Five-axis machining center part sorting and conveying device

Abstract

The present application relates to the technical field of machining, and discloses a five-axis machining center part sorting and conveying device. The device is directly integrated on a rotating table of a cradle machining platform of a machining center, and comprises core components such as a stator valve seat, a rotor integrated valve body, a rotary indexing tool and a hydraulic clamp. Two independent sorting and collecting cavities are arranged in the stator valve seat, the rotor integrated valve body is driven by the rotating table, and a central hydraulic cylinder and a circumferential distribution cylinder are integrated in the rotor integrated valve body. The rotary indexing tool comprises an annular array of multiple positioning holes for clamping workpieces. An integrated hydraulic control system cooperates with a main hydraulic cylinder, a boss and a pilot disc to realize synchronous clamping of all workpieces or selective release of specific workstations. The device further comprises a contact type trigger probe for detecting key dimensions of the workpieces on the machine, and feeding data to a numerical control system to form a full-automatic quality closed loop of'machining-detection-repair-sorting', thereby improving production and sorting efficiency.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a parts sorting and conveying device for a five-axis machining center. Background Technology

[0002] Five-axis machining centers, as the core of high-end manufacturing equipment, are highly favored for their ability to efficiently and precisely machine complex spatial curved surfaces in a single setup. In particular, cradle-type five-axis machining centers, with their worktables (cradle platforms) having two rotary axes, can position the workpiece at any angle in space, greatly reducing the number of setups and improving machining accuracy and efficiency.

[0003] With the deepening of the concept of intelligent manufacturing, the manufacturing process not only requires high machining accuracy, but also places higher demands on the automation and intelligence of post-processing quality inspection and material sorting. Currently, the sorting and transportation of parts processed on a five-axis machining center mainly relies on the following methods: Manual sorting: Operators manually unload parts from the worktable and inspect and sort them based on experience or with the aid of external measuring tools. This method is labor-intensive, inefficient, and highly susceptible to misjudgment due to human error. More importantly, it completely fails to realize the potential of automated continuous production in five-axis machining centers, becoming a bottleneck restricting overall efficiency improvement.

[0004] External independent sorting equipment: Sorting units consisting of industrial robots, conveyor belts, and dedicated inspection stations are configured outside the machining center. After the workpieces are processed, they are removed from the worktable by robots or manually and moved to the independent unit for inspection and sorting. Although this method achieves automation, it has significant drawbacks: First, the workpieces must leave the machining station, inevitably introducing secondary clamping errors, which can be fatal for ultra-high precision parts; second, the independent sorting units occupy a large space, are complex, costly, and difficult to match with the cycle time of the machining center.

[0005] Simple online ejection mechanisms: In some designs, cylinder-driven pushers are placed near the processing area to push the processed parts into a collection box. However, this method is limited in function, usually only able to "discharge" and not "sort" (such as distinguishing between qualified and unqualified products), and is difficult to adapt to the flexible production needs of multiple varieties and small batches.

[0006] In summary, existing technologies present a prominent contradiction: either maintaining accuracy sacrifices automation efficiency (relying on manual labor), or automation sacrifices accuracy and increases system complexity and cost (using external, independent equipment). There is a lack of an integrated solution that can be deeply integrated into a five-axis machining center, automatically completing machining, in-machine inspection, and intelligent sorting while maintaining high precision in a single clamping operation. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a five-axis machining center parts sorting and conveying device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A parts sorting and conveying device for a five-axis machining center, integrated on the rotary table of the cradle machining platform of the machining center, characterized in that it comprises: The stator valve seat is fixedly installed on the cradle processing platform and has two independent sorting and collection chambers inside. The rotor integrated valve body is driven by the rotary table. The rotor integrated valve body is equipped with a central hydraulic cylinder and multiple circumferential distribution cylinders arranged in a ring array around it. The rotary indexing fixture has a ring structure and is coaxially fixedly connected to the rotor integrated valve body. It is rotatably fitted onto the outside of the stator valve seat and has multiple positioning holes for clamping workpieces arranged in a ring in the radial direction. Multiple hydraulic clamps are arranged in a ring array within the rotor integrated valve body, and the telescopic ends of each hydraulic clamp extend into the corresponding positioning holes. Integrated hydraulic control system, including: a. A main hydraulic cylinder is provided at the end of the stator valve seat. The telescopic end of the main hydraulic cylinder extends and pushes the piston rod of the central hydraulic cylinder to inject hydraulic oil in the central hydraulic cylinder into each of the hydraulic clamps to control the clamping of the hydraulic clamps. b. Two bosses with different phase angles are provided at the telescopic end of the main hydraulic cylinder; c. When the rotor integrated valve body rotates to a specific indexing angle, the main hydraulic cylinder pushes the piston rod of the corresponding circumferential distribution cylinder through a certain boss, thereby controlling the oil circuit of the target circumferential distribution cylinder, so that the hydraulic clamp of the corresponding positioning hole moves independently and releases the clamping of the hydraulic clamp.

[0009] Preferably, it also includes a contact-type trigger probe, which can be gripped by the spindle of the machining center and used to measure the critical dimensions of the workpiece within the positioning hole.

[0010] Preferably, the inlets of the two independent sorting and collecting chambers are both located on the outer circular surface of the stator valve seat. After the rotary indexing fixture rotates at different angles, the positioning hole can connect with the inlet of the sorting and collecting chamber. The end face of the stator valve seat has two operating windows, which are respectively connected to the two sorting and collecting chambers. Both operating windows are tightly fitted with protective covers to isolate most of the chips and coolant in the processing area, ensuring the cleanliness of the inside of the sorting and collecting chamber.

[0011] Preferably, the telescopic end of the main hydraulic cylinder extends to the side of the stator valve seat near the rotor integrated valve body. A pilot plate is fixedly installed on the telescopic end of the main hydraulic cylinder. Both bosses are fixed on the pilot plate. The phase angle of the two bosses corresponds to the inlet position of the sorting and collecting cavity, so that after the rotary indexing fixture rotates at different angles, it can sort the workpieces into different sorting and collecting cavities respectively.

[0012] The two sorting and collecting chambers, respectively corresponding to the qualified product collecting chamber and the unqualified product collecting chamber, provide storage space for sorting.

[0013] Preferably, the hydraulic clamp includes a clamping block, a driving piston, a transmission rod, and a spring. A driving hydraulic chamber is provided inside the rotor integrated valve body. The driving piston is slidably installed in the driving hydraulic chamber. One end of the transmission rod is fixedly connected to the driving piston, and the other end of the transmission rod is throttle connected to the clamping block. The spring abuts against the clamping block, so that the end of the clamping block extends into the positioning hole, thereby realizing the function of clamping and positioning the workpiece in the positioning hole.

[0014] Preferably, the rotor integrated valve body is provided with a first hydraulic channel, the two ends of the first hydraulic channel are respectively connected to the central hydraulic cylinder and the rodless chamber of the drive hydraulic chamber, and a first check valve is provided in the first hydraulic channel; The rotor integrated valve body is provided with a second hydraulic channel, which connects the rod chamber of the drive hydraulic chamber, the rodless chamber of the circumferential distribution cylinder and the rod chamber of the central hydraulic cylinder, and a second check valve is provided in the second hydraulic channel located between the circumferential distribution cylinder and the central hydraulic cylinder. The rotor integrated valve body is provided with a third hydraulic channel, the two ends of which are respectively connected to the central hydraulic cylinder and the rodless chamber of the drive hydraulic chamber. The third hydraulic channel is provided with a pressure relief valve. The two ends of the fourth hydraulic channel are respectively connected to the rod chamber of the central hydraulic cylinder and the rod chamber of the drive hydraulic chamber, realizing a "one cylinder, two controls" hydraulic system, which meets the usage requirements of hydraulic clamps for clamping and releasing workpieces.

[0015] The present invention has the following beneficial effects: 1. The parts sorting and conveying device proposed in this invention is directly integrated into the cradle platform of a five-axis machining center, enabling workpieces to undergo multi-angle machining, in-machine inspection, and automatic sorting sequentially after a single clamping. This "in-situ" operation mode fundamentally eliminates secondary clamping errors caused by moving workpieces to external inspection tables or sorting equipment, greatly ensuring the machining quality, especially for high-precision parts. Simultaneously, it compresses multiple production stages into a single clamping cycle, significantly reducing non-machining time and improving overall production efficiency.

[0016] 2. The parts sorting and conveying device proposed in this invention uses contact-triggered probes for in-machine inspection and feeds the measurement data back to the CNC system in real time. This invention constructs a complete quality closed loop of "processing-inspection-decision-sorting". The system can automatically make sorting judgments based on the measured data, not only achieving proactive compensation for tool wear, but also ensuring the consistency of outgoing products. All inspection data can be recorded, providing strong data support and traceability for the production process, thereby improving the overall level of production quality management.

[0017] 3. The parts sorting and conveying device proposed in this invention, by setting up a multi-station rotary indexing fixture, meets the generation requirements of multi-station processing and switching of workpiece processing angles. After the workpiece is processed, the cradle platform precisely rotates the specific workpiece to the detection station or the release station for different sorting targets (qualified / unqualified), providing a structural basis for directional and accurate sorting based on in-machine detection results.

[0018] 4. The parts sorting and conveying device proposed in this invention utilizes a single main hydraulic cylinder to achieve synchronous clamping of all workpieces by controlling the central hydraulic cylinder. Furthermore, it employs a boss on the pilot plate and a circumferential distribution cylinder to selectively release the fixtures at specific workstations. This highly integrated hydraulic control system achieves complex sequential control logic with a simple mechanical structure, ensuring accurate and reliable operation and guaranteeing at the hardware level that qualified and unqualified products will never be mixed up. The system boasts a high degree of automation, significantly reducing reliance on worker skills and the risk of operational errors. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the parts sorting and conveying device proposed in this invention; Figure 2 This is a side sectional view of the parts sorting and conveying device proposed in this invention; Figure 3 This is an exploded view of the stator valve seat and rotor integrated valve body proposed in this invention. Figure 1 ; Figure 4 This is an exploded view of the stator valve seat and rotor integrated valve body proposed in this invention. Figure 2 ; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 6 This is a schematic diagram of the orthographic structure of the rotor integrated valve body proposed in this invention; Figure 7 This is a partially enlarged side section diagram of the rotor integrated valve body proposed in this invention. Figure 1 ; Figure 8 This is a partially enlarged side section diagram of the rotor integrated valve body proposed in this invention. Figure 2 ; Figure 9 This is a schematic diagram showing the clockwise and counterclockwise rotation of the rotor integrated valve body proposed in this invention.

[0020] In the diagram: 1. Stator valve seat; 2. Rotor integrated valve body; 3. Central hydraulic cylinder; 4. Circumferential distribution cylinder; 5. Rotary indexing fixture; 6. Positioning hole; 7. Hydraulic clamp; 8. Main hydraulic cylinder; 9. Boss; 10. Contact trigger probe; 11. Sorting and collecting chamber; 12. Operating window; 13. Protective cover; 14. Pilot plate; 15. Clamping block; 16. Drive piston; 17. Transmission rod; 18. Spring; 19. Drive hydraulic chamber; 20. First hydraulic channel; 21. First check valve; 22. Second hydraulic channel; 23. Second check valve; 24. Third hydraulic channel; 25. Pressure relief valve; 26. Cradle processing platform; 27. Direct drive motor; 28. Fourth hydraulic channel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Reference Figure 1 , Figure 2 A five-axis machining center parts sorting and conveying device is integrated into the rotary table of the cradle machining platform 26 of the machining center. The cradle machining platform 26 is equipped with a direct drive motor 27 that drives the rotary table to rotate. The device includes: The stator valve seat 1 is fixedly installed on the cradle processing platform 26. It contains two independent sorting and collection chambers 11, corresponding to the qualified product collection chamber and the unqualified product collection chamber, respectively. See details... Figure 9 ; The rotor-integrated valve body 2 is driven by a rotary table. Inside the rotor-integrated valve body 2 is a central hydraulic cylinder 3 and multiple circumferential distribution cylinders 4 arranged in a ring array around it. See details... Figure 3 ; Rotary indexing fixture 5, reference Figure 3 , Figure 4 It has a ring structure, is coaxially fixedly connected to the rotor integrated valve body 2, and is rotatably fitted onto the outside of the stator valve seat 1. It has multiple positioning holes 6 for clamping workpieces arranged in a ring in the radial direction. Multiple hydraulic clamps 7, reference Figure 3 , Figure 4 Multiple hydraulic clamps 7 are arranged in a ring array inside the rotor integrated valve body 2, and the telescopic ends of each hydraulic clamp 7 extend into the corresponding positioning holes 6. Integrated hydraulic control system, including: a. The main hydraulic cylinder 8 is located at the end of the stator valve seat 1. The telescopic end of the main hydraulic cylinder 8 extends and pushes the piston rod of the central hydraulic cylinder 3 to move, injecting the hydraulic oil in the central hydraulic cylinder 3 into each hydraulic clamp 7, and controlling the clamping of the hydraulic clamp 7. b. Two bosses 9 with different phase angles are set at the extension and retraction ends of the main hydraulic cylinder 8; c. When the rotor integrated valve body 2 rotates to a specific indexing angle, such as Figure 9 As shown, the rotor integrated valve body 2 rotates 30° clockwise or counterclockwise, and the main hydraulic cylinder 8 pushes the piston rod of the corresponding circumferential distribution cylinder 4 through a certain boss 9, thereby controlling the oil circuit of the target circumferential distribution cylinder 4, so that the hydraulic clamp 7 of the corresponding positioning hole 6 can move independently and release the clamping of the hydraulic clamp 7.

[0024] For details, please refer to Figure 3 , Figure 9 The inlets of the two independent sorting and collecting chambers 11 are both located on the outer circular surface of the stator valve seat 1. After the rotary indexing fixture 5 rotates at different angles, the positioning hole 6 can connect with the inlet of the sorting and collecting chamber 11. The end face of the stator valve seat 1 has two operating windows 12, which are connected to the two sorting and collecting chambers 11 respectively. Both operating windows 12 are tightly fitted with protective covers 13. During use, rubber granule filler is filled into the two sorting and collecting chambers 11. The workpiece falls into the sorting and collecting chamber 11. As the cradle processing platform 26 shakes, the workpiece is submerged in the filler to prevent it from colliding with the workpiece that falls in later. After processing, the protective cover 13 is removed, and the qualified and unqualified workpieces in the sorting and collecting chambers 11 on both sides can be taken out separately.

[0025] refer to Figure 3 , Figure 4 The telescopic end of the main hydraulic cylinder 8 extends to the stator valve seat 1 near the rotor integrated valve body 2. A pilot plate 14 is fixedly mounted on the telescopic end of the main hydraulic cylinder 8. Two bosses 9 are fixed on the pilot plate 14. The phase angle of the two bosses 9 corresponds to the inlet position of the sorting and collecting cavity 11, allowing the rotary indexing fixture 5 to sort workpieces into different sorting and collecting cavities 11 after rotating at different angles. Figure 9 As shown, at this time, a boss 9 is aligned with the telescopic end of the corresponding circumferential distribution cylinder 4; as Figure 6 As shown, the boss 9 and the telescopic end of the circumferential distribution cylinder 4 are misaligned. That is, at this time, when the telescopic end of the main hydraulic cylinder 8 extends, it can push the end of the central hydraulic cylinder 3. The boss 9 and the telescopic end of the circumferential distribution cylinder 4 are not in contact. See details... Figure 2 .

[0026] Among them, such as Figure 5 As shown, the hydraulic clamp 7 includes a clamping block 15, a driving piston 16, a transmission rod 17, and a spring 18. A driving hydraulic chamber 19 is provided inside the rotor integrated valve body 2. The driving piston 16 is slidably installed in the driving hydraulic chamber 19. One end of the transmission rod 17 is fixedly connected to the driving piston 16, and the other end of the transmission rod 17 is drivenly connected to the clamping block 15. There is a certain sliding gap between the end of the transmission rod 17 and the clamping block 15, for example, the sliding gap is set to 4mm. The spring 18 presses against the clamping block 15, so that the end of the clamping block 15 extends into the positioning hole 6. Under the preload of the spring 18, the clamping block 15 can move within a certain stroke to achieve initial clamping of the workpiece. At the same time, it can form rigid clamping when hydraulically locked.

[0027] refer to Figure 7 8. The rotor integrated valve body 2 is provided with a first hydraulic channel 20. The two ends of the first hydraulic channel 20 are respectively connected to the rodless chamber of the central hydraulic cylinder 3 and the drive hydraulic chamber 19. A first check valve 21 is provided in the first hydraulic channel 20. It should be noted that the rodless chamber and the rod chamber refer to the chambers on both sides of the piston of the cylinder. The chamber with a rod is called the rod chamber. This is a common term in the industry. The first check valve 21 only allows the hydraulic oil in the central hydraulic cylinder 3 to flow into the drive hydraulic chamber 19 in one direction. Figure 7 As shown; The rotor integrated valve body 2 is provided with a second hydraulic channel 22, which connects the rod chamber of the driving hydraulic chamber 19, the rodless chamber of the circumferential distribution cylinder 4, and the rod chamber of the central hydraulic cylinder 3. A second check valve 23 is provided within the second hydraulic channel 22 located between the circumferential distribution cylinder 4 and the central hydraulic cylinder 3. The second check valve 23 only allows hydraulic oil from the rod chamber of the central hydraulic cylinder 3 to flow into the circumferential distribution cylinder 4. Figure 7 As shown; The rotor integrated valve body 2 is equipped with a third hydraulic channel 24. Both ends of the third hydraulic channel 24 are connected to the central hydraulic cylinder 3 and the rodless chamber of the drive hydraulic chamber 19, respectively. A pressure relief valve 25 is installed within the third hydraulic channel 24. When the oil pressure in the rodless chamber of the drive hydraulic chamber 19 increases to a certain value, the hydraulic oil pushes open the pressure relief valve 25 and flows back to the rodless chamber of the central hydraulic cylinder 3. Figure 8 As shown, the two ends of the fourth hydraulic channel 28 are connected to the rod chamber of the central hydraulic cylinder 3 and the rod chamber of the drive hydraulic chamber 19, respectively.

[0028] It should be noted that hydraulic locking: (Refer to...) Figure 7 When a workpiece needs to be firmly clamped, the piston rod of the main hydraulic cylinder 8 extends, pushing the main control piston of the central hydraulic cylinder 3 to move. Pressurized oil enters the rodless chamber of the drive hydraulic chamber 19 through the first hydraulic channel 20 (with the first check valve 21 within the channel ensuring unidirectional oil flow), pushing the drive piston 16. The drive piston 16, through the transmission rod 17, overcomes the spring force to further press the clamping block 15, thereby achieving synchronous hydraulic locking at all stations.

[0029] Selective release: This is key to achieving sorting. For example... Figure 8 As shown, when a workpiece needs to be released from a specific workstation, the rotary table of the cradle processing platform 26 drives the rotor integrated valve body 2 to rotate, aligning the circumferential distribution cylinder 4 corresponding to the target workpiece with the boss 9 on the pilot plate 14 at a specific phase angle. Subsequently, the main hydraulic cylinder 8 extends again, at which point the boss 9 pushes the piston rod of the corresponding circumferential distribution cylinder 4. This action opens a pressurized oil circuit formed by the second hydraulic channel 22 (the second check valve 23 prevents oil from flowing back into the central hydraulic cylinder 3), increasing the oil pressure in the rod chamber of the target workstation's drive hydraulic chamber 19. The drive piston 16 moves to the right, the clamping block 15 of that workstation retracts, the workpiece loses its grip, and falls into the sorting and collecting chamber 11 aligned below under gravity. Meanwhile, the third hydraulic channel 24 and the pressure relief valve 25 serve as a safety circuit, driving the hydraulic oil in the rodless chamber of the hydraulic chamber 19 to be introduced into the rodless chamber of the central hydraulic cylinder 3 along the third hydraulic channel 24. The main control piston of the central hydraulic cylinder 3 moves to the left a certain distance until all hydraulic clamps 7 retract, thereby resetting the central hydraulic cylinder 3. At the same time, the hydraulic oil in the rod chamber of the central hydraulic cylinder 3 enters the rod chamber of the circumferential distribution cylinder 4 through the fourth hydraulic channel 28, thereby resetting the circumferential distribution cylinder 4.

[0030] In this embodiment, as Figure 6 As shown, it also includes a contact-type trigger probe 10. This contact-type trigger probe 10 can be automatically gripped by the machining center spindle like a cutting tool, and performs on-machine measurements of critical dimensions on the workpiece while it is still clamped. The measurement data is fed back to the machine tool CNC system in real time, and the system initiates an intelligent closed-loop quality control process based on this data. Its core logic is as follows: 1. Initial inspection and judgment: The CNC system compares the measured data fed back by the probe with the preset tolerance range and automatically makes an initial judgment; 2. Processing of qualified products: If the workpiece size is qualified in one processing, the system generates an instruction to direct the direct drive motor 27 to rotate the workpiece to the qualified product sorting station and trigger the hydraulic sorting action to make the workpiece fall into the qualified product collection chamber. 3. Handling of Non-conforming Products and Rework Decisions: If a workpiece is initially determined to be non-conforming during inspection, the system will not immediately sort it into the scrap area. Instead, it will automatically invoke a preset rework program based on the specific circumstances of the deviation (e.g., dimensions are too large or there are repairable features, or the hole diameter is too small or the step height is insufficient). The machine tool will utilize the positioning reference from the original clamping to perform in-situ fine machining on the non-conforming parts to attempt to correct the error. 4. Re-inspection and final judgment: After the rework is completed, the system will call the contact trigger probe 10 again to perform a second on-machine measurement of the workpiece (re-inspection). Repair successful: If the re-inspection results meet the tolerance requirements, the system will regard the workpiece as a "repair qualified product" and sort it into the qualified product collection chamber. Repair failure: If the workpiece dimensions are still unqualified after re-inspection, or if it is determined to be an irreparable defect, the system will ultimately determine it as scrap and generate an instruction to sort it into the non-conforming product collection chamber.

[0031] This device integrates the stator valve seat 1, rotor integrated valve body 2, and rotary indexing fixture 5 directly onto the cradle processing platform 26, creating an integrated structure where the processing position is also the sorting position. This structure allows workpieces to complete the entire process of multi-angle processing, in-machine inspection, and directional sorting once after being clamped, relying on the platform's own direct-drive motor 27. This physically eliminates secondary clamping errors caused by removing workpieces for sorting and compresses multiple processes into a single clamping cycle, directly leading to an improvement in overall production efficiency.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A parts sorting and conveying device for a five-axis machining center, integrated on the rotary table of the cradle machining platform (26) of the machining center, characterized in that, include: The stator valve seat (1) is fixedly installed on the cradle processing platform (26) and has two independent sorting and collecting chambers (11) inside. The rotor integrated valve body (2) is driven by the rotary table. The rotor integrated valve body (2) is provided with a central hydraulic cylinder (3) and multiple circumferential distribution cylinders (4) arranged in a ring array around it. The rotary indexing fixture (5) is a ring structure, which is coaxially fixedly connected to the rotor integrated valve body (2) and rotatably fitted onto the outside of the stator valve seat (1). It has multiple positioning holes (6) arranged in a ring on the radial side for clamping workpieces. Multiple hydraulic clamps (7) are arranged in a ring array inside the rotor integrated valve body (2), and the telescopic ends of each hydraulic clamp (7) extend into the corresponding positioning hole (6); Integrated hydraulic control system, including: a. A main hydraulic cylinder (8) is set at the end of the stator valve seat (1). The telescopic end of the main hydraulic cylinder (8) extends and pushes the piston rod of the central hydraulic cylinder (3) to move, injecting the hydraulic oil in the central hydraulic cylinder (3) into each of the hydraulic clamps (7) to control the clamping of the hydraulic clamps (7). b. Two bosses (9) with different phase angles are set at the extension and retraction end of the main hydraulic cylinder (8); c. When the rotor integrated valve body (2) rotates to a specific indexing angle, the main hydraulic cylinder (8) pushes the piston rod of the corresponding circumferential distribution cylinder (4) through a certain boss (9), thereby controlling the oil circuit of the target circumferential distribution cylinder (4), so that the hydraulic clamp (7) of the corresponding positioning hole (6) moves independently and releases the clamping of the hydraulic clamp (7).

2. The five-axis machining center parts sorting and conveying device according to claim 1, characterized in that: It also includes a contact trigger probe (10), which can be gripped by the spindle of the machining center and used to measure the critical dimensions of the workpiece within the positioning hole (6).

3. The five-axis machining center parts sorting and conveying device according to claim 1, characterized in that: The inlets of the two independent sorting and collecting chambers (11) are both located on the outer circular surface of the stator valve seat (1). After the rotary indexing fixture (5) rotates at different angles, the positioning hole (6) can be connected to the inlet of the sorting and collecting chamber (11). The end face of the stator valve seat (1) has two operating windows (12). The two operating windows (12) are respectively connected to the two sorting and collecting chambers (11), and the two operating windows (12) are tightly fitted with protective covers (13).

4. A five-axis machining center parts sorting and conveying device according to claim 1, characterized in that: The telescopic end of the main hydraulic cylinder (8) extends to the side of the stator valve seat (1) near the rotor integrated valve body (2). The telescopic end of the main hydraulic cylinder (8) is fixedly mounted with a pilot plate (14). Both bosses (9) are fixed on the pilot plate (14). The phase angle of the two bosses (9) corresponds to the entrance position of the sorting and collecting cavity (11), so that after the rotary indexing fixture (5) rotates at different angles, it can sort the workpieces into different sorting and collecting cavities (11) respectively.

5. A five-axis machining center parts sorting and conveying device according to claim 1, characterized in that: The two sorting and collecting chambers (11) correspond to the qualified product collecting chamber and the unqualified product collecting chamber, respectively.

6. A five-axis machining center parts sorting and conveying device according to claim 1, characterized in that: The hydraulic clamp (7) includes a clamping block (15), a driving piston (16), a transmission rod (17), and a spring (18). The rotor integrated valve body (2) has a driving hydraulic chamber (19). The driving piston (16) is slidably installed in the driving hydraulic chamber (19). One end of the transmission rod (17) is fixedly connected to the driving piston (16), and the other end of the transmission rod (17) is connected to the clamping block (15). The spring (18) abuts against the clamping block (15), so that the end of the clamping block (15) extends into the positioning hole (6).

7. A five-axis machining center parts sorting and conveying device according to claim 6, characterized in that: The rotor integrated valve body (2) is provided with a first hydraulic channel (20), the two ends of the first hydraulic channel (20) are respectively connected to the central hydraulic cylinder (3) and the rodless chamber of the driving hydraulic chamber (19), and a first check valve (21) is provided in the first hydraulic channel (20).

8. A five-axis machining center parts sorting and conveying device according to claim 7, characterized in that: The rotor integrated valve body (2) is provided with a second hydraulic channel (22), which connects the rod chamber of the driving hydraulic chamber (19), the rodless chamber of the circumferential distribution cylinder (4) and the rod chamber of the central hydraulic cylinder (3). A second check valve (23) is provided in the second hydraulic channel (22) located between the circumferential distribution cylinder (4) and the central hydraulic cylinder (3).

9. A five-axis machining center parts sorting and conveying device according to claim 8, characterized in that: The rotor integrated valve body (2) is provided with a third hydraulic channel (24) and a fourth hydraulic channel (28). The two ends of the third hydraulic channel (24) are respectively connected to the rodless chamber of the central hydraulic cylinder (3) and the driving hydraulic chamber (19). The third hydraulic channel (24) is provided with a pressure relief valve (25). The two ends of the fourth hydraulic channel (28) are respectively connected to the rod chamber of the central hydraulic cylinder (3) and the rod chamber of the driving hydraulic chamber (19).

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