Rotary pinch blade and processing apparatus

Abstract

The application relates to the technical field of processing equipment, and discloses a rotary clamping cutter and processing equipment. The rotary clamping cutter comprises a rotary positioning module and a cutter handle module; the rotary positioning module comprises a rotary adapter base, an air connection module and a friction stop module, the friction stop module is movably arranged on the rotary adapter base, and the air connection module is arranged on the rotary adapter base and is provided with an air inlet channel; the cutter handle module comprises a cutter handle module and a pneumatic clamping module, the pneumatic clamping module is arranged through a hollow cavity of the rotary adapter base and is in transmission connection with the cutter handle module, the pneumatic clamping module is in rotary connection with the rotary adapter base and forms a sealed air cavity which is in communication with the air inlet channel, a cylinder driving cavity which is in communication with the sealed air cavity is arranged in the pneumatic clamping module, and a friction limiting part which is in contact with the friction stop module is arranged on the pneumatic clamping module. According to the application, the rotary limiting between the rotary positioning module and the cutter handle module is realized under the condition that no external force is used for driving, the angle between the two modules can be relatively fixed, the cutter is prevented from being clamped, and the efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of processing equipment technology, and specifically relates to a rotary clamping knife and processing equipment. Background Technology

[0002] Currently, most components of 3C products are machined using CNC equipment. Taking a gripper cutter as an example, after the spindle of the CNC equipment removes the gripper cutter from the cutter head, it drives the cutter to rotate and move. At the same time, an air source is introduced through an external air pipe to drive the gripper cutter's jaws to close or open, thereby realizing the clamping and unloading actions.

[0003] However, in traditional gripper tools, the air intake module is integrated into the tool holder module and rotates with it. Because the air intake module is connected to an air pipe, this pipe not only restricts the overall rotation angle of the gripper tool but is also prone to detachment and damage during long-term operation. To address this, existing technology sets the air intake module to rotate relative to the tool holder module. However, this relative rotation method cannot provide circumferential positioning of the air intake module, causing the gripper tool to jam when installed onto the spindle or placed in the tool holder, directly impacting machining efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a rotary clamping tool and processing equipment to solve the problem of tool jamming when installing or placing the existing clamping tool into the tool disc.

[0005] To achieve the above objectives, the first aspect of this application provides a rotary clamping blade, comprising: A rotating positioning module includes a transfer base, an air receiving module, and a friction stop module. The transfer base has a through hollow cavity in the middle. The friction stop module is movably mounted on the transfer base. The air receiving module is mounted on the transfer base and has an air inlet channel inside. The tool holder module includes a tool holder module and a pneumatic clamping module. The pneumatic clamping module is arranged through the hollow cavity and is connected to the tool holder module in a driving manner. The pneumatic clamping module and the adapter base are rotatably fitted together and form a sealed air cavity that communicates with the air intake channel. The pneumatic clamping module is provided with a cylinder drive cavity that communicates with the sealed air cavity. The pneumatic clamping module is provided with a friction limiting part that contacts and cooperates with the friction stop module. In the absence of external force, the adapter base remains stationary relative to the tool holder module under the static friction force of the friction stop module and the friction limiting part.

[0006] As a further improvement to the above technical solution: In some embodiments, the friction stop module includes a plurality of friction contact components, which are disposed on the adapter base and spaced apart around the rotation axis of the pneumatic clamping module. The friction limiting part of the pneumatic clamping module is provided with an annular limiting groove around its own rotation axis, and the rolling contact end of the friction contact component is at least partially housed in the annular limiting groove and rolls in contact with the inner wall of the annular limiting groove.

[0007] In some embodiments, the friction contact assembly includes a resilient reset element and a ball bearing; The adapter base has a receiving hole along its own axis, the elastic reset member is received in the receiving hole, the ball is arranged at one end of the receiving hole near the friction limiting part and abuts against the elastic reset member, and the side of the ball away from the elastic reset member forms the rolling contact end.

[0008] In some embodiments, the friction contact assembly further includes an axial adjustment member disposed on the adapter base, the axial adjustment member having a pushing end extending into the receiving hole and abutting against the end of the elastic reset member away from the ball.

[0009] In some embodiments, the annular limiting groove includes a shallow groove section and a deep groove section along its circumference, with the two ends of the shallow groove section being the deep groove section, the arc length of the shallow groove section being less than the arc length of the deep groove section, and the groove depth of the deep groove section being greater than the groove depth of the shallow groove section.

[0010] In some embodiments, the pneumatic clamping module includes: A cylinder assembly passes through the hollow cavity and is driven to connect with the tool holder module. The cylinder assembly and the adapter base are rotatably fitted to form the sealed air cavity. The cylinder assembly has a cylinder drive cavity inside, and the pusher piston of the cylinder assembly is slidably disposed in the cylinder drive cavity. The gripper assembly is disposed on the cavity of the cylinder assembly and is drivenly connected to the pusher piston.

[0011] In some embodiments, the cylinder assembly further includes a pusher reset member disposed in the cylinder drive chamber. One end of the pusher reset member is connected to the top of the cylinder drive chamber, and the other end is connected to the pusher piston. In the initial state, the pusher reset member is in a retracted state.

[0012] In some embodiments, the gripper assembly includes at least two guide sliders, each guide slider having a driven gripper, the guide sliders slidingly engaging with the cavity, and at least two guide sliders having wedge-shaped grooves on opposite sides; The drive end of the pusher piston is provided with a wedge-shaped pusher part, which abuts against the wedge-shaped groove.

[0013] In some embodiments, the driven gripper is provided with a connecting post on the side near the corresponding guide slider, and the guide slider is provided with a positioning guide groove for the connecting post to be inserted, and the positioning guide groove and the connecting post are in clearance fit. An elastic buffer is also provided between the driven gripper and the corresponding guide slider.

[0014] To achieve the above objectives, a second aspect of this application provides a processing device, including a machine tool body and a rotary clamping tool according to the first aspect above. The machine tool body is provided with a processing spindle and an air supply module located on one side of the processing spindle. The processing spindle is provided with a tool clamping part connected to the tool holder module, and the air supply module is provided with an air inlet connected to the air receiving module. During the processing operation, the processing spindle rotates relative to the air supply module.

[0015] Compared to existing technologies, this application provides a rotary clamping blade and processing equipment that includes at least the following advantages: The rotary clamping tool provided in this application includes a rotary positioning module and a tool holder module. A pneumatic clamping module within the tool holder module is arranged through the hollow cavity of the adapter base and is drive-connected to the tool holder module. The pneumatic clamping module and the adapter base are rotaryly fitted and form a sealed air cavity. The pneumatic clamping module has a cylinder drive chamber connected to the sealed air cavity, and a friction limiting part on the pneumatic clamping module that contacts and engages with a friction stop module. An air receiving module is disposed on the adapter base and has an air inlet channel connected to the sealed air cavity. Thus, the air receiving module can sequentially introduce external airflow through the air inlet channel and the sealed air cavity into the cylinder drive chamber, serving as the clamping power source for the pneumatic clamping module. After the tool holder module is connected to the machining spindle, the output rotational motion of the machining spindle drives the pneumatic clamping module to rotate relative to the adapter base. Since the adapter base is relatively fixed, the entire tool holder module can achieve 360° rotation without being limited by the air path. Furthermore, without external force, the adapter base remains stationary relative to the tool holder module under the static friction force of the friction stop module and the friction limit part, thereby achieving rotational limit between the rotation positioning module and the tool holder module. This ensures that the angle between the rotation positioning module and the tool holder module can be relatively fixed during the installation or placement of the entire rotary clamping tool, avoiding tool jamming and thus improving work efficiency.

[0016] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 A front view of a rotary clamping blade mounted on an air supply module, provided in an embodiment of this application; Figure 2 for Figure 1 An exploded view of the rotating clamping blade shown. Figure 3 for Figure 1 A cross-sectional view of the rotating clamping blade shown; Figure 4 for Figure 3 A partially enlarged schematic diagram of the structure at point A; Figure 5 for Figure 3 The diagram shows an exploded view of the rotating clamping blade. Figure 6 This is a bottom view of the tool holder connecting seat in the tool holder module of the rotary clamping tool provided in the embodiment of this application; Figure 7 A front view of another rotary clamping blade installed on an air supply module, as provided in an embodiment of this application.

[0018] Explanation of reference numerals in the attached figures 100. Rotary positioning module; 110. Adapter base; 111. Receiving hole; 112. Hollow cavity; 120. Friction stop module; 121. Friction contact assembly; 1210. Elastic reset component; 1211. Ball bearing; 1211a. Contact end; 1212. Axial adjustment component; 1213. Guide sleeve; 130. Air inlet module; 131. Air inlet channel; 140. Adapter nozzle; 200. Tool holder module; 201. Sealed air chamber; 210. Tool holder module; 211. Locking buckle; 220. Pneumatic clamping module; 221. Cylinder assembly; 2210. Cavity; 2210a. Cylinder drive chamber; 2211. Tool holder connecting seat; 2211a. Friction limiting part; 2211b. Annular limiting groove; 2211c. Shallow groove section; 2211d. Deep groove section; 2211e. Locking port; 22 12. Rotating seat; 2212a. Flow guide channel; 2213. Pusher piston; 2213a. Wedge-shaped pusher part; 2214. Pusher reset part; 2215. Positioning pin; 222. Gripper assembly; 2220. Guide slider; 2220a. Wedge-shaped slide groove; 2220b. Positioning guide groove; 2221. Driven gripper; 2222. Connecting post; 2223. Elastic buffer; 2224. Baffle; 300. Gas supply module. Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0021] Please see Figure 1 , Figure 2 and Figure 3 On the one hand, the rotary clamping tool provided in this embodiment can be used in processing equipment, especially in CNC machining equipment.

[0022] The rotary clamping tool includes a rotary positioning module 100 and a tool holder module 200. The rotary positioning module 100 is mounted on the tool holder module 200 and forms a rotatable engagement with it. The tool holder module 200 can be connected to a machining spindle in a machining equipment. The machining spindle can drive the entire rotary clamping tool to rotate and move. The rotary positioning module 100 is externally connected to an air supply module 300, which is arranged on one side of the machining spindle and fixed relative to it.

[0023] The rotary positioning module 100 includes an adapter base 110, an air receiving module 130, and a friction stop module 120. The adapter base 110 has a through-hole hollow cavity 112 in its center. The friction stop module 120 is movably mounted on the adapter base 110. The air receiving module 130 is mounted on the adapter base 110 and has an air intake channel 131 inside. When the rotary clamping tool is installed on the machining spindle, the air receiving module 130 is used to connect with the air supply module 300, which can provide a driving air source, i.e., external airflow, to the air intake channel 131. The air intake end of the air intake channel 131 of the air receiving module 130 is provided with an adapter nozzle 140, which is used for quick insertion and engagement with the air outlet of the air supply module 300.

[0024] The tool holder module 200 includes a tool holder module 210 and a pneumatic clamping module 220. The pneumatic clamping module 220 is arranged through the hollow cavity 112 and is connected to the tool holder module 210 in a transmission manner. The pneumatic clamping module 220 and the adapter base 110 are rotatably fitted together and form a sealed air cavity 201 that communicates with the air intake channel 131. The pneumatic clamping module 220 is provided with a cylinder drive cavity 2210a that communicates with the sealed air cavity 201. The pneumatic clamping module 220 is provided with a friction limiting part 2211a that contacts and cooperates with the friction stop module 120.

[0025] It is understandable that when the machining spindle transmits torque to the tool holder module 210, it will drive the tool holder module 210 to rotate. Since the tool holder module 210 is connected to the pneumatic clamping module 220, the tool holder module 210 can drive the pneumatic clamping module 220 to rotate together, overcoming the maximum static friction force of the friction stop module 120 and the friction limit part 2211a. The driving air source can enter the cylinder driving chamber 2210a after passing through the sealed air chamber 201 to provide a power source for the pneumatic clamping module 220, thereby controlling the operation of the pneumatic clamping module 220, such as clamping materials or workpieces. Among them, under the action of static friction force of friction stop module 120 and friction limit part 2211a, the adapter base 110 is stationary relative to the tool holder module 200 under the action of static friction force of friction stop module 120 and friction limit part 2211a.

[0026] Therefore, in the rotary clamping tool provided in this embodiment, the air receiving module 130 can sequentially introduce external airflow through the air inlet channel 131 and the sealed air chamber 201 into the cylinder drive chamber 2210a, serving as the clamping power source for the pneumatic clamping module 220. Furthermore, after the tool holder module 210 is connected to the machining spindle, it utilizes the output rotational motion of the machining spindle to drive the pneumatic clamping module 220 to rotate relative to the adapter base 110. Since the adapter base 110 is relatively fixed, the entire tool holder module 200 can achieve 360° rotation without being limited by the air path, resulting in a larger rotation angle and a wider operating range.

[0027] Furthermore, without external force, the adapter base 110 remains stationary relative to the tool holder module 200 under the static friction force of the friction stop module 120 and the friction limiting part 2211a. That is to say, when there is no driving force from the machining spindle, the friction force between the friction stop module 120 and the friction limiting part 2211a can limit the rotation of the tool holder module 200 relative to the adapter base 110. This achieves rotational limiting between the rotation positioning module 100 and the tool holder module 200, ensuring that the angle between the rotation positioning module 100 and the tool holder module 200 can be relatively fixed during the installation or placement of the entire rotary clamping tool, avoiding tool jamming problems, and thus improving work efficiency.

[0028] To more clearly describe the technical solution of this application, the rotary clamping blade provided in this embodiment is described in detail below: Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 The aforementioned friction stop module 120 includes multiple friction contact components 121, which are disposed on the adapter base 110 and spaced apart around the rotation axis of the pneumatic clamping module 220. The multiple friction contact components 121 increase friction and facilitate the rotational positioning of the rotational positioning module 100 and the tool holder module 200, resulting in a higher positioning accuracy range.

[0029] The friction limiting part 2211a of the pneumatic clamping module 220 is provided with an annular limiting groove 2211b around its own rotation axis. The rolling contact end 1211a of the friction contact assembly 121 is at least partially housed in the annular limiting groove 2211b and rolls in contact with the inner wall of the annular limiting groove 2211b.

[0030] The adapter base 110 has a receiving hole 111 along its own axis (e.g. Figure 4 As shown, the number of receiving holes 111 is consistent with the number of friction contact components 121. Optionally, the receiving holes 111 are evenly spaced along the circumference of the adapter base 110 to improve positioning accuracy.

[0031] The friction contact assembly 121 is installed into the corresponding receiving hole 111, and the rolling contact end 1211a of the friction contact assembly 121 is at least partially exposed outside the receiving hole 111 so as to make rolling contact with the inner wall of the annular limiting groove 2211b.

[0032] In this embodiment, the friction contact assembly 121 includes an elastic reset member 1210 and a ball 1211. The elastic reset member 1210 is received in a receiving hole 111, and the ball 1211 is arranged at one end of the receiving hole 111 near the friction limiting portion 2211a and abuts against the elastic reset member 1210. The side of the ball 1211 away from the elastic reset member 1210 forms a rolling contact end 1211a.

[0033] Understandably, the elastic reset member 1210 uses its own elastic deformation to push the ball 1211 towards the end of the receiving hole 111 near the friction limiting part 2211a. During the rotation of the machining spindle driving the pneumatic clamping module 220, the friction limiting part 2211a applies pressure to the ball 1211 axially towards the receiving hole 111. The elastic reset member 1210 counteracts this pressure by contracting, allowing the ball 1211 to further retract into the receiving hole 111. Furthermore, the ball 1211 remains in a rolling state, thereby reducing wear and jamming on the ball 1211 during rotation of the pneumatic clamping module 220, ensuring structural reliability, and extending service life. Additionally, when the machining spindle stops rotating or the entire tool holder module 200 disengages from the machining spindle, the compressed elastic reset member 1210 resets, then pushes the ball 1211 out and into contact with the inner wall of the annular limiting groove 2211b, thereby generating a frictional force that restricts relative rotation.

[0034] Furthermore, the friction contact assembly 121 also includes an axial adjustment member 1212, which is disposed on the adapter base 110. The pushing end of the axial adjustment member 1212 extends into the receiving hole 111 and abuts against the end of the elastic reset member 1210 away from the ball 1211. Thus, by pushing the elastic reset member 1210 axially within the receiving hole 111 through the axial adjustment member 1212, the elastic thrust of the elastic reset member 1210 on the ball 1211 is adjusted, thereby adjusting the contact force between the ball 1211 and the inner wall of the annular limiting groove 2211b, and thus adjusting the magnitude of the friction force. This adjustment can be performed during later use and maintenance, as well as during the assembly of the rotating clamping blade.

[0035] During the installation of the ball bearing 1211, the elastic reset member 1210 is first adjusted by the axial adjustment member 1212 to move away from the annular limiting groove 2211b, ensuring that the elastic reset member 1210 has a larger compression stroke during assembly, thereby facilitating the installation of the ball bearing 1211. After the ball bearing 1211 is installed, the elastic reset member 1210 is then pushed by the axial adjustment member 1212 to move closer to the annular limiting groove 2211b, so that the elastic reset member 1210 is compressed to push the ball bearing 1211 to abut against the annular limiting groove 2211b, achieving the effect of friction positioning.

[0036] Optionally, the elastic reset element 1210 may be a spring, a spring sheet, or an elastic rubber component, etc. It should be understood that the above are merely illustrative examples and should not be construed as limiting the scope of protection of this application.

[0037] The axial adjustment component 1212 can be a top column with a set screw or bolt structure, or a liftable top rod. Among them, the top column with a set screw or bolt structure is threaded to the receiving hole 111, and the axial movement adjustment is achieved by using the threaded pair.

[0038] Please see Figure 3 , Figure 4 and Figure 5 In some embodiments, the friction contact assembly 121 further includes a guide sleeve 1213, which is inserted into the receiving hole 111 and has a guide through hole. The elastic reset member 1210, the ball 1211, and the axial adjustment member 1212 can all be integrated onto the guide sleeve 1213 to form a single assembly. For example, the axial adjustment member 1212 is received in the guide through hole, the elastic reset member 1210 is inserted into the guide through hole, and the ball 1211 is located at the end of the elastic reset member 1210 away from the axial adjustment member 1212. The ball 1211 can be received in the guide through hole.

[0039] Please refer to the following: Figure 6The annular limiting groove 2211b includes a shallow groove section 2211c and a deep groove section 2211d along its circumference. The shallow groove section 2211c and the deep groove section 2211d are arranged sequentially and continuously. Specifically, the two ends of the shallow groove section 2211c are the deep groove sections 2211d. The arc length of the shallow groove section 2211c is less than the arc length of the deep groove section 2211d, and the groove depth of the deep groove section 2211d is greater than the groove depth of the shallow groove section 2211c.

[0040] Understandably, because the groove depth of the deep groove section 2211d is greater than that of the shallow groove section 2211c, the frictional force on the rolling contact end 1211a of the ball 1211 when passing through the shallow groove section 2211c is greater than the frictional force in the deep groove section 2211d. Thus, frictional stop and limit are achieved through the frictional engagement between the shallow groove section 2211c and the ball 1211. The purpose of setting the deep groove section 2211d is to reduce the wear on the ball 1211 in the deep groove section 2211d during the rotation of the tool holder module 200, avoiding the constant application of the same frictional force as the shallow groove section 2211c, thereby extending its service life.

[0041] Please see Figure 2 , Figure 3 and Figure 5 The pneumatic clamping module 220 includes a cylinder assembly 221 and a gripper assembly 222. The cylinder assembly 221 passes through the hollow cavity 112 and is driven to connect with the tool holder module 210. The cylinder assembly 221 and the adapter base 110 are rotatably fitted to form a sealed air cavity 201. The cylinder assembly 221 has a cylinder drive cavity 2210a inside, and the pusher piston 2213 of the cylinder assembly 221 is slidably disposed in the cylinder drive cavity 2210a.

[0042] In this embodiment, the cylinder assembly 221 and the tool holder module 210 are connected by a snap-fit ​​mechanism.

[0043] Specifically, the cylinder assembly 221 includes a cavity 2210, a tool holder connecting seat 2211, and a rotating seat 2212, arranged from top to bottom. The rotating seat 2212 is disposed within the hollow cavity 112 of the adapter base 110 and rotatably engages with the adapter base 110. A sealing gas cavity 201 is formed between the rotating seat 2212 and the inner wall of the hollow cavity 112, and the sealing gas cavity 201 is arranged circumferentially around the rotating seat 2212. Furthermore, along the axial direction, the rotating seat 2212 is provided with sealing rings on both sides of the sealing gas cavity 201 to prevent gas leakage.

[0044] The upper ends of the tool holder connecting seat 2211 and the rotating seat 2212 are connected by bolts, and the tool holder connecting seat 2211 has the aforementioned friction limiting part 2211a on the side near the adapter base 110. The end of the tool holder connecting seat 2211 away from the rotating seat 2212 has a locking port 2211e. The tool holder module 210 has a locking buckle 211 corresponding to the locking port 2211e. After the fixing member passes through the locking port 2211e and enters the locking buckle 211, it can fix the tool holder module 210 and the tool holder connecting seat 2211, thereby realizing that the entire tool holder module 200 can be connected to the machining spindle.

[0045] The rotating seat 2212 has multiple positioning pins 2215 (positioning pins / positioning posts) at the end facing the cavity 2210. The positioning pins 2215 fix the rotating seat 2212 and the cavity 2210 together, so that the rotating seat 2212 can drive the cavity 2210 to rotate together when it rotates. The cavity 2210 is provided with the cylinder drive cavity 2210a, and the rotating seat 2212 is also provided with a guide channel 2212a, which connects the cylinder drive cavity 2210a and the sealing air cavity 201.

[0046] The gripper assembly 222 is disposed on the cavity 2210 of the cylinder assembly 221 and is drivenly connected to the pusher piston 2213. The pusher piston 2213 extends under the drive of airflow and retracts under the action of the pusher reset member 2214 (described below) disposed inside. In this way, the pusher piston 2213 drives the gripper assembly 222 to open or close by extending and retracting, thereby realizing the gripping of materials.

[0047] The cylinder assembly 221 also includes a pusher reset member 2214, which is disposed in the cylinder drive chamber 2210a. One end of the pusher reset member 2214 is connected to the top of the cylinder drive chamber 2210a, and the other end is connected to the pusher piston 2213. In the initial state, the pusher reset member 2214 is in a retracted state. When the pusher piston 2213 extends under the drive of airflow, the pusher reset member 2214 is stretched. When the pressure of the airflow is removed, the pusher reset member 2214 contracts by elastic deformation to pull the pusher piston 2213 back to its original position.

[0048] Optionally, the pusher reset element 2214 can be a spring or a spring sheet, etc. It should be understood that the above is only for illustrative purposes and should not be construed as limiting the scope of protection of this application.

[0049] Please see Figure 2 , Figure 3 and Figure 5The gripper assembly 222 includes at least two guide sliders 2220, each guide slider 2220 having a driven gripper 2221. This embodiment uses two guide sliders 2220 as an example. The guide sliders 2220 slide in cooperation with the cavity 2210, and a wedge-shaped groove 2220a is provided on the opposite side of the two guide sliders 2220. The driving end of the pusher piston 2213 has a wedge-shaped pusher portion 2213a, which abuts against the wedge-shaped groove 2220a. Thus, when the pusher piston 2213 extends and retracts, the wedge-shaped pusher portion 2213a can slide within the wedge-shaped groove 2220a to push the guide slider 2220 out or retract.

[0050] Please see Figure 7 In some embodiments, the driven gripper 2221 has a connecting post 2222 on the side near the corresponding guide slider 2220. The guide slider 2220 has a positioning guide groove 2220b for the connecting post 2222 to be inserted into, and the positioning guide groove 2220b and the connecting post 2222 are in clearance fit. An elastic buffer 2223 is also provided between the driven gripper 2221 and the corresponding guide slider 2220. Thus, when the driven gripper 2221 grips material, if the driven gripper 2221 accidentally collides directly with the material, the collision force can be absorbed and buffered by the elastic buffer 2223. That is, the collision force will not be transmitted to the machining spindle along the tool holder module 200, thus reducing the risk of damage to the machining spindle. Furthermore, the driven gripper 2221 can also grip some irregularly shaped workpieces.

[0051] Please see Figure 2 , Figure 3 and Figure 5 Furthermore, each of the two guide sliders 2220 has an insertion groove on its opposite side. The gripper assembly 222 also includes a baffle 2224, which is arranged between the two guide sliders 2220, with both ends of the baffle 2224 slidingly inserted into the corresponding insertion grooves. The baffle 2224 can limit the maximum stroke of the pusher piston 2213, preventing it from jamming and becoming unable to retract, thus improving the reliability of the structure.

[0052] On the other hand, please see Figures 1 to 7 This embodiment also provides a processing device, including a machine tool body and a rotary clamping tool according to the above embodiment. The machine tool body is provided with a processing spindle and an air supply module 300 located on one side of the processing spindle. The processing spindle is provided with a tool holder part connected to the tool holder module 210. The air supply module 300 is provided with an air inlet connected to the air receiving module 130. During processing, the processing spindle rotates relative to the air supply module 300, while the air supply module 300 is in a fixed state.

[0053] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A rotary clamping blade, characterized in that, include: The rotating positioning module (100) includes a transfer base (110), an air receiving module (130), and a friction stop module (120). The transfer base (110) has a through hollow cavity (112) in the middle. The friction stop module (120) is movably disposed on the transfer base (110). The air receiving module (130) is disposed on the transfer base (110) and has an air intake channel (131) inside. The tool holder module (200) includes a tool holder module (210) and a pneumatic clamping module (220). The pneumatic clamping module (220) is arranged through the hollow cavity (112) and is connected to the tool holder module (210) in a driving manner. The pneumatic clamping module (220) and the adapter base (110) are rotated together and form a sealed air cavity (201) that communicates with the air intake channel (131). The pneumatic clamping module (220) is provided with a cylinder drive cavity (2210a) that communicates with the sealed air cavity (201). The pneumatic clamping module (220) is provided with a friction limiting part (2211a) that contacts and cooperates with the friction stop module (120). In the absence of external force, the adapter base (110) remains stationary relative to the tool holder module (200) under the static friction force of the friction stop module (120) and the friction limiting part (2211a).

2. The rotary clamping blade according to claim 1, characterized in that, The friction stop module (120) includes a plurality of friction contact components (121), which are disposed on the adapter base (110) and distributed at intervals around the rotation axis of the pneumatic clamping module (220). The friction limiting part (2211a) of the pneumatic clamping module (220) is provided with an annular limiting groove (2211b) around its own rotation axis. The rolling contact end (1211a) of the friction contact assembly (121) is at least partially housed in the annular limiting groove (2211b) and rolls in contact with the inner wall of the annular limiting groove (2211b).

3. The rotary clamping blade according to claim 2, characterized in that, The friction contact assembly (121) includes an elastic reset member (1210) and a ball (1211). The adapter base (110) has a receiving hole (111) along its own axis. The elastic reset member (1210) is received in the receiving hole (111). The ball (1211) is arranged at one end of the receiving hole (111) near the friction limiting part (2211a) and abuts against the elastic reset member (1210). The side of the ball (1211) away from the elastic reset member (1210) forms the rolling contact end (1211a).

4. The rotary clamping blade according to claim 3, characterized in that, The friction contact assembly (121) further includes an axial adjustment member (1212), which is disposed on the adapter base (110). The pushing end of the axial adjustment member (1212) extends into the receiving hole (111) and abuts against the end of the elastic reset member (1210) away from the ball (1211).

5. The rotary clamping blade according to any one of claims 2-4, characterized in that, The annular limiting groove (2211b) includes a shallow groove section (2211c) and a deep groove section (2211d) along its circumference. The two ends of the shallow groove section (2211c) are the deep groove section (2211d). The arc length of the shallow groove section (2211c) is less than the arc length of the deep groove section (2211d), and the groove depth of the deep groove section (2211d) is greater than the groove depth of the shallow groove section (2211c).

6. The rotary clamping blade according to claim 1, characterized in that, The pneumatic clamping module (220) includes: The cylinder assembly (221) passes through the hollow cavity (112) and is driven to connect with the tool holder module (210). The cylinder assembly (221) and the adapter base (110) are rotated together to form the sealed air cavity (201). The cylinder assembly (221) is provided with the cylinder drive cavity (2210a). The pusher piston (2213) of the cylinder assembly (221) is slidably disposed in the cylinder drive cavity (2210a). The gripper assembly (222) is disposed on the cavity (2210) of the cylinder assembly (221) and is drivenly connected to the pusher piston (2213).

7. The rotary clamping blade according to claim 6, characterized in that, The cylinder assembly (221) further includes a pusher reset member (2214), which is arranged in the cylinder drive chamber (2210a). One end of the pusher reset member (2214) is connected to the top of the cylinder drive chamber (2210a), and the other end is connected to the pusher piston (2213). In the initial state, the pusher reset member (2214) is in a retracted state.

8. The rotary clamping blade according to claim 6, characterized in that, The gripper assembly (222) includes at least two guide sliders (2220), each guide slider (2220) is provided with a driven gripper (2221), the guide sliders (2220) are slidably engaged with the cavity (2210), and a wedge-shaped groove (2220a) is provided on the opposite side of at least two guide sliders (2220). The drive end of the pusher piston (2213) is provided with a wedge-shaped pusher part (2213a), which abuts against the wedge-shaped slide groove (2220a).

9. The rotary clamping blade according to claim 8, characterized in that, The driven gripper (2221) has a connecting post (2222) on the side near the corresponding guide slider (2220). The guide slider (2220) has a positioning guide groove (2220b) for the connecting post (2222) to be inserted. The positioning guide groove (2220b) and the connecting post (2222) are in clearance fit. Among them, an elastic buffer (2223) is provided between the driven gripper (2221) and the corresponding guide slider (2220).

10. A processing device, characterized in that, The machine tool includes a machine body and a rotary clamping tool according to any one of claims 1-9. The machine body is provided with a machining spindle and an air supply module (300) located on one side of the machining spindle. The machining spindle is provided with a tool clamping part that connects to the tool holder module (210). The air supply module (300) is provided with an air inlet that connects to the air receiving module (130). During the processing operation, the processing spindle rotates relative to the air supply module (300).

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