Sheet workpiece built-in clamping device with rotary suction cup clamping head

Abstract

The sheet workpiece built-in clamping equipment comprises a main shaft seat, an air source seat and the rotary suction cup clamping head, and a cutter handle connector is arranged at the bottom of the main shaft seat; the air source seat is detachably connected to the lower part of the main shaft seat; a seat driving air source air path and a seat vacuum air source air path are respectively arranged on the air source seat; the rotary suction cup clamping head comprises a cutter handle assembly, a rotary air cylinder, a hollow suction cup rotating arm and a material suction cup. The cutter handle assembly is of an integrated structure composed of a cutter handle body and an air path block in a crossed mode. The rotating cylinder is fixed to the bottom of the handle body. Compared with the prior art, the main shaft base is used for driving the rotary suction cup clamping head to move and adsorb the sheet workpiece, the workpiece clamping function is achieved in the machine tool, the main shaft base is used for replacing a feeding and discharging mechanical arm, cost is greatly reduced, and the outer side space of the machine tool cannot be occupied. The rotary suction cup clamping head has the adsorption function and the rotation function, and the requirement for workpiece angle adjustment is met.

Description

Technical Field

[0001] The invention belongs to the technical field of grabbing and clamping, and in particular relates to an in-machine clamping device for a thin-sheet workpiece with a rotating suction cup clamping head. Background Art

[0002] When a CNC machine tool is used to process thin workpieces such as glass cover plates of mobile phones or tablet computers, it is necessary to load and unload the thin workpieces.

[0003] In the prior art, an independent loading and unloading robot is used to load a manipulator end effector (such as a gripper or a suction cup), which grips or sucks the workpiece. The loading and unloading robot carries the end effector and the thin workpiece and moves as a whole, thereby realizing loading and unloading of the thin workpiece.

[0004] The shortcomings of the existing technology are: a loading and unloading robot needs to be specially equipped outside the CNC machine tool, the equipment cost is high, and space needs to be provided outside the CNC machine tool to install the loading and unloading robot, resulting in a large overall space occupied by the equipment.

[0005] Therefore, it is necessary to provide a new thin-film workpiece in-machine clamping device with a rotating suction cup chuck to solve the above technical problems. Summary of the invention

[0006] 1. Technical issues to be resolved Based on this, the present invention provides an in-machine clamping device for thin-film workpieces with a rotating suction cup chuck to solve the technical problems in the prior art of relying on special loading and unloading robots to realize loading and unloading of thin-film workpieces, which has high equipment cost and large space occupation.

[0007] (II) Technical solution In order to solve the above technical problems, the present invention proposes an in-machine clamping device for thin-sheet workpieces with a rotating suction cup chuck, comprising: a spindle seat, an air source seat and a rotating suction cup chuck, wherein a tool holder interface is provided at the bottom of the spindle seat; the air source seat is annular as a whole, and the air source seat is detachably connected to the lower part of the spindle seat, and a seat drive air source air path for introducing a pressure air source and a seat vacuum air source air path for introducing a vacuum air source are respectively provided on the air source seat; the rotating suction cup chuck comprises: a tool holder assembly, A rotating cylinder, a hollow suction cup rotating arm and a material suction cup; the handle assembly is an integrated structure consisting of a handle body that is a columnar whole and an air path block that is a plate-shaped whole; the top two ends of the air path block are respectively provided with a handle drive air source access port and a handle vacuum air source access port, and the bottom of the handle body is respectively provided with: a handle drive air source access port connected to the handle drive air source access port, and a handle vacuum air source access port connected to the handle vacuum air source access port; the rotating cylinder can be detachably fixed to the handle body The bottom of the body, the rotating cylinder includes: a cylinder driving air source access port, a cylinder vacuum air source access port and a hollow cylinder rod; the two ends of the hollow suction cup rotating arm are respectively fixed to the hollow cylinder rod and the material suction cup; the cylinder driving air source access port is connected to the handle driving air source access port, which is used to introduce pressurized gas into the rotating cylinder to drive the hollow cylinder rod, the hollow suction cup rotating arm and the material suction cup to rotate as a whole, and the two ends of the hollow cylinder rod are respectively connected to the handle vacuum air source access port and the inside of the hollow suction cup rotating arm The connection is used to introduce negative pressure to provide vacuum suction for the material suction cup; the rotary suction cup chuck includes a spindle installation state; when the rotary suction cup chuck is in the spindle installation state: the tool handle body passes through the air source seat, and the top of the tool handle body is inserted into the tool handle interface and fixed on the spindle seat, the upper surface of the air circuit block abuts against the lower surface of the air source seat, and the handle drive air source access port is connected to the seat drive air source air circuit, and the handle vacuum air source access port is connected to the seat vacuum air source air circuit.

[0008] (III) Beneficial effects Compared with the prior art, the thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck of the present invention is based on the existing CNC machine tool, and an air source seat and a rotary suction cup chuck are added. The rotary suction cup chuck is a detachable structure, which is installed on the spindle seat. The spindle seat can be used to drive the rotary suction cup chuck to move and adsorb the thin-sheet workpiece, and the function of clamping the workpiece is realized inside the machine tool. After the rotary suction cup chuck is taken out, it does not affect the normal clamping of the tool by the spindle seat, which greatly expands the function of the original machine tool, and there is no need to set an independent manipulator to load the thin-sheet workpiece loading and unloading device outside the machine tool, which greatly reduces the equipment cost. And it will not occupy the space outside the machine tool. In addition, the rotary suction cup chuck in the thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck of the present invention has a rotation function in addition to the adsorption function, which can adsorb the thin-sheet workpiece placed vertically, rotate it, and then put it down horizontally; or adsorb the thin-sheet workpiece placed horizontally, and then put it down vertically, to meet the actual unloading and unloading needs of the thin-sheet workpiece on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0010] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 The present invention is a schematic diagram of two rotation limit states of the rotary suction cup chuck (including the air source seat); Figure 4 This is a schematic diagram of the combined state of the rotary suction cup chuck and the air source seat in the present invention; Figure 5 for Figure 4 Decomposition Figure 1 ; Figure 6 for Figure 4 Decomposition Figure 2 ; Figure 7 for Figure 4 A cross-sectional schematic diagram of Figure 8 It is a structural schematic diagram of the main shaft seat in the present invention.

[0011] Description of reference numerals: 100. Thin sheet workpiece; 01. Rotating suction cup chuck; 02. Air source seat; 03. Spindle seat; 04. Adapter plate; 05. First threaded connector; 06. Second threaded connector; 07. Third threaded connector; 08. Locking sealing nut; 09. Locking screw; 010. Seat threaded connector; 021, seat drive air source gas path; 022, seat vacuum air source gas path; 023, seat sealing cone surface; 024, seat connection hole; 031, tool handle interface; 032, shaft seat screw interface; 041, transfer drive air circuit; 042, transfer vacuum air circuit; 043, transfer upper connection hole; 044, transfer lower connection hole; 0411, transfer drive air inlet end; 0412, transfer drive air outlet end; 0421, transfer vacuum air inlet; 0422, transfer vacuum air outlet; 1. Tool handle assembly; 2. Rotating cylinder; 3. Hollow suction cup rotating arm; 4. Material suction cup; 5. Plug O-ring; 6. Support ring inner wall sealing ring; 7. Support ring outer wall sealing ring; 8. Cover sealing ring; 9. Nut O-ring; 10. Rod O-ring; 11. Plug disc O-ring; 12. Handle O-ring; 13. Connector O-ring; 14. Straight-through air connector; 011. Tool handle body; 012. Air path block; 21. Hollow cylinder rod; 22. Cylinder assembly; 23. Compression return spring; 24. Piston assembly; 31. Rotating arm casing; 32. Rotating arm main pipe; 111, insertion groove; 112, handle threaded connection hole; 113, handle drive air source connection port; 114, handle vacuum air source connection port; 121. Handle drive air source access port; 122. Handle vacuum air source access port; 123. Handle sealing ring groove; 124. Arc-shaped protrusion; 211, cylinder rod body; 212, annular pressure plate; 213, driven block; 221, front cover; 222, cylinder body; 223, rear cover; 224, spring action chamber; 241, piston cylinder; 242, piston disc; 311, pipe sealing plate; 2111, rod inner section; 2112, rod outer section; 2211, cylinder drive gas source access port; 2212, cylinder drive gas circuit; 2213, cover support ring; 2221, cylinder top connection hole; 2222, cylinder linear slide; 2223, spring seat; 2224, piston left limit step; 2225, inlet and outlet holes; 2231, cylinder vacuum air source access port; 2232, cylinder vacuum air circuit; 2233, pressure plate receiving groove; 2411, left cylinder; 2412, right cylinder; 2413, plug hole; 2414, plug slider; 2421, plug sealing ring groove; 2422, air intake groove; 21121, rod connecting hole; 21122, rod torque transmission plane; 21123, rod sealing ring groove; 22121, cylinder drive gas source outlet; 22131, piston right limit surface; 24111, spiral drive groove. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0013] The following is combined with Figure 1-8 , the thin-film workpiece in-machine clamping device with a rotating suction cup chuck of the present invention is further described.

[0014] Figure 7 The direction of the middle arrow is the direction of airflow, among which: the blue arrow on the right is the direction of pressure gas flow, and the red arrow on the left is the direction of vacuum / negative pressure gas flow.

[0015] The present invention discloses an in-machine clamping device for a thin-sheet workpiece with a rotary suction cup chuck, comprising a spindle seat 03, an air source seat 02 and a rotary suction cup chuck 01, wherein a tool handle interface 031 is arranged at the bottom of the spindle seat 03; the air source seat 02 is annular as a whole, and the air source seat 02 is detachably connected to the lower part of the spindle seat 03, and a seat drive air source air path 021 for introducing a pressure air source and a seat vacuum air source air path 022 for introducing a vacuum air source are respectively arranged on the air source seat 02; the rotary suction cup chuck 01 comprises: a tool handle assembly 1, a rotary cylinder 2, a hollow suction The tool handle assembly 1 is an integrated structure consisting of a tool handle body 011 which is a columnar body and a gas path block 012 which is a plate-shaped body; the top surfaces of the gas path block 012 are provided with a handle drive gas source access port 121 and a handle vacuum gas source access port 122 at both ends, and the bottom of the tool handle body 011 is provided with: a handle drive gas source access port 113 connected to the handle drive gas source access port 121, and a handle vacuum gas source access port 114 connected to the handle vacuum gas source access port 122; the rotary cylinder 2 can be detachably fixed to the tool handle body 01 1, the rotating cylinder 2 includes: a cylinder driving air source access port 2211, a cylinder vacuum air source access port 2231 and a hollow cylinder rod 21; the two ends of the hollow suction cup rotating arm 3 are respectively fixed to the hollow cylinder rod 21 and the material suction cup 4; the cylinder driving air source access port 2211 is connected to the handle driving air source access port 113, which is used to introduce pressurized gas into the rotating cylinder 2 to drive the hollow cylinder rod 21, the hollow suction cup rotating arm 3 and the material suction cup 4 to rotate as a whole, and the two ends of the hollow cylinder rod 21 are respectively connected to the handle vacuum air source access port 114 and the hollow suction cup The rotating arm 3 is internally connected to introduce negative pressure to provide vacuum suction for the material suction cup 4; the rotating suction cup chuck 01 includes a spindle installation state; when the rotating suction cup chuck 01 is in the spindle installation state: the tool handle body 011 passes through the air source seat 02, and the top of the tool handle body 011 is inserted into the tool handle interface 031 and fixed on the spindle seat 03, the upper surface of the air circuit block 012 abuts against the lower surface of the air source seat 02, and the handle drive air source inlet 121 is connected to the seat drive air source air circuit 021, and the handle vacuum air source inlet 122 is connected to the seat vacuum air source air circuit 022.

[0016] The structure and function of each component in this embodiment are further described below.

[0017] About the spindle seat 03: The spindle seat 03 is the structure of the spindle seat 03 of the existing CNC machine tool.

[0018] About the air source seat 02: The air source seat 02 is installed at the lower part of the spindle seat 03 and moves synchronously with the spindle seat 03. The air source seat 02 is respectively connected to a pressure air source (such as an air compressor) or a vacuum air source (such as a vacuum pump) to provide a pressure air source and a vacuum air source.

[0019] Regarding the tool handle assembly 1 in the rotary suction cup chuck 01: On the one hand, the tool handle assembly 1 needs to meet the function of the existing CNC machine tool tool handle, that is, it can be docked and installed with the tool handle interface 031. In this embodiment, this function is realized by the tool handle body 011, and the top of the tool handle body 011 has an interface connected to the tool handle interface 031, and the top of the tool handle body 011 can be inserted and fixed at the tool handle interface 031 of the spindle seat 03. In specific implementation, the structure of the top of the tool handle body 011 matches the structure of the spindle seat 03. On the other hand, the tool handle assembly 1 also needs to introduce pressurized gas and negative pressure gas source into the rotating cylinder 2 when the rotary suction cup chuck 01 device is in the spindle installation state. To achieve this function, in this embodiment, when the tool handle body 011 is fixed to the tool handle interface 031 of the spindle seat 03, the handle drive gas source access port 121 is just connected to the seat drive gas source gas path 021, and the handle vacuum gas source access port 122 is just connected to the seat vacuum gas source gas path 022. Therefore, the structure of the tool handle assembly 1 of this embodiment can realize the rapid docking of the vacuum air source interface between the air source seat 02 and the rotary suction cup chuck 01; at the same time, it can also realize the rapid docking of the pressure air source interface between the air source seat 02 and the rotary suction cup chuck 01.

[0020] Regarding the rotating cylinder 2 in the rotating suction cup chuck 01: the rotating cylinder 2 is used to realize that under the drive of the pressurized gas, the hollow cylinder rod 21 can rotate to a certain angle. After the pressurized gas is removed, the hollow cylinder rod 21 can rotate in the opposite direction and reset. The rotating cylinder 2 can be the existing rotating cylinder 2 structure. The difference is that the hollow cylinder rod 21 in the present embodiment is a hollow structure, and a vacuum air duct needs to be formed to lead the upper vacuum air source into the hollow suction cup arm 3.

[0021] Regarding the hollow suction cup rotating arm 3 and the material suction cup 4 : the hollow suction cup rotating arm 3 is fixedly connected and communicated with the hollow cylinder rod 21 , and the hollow suction cup rotating arm 3 is also communicated with the material suction cup 4 .

[0022] The use process of the thin-sheet workpiece in-machine clamping device with a rotating suction cup clamping head of the present invention is as follows: The object of the present invention is a thin-sheet workpiece 100 such as mobile phone glass, flat glass, etc.

[0023] In the initial state, the thin workpiece 100 is stored vertically in the material basket. When the CNC machine tool needs to clamp the thin workpiece 100 for loading, the rotary suction cup chuck 01 is clamped on the spindle seat 03, and the hollow cylinder rod 21 is in the vertically set initial state. The rotary suction cup chuck 01 is in the spindle installation state. The spindle seat 03 drives the rotary suction cup chuck 01 to move to the vicinity of the thin workpiece 100, and the pressure air source enters the rotary cylinder 2 through: the seat drive air source air path 021, the handle drive air source inlet 121, the handle drive air source inlet 113 and the cylinder drive air source inlet 2211, respectively, to drive the hollow cylinder rod 21, the hollow suction cup arm 3 and the material. The three suction cups 4 rotate as a whole. After the material suction cup 4 rotates, the adsorption surface of the material suction cup 4 faces the thin workpiece 100 (at this time, the adsorption surface is parallel or substantially parallel to the thin workpiece 100). The vacuum air source is activated, so that the vacuum air circuit forms a negative pressure. The material suction cup 4 sucks a thin workpiece 100. After the spindle seat 03 drives the rotating suction cup chuck 01 and the thin workpiece 100 to move to the preset position inside the CNC machine tool, the pressure air source stops working. After the pressure gas is removed, the hollow cylinder rod 21 can rotate in the opposite direction and reset. The hollow cylinder rod 21 is arranged vertically, and the thin workpiece 100 is located below the material suction cup 4 and the thin workpiece 100 is arranged horizontally. When the spindle seat 03 moves the material suction cup 4 and the thin workpiece 100 to the preset position of the material placement table (not shown) close to the machine tool, the vacuum adsorption air circuit is interrupted, and the thin workpiece 100 is placed on the material placement table; the material loading is realized. Referring to the reverse process of the above process, the material unloading is realized.

[0024] The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck of the present invention is based on the existing CNC machine tool, and an air source seat 02 and a rotary suction cup chuck 01 are added. The rotary suction cup chuck 01 is a detachable structure, which is installed on the spindle seat 03. The spindle seat 03 can be used to drive the rotary suction cup chuck 01 to move and adsorb the thin-sheet workpiece 100, so as to realize the function of clamping the workpiece inside the machine tool. After the rotary suction cup chuck 01 is taken out, it does not affect the normal clamping of the tool by the spindle seat 03, which greatly expands the function of the original machine tool, and there is no need to set an independent loading and unloading manipulator outside the machine tool, which greatly reduces the equipment cost. And it does not occupy the space outside the machine tool. In addition, the rotary suction cup chuck 01 in the thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck of the present invention has not only an adsorption function but also a rotation function. It can adsorb a vertically placed thin-sheet workpiece 100, rotate it, and then put it down horizontally; or adsorb a horizontally placed thin-sheet workpiece 100 and then put it down vertically, thereby meeting the actual unloading needs of the thin-sheet workpiece 100 on site.

[0025] According to a specific embodiment of the present invention, the thin-film workpiece in-machine clamping equipment with a rotary suction cup chuck also includes a tool magazine tool sleeve (not shown in the figure) and an automatic tool changing device (not shown in the figure), and the rotary suction cup chuck 01 also includes a tool magazine accommodating state; when the rotary suction cup chuck 01 is in the tool magazine accommodating state, the top of the tool handle body 011 is installed on the tool magazine tool sleeve, and the automatic tool changing device is used to realize the switching of the thin-film workpiece in-machine clamping equipment with a rotary suction cup chuck between the spindle installing state and the tool magazine accommodating state; the outer side of the tool handle body 011 is also provided with an insertion groove 111 for clamping the automatic tool changing device, and the insertion groove 111 is located below the air circuit block 012.

[0026] In this embodiment, the rotary suction cup chuck 01 in the present invention is the same as the tool in the existing CNC machine tool. Under the action of the automatic tool changing device, the position of the rotary suction cup chuck 01 can be automatically changed. The setting of the insertion groove 111 is convenient for the automatic tool changing device to grasp, and the insertion groove 111 is located below the air circuit block 012, which does not affect the connection between the air circuit block 012 and the air source seat 02.

[0027] According to a specific embodiment of the present invention, the rotary cylinder 2 also includes: a cylinder assembly 22, a compression return spring 23 and a piston assembly 24; a cylinder cavity is provided in the cylinder assembly 22, and the two ends of the hollow cylinder rod 21 are respectively an inner rod section 2111 and an outer rod section 2112, the inner rod section 2111 is located in the cylinder cavity, the outer rod section 2112 extends out of the cylinder assembly 22 and is connected to the hollow suction cup rotating arm 3, and the hollow cylinder rod 21 is rotatably connected to the cylinder assembly 22; the piston assembly 24 is arranged in the cylinder cavity, and the piston assembly 24 divides the cylinder cavity into a pressure gas action chamber and a spring action chamber 224, and the piston assembly 24 is slidably connected to the cylinder assembly 22; a plug hole 2413 is provided on the piston assembly 24 that runs through it axially, and a recessed spiral drive groove 24 is provided on the outer wall of the piston assembly 24 111, the hollow cylinder rod 21 passes through the plug hole 2413, and the outer side of the hollow cylinder rod 21 is also provided with a driven block 213 which is protruding and extends into the spiral driving groove 24111, and the driven block 213 is slidingly connected to the spiral driving groove 24111; the cylinder driving air source access port 2211 and the cylinder vacuum air source access port 2231 are respectively arranged on both sides of the top of the cylinder assembly 22; the cylinder assembly 22 also includes a cylinder driving air circuit 2212 and a cylinder vacuum air circuit 2232 formed therein; the two ends of the cylinder vacuum air circuit 2232 are respectively connected with the cylinder vacuum air source access port 2231 and the rod inner section 2111, and the two ends of the cylinder driving air circuit 2212 are respectively connected with the cylinder driving air source access port 2211 and the pressure gas action chamber; the compression return spring 23 is located in the spring action chamber 224.

[0028] In this embodiment, a specific structure of a rotary cylinder 2 is provided.

[0029] The cylinder assembly 22 is used to form a cylinder cavity to accommodate the compression return spring 23, the piston assembly 24 and part of the hollow cylinder rod 21. The cylinder assembly 22 is also used to form a pressure gas path for passing the pressure gas into the pressure gas action chamber, and the cylinder assembly 22 is also used to form a vacuum gas path for passing the vacuum gas into the hollow cylinder rod 21. The piston assembly 24 is slidably connected to the cylinder assembly 22, and the piston assembly 24 moves in a straight line under the action of the pressure gas source.

[0030] The hollow cylinder rod 21 has multiple functions. On the one hand, the hollow cylinder rod 21 passes through the piston assembly 24, and the driven block 213 is slidably connected to the spiral drive groove 24111. When the piston assembly 24 moves linearly, the spiral drive groove 24111 moves linearly synchronously, which can force the driven block 213 to rotate together with the hollow cylinder rod 21 as a whole, thereby converting linear power into rotational power, providing rotational power for the hollow suction cup arm 3, and finally realizing the rotation of the material suction cup 4. On the other hand, the internal hollow structure of the hollow cylinder rod 21 can also be used as a vacuum air path, and the vacuum air path is extended to the hollow suction cup arm 3, and finally provides power for the adsorption of the material suction cup 4.

[0031] The piston assembly 24 is used to reciprocate and compress the compression return spring 23 under the action of the pressurized gas, thereby driving the hollow cylinder rod 21 to rotate. After the pressurized gas is removed, the hollow cylinder rod 21 can rotate in the opposite direction and return to its original position under the elastic force of the compression return spring 23.

[0032] As can be seen from the above, the rotary cylinder 2 in this embodiment can not only convert linear power into rotary power, but also connect the vacuum air source to the material suction cup 4. The vacuum air circuit is a built-in structure with a clever design, and the volume of the cylinder is not significantly increased, and the overall weight is light.

[0033] According to a specific embodiment of the present invention, the thin-film workpiece in-machine clamping device with a rotating suction cup chuck also includes an adapter plate 04 that is detachably fixed to the top of the cylinder assembly 22; a transfer drive air circuit 041 and a transfer vacuum air circuit 042 are provided in the adapter plate 04, and the two ends of the transfer drive air circuit 041 are respectively a transfer drive air inlet end 0411 and a transfer drive air outlet end 0412; the two ends of the transfer vacuum air circuit 042 are respectively a transfer vacuum air inlet end 0421 and a transfer vacuum air outlet end 0422; the transfer drive air inlet end 0411 is located at the top of the adapter plate 04 and is connected to the handle drive air source connection port 113, and the transfer drive The air outlet end 0412 is located at the bottom of the adapter plate 04 and is connected to the cylinder drive air source access port 2211; the adapter vacuum air inlet end 0421 is located at the top of the adapter plate 04 and is connected to the handle vacuum air source access port 114, and the adapter vacuum air outlet end 0422 is located at the bottom of the adapter plate 04 and is connected to the cylinder vacuum air source access port 2231; the bottom of the handle body 011 is also provided with a handle threaded connection hole 112, and the handle threaded connection hole 112 is located between the handle drive air source access port 113 and the handle vacuum air source access port 114; the adapter plate 04 is rectangular, and the center of the adapter plate 04 is provided with an adapter upper connection hole 043 running through it, and the adapter The four corners of the plate 04 are respectively provided with a lower adapter connection hole 044 passing through it; the top surface of the cylinder assembly 22 is a rectangular plane matching the bottom surface of the adapter plate 04, and the four corners of the top surface of the cylinder assembly 22 are respectively provided with a cylinder top connection hole 2221; the thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck also includes a first threaded connector 05, which passes through the upper adapter connection hole 043 and extends into the handle threaded connection hole 112 to achieve fixed connection between the adapter plate 04 and the tool handle body 011; the thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck also includes a second threaded connector 06, The second threaded connector 06 penetrates the adapter lower connection hole 044 and extends into the cylinder top connection hole 2221, so as to realize the fixed connection between the adapter plate 04 and the cylinder assembly 22; the distance between the handle drive air source connection port 113 and the handle vacuum air source connection port 114 is P1, the distance between the adapter drive air inlet end 0411 and the adapter vacuum air inlet end 0421 is P2, P1=P2; the distance between the adapter drive air outlet end 0412 and the adapter vacuum air outlet end 0422 is P3, the distance between the cylinder drive air source connection port 2211 and the cylinder vacuum air source connection port 2231 is P4, P3=P4; P4>P1.

[0034] In this embodiment, the added adapter plate 04 can reduce the difficulty of connection between the tool handle assembly 1 and the rotary cylinder 2. The "connection" between the tool handle assembly 1 and the rotary cylinder 2 includes "physical structure connection" and "air path connection".

[0035] 1. About physical structure connection.

[0036] If the adapter plate 04 is not provided, the structure of the tool handle body 011 or the cylinder assembly 22 needs to be improved and a connection structure needs to be added. In this embodiment, the tool handle body 011 needs to simulate the existing tool handle structure in order to be compatible with the automatic tool changing device, and it is not suitable to add a connection structure such as a flange below it; and the cylinder assembly 22 is a relatively closed cylinder structure. Under the premise that the connection surface below the tool handle body 011 is small, if a connection hole or other structure is formed at the corresponding position above the cylinder assembly 22, it is necessary to add an additional physical structure to form the connection hole at the top center of the cylinder assembly 22, and it is also necessary to reserve space for disassembly and assembly of the threaded connector, which will inevitably greatly increase the volume of the cylinder assembly 22.

[0037] In this embodiment, after the adapter plate 04 is provided, the first threaded connector 05 is used to connect the adapter plate 04 and the handle body 011, and the second threaded connector 06 is used to connect the adapter plate 04 and the cylinder assembly 22, and the first threaded connector 05 is located at the center of the adapter plate 04, just aligned with the upper handle body 011, and the second threaded connector 06 is located at the four corners of the top surface of the cylinder assembly 22, which will not affect the sealing of the cylinder cavity. Therefore, the adapter plate 04 is provided to effectively solve the connection problem between the handle assembly 1 and the rotary cylinder 2.

[0038] (ii) Regarding gas line connection.

[0039] In this embodiment, the outer diameter of the handle body 011 is smaller than the outer diameter of the rotating cylinder 2, and the vacuum air source and the pressure air source need to enter from both sides of the barrel cavity of the rotating cylinder 2. That is, when the P1 value is less than P3, how to achieve the connection of the air path between the handle body 011 and the rotating cylinder 2 is a technical problem that needs to be solved.

[0040] To solve the above technical problems, if the adapter plate 04 is not provided, an external air pipe needs to be added, which reduces the stability and integrity of the present invention. Alternatively, the air paths for pressure gas and vacuum gas can be formed in the upper solid part of the cylinder assembly 22. To ensure the strength, the top of the cylinder assembly 22 needs to be additionally partially thickened, which increases the difficulty of forming. Moreover, if, on this basis, the structure for realizing the connection of the solid structure in the above-mentioned part (I) is also provided, the upper structure of the cylinder assembly 22 will inevitably be complicated and irregular.

[0041] In this embodiment, the gas path between the handle assembly 1 and the cylinder assembly 22 is connected by the adapter plate 04. The gas path connection problem between the handle body 011 and the rotating cylinder 2 is effectively solved. No external air pipe is required, the structure is compact and stable, and the integrity is good. In addition, in this embodiment, the upper part of the cylinder assembly 22 is a simple planar structure, the adapter plate 04 fits the top surface of the cylinder assembly 22, and the upper part of the cylinder assembly 22 is a regular rectangle, with a compact structure and low molding difficulty. When in use, if the outside is adhered to by water slag, it is more convenient to clean.

[0042] According to a specific embodiment of the present invention, the cylinder assembly 22 includes: a cylinder body 222, a front cover 221 and a rear cover 223. The cylinder body 222 is generally cylindrical with openings at both ends; the front cover 221 and the rear cover 223 are respectively fixed to the two open ends of the cylinder body 222 by a third threaded connector 07; a cylinder vacuum air source access port 2231 is provided at the top of the rear cover 223, and a cylinder vacuum air path 2232 is formed in the rear cover 223; a cylinder drive air source access port 2211 is provided at the top of the front cover 221, and a cylinder drive air path 2212 is formed in the rear cover 223; and the cylinder top connection hole 2221 is located at the four corners of the top surface of the cylinder body 222.

[0043] In this embodiment, the cylinder assembly 22 is a split structure, which is convenient for split processing, reduces the processing difficulty, and is also convenient for installing the internal components of the cylinder assembly 22. The front cover 221 and the rear cover 223 are respectively located at the two ends of the cylinder body 222, which is convenient for guiding the vacuum air source and the pressure air source to the two sides of the cylinder body 222 respectively.

[0044] According to a specific embodiment of the present invention, the piston assembly 24 includes a piston cylinder 241 and a piston disc 242. The piston cylinder 241 is cylindrical as a whole, and the plug hole 2413 runs through the piston cylinder 241. The piston disc 242 divides the cylinder cavity into a pressure gas action chamber and a spring action chamber 224. The piston disc 242 is a disc-shaped disk fixedly surrounding the outer side of the piston cylinder 241, and the piston disc 242 divides the piston cylinder 241 into a left cylinder body 2411 and a right cylinder body 2412. The spiral driving groove 24111 is arranged on the outer wall of the cylinder body 2411. The end of the outer wall of the left cylinder body 2411 away from the piston disc 242 is also provided with a protruding plug slider 2414. The inner wall of the cylinder body 222 is provided with a recessed cylinder linear slide groove 2222. Each plug slider 2414 extends into the cylinder linear slide groove 2222 to realize the sliding of the piston assembly 24 and the cylinder assembly 22. The piston disc 242 is dynamically connected; a recessed plug sealing ring groove 2421 is provided on the outer side of the piston disc 242, and a plug O-type sealing ring 5 is provided in the plug sealing ring groove 2421; the front cover 221 also includes a cover support ring 2213 extending into the cylinder cavity, and the right cylinder 2412 extends into the cover support ring 2213, and the two are slidably connected; a support ring inner wall sealing ring 6 is provided between the cover support ring 2213 and the outer side wall of the right cylinder 2412; a support ring outer wall sealing ring 7 is provided between the cover support ring 2213 and the inner wall of the cylinder body 222; a recessed air inlet groove 2422 is provided on the end face of the piston disc 242 away from the left cylinder body 2411; the cylinder drive air circuit 2212 includes a cylinder drive air source outlet 22121, and the cylinder drive air source outlet 22121 is located at one end of the cover support ring 2213 close to the piston disc 242, and the cylinder drive air source outlet 22121 is connected to the air inlet groove 2422.

[0045] In this embodiment, the structures of the piston assembly 24 and the cylinder assembly 22 are further designed.

[0046] First, the piston disc 242 is designed to be disc-shaped, and the outer wall of the piston disc 242 is tightly fitted with the inner wall of the barrel cavity through the plug O-ring 5 to separate the barrel cavity into a pressure gas action chamber and a spring action chamber 224. The piston barrel 241 is used to form a plug hole 2413, and the hollow cylinder rod 21 passes through the plug hole 2413 and is rotatably connected to the piston barrel 241. The spiral driving groove 24111 on the outer wall of the left barrel 2411 cooperates with the driven block 213, and the plug slider 2414 extends into the cylinder linear slide groove 2222 to realize the sliding connection between the piston assembly 24 and the cylinder assembly 22. The above structure provides a basis for converting the linear moving power of the piston assembly 24 into the rotational power of the hollow cylinder rod 21.

[0047] Secondly, the rotary cylinder 2 of this embodiment includes three supporting and guiding structures used in combination. The first is: the hollow cylinder rod 21 passes through the center of the piston assembly 24, and the hollow cylinder rod 21 provides support and sliding guidance for the piston assembly 24. The second is: one side of the front cover 221 extends into the cylinder cavity to form a cover support ring 2213, which can accommodate and support the right cylinder 2412, and the two are slidably connected, providing sliding support for the right side of the piston assembly 24; the third is: a protruding plug slider 2414 is provided at the leftmost end of the piston assembly 24 (the end of the outer wall of the left cylinder 2411 away from the piston disc 242), and the plug slider 2414 extends into the cylinder linear slide groove 2222 to form a sliding connection, that is, this structure provides a sliding guide on the left side of the piston assembly 24, and this structure can also limit the rotation of the piston assembly 24. The three structures provide radial support, limit and guidance for the piston assembly 24 from the center and left and right ends of the piston assembly 24, ensuring that the piston assembly 24 slides accurately and smoothly along a straight line.

[0048] Again, it should be noted that in addition to the function of supporting the piston assembly 24, the cover support ring 2213 that extends into the cylinder cavity also has a partial cylinder drive air path 2212 formed inside it, and a cylinder drive air source outlet 22121 is provided thereon. This structure can smoothly introduce pressurized gas into the cylinder cavity.

[0049] In this embodiment, all sealing grooves are equipped with sealing rings, which are used for air path sealing. On the one hand, they can prevent air leakage in the cylinder cavity; on the other hand, they can also prevent external cutting fluid, dust, and water vapor from entering the interior of the rotating suction cup chuck 01, which is beneficial to improving the overall protection level of the in-machine clamping equipment of the present invention.

[0050] According to a specific embodiment of the present invention, the hollow cylinder rod 21 includes a cylinder rod body 211 and an annular pressure plate 212. The cylinder rod body 211 is a round tube as a whole. The two ends of the cylinder rod body 211 are respectively an inner rod section 2111 and an outer rod section 2112. The annular pressure plate 212 fixing ring is arranged on the outer side wall of the inner rod section 2111. The cylinder rod body 211 passes through the front cover 221, and the cylinder rod body 211 is rotatably connected with the front cover 221. A cover sealing ring 8 is arranged between the cylinder rod body 211 and the front cover 221. The rear cover 223 is close to the inner rod section 2111. A concave pressure plate receiving groove 2233 is provided on one side surface of the cylinder body 222, and the annular pressure plate 212 is completely received in the pressure plate receiving groove 2233. The joint surface between the cylinder body 222 and the rear cover 223 is a plane, and the cylinder body 222 covers the notch edge of the pressure plate receiving groove 2233 to limit the annular pressure plate 212 from escaping from the pressure plate receiving groove 2233; the outer side wall of the rod outer section 2112 is respectively provided with: a rod connecting hole 21121, a rod torque transmission plane 21122 and a rod sealing ring groove 21123; the hollow suction cup rotating arm 3 includes a rotating arm sleeve The tube 31 and the arm main tube 32 are vertically fixed to one side of the arm sleeve 31, and the end of the arm main tube 32 away from the arm sleeve 31 is connected to the material suction cup 4; the inner wall of the arm sleeve 31 is provided with a tube torque transmission plane used in conjunction with the rod torque transmission plane 21122, the arm sleeve 31 is a tubular shape that is coaxial with the cylinder rod body 211, and one end of the arm sleeve 31 is provided with a tube sealing plate 311; the arm main tube 32 is a square tube shape as a whole, the arm sleeve 31 is sleeved on the rod outer section 2112, and the tube sealing plate 311 is connected to the rod outer section 211 2, and the rod torque transmission plane 21122 is in contact with the tube torque transmission plane, the thin-film workpiece in-machine clamping device with a rotary suction cup chuck also includes a locking sealing nut 08, the locking sealing nut 08 passes through the tube sealing plate 311 and is threadedly connected to the rod outer section 2112, a nut O-type sealing ring 9 is provided between the locking sealing nut 08 and the tube sealing plate 311, a rod O-type sealing ring 10 is provided in the rod sealing ring groove 21123, and the rod connecting hole 21121 is located between the nut O-type sealing ring 9 and the rod O-type sealing ring 10.

[0051] In this embodiment, the hollow cylinder rod 21 is specifically involved in the matching structure with the front cover 221, the rear cover 223, and the hollow suction cup rotating arm 3. The structures of the hollow cylinder rod 21, the rear cover 223, and the hollow suction cup rotating arm 3 are specifically designed, and the working principle and beneficial effects of each component and the structure between the components are specifically described below.

[0052] Regarding the implementation structure of the rotation of the hollow cylinder rod 21 and the cylinder assembly 22. In the present embodiment, the left end of the cylinder rod body 211 cooperates with the pressure plate receiving groove 2233 by utilizing the annular pressure plate 212, and under the limiting action of the cylinder body 222, a structure is formed in which the left end of the cylinder rod body 211 is rotationally connected to the cylinder assembly 22. This structure makes full use of the advantage that the cylinder assembly 22 is a split structure, and utilizes the side limiting of the cylinder body 222. After assembly, a rotation connection structure can be directly formed without the need for additional components for forming a rotation connection. The right end of the cylinder rod body 211 is rotationally connected to the front cover 221. In conjunction with the structure in which the left end of the cylinder rod body 211 is rotationally connected to the cylinder assembly 22, a stable structure in which the hollow cylinder rod 21 is rotationally connected to the cylinder assembly 22 can be formed.

[0053] Regarding the implementation structure of the connection between the hollow cylinder rod 21 and the hollow suction cup arm 3. In the present embodiment, the connection structure between the hollow cylinder rod 21 and the hollow suction cup arm 3 includes the internal gas path connection of the component and the fixed connection of the component entity. The rod connecting hole 21121 is used to connect the cylinder rod body 211 and the arm main pipe 32. The rod connecting hole 21121 is arranged between the nut O-ring 9 and the rod O-ring 10 to ensure the sealing of the gas path connection between the cylinder rod body 211 and the arm main pipe 32. The rod torque transmission plane 21122 cooperates with the tube torque transmission plane to transmit the torque of the cylinder rod body 211 to the hollow suction cup arm 3. The arm main pipe 32 is threadedly connected to the material suction cup 4, and the two are internally connected to form an air path extending to the material suction cup 4. The swivel arm sleeve 31 is used to be fixedly connected to the cylinder rod body 211, and the tube sealing plate 311 is used to limit the position of the swivel arm sleeve 31 during installation, which is convenient for installation. The tube sealing plate 311 also plays a positioning role to ensure that the rod connecting hole 21121 can be aligned and connected with the swivel arm main pipe 32. The tube sealing plate 311 also plays a role in improving the stability of the connection. Specifically, after the locking sealing nut 08 is installed, the locking sealing nut 08 presses the tube sealing plate 311 and is connected to the cylinder rod body 211, thereby further enhancing the connection stability between the hollow suction cup swivel arm 3 and the hollow cylinder rod 21. The swing arm sleeve 31 is set to be coaxial with the cylinder rod body 211, and the nut O-ring 9 is inserted before installing the locking sealing nut 08. After installation, in addition to the aforementioned connecting function, the locking sealing nut 08 can also seal the right end outlet of the cylinder rod body 211, thereby blocking the airway process hole, eliminating the screw plug for sealing the process hole here and simplifying the structure.

[0054] In addition, the arm main pipe 32 is in a square tube shape as a whole, which can increase the connection area between the arm main pipe 32 and the arm sleeve 31 and ensure the connection strength between the arm main pipe 32 and the arm sleeve 31.

[0055] According to a specific embodiment of the present invention, there are two rod torque transmission planes 21122 arranged opposite to each other, and the rod torque transmission plane 21122 is located on the side of the rod O-ring 10 away from the nut O-ring 9, and the thin-film workpiece in-machine clamping device with a rotary suction cup chuck also includes two locking screws 09, and the two locking screws 09 respectively penetrate the swing arm sleeve 31 and respectively abut the two rod torque transmission planes 21122; the cylinder rod body 211 and the annular pressure plate 212 are an integrally formed structure; the inner diameter D1 of the annular pressure plate 212 is larger than the inner diameter D2 of the cylinder rod body 211 (such as Figure 7 ), the inner wall of the pressure plate receiving groove 2233 extends into the inner wall of the annular pressure plate 212, and the inner wall of the pressure plate receiving groove 2233 is in contact with the inner wall of the annular pressure plate 212, and a plug plate O-ring 11 is provided between the inner wall of the pressure plate receiving groove 2233 and the inner wall of the annular pressure plate 212.

[0056] In this embodiment, the two rod torque transmission planes 21122 can transmit a larger torque. The two rod torque transmission planes 21122 are arranged relative to each other and locked by the locking screws 09. They can be locked from relative directions to ensure the coaxiality of the swivel arm sleeve 31 and the cylinder rod body 211, and can further enhance the connection stability between the hollow suction cup swivel arm 3 and the hollow cylinder rod 21.

[0057] The cylinder rod body 211 and the annular pressure plate 212 are integrally formed, which is conducive to the two being firmly and tightly connected, and the volume is small and the structure is compact. The plug plate O-ring 11 is used to ensure the airtightness of the joint between the hollow cylinder rod 21 and the rear cover 223. The inner diameter of the annular pressure plate 212 is larger than the inner diameter of the piston cylinder 241, so that the inner wall of the pressure plate receiving groove 2233 just extends into the inner wall of the annular pressure plate 212, and the inner wall of the pressure plate receiving groove 2233 can position the hollow cylinder rod 21. When the hollow cylinder rod 21 rotates, its rotation center is always concentric with the pressure plate receiving groove 2233, ensuring the accuracy of the rotation of the hollow cylinder rod 21.

[0058] According to a specific embodiment of the present invention, a spring seat 2223 which is an overall cylindrical ring is further provided on one side of the cylinder body 222 near the rear cover 223, and the portion of the compression return spring 23 near the rear cover 223 is sleeved on the spring seat 2223; the inner wall of the spring seat 2223 is slidably connected to the piston cylinder 241, and the cylinder linear slide groove 2222 is provided on the inner wall of the spring seat 2223, and the cylinder linear slide groove 2222 is formed by the inner wall of the spring seat 2223 being recessed; the cylinder linear slide groove 2222 There are two of them, and the two cylinder linear slide grooves 2222 are arranged opposite to each other, there are two plug sliders 2414, and each cylinder linear slide groove 2222 is provided with a plug slider 2414; the side wall of the cylinder body 222 is provided with a piston left limiting step 2224 for limiting the piston disc 242, the end face of the cover support ring 2213 close to the rear cover 223 is the piston right limiting face 22131, and the end face of the piston disc 242 away from the left cylinder body 2411 is provided with a recessed air intake groove 2422.

[0059] In this embodiment, the structure of the cylinder body 222 is designed more specifically. The spring seat 2223 integrates multiple functions. First, the inner wall of the spring seat 2223 is used to form a cylinder linear slide groove 2222, which realizes the function of the piston assembly 24 and the cylinder assembly 22 being slidably connected, and limits the rotational freedom of the piston assembly 24. Secondly, the outer wall of the spring seat 2223 can also provide an installation and positioning basis for the compression return spring 23, ensuring the stability of the position of the compression return spring 23. Thirdly, the inner wall of the spring seat 2223 is slidably connected to the piston cylinder 241, which can further ensure the sliding stability and sliding accuracy of the piston cylinder 241. The two relatively arranged cylinder linear slide grooves 2222 are used in conjunction with the two plug sliders 2414 to improve the uniformity of the force, which is conducive to ensuring the smoothness of the sliding of the plug slider 2414. The piston left limit step 2224 and the piston right limit surface 22131 are respectively the left and right movement limits of the piston disc 242, which are used to accurately control the stroke of the piston disc 242.

[0060] As can be seen from the above, the cylinder body 222 of this embodiment is cleverly and reasonably designed, and simultaneously realizes: the anti-rotation function of the piston assembly 24, the sliding guide function of the piston assembly 24, and the stable installation function of the compression return spring 23.

[0061] On this basis, a recessed air inlet groove 2422 is provided and the cylinder drive air source outlet 22121 is connected to the air inlet groove 2422, which can ensure that the pressurized gas smoothly enters the pressurized gas action chamber and pushes the piston disc 242 to move.

[0062] According to a specific embodiment of the present invention, there are two spiral drive grooves 24111, and the two spiral drive grooves 24111 are evenly arranged around the central axis of the piston cylinder 241, and the spiral drive grooves 24111 and the plug slider 2414 are alternately arranged; there are two driven blocks 213, and each spiral drive groove 24111 is equipped with a driven block 213.

[0063] In this embodiment, the number and position of the spiral driving groove 24111 and the plug slider 2414 are specifically limited. The plug slider 2414 is located at the end of the outer wall of the left cylinder 2411 away from the piston disk 242, and the notch of the spiral driving groove 24111 is also located here. The length of the plug slider 2414 is shorter than that of the spiral driving groove 24111. Therefore, the use of this structure can ensure that the spiral driving groove 24111 will not interfere with the plug slider 2414 after extending along its spiral line.

[0064] The spiral drive groove 24111 will reduce the strength of the piston cylinder 241, while the plug slider 2414 will increase the strength of the piston cylinder 241. In this embodiment, the two spiral drive grooves 24111 and the two plug sliders 2414 are evenly distributed along the central axis of the piston cylinder 241, which can ensure the uniformity of the intervals between the spiral drive grooves 24111 and ensure the overall strength of the piston cylinder 241.

[0065] In this embodiment, the driving structure (spiral driving groove 24111) and the guiding structure (plug slider 2414) are arranged alternately, which can ensure smooth and balanced force and further improve the smoothness of the movement.

[0066] As can be seen from the above, in the rotary cylinder 2 of the present invention, the various components cooperate with each other in structure and function, such as: the rear cover 223 and the cylinder body 222 cooperate with each other in structure and function, and the front cover 221 and the cylinder body 222 cooperate with each other in structure and function, which ultimately makes the rotary cylinder 2 have the advantages of small size, sophisticated design, smooth movement, etc.

[0067] According to a specific embodiment of the present invention, the handle vacuum air source access port 122 is provided with a recessed handle sealing ring groove 123, a handle O-shaped sealing ring 12 is provided in the handle sealing ring groove 123, and a handle drive air source access port 121 is provided with a straight-through air-passing joint 14, the upper part of the straight-through air-passing joint 14 is a raised cone, the lower part of the straight-through air-passing joint 14 is fixedly connected to the inner wall of the handle drive air source access port 121, and the upper part of the straight-through air-passing joint 14 is provided with a joint ring. An O-ring 13 and a seat sealing cone 023 matching the lower end of the straight air connection joint 14 are provided at the lower opening of the seat driving air source circuit 021; when the rotary suction cup chuck 01 is in the spindle installation state: the handle O-ring 12 abuts against the lower surface of the air circuit block 012; the upper part of the straight air connection joint 14 extends into the seat driving air source circuit 021, and the joint O-ring 13 abuts against the outer side wall of the straight air connection joint 14 and the seat sealing cone 023 respectively.

[0068] In this embodiment, the handle O-ring 12 is used to ensure the sealing of the handle vacuum air source inlet 122 between the air source seat 02 and the air circuit block 012 when the air source seat 02 and the rotary suction cup chuck 01 are docked. The straight air connection 14 is used in conjunction with the seat sealing cone 023, which has two functions. First, the upper part of the straight air connection 14 is convexly arranged, and its upper part is conical. When the air source seat 02 and the rotary suction cup chuck 01 are docked, the upper part of the straight air connection 14 is first inserted into the seat sealing cone 023, which plays a certain guiding role. Second, the upper part of the straight air connection 14 is provided with a joint O-ring 13. After the upper part of the straight air connection 14 is inserted into the seat sealing cone 023, the joint O-ring 13 can ensure the sealing of the driving air circuit there.

[0069] As can be seen from the above, through the structure of this embodiment, when the air source seat 02 and the rotary suction cup chuck 01 are docked, quick docking can be achieved and effective sealing of the air path between the air source seat 02 and the air path block 012 after docking is ensured, and with this structure, after the rotary suction cup chuck 01 is separated from the air source seat 02 and installed on the tool magazine guide sleeve, the handle O-ring 12 is still located in the handle sealing ring groove 123, and the straight air connection 14 and the connection O-ring 13 are still connected to the air path block 012, which does not affect the next docking, and is further conducive to the smooth implementation of the present invention.

[0070] According to a specific embodiment of the present invention, the gas circuit block 012 is rectangular in shape as a whole, and the two short sides of the gas circuit block 012 have arc-shaped protrusions 124 flush with the gas source seat 02; the bottom of the spindle seat 03 also includes a plurality of shaft seat screw interfaces 032 (see Figure 8), a seat connecting hole 024 is provided at the position of the air source seat 02 corresponding to the shaft seat screw interface 032, and the seat connecting hole 024 is staggered above the air circuit block 012; the thin-film workpiece in-machine clamping device with a rotating suction cup chuck also includes a seat threaded connector 010, which passes through the seat connecting hole 024 and extends into the shaft seat screw interface 032, thereby realizing the fixed connection between the air source seat 02 and the spindle seat 03.

[0071] In this embodiment, the two short sides of the gas circuit block 012 in the length direction match the shape of the gas source seat 02 through the structure of the arc-shaped protrusion 124, which is conducive to extending the length of the gas circuit in the gas circuit block 012, so that the gas circuit in the gas circuit block 012 and the gas source seat 02 below have the same length, which is conducive to the transmission of the gas circuit after the gas circuit block 012 and the gas source seat 02 are connected up and down. On the other hand, with this structure, the two ends of the gas circuit block 012 are flush with the outer side of the gas source seat 02, avoiding the exposed step structure at this place, which is conducive to reducing the accumulation of external dust and residue.

[0072] In this embodiment, the seat connection hole 024 is staggered with respect to the upper part of the gas circuit block 012 , that is, there is no obstruction below the seat connection hole 024 , which is conducive to the installation of the seat threaded connector 010 from bottom to top.

[0073] According to a specific embodiment of the present invention, the side wall of the cylinder body 222 is further provided with an air inlet and outlet hole 2225 connected to the spring action chamber 224. The air inlet and outlet hole 2225 is used to adaptively discharge or inhale gas when the volume of the spring action chamber 224 changes.

[0074] The rotary suction cup chuck 01 in the present invention has the advantages of reasonable design, small size and light weight as a whole, which provides favorable conditions for loading on the tool magazine and the spindle seat. The structure of the tool handle assembly 1 in the present invention can be quickly docked with the spindle seat 03, and the structure of the tool handle assembly 1 can also be quickly docked with the air source seat 02, and the air tightness of the docking point can be ensured, and the pressure air source and vacuum air source from the air source seat 02 are guided to the rotary cylinder 2 through the adapter plate 04, which is convenient to use. The present invention is provided with sealing rings at the air path connection of the components, which can ensure the protection level of the present invention, so that the present invention can be applied to scenes with cutting fluid and cutting dust.

[0075] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A thin-sheet workpiece in-machine clamping device with a rotating suction cup chuck, characterized in that: include: A spindle seat, an air source seat and a rotary suction cup chuck are provided, wherein a tool handle interface is provided at the bottom of the spindle seat; the air source seat is annular as a whole, and the air source seat is detachably connected to the lower part of the spindle seat, and the air source seat is provided with a seat drive air source gas path for introducing a pressure air source and a seat vacuum air source gas path for introducing a vacuum air source; The rotary suction cup chuck comprises: a tool handle assembly, a rotary cylinder, a hollow suction cup tumbler and a material suction cup; the tool handle assembly is an integrated structure composed of a tool handle body which is a columnar whole and an air path block which is a plate-shaped whole; a handle-driven air source access port and a handle vacuum air source access port are respectively provided at both ends of the top surface of the air path block, and a handle-driven air source access port connected to the handle-driven air source access port and a handle vacuum air source access port are respectively provided at the bottom of the tool handle body; the rotary cylinder is detachably fixed to the bottom of the tool handle body, and the rotary cylinder comprises: a cylinder-driven air source access port, a cylinder vacuum air source access port and a hollow cylinder rod; the two ends of the hollow suction cup tumbler are respectively fixed to the hollow cylinder rod and the material suction cup; the cylinder-driven air source access port The inlet is connected with the handle driving air source connection port, and is used for introducing pressurized gas into the interior of the rotating cylinder to drive the hollow cylinder rod, the hollow suction cup arm and the material suction cup to rotate as a whole. The two ends of the hollow cylinder rod are respectively connected with the handle vacuum air source connection port and the interior of the hollow suction cup arm, so as to introduce negative pressure and provide vacuum suction for the material suction cup. The rotating suction cup chuck includes a spindle installation state. When the rotating suction cup chuck is in the spindle installation state: the tool handle body passes through the air source seat, and the top of the tool handle body is inserted into the tool handle interface and fixed on the spindle seat, the upper surface of the air circuit block abuts against the lower surface of the air source seat, and the handle driving air source connection port is connected with the seat driving air source air circuit, and the handle vacuum air source connection port is connected with the seat vacuum air source air circuit.

2. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 1, characterized in that: The thin-film workpiece in-machine clamping equipment with a rotating suction cup chuck also includes a tool magazine tool sleeve and an automatic tool changing device, and the rotating suction cup chuck also includes a tool magazine accommodating state; when the rotating suction cup chuck is in the tool magazine accommodating state, the top of the tool handle body is installed on the tool magazine tool sleeve, and the automatic tool changing device is used to realize the switching of the thin-film workpiece in-machine clamping equipment with a rotating suction cup chuck between the spindle installation state and the tool magazine accommodating state; the outer side of the tool handle body is also provided with an insertion groove for clamping the automatic tool changing device, and the insertion groove is located below the air circuit block.

3. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 1 or 2, characterized in that: The rotary cylinder also includes: a cylinder assembly, a compression return spring and a piston assembly; a cylinder cavity is provided in the cylinder assembly, and the two ends of the hollow cylinder rod are respectively an inner rod section and an outer rod section, the inner rod section is located in the cylinder cavity, the outer rod section extends out of the cylinder assembly and is connected to the hollow suction cup rotating arm, and the hollow cylinder rod is rotatably connected to the cylinder assembly; the piston assembly is arranged in the cylinder cavity, and the piston assembly divides the cylinder cavity into a pressure gas action chamber and a spring action chamber, and the piston assembly is slidably connected to the cylinder assembly; the piston assembly is provided with a plug hole that runs axially therethrough, and the outer side wall of the piston assembly is provided with a recess A spiral driving groove, a hollow cylinder rod passes through the plug hole, and the outer side of the hollow cylinder rod is also provided with a driven block which is protruding and extends into the spiral driving groove, and the driven block is slidingly connected to the spiral driving groove; the cylinder driving air source access port and the cylinder vacuum air source access port are respectively arranged on both sides of the top of the cylinder barrel assembly; the cylinder barrel assembly also includes a cylinder driving air circuit and a cylinder vacuum air circuit formed therein; the two ends of the cylinder vacuum air circuit are respectively connected with the cylinder vacuum air source access port and the inner section of the rod, and the two ends of the cylinder driving air circuit are respectively connected with the cylinder driving air source access port and the pressure gas action chamber; the compression return spring is located in the spring action chamber.

4. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 3, characterized in that: The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck also includes a transfer plate detachably fixed to the top of the cylinder assembly; a transfer drive air path and a transfer vacuum air path are provided in the transfer plate, and the two ends of the transfer drive air path are a transfer drive air inlet end and a transfer drive air outlet end respectively; The two ends of the transfer vacuum air path are respectively a transfer vacuum air inlet end and a transfer vacuum air outlet end; The adapter drive air inlet end is located at the top of the adapter plate and is connected to the handle drive air source access port, and the adapter drive air outlet end is located at the bottom of the adapter plate and is connected to the cylinder drive air source access port; the adapter vacuum air inlet end is located at the top of the adapter plate and is connected to the handle vacuum air source access port, and the adapter vacuum air outlet end is located at the bottom of the adapter plate and is connected to the cylinder vacuum air source access port; the bottom of the shank body is also provided with a shank threaded connection hole, and the shank threaded connection hole is located between the shank drive air source access port and the shank vacuum air source access port; the adapter plate is rectangular, and an adapter upper connection hole is provided through the center of the adapter plate, and a adapter lower connection hole is provided through the four corners of the adapter plate respectively; the top surface of the cylinder assembly is a rectangular plane matching the bottom surface of the adapter plate, and a cylinder top connection hole is provided at the four corners of the top surface of the cylinder assembly respectively; the The in-machine clamping device for thin-film workpieces with a rotary suction cup chuck also includes a first threaded connector, which passes through the upper adapter connection hole and extends into the handle threaded connection hole, so that the adapter plate and the tool handle body are fixedly connected; the in-machine clamping device for thin-film workpieces with a rotary suction cup chuck also includes a second threaded connector, which passes through the lower adapter connection hole and extends into the cylinder top connection hole, so that the adapter plate and the cylinder assembly are fixedly connected; the distance between the handle drive air source connection port and the handle vacuum air source connection port is P1, the distance between the adapter drive air inlet end and the adapter vacuum air inlet end is P2, P1=P2; the distance between the adapter drive air outlet end and the adapter vacuum air outlet end is P3, the distance between the cylinder drive air source connection port and the cylinder vacuum air source connection port is P4, P3=P4; P4>P1.

5. The in-machine clamping device for thin-sheet workpieces with a rotary suction cup chuck according to claim 4, characterized in that: The cylinder assembly includes: a cylinder body, a front cover and a rear cover, the cylinder body as a whole is a cylinder with openings at both ends; the front cover and the rear cover are respectively fixed to the two open ends of the cylinder body by third threaded connectors; the cylinder vacuum air source access port is arranged at the top of the rear cover, and the cylinder vacuum air circuit is formed in the rear cover; the cylinder drive air source access port is arranged at the top of the front cover, and the cylinder drive air circuit is formed in the rear cover; the cylinder top connection holes are located at the four corners of the top surface of the cylinder body.

6. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 5, characterized in that: The piston assembly includes a piston cylinder and a piston disc. The piston cylinder is cylindrical as a whole. The plug hole runs through the piston cylinder. The piston disc divides the cylinder cavity into the pressure gas action chamber and the spring action chamber. The piston disc is a disc-shaped disc fixedly surrounding the outside of the piston cylinder as a whole, and the piston disc divides the piston cylinder into a left cylinder body and a right cylinder body. The spiral drive groove is arranged on the outer wall of the left cylinder body. A protruding plug slider is also arranged at one end of the outer wall of the left cylinder body away from the piston disc. A recessed cylinder linear slide groove is arranged on the inner wall of the cylinder body. Each of the plug sliders extends into the cylinder linear slide groove to realize the The piston assembly is slidably connected to the cylinder assembly; a recessed plug sealing ring groove is provided on the outer side of the piston disc, and a plug O-ring is provided in the plug sealing ring groove; the front cover also includes a cover support ring extending into the cylinder cavity, and the right cylinder body extends into the cover support ring, and the two are slidably connected; a support ring inner wall sealing ring is provided between the cover support ring and the outer side wall of the right cylinder body; a support ring outer wall sealing ring is provided between the cover support ring and the inner wall of the cylinder body; the cylinder drive air circuit includes a cylinder drive air source outlet, and the cylinder drive air source outlet is located at one end of the cover support ring close to the piston disc, and the cylinder drive air source outlet is connected to the air inlet groove.

7. The in-machine clamping device for thin-sheet workpieces with a rotary suction cup chuck according to claim 6, characterized in that: The hollow cylinder rod comprises a cylinder rod body and an annular pressure plate, the cylinder rod body being a circular tubular as a whole, the two ends of the cylinder rod body being respectively the inner section of the rod and the outer section of the rod, the annular pressure plate fixing ring being arranged on the outer side wall of the inner section of the rod; the cylinder rod body passes through the front cover, and the cylinder rod body is rotatably connected to the front cover, and a cover sealing ring is arranged between the cylinder rod body and the front cover; a recessed pressure plate receiving groove is arranged on a side surface of the rear cover close to the cylinder body, the annular pressure plate is completely received in the pressure plate receiving groove, the joint surface of the cylinder body and the rear cover is a plane, and the cylinder body covers the notch edge of the pressure plate receiving groove to limit the annular pressure plate from escaping from the pressure plate receiving groove; the outer side wall of the outer section of the rod is respectively provided with: a rod connecting hole, a rod torque transmission plane and a rod sealing ring groove; the hollow suction cup swivel arm comprises a swivel arm sleeve and a swivel arm vertically fixed to one side of the swivel arm sleeve The arm main pipe, one end of the arm main pipe away from the arm sleeve is connected to the material suction cup; the inner wall of the arm sleeve is provided with a tube torque transmission plane used in conjunction with the rod torque transmission plane, the arm sleeve as a whole is tubular coaxial with the cylinder rod body, and one end of the arm sleeve is provided with a tube sealing plate; the arm main pipe is as a whole square tube-shaped, the arm sleeve is sleeved on the rod outer section, and the tube sealing plate abuts against the outer end surface of the rod outer section, and the rod torque transmission plane is in contact with the tube torque transmission plane, the thin-film workpiece machine clamping device with a rotating suction cup chuck also includes a locking sealing nut, the locking sealing nut passes through the tube sealing plate and is threadedly connected to the rod outer section, a nut O-ring is provided between the locking sealing nut and the tube sealing plate, the rod sealing ring groove is provided with a rod O-ring, and the rod connecting hole is located between the nut O-ring and the rod O-ring.

8. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 7, characterized in that: The two rod torque transmission planes are arranged opposite to each other, and the rod torque transmission planes are located on the side of the rod O-ring away from the nut O-ring. The thin-film workpiece machine clamping device with a rotating suction cup chuck also includes two locking screws, and the two locking screws respectively penetrate the swing arm sleeve and respectively abut the two rod torque transmission planes; the cylinder rod body and the annular pressure plate are an integrally formed structure; the inner diameter of the annular pressure plate is larger than the inner diameter of the cylinder rod body, the inner wall of the pressure plate receiving groove extends into the inner wall of the annular pressure plate, and the inner wall of the pressure plate receiving groove is in contact with the inner wall of the annular pressure plate, and a plug disc O-ring is provided between the inner wall of the pressure plate receiving groove and the inner wall of the annular pressure plate.

9. The thin-sheet workpiece in-machine clamping device with a rotary suction cup chuck according to claim 8, characterized in that: A spring seat which is an overall cylindrical ring is also provided on one side of the cylinder body near the rear cover, and the part of the compression return spring near the rear cover is sleeved on the spring seat; the inner wall of the spring seat is slidably connected to the piston cylinder, the cylinder linear slide groove is provided on the inner wall of the spring seat, and the cylinder linear slide groove is formed by the inner wall of the spring seat being recessed; the number of the cylinder linear slide grooves is two, and the two cylinder linear slide grooves are arranged oppositely, the number of the plug sliders is two, and each cylinder linear slide groove is provided with a plug slider; the side wall of the cylinder body is provided with a piston left limiting step for limiting the piston disc, the end face of the cover support ring near the rear cover is the piston right limiting face, and the end face of the piston disc away from the left cylinder body is provided with a recessed air intake groove; the number of the spiral drive grooves is two, and the two spiral drive grooves are evenly arranged around the central axis of the piston cylinder, and the spiral drive grooves and the plug sliders are arranged alternately; the number of the driven blocks is two, and each spiral drive groove is provided with a driven block.

10. The in-machine clamping device for thin-sheet workpieces with a rotary suction cup chuck according to claim 9, characterized in that: The handle vacuum air source access port is provided with a recessed handle sealing ring groove, a handle O-ring is provided in the handle sealing ring groove, a straight air passage joint is provided on the handle drive air source access port, the upper part of the straight air passage joint is a raised cone, the lower part of the straight air passage joint is fixedly clamped on the inner wall of the handle drive air source access port, a joint O-ring is provided around the upper part of the straight air passage joint, and a seat sealing cone surface matching the lower end of the straight air passage joint is provided at the lower opening of the seat drive air source air path; when the rotary suction cup chuck is in the spindle installation state: the handle O-ring abuts against the lower surface of the air path block; the upper part of the straight air passage joint extends into the seat drive air source In the air circuit, the joint O-ring is respectively in contact with the outer side wall of the straight-through air joint and the seat sealing cone surface; the air circuit block is rectangular as a whole, and the two short sides of the air circuit block have arc-shaped protrusions flush with the air source seat; the bottom of the spindle seat also includes a plurality of shaft seat screw interfaces arranged around the tool handle interface, and the position of the air source seat corresponding to the shaft seat screw interface is provided with a seat connecting hole, and the seat connecting hole is staggered with the upper part of the air circuit block; the thin-film workpiece in-machine clamping device with a rotating suction cup chuck also includes a seat threaded connector, which passes through the seat connecting hole and extends into the shaft seat screw interface to realize the fixed connection between the air source seat and the spindle seat.

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