A multi-process combined machine tool for compressor piston

Abstract

The application discloses a kind of compressor piston multi-process combination processing machine tool, it is related to piston processing equipment technical field, including layered frame, and integrated in rack transmission, intermittent rotation, lifting demoulding, pushing mechanism and processing center with mechanism of transfer.The rack middle layer is equipped with the carrying disc of multiple mold storehouse, and the piston blank is supported in the built-in lifting disc of mold storehouse;Only one main motor is provided in the whole machine, and the main shaft is synchronously driven to drive the belt, intermittent rotation mechanism and pushing mechanism, intermittent index is realized by intermittent rack between carrying disc, and mechanical automatic lifting is realized by matching annular base arc convex, and piston is transported to the belt by synchronous connecting rod pushing;Position sensor is provided above the belt, and the workpiece is sent into processing center to complete cutting, boring, deburring compound processing by linkage multi-micro motor driven transfer chuck grabbing.This application links each pre-process by single power source, and movement rhythm is synchronous and stable, so that the problem of multiple motor coordination is eliminated.

Description

Technical Field

[0001] This invention relates to the field of piston processing equipment technology, and specifically to a multi-process combined processing machine tool for compressor pistons. Background Technology

[0002] As the core moving and sealing component of a compressor, the piston's dimensional accuracy and geometric tolerances directly determine the compressor's sealing performance, operating noise, and service life, making it a key processing object in the overall manufacturing process. After the compressor piston blank is die-cast and demolded, it needs to complete multiple continuous processes, including transfer, indexing and positioning, automatic feeding, clamping and cutting, drilling, boring, and deburring. Large-scale production in the industry places higher demands on the automation continuity, multi-process integration, and transmission synchronization of piston processing equipment.

[0003] Currently, traditional compressor piston processing production lines generally adopt a separate, single-machine operation mode. The demolded blank transfer, station indexing conveyor, and workpiece clamping and processing are independent of each other. The entire set of equipment lacks an integrated linkage drive architecture, which has many inherent defects.

[0004] 1. The transfer, indexing station switching and feeding of the blank after demolding are carried out by three independent drive motors. The conveying mechanism, rotary station mechanism and pushing and feeding mechanism are controlled separately. The synchronization and coordination of multiple power sources is difficult, the equipment control program is complex, and the movement rhythm of different mechanisms is prone to misalignment. It is very easy to cause faults such as piston jamming, incomplete pushing and indexing positioning deviation. The equipment failure rate is high and the debugging and maintenance costs are high.

[0005] 2. The existing indexing station only has a simple rotational positioning function and lacks an automatic blank lifting and unloading structure. After demolding, the piston blank is placed directly in the indexing plate mold chamber. The piston needs to be pushed out manually or by an external lifting cylinder before being transferred by a robot. This involves many manual interventions and is labor-intensive.

[0006] 3. Insufficient integration of multi-process equipment and large factory area occupied by separate layout. Demolding and transfer, indexing and material changing, conveying and feeding, and processing and clamping are all done by multiple independent equipment. Workpieces need to be transferred between multiple machine tools manually or by robotic arms. During the transfer process, the piston surface is prone to bumps and scratches.

[0007] To address the aforementioned issues, a piston machining tool integrating blank transfer, indexing station conversion, automatic pushing and conveying, and automatic clamping and processing is proposed. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a multi-process combined machining tool for compressor pistons. It enables single-main-motor linkage control of indexing rotation, lifting and demolding, material feeding, and workpiece conveying—all pre-processes—to be completed. Combined with a program-controlled transfer mechanism, it achieves automated composite cutting, significantly improving equipment synchronization, integration, and automation, while reducing failure rates and labor costs.

[0009] The technical solution adopted in this invention includes:

[0010] The frame, and the conveying mechanism, intermittent rotation mechanism, lifting and demolding mechanism, pushing mechanism, transfer mechanism and machining center mounted on the frame;

[0011] The frame is divided into three layers: upper, middle and lower. The front side of the middle frame is provided with a mounting disc. The mounting disc is provided with a number of mold compartments at equal angles around its own center. Each mold compartment is provided with a lifting plate. The mold compartment is provided with a detachable piston head to be processed. The piston head to be processed is detachably located on the upper part of the lifting plate.

[0012] A conveyor belt is installed inside the middle frame, and the conveyor belt is located behind the mounting disc. A machining center is located behind the conveyor belt and is located on the upper frame. A transfer mechanism is also installed on the upper frame and is located in front of the machining center and is controlled by an external program.

[0013] The conveying mechanism is located on the right side of the lower frame and is used to drive the conveyor belt.

[0014] The intermittent rotation mechanism is located in the lower frame and is used to control the intermittent rotation of the mounting disk, which is driven by the conveying mechanism.

[0015] The lifting and demolding mechanism is located inside the mold chamber and is used to control the up and down movement of the lifting plate. The mounting disc drives the lifting and demolding mechanism to work by rotating.

[0016] The pushing mechanism is located at the upper end of the mounting disc and is used to push the piston head to be processed protruding from the mounting disc backward onto the conveyor belt. The pushing mechanism is driven by the conveying mechanism.

[0017] After the piston head to be processed is pushed onto the conveyor belt by the pushing mechanism and transported to the designated position by the conveyor belt, the transfer mechanism can transfer the piston head to be processed to the machining center for composite processing.

[0018] Furthermore, the frame includes a first support rod, a second support rod, a base box, a middle side plate, an upper side plate, a first T-beam, a convex plate, and a placement plate;

[0019] A common base box is fixed between the lower parts of the four first support rods. The base box is arranged through the front and back. A middle side plate is provided on the upper part of the left and right sides of the base box. The two middle side plates are fixed on the upper ends of the two first support rods on the corresponding sides.

[0020] The upper ends of the two middle side plates are respectively fixed with upper side plates, and the front ends of the two upper side plates are connected by the two ends of the cross plate of the first T-shaped beam.

[0021] The two upper side plates are respectively provided with protruding plates at their rear ends, and the bottom of the machining center is provided with the vertical plate of the second T-shaped beam. The two ends of the horizontal plate of the second T-shaped beam are respectively fixedly connected to the inner wall of the corresponding side protruding plate.

[0022] A placement plate is provided on the outer side of the middle side plate located on the right side, and two second support rods are respectively provided on the lower part of the outer end of the placement plate;

[0023] The conveyor belt is mounted between the two central side plates;

[0024] The conveying mechanism is located at the upper end of the placement plate;

[0025] The intermittent rotation mechanism is located inside the bottom box;

[0026] The transfer mechanism is located at the upper end of the first T-beam.

[0027] Furthermore, the conveying mechanism includes a main motor, a first transmission wheel, a second transmission wheel, a transmission belt, and a main shaft;

[0028] The two ends of the conveyor belt are respectively rotatably disposed between the two middle side plates via pulleys, and the pulley located on the rear side rotatably passes through the corresponding middle side plate and is fixedly provided with a first transmission wheel;

[0029] A second transmission wheel is fixedly mounted on the right side wall of the base box via a main shaft, and the same transmission belt is fitted on the outer side of the first transmission wheel and the second transmission wheel;

[0030] The upper end of the placement plate is fixedly equipped with a main motor, and the output shaft of the main motor is fixedly connected to the second transmission wheel;

[0031] The main shaft drives the intermittent rotation mechanism and the pushing mechanism to work by rotating.

[0032] Furthermore, the intermittent rotation mechanism includes a first spur gear, a first rack plate, a vertical connecting plate, a second spur gear, a second rack plate, and a first fixed shaft;

[0033] The lower center of the mounting disc is fixedly provided with the first end of the first fixed shaft, the second end of the first fixed shaft is rotatably provided on the top wall of the base box, the outer wall of the second end of the first fixed shaft is fixedly provided with the second spur gear, the left side of the second spur gear is meshed with the second rack plate, and the second rack plate is slidably provided on the upper end of the base box;

[0034] The lower front end of the second rack plate is provided with a first end of a vertical connecting plate, and the rear end of the second end of the vertical connecting plate is fixedly provided with a first rack plate;

[0035] The first rack plate is slidably disposed on the upper end of the bottom wall of the base box;

[0036] The vertical connecting plate is movably disposed on the front side of the base box, and a first spur gear is fixedly sleeved on the outer wall of the main shaft. The first spur gear is rotatably disposed inside the base box, and the first spur gear meshes with the first rack plate.

[0037] The teeth on the second rack plate are intermittently arranged according to the number of mold compartments, so as to realize the intermittent rotation of the mounting disc.

[0038] Furthermore, the lifting and demolding mechanism includes a fixed rod, an annular base, and an arc-shaped protrusion;

[0039] An annular base is fixed between the front ends of the two middle side plates by a second fixed shaft. The first fixed shaft rotates through the annular base. An arc-shaped protrusion is provided at the rear of the upper end of the annular base. The arc-shaped protrusion is located at the lower front side of the conveyor belt.

[0040] The bottom of each of the lifting plates is provided with a first end of a fixing rod, and the second end of each of the fixing rods is slidably connected through the bottom of the mold chamber on the corresponding side, and all abut against the upper surface of the annular base and the arc-shaped protrusion.

[0041] When the second end of one of the fixed rods abuts against the uppermost end of the arc-shaped protrusion, the corresponding lifting plate can push the piston head to be processed out of the upper surface of the mounting plate.

[0042] Furthermore, the pushing mechanism includes a slider, a first connecting frame, a first connecting rod, a vertical sliding rod, a second connecting frame, a second connecting rod, a horizontal sliding rod, a pushing rod, a transmission shaft, an L-shaped rod, a turntable, and a convex shaft;

[0043] The left end of the main shaft is rotatably connected to a turntable fixedly mounted on the left side wall of the bottom box, and a convex shaft is provided at an eccentric position on the outer wall of the turntable;

[0044] An L-shaped vertical rod is slidably provided on the outer wall of the middle side plate located on the left side. The vertical rod of the L-shaped rod extends downward to the outer side of the turntable. A first through groove is provided on the vertical rod of the L-shaped rod. The convex shaft and the first through groove are slidably connected.

[0045] The first end of the drive shaft is provided on the inner wall of the crossbar end of the L-shaped rod;

[0046] The first T-beam has a second through groove on its vertical bar, and a slider slides through the second through groove. The upper end of the slider is provided with a first connecting frame, and the first end of the first connecting rod is rotatably provided in the first connecting frame.

[0047] The vertical end of the first T-beam is provided with a rectangular through hole, and a vertical slide rod slides through the rectangular through hole. A second connecting frame is provided on the upper rear wall of the vertical slide rod, and the second end of the first connecting rod is rotatably disposed in the second connecting frame.

[0048] The lower end of the vertical slide bar is provided with a third fixed shaft on both sides, and the first end of the second connecting rod is rotatably sleeved on the outer wall of the two third fixed shafts respectively;

[0049] A transverse slide bar is mounted on the upper end of the mounting disc. A fourth fixed shaft is provided on both sides of the front end of the transverse slide bar. The second ends of the two second connecting rods are respectively rotatably sleeved on the outer wall of the corresponding side of the fourth fixed shaft.

[0050] The rear end of the transverse slide bar is provided with a push rod;

[0051] The piston head to be processed, which protrudes from the disk, can be transferred to the upper end of the conveyor belt by being pushed by the push rod.

[0052] Furthermore, the transfer mechanism includes a position sensor, a third connecting frame, a third connecting rod, a hollow barrel, a telescopic rod, and a rotating chuck;

[0053] The rear end of the cross plate of the first T-beam is provided with a third connecting frame, and the middle part of the third connecting frame is rotatably provided in the third connecting frame. The third connecting rod is driven to rotate by the first micro motor.

[0054] A hollow barrel is fixedly provided at the outer end of the third connecting rod, and a telescopic rod is slidably provided inside the hollow barrel. The telescopic rod is driven to slide by a second micro motor.

[0055] The outer end of the telescopic rod is rotatably equipped with a rotating chuck, which is driven to rotate by a third micro motor.

[0056] A position sensor is provided at the lower end of the cross plate of the first T-beam, and the position sensor is located above the conveyor belt;

[0057] When the position sensor detects the incoming piston head to be processed, the main motor is turned off. The first and second micro motors work together to make the rotating chuck hold the piston head to be processed below and transport it to the machining center. The third micro motor is then started to begin processing. After processing is completed, the main motor is turned on to perform the next processing.

[0058] The main motor, the first micro motor, the second micro motor, and the third micro motor are all controlled by an external program to start and stop.

[0059] Advantages of this invention:

[0060] This invention uses only one main motor as the power source for all the preceding processes. It achieves three main actions: synchronous drive of the main shaft to the conveyor belt, intermittent indexing rotation of the mounting disc, and automatic material pushing by the push rod. This eliminates the need for multiple independent motors to control each mechanism separately. The movement rhythms of each mechanism are naturally matched, eliminating rhythm misalignment, material jamming, and indexing deviation faults. This simplifies the equipment control program and reduces debugging and maintenance costs.

[0061] In addition to the objectives, features and advantages described above, the present invention has other objectives, features and advantages, which will be further described in detail below with reference to the figures. Attached Figure Description

[0062] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0063] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0064] Figure 2 This is a schematic diagram of the overall structure of the frame of the present invention;

[0065] Figure 3 This is a schematic diagram of the assembly of the conveying mechanism and the machining center of the present invention;

[0066] Figure 4 This is a partially enlarged schematic diagram of the spindle and turntable transmission of the present invention;

[0067] Figure 5 This is an enlarged schematic diagram of the overall assembly of the feeding mechanism of the present invention;

[0068] Figure 6 This is a schematic diagram showing the details of the connecting rod transmission of the feeding mechanism of the present invention;

[0069] Figure 7 This is a schematic diagram of the bottom structure of the intermittent rotation mechanism of the present invention;

[0070] Figure 8This is a schematic diagram of the mold compartment lifting plate lifting and discharging state of the present invention;

[0071] Figure 9 This is an enlarged schematic diagram of the transfer mechanism of the present invention;

[0072] Figure 10 This is a side view of the bottom transmission of the intermittent rotation mechanism of the present invention.

[0073] Figure label:

[0074] 1 is the first support rod, 2 is the base box, 3 is the placement plate, 4 is the main motor, 5 is the first transmission wheel, 6 is the middle side plate, 7 is the upper side plate, 8 is the machining center, 9 is the first T-beam, 10 is the ring base, 11 is the conveyor belt, 12 is the turntable, 13 is the L-shaped rod, 14 is the slider, 15 is the vertical slide rod, 16 is the first connecting rod, 17 is the second connecting rod, 18 is the transmission shaft, 19 is the mounting disc, 20 is the mold compartment, 21 is the fixing rod, 22 is the transverse slide rod, 23 is the second spur gear, 24 is the vertical connecting plate, 25 is the second rack plate, 26 is the first rack plate, 27 is the first spur gear, 28 is the piston head to be processed, 29 is the third connecting rod, 30 is the telescopic rod, and 31 is the rotating chuck.

[0075] 101 is the second support rod;

[0076] 501 is the second drive pulley, and 502 is the drive belt;

[0077] 701 is a convex plate;

[0078] 801 is the second T-shaped beam;

[0079] 901 is the third connecting bracket, 902 is the second through slot, and 903 is a rectangular through hole;

[0080] 1001 is an arc-shaped protrusion;

[0081] 1201 is the convex shaft, and 1202 is the main shaft;

[0082] 1301 is the first through slot;

[0083] 1401 is the first connecting frame;

[0084] 1501 is the second connecting frame;

[0085] 1901 is the first fixed axis;

[0086] 2101 is a lifting platform;

[0087] 2201 is the push rod;

[0088] 2901 is a hollow barrel. Detailed Implementation

[0089] To make the objectives, technical solutions, and advantages of the invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention.

[0090] In the description of the 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 the 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 limiting the invention.

[0091] refer to Figures 1 to 10 A multi-process combined machining tool for compressor pistons, comprising:

[0092] The frame, and the conveying mechanism, intermittent rotation mechanism, lifting and demolding mechanism, pushing mechanism, transfer mechanism and machining center mounted on the frame;

[0093] The machine frame is divided into three independent functional areas: upper, middle, and lower, to achieve partitioned arrangement of mechanisms and avoid motion interference. The front end of the middle frame is equipped with a rotating mounting disc 19. The mounting disc 19 has multiple mold compartments 20 evenly spaced around its own center. The mold compartments 20 are piston blank positioning and accommodating stations.

[0094] Each mold chamber 20 is equipped with a vertically lifting plate 2101. The piston head 28 to be processed is placed directly on the top surface of the lifting plate 2101. The lifting plate 2101 can slide up and down along the inner cavity of the mold chamber 20, thereby realizing the lifting and lowering of the piston blank.

[0095] A conveyor belt 11 is horizontally mounted on the middle frame. The conveyor belt 11 is horizontally arranged behind the mounting disc 19 and serves as a transfer and conveying channel for the piston after the material is lifted and discharged. A machining center 8 is correspondingly set at the tail of the conveyor belt 11. The machining center 8 is hoisted and fixed as a whole at the rear end of the upper frame.

[0096] A transfer mechanism is installed at the front end of the upper frame and in front of the machining center 8. The transfer mechanism is independently connected to an external PLC program control system and can independently complete the gripping, shifting and feeding actions of the piston head 28 to be processed, realizing automated loading and unloading.

[0097] The conveying mechanism is installed on the right side of the lower frame and is the main power unit for the front-end process of the whole machine. Its core function is to drive the conveyor belt 11 to continuously circulate and transport the piston head 28 to be processed to the rear. At the same time, the main shaft of the conveying mechanism outputs power synchronously to provide synchronous driving force for the intermittent rotation mechanism and the pushing mechanism, realizing the single-source linkage of multiple mechanisms.

[0098] The intermittent rotation mechanism is housed inside the bottom box 2 cavity of the lower frame. It is specifically designed to control the intermittent indexing rotation of the mounting disc 19. The power is entirely derived from the transmission mechanism, and it starts and stops synchronously with the conveyor belt to ensure that the switching of the mold chamber station matches the conveying action of the piston head 28 to be processed.

[0099] The lifting and demolding mechanism is installed at the bottom of the mold compartment 20 and is driven by the rotation of the mounting disc 19. During the indexing rotation of the mounting disc 19, the lifting disc 2101 at the bottom of the mold compartment 20 automatically rises and falls along the track contour.

[0100] The material pushing mechanism is mounted above the mounting disc 19, and the power is also supplied by the main shaft of the conveyor mechanism. When the lifting and demolding mechanism pushes the piston head 28 to be processed upward and above the surface of the mounting disc 19, the material pushing mechanism can push backward and accurately push the piston head 28 to be processed onto the surface of the conveyor belt 11.

[0101] The piston blank is placed in the mold chamber 20 with the disk 19. After the conveying mechanism is started, the disk 19 is driven to rotate intermittently. When the mold chamber 20 rotates to the lifting position, the lifting and demolding mechanism lifts the piston head 28 to be processed upward, and the pushing mechanism pushes the piston to the conveyor belt 11 in a synchronous action. The conveyor belt 11 transports the piston backward to the designated sensing position below the transfer mechanism. After the transfer mechanism detects that the piston head 28 to be processed is in place, it automatically grabs the piston and moves it to the machining center 8, where the machining center 8 performs composite processing such as drilling, boring, cutting, and deburring.

[0102] The frame includes a first support rod 1, a second support rod 101, a base box 2, a middle side plate 6, an upper side plate 7, a first T-beam 9, a convex plate 701, and a placement plate 3;

[0103] The four first support rods 1 form the main support column of the whole machine. The bottom of the four first support rods 1 surrounds and fixes the bottom box 2 that runs through the front and back, which serves as the core installation area of ​​the lower frame.

[0104] The middle side plate 6 is vertically fixed on the upper left and right sides of the bottom box 2. Each middle side plate 6 is supported by the top of the two first support rods 1 on the same side. The two middle side plates 6 are parallel to each other and are placed opposite each other to form the main frame of the middle frame. The conveyor belt 11 is horizontally installed between the two middle side plates 6, and the pulley is installed by relying on the middle side plates 6 on both sides.

[0105] The top of each middle side plate 6 is vertically fixed to the upper side plate 7, and the two upper side plates 7 are arranged on the left and right sides respectively; the front ends of the two upper side plates 7 are rigidly connected through the two ends of the horizontal plate of the first T-beam 9, the first T-beam 9 spans across the upper part of the front end of the equipment, and the entire transfer mechanism is assembled at the upper end of the first T-beam 9.

[0106] Two upper side plates 7 extend to the rear end of the protruding plates 701, with the left and right protruding plates 701 arranged opposite each other; the bottom of the machining center is fixedly connected to the second T-beam 801, which is arranged laterally, and its two ends are respectively fixedly connected to the inner walls of the two side protruding plates 701, so as to hoist the machining center 8 above the rear end of the upper frame and the tail of the conveyor belt 11, ensuring that the transfer mechanism can smoothly send the piston head 28 to be processed into the machining center 8;

[0107] The outer side wall of the right middle side plate 6 extends outward to fix the placement plate 3, which serves as the installation platform for the conveying mechanism. Two second support rods 101 are added to the bottom of the outer end of the placement plate 3 to support it downward, share the weight of the main motor 4, and improve the load-bearing rigidity of the placement plate 3. The entire conveying mechanism is assembled on the upper end of the placement plate 3.

[0108] The transmission mechanism includes a main motor 4, a first transmission wheel 5, a second transmission wheel 501, a transmission belt 502, and a main shaft 1202;

[0109] Both ends of the conveyor belt 11 are equipped with rotating pulleys. The two sets of pulleys are respectively mounted between two parallel and opposite middle side plates 6, and are supported by the middle side plates 6. The pulley located on the rear side rotates outward through the right middle side plate 6, and the end of the pulley is rigidly fixed to the first drive wheel 5 on the same axis, so that the speed of the conveyor belt 11 is completely synchronized with the speed of the first drive wheel 5.

[0110] A main shaft 1202 is horizontally inserted through the right side wall of the base box 2. The extended end of the main shaft 1202 is fixedly equipped with a second transmission wheel 501. The first transmission wheel 5 and the second transmission wheel 501 are arranged vertically, and the same transmission belt 502 is fitted on their outer sides. Power transmission is achieved by belt drive. The power output of the main motor 4 can synchronously drive the conveyor belt 11 to rotate in a cycle.

[0111] The placement plate 3, which carries the entire conveying mechanism, is fixed to the outer wall of the right middle side plate 6. The outer end of the placement plate 3 is reinforced by two second support rods 101. The main motor 4 is bolted to the top surface of the placement plate 3. The output shaft of the main motor 4 is directly locked coaxially with the second transmission wheel 501. After the main motor 4 is started, it can directly drive the second transmission wheel 501 and the main shaft 1202 to rotate synchronously.

[0112] The main shaft 1202 drives the intermittent rotation mechanism and the pushing mechanism to work by rotating.

[0113] The intermittent rotation mechanism includes a first spur gear 27, a first rack plate 26, a vertical connecting plate 24, a second spur gear 23, a second rack plate 25, and a first fixed shaft 1901;

[0114] The first fixed shaft 1901 is vertically fixed to the center of the bottom of the mounting disk 19. The first fixed shaft 1901 rotates downward and engages with the top wall of the base box 2 to achieve stable rotation support for the mounting disk 19. The second spur gear 23 is rigidly coaxially fixed to the lower outer wall of the first fixed shaft 1901. The second spur gear 23 serves as the driven gear that drives the mounting disk 19 to rotate, and the speed and angle of rotation of the two are completely synchronized.

[0115] The bottom box 2 is equipped with two layers of sliding rack components: the upper layer is the second rack plate 25, which is horizontally slidably assembled on the top plate of the bottom box 2, and the second rack plate 25 meshes laterally with the second spur gear 23;

[0116] The lower layer is the first rack plate 26, which is horizontally slidably mounted on the upper surface of the bottom plate of the base box 2. The vertical connecting plate 24 is vertically arranged in the front area of ​​the base box 2. Its upper end is rigidly connected to the lower front end of the second rack plate 25, and its lower rear end is fixed to the first rack plate 26 as a whole, so that the first rack plate 26, the vertical connecting plate 24, and the second rack plate 25 form an integrated synchronous sliding frame. The reciprocating translation of the lower first rack plate 26 can directly drive the upper second rack plate 25 to move synchronously.

[0117] The main shaft 1202 extends horizontally through the cavity of the bottom box 2. The main shaft 1202 rod is fixedly fitted with the first straight gear 27 inside the bottom box 2. The first straight gear 27 meshes with the first rack plate 26 on the lower layer. When the main motor 4 drives the main shaft 1202 to rotate continuously, the first straight gear 27 rotates in a circle, which is converted into the reciprocating linear sliding of the first rack plate 26, thereby driving the vertical connecting plate 24 and the second rack plate 25 to translate.

[0118] The meshing teeth of the second rack plate 25 are not continuously arranged along the entire length of the plate, but are intermittently segmented according to the number of mold chambers 20 evenly distributed circumferentially on the mounting disk 19. Only some sections have teeth, while the rest are smooth, toothless surfaces.

[0119] When the toothed section of the second rack plate 25 slides to the meshing area with the second spur gear 23, the rack translates and drives the second spur gear 23, the first fixed shaft 1901, and the mounting disk 19 to rotate synchronously by one station angle, completing the indexing switch of the mold chamber 20.

[0120] When the toothless smooth section of the second rack plate 25 moves to the position of the second spur gear 23, the two disengage. At this time, the main shaft 1202 continues to rotate and the first rack plate 26 continues to slide, but the second spur gear 23 and the second rack plate 25 do not mesh, so the mounting disc 19 remains stationary. This stationary stage is the processing waiting station for lifting and pushing operations.

[0121] The lifting and demolding mechanism includes a fixed rod 21, an annular base 10, and an arc-shaped protrusion 1001;

[0122] A second fixed shaft is installed between the front ends of the two opposing middle side plates 6, and the annular base 10 is rigidly fixed on the second fixed shaft, remaining stationary and not rotating throughout the process;

[0123] The first fixed shaft 1901, which is mounted on the bottom center of the disc 19, is vertically downward and rotates coaxially through the central through hole of the annular base 10. The annular base 10 does not interfere with the rotational movement of the first fixed shaft 1901 and the disc 19.

[0124] The rear part of the upper surface of the ring base 10 has an integrally formed arc-shaped protrusion 1001. The arc-shaped protrusion 1001 is located below the front side of the conveyor belt 11, corresponding to the mold chamber 20 rotating to the discharge and push station directly below. Only this station has the lifting function, and the other stations have no lifting action.

[0125] Each mold chamber 20, which is circumferentially distributed with the mounting disc 19, is vertically equipped with a lifting plate 2101. The lifting plate 2101 is used to support the piston head 28 to be processed. The bottom of the lifting plate 2101 is vertically fixed with a fixing rod 21. The fixing rod 21 slides up and down through a sliding hole opened at the bottom of the mold chamber 20. The lower end of all the fixing rods 21 always presses downward against the upper plane of the annular base 10. The plane of the annular base 10 is the reference low position, and the arc-shaped protrusion 1001 is the protrusion high position track. The lower end of the fixing rod 21 rotates with the mounting disc 19 and continuously slides along the contour surface of the annular base 10.

[0126] The disk 19, mounted on an intermittent rotating mechanism, rotates in a stepwise indexing manner, causing each mold chamber 20 and the bottom fixing rod 21 to move intermittently around the annular base 10.

[0127] When a certain mold chamber 20 rotates to be directly above the arc-shaped protrusion 1001, the bottom end of the corresponding fixing rod 21 gradually rises along the slope of the arc-shaped protrusion 1001, and the lifting height continues to increase.

[0128] When the fixed rod 21 reaches the highest point of the arc-shaped protrusion 1001, the lifting plate 2101 is lifted upward to its maximum stroke, and the piston head 28 to be processed placed on it is completely pushed out of the upper surface of the mounting plate 19. The piston head 28 to be processed is higher than the plate surface, providing a pushing force position for the rear pushing mechanism. At this position, the mounting plate 19 will pause for a period of time due to the disengagement of the second spur gear 23 and the second rack plate 25, providing working time for the pushing action.

[0129] As the mounting disc 19 continues to rotate, the fixing rod 21 slides back from the arc-shaped protrusion 1001 slope to the plane of the annular base 10. Simultaneously, the lifting disc 2101 descends and resets, and the piston height returns to normal, awaiting the next indexing cycle.

[0130] The feeding mechanism includes a slider 14, a first connecting frame 1401, a first connecting rod 16, a vertical slide bar 15, a second connecting frame 1501, a second connecting rod 17, a horizontal slide bar 22, a feeding rod 2201, a transmission shaft 18, an L-shaped rod 13, a turntable 12, and a convex shaft 1201.

[0131] The main shaft 1202 extends horizontally to the left through the left side wall of the base box 2. The extended end of the main shaft 1202 is rigidly fixed to the turntable 12. A convex shaft 1201 is integrally provided at an eccentric position on the outer edge of the turntable 12. An L-shaped rod 13 is vertically slidably mounted on the outer wall of the left middle side plate 6. The vertical body of the L-shaped rod 13 extends downward to the outer area of ​​the turntable 12. A long first through groove 1301 is opened on the vertical rod. The eccentric convex shaft 1201 of the turntable 12 slides into the first through groove 1301. The main shaft 1202 continuously rotates, driving the turntable 12 to rotate circumferentially. The eccentric convex shaft 1201 slides back and forth along the first through groove 1301, converting the rotational motion of the turntable 12 into the overall back-and-forth linear sliding of the L-shaped rod 13.

[0132] The transmission shaft 18 is assembled on the inner wall of the end of the horizontal bar of the L-shaped rod 13, so as to transmit the vertical sliding displacement upward to the slider 14.

[0133] The first T-shaped beam 9 of the load-bearing transfer mechanism has a vertical long second through groove 902. The slider 14 is slidably assembled inside the second through groove 902 and can slide back and forth along the groove.

[0134] The top surface of the slider 14 is fixed with a first connecting frame 1401, and one end of the first connecting rod 16 is hinged to the first connecting frame 1401. A horizontal rectangular through hole 903 is opened at the end of the vertical rod of the first T-beam 9. A vertical sliding rod 15 that can slide up and down is inserted into the rectangular through hole 903. The rear side of the upper end of the vertical sliding rod 15 is fixed with a second connecting frame 1501, and the other end of the first connecting rod 16 is hinged to the second connecting frame 1501. When the L-shaped rod 13 slides back and forth, it drives the slider 14 to slide back and forth synchronously along the second through groove 902 through the transmission shaft 18. The first connecting rod 16 pushes and pulls the vertical sliding rod 15, converting the back and forth movement of the slider 14 into the vertical horizontal reciprocating movement of the vertical sliding rod 15 along the rectangular through hole 903.

[0135] A third fixed shaft is symmetrically arranged on the left and right sides of the lower end of the vertical slide bar 15. One end of each of the two second connecting rods 17 is hinged to the third fixed shaft on both sides. A horizontal slide bar 22 is horizontally mounted above the surface of the mounting disc 19. A fourth fixed shaft is symmetrically arranged on the left and right sides of the front end of the horizontal slide bar 22. The other ends of each of the two second connecting rods 17 are hinged to the outer wall of the corresponding fourth fixed shaft. The rear end of the horizontal slide bar 22 is rigidly connected to a push rod 2201, which is arranged towards the conveyor belt 11. When the vertical slide bar 15 slides up and down, the two second connecting rods 17 simultaneously drive the horizontal slide bar 22 to slide back and forth along the surface of the mounting disc 19, ultimately driving the push rod 2201 to complete the cycle of extending, pushing, retracting, and resetting. It should be noted that the horizontal slide bar 22 rests on the upper surface of the mounting disc 19 by gravity and will not flip up and down.

[0136] The main motor 4 starts and drives the main shaft 1202 to rotate. The turntable 12 rotates synchronously with the main shaft. The eccentric cam shaft 1201 drives the L-shaped rod 13 to slide back and forth continuously.

[0137] The L-shaped rod 13 drives the slider 14 to slide back and forth along the second through groove 902 via the transmission shaft 18, and then pulls the vertical slider 15 up and down via the first connecting rod 16;

[0138] The vertical slide bar 15 pushes the horizontal slide bar 22 forward toward the conveyor belt 11 through the second connecting rods 17 on both sides, and the pusher bar 2201 extends simultaneously;

[0139] When the disc 19 is indexed to the top position, the lifting and demolding mechanism lifts the piston head 28 to be processed upwards, above the upper surface of the disc. At this time, the push rod 2201 extends forward and touches the tail of the piston, smoothly pushing the piston head 28 to be processed onto the conveyor belt 11.

[0140] The transfer mechanism includes a position sensor, a third connecting frame 901, a third connecting rod 29, a hollow barrel 2901, a telescopic rod 30, and a rotating chuck 31;

[0141] The third connecting frame 901 is fixedly installed at the rear end of the first T-beam 9. The third connecting frame 901 serves as a swing support base. The third connecting rod 29 is hinged in the middle of the rod body and assembled inside the third connecting frame 901. The rotation of the third connecting rod 29 is independently driven by the built-in first micro motor, which can realize the overall up and down swing of the third connecting rod 29 to complete the position switching of the piston head 28 to be processed between the conveyor belt 11 and the machining center 8.

[0142] The outer end of the third connecting rod 29, away from the hinge point, is rigidly fixed to the hollow barrel 2901. The hollow barrel 2901 is a hollow cylindrical guide structure with a telescopic rod 30 coaxially inserted inside. The telescopic rod 30 can slide axially along the inner cavity of the hollow barrel 2901. The telescopic movement of the telescopic rod 30 is driven by the second micro motor. The height of the rotating chuck 31 is adjusted by the telescopic stroke to match the gripping height of the piston head 28 to be processed on the conveyor belt 11, as well as the height of the clamping station inside the machining center 8.

[0143] The outer end of the telescopic rod 30 is rotatably equipped with a rotating chuck 31. The rotating chuck 31 is a special clamping tool for pistons, which can stably clamp the piston head 28 to be processed. The rotating chuck 31 is equipped with a third micro motor, which can drive the clamped piston head to rotate autonomously, and cooperate with the machining center tool to complete composite machining processes such as external circle cutting, internal hole boring, and end face deburring.

[0144] A position sensor is fixedly installed on the lower side of the first T-beam 9 and directly above the conveyor belt 11. The sensor collects the signal of the piston head 28 to be processed in the conveyor belt area in real time. Only when the piston head 28 to be processed is conveyed to the detection area directly below the sensor will a position trigger signal be sent to the external program to start the transfer and gripping process, so as to avoid the problem of empty gripping without piston head 28 to be processed and the gripping position offset.

[0145] During normal operation: the main motor 4 runs continuously, synchronously driving the conveyor belt 11, the intermittent rotation mechanism, and the pushing mechanism to work together, while the piston head 28 to be processed is continuously conveyed to the transfer station;

[0146] Detection trigger of piston head 28 to be processed: Conveyor belt 11 transports piston head 28 to be processed to the position sensor. After the sensor detects piston head 28 to be processed, it sends a signal to the external control system. The control system immediately shuts down the main motor 4, and the indexing, conveying and pushing actions are all suspended.

[0147] Grab and transfer process: The control system starts the first micro motor to drive the third link 29 to swing down to above the conveyor belt, and simultaneously starts the second micro motor to extend the telescopic rod 30, and rotates the chuck 31 to descend and clamp the piston head 28 to be processed; then the first micro motor swings the third link 29 in the opposite direction to transfer the piston to the processing station inside the machining center 8.

[0148] Composite machining operation: After the piston head 28 to be processed is sent into the machining center, the third micro motor is started to drive the rotating chuck 31 to rotate synchronously with the piston, and the machining center tool completes multiple cutting operations on the piston.

[0149] Implementation method of the present invention:

[0150] The die-cast piston head 28 to be processed is placed sequentially on the lifting plate 2101 inside each mold compartment 20 of the mounting disc 19 to ensure that the piston is placed stably without tilting.

[0151] When the operator issues the running command, the main motor 4 starts to run continuously, and the main shaft 1202 outputs power synchronously to drive three sets of actuators: the conveyor belt 11 circulates and conveys, the intermittent rotation mechanism drives the mounting disc 19 to intermittently index, and the pushing mechanism continuously reciprocates to perform the pushing preparation action.

[0152] The main shaft 1202 drives the first spur gear 27 to mesh with the first rack plate 26, the integrated rack frame slides back and forth, the second rack plate 25 intermittently meshes with the second spur gear 23, the mounted disc 19 rotates one station in a step, and the mold chamber 20 loaded with pistons rotates sequentially to the lifting station in front of the conveyor belt.

[0153] When the mold chamber 20 containing the piston rotates to directly above the arc-shaped protrusion 1001 of the annular base 10, the bottom fixing rod 21 of the mold chamber rises along the slope of the arc-shaped protrusion, and the lifting plate 2101 rises upward, completely pushing the piston head 28 to be processed out of the surface of the mounting disc 19; at this time, the toothless section of the second rack plate 25 corresponds to the second spur gear 23, and the mounting disc 19 automatically stops and remains stationary, reserving time for the material pushing operation;

[0154] The left turntable 12 of the main shaft 1202 rotates synchronously with the main shaft. The eccentric cam shaft 1201 drives the L-shaped rod 13 to slide back and forth. Through the linkage of the slider 14, the first connecting rod 16, the vertical sliding rod 15, and the second connecting rod 17, the horizontal sliding rod 22 drives the push rod 2201 to extend forward and abut against the piston tail, and smoothly push the piston head 28 to be processed onto the conveyor belt 11. After the push is completed, the push mechanism automatically resets.

[0155] Conveyor belt 11 continuously transports the piston backward. When the piston head 28 to be processed moves to the detection area of ​​the position sensor below the first T-beam 9, the sensor sends a workpiece arrival signal to the external program.

[0156] After receiving the sensor signal, the control system immediately shuts down the main motor 4, and stops the conveyor belt 11, the indexing disc 19, and the pushing and pushing actions to avoid interference between the conveying and gripping actions.

[0157] The first micro motor drives the third link 29 to swing downwards above the conveyor belt 11. The second micro motor drives the telescopic rod 30 to extend downwards. The rotating chuck 31 descends and clamps the piston head 28 to be processed. The first micro motor rotates the third link 29 in the opposite direction, moving the rotating chuck 31 holding the piston to the machining station inside the machining center 8. The third micro motor is started to drive the rotating chuck 31 to rotate synchronously with the piston head 28 to be processed. The machining center tool sequentially completes the complete set of composite machining processes, including piston outer circle cutting, inner hole boring, end face drilling, and edge deburring.

[0158] This invention uses only one main motor as the power source for all the preceding processes. It achieves three main actions: synchronous drive of the main shaft to the conveyor belt, intermittent indexing rotation of the mounting disc, and automatic material pushing by the push rod. This eliminates the need for multiple independent motors to control each mechanism separately. The movement rhythms of each mechanism are naturally matched, eliminating rhythm misalignment, material jamming, and indexing deviation faults. This simplifies the equipment control program and reduces debugging and maintenance costs.

[0159] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-process combined machining tool for compressor pistons, characterized in that: Includes a frame, and a conveying mechanism, intermittent rotation mechanism, lifting and demolding mechanism, material pushing mechanism, transfer mechanism and machining center mounted on the frame; The frame is divided into three layers: upper, middle and lower. The front side of the middle frame is provided with a mounting disc (19). The mounting disc (19) is provided with a number of mold compartments (20) at equal angles around its own center. Each mold compartment (20) is provided with a lifting plate (2101). The mold compartment (20) is provided with a piston head (28) to be processed. The piston head (28) to be processed is detachably located on the upper part of the lifting plate (2101). A conveyor belt (11) is installed inside the middle frame. The conveyor belt (11) is located behind the mounting disc (19). A machining center (8) is located behind the conveyor belt (11). The machining center (8) is located on the upper frame. A transfer mechanism is also provided on the upper frame. The transfer mechanism is located in front of the machining center and is controlled by an external program. The conveying mechanism is located on the right side of the lower frame and is used to drive the conveyor belt (11) to run; The intermittent rotation mechanism is located in the lower frame and is used to control the intermittent rotation of the mounting disk (19), which is driven by the transmission mechanism. The lifting and demolding mechanism is located in the mold compartment (20) and is used to control the up and down movement of the lifting plate (2101). The mounting disc (19) drives the lifting and demolding mechanism to work by rotating. The pushing mechanism is located at the upper end of the mounting disc (19) and is used to push the piston head (28) to be processed that protrudes from the mounting disc (19) backward onto the conveyor belt (11). The pushing mechanism is driven by the conveyor mechanism. The piston head (28) to be processed, pushed by the pushing mechanism onto the conveyor belt (11), is conveyed to the designated position by the conveyor belt (11), and then transferred by the transfer mechanism to the processing center for composite processing.

2. The multi-process combined machining tool for compressor pistons according to claim 1, characterized in that: The frame includes a first support rod (1), a second support rod (101), a bottom box (2), a middle side plate (6), an upper side plate (7), a first T-beam (9), a convex plate (701), and a placement plate (3); The same base box (2) is fixed between the lower parts of the four first support rods (1). The base box (2) is arranged through the front and back. The upper left and right sides of the base box (2) are respectively provided with middle side plates (6). The two middle side plates (6) are respectively fixed on the upper ends of the two first support rods (1) on the corresponding sides. The upper ends of the two middle side plates (6) are respectively fixed with upper side plates (7), and the front ends of the two upper side plates (7) are connected by the two ends of the cross plate of the first T-shaped beam (9); The two upper side plates (7) are respectively provided with protruding plates (701) at their rear ends. The bottom of the machining center is provided with the vertical plate of the second T-shaped beam (801). The two ends of the horizontal plate of the second T-shaped beam (801) are respectively fixedly connected to the inner wall of the corresponding side protruding plate (701). A placement plate (3) is provided on the outer side of the middle side plate (6) located on the right side, and two second support rods (101) are respectively provided on the lower part of the outer end of the placement plate (3). The conveyor belt (11) is installed between the two central side plates (6); The conveying mechanism is located at the upper end of the placement plate (3); The intermittent rotation mechanism is located inside the bottom box (2); The transfer mechanism is located at the upper end of the first T-beam (9).

3. The multi-process combined machining tool for compressor pistons according to claim 2, characterized in that: The transmission mechanism includes a main motor (4), a first transmission wheel (5), a second transmission wheel (501), a transmission belt (502), and a main shaft (1202). The two ends of the conveyor belt (11) are respectively rotatably disposed between the two middle side plates (6) by pulleys. The pulley located on the rear side rotatably passes through the corresponding middle side plate (6) and is fixedly provided with a first transmission wheel (5). A second transmission wheel (501) is fixedly mounted on the right side wall of the base box (2) via a main shaft (1202), and the same transmission belt (502) is fitted on the outer side of the first transmission wheel (5) and the second transmission wheel (501). The upper end of the placement plate (3) is fixedly provided with a main motor (4), and the output shaft of the main motor (4) is fixedly connected to the second transmission wheel (501); The main shaft (1202) drives the intermittent rotation mechanism and the pusher mechanism to work by rotating.

4. The multi-process combined machining tool for compressor pistons according to claim 3, characterized in that: The intermittent rotation mechanism includes a first spur gear (27), a first rack plate (26), a vertical connecting plate (24), a second spur gear (23), a second rack plate (25), and a first fixed shaft (1901). The first end of the first fixed shaft (1901) is fixedly provided at the center of the lower end of the mounting disc (19). The second end of the first fixed shaft (1901) is rotatably provided on the top wall of the bottom box (2). A second spur gear (23) is fixedly provided on the outer wall of the second end of the first fixed shaft (1901). A second rack plate (25) is meshed on the left side of the second spur gear (23). The second rack plate (25) is slidably provided on the upper end of the bottom box (2). The lower front end of the second rack plate (25) is provided with the first end of the vertical connecting plate (24), and the rear end of the second end of the vertical connecting plate (24) is fixedly provided with the first rack plate (26). The first rack plate (26) is slidably disposed on the upper end of the bottom wall of the bottom box (2); The vertical connecting plate (24) is movably disposed on the front side of the base box (2), and the first spur gear (27) is fixedly sleeved on the outer wall of the main shaft (1202). The first spur gear (27) is rotatably disposed in the base box (2), and the first spur gear (27) and the first rack plate (26) mesh with each other. The teeth on the second rack plate (25) are intermittently arranged according to the number of the mold chamber (20) to achieve intermittent rotation of the mounting disk (19).

5. The multi-process combined machining tool for compressor pistons according to claim 4, characterized in that: The lifting and demolding mechanism includes a fixed rod (21), an annular base (10), and an arc-shaped protrusion (1001). An annular base (10) is fixed between the front ends of the two middle side plates (6) by a second fixed shaft. The first fixed shaft (1901) rotates through the annular base (10). An arc-shaped protrusion (1001) is provided at the rear of the upper end of the annular base (10). The arc-shaped protrusion (1001) is located at the lower front side of the conveyor belt (11). The bottom of each of the lifting plates (2101) is provided with the first end of a fixing rod (21), and the second end of each of the fixing rods (21) is slidably connected to the bottom of the mold chamber (20) on the corresponding side, and both abut against the upper surface of the annular base (10) and the arc-shaped protrusion (1001). When the second end of one of the fixed rods (21) abuts against the uppermost end of the arc-shaped protrusion (1001), the corresponding lifting plate (2101) can push the mounted piston head (28) out of the upper surface of the mounting disc (19).

6. The multi-process combined machining tool for compressor pistons according to claim 3, characterized in that: The pushing mechanism includes a slider (14), a first connecting frame (1401), a first connecting rod (16), a vertical sliding rod (15), a second connecting frame (1501), a second connecting rod (17), a horizontal sliding rod (22), a pushing rod (2201), a transmission shaft (18), an L-shaped rod (13), a turntable (12), and a convex shaft (1201). The left end of the main shaft (1202) is rotatably connected to the left side wall of the bottom box (2) and a turntable (12) is fixed thereon. A convex shaft (1201) is provided at the eccentric position of the outer wall of the turntable (12). An L-shaped rod (13) is slidably provided on the outer wall of the middle side plate (6) on the left side. The vertical rod of the L-shaped rod (13) extends downward to the outer side of the turntable (12). A first through groove (1301) is provided on the vertical rod of the L-shaped rod (13). The convex shaft (1201) and the first through groove (1301) are slidably connected. The first end of the transmission shaft (18) is provided on the inner wall of the crossbar end of the L-shaped rod (13); The first T-beam (9) has a second through groove (902) on its vertical rod. A slider (14) slides through the second through groove (902). The upper end of the slider (14) is provided with a first connecting frame (1401). The first end of the first connecting rod (16) is rotatably provided in the first connecting frame (1401). The vertical end of the first T-beam (9) is provided with a rectangular through hole (903), and a vertical slide rod (15) slides through the rectangular through hole (903). A second connecting frame (1501) is provided on the upper rear wall of the vertical slide rod (15), and the second end of the first connecting rod (16) is rotatably disposed in the second connecting frame (1501). The lower end of the vertical slide bar (15) is provided with a third fixed shaft on both sides, and the first end of the second connecting rod (17) is rotatably sleeved on the outer wall of the two third fixed shafts respectively; A transverse slide bar (22) is mounted on the upper end of the mounting disc (19). A fourth fixed shaft is provided on both sides of the front end of the transverse slide bar (22). The second ends of the two second connecting rods (17) are respectively rotatably sleeved on the outer wall of the corresponding side of the fourth fixed shaft. The rear end of the transverse slide bar (22) is provided with a push rod (2201). The piston head (28) to be processed, which protrudes from the disk (19), can be transferred to the upper end of the conveyor belt (11) by the push rod (2201).

7. The multi-process combined machining tool for compressor pistons according to claim 2, characterized in that: The transfer mechanism includes a position sensor, a third connecting frame (901), a third connecting rod (29), a hollow barrel (2901), a telescopic rod (30), and a rotating chuck (31). The first T-beam (9) has a third connecting frame (901) at the rear end of the horizontal plate. The third connecting frame (901) has a third connecting rod (29) rotatably mounted in the middle. The third connecting rod (29) is driven to rotate by a first micro motor. The outer end of the third link (29) is fixedly provided with a hollow barrel (2901), and a telescopic rod (30) is slidably provided inside the hollow barrel (2901). The telescopic rod (30) is driven to slide by a second micro motor. The outer end of the telescopic rod (30) is provided with a rotating chuck (31), which is driven to rotate by a third micro motor; A position sensor is provided at the lower end of the cross plate of the first T-beam (9), and the position sensor is located above the conveyor belt (11); When the position sensor senses the incoming piston head (28), the main motor (4) is turned off. The first micro motor and the second micro motor cooperate to make the rotating chuck (31) clamp the piston head (28) located below and transport it to the machining center (8). The third micro motor is started to start the machining. When the machining is completed, the main motor (4) is turned on to start the next machining. The main motor (4), the first micro motor, the second micro motor, and the third micro motor are all controlled by an external program to start and stop.

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