Flexible self-centering chuck for repairing purple sand vessel

Abstract

The invention relates to the technical field of chucks, and discloses a purple sand vessel repairing flexible self-centering chuck which comprises an outer chuck assembly and an inner chuck assembly, a linkage assembly is connected between the outer chuck assembly and the inner chuck assembly, and the outer chuck assembly and the inner chuck assembly are of a concentric ring structure. The inner chuck assembly can relatively rotate in the outer chuck assembly so that the positions of the clamping pieces can be adjusted according to the shape of a vessel. According to the flexible self-centering chuck for repairing the purple sand vessel, cooperative cooperation of two sets of chuck structures is achieved, the multi-claw clamping effect matched with multiple scenes can be formed on the outer side of the purple sand vessel, the outer chuck assembly synchronously moves through multiple claws on the outer side, arc-shaped vessels can be stably clamped, and the clamping effect is good. The inner chuck assembly synchronously moves by means of four sets of clamping pieces of a cross-shaped structure on the inner side, the square structural vessel can be reliably fixed, the inner chuck assembly and the inner chuck assembly can be independently controlled, and the clamping modes can be flexibly switched when the inner chuck assembly faces vessels of different shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chucks, in particular to a flexible self-centering chuck for repairing purple sand vessels. BACKGROUND

[0002] Purple sand vessels are a kind of pottery made of special clay, which has a unique material and process in the field of ceramics. The raw material of purple sand vessels is purple sand clay, which is a kind of clay-sandstone containing iron, composed of hydromica, kaolin, quartz, mica, and iron minerals. It is mainly divided into purple clay, green clay and red clay. It has natural particle composition and excellent thixotropy. The sintering temperature is generally 1100-1200℃. The sintered vessels have special granular structure and double open pore structure, with good water absorption and air permeability.

[0003] As a ceramic category carrying traditional craftsmanship and cultural value, purple sand vessels are prone to problems such as uneven thickness of the bottom and deviation of the flatness of the bottom after firing during the manufacturing process due to the particle composition characteristics of the purple sand clay and physical changes during high-temperature firing. Such problems directly affect the practical performance and appearance quality of the vessels and need to be handled through manual mud addition, fine finishing and other repair processing procedures. In the process of repairing and processing purple sand vessels, stable and reliable fixing is required to ensure the accuracy of manual finishing operations, so as to ensure that the flatness of the bottom after finishing meets the process requirements. Based on the above actual needs of purple sand vessel repair and processing, it is of great practical significance to develop related equipment for vessel fixing and processing precision guarantee. The related technology research and development of flexible self-centering chuck is carried out in this background to adapt to the specific scene of purple sand vessel repair and processing.

[0004] The prior art discloses a flexible self-centering chuck for repairing purple sand vessels, which comprises a bottom disc, three shafts, a clasp spring and a flexible limiting plate. The three shafts are arranged in a triangular shape in the outer layer of the bottom disc. The clasp spring is fixedly arranged at one end of the shaft. The flexible limiting plate is fixedly connected with the clasp spring. The outer layer of the bottom disc is provided with three shaft mounting holes. The beneficial effect is that the three claws of the flexible limiting plate are assisted by the three-way self-centering device to accurately position the center position of the purple sand cup. The surface of the un-fired shaped purple sand cup is delicate and soft, and improper force or hard tools can damage the surface shape. The three claws made of flexible material fix the cup body while ensuring the integrity of the cup body shape. The synchronous belt transmission ensures the same direction and position of the three claws to assist clamping the cup body, ensuring that the axis of the cup body and the rotary center of the iron disc are collinear. The turning tool assists in profile processing to ensure the flatness of the cup bottom.

[0005] While existing technologies utilize a three-claw self-centering device to clamp Zisha teapots, they have significant limitations in terms of clamping adaptability and effectiveness. Zisha teapots come in a wide variety of shapes, including round, irregular round, square, and multifaceted forms, while existing clamping structures are limited in form and cannot flexibly adapt to the clamping needs of different shapes. Furthermore, in existing devices that use two clamping devices, the two devices either move synchronously or drive independently, lacking flexibility in adjusting the driving method. Moreover, the relative positions of the two devices are fixed, making it impossible to make targeted and flexible adjustments based on the specific shape of the Zisha teapot.

[0006] It is evident that a flexible self-centering chuck for repairing Zisha ware is needed to solve the problems mentioned in the background technology, such as the single clamping structure of the three-claw self-centering device, which is difficult to adapt to various shapes of Zisha ware, and the lack of flexible adjustment space and fixed relative position of the driving method of the two sets of clamping devices used together, which cannot be adjusted in a targeted manner. Summary of the Invention

[0007] The purpose of this invention is to provide a flexible self-centering chuck for repairing Zisha (purple clay) ware, so as to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a flexible self-centering chuck for repairing Zisha teapots, comprising an outer chuck assembly and an inner chuck assembly, wherein a linkage assembly is connected between the outer chuck assembly and the inner chuck assembly, and the outer chuck assembly and the inner chuck assembly are in a concentric ring structure, wherein the inner chuck assembly can rotate relative to the outer chuck assembly inside to adjust the position of the clamping piece according to the shape of the teapot, and the linkage assembly is used to switch the drive transmission state between the outer chuck assembly and the inner chuck assembly, thereby realizing the connection or interruption of the transmission relationship between the two; The outer chuck assembly includes an intermediate gear that meshes with a rotating disk. The top of the rotating disk is provided with multiple sets of synchronously moving outer clamping members, and the interior of the rotating disk is connected with several sets of internal arc teeth. The inner chuck assembly includes a transmission gear that meshes with the rotating disk. The rotating disk has four sets of spiral grooves inside. The rotating disk drives four sets of cross-shaped inner clamping members to move synchronously through a pin that passes through the spiral grooves. The top of the rotating disk is connected to an intermediate disk, and the outer side of the intermediate disk is provided with an outer arc tooth that matches the inner arc tooth. The linkage component includes an upper fixed frame located at the bottom of the intermediate gear, and a first pulley group is arranged below the upper fixed frame. A second pulley group and a lower fixed frame are arranged below the first pulley group, and an insert is arranged between the first pulley group and the second pulley group. The insert passes through the second pulley group and can be connected to an extension shaft located inside the first pulley group.

[0009] Preferably, the top of the rotating disk is connected to a helical tooth, and the outer side of the rotating disk is connected to a first flat tooth. The rotating disk meshes with an intermediate gear through the first flat tooth, and a transmission wheel meshes with one side of the intermediate gear. The top of the transmission wheel is connected to a first rotating handle.

[0010] Preferably, the external clamping member includes a first movable block, and the bottom end of the first movable block is connected to a movable tooth that meshes with the spiral tooth. A detachable first clamping piece is connected to one side of the first movable block, and the first clamping piece is in contact with the purple clay ware.

[0011] Preferably, the intermediate disk is located inside the rotating disk and is rotatably connected to the rotating disk. An adjustment handle is connected to the bottom of the outer side of the intermediate disk. The interior of the intermediate disk is provided with a cross-shaped limiting groove, and the limiting groove is penetrated by a pin.

[0012] Preferably, the outer side of the rotating disk is connected with several sets of second flat teeth, and the transmission gear and the rotating disk mesh with the second flat teeth. The top of the transmission gear is connected with a second rotating handle, the top of the intermediate disk is connected with a cross moving block, and the interior of the cross moving block is provided with a cross moving groove. The interior of the cross moving groove is movably provided with an inner clamping member, and the inner clamping member includes a second moving block. The bottom end of the second moving block is connected with a pin, and the top end of the second moving block is provided with a detachable second clamping piece. The pin passes through the cross moving groove and extends below it.

[0013] Preferably, one end of the upper fixed frame is located at the bottom end of the intermediate gear, and the other end of the upper fixed frame is located at the center of the bottom end of the rotating disk. The lower fixed frame is located below the second pulley assembly, and one end of the lower fixed frame is located below the center of the bottom end of the rotating disk. The other end of the lower fixed frame is located below the transmission gear, and a connecting shaft is provided at the end of the lower fixed frame away from the upper fixed frame. The connecting shaft is connected to the transmission gear.

[0014] Preferably, the extension shaft has multiple sets of inner protrusions arranged at equal intervals inside, and the insert has two sets of symmetrical spring balls that are connected to the inner protrusions. The extension shaft has a cavity inside, and the cavity is penetrated by a through shaft that connects the upper fixing frame and the lower fixing frame.

[0015] Preferably, a spring protrusion is provided below the lower fixing frame near one end of the upper fixing frame, and a convex ring is connected to the outer side of the insert, and the convex ring matches the spring protrusion, with the two in contact with each other.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: First, this invention achieves coordinated operation of two chuck structures through the outer and inner chuck components, enabling a multi-claw gripping effect adaptable to various scenarios on the outside of the Zisha teapot. The outer chuck component, through the synchronous movement of its outer multi-claws, can securely grip curved teapots, while the inner chuck component, with the synchronous movement of its four inner cross-shaped clamping plates, can reliably fix square-shaped teapots. Both components can be controlled independently, allowing for flexible switching of gripping methods when dealing with teapots of different shapes. Simultaneously, the inner chuck component can rotate relative to the outer chuck component, adjusting the relative positions of the outer and inner clamping plates. For irregular teapots, by adjusting the position and coordinating the activation of the outer and inner chuck components, the adaptability range of the gripping shape can be further expanded. Furthermore, the outer and inner chuck components can also grip the inner and outer sides of the teapot separately, thus adapting to special structural teapots such as those with an outer circle and inner square shape, or an inner circle and outer square shape, significantly broadening the coverage of the fixed objects of the device.

[0017] Secondly, this invention achieves efficient and convenient clamping switching through the linkage components. When the outer chuck assembly and the inner chuck assembly have finished clamping the vessel and need to be released, simply press the insert upwards to establish a drive connection between the outer chuck assembly and the inner chuck assembly. At this time, by driving the outer chuck assembly to rotate, the outer chuck assembly and the inner chuck assembly can be controlled to release the clamping simultaneously. The release speed is fast, effectively improving the repair efficiency of Zisha ware. When the insert is not connected to the extension shaft, the outer chuck assembly and the inner chuck assembly are independently driven chucks. They do not interfere with each other and operate independently, flexibly adapting to the usage needs of different repair scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the components of the present invention disassembled; Figure 3 This is a schematic diagram showing the disassembled external chuck assembly of the present invention; Figure 4 This is a schematic diagram of the connection structure of the external chuck assembly of the present invention; Figure 5 This is a schematic diagram showing the disassembled internal chuck assembly of the present invention; Figure 6 This is a schematic diagram of the connection structure of the internal chuck assembly of the present invention; Figure 7 This is a schematic diagram showing the disassembly of the linkage components of the present invention; Figure 8 This is a schematic diagram of the connection structure of the linkage component of the present invention; Figure 9 This is a partial schematic diagram showing the connection between the insert and the extension shaft in cross-section according to the present invention.

[0019] Wherein: 1. Outer chuck assembly; 101. Rotary disk; 102. Helical gear; 103. First flat tooth; 104. Intermediate gear; 105. Transmission wheel; 106. First rotating handle; 107. Inner arc tooth; 108. Outer clamping member; 1081. First moving block; 1082. Moving tooth; 1083. First clamping piece; 2. Inner chuck assembly; 201. Intermediate disk; 202. Outer arc tooth; 203. Adjusting handle; 204. Cross moving block; 2041. Cross moving groove; 205. Inner clamping member; 2051. 2. Moving block; 2052. Second clamping piece; 2053. Pin; 206. Rotating disk; 207. Second flat tooth; 208. Spiral groove; 209. Transmission gear; 210. Second rotating handle; 3. Linkage assembly; 301. Upper fixed frame; 302. First pulley group; 303. Extension shaft; 3031. Inner protrusion; 304. Second pulley group; 305. Through shaft; 306. Lower fixed frame; 307. Spring protrusion; 308. Insert; 3081. Convex ring; 3082. Spring ball; 309. Connecting shaft. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-6 A flexible self-centering chuck for repairing Zisha (purple clay) ware includes an outer chuck assembly 1 and an inner chuck assembly 2. The outer chuck assembly 1 and the inner chuck assembly 2 are concentric ring structures. The inner chuck assembly 2 can rotate relative to the outer chuck assembly 1 to adjust the position of the clamping pieces according to the shape of the ware. The outer chuck assembly 1 includes an intermediate gear 104, which meshes with a rotating disk 101. The top of the rotating disk 101 is provided with multiple sets of synchronously moving outer clamping members 108, and the rotating disk 101 is internally connected to several... The dry assembly includes an inner arc tooth 107 and an inner chuck assembly 2, which includes a transmission gear 209 that meshes with a rotating disk 206. The rotating disk 206 has four sets of spiral grooves 208 inside. The rotating disk 206 drives four sets of cross-shaped inner clamping members 205 to move synchronously through a pin 2053 that passes through the spiral grooves 208. The top of the rotating disk 206 is connected to an intermediate disk 201, and the outer side of the intermediate disk 201 is provided with an outer arc tooth 202 that matches the inner arc tooth 107.

[0022] In this embodiment, the device is installed inside a tabletop, which is a processing table used for repair operations. When repairing Zisha (purple clay) ware, it is generally necessary to rotate the ware to pat and shape its exterior or trim the top edge. Therefore, the tabletop inside the processing table can also be configured as a rotatable structure. The tabletop can be circular, with its outer side connected to the processing table via bearings. Rotation is driven by a motor or manually. The outer chuck assembly 1 can rotate inside the tabletop, while the intermediate gear 104 and transmission wheel 105 are connected and installed to the tabletop. The first rotating handle 106 passes through the tabletop and is located on its outer side, facilitating the operator to rotate the first rotating handle 106. When the first rotating handle 106 is rotated, the transmission wheel 105 and intermediate gear 104, which are positioned and installed inside the tabletop, will cause the rotating disk 101 to rotate inside the tabletop. The rotation causes multiple sets of outer clamping parts 108 to move synchronously. The inner chuck assembly 2 is installed inside the rotating disk 101, also located inside the table. The inner chuck assembly 2 can rotate relative to the outer chuck assembly 1. That is, when the outer chuck assembly 1 remains stationary, the inner chuck assembly 2 can be rotated inside the rotating disk 101 by applying force through the handle 203. The purpose of this rotation is to adjust the distance between the outer clamping parts 108 and the inner clamping parts 205, so that it better conforms to the shape of the vessel to be repaired. In the inner chuck assembly 2, the second rotating handle 210 passes through the table, which is convenient for the operator to rotate and drive the clamping pieces in the inner chuck assembly 2 to move. A groove matching the movement trajectory of the inner clamping parts 205 can be opened on the table to facilitate the movement of the inner clamping parts 205. A rubber stop strip can be set in the groove so that the purple clay vessel to be processed can be placed normally on the table.

[0023] Specifically, the top of the rotating disk 101 is connected to a helical tooth 102, and the outer side of the rotating disk 101 is connected to a first flat tooth 103. The rotating disk 101 meshes with the intermediate gear 104 through the first flat tooth 103, and a transmission wheel 105 meshes with one side of the intermediate gear 104. The top of the transmission wheel 105 is connected to a first rotating handle 106.

[0024] In this embodiment, a limiting cover is provided at the position where the outer clamping member 108 is installed at the top of the rotating disk 101. The number of limiting covers matches the number of outer clamping members 108, and the limiting cover is inclined towards a circle. The setting trajectory of the limiting cover is the moving trajectory of the outer clamping member 108. The outer clamping member 108 moves inside the limiting cover. The limiting cover is connected to the mounting table. When the rotating disk 101 rotates, the limiting cover does not rotate with it. In this embodiment, there are three sets of outer clamping members 108, forming a stable triangular structure, which can clamp the arc-shaped purple clay teapot. The attached diagram does not limit the actual number of external clamping parts 108. Theoretically, the more external clamping parts 108 there are, the better the clamping effect and the closer it is to a circular clamping. However, since the shape of the vessel is not necessarily a perfect circle, a larger number of external clamping parts 108 is also a limitation on the clamping of the vessel. The actual number of external clamping parts 108 can be determined according to the on-site construction needs. In this embodiment, the first clamping piece 1083 is detachably installed at one end of the first moving block 1081 and can be installed and removed by snapping, bolting, or other means. Since the repair of Zisha ware involves two processes... There are two stages: the clay stage and the firing stage. In the clay stage, the vessel being held needs to be relatively soft and able to withstand a certain amount of pressure. Therefore, the first clamping piece 1083 can be replaced with silicone, rubber, or other soft materials. This will prevent damage to the vessel when in contact with the clay and will not easily leave marks. When holding the fired Zisha vessel, the first clamping piece 1083 can be replaced with a harder material with better clamping force. For example, a metal clamping piece covered with a soft material (such as a stainless steel base + silicone / flocking layer) can provide stable support, while the outer soft material (silicone, flocking, etc.) provides a more secure grip. The material (velvet) directly contacts the vessel, ensuring clamping force while preventing scratches. It is made of carbon fiber reinforced plastic (CFRP), which is lightweight and high-strength. The surface can be treated with anti-slip coating to prevent friction damage with the purple clay. The specific material can be changed according to the needs of the site. The first clamping piece 1083 has an inner arc-shaped structure, which can better fit the vessel with an arc-shaped contour and enhance the clamping effect. Both ends of the first moving block 1081 can be provided with structures that connect to the first clamping piece 1083. For example, the first moving block 1081 can be provided with screw holes at both the front and rear ends, so as to meet the purpose of bidirectional clamping of the outer clamping part 108 in both directions.

[0025] Specifically, the outer clamping member 108 includes a first moving block 1081, and the bottom end of the first moving block 1081 is connected to a moving tooth 1082 that meshes with the spiral tooth 102. A detachable first clamping piece 1083 is connected to one side of the first moving block 1081, and the first clamping piece 1083 is in contact with the purple clay ware.

[0026] In this embodiment, the outer chuck assembly 1 and the inner chuck assembly 2 can be adjusted independently so that the outer clamping member 108 and the inner clamping member 205 are located on the outer contour of the same circle. Then, all the clamping pieces in the outer chuck assembly 1 and the inner chuck assembly 2 are controlled to move synchronously, so that the same vessel can be clamped simultaneously using both sets of chucks, resulting in a better clamping effect. If dealing with an irregular vessel, the positions of the clamping pieces in the outer chuck assembly 1 and the inner chuck assembly 2 can be adjusted individually to roughly conform to the shape of the irregular vessel, such as a lace structure. In the contour of this shape, there are protruding and recessed parts, and the protrusions and recesses are generally distributed alternately, so the shape can be further optimized. The clamping pieces in the outer chuck assembly 1 and the inner chuck assembly 2 can respectively clamp the protruding and recessed parts, and together they can firmly clamp the irregularly shaped vessel. In practical applications, this device is also applicable to clamping vessels with an inner circle and outer square shape or an inner square and outer circle shape. The rotating disk 101 can be rotated to move multiple sets of outer clamping parts 108 to the inner side, while the inner clamping parts 205 are located on the outer side. In this way, vessels with an outer square and inner circle shape can be clamped. The outer circle and inner square structure can control the outer clamping parts 108 to be located on the outer side and move inward to clamp, and the inner clamping parts 205 to be located on the inner side and move outward to clamp. This device can meet the clamping needs of various situations.

[0027] Specifically, the intermediate disk 201 is located inside the rotating disk 101 and is rotatably connected to the rotating disk 101. An adjustment handle 203 is connected to the bottom of the outer side of the intermediate disk 201. A cross-shaped limiting groove is provided inside the intermediate disk 201, and the limiting groove is penetrated by a pin 2053.

[0028] In this embodiment, a cross-shaped moving block 204 is provided above the intermediate disk 201, and a rotating disk 206 is provided below it. The intermediate disk 201 is located inside the rotating disk 101 and contacts the rotating disk 101 through the outer arc teeth 202. The outer arc teeth 202 are arc-shaped and are evenly distributed on the outer side of the intermediate disk 201. The inner arc teeth 107 are also arc-shaped. Multiple sets of outer arc teeth 202 are engaged inside the inner arc teeth 107, so that the intermediate disk 201 is limited by the inner arc teeth 107 every time it rotates by an angle. This makes the angle adjustment more precise. Both the inner arc teeth 107 and the outer arc teeth 202 can be made of plastic material and are tightly engaged with each other.

[0029] Specifically, the outer side of the rotating disk 206 is connected with several sets of second flat teeth 207, and the transmission gear 209 and the rotating disk 206 are meshed through the second flat teeth 207. The top of the transmission gear 209 is connected with a second rotating handle 210. The top of the intermediate disk 201 is connected with a cross moving block 204, and the cross moving block 204 has a cross moving groove 2041 inside. The cross moving groove 2041 is movably provided with an inner clamping member 205 inside, and the inner clamping member 205 includes a second moving block 2051. The bottom end of the second moving block 2051 is connected with a pin 2053, and the top end of the second moving block 2051 is provided with a detachable second clamping piece 2052. The pin 2053 passes through the cross moving groove 2041 and extends below it.

[0030] In this embodiment, the intermediate disk 201 is fixedly connected to the cross-shaped moving block 204, and the intermediate disk 201 is rotatably connected to the rotating disk 206. A ball bearing groove is provided at the top of the rotating disk 206, and balls matching the ball bearing groove are connected to the bottom of the intermediate disk 201. This allows the rotating disk 206 to rotate below the intermediate disk 201. When the second rotating handle 210 is rotated, it drives the transmission gear 209 to rotate, which in turn drives the rotating disk 206, which meshes with it, to rotate. The rotating disk 206, rotating below the intermediate disk 201, only moves the four sets of inner clamping members 205 and does not drive the intermediate disk 201 to rotate. The rotating disk 101 rotates internally. When the intermediate disk 201 rotates, it will drive the cross moving block 204 to rotate as well, but it will not drive the rotating disk 206 to rotate as well. Therefore, when adjusting the distance between the two sets of clamping plates, the four sets of inner clamping members 205 may move in the clamping direction. At this time, the inner clamping members 205 can be moved back to their original positions by rotating the second rotating handle 210. The inner clamping members 205 move in the corresponding cross moving groove 2041. At this time, the pin 2053 passes through the cross moving groove 2041, the intermediate disk 201 and extends into the interior of the spiral groove 208, located at one end of the second moving block 2051. The second clamping piece 2052 is a detachable structure, which can be connected by snap-fit ​​or bolts. Connection structures can be provided at both the front and rear ends of the second moving block 2051, facilitating the installation of the second clamping piece 2052 in different positions. The material of the second clamping piece 2052 is the same as that of the first clamping piece 1083, allowing for material changes depending on the vessel's condition. Under normal circumstances, the second clamping piece 2052 is used to clamp square-shaped vessels, therefore its inner surface is planar to better match square vessels. When only the outer chuck assembly 1 needs to be activated, the rotating disk 101 rotates, driving the inner arc teeth. When the rotating disk 101 rotates together with the inner chuck assembly 2, if the adjusting handle 203 is not held, the inner chuck assembly 2 will also rotate with it. This will cause the inner chuck assembly 2 to rotate inside the outer chuck assembly 1 while the rotating disk 101 rotates. As the rotating disk 101 continues to rotate, multiple sets of outer clamping parts 108 will converge and approach the vessel to be clamped, while the clamping pieces in the inner chuck assembly 2 will not approach the vessel. Therefore, this rotation will not interfere with the clamping of the vessel. Of course, the operator can also hold the adjusting handle 203 to keep it fixed. In this way, when the rotating disk 101 rotates, the clamping pieces in the inner chuck assembly 2 will not rotate or move.

[0031] Please see Figures 7-9A flexible self-centering chuck for repairing Zisha (purple clay) ware is disclosed. An outer chuck assembly 1 and an inner chuck assembly 2 are connected by a linkage assembly 3. The linkage assembly 3 is used to switch the drive transmission state between the outer chuck assembly 1 and the inner chuck assembly 2, enabling the connection or interruption of their transmission relationship. The linkage assembly 3 includes an upper fixed frame 301 located at the bottom of an intermediate gear 104, and a first pulley group 302 is arranged below the upper fixed frame 301. A second pulley group 304 and a lower fixed frame 306 are arranged below the first pulley group 302. An insert 308 is arranged between the first pulley group 302 and the second pulley group 304. The insert 308 passes through the second pulley group 304 and can be connected to an extension shaft 303 located inside the first pulley group 302.

[0032] In this embodiment, the linkage component 3 is disposed between the outer chuck assembly 1 and the inner chuck assembly 2. The upper fixing frame 301 and the lower fixing frame 306 are rotatably connected, so that when the intermediate disk 201 rotates inside the rotating disk 101, the linkage relationship between the inner chuck assembly 2 and the outer chuck assembly 1 can still be maintained. The presence of the upper fixing frame 301 and the lower fixing frame 306 also provides support for the installation of the first pulley group 302 and the second pulley group 304, allowing the first pulley group 302 and the second pulley group 304 to rotate normally. When the intermediate disk 201 rotates, the lower fixing frame 306 will rotate around the through shaft 305, while the upper fixing frame 301 remains stationary. The second pulley group 304 and the first pulley group 302 will also not rotate. When the extension shaft 303 and the insertion... When insert 308 is interrupted, rotating the intermediate gear 104 will cause the first pulley group 302 to rotate, while the second pulley group 304 will not rotate. Similarly, when interrupted, rotating the transmission gear 209 will cause the lower fixed frame 306 to rotate, while the second pulley group 304 will not rotate. When the extension shaft 303 is connected to insert 308, rotating the intermediate gear 104 will cause the first pulley group 302 and the second pulley group 304 to rotate, which in turn will cause the rotating disk 206 to rotate. Similarly, when connected, rotating the transmission gear 209 will cause the lower fixed frame 306 and the second pulley group 304 to rotate, which in turn will cause the rotating disk 101 to rotate. Whether the handle is in the outer chuck assembly 1 or the inner chuck assembly 2, the synchronous opening and closing of the two chucks can be directly controlled.

[0033] Specifically, one end of the upper fixed frame 301 is located at the bottom end of the intermediate gear 104, and the other end of the upper fixed frame 301 is located at the center of the bottom end of the rotating disk 206. The lower fixed frame 306 is located below the second pulley group 304, and one end of the lower fixed frame 306 is located below the center of the bottom end of the rotating disk 206. The other end of the lower fixed frame 306 is located below the transmission gear 209, and a connecting shaft 309 is provided at the end of the lower fixed frame 306 away from the upper fixed frame 301. The connecting shaft 309 is connected to the transmission gear 209.

[0034] In this embodiment, when the extension shaft 303 and the insert 308 are connected, when the intermediate gear 104 rotates, it will drive the first pulley group 302 to rotate. The first pulley group 302 drives the extension shaft 303 to rotate, and the inner protrusion 3031 inside the extension shaft 303 will naturally rotate as well. The spring ball 3082, which is limited to the inner side of the inner protrusion 3031, will also rotate as the extension shaft 303 rotates. As a result, the entire insert 308 will rotate. The insert 308 drives the second pulley group 304 to rotate, which in turn drives the connecting shaft 309 to rotate. This causes the connecting shaft 309 to drive the transmission gear 209 to rotate, which in turn drives the clamping piece in the inner chuck assembly 2 to move in the clamping direction.

[0035] Specifically, the extension shaft 303 has multiple sets of inner protrusions 3031 equidistantly arranged inside, and the insert 308 has two sets of symmetrical spring balls 3082 through it. The spring balls 3082 match the inner protrusions 3031 and are engaged with each other. The extension shaft 303 has a cavity inside, and the cavity is penetrated by the through shaft 305. The through shaft 305 connects the upper fixing bracket 301 and the lower fixing bracket 306.

[0036] In this embodiment, the intermediate gear 104 is connected to the first pulley group 302 via a shaft. When the intermediate gear 104 rotates, it also drives the first pulley group 302 to rotate via the shaft. The first pulley group 302 includes two sets of pulleys and a belt wrapped around its outer side. When the pulley connected to the intermediate gear 104 via the shaft rotates, it drives the other set of pulleys to rotate via the belt. The pulley away from the intermediate gear 104 has an extension shaft 303 inside. The through shaft 305 connects the upper fixed frame 301 and the lower fixed frame 306, so that the lower fixed frame 306 can rotate around the through shaft 305. This rotation action conforms to the trajectory of the intermediate disk 201 rotating inside the rotating disk 101. Therefore, whether the extension shaft 303 is connected to the insert 308 or disconnected, the rotation of the intermediate disk 201 inside the rotating disk 101 does not affect the transmission of the linkage component 3.

[0037] Specifically, a spring protrusion 307 is provided below the lower fixed bracket 306 near the end of the upper fixed bracket 301, and a protruding ring 3081 is connected to the outside of the insert 308, and the protruding ring 3081 matches the spring protrusion 307, and the two are in contact with each other.

[0038] In this embodiment, a pressing piece is connected to the bottom end of the insert 308. When the pressing piece applies upward force, the insert 308 moves upward. The spring protrusion 307 can cooperate with the convex ring 3081. When the insert 308 is pressed upward, the convex ring 3081 passes the spring protrusion 307 and stays above it. When it is necessary to disconnect the connection between the extension shaft 303 and the insert 308, it is only necessary to pull the insert 308 downward so that the convex ring 3081 moves below the spring protrusion 307. When the insert 308 is disconnected from the extension shaft 303, the through shaft 305 still maintains the state of connecting the upper fixing frame 301 and the lower fixing frame 306. A rectangular block is provided on the insert 308. The inner groove of the second pulley group 304 is provided with a rectangular groove that matches the rectangular block, so that the insert 308 can only move up and down inside the second pulley group 304. If the insert 308 rotates, it will drive the second pulley group 304 to rotate together.

[0039] In use, the Zisha teapot to be clamped can be placed between the outer chuck assembly 1 and the inner chuck assembly 2. If it is an arc-shaped teapot, the transmission wheel 105 can be rotated by rotating the first rotating handle 106. The transmission wheel 105 drives the intermediate gear 104 meshing with it to rotate. The intermediate gear 104 drives the rotating disk 101 to rotate. The inner arc teeth 107 on the rotating disk 101 follow the rotation. The moving teeth 1082 mesh with the inner arc teeth 107, thereby driving multiple sets of outer clamping parts 108 to move synchronously. The multiple sets of outer clamping parts 108 approach the teapot in an arc trajectory and clamp it. If it is a square teapot, the second rotating handle 210 can be rotated so that the transmission gear 209 drives the rotating disk 206 to rotate. When the rotating disk 206 rotates, the four sets of outer clamping parts will be arranged in a cross shape due to the cooperation of the spiral groove 208 and the pin 2053. The inner clamping members 205 move synchronously, and the four sets of inner clamping members 205 move inside the corresponding cross moving grooves 2041. The four sets of second clamping pieces 2052 contact the outer edge of the square vessel and clamp it. If it is an irregularly shaped vessel, the operator can hold the adjustment handle 203 and rotate the middle plate 201 while keeping the rotating disk 101 stationary. This will cause the entire inner chuck assembly 2 to rotate together. The outer arc teeth 202 will be displaced on one side of the inner arc teeth 107. When the rotation stops, the multiple sets of inner arc teeth 107 will engage the outer arc teeth 202 and limit its movement. The inner clamping members 205 that adjust the position can cooperate with the outer clamping members 108. When the outer chuck assembly 1 and the inner chuck assembly 2 are driven separately, they will each use rotational power to move the clamping pieces and jointly clamp the irregular vessel. During the repair process, when it is necessary to lift the vessel for observation, the insert 308 can be pressed upwards. The insert 308 moves upwards and enters the interior of the extension shaft 303. The spring ball 3082 will retract and expand forward from the moment it enters the extension shaft 303 until it stops moving. Finally, the spring ball 3082 will be engaged inside the extension shaft 303, located inside the inner protrusion 3031. The spring protrusion 307 will limit the protrusion 3081, keeping the insert 308 connected to the extension shaft 303. At this time, if the first rotating handle 106 is rotated to make the rotating disk 101 rotate in the opposite direction to release the clamping state, the intermediate gear 104 will drive the first pulley group 302 to rotate. The first pulley group 302 rotates through the extension shaft 303. Shaft 303 and insert 308 drive the second pulley group 304 to rotate, which in turn drives the connecting shaft 309 to rotate, which in turn drives the transmission gear 209 to rotate. In this way, the rotating disk 206 will rotate synchronously in the opposite direction to the rotating disk 101. The outer clamping member 108 on the rotating disk 101 and the inner clamping member 205 on the cross moving block 204 will move backward synchronously, releasing the vessel from the clamp. In this way, the operator can easily and quickly remove the vessel without having to operate the outer chuck assembly 1 and the inner chuck assembly 2 separately. In addition, if the extension shaft 303 and insert 308 are kept connected, rotating only the first rotating handle 106 can also drive the outer clamping member 108 and the inner clamping member 205 to clamp the vessel synchronously.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of this application. The scope of this application is defined by the appended claims and their equivalents.

Claims

1. A flexible self-centering chuck for repairing Zisha (purple clay) ware, comprising an outer chuck assembly (1) and an inner chuck assembly (2), characterized in that: A linkage component (3) is connected between the outer chuck assembly (1) and the inner chuck assembly (2), and the outer chuck assembly (1) and the inner chuck assembly (2) are in a concentric ring structure. The inner chuck assembly (2) can rotate relative to the outer chuck assembly (1) to adjust the position of the clamping piece according to the shape of the vessel. The linkage component (3) is used to switch the drive transmission state between the outer chuck assembly (1) and the inner chuck assembly (2), which can realize the connection or interruption of the transmission relationship between the two. The outer chuck assembly (1) includes an intermediate gear (104), which meshes with a rotating disk (101). The top of the rotating disk (101) is provided with multiple sets of synchronously moving outer clamping members (108), and the rotating disk (101) is connected with several sets of internal arc teeth (107). The inner chuck assembly (2) includes a transmission gear (209), which meshes with the rotating disk (206). The rotating disk (206) has four sets of spiral grooves (208) inside. The rotating disk (206) drives four sets of cross-shaped inner clamping members (205) to move synchronously through a pin (2053) that passes through the spiral grooves (208). The top of the rotating disk (206) is connected to an intermediate disk (201), and the outer side of the intermediate disk (201) is provided with an outer arc tooth (202) that matches the inner arc tooth (107). The linkage component (3) includes an upper fixed frame (301) located at the bottom of the intermediate gear (104), and a first pulley group (302) is provided below the upper fixed frame (301). A second pulley group (304) and a lower fixed frame (306) are provided below the first pulley group (302). An insert (308) is provided between the first pulley group (302) and the second pulley group (304). The insert (308) passes through the second pulley group (304) and can be connected to an extension shaft (303) located inside the first pulley group (302).

2. The flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: The top of the rotating disk (101) is connected to a helical tooth (102), and the outer side of the rotating disk (101) is connected to a first flat tooth (103). The rotating disk (101) meshes with the intermediate gear (104) through the first flat tooth (103), and a transmission wheel (105) meshes with one side of the intermediate gear (104). The top of the transmission wheel (105) is connected to a first rotating handle (106).

3. A flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 2, characterized in that: The external clamping member (108) includes a first moving block (1081), and the bottom end of the first moving block (1081) is connected to a moving tooth (1082) that meshes with the spiral tooth (102). A detachable first clamping piece (1083) is connected to one side of the first moving block (1081), and the first clamping piece (1083) is in contact with the purple clay ware.

4. The flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: The intermediate disk (201) is located inside the rotating disk (101), and the intermediate disk (201) and the rotating disk (101) are rotatably connected. An adjustment handle (203) is connected to the bottom of the outer side of the intermediate disk (201). The interior of the intermediate disk (201) is provided with a cross-shaped limiting groove, and the limiting groove is penetrated by a pin (2053).

5. A flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: The outer side of the rotating disk (206) is connected with several sets of second flat teeth (207), and the transmission gear (209) and the rotating disk (206) mesh with each other through the second flat teeth (207). The top of the transmission gear (209) is connected with a second rotating handle (210). The top of the intermediate disk (201) is connected with a cross moving block (204), and the cross moving block (204) has a cross moving groove (2041) inside. The cross moving groove (2041) is movably provided with an inner clamping member (205), and the inner clamping member (205) includes a second moving block (2051). The bottom end of the second moving block (2051) is connected with a pin (2053), and the top end of the second moving block (2051) is provided with a detachable second clamping piece (2052). The pin (2053) passes through the cross moving groove (2041) and extends below it.

6. A flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: One end of the upper fixed frame (301) is located at the bottom end of the intermediate gear (104), and the other end of the upper fixed frame (301) is located at the center of the bottom end of the rotating disk (206). The lower fixed frame (306) is located below the second pulley group (304), and one end of the lower fixed frame (306) is located below the center of the bottom end of the rotating disk (206). The other end of the lower fixed frame (306) is located below the transmission gear (209), and a connecting shaft (309) is provided at the end of the lower fixed frame (306) away from the upper fixed frame (301). The connecting shaft (309) is connected to the transmission gear (209).

7. A flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: The extension shaft (303) has multiple sets of inner protrusions (3031) arranged at equal intervals inside. The insert (308) has two sets of symmetrical spring balls (3082) arranged through it. The spring balls (3082) match the inner protrusions (3031) and are engaged with each other. The extension shaft (303) has a cavity inside it, and the cavity is penetrated by a through shaft (305). The through shaft (305) connects the upper fixing frame (301) and the lower fixing frame (306).

8. A flexible self-centering chuck for repairing Zisha (purple clay) ware according to claim 1, characterized in that: A spring protrusion (307) is provided below the lower fixed frame (306) near the upper fixed frame (301). A protrusion ring (3081) is connected to the outside of the insert (308), and the protrusion ring (3081) matches the spring protrusion (307), and the two are in contact with each other.

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