Clamping device and polishing equipment

Abstract

The utility model discloses a clamping device and polishing equipment, the clamping device comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is used for clamping one end of a tubular body along a first direction; the second clamping assembly is used for clamping the other end of the tubular body; wherein the first clamping assembly comprises a clamping seat body, a rotating seat body, an elastic clamping body and a clamping force maintaining assembly, the rotating seat body is rotationally connected to the clamping seat body and can rotate relative to the clamping seat body, the elastic clamping body is arranged in the rotating seat body, and the clamping force maintaining assembly is arranged between the elastic clamping body and the rotating seat body. The elastic clamping body is provided with a first clamping cavity used for clamping one end of the tubular body, the clamping force maintaining assembly is arranged on the rotating seat body and is in transmission connection with the elastic clamping body, and the clamping force maintaining assembly can shrink the first clamping cavity. The clamping device can improve the clamping reliability of the glass tube. The glass tube polishing machine is applied to the field of glass tube polishing.

Description

Technical Field

[0001] This utility model relates to the field of glass tube polishing, and in particular to clamping devices and polishing equipment. Background Technology

[0002] Glass tubes possess characteristics such as transparency, chemical stability, thermal stability, mechanical strength, electrical insulation, environmental friendliness, and good optical performance, making them widely used in optics, semiconductors, chemicals, electronics, medical fields, and other areas. Currently, glass tubes are generally produced using processes such as tube drawing, blown tube production, and extrusion. Although the inner and outer walls of the processed glass tubes are smooth, in some applications, secondary grinding and polishing are required to improve the performance of the glass tube products and further meet the requirements of high precision, smoothness, and flatness.

[0003] In related technologies, common polishing methods for glass tubes include mechanical polishing, chemical polishing, and flame polishing. Mechanical polishing uses a polishing machine with a polishing wheel and suitable polishing compound. After the glass tube is fixed in place, the polishing wheel contacts the surface of the glass tube and rotates at a uniform speed to grind the surface, gradually making it smooth. Chemical polishing involves immersing the glass tube in a specific chemical polishing solution, using a chemical reaction to remove minor surface unevenness. Flame polishing uses tools such as a blowtorch to generate a high-temperature flame, allowing the glass tube to rotate at a uniform speed through the flame. The high temperature melts and then solidifies the glass surface, resulting in a smooth and shiny finish. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a clamping device that can improve the reliability of glass tube clamping.

[0005] A polishing device with the above-mentioned clamping device is also proposed.

[0006] The clamping device according to a first aspect embodiment of the present invention includes:

[0007] A first clamping assembly is used to clamp one end of a tubular body along a first direction;

[0008] A second clamping assembly is used to clamp the other end of the tubular body;

[0009] The first clamping assembly includes a clamping base, a rotating base, an elastic clamping body, and a clamping force maintaining assembly. The rotating base is rotatably connected to the clamping base and is capable of rotating relative to the clamping base. The elastic clamping body is disposed within the rotating base and has a first clamping cavity for clamping one end of the tubular body. The clamping force maintaining assembly is disposed in the rotating base and is tractively connected to the elastic clamping body. The clamping force maintaining assembly is capable of reducing the size of the first clamping cavity.

[0010] The clamping device according to the embodiments of this utility model has at least the following beneficial effects: by controlling the size of the first clamping cavity through the clamping force maintaining component, the clamping force of the first clamping cavity on the glass tube is made more uniform and reasonable, which improves the reliability of clamping the glass tube and effectively reduces the possibility of the glass tube breaking due to excessive clamping force; at the same time, the clamping force maintaining component and the elastic clamping body are both located on the rotating seat. During the rotation of the rotating seat, the clamping force maintaining component and the elastic clamping body rotate together, so that the rotation speed of the rotating seat, the clamping force maintaining component and the elastic clamping body are basically the same, which makes the circumferential force on the glass tube uniform, avoids the glass tube from being broken by the influence of circumferential shear force, and improves the reliability of clamping the glass tube.

[0011] According to some embodiments of the present invention, the clamping force holding assembly includes a pressure plate and an elastic element, the elastic element is disposed between the pressure plate and the rotating seat, the elastic element is capable of elastic deformation along the first direction, and the pressure plate abuts against the elastic clamping body;

[0012] The pressure plate is configured such that: when the pressure plate is subjected to the elastic force of the elastic element and moves away from the rotating seat, the pressure plate is subjected to the driving force of the elastic element and abuts against the elastic clamping body to shrink the first clamping cavity; when the pressure plate is subjected to external pressure and moves toward the rotating seat, the pressure plate is subjected to external force and moves away from the elastic clamping body, and the elastic clamping body recovers at least partially its deformation.

[0013] According to some embodiments of the present invention, the clamping force holding assembly further includes a holding drive plate and a holding drive source. The holding drive source is tractively connected to the holding drive plate and can drive the holding drive plate to move along the first direction. The holding drive plate is located on the side of the pressure plate away from the rotating seat and can abut against the pressure plate and move toward the rotating seat.

[0014] According to some embodiments of the present invention, the first clamping assembly further includes a rotation drive component, which is tractively connected to the rotating base to drive the rotating base to rotate.

[0015] According to some embodiments of the present invention, the second clamping assembly includes at least three auxiliary fixing wheels, all of which together form a second clamping cavity for clamping the other end of the tubular body. The outer peripheral surface of each auxiliary fixing wheel is used to rotatably abut against the outer peripheral surface of the tubular body, and the auxiliary fixing wheel is rotatable relative to the tubular body.

[0016] According to some embodiments of the present invention, the clamping device further includes an adjustment component connected to the auxiliary fixing wheel, and the adjustment component is used to adjust the expansion or contraction of the second clamping cavity.

[0017] According to some embodiments of the present invention, the adjustment assembly includes at least three telescopic members, each telescopic member having a fixed part and a telescopic part, the telescopic part being throttlely connected to the fixed part, the telescopic part being capable of moving radially relative to the fixed part along the auxiliary fixed wheel, and each telescopic part being connected to one of the auxiliary fixed wheels.

[0018] According to some embodiments of the present invention, the second clamping assembly further includes a length adjusting member, which is arranged along the first direction and connected to the auxiliary fixing wheel. The length adjusting member is capable of extending or shortening along the first direction.

[0019] According to some embodiments of the present invention, the clamping device includes a rotating seat and an elastic clamping body disposed on the rotating seat. The elastic clamping body has a first clamping cavity for clamping the bottom end of the tubular body. The rotating seat has a liquid outlet channel, which is connected to the first clamping cavity.

[0020] The polishing apparatus according to a second aspect embodiment of the present invention includes:

[0021] frame:

[0022] The clamping device described in the first aspect embodiment is disposed on the frame.

[0023] The polishing equipment according to the second aspect of the present invention has at least the following beneficial effects: by using the clamping device in the first aspect embodiment, the clamping of the tubular body is more reliable and less prone to breakage.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a polishing device according to an embodiment of the present invention;

[0027] Figure 2 This is a side view of a polishing device according to an embodiment of the present invention.

[0028] Figure 3 This is a partial structural schematic diagram of the polishing device in a polishing apparatus according to an embodiment of the present invention;

[0029] Figure 4 This is a partial structural diagram of the clamping device in a polishing device according to an embodiment of the present invention;

[0030] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0031] Figure 6 This is a cross-sectional schematic diagram of the clamping device in a polishing device according to an embodiment of the present invention.

[0032] Icon labels:

[0033] Frame 100; Column base 110; Machine platform 120; Top frame 130; Partition 140;

[0034] Clamping device 200;

[0035] First clamping assembly 210; clamping seat 211; rotating seat 212; liquid outlet channel 2121; elastic clamping body 213; first clamping cavity 2131; main cylinder 2132; elastic cone 2133; clamping force holding assembly 214; pressure plate 2141; elastic element 2142; holding drive plate 2143; holding drive source 2144;

[0036] Second clamping assembly 220; auxiliary fixing wheel 221; second clamping cavity 222; adjusting assembly 223; length adjusting component 224;

[0037] Self-rotation drive component 230;

[0038] Polishing device 300; outer peripheral polishing part 310; inner peripheral polishing part 320; main frame 330; first frame 331; first connecting rod 3311; first connecting plate 3312; second frame 332; third frame 333; fourth frame 334; mounting plate 335; polishing drive assembly 340; shock absorber 350;

[0039] Cooling device 400; Cooling box 410; Inlet pipe 420; Recovery pipe 430;

[0040] Tubular body 500. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0044] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0045] Reference Figures 1 to 6 As shown in the figure, this utility model embodiment proposes a polishing device, which includes: a frame 100, a clamping device 200 and a polishing device 300.

[0046] In this embodiment, the frame 100 includes multiple columns 110, a machine platform 120, a top frame 130, and multiple partitions 140. The machine platform 120 is at a certain height above the ground, which facilitates manual maintenance or other operations. The machine platform 120 is supported by multiple columns 110, allowing it to be stably placed on the ground. The top frame 130 is positioned above the machine platform 120 via columns 110 and is spaced apart from the machine platform 120. The top frame 130 and the machine platform 120 are enclosed by multiple partitions 140, forming a polishing main chamber. The partitions 140 include transparent partitions, which facilitate real-time viewing by staff or monitoring systems.

[0047] The clamping device 200 is provided on the frame 100. The clamping device 200 includes a first clamping component 210 and a second clamping component 220. The first clamping component 210 is provided on the machine base 120, and the second clamping component 220 is provided on the top frame 130. The first clamping component 210 and the second clamping component 220 fix the two ends of the tubular body 500 along the first direction to fix the tubular body 500, which is a glass tube. The clamping device 200 can drive the tubular body 500 to rotate. The first clamping component 210 clamps the tubular body 500 and drives it to rotate. The second clamping component 220 slides against the tubular body 500 and remains fixed while sliding against the tubular body 500, allowing the tubular body 500 to rotate relative to the second clamping component 220. Alternatively, the first clamping component 210 can slide against the tubular body 500, and the second clamping component 220 can clamp the tubular body 500 and drive it to rotate. Or, the first clamping component 210 can clamp the tubular body 500 together and rotate together with it.

[0048] The polishing device 300 is mounted on the frame 100 and connected to the machine base 120 or the column base 110. The polishing device 300 includes an outer peripheral polishing part 310 and an inner peripheral polishing part 320. A polishing cavity is formed between the outer peripheral polishing part 310 and the inner peripheral polishing part 320. The polishing cavity is used to polish the tubular body 500. The outer peripheral polishing part 310 is used to polish the outer peripheral surface of the tubular body 500, and the inner peripheral polishing part 320 is used to polish the inner peripheral surface of the tubular body 500. The polishing device 300 can move along a first direction to polish the tubular body 500 along the first direction, and polishes both the inner and outer peripheral surfaces of the tubular body 500 simultaneously, making the polishing efficiency of the tubular body 500 higher.

[0049] It is worth understanding that the glass tube is clamped by the clamping device 200. After clamping, the glass tube rotates with the rotation of the clamping device 200. During the rotation of the glass tube, the outer peripheral polishing part 310 and the inner peripheral polishing part 320 of the polishing device 300 polish the outer peripheral surface and the inner peripheral surface of the glass tube simultaneously. When the polishing device 300 moves along the first direction, it will polish the entire outer peripheral surface and the inner peripheral surface of the glass tube, realizing the automated cleaning of the outer peripheral surface and the inner peripheral surface of the glass tube, making the cleaning efficiency of the glass tube higher.

[0050] Reference Figure 4 , Figure 5 and Figure 6As shown, in some specific embodiments of this utility model, the clamping device 200 includes a clamping seat 211, a rotating seat 212, an elastic clamping body 213, and a clamping force maintaining assembly 214. The rotating seat 212 is rotatably connected to the clamping seat 211 and can rotate relative to the clamping seat 211. The elastic clamping body 213 is disposed within the rotating seat 212 and has a first clamping cavity 2131 for clamping one end of the tubular body 500. The clamping force maintaining assembly 214 is disposed in the rotating seat 212 and is tractively connected to the elastic clamping body 213. The clamping force maintaining assembly 214 can reduce the size of the first clamping cavity 2131.

[0051] In this embodiment, the clamping seat 211 is connected to the frame 100 and specifically to the machine base 120 in the frame 100. The rotating seat 212 is rotatably connected to the clamping seat 211 via a bearing. The rotating seat 212 is disposed inside the clamping seat 211, and the bearing is disposed between the outer peripheral surface of the rotating seat 212 and the inner peripheral surface of the clamping seat 211, so that the rotating seat 212 can rotate relative to the clamping seat 211. The elastic clamping body 213 and the clamping force holding assembly 214 are both connected to the rotating seat 212 so as to rotate together with the rotating seat 212. The elastic clamping body 213 has a first clamping cavity 2131, which is used to fix one end of the tubular body 500. The size of the first clamping cavity 2131 is individually controlled by the clamping force holding component 214, so that the first clamping cavity 2131 can maintain an appropriate size to clamp the glass tube, effectively reducing the occurrence of glass tube breakage due to excessive or uneven stress. The inner circumferential surface of the first clamping cavity 2131 of the elastic clamping body 213 is provided with a stepped hole that matches the inner hole of the glass tube. The elastic clamping body 213 is cut into multiple parts along the circumferential direction to make the elastic clamping body 213 elastic.

[0052] It is understandable that by controlling the size of the first clamping cavity 2131 through the clamping force holding component 214, the clamping force of the first clamping cavity 2131 on the glass tube is made more uniform and reasonable, which improves the reliability of clamping the glass tube and effectively reduces the possibility of the glass tube breaking due to excessive clamping force. At the same time, the clamping force holding component 214 and the elastic clamping body 213 are both located on the rotating seat 212. During the rotation of the rotating seat 212, the clamping force holding component 214 and the elastic clamping body 213 rotate together, so that the rotation speed of the rotating seat 212, the clamping force holding component 214 and the elastic clamping body 213 is basically the same. This makes the circumferential force on the glass tube uniform, avoids the glass tube from being broken by the influence of circumferential shear force, and improves the reliability of glass tube clamping.

[0053] Reference Figure 4 , Figure 5 and Figure 6As shown, in some specific embodiments of this utility model, the clamping force holding assembly 214 includes a pressure plate 2141 and an elastic element 2142. The elastic element 2142 is disposed between the pressure plate 2141 and the rotating seat 212. The elastic element 2142 can undergo elastic deformation along a first direction. The pressure plate 2141 abuts against the elastic clamping body 213. The pressure plate 2141 is configured such that when the pressure plate 2141 is moved away from the rotating seat 212 by the elastic force of the elastic element 2142, the pressure plate 2141 is driven by the elastic element 2142 and abuts against the elastic clamping body 213 to reduce the first clamping cavity 2131. When the pressure plate 2141 is moved towards the rotating seat 212 by external pressure, the pressure plate 2141 is subjected to external force and moves away from the elastic clamping body 213, and the elastic clamping body 213 recovers at least part of its deformation.

[0054] In this embodiment, the elastic clamping body 213 includes a main cylinder portion 2132 and an elastic cone portion 2133 disposed on the outer peripheral surface of the main cylinder portion 2132. The main cylinder portion 2132 has a first clamping cavity 2131. The elastic cone portion 2133 is disposed at one end of the main cylinder portion 2132 away from the rotating seat 212, and the small end of the elastic cone portion 2133 faces the rotating seat 212, while the large end of the elastic cone portion 2133 is away from the rotating seat 212. The pressure plate 2141 includes a main body portion and a mounting cone hole disposed on the main body portion. The mounting cone hole is shaped like an oblique frustum. The small end of the mounting cone hole faces the rotating seat 212, while the large end of the mounting cone hole is away from the rotating seat 212. The inner peripheral surface of the mounting cone hole engages with the outer peripheral surface of the elastic cone portion 2133. When the pressure plate 2141 is moved away from the rotating seat 212 by the elastic force of the elastic body, the inner circumferential surface of the mounting cone hole will apply pressure to the outer circumferential surface of the elastic cone 2133, causing the elastic cone 2133 to apply pressure towards the inside of the main cylinder 2132. This causes the first clamping cavity 2131 inside the main cylinder 2132 to shrink and clamp the outer circumferential surface of the tubular body 500, thus clamping one end of the tubular body 500. When the pressure plate 2141 is compressed by external pressure, the pressure applied by the inner circumferential surface of the mounting cone hole to the outer circumferential surface of the elastic cone 2133 will gradually decrease. When the inner circumferential surface of the mounting cone hole separates from the outer circumferential surface of the elastic cone 2133, the pressure decreases to zero, and the elastic cone 2133 will return to its original shape under its own elastic force. The pressure applied by the main cylinder 2132 to the tubular body 500 is reduced or disappears, making it easier to install the tubular body 500 into or remove it from the main cylinder 2132.

[0055] It is worth understanding that the position of the pressure plate 2141 is controlled by the elasticity of the elastic element 2142, and the pressure of the pressure plate 2141 on the elastic clamping body 213 is controlled by the position of the pressure plate 2141, thereby controlling the pressure applied by the elastic clamping body 213 to the tubular body 500. This makes the clamping force applied by the elastic clamping body 213 to the tubular body 500 controllable, and can clamp and release the tubular body 500 within a suitable clamping force range, making it easy to remove or disassemble the tubular body 500.

[0056] Reference Figure 4 , Figure 5 and Figure 6 As shown, in some specific embodiments of this utility model, the clamping force holding assembly 214 further includes a holding drive plate 2143 and a holding drive source 2144. The holding drive source 2144 is tractively connected to the holding drive plate 2143 and can drive the holding drive plate 2143 to move along the first direction. The holding drive plate 2143 is located on the side of the pressure plate 2141 away from the rotating seat 212 and can abut against the pressure plate 2141 and move toward the rotating seat 212.

[0057] In this embodiment, the holding drive plate 2143 is moved along a first direction by the holding drive source 2144, so that the holding drive plate 2143 can abut against the side of the pressure plate 2141 away from the rotating seat 212. The pressure plate 2141, under the pressure of the holding drive plate 2143, moves towards the rotating seat 212 and compresses the elastic element 2142, causing the pressure plate 2141 to separate from the elastic clamping body 213. Alternatively, the holding drive source 2144 drives the holding drive plate 2143 to move away from the rotating seat 212, causing the compressed elastic element 2142 to recover its deformation and driving the pressure plate 2141 to press against the elastic clamping body 213, thus achieving pressure application of the pressure plate 2141 to the elastic clamping body 213. The holding drive source 2144 includes a thin-walled cylinder.

[0058] It is understandable that using the holding drive source 2144 and the holding drive plate 2143 to control the position of the pressure plate 2141 enables automated adjustment of the pressure plate 2141's position, facilitating the installation and removal of the glass tube, making it more convenient to use, and reducing the need for manual control of the pressure plate 2141, thus saving manpower. The holding drive plate 2143 provides a more balanced driving force on the pressure plate 2141, resulting in a more even force distribution on the pressure plate 2141 and a more uniform clamping force on the glass tube by the elastic clamping body 213, reducing the likelihood of the glass tube breaking due to uneven force.

[0059] Reference Figure 1As shown, in some specific embodiments of this utility model, the clamping device 200 further includes a rotation drive 230, which is disposed on the frame 100 and is connected to the rotating seat 212 to drive the rotating seat 212 to rotate.

[0060] In this embodiment, the self-rotating drive 230 includes a motor and a transmission belt. The transmission belt is connected to the output shaft of the motor and the rotating seat 212. The rotation speed of the transmission belt is controlled by the rotation output of the motor, so that the rotation speed of the rotating seat 212 is controllable and the rotation of the rotating seat 212 is more reliable.

[0061] Reference Figure 4 and Figure 5 As shown, in some specific embodiments of this utility model, the clamping device 200 further includes at least three auxiliary fixing wheels 221. All auxiliary fixing wheels 221 are connected to the frame 100 and together form a second clamping cavity 222 for clamping the other end of the tubular body 500. The outer peripheral surface of the auxiliary fixing wheel 221 is used to rotate and abut against the outer peripheral surface of the tubular body 500. The auxiliary fixing wheel 221 can rotate relative to the tubular body 500.

[0062] In this embodiment, the clamping device 200 includes a second clamping assembly 220, which comprises three auxiliary fixing wheels 221. These three auxiliary fixing wheels 221 are evenly distributed along the circumference of the tubular body 500, allowing them to uniformly support the tubular body 500. A second clamping cavity 222 is also formed between the three auxiliary fixing wheels 221, providing uniform and reliable fixation of the auxiliary fixing wheels 221, thus making the fixation of the tubular body 500 more reliable. The rotation axis of the auxiliary fixing wheels 221 is aligned with the rotation axis of the tubular body 500. When the first clamping assembly 210 drives the tubular body 500 to rotate, the three auxiliary fixing wheels 221 will rotate under the influence of the tubular body 500, and together they abut against the tubular body 500 to fix the other end of the tubular body 500.

[0063] It is worth understanding that by using multiple auxiliary fixing wheels 221 to abut and fix the tubular body 500, the other end of the tubular body 500 is fixed by the second clamping component 220, and both ends of the tubular body 500 are fixed, which effectively improves the stability of the tubular body 500 during rotation.

[0064] Reference Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the clamping device 200 further includes an adjustment component 223, which is disposed between the frame 100 and the auxiliary fixed wheel 221. The adjustment component 223 is used to adjust the expansion or contraction of the second clamping cavity 222.

[0065] It is understandable that by adjusting the size of the second clamping cavity 222 through the adjusting component 223, the adjusting component 223 can be adapted to tubular bodies 500 of different diameters, thereby improving the adaptability of the polishing device 300. It should be noted that the second clamping component 220 is adjusted through the adjusting component 223, and the first clamping component 210 can be adapted to tubular bodies 500 of different diameters by replacing the elastic clamping body 213 of different sizes.

[0066] Reference Figure 4 and Figure 5 As shown, in some specific embodiments of this utility model, the adjustment component 223 includes at least three telescopic members. Each telescopic member has a fixed part and a telescopic part. The telescopic part is throttle-connected to the fixed part. The fixed part is connected to the frame 100. The telescopic part can move radially relative to the fixed part along the auxiliary fixed wheel 221. Each telescopic part is connected to an auxiliary fixed wheel 221.

[0067] In this embodiment, the telescopic component includes a push rod cylinder, which has a fixed part and a telescopic part. The telescopic part is arranged radially along the tubular body 500, so that the telescopic part drives the auxiliary fixed wheel 221 to move radially along the tubular body 500, thereby adjusting the radial dimension of the second clamping cavity 222 formed by all the auxiliary fixed wheels 221, so that the second clamping cavity 222 can be adapted to tubular bodies 500 of different diameters.

[0068] Reference Figure 4 and Figure 5 As shown, in some specific embodiments of this utility model, the clamping device 200 further includes a length adjusting member 224, which is disposed between the frame 100 and the auxiliary fixed wheel 221 along the first direction. The length adjusting member 224 can be extended or shortened along the first direction.

[0069] It is worth understanding that the length adjustment component 224 can adjust the distance between the auxiliary fixing wheel 221 and the top frame 130 along the first direction. In other words, the length adjustment component 224 can adjust the distance between the first clamping component 210 and the second clamping component 220 along the first direction to adapt to tubular bodies 500 of different lengths and to clamp tubular bodies 500 of different sizes at the optimal position, making the fixing of the tubular body 500 more reliable and the polishing of the tubular body 500 more reliable.

[0070] In this embodiment, the length adjustment member 224 includes a bolt, the telescopic part has a threaded hole along the first direction, the bolt is threaded into the threaded hole, and one end of the bolt is provided with an auxiliary fixing wheel 221 that can rotate. The bolt adjusts the distance from the auxiliary fixing wheel 221 to the telescopic part along the first direction by rotating the bolt, thereby adjusting the distance between the first clamping assembly 210 and the second clamping assembly 220 along the first direction.

[0071] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of this utility model, the polishing device 300 includes a first frame 331, a second frame 332, a third frame 333, a fourth frame 334, and a mounting plate 335. The first frame 331, the second frame 332, and the fourth frame 334 are all arranged along a first direction. The third frame 333 is connected between the first frame 331 and the fourth frame 334, and is also connected between the second frame 332 and the fourth frame 334. The first frame 331 surrounds the second frame 332. The mounting plate 335 is located at the end of the first frame 331 away from the third frame 333. The outer peripheral polishing part 310 is located on the mounting plate 335, and the inner peripheral polishing part 320 is located at the end of the second frame 332 away from the third frame 333.

[0072] In this embodiment, the first frame 331 includes multiple first connecting rods 3311 and a first connecting plate 3312 disposed at one end of the first connecting rods 3311. The other end of the first connecting rods 3311 is connected to a mounting plate 335, and an outer peripheral polishing plate is disposed on the mounting plate 335. The mounting plate 335 is annular, and the multiple first connecting rods 3311 are evenly spaced around the circumference of the mounting plate 335, so that the mounting plate 335 is subjected to uniform force and the connection between the first connecting rods 3311 and the mounting plate 335 is reliable. The second frame 332 includes a second connecting rod. One end of the second connecting rod is connected to the first connecting plate 3312. The second connecting rod is disposed in the cavity in the middle of the mounting plate 335, and the other end of the second connecting rod is connected to the inner peripheral polishing part 320. The outer peripheral surface of the inner peripheral polishing part 320 and the inner peripheral surface of the outer peripheral polishing part 310 are spaced apart to allow the tubular body 500 to pass through and be cleaned simultaneously by the inner peripheral polishing part 320 and the outer peripheral polishing part 310. The third frame 333 includes a second connecting plate and / or a third link. The second connecting plate structure has better structural performance, making the connection between the first frame 331, the second frame 332 and the fourth frame 334 more reliable. The fourth frame 334 includes a fourth connecting plate and / or a fourth link.

[0073] Reference Figure 1 As shown, in some specific embodiments of this utility model, the polishing device 300 further includes a polishing drive assembly 340, which includes a sliding rod, a slider, and a polishing drive source. The sliding rod is arranged along a first direction, the slider is threadedly connected to the sliding rod, the polishing drive source is drivenly connected to the sliding rod and is used to drive the sliding rod to rotate, and the slider is connected to the fourth frame 334.

[0074] It is worth understanding that the fourth frame 334 is connected to the slider. When the slider moves along the first direction, the fourth frame 334 moves together with the slider. That is, the main frame 330 moves along the first direction, so that the outer peripheral polishing part 310 and the inner peripheral polishing part 320 move relative to the tubular body 500 along the first direction, which facilitates the overall polishing of the outer peripheral surface of the tubular body 500 and makes it more convenient to use.

[0075] In this embodiment, the polishing drive source drives the sliding rod to rotate, and the slider is limited and moves mainly along the first direction. When the sliding rod rotates, the rotation of the thread is converted into linear movement of the slider along the first direction, thus realizing the movement of the slider along the first direction. The polishing drive source includes a motor, the sliding rod is a lead screw, and the slider is a lead screw-slider structure. The slider can be slidably connected to the lead screw thread via ball bearings. The polishing drive assembly 340 constitutes a lead screw-slider structure.

[0076] Reference Figure 3 As shown, in some specific embodiments of this utility model, the peripheral polishing part 310 includes at least three peripheral polishing wheels and at least three peripheral polishing drive sources. The peripheral polishing drive sources are disposed on the mounting plate 335 and are connected to the peripheral polishing wheels. All the peripheral polishing wheels together form a first polishing cavity, which is used to polish the outer peripheral surface of the tubular body 500.

[0077] In this embodiment, the peripheral polishing drive source includes a micro motor, and the first connecting rod 3311 is a hollow tube. Part of the micro motor is hidden inside the hollow tube and is connected to the peripheral polishing drive source via a coupling. Driven by the micro motor, the peripheral polishing wheel can rotate. The peripheral polishing wheel includes a louvered wool wheel, which comprises multiple wool layers spaced apart along the circumference of the wheel body. These multiple wool layers polish the outer peripheral surface of the glass tube, resulting in a better polishing effect.

[0078] Reference Figure 3 As shown, in some specific embodiments of this utility model, the peripheral polishing wheel is detachably connected to the peripheral polishing drive source, so that the peripheral polishing wheel can be replaced with different sizes, which is convenient for polishing glass tubes of different diameters.

[0079] Reference Figure 2 and Figure 3 As shown, in some specific embodiments of this utility model, the polishing device 300 further includes a shock absorber 350 disposed between the first frame 331 and the third frame 333. The shock absorber 350 can reduce the vibration of the first frame 331, so that the polishing effect of the outer peripheral polishing wheel on the first frame 331 is better. In addition, the vibration of the outer peripheral polishing wheel is not easily transmitted to the slider, reducing the impact of vibration on the slider movement and improving the operational reliability of the slider.

[0080] In this embodiment, the shock absorber 350 is disposed between the first connecting plate 3312 and the third frame 333. The shock absorber 350 can dampen the outer peripheral polished part 310 on the first frame 331 and the inner peripheral polished part 320 on the second frame 332.

[0081] Reference Figure 3 As shown, in some specific embodiments of this utility model, the inner circumferential polishing part 320 includes an inner circumferential polishing wheel and an inner circumferential polishing drive source. The inner circumferential polishing drive source is disposed on the mounting plate 335 and is connected to the inner circumferential polishing wheel. All the inner circumferential polishing wheels together form a second polishing cavity, which is used to polish the inner circumferential surface of the tubular body 500.

[0082] In this embodiment, the inner circumferential polishing drive source includes a micro motor. The first connecting rod 3311 is a hollow tube, with part of the micro motor hidden inside the hollow tube and connected to the inner circumferential polishing drive source via a coupling. Driven by the micro motor, the inner circumferential polishing wheel can rotate. The inner circumferential polishing wheel includes a louvered wool wheel, which comprises multiple wool layers spaced sequentially along the circumference of the wheel body. These multiple wool layers polish the inner circumferential surface of the glass tube, resulting in a better polishing effect.

[0083] Reference Figure 3 As shown, in some specific embodiments of this utility model, the inner circumferential polishing wheel is detachably connected to the inner circumferential polishing drive source, so that the inner circumferential polishing wheel can be replaced with different sizes, which is convenient for polishing glass tubes of different diameters.

[0084] Reference Figure 1 As shown, in some specific embodiments of this utility model, the clamping device 200 is used to clamp the tubular body 500 in the vertical direction; the polishing equipment also includes a cooling device 400, which includes a cooling tank 410, an input pipe 420, a recovery pipe 430, and a drive pump. The input pipe 420 and the recovery pipe 430 are both connected to the cooling tank 410. The drive pump is connected to the input pipe 420 and the cooling tank 410 and can transport the cooling polishing medium in the cooling tank 410 to the input pipe 420. The input pipe 420 is used to transport the cooling polishing medium to the top of the tubular body 500, and the recovery pipe 430 is used to recover the cooling polishing medium at the bottom of the tubular body 500.

[0085] It is understandable that the cooling polishing medium is delivered to the inner and outer surfaces of the tubular body 500 via the cooling device 400. During the polishing process of the tubular body 500, the cooling polishing medium can reduce the temperature of the glass tube, preventing breakage due to uneven temperature. Simultaneously, the cooling polishing medium includes polishing fluid, which assists the polishing device 300 in polishing and improves the polishing effect of the glass tube. After passing through the glass tube, the cooling polishing medium is recycled through the recovery pipe 430, improving the utilization efficiency of the cooling polishing medium and reducing costs.

[0086] In this embodiment, the cooling tank 410 has a certain volume to store sufficient cooling polishing medium. One end of the input pipe 420 is connected to the cooling tank 410, and the other end is fixed to the top frame 130, facing the glass tube. There can be one or more input pipes 420, with some facing the outer circumferential surface of the glass tube and others facing the inner circumferential surface. The upper surface of the machine base 120 has a recovery through-hole, and the upper surface of the machine base 120 is recessed towards the recovery through-hole, allowing the cooling polishing medium to automatically flow into the recovery through-hole under gravity. One end of the recovery pipe 430 is connected to the recovery through-hole, and the other end is connected to the cooling tank 410. The recovery pipe 430 is used to recover the cooling polishing medium from the outer circumferential surface of the bottom of the tubular body 500.

[0087] Reference Figure 6 As shown, in some specific embodiments of this utility model, the clamping device 200 includes a rotating seat 212 and an elastic clamping body 213 disposed on the rotating seat 212. The elastic clamping body 213 has a first clamping cavity 2131 for clamping the bottom end of the tubular body 500. The rotating seat 212 has a liquid outlet channel 2121, which is connected to the first clamping cavity 2131.

[0088] In this embodiment, the liquid outlet channel 2121 is connected to the recovery pipe 430. Through the connection between the first clamping cavity 2131 and the liquid outlet channel, the cooling and polishing medium on the inner circumferential surface of the tubular body 500 can enter the liquid outlet channel through the first clamping cavity 2131 and then enter the recovery pipe 430, thereby realizing the recovery of the cooling and polishing medium on the bottom inner circumferential surface of the tubular body 500 and making the utilization efficiency of the cooling and polishing medium higher.

[0089] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A clamping device, characterized in that, include: A first clamping assembly is used to clamp one end of a tubular body along a first direction; A second clamping assembly is used to clamp the other end of the tubular body; The first clamping assembly includes a clamping base, a rotating base, an elastic clamping body, and a clamping force maintaining assembly. The rotating base is rotatably connected to the clamping base and is capable of rotating relative to the clamping base. The elastic clamping body is disposed within the rotating base and has a first clamping cavity for clamping one end of the tubular body. The clamping force maintaining assembly is disposed in the rotating base and is tractively connected to the elastic clamping body. The clamping force maintaining assembly is capable of reducing the size of the first clamping cavity.

2. The clamping device according to claim 1, characterized in that: The clamping force holding assembly includes a pressure plate and an elastic element. The elastic element is disposed between the pressure plate and the rotating seat. The elastic element is capable of elastic deformation along the first direction. The pressure plate abuts against the elastic clamping body. The pressure plate is configured such that: when the pressure plate is subjected to the elastic force of the elastic element and moves away from the rotating seat, the pressure plate is subjected to the driving force of the elastic element and abuts against the elastic clamping body to shrink the first clamping cavity; when the pressure plate is subjected to external pressure and moves toward the rotating seat, the pressure plate is subjected to external force and moves away from the elastic clamping body, and the elastic clamping body recovers at least partially its deformation.

3. The clamping device according to claim 2, characterized in that: The clamping force holding assembly further includes a holding drive plate and a holding drive source. The holding drive source is tractively connected to the holding drive plate and can drive the holding drive plate to move along the first direction. The holding drive plate is located on the side of the pressure plate away from the rotating seat and can abut against the pressure plate and move toward the rotating seat.

4. The clamping device according to claim 1, characterized in that: The first clamping assembly further includes a rotation drive component, which is tractively connected to the rotating base to drive the rotating base to rotate.

5. The clamping device according to claim 1, characterized in that: The second clamping assembly includes at least three auxiliary fixing wheels, all of which together form a second clamping cavity for clamping the other end of the tubular body. The outer peripheral surface of each auxiliary fixing wheel is used to rotatably abut against the outer peripheral surface of the tubular body, and the auxiliary fixing wheel is rotatable relative to the tubular body.

6. The clamping device according to claim 5, characterized in that: The clamping device further includes an adjustment component connected to the auxiliary fixing wheel, which is used to adjust the expansion or contraction of the second clamping cavity.

7. The clamping device according to claim 6, characterized in that: The adjustment assembly includes at least three telescopic members, each having a fixed part and a telescopic part. The telescopic part is throttle-connected to the fixed part and is capable of moving radially relative to the fixed part along the auxiliary fixed wheel. Each telescopic part is connected to one of the auxiliary fixed wheels.

8. The clamping device according to claim 6, characterized in that: The second clamping assembly further includes a length adjusting member, which is arranged along the first direction and connected to the auxiliary fixing wheel. The length adjusting member can extend or shorten along the first direction.

9. The clamping device according to claim 1, characterized in that: The clamping device includes a rotating base and an elastic clamping body disposed on the rotating base. The elastic clamping body has a first clamping cavity for clamping the bottom end of the tubular body. The rotating base has a liquid outlet channel, which is connected to the first clamping cavity.

10. A polishing device, characterized in that, include: frame; The clamping device according to any one of claims 1 to 9 is connected to the frame.

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