A multi-station, multi-axis linkage machining device

Abstract

This invention provides a multi-station, multi-axis linkage machining device, including a machine tool body. The machine tool body is equipped with multiple fixtures and cutting tools, the same number as the fixtures, capable of synchronously machining materials on the fixtures. This multi-station, multi-axis linkage machining device has a compact structure, enables simultaneous machining of multiple parts, and achieves high machining efficiency and good results.

Description

Technical Field

[0001] This invention relates to a processing device, and more particularly to a multi-station, multi-axis linkage processing device. Background Technology

[0002] A machine tool is a machine tool that primarily uses a cutting tool to perform turning operations on rotating workpieces. Drills, reamers, taps, dies, and knurling tools can also be used on machine tools for corresponding machining operations. Machine tools are mainly used for machining shafts, discs, sleeves, and other workpieces with rotating surfaces, and are the most widely used type of machine tool in machinery manufacturing and repair shops.

[0003] Our company needs to process a workpiece that is similar to a semi-ellipse, with an elliptical arc surface and an end face. The arc surface is relatively smooth, and the end face needs to be machined to create a cavity. Because the outer wall of the workpiece is inclined, ordinary tooling fixtures cannot achieve fast and reliable clamping, which greatly reduces production accuracy and efficiency, and affects the product qualification rate. At the same time, existing technologies can only achieve single clamping and processing, resulting in long loading and unloading times, low processing and production efficiency, and increased processing costs per part. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-station, multi-axis linkage machining device that is easy and labor-saving to clamp, has high loading and unloading efficiency, and high machining accuracy.

[0005] The present invention provides a multi-station multi-axis linkage machining device, which includes a machine tool body 1, wherein the machine tool body 1 is provided with a plurality of fixtures 2 and cutting tools that are the same number as the fixtures 2 and can synchronously process the materials on the fixtures.

[0006] Furthermore, the machine tool body 1 is provided with a fixture slide 14 capable of horizontal sliding back and forth. A fixture mounting plate 142 is rotatably mounted on the fixture slide 14. The rotation axis of the fixture mounting plate 142 is perpendicular to the sliding direction of the fixture slide 14. The fixtures 2 are equidistantly arranged along the rotation axis of the fixture mounting plate 142. The front and rear ends of the fixture slide 14 serve as a blanking station and a machining station, respectively. A tool holder capable of horizontal and vertical sliding is provided directly above the machining station. The horizontal sliding direction of the tool holder is perpendicular to the sliding direction of the fixture slide 14. A spindle 171 is provided on the tool holder. There are multiple spindles, which are equidistantly arranged along the horizontal sliding direction of the tool holder and correspond one-to-one with the fixtures 2.

[0007] Furthermore, the machine tool body includes a base 11 and a frame 12 disposed at the rear end of the base 11. The fixture slide 14 is mounted on the base 11, the tool post is mounted on the frame 12, and the frame 12 is provided with a dust suction port connected to an air extraction device. The dust suction port is located at the rear end of the machining station, and a screen 18 is provided on the dust suction port.

[0008] Furthermore, the tool holder is equipped with the same number of laser marking devices as the spindle. The laser marking devices are equidistantly arranged along the horizontal sliding direction of the tool holder and correspond one-to-one with the fixture 2, and are used to laser mark the material on the fixture 2.

[0009] Furthermore, the clamp 2 includes a clamp body, on which a clamping cavity 20 with an open upper end is provided. The inner wall of the clamping cavity 20 is an inclined surface that can fit against the outer wall of the material. The bottom of the clamping cavity is provided with a blowing and suction ejecting mechanism 6 that can perform air extraction to fix the material under negative pressure and eject the material from the clamping cavity to achieve discharge.

[0010] Furthermore, the lower end of the clamp body is provided with a mounting hole, which is a stepped hole that is smaller at the top and larger at the bottom and communicates with the clamping cavity. The blowing and suction material ejection mechanism 6 is installed at the larger end of the mounting hole.

[0011] Furthermore, the blowing and suction top material mechanism 6 includes a cylindrical cylinder 61. A partition 62 is provided inside the cylinder 61, which divides the cylinder 61 into a first chamber 602 and a second chamber 602. A sliding plug 65 is slidably installed in the first chamber, and a sliding plug rod 64 is fixed on the sliding plug 65. The head of the sliding plug rod 64 passes through the cylinder and extends into the small hole end of the mounting hole, and the tail of the sliding plug rod 64 passes through the second chamber and extends out of the cylinder. An air passage 640 is formed inside the sliding plug rod 64. A first air hole 641 communicating with the air passage is opened at the head of the sliding plug rod. A second air hole 642 communicating with the air passage is provided on the side wall of the sliding plug rod 64 located in the second chamber. First holes for driving the sliding plug to move are provided at both ends of the first chamber, and second holes for evacuating and inflating are provided on the side wall of the second chamber.

[0012] When the slider 65 is in the lower limit position, the head of the slider rod 64 is located at the lower end of the clamping cavity. At this time, the air pumping through the second hole can generate negative pressure on the clamping cavity.

[0013] When the slide plug 65 is in the upper limit position, the head of the slide plug rod 64 is located in the clamping cavity, which can push out the material in the clamping cavity, and the second hole can clean the inner wall of the clamping cavity by inflating it.

[0014] Furthermore, there are at least four first holes, which are evenly distributed circumferentially on the sidewall of the slide rod.

[0015] Furthermore, the side wall of the clamping cavity is provided with an annular groove 20a, and an annular airbag 51 is provided in the annular groove. The inner wall of the airbag 51 is the working surface 51a and can contact the outer wall of the material. When the airbag is deflated, the working surface is located in the annular groove 20a; when the airbag is inflated, the working surface is located in the clamping cavity and can contact the side wall of the material.

[0016] Furthermore, at least three arc-shaped support plates 52 are evenly distributed around the outer wall of the airbag. The outer wall of the arc-shaped support plate is provided with a guide rod 53. The axis of the guide rod 53 is perpendicular to and intersects the axis of the clamping cavity. The side wall of the annular groove is provided with a guide hole for inserting the guide rod and achieving sliding fit. The annular mounting groove is provided with an elastic component that makes the arc-shaped support plate have an inward movement tendency.

[0017] The multi-station, multi-axis linkage machining device of this invention has the following advantages: It employs a multi-axis linkage mechanism, enabling the machining of complex curved surfaces of parts with good machining results and simple operation; the multi-fixture and multi-tool structure allows for the simultaneous clamping and machining of multiple parts, resulting in high machining efficiency and low machining costs; the fixtures are reconfigured for convenient clamping and high loading efficiency; a blow-suction ejection mechanism within the fixture enables negative pressure clamping and ejection, while simultaneously cleaning the inner wall of the clamping cavity, resulting in good clamping stability, high precision, and high reliability; and an airbag structure allows for contact with the outer wall of the part, forming a sealed cavity and improving clamping efficiency. The device boasts high clamping strength and reliability. An arc-shaped support plate provides a mounting carrier for the airbag, offering expansion space during inflation to improve centering and fit. Simultaneously, it restricts inward movement of the airbag during deflating, ensuring the working surface remains outside the clamping cavity, thus enhancing clamping reliability and stability. A dust extraction structure removes particles and dust during processing, improving the working environment and promoting environmental friendliness. A marking device enables simultaneous marking of parts, increasing production efficiency and profitability. This multi-station, multi-axis linkage processing device is compact, enabling simultaneous processing of multiple parts with high efficiency and excellent results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the multi-station, multi-axis linkage machining device of the present invention;

[0019] Figure 2 This is a side view of the multi-station, multi-axis linkage machining device of the present invention;

[0020] Figure 3 This is a schematic diagram of the multi-station, multi-axis linkage machining device of the present invention from another angle;

[0021] Figure 4This is a schematic diagram of the fixture structure of the multi-station multi-axis linkage machining device of the present invention;

[0022] Figure 5 This is a schematic diagram of the fixture of the multi-station multi-axis linkage machining device of the present invention from another angle;

[0023] Figure 6 This is a cross-sectional view of the fixture of the multi-station multi-axis linkage machining device of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of section A in the middle;

[0025] Figure 8 for Figure 6 Enlarged view of section B;

[0026] Figure 9 This is a schematic diagram of the material ejection state of the blowing and suction ejection mechanism of the multi-station multi-axis linkage processing device of the present invention;

[0027] Figure 10 This is a schematic diagram of the airbag structure of the multi-station multi-axis linkage machining device of the present invention;

[0028] Figure 11 This is a schematic diagram of the blowing and suction top material mechanism of the multi-station multi-axis linkage processing device of the present invention;

[0029] Figure 12 This is a cross-sectional view of the blowing and suction ejector mechanism of the multi-station multi-axis linkage processing device of the present invention;

[0030] Figure 13 This is an exploded structural diagram of the blowing and suction top material mechanism of the multi-station multi-axis linkage processing device of the present invention. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] See Figures 1-13 The present invention provides a multi-station multi-axis linkage machining device, which includes a machine tool body 1, and multiple fixtures 2 and the same number of cutting tools as the fixtures 2 are provided on the machine tool body 1. The cutting tools correspond one-to-one with the fixtures and can realize synchronous processing of materials (part semi-finished products) on the fixtures.

[0033] The machine tool body 1 is equipped with a fixture slide 14 and a tool post. The fixture slide 14 can slide horizontally in the front-back direction. A fixture mounting plate 142 is rotatably mounted on the fixture slide 14. The rotation axis of the fixture mounting plate 142 is perpendicular to the sliding direction (axis) of the fixture slide 14. Multiple fixtures 2 are equidistantly arranged along the rotation axis of the fixture mounting plate 142. The front and rear ends of the fixture slide 14 serve as the unloading station and the machining station, respectively. When the fixture slide 14 slides to the front end, it is the unloading station, used for unloading and loading. Loading can be done manually or by a robot. When the fixture slide 14... When it slides to the rear end, it is a processing station. At this time, the material on the fixture is processed by the tool. The tool holder is located directly above the processing station and can slide in both horizontal and vertical directions. The horizontal sliding direction of the tool holder is perpendicular to the sliding direction of the fixture slide 14, which means it can slide left and right. There are multiple spindles 171 on the tool holder and they are equidistant from each other along the horizontal sliding direction of the tool holder. The distance between two adjacent spindles is the same as the distance between two adjacent fixtures. They correspond one-to-one with the fixtures 2, that is, one spindle corresponds to one fixture. One tool is set on one spindle to achieve synchronous processing and high processing efficiency.

[0034] In this application, the machine tool body includes a base 11 and a frame 12 disposed at the rear end of the base 11. The fixture slide 14 is mounted on the base 11, and the tool post is mounted on the frame 12. For details, please refer to [reference needed]. Figures 1-3 The upper surface of the base 11 is horizontal and serves as the mounting surface. Two first slide rails 131 are provided on the mounting surface. The first slide rails 131 are horizontally arranged and oriented front to back. The clamp slide 14 is slidably fitted on the first slide rails 131 and can achieve horizontal sliding in the front to back direction. A first screw 132 is rotatably installed between the two first slide rails 131. The first screw 132 is parallel to the first slide rails 131 and is threadedly connected to the nut at the bottom of the clamp slide 14. By rotating the first screw, the clamp slide 14 can be driven to slide back and forth. A first drive motor is provided on the base 11. The output shaft of the first drive motor is connected to the first screw and is used to drive the first screw to rotate, thereby driving the clamp slide 14 to move back and forth.

[0035] The fixture slide is a cuboid, specifically a long strip in this embodiment. Support seats 141 are provided at both ends of the fixture slide, and shafts are rotatably mounted on the two support seats 141. The two shafts are horizontal and coaxial, and their rotation axis is perpendicular to the length direction of the first slide rail 31. The fixture mounting plate 142 is a rectangular plate, which is fixed between the two shafts and can rotate horizontally. A second drive motor 143 is fixed at the end of the fixture slide 14. The output shaft of the second drive motor is connected to the shaft and is used to control the angle of the fixture mounting plate. In this embodiment, the second drive motor is a servo motor, which can achieve precise control.

[0036] The frame 12 is located at the rear end of the base 11, and the tool holder is mounted on the frame 12. Specifically, two second slide rails 151 are provided on the frame 12, which are horizontally arranged. A horizontal slide block 161 is horizontally mounted on the second slide rails 151, enabling horizontal sliding in the left and right directions. A second screw 152 is rotatably mounted between the two second slide rails 151. The second screw 152 is parallel to the second slide rails 151 and is threadedly connected to a nut at the rear end of the horizontal slide block. The rotation of the second screw can drive the horizontal slide block 161 to slide left and right. A third drive motor is provided on the frame 12. The output shaft of the third drive motor is connected to the second screw and is used to drive the second screw to rotate, thereby driving the horizontal slide block to move left and right. Two third slide rails are provided at the front end of the horizontal slide block 161, which are vertically arranged. The system includes a vertical slide block 162 mounted on the third slide rail, enabling vertical sliding. A third screw is rotatably mounted between the two third slide rails, parallel to the third slide rails. The third screw is threadedly connected to a nut at the rear end of the vertical slide block. Rotation of the third screw drives the vertical slide block 162 to slide vertically, thus achieving lifting. A fourth drive motor is mounted on the horizontal slide block, with its output shaft connected to the third screw to drive the screw to rotate, thereby driving the vertical slide block to move up and down, achieving lifting. A mounting base 17 is fixed at the lower end of the lifting slide block. The mounting base has an L-shaped cross-section and multiple spindles 171 are mounted on it, equidistantly arranged along the sliding direction of the horizontal slide block. In this embodiment, there are four spindles, which are motors (shafts) and are vertically arranged. A cutting tool is fixed at the lower end of each spindle.

[0037] The frame 12 includes two columns and a crossbeam set on the top of the two columns, forming a gantry structure. A horizontal slide is installed on the crossbeam. The distance between the two columns is located directly behind the fixture slide, forming a rectangular opening. This opening serves as a dust collection area. A dust collection port is provided in the dust collection area, which is connected to an air extraction device for collecting dust and particles generated during processing. A screen 18 is provided on the dust collection port. The screen 18 is a metal plate with several small holes for dust collection while preventing large objects from entering. It has a certain structural strength.

[0038] Specifically, the tool holder is equipped with the same number of laser marking devices as the spindle on the mounting base 17. The laser marking devices are equidistant along the horizontal sliding direction of the tool holder and correspond one-to-one with the fixture 2. They are used to laser mark the materials on the fixture 2. After processing, the marking is automatic, which greatly improves production efficiency.

[0039] In this application, there are multiple clamps 2, preferably 4-6, which are equidistantly arranged along the rotation axis of the clamp mounting plate 142. Each clamp 2 includes a clamp body, which is cylindrical in shape. Mounting plates 21 are fixed on both sides of the clamp body. Mounting holes are provided on the mounting plates for fixing the clamp body to the clamp mounting plate. A clamping cavity 20 with an open upper end is provided on the clamp body. The axis of the clamping cavity is perpendicular to the rotation axis of the clamp mounting plate. By rotating the clamp mounting plate, the opening orientation of the clamping cavity can be adjusted to realize loading, processing, and unloading. The inner wall of the clamping cavity 20 is an inclined surface that can conform to the outer wall of the material. At the same time, a blowing and suction lifting mechanism 6 is provided at the bottom of the clamping cavity. The blowing and suction lifting mechanism 6 can draw air to create negative pressure to fix the material (parts), and at the same time, it can push the material out of the clamping cavity to achieve discharge. When loading, the clamping plate rotates and the clamping cavity is vertically upward. The material is put in manually or by a robot. The blowing and suction lifting mechanism 6 draws air and creates negative pressure in the clamping cavity, thereby fixing the material. When unloading, the clamping plate rotates and the clamping cavity is downward. The blowing and suction lifting mechanism 6 inflates and pushes out, thereby releasing the material from the clamping cavity to achieve discharge. At the same time, the inversion and inflation of the clamping cavity can clean the surface of the clamping cavity for the next clamping, which greatly improves the work efficiency and clamping reliability and stability.

[0040] Specifically, a mounting hole is provided at the lower end of the fixture body, which is coaxial with the clamping cavity. The mounting hole is a stepped hole with a smaller upper end and a larger lower end. The smaller upper end of the mounting hole is connected to the clamping cavity, and the blowing and suction lifting mechanism 6 is installed at the larger end of the mounting hole.

[0041] The structure of the blowing and suction top material mechanism 6 is described in detail below:

[0042] See Figures 8-13The blowing and suction top material mechanism 6 includes a cylindrical cylinder 61. An annular protrusion is provided on the outer wall of the cylinder 61, and the end face of the annular protrusion forms a stepped surface for installation and limiting. A partition 62 is provided inside the cylinder 61, dividing the cylinder 61 into a first chamber 602 and a second chamber 602. A sliding plug 65 is slidably mounted in the first chamber. First holes are provided at both ends of the first chamber, which are connected to an air source for driving the sliding plug axially. A sliding plug rod 64 is fixed to the sliding plug 65. The head of the sliding plug rod 64 passes through the cylinder and extends into the small hole end of the mounting hole. When the sliding plug rod is at its lower limit position, the head end of the sliding plug rod 64 is lower than the bottom surface of the clamping cavity, meaning its head is completely located within the small hole of the mounting hole. At this time, it does not contact the parts in the clamping cavity. There is a gap between the outer wall of the head of the sliding plug rod and the inner wall of the small hole of the mounting hole, which is used to allow gas flow and realize gas extraction and release. After passing through the second chamber, the tail extends out of the cylinder body; an air passage 640 is formed inside the sliding rod 64. In this embodiment, a central hole with an open lower end is formed inside the sliding rod, and a plug 66 is provided at the end of the central hole, thereby making the central hole an air passage. At the same time, a first air hole 641 communicating with the air passage is opened at the head of the sliding rod. There are at least four first holes, which are evenly distributed around the side wall of the sliding rod. The first air hole is located in the first hole of the mounting hole. Through the extension of the sliding rod, it can extend into the clamping cavity for gas flushing and cleaning of the clamping cavity. At the same time, a second air hole 642 communicating with the air passage is provided on the side wall of the sliding rod 64. The second air hole 642 is located in the second chamber 602. The side wall of the second chamber is provided with a second hole. The second air hole is connected to the air source and can realize inflation and deflation. It realizes deflation and inflation of the clamping cavity through the second air hole, the air passage, and the first air hole.

[0043] When the slub 65 is in the lower limit position, the head of the slub rod 64 is located at the lower end of the clamping cavity, that is, at the small hole end of the mounting hole. At this time, the first air hole is also located in the small hole of the mounting hole. At this time, the air can be drawn through the second hole to generate negative pressure in the clamping cavity, thereby achieving negative pressure fixation of the material in the clamping cavity.

[0044] When the slide plug 65 is in the upper limit position, the head of the slide plug rod 64 is located in the clamping cavity, which can push out the material in the clamping cavity. At this time, the first orifice is located at the lower end of the clamping cavity. By inflating the second orifice, the inner wall of the clamping cavity can be cleaned.

[0045] A micro switch is provided at the large end of the mounting hole. The micro switch is located on the movement path of the sliding rod. When the sliding rod 64 is at the lower limit position, it can trigger the micro switch to send a sensing signal, indicating that the blowing and suction top material mechanism 6 is reset. At this time, it is in the clamping state, that is, material can be put into the clamping cavity.

[0046] In this application, the cylinder body 61 is cylindrical, and a chamber with an open lower end is formed on the cylinder body. The chamber is a stepped hole with a smaller upper end and a larger lower end. The stepped hole has two stepped surfaces. A partition is fixed on the upper stepped surface to form a sealed first chamber 601. An end plate 63 is fixed on the lower stepped surface, and a sealed second chamber is formed between the end plate and the partition. A sliding plug hole for a sliding plug rod to pass through is provided on both the partition and the end plate. An annular groove is provided on the inner wall of the sliding plug hole, and a sealing ring is provided in the annular groove.

[0047] The blowing and suction top material mechanism 6 is installed in the large hole of the mounting hole at the lower end of the clamping cavity. At the same time, an internal thread is provided at the large hole end of the mounting hole, and a pressure ring 63 is threaded to it. The pressure ring is circular in shape, with a rubber layer on its top surface, and contacts the lower end of the blowing and suction top material mechanism 6 to reduce vibration and noise, and to fix the blowing and suction top material mechanism 6.

[0048] To improve the efficiency and effectiveness of negative pressure fixing, an annular groove 20a is provided on the side wall of the clamping cavity. This annular groove is coaxial with the clamping cavity and is set along the edge of the clamping cavity. An airbag 51 is provided in the annular groove. The airbag is annular and has the same shape as the inner wall of the clamping cavity. The inner wall of the airbag 51 is the working surface 51a, which can contact the outer wall of the material. The airbag is connected to an air source, which can realize the inflation (inflation) and deflation (de-inflation) of the airbag. When the airbag is de-inflated, its working surface is located in the annular groove 20a, and at this time, it cannot contact the outer wall of the material. When the airbag is inflated, the working surface is located in the clamping cavity and can contact the side wall of the material, so as to improve the sealing performance of the blowing and suction top material mechanism 6 when de-inflating and improve the clamping effect. In this embodiment, at least three arc-shaped support plates 52 are evenly distributed on the outer wall of the airbag. Preferably, There are 6-10 arc-shaped support plates. Each arc-shaped support plate has a guide rod 53 on its outer wall. The axis of the guide rod 53 is perpendicular to and intersects the axis of the clamping cavity. A guide hole is provided on the side wall of the annular groove. The axis of the guide hole is perpendicular to and intersects the axis of the clamping cavity, allowing the guide rod to be inserted for a sliding connection. An elastic component is provided within the annular mounting groove. This elastic component causes the arc-shaped support plate to have an inward tendency to move. In this embodiment, the elastic component is a wave spring, which has a small installation space. This structure allows the airbag to have outward expansion space. That is, when the material is fully placed in, the airbag deforms radially outward, so that the inner wall of the clamping cavity can completely fit the outer wall of the material. Simultaneously, the elastic mechanism ensures the centering of the airbag and, during inflation, promotes its working surface to fit the outer wall of the material, improving clamping efficiency and reliability.

[0049] To facilitate processing and reduce production costs and difficulties, this application provides an installation port at the opening end of the clamping cavity. The installation port is coaxial with the clamping cavity and is a stepped hole. An annular sleeve is provided at the large hole end of the sleeve 4. The inner wall of the sleeve 4 is inclined and serves as the side wall of the clamping cavity. The lower end of the sleeve contacts the stepped surface of the stepped hole and achieves axial limiting. The small hole of the installation port forms the annular groove for installing the airbag.

[0050] The following describes the working method of the multi-station, multi-axis linkage machining device of the present invention:

[0051] Loading: The clamp slide 14 moves forward to the limit position, i.e. the loading station. The second drive motor 143 drives the clamp mounting plate to rotate, so that the clamping cavity on the clamp on the clamp mounting plate 142 faces upward. The materials are placed one by one into the clamping cavity of each clamp by manual or robotic arm.

[0052] Material clamping: After the material is placed into the clamping cavity, under the action of gravity, the outer wall of the material basically contacts the inner wall of the clamping cavity. A detection sensor is installed inside the clamping cavity to detect the material. When material is detected, the airbag is inflated, and the inner wall of the airbag, i.e., the working surface, extends radially inward and fits against the outer wall of the material. At the same time, the elastic component of the outer wall of the airbag exerts a certain radial inward thrust on the airbag, ensuring that its working surface fully fits against the outer wall of the material, thus forming a sealed chamber at the lower end of the clamping cavity. At this time, the blowing and suction top material mechanism 6 operates. Specifically, the side wall of the second chamber... The second orifice is used for evacuation. It evacuates the clamping cavity through the second air hole 642, air channel 640, and first air hole 641 in sequence, creating a negative pressure in the clamping cavity at the lower end of the working surface of the airbag. The force generated by the negative pressure pulls the material completely into the clamping cavity, making the outer wall of the material completely contact the inner wall of the clamping cavity, thereby achieving precise clamping of the material and ensuring processing accuracy. In order to ensure clamping reliability, an air pressure detection device is installed in the second cavity or on the pipeline connected to the second cavity to detect the air pressure. When the air pressure is abnormal, an alarm is issued. It is used to detect the negative pressure clamping function of the clamping cavity.

[0053] Material transfer: The fixture slide 14 moves sequentially to its limit position, i.e., the machining station;

[0054] The machining process involves rotating the fixture mounting plate and moving the cutting tool to perform precision machining on the material inside the fixture.

[0055] After processing, the fixture mounting plate rotates, causing the clamping cavity of the fixture to face downwards, emptying the debris from the material processing hole and vacuuming it through a dust extraction mechanism. Then, the fixture slide moves forward to its limit position, i.e., the loading position. At this time, the blowing and suction lifting mechanism 6 is activated. Specifically, the second chamber is inflated to release the negative pressure in the clamping cavity. At the same time, the airbag is evacuated and its working surface is positioned in the annular groove, separating it from the side wall of the material (part). Simultaneously, the sliding plug moves, causing the head of the sliding plug rod to extend to one side of the clamping cavity, contact the material, and push it out of the clamping cavity. Under the action of gravity, the material is detached from the clamping cavity. At the same time, the first air hole opened at the head of the sliding plug rod enters the clamping cavity, and the ejected gas cleans along the inner wall of the clamping cavity, removing particles, dust, or other debris residues from the inner wall of the clamping cavity, preparing for the next clamping.

[0056] Reset: After the material in the fixture has been unloaded, the piston resets and the head of the sliding rod retracts into the mounting hole, thus moving out of the clamping cavity; the fixture mounting plate rotates and the opening end of the clamping cavity faces upward, so as to carry out the next process of loading.

[0057] This invention relates to a multi-station, multi-axis linkage machining device. Employing a multi-axis linkage mechanism, it can machine complex curved surfaces of parts with excellent machining results and simple operation. The multi-fixture and multi-tool structure allows for simultaneous clamping and machining of multiple parts, resulting in high machining efficiency and low cost. The fixtures are redesigned for convenient clamping and high loading efficiency. A blow-suction ejection mechanism within the fixture enables negative pressure clamping and ejection, while simultaneously cleaning the inner wall of the clamping cavity, ensuring good clamping stability, high precision, and high reliability. An airbag structure is incorporated to contact the outer wall of the part, forming a sealed cavity and improving clamping efficiency and strength. The device features a high degree of precision and reliable clamping. An arc-shaped support plate provides a mounting surface for the airbag, offering expansion space during inflation to improve centering and fit. Simultaneously, it restricts inward movement of the airbag during deflating, ensuring the working surface remains outside the clamping cavity, thus enhancing clamping reliability and stability. A dust extraction structure removes particles and dust during processing, improving the working environment and promoting environmental friendliness. A marking device enables simultaneous marking of parts, increasing production efficiency and profitability. This multi-station, multi-axis linkage processing device is compact, enabling simultaneous processing of multiple parts with high efficiency and excellent results.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-station, multi-axis linkage machining device, characterized in that: The machine tool includes a machine tool body, which is provided with a plurality of fixtures and a number of cutting tools that are the same as the number of fixtures and can simultaneously process the materials on the fixtures; The clamp includes a clamp body, which has a clamping cavity with an open top. The inner wall of the clamping cavity is an inclined surface that can fit against the outer wall of the material. The bottom of the clamping cavity is provided with a blowing and suction ejection mechanism that can pump air to fix the material under negative pressure and eject the material from the clamping cavity to achieve discharge. The lower end of the clamp body is provided with a mounting hole, which is a stepped hole that is smaller at the top and larger at the bottom and communicates with the clamping cavity. The blowing and suction material ejection mechanism is installed at the larger end of the mounting hole. The blowing and suction top material mechanism includes a cylindrical cylinder body. A partition is provided inside the cylinder body, dividing it into a first chamber and a second chamber. A sliding plug is slidably mounted in the first chamber, and a sliding plug rod is fixed to the sliding plug. The head of the sliding plug rod passes through the cylinder body and extends into the small hole end of the mounting hole. The tail of the sliding plug rod passes through the second chamber and extends out of the cylinder body. An air passage is formed inside the sliding plug rod. A first air hole communicating with the air passage is opened at the head of the sliding plug rod. A second air hole communicating with the air passage is provided on the side wall of the sliding plug rod located in the second chamber. First holes for driving the sliding plug to move are provided at both ends of the first chamber, and second holes for evacuating and inflating are provided on the side wall of the second chamber. When the sliding plug is in the lower limit position, the head of the sliding plug rod is located at the lower end of the clamping cavity. At this time, the air pumping through the second hole can generate negative pressure on the clamping cavity. When the sliding plug is in the upper limit position, the head of the sliding plug rod is located in the clamping cavity, which can push out the material in the clamping cavity, and the second hole can clean the inner wall of the clamping cavity by inflating it. The clamping cavity has an annular groove on its side wall, and an annular air bladder is provided in the annular groove. The inner wall of the air bladder is the working surface and can contact the outer wall of the material. When the air bladder is deflated, the working surface is located in the annular groove; when the air bladder is inflated, the working surface is located in the clamping cavity and can contact the side wall of the material.

2. The multi-station, multi-axis linkage machining device as described in claim 1, characterized in that: The machine tool body is provided with a fixture slide that can slide horizontally back and forth. A fixture mounting plate is rotatably mounted on the fixture slide. The rotation axis of the fixture mounting plate is perpendicular to the sliding direction of the fixture slide. The fixtures are equidistantly arranged along the rotation axis of the fixture mounting plate. The front and rear ends of the fixture slide serve as a blanking station and a machining station, respectively. A tool holder that can slide horizontally and vertically is provided directly above the machining station. The horizontal sliding direction of the tool holder is perpendicular to the sliding direction of the fixture slide. The tool holder is provided with multiple spindles, which are equidistantly arranged along the horizontal sliding direction of the tool holder and correspond one-to-one with the fixtures.

3. The multi-station, multi-axis linkage machining device as described in claim 2, characterized in that: The machine tool body includes a base and a frame disposed at the rear end of the base. The fixture slide is mounted on the base, and the tool post is mounted on the frame. The frame is provided with a dust suction port connected to an air extraction device. The dust suction port is located at the rear end of the machining station and is provided with a screen plate.

4. The multi-station, multi-axis linkage machining device as described in claim 2, characterized in that: The tool holder is equipped with the same number of laser marking devices as the spindle. The laser marking devices are equidistantly arranged along the horizontal sliding direction of the tool holder and correspond one-to-one with the fixture, and are used to laser mark the material on the fixture.

5. The multi-station, multi-axis linkage machining device as described in claim 1, characterized in that: The first hole has at least four holes, which are evenly distributed circumferentially on the side wall of the slide rod.

6. The multi-station, multi-axis linkage machining device as described in claim 1, characterized in that: At least three arc-shaped support plates are evenly distributed around the outer wall of the airbag. The outer wall of the arc-shaped support plate is provided with a guide rod. The axis of the guide rod is perpendicular to and intersects the axis of the clamping cavity. The side wall of the annular groove is provided with a guide hole for inserting the guide rod and achieving sliding fit. The annular groove is provided with an elastic component that makes the arc-shaped support plate have an inward movement tendency.

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