adjustment of the workpiece between the processing area and the feeding area in the processing flow. The rotary motor 111 drives the rotary platform 102 to rotate on the transposition table 101, which can drive the two sets of clamping fixtures 2 to adjust their angles synchronously. The first linear drive structure 110 adopts existing technology, such as ball bearings, lead screws and slides, which can drive the two sets of clamping fixtures 2 to move along the surface of the rotary platform 102 respectively, realizing the adjustment of the distance between the clamping fixtures 2 and the feeding component 6 and the processing tool, adapting to the processing requirements of workpieces of different lengths.

[0040] In addition, the first cylinder 107 drives the positioning column 108 through the through hole 105 of the partition plate 104 and cooperates with the positioning hole on the lower side of the rotating platform 102. The first pressure sensor 109 detects the contact pressure between the positioning column and the positioning hole to ensure that the position of the rotating platform 102 is accurately locked after rotation, and avoids the workpiece processing size deviation caused by the offset of the rotating platform during the processing.

[0041] See instruction manual attached Figure 1 , Figure 7 and Figure 9As shown, the clamping fixture 2 includes a clamping base 201, which is mounted on the output slider of the first linear drive structure 110. A servo motor 202 is mounted on the clamping base 201, and a turntable 203 is fixedly connected to the output shaft of the servo motor 202. A three-jaw chuck 204 is fixedly mounted on the turntable 203, and a workpiece insertion hole 205 is provided at the center of the three-jaw chuck 204. The output of the digital display control panel 9 is electrically connected to the input of the servo motor 202. A first electric push rod 206 is provided inside the workpiece insertion hole 205, and a second pressure sensor 207 for detecting contact with the end of the workpiece is provided at the push rod head of the first electric push rod 206. The output of the digital display control panel 9 is electrically connected to the input of the first electric push rod 206, and the output of the second pressure sensor 207 is electrically connected to the input of the digital display control panel 9. The clamping fixture 2 is used to stably clamp and rotate the workpiece. The first electric push rod 206 in the workpiece insertion hole 205 pushes the second pressure sensor 207 to abut against the end of the workpiece. Firstly, it can detect the axial positioning accuracy of the workpiece during installation. Secondly, it can monitor the axial force state of the workpiece in real time during processing to prevent workpiece deformation due to excessive clamping or processing accuracy affected by excessive clamping. Thirdly, the position of the second pressure sensor 207 can be adjusted by the first electric push rod 206 to adapt to the positioning and installation of workpieces with different axial lengths.

[0042] See instruction manual attached Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the partition structure 3 includes a partition plate 301, which is fixedly mounted on the base 8. A lifting slide groove 306 is provided in the partition plate 301, and a lifting slide plate 305 is slidably mounted up and down in the lifting slide groove 306. Opening slide grooves 302 are provided on both sides of the partition plate 301, and lifting sliders 304, which are fixedly connected to the lifting slide plate 305, are slidably mounted in the opening slide grooves 302. Second electric push rods 303 are provided on both sides of the partition plate 301 to drive the lifting sliders 304 to slide. The output end of the digital display control panel 9 is electrically connected to the input end of the second electric push rods 303. In practical applications, the partition structure 3 is used to separate the processing area from the loading area, preventing debris and coolant generated during processing from contaminating the workpiece to be processed in the loading area, and preventing the loading operation and processing flow from interfering with each other. Specifically, the second electric push rod 303 drives the lifting slider 304 to slide along the open slide groove 302, causing the lifting slide plate 305 to move up and down in the lifting slide groove 306: During processing, the lifting slide plate 305 descends to the closed state, completely separating the two areas; when the workpiece is changed, the lifting slide plate 305 rises to the open state, facilitating the rotation of the rotation component 1 to rotate the clamping fixture 2, avoiding interference.

[0043] See instruction manual attached Figure 1 , Figure 3 and Figure 4 As shown, the feeding box structure 4 includes a box body 401 with openings on the top and bottom sides. The box body 401 is fixedly mounted on the partition plate 301 by a hanger 402. Side baffles 403 are provided on both sides of the box body 401. A third electric push rod 404 is provided on the box body 401 for adjusting the distance between the two side baffles 403. The output end of the digital display control panel 9 is electrically connected to the input end of the third electric push rod 404. The third electric push rod 404 can drive the side baffles 403 on both sides to move laterally along the box body 401, adjusting the distance between the side baffles to accommodate workpieces of different diameters or cross-sectional sizes, preventing the workpieces from shaking or tilting inside the box, and ensuring that the feeding assembly 5 can stably feed the workpieces.

[0044] See instruction manual attached Figure 3 and Figure 4 As shown, the feeding assembly 5 has two sets and is respectively located on both sides of the bottom opening of the box body 401. The feeding assembly 5 includes a second cylinder 501, which is fixedly mounted on the box body 401. A connecting frame 502 is fixedly connected to the push rod head of the second cylinder 501. A dial wheel frame 503 is fixedly mounted on the connecting frame 502. A feeding motor 504 is fixedly mounted on the dial wheel frame 503. A plurality of feeding plates 505 evenly distributed around the axis of the feeding motor 504 are fixedly connected to the output shaft end of the feeding motor 504. The output end of the digital display control panel 9 is electrically connected to the input end of the second cylinder 501 and the feeding motor 504. Through the above-mentioned specific structural design, the second cylinder 501 pushes the connecting frame 502 to drive the dial wheel frame 503 to move up and down, adjusting the contact height between the dial plate 505 and the workpiece to adapt to workpieces of different heights; the dial motor 504 drives the dial plate 505 to rotate, and the workpieces to be processed at the bottom opening of the feeding box 401 are fed one by one to the feeding platform 607 of the feeding component 6 through the evenly distributed dial plates, and are positioned by the positioning groove 608. The cross-sectional shape of the positioning groove 608 is V-shaped, realizing automated feeding, replacing manual feeding, improving feeding efficiency and avoiding manual operation errors.

[0045] See instruction manual attached Figure 3 , Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, the feeding assembly 6 includes a feeding platform 601, which is fixedly mounted on the base 8. A lifting platform 602 is provided above the feeding platform 601. A fourth electric push rod 606 for driving the lifting platform 602 to rise and fall is fixedly installed inside the feeding platform 601. Several guide rods 605 are evenly distributed around the fourth electric push rod 606. The upper end of the guide rod 605 is fixedly connected to the lower side of the lifting platform 602, and the lower end of the guide rod 605 is slidably connected to the lifting sliding hole opened at the corresponding position on the feeding platform 601. A second linear drive structure 603 is fixedly installed on the lifting platform 602. A pusher block 604 is fixedly connected to the output end of the second linear drive structure 603. A placement platform 607 is fixedly installed on the upper side of the lifting platform 602. A positioning groove 608 is opened on the placement platform 607. The output end of the digital display control panel 9 is electrically connected to the input end of the second linear drive structure 603 and the fourth electric push rod 606. In practical applications, the fourth electric push rod 606 drives the lifting platform 602 to move up and down, and the guide rod 605 ensures that the lifting process is smooth and without deviation. The height of the placement platform 607 can be adjusted according to the height of the clamping fixture 2 and the size of the workpiece so that the workpiece is aligned with the workpiece insertion hole 205 of the three-jaw chuck 204. The positioning groove 608 on the placement platform 607 can pre-position the workpiece to prevent it from shifting during the conveying process. The second linear drive structure 603 drives the pusher block 604 to move along the placement platform 607, accurately pushing the workpiece in the positioning groove 608 into the three-jaw chuck 204 of the clamping fixture 2 to complete the automated feeding. The second linear drive structure 603 adopts existing technologies, such as ball bearings, lead screws and slides, which are well known to those skilled in the art.

[0046] The negative pressure cleaning component 7 includes a third cylinder 701, which is fixedly mounted on the lifting platform 602. Two cleaning negative pressure suction tubes 703 are slidably disposed inside the lifting platform 602. One end of each cleaning negative pressure suction tube 703 extends out of the lifting platform 602 and has an adsorption port. The other end of each cleaning negative pressure suction tube 703 extends out of the lifting platform 602 and is connected to a negative pressure pipe connector 702. The push rod head of the third cylinder 701 is fixedly connected to the negative pressure pipe connector 702 to drive the cleaning negative pressure suction tubes 703 to slide within the lifting platform 602. The output of the digital display control panel 9 is electrically connected to the input of the third cylinder 701. The negative pressure cleaning component 7 is used to clean metal chips and cutting fluid residue generated during milling and turning, preventing chips from adhering to the workpiece surface or clamping fixture 2 and affecting machining accuracy. The negative pressure pipe connector 702 is connected to an external negative pressure device to provide negative pressure suction for the cleaning negative pressure suction pipe 703. The third cylinder 701 drives the cleaning negative pressure suction pipe 703 to slide within the lifting platform 602. In conjunction with the third electric push rod 606 in the feeding component 6, the height of the cleaning negative pressure suction pipe 703 is adjusted, thereby adjusting the position distance between the suction port and the clamping fixture 2. During or after machining, the suction port moves into the workpiece insertion hole 205. In conjunction with the servo motor 202 driving the three-jaw chuck 204 to rotate, the negative pressure suction draws the chips into the suction pipe and discharges them, keeping the clamping position clean.

[0047] Working principle and technical effects of the present invention:

[0048] Before use, according to the size of the workpiece to be processed, the third electric push rod 404 of the feeding box structure 4 is adjusted through the digital display control panel 9 to adjust the distance between the two side baffles 403. The fourth electric push rod 606 adjusts the height position of the feeding seat 601 so that the workpiece axis is matched with the workpiece insertion hole 205. The first electric push rod 206 adjusts the contact position of the second pressure sensor 207 with the workpiece shaft end, thereby matching the workpiece.

[0049] The workpiece to be processed is then placed into the box 401. The second cylinder 501 of the feeding assembly 5 pushes the feed wheel frame 503 to adjust the height. The feeding motor 504 drives the feeding plate 505 to rotate, feeding the workpieces at the bottom of the box 401 one by one to the feeding platform 607 of the feeding assembly 6, and the positioning groove 608 achieves pre-positioning. The fourth electric push rod 606 of the feeding assembly 6 drives the lifting platform 602 to rise and fall. Combined with the stabilizing effect of the guide rod 605, the workpiece is aligned with the three-jaw chuck 204 of the clamping fixture 2. Then, the second linear drive structure 603 pushes the pusher block 604 to push the workpiece into the workpiece insertion hole 205 of the three-jaw chuck 204. At the same time, the second pressure sensor 207 in the workpiece insertion hole 205 abuts against the end of the workpiece to detect the positioning accuracy and feed it back to the digital display control panel 9. The three-jaw chuck 204 clamps the workpiece synchronously. The diameter gauge 10 works with the feeding assembly 6 to detect in real time whether the workpiece is accurately positioned.

[0050] The second electric push rod 303 of the partition structure 3 drives the lifting slider 304 to raise the lifting slide plate 305. The rotary motor 111 of the rotary transfer component 1 drives the rotary platform 102 to rotate, and rotates the clamping fixture 2 containing the workpiece to the processing area. Then, the second electric push rod 303 of the partition structure 3 drives the lifting slider 304 to lower the lifting slide plate 305 to separate the processing area and the loading area. The first cylinder 107 drives the positioning column 108 to pass through the through hole 105 of the partition plate 104 and cooperate with the positioning hole of the rotary platform 102. The first pressure sensor 109 detects the abutment pressure to lock the position of the rotary platform 102. The first linear drive structure 110 drives the clamping fixture 2 to move to the processing position.

[0051] During processing, the servo motor 202 of the clamping fixture 2 drives the turntable 203 to rotate the three-jaw chuck 204 and the workpiece, and completes the processing in conjunction with external milling cutters. After processing, the rotation and positioning component 1 rotates the clamping fixture 2 to the loading area, where an external robot can automatically remove the processed workpiece to complete the unloading. The robot is existing technology and well known to those skilled in the art, but is not shown in the accompanying drawings of this specification. Then, with the cooperation of the feeding component 6, the third cylinder 701 of the negative pressure cleaning component 7 drives the cleaning negative pressure suction pipe 703 to move to the three-jaw chuck 204. The negative pressure pipe connector 702 is connected to an external negative pressure device to absorb processing debris. Subsequently, the three-jaw chuck 204 releases the workpiece, completing one processing cycle. The above steps can be repeated for batch processing, and the two sets of clamping fixtures 2 can alternately perform loading and processing to improve efficiency.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A double-clamping fixture for machining on a milling-turning machine tool with adaptive adjustment, characterized in that: It includes a base (8), a digital display control panel (9), a rotary transposition assembly (1) for realizing workpiece transposition processing, and two sets of clamping fixtures (2) symmetrically distributed on both sides of the rotary transposition assembly (1). The rotary transposition assembly (1) is mounted on the base (8), and both sets of clamping fixtures (2) are movably mounted on the rotary transposition assembly (1); The base (8) is provided with a partition structure (3) between the two sets of clamping fixtures (2) for separating the processing area and the loading area. The base (8) in the loading area is provided with a feeding component (6) for feeding the clamping fixtures (2). Above the feeding component (6) is a loading box structure (4) for storing the workpieces to be processed. The bottom side of the loading box structure (4) is provided with a feeding component (5) for feeding the workpieces in the loading box structure (4) to the feeding component (6). The feeding assembly (6) is equipped with a negative pressure cleaning assembly (7) for cleaning the machining debris from the clamping fixture (2) and a diameter measuring instrument (10) for detecting the machining dimensions of the workpiece. The rotary transposition assembly (1) includes a transposition table (101), a rotary platform (102) is rotatably provided on the upper side of the transposition table (101), a rotary motor (111) is provided inside the transposition table (101) for driving the rotary platform (102) to rotate, and two sets of first linear drive structures (110) are provided on the rotary platform (102) for driving the movement of two clamping fixtures (2) respectively. The clamping fixture (2) includes a clamping platform (201), which is mounted on the output slider of the first linear drive structure (110). A servo motor (202) is mounted on the clamping platform (201), and a turntable (203) is fixedly connected to the output shaft end of the servo motor (202). A three-jaw chuck (204) is fixedly mounted on the turntable (203). A workpiece insertion hole (205) is opened in the center of the three-jaw chuck (204), and a first electric push rod (206) is provided in the workpiece insertion hole (205). A second pressure sensor (207) for contact detection with the end of the workpiece is provided at the push rod head of the first electric push rod (206). The partition structure (3) includes a partition panel (301), which is fixedly mounted on the base (8); The feeding box structure (4) includes a box body (401) with openings on the upper and lower sides. The box body (401) is fixedly mounted on the partition plate (301) by a hanger (402). Side baffles (403) are provided on both sides of the box body (401). A third electric push rod (404) is provided on the box body (401) for adjusting the distance between the two side baffles (403).

2. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The output of the digital display control panel (9) is electrically connected to the input of the rotary motor (111).

3. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: A partition plate (104) is provided between the transposition platform (101) and the rotating platform (102). The partition plate (104) is fixedly mounted on the base (8) by a fixed bracket (103). The transposition platform (101) has several telescopic channels (106) inside. The upper end of each telescopic channel (106) is open, and a positioning post (108) is slidably mounted at the opening. A first cylinder (107) is provided inside the telescopic channel (106) to drive the positioning post (108) to slide within the telescopic channel (106). The rotating platform (102) has a positioning hole on its lower side that corresponds to the positioning post (108). The inner end face of the positioning hole is provided with a first pressure sensor (109) for contact detection with the end of the positioning post (108). The partition plate (104) has a through hole (105) for passing through the positioning post (108). The output end of the digital display control panel (9) is electrically connected to the input end of the first cylinder (107). The output end of the first pressure sensor (109) is electrically connected to the input end of the digital display control panel (9).

4. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The output of the digital display control panel (9) is electrically connected to the input of the servo motor (202).

5. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The output end of the digital display control panel (9) is electrically connected to the input end of the first electric push rod (206), and the output end of the second pressure sensor (207) is electrically connected to the input end of the digital display control panel (9).

6. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The partition plate (301) is provided with a lifting slide groove (306), and a lifting slide plate (305) is provided to slide up and down in the lifting slide groove (306). The partition plate (301) is provided with open slide grooves (302) on both sides, and a lifting slider (304) is provided to slide in the open slide groove (302) and is fixedly connected to the lifting slide plate (305). The partition plate (301) is provided with a second electric push rod (303) on both sides for driving the lifting slider (304) to slide. The output end of the digital display control panel (9) is electrically connected to the input end of the second electric push rod (303).

7. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The output of the digital display control panel (9) is electrically connected to the input of the third electric push rod (404).

8. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 7, characterized in that: The feeding assembly (5) has two sets and is respectively located on both sides of the bottom opening of the box body (401). The feeding assembly (5) includes a second cylinder (501). The second cylinder (501) is fixedly mounted on the box body (401). The push rod head of the second cylinder (501) is fixedly connected to a connecting frame (502). A dial frame (503) is fixedly mounted on the connecting frame (502). A feeding motor (504) is fixedly mounted on the dial frame (503). The output shaft end of the feeding motor (504) is fixedly connected to a plurality of feeding plates (505) evenly distributed around its axis. The output end of the digital display control panel (9) is electrically connected to the input end of the second cylinder (501) and the feeding motor (504).

9. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 1, characterized in that: The feeding assembly (6) includes a feeding platform (601), which is fixedly mounted on the base (8). A lifting platform (602) is provided above the feeding platform (601). A fourth electric push rod (606) for driving the lifting platform (602) to rise and fall is fixedly installed inside the feeding platform (601). A plurality of guide rods (605) are evenly distributed around the fourth electric push rod (606). The upper end of the guide rod (605) is fixedly connected to the lower side of the lifting platform (602), and the lower end of the guide rod (605) is fixedly connected to the lower side of the lifting platform (602). The material is slidably connected to the lifting slide hole opened at the corresponding position of the feeding platform (601). A second linear drive structure (603) is fixedly installed on the lifting platform (602). A pusher block (604) is fixedly connected to the output end of the second linear drive structure (603). A material placement platform (607) is fixedly installed on the upper side of the lifting platform (602). A positioning groove (608) is opened on the material placement platform (607). The output end of the digital display control panel (9) is electrically connected to the input end of the second linear drive structure (603) and the fourth electric push rod (606).

10. The adaptively adjustable double-clamping fixture for milling and turning machine tools according to claim 9, characterized in that: The negative pressure cleaning assembly (7) includes a third cylinder (701), which is fixedly mounted on a lifting platform (602). Two cleaning negative pressure suction tubes (703) are slidably disposed inside the lifting platform (602). One end of each cleaning negative pressure suction tube (703) extends out of the lifting platform (602) and has an adsorption port. The other end of each cleaning negative pressure suction tube (703) extends out of the lifting platform (602) and is connected to a negative pressure pipe connector (702). The push rod head of the third cylinder (701) is fixedly connected to the negative pressure pipe connector (702) to drive the cleaning negative pressure suction tube (703) to slide within the lifting platform (602). The output end of the digital display control panel (9) is electrically connected to the input end of the third cylinder (701).

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