A clamping device and a grinding machine

Abstract

The present invention discloses a clamping device and a grinding machine having the aforementioned clamping device. The clamping device includes: a grinding mechanism having a base and a translation base slidably connected to the base, the translation base being provided with a grinding member; a first clamping mechanism having a first clamping member and a second clamping member, the first clamping member being fixed to the base and the second clamping member being fixed to the translation base; wherein, one of the first clamping member and the second clamping member is provided with a first pressing member and a compression air cavity for driving the first pressing member to press, and the first pressing member abuts and clamps the other of the first clamping member and the second clamping member. The clamping device and the grinding machine of the present invention can reduce vibration and improve grinding quality.

Description

Technical Field

[0001] The present invention relates to the structure of a grinding machine, and particularly to a clamping device and a grinding machine. Background Art

[0002] In order to improve the surface quality and dimensional accuracy of products, grinding machines are mostly required.

[0003] Structurally, a grinding machine has a base and a translation base. Among them, a motor and a screw are provided on the base, and a nut is provided on the translation base, and the nut is sleeved on the screw.

[0004] During use, the motor drives the screw to rotate, and the screw rotates relative to the nut, and then drives the translation base to move.

[0005] At the same time, a grinding disk is provided on the translation base, and the grinding disk grinds the product.

[0006] However, when the product ground by the grinding disk is larger, the grinding force is also greater, causing the translation base to vibrate and reducing the grinding quality. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a clamping device that can reduce vibration and improve grinding quality.

[0008] The present invention also provides a grinding machine having the above clamping device.

[0009] A clamping device according to an embodiment of the first aspect of the present invention includes: a grinding mechanism having a base and a translation base slidably connected to the base, and a grinding member is provided on the translation base; a first clamping mechanism having a first clamping member and a second clamping member, the first clamping member is fixed to the base, and the second clamping member is fixed to the translation base; wherein, one of the first clamping member and the second clamping member is provided with a first pressing member and a compressed air chamber for driving the first pressing member to press, and the first pressing member abuts and clamps against the other of the first clamping member and the second clamping member.

[0010] A clamping device according to an embodiment of the present invention has at least the following beneficial effects:

[0011] 1. By setting the first pressing member, the first pressing member is squeezed against the first clamping member or the second clamping member. Therefore, when the translation base is about to move, a frictional force is generated between the first pressing member and the first clamping member or the second clamping member. On the one hand, it can hinder the movement of the translation base. In particular, it can counteract the grinding force, reduce vibration, and ensure the grinding quality. On the other hand, it is equivalent to applying damping between the translation base and the base, preventing the translation base from getting stuck relative to the base, and making the movement of the translation base stable and precise. In particular, it can compensate for the clearance between the screw and the nut, facilitating the precise adjustment of the translation base.

[0012] 2. By setting the compressed air cavity, thus, the compressed air is used to drive the movement of the first pressing member. The structure is simple and the number of components is small. Moreover, the compressed air can be sealed or provided externally, and the force can be maintained continuously and constantly, extending the service life.

[0013] 3. The air pressure of the compressed air cavity can be adjusted by common methods. Furthermore, the pressure and the corresponding frictional force can be accurately changed to meet the actual situations of various types of grinding machines, and it can be applicable to both small grinding machines and large grinding machines at the same time, having wide applicability.

[0014] According to some embodiments of the present invention, the first pressing member is provided with a first end face for abutting and pressing, and the first end face is provided with a first groove.

[0015] Advantageously, by setting the first groove, the first end face is approximated to a suction cup, enabling the first end face to closely abut and providing a large frictional force.

[0016] Moreover, by setting the first groove, it is also convenient to scrape and accommodate debris and coolant, avoiding jamming.

[0017] According to some embodiments of the present invention, a plurality of the first grooves are provided, the first grooves are annular grooves, and the plurality of the first grooves are concentrically arranged.

[0018] Advantageously, by setting a plurality of first grooves, the fitting ability can be enhanced, ensuring the continuous effectiveness of the first clamping mechanism.

[0019] By making the first grooves be annular grooves and the plurality of first grooves be concentrically arranged, the frictional forces generated by the first pressing member in multiple directions are consistent, and the first pressing member does not need to be installed in a specific direction, reducing the assembly difficulty.

[0020] According to some embodiments of the present invention, a first sealing ring is provided on the outer surface of the first pressing member, and the first sealing ring can cooperate to seal the compressed air cavity.

[0021] Advantageously, by providing a first sealing ring on the outer side of the first pressing member, the compressed air directly drives the first pressing member to be pressed, simplifying the structure, reducing the number of components, and enabling elastic contact of the first pressing member without causing complete jamming.

[0022] According to some embodiments of the present invention, it includes a first side wall provided with a mounting hole for accommodating the first pressing member and a mounting cover for covering the mounting hole, and the mounting cover and the mounting cover cooperate to form the compressed air cavity.

[0023] Advantageously, by providing the mounting hole, the first pressing member is limited, preventing the first pressing member from swaying during the pressing process.

[0024] And by providing the mounting cover, the compressed air cavity can be conveniently formed, reducing the manufacturing difficulty.

[0025] Moreover, by providing the mounting cover, the first pressing member can be disassembled and assembled using the mounting cover, which is convenient for disassembly, assembly, and maintenance.

[0026] According to some embodiments of the present invention, the first side wall is provided with a first air inlet passage connecting to an external air source, the mounting cover is provided with a second air inlet passage communicating with the first air inlet passage, and the second air inlet passage communicates with the compressed air cavity.

[0027] Advantageously, by providing the first air inlet passage on the first side wall and the second air inlet passage on the mounting cover, it is convenient for installation, avoiding the increase in pipe laying difficulty due to connecting the pipe to the mounting cover.

[0028] Moreover, by providing the second air inlet passage on the mounting cover, it can prevent the first pressing member from blocking the air inlet passage, avoiding clamping failure.

[0029] According to some embodiments of the present invention, two first pressing members are provided, and the two first pressing members clamp or expand relatively.

[0030] Advantageously, by providing two first pressing members, clamping or expanding can be performed, reducing the risk of loosening of the first clamping mechanism. At the same time, the clamping area is increased, the friction force is increased, and failure is prevented.

[0031] According to some embodiments of the present invention, two parallel guide rails are provided between the base and the translation seat, and the first clamping mechanism is located between the two guide rails.

[0032] Advantageously, by arranging the first clamping mechanism between the two guide rails, on the one hand, the space can be fully utilized, and on the other hand, the direction of the friction force is parallel to the guide rail, reducing the risk of eccentric wear.

[0033] According to some embodiments of the present invention, a screw and a nut sleeved outside the screw are provided between the base and the translation base. The screw and the nut cooperate to drive the translation base to move, and the first clamping mechanism is arranged in the axial direction of the screw.

[0034] Advantageously, the first pre-mechanism is arranged in the axial direction of the screw, occupying less space between the guide rail and the screw, and avoiding increasing the specifications of the grinding machine.

[0035] According to some embodiments of the present invention, a second clamping mechanism is further included. The second clamping mechanism is arranged on one side of the translation base. The second clamping mechanism has a second pressing member and a first bracket for mounting the second pressing member. The first bracket is fixed to the base, and the bottom of the second pressing member abuts against and presses the translation base.

[0036] Advantageously, by providing the second clamping mechanism, pressure is applied to the translation base from top to bottom, further limiting and clamping the translation base, reducing the vibration of the translation base, and ensuring the grinding quality.

[0037] A grinding machine according to an embodiment of the second aspect of the present invention includes a clamping device as described in any one of the above.

[0038] A clamping device and a grinding machine according to an embodiment of the present invention have at least the following beneficial effects: 1. By providing the first pressing member, the first pressing member is squeezed with the first clamping member or the second clamping member. Therefore, when the translation base is about to move, a frictional force is generated between the first pressing member and the first clamping member or the second clamping member. On the one hand, it can hinder the movement of the translation base, especially counteract the grinding force, reduce vibration, and ensure the grinding quality. On the other hand, it is equivalent to applying damping between the translation base and the base, preventing the translation base from getting stuck relative to the base, and making the movement of the translation base stable and precise. In particular, it can compensate for the clearance between the screw and the nut, facilitating precise adjustment of the translation base.

[0039] 2. By providing the compressed air chamber, the first pressing member is driven to move by using compressed air. The structure is simple and the number of components is small. Moreover, the compressed air can be sealed or externally provided, and the force can be maintained continuously and constantly, extending the service life.

[0040] 3. The air pressure in the compressed air chamber can be adjusted by common methods, and then the pressure and the corresponding frictional force can be accurately changed to meet the actual conditions of various types of grinding machines. It can be applied to both small grinding machines and large grinding machines, having wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0042] Figure 1 Schematic structural diagram of a grinding machine according to an embodiment of the present invention;

[0043] Figure 2 is Figure 1 Schematic structural diagram of the second clamping mechanism in the grinding machine;

[0044] Figure 3 is Figure 2 Assembly schematic diagram of the second clamping mechanism in;

[0045] Figure 4 is Figure 1 Schematic structural diagram of the grinding machine with the first clamping mechanism;

[0046] Figure 5 is Figure 4 Schematic structural diagram of the first clamping mechanism in;

[0047] Figure 6 is Figure 5 Sectional view of the first clamping mechanism;

[0048] Figure 7 is Figure 5 Assembly schematic diagram of the first clamping mechanism;

[0049] Figure 8 is Figure 7 Schematic structural diagram of the first pressing member and the mounting cover in.

[0050] Reference numerals: base 100, translation base 110, first clamping mechanism 120, first clamping member 130, second clamping member 140, first pressing member 150, compression air cavity 160, first end face 170, first groove 180, first sealing ring 190, first side wall 200, mounting hole 210, mounting cover 220, first air inlet passage 230, second air inlet passage 240, guide rail 250, screw 260, nut 270, second clamping mechanism 280, second pressing member 290. Detailed implementation manners

[0051] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the 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 drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0052] In the description of the present invention, it should be understood that regarding the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0053] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0054] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The following describes a clamping device and a grinding machine according to an embodiment of the present invention with reference to the drawings.

[0056] Refer to Figure 1 , conceptually, an embodiment of a grinding machine is provided.

[0057] Structurally, the grinding machine of this embodiment has a grinding mechanism, and the grinding mechanism includes a base 100 and two translation seats 110, thereby forming a horizontal double-sided grinding machine.

[0058] Among them, the base 100 forms the installation reference of the grinding machine; the sliding structure also involves the translation seat 110, and the translation seat 110 is used to install the grinding wheel of the grinding machine and the motor that drives the grinding wheel to rotate. A grinding member is provided on the translation seat 110, and the grinding member can be a grinding disc, a grinding wheel, etc.

[0059] Structurally, the translation seat 110 has a spindle box and a bottom plate. The spindle box is installed above the bottom plate. The spindle box installs the grinding wheel and the motor, and a sliding mating surface is provided at the bottom of the bottom plate to realize the sliding connection between the translation seat 110 and the base 100.

[0060] In some embodiments, two guide rails 250 can be provided between the bottom plate and the base 100. One guide rail 250 includes a slide rail connecting the base 100 and a slider connecting the translation seat 110, and the slide rail and the slider are slidably connected.

[0061] Two guide rails 250 are provided to avoid machining the guide rail 250 grooves on the base 100 and the bottom plate, reducing the machining difficulty and manufacturing cost.

[0062] However, the use of the guide rail 250 reduces the contact area between the base 100 and the bottom plate, reduces the frictional force, and exacerbates the vibration of the translation base 110, especially when the grinding machine has a large specification or the product to be ground is large.

[0063] For this reason, a clamping device is provided in this embodiment.

[0064] First of all, the clamping mechanism of this embodiment has a second clamping mechanism 280. The second clamping mechanism 280 is installed on the base 100. The second clamping mechanism 280 is located on the horizontal side of the translation base 110. The second clamping mechanism 280 has a second pressing member 290. The bottom of the second pressing member 290 abuts against the bottom plate of the translation base 110.

[0065] In summary, beneficially, first, by providing the second clamping mechanism 280, the second clamping mechanism 280 generates a downward pressure on the translation base 110, restricting and even preventing the swinging and upward movement of the translation base 110. Thus, the second clamping mechanism 280 and the base 100 cooperate to accurately limit and clamp the translation base 110, reduce the vibration of the translation base 110, make the translation base 110 move smoothly, and ensure the grinding quality.

[0066] Secondly, by providing the second clamping mechanism 280, the second clamping mechanism 280 generates a downward pressure on the translation base 110. Therefore, a frictional force is generated between the second clamping mechanism 280 and the translation base 110, which hinders the movement of the translation base 110. On the one hand, it can share the acting force of the product to be ground on the grinding wheel and the translation base 110, reducing the acting force on the lead screw and protecting the lead screw. On the other hand, when starting to move the translation base 110, the frictional force between the second clamping mechanism 280 and the translation base 110 can delay the movement of the translation base 110 to ensure the accurate movement of the translation base 110. When ending the movement of the translation base 110, the frictional force between the second clamping mechanism 280 and the translation base 110 can accelerate the stop of the translation base 110, thus reducing the impact of the translation base 110 on the lead screw.

[0067] In addition, due to the existence of the second clamping mechanism 280, the defect of the guide rail 250 in stability can be compensated. Thus, two guide rails 250 can be used to realize the sliding connection between the translation base 110 and the base 100, and finally, the manufacturing cost is reduced.

[0068] In some preferred embodiments, a first convex edge can be formed at the edge of the bottom plate, and the top of the first convex edge abuts against the second pressing member 290.

[0069] The first convex edge is directly formed by the edge of the bottom plate, and only appropriate heat treatment is required without further machining, reducing the machining amount and the machining difficulty.

[0070] More beneficially, by making the second clamping mechanism 280 have a second pressing member 290, the translation base 110 has a first convex edge. At the same time, the second pressing member 290 is located at the top of the first convex edge, and the second pressing member 290 is in up-and-down contact with the first convex part, making full use of the horizontal space of the translation base 110 without increasing the height of the grinding machine and improving the stability of the grinding machine.

[0071] Referring to Figure 1 、 Figure 2 and Figure 3 In some preferred embodiments, the second clamping mechanism 280 may include a first bracket. The first bracket includes a vertical plate connecting the base 100 and a horizontal plate connecting the top of the vertical plate, and the horizontal plate is provided with the second pressing member 290.

[0072] Beneficially, by providing the first bracket with a vertical plate and a horizontal plate, the vertical plate and the horizontal plate can be manufactured separately and then assembled, reducing the manufacturing difficulty. Moreover, the horizontal plate is used to install the second pressing member 290, which is convenient for disassembly and assembly and has a low maintenance cost.

[0073] In some preferred embodiments, a stepped portion may be provided at the bottom of the horizontal plate. The stepped portion has a first plane abutting against the vertical plate and a second plane located above the first convex edge, and the second plane is higher than the first plane.

[0074] The setting of the first plane and the second plane is convenient for machining and has a low manufacturing cost.

[0075] By making the second plane higher than the first plane, a gap is left between the second plane and the first convex edge, facilitating the abutment of the second pressing member 290 against the first convex edge.

[0076] In some preferred embodiments, the distance between the second plane and the first plane may be 0.2 mm.

[0077] Beneficially, by making the distance between the second plane and the first plane 0.2 mm, the requirement of setting a gap is satisfied, and the first convex edge is scraped to remove debris on the first convex edge, reducing the wear of the first convex edge and the second pressing member 290.

[0078] In some preferred embodiments, the horizontal plate may be provided with a limiting groove for accommodating the second pressing member 290.

[0079] Beneficial. By providing the limiting groove, the second pressing member 290 can be limited, so that when the translation base 110 moves, the second pressing member 290 is prevented from falling off the first bracket. Moreover, the fixation of the second pressing member 290 is simplified, and the structure is simple, compact and easy to implement.

[0080] In some preferred embodiments, the transverse plate can be provided with a support spring, and the bottom of the support spring abuts against the second pressing member 290, and the support spring drives the second pressing member 290 to press down.

[0081] Beneficial. By providing the support spring, the second pressing member 290 can press against the first convex edge. On the one hand, the wear of the second pressing member 290 can be offset. On the other hand, a relatively constant pressure can be provided to ensure stable friction.

[0082] In some preferred embodiments, the transverse plate can be provided with a limiting hole for accommodating the support spring.

[0083] Beneficial. By providing the limiting hole, the support spring can be limited to prevent the support spring from shifting, and the support spring can also be shielded to prevent the support spring from contacting debris and wearing.

[0084] In some preferred embodiments, the first bracket can be provided with a limiting pin that abuts against the top of the support spring.

[0085] Beneficial. By providing the limiting pin, basically, the support spring is limited to ensure the acting force of the support spring on the second pressing member 290; upgraded, the support spring can be installed from the position where the limiting pin is installed, which is convenient for assembly; advanced, by adjusting the limiting pin, the acting force of the support spring can be adjusted, so that the pressure of the second pressing member 290 on the first convex edge is changed, and the friction force meets the setting.

[0086] In some preferred embodiments, the first bracket can further include a cover plate, the cover plate covers the transverse plate, and the limiting pin is provided on the cover plate.

[0087] Beneficial. By providing the cover plate, the structure for installing the limiting pin is independently provided, which reduces the processing difficulty, and is convenient for disassembly and assembly, facilitating maintenance, and having a low maintenance cost.

[0088] At the same time, the support spring can be replaced by disassembling and assembling the cover plate, avoiding adjusting the limiting pin, avoiding the change of the friction force between the second pressing member 290 and the first convex edge, and reducing the use difficulty.

[0089] In some preferred embodiments, the cover plate can be provided with an installation hole 210 for installing the limiting pin, and the diameter of the installation hole 210 is smaller than the diameter of the limiting hole.

[0090] That is to say, even if the positioning pin falls off, the entity forming the mounting hole 210 can still limit the support spring to prevent the support spring from coming out.

[0091] In some preferred embodiments, the second pressing member 290 can be a copper gasket.

[0092] Advantageously, by making the second pressing member 290 a copper gasket, on the one hand, the wear-resistant property of copper can be utilized to increase the service life, and on the other hand, the energy absorption advantage of copper can be utilized for energy absorption and buffering to reduce the vibration of the translation seat 110.

[0093] In some preferred embodiments, the second pressing member 290 can be strip-shaped, and the length direction of the second pressing member 290 is arranged along the moving direction of the translation seat 110.

[0094] Advantageously, by making the second pressing member 290 strip-shaped and arranging the length direction of the second pressing member 290 along the moving direction of the translation seat 110, the contact area can be increased, the pressure can be reduced to meet the friction requirement, and at the same time, the wear can be slowed down without increasing the horizontal dimension of the grinding machine, making the structure of the grinding machine compact.

[0095] In some preferred embodiments, the two ends of the length direction of the second pressing member 290 can be round surfaces.

[0096] Advantageously, by making the two ends of the length direction of the second pressing member 290 round surfaces, the second pressing member 290 can smoothly pass through other positions of the first convex edge, and at the same time, it is convenient to scrape off the fine debris on the first convex edge to reduce wear.

[0097] Refer to Figure 4 and Figure 5 , secondly, the clamping device of this embodiment further has a first clamping mechanism 120.

[0098] Among them, the first clamping mechanism 120 has a first clamping member 130 and a second clamping member 140. The first clamping member 130 is fixed to the base 100, and the second clamping member 140 is fixed to the translation seat 110.

[0099] Among them, one of the first clamping member 130 and the second clamping member 140 is provided with a first pressing member 150 and a compressed air cavity 160 for driving the first pressing member 150 to press, and the first pressing member 150 abuts against and clamps the other of the first clamping member 130 and the second clamping member 140.

[0100] In summary, under the action of the first clamping mechanism 120, the following effects are achieved:

[0101] 1. By setting the first pressing member 150, the first pressing member 150 is squeezed against the first clamping member 130 or the second clamping member 140. Thus, when the translation base 110 is about to move, a frictional force is generated between the first pressing member 150 and the first clamping member 130 or the second clamping member 140. On the one hand, it can hinder the movement of the translation base 110. In particular, it can counteract the grinding force, reduce vibration, and ensure the grinding quality. On the other hand, it is equivalent to applying damping between the translation base 110 and the base 100, preventing the translation base 110 from getting stuck relative to the base 100, and making the movement of the translation base 110 stable and precise. In particular, it can compensate for the clearance between the screw 260 and the nut 270, facilitating the precise adjustment of the translation base 110.

[0102] 2. By setting the compressed air chamber 160, thereby using compressed air to drive the movement of the first pressing member 150, the structure is simple, with fewer components. Moreover, the compressed air can be sealed or externally provided, capable of maintaining the continuous and constant action of the force and extending the service life.

[0103] 3. The air pressure in the compressed air chamber 160 can be adjusted by common means. Furthermore, it can precisely change the pressure and the corresponding frictional force to meet the actual situations of various types of grinders, and can be applicable to both small and large grinders simultaneously, having wide applicability.

[0104] In some preferred embodiments, the first clamping mechanism 120 can be located between the two guide rails 250.

[0105] It can be understood that by arranging the first clamping mechanism 120 between the two guide rails 250, on the one hand, the space can be fully utilized, and on the other hand, the direction of the frictional force is parallel to the guide rails 250, reducing the risk of uneven grinding.

[0106] In some preferred embodiments, a screw 260 and a nut 270 sleeved outside the screw 260 can be provided between the base 100 and the translation base 110. The screw 260 and the nut 270 cooperate to drive the movement of the translation base 110, and the first clamping mechanism 120 is arranged in the axial direction of the screw 260.

[0107] It can be obtained that by arranging the first front mechanism in the axial direction of the screw 260, the space between the guide rails 250 and the screw 260 is less occupied, avoiding increasing the specifications of the grinder.

[0108] In this embodiment, the first clamping member 130 is used to set the first pressing member 150 for discussion, but it is not an absolute limitation.

[0109] Refer to Figure 5 、 Figure 6 and Figure 7, the cross-section of the first clamping member 130 is U-shaped. The first clamping member 130 has a receiving groove and a first side wall 200 that forms the receiving groove. Correspondingly, the cross-section of the second clamping member 140 is T-shaped, and the second clamping member 140 has a plate portion that extends into the receiving groove.

[0110] Therefore, both the clamping requirements are met and the installation and fixation are convenient.

[0111] In this embodiment, two first pressing members 150 can be provided, and the two first pressing members 150 clamp the plate portion of the second clamping member 140 relatively.

[0112] Advantageously, by providing two first pressing members 150, clamping or stretching can be performed, reducing the risk of loosening of the first clamping mechanism 120. At the same time, the clamping area is increased, the friction force is increased, and failure is prevented.

[0113] Of course, if the first pressing member 150 is provided on the second clamping member 140, an external support clamping of the first side wall 200 is formed.

[0114] In some preferred embodiments, the first side wall 200 can be provided with a mounting hole 210 for receiving the first pressing member 150 and a mounting cover 220 for covering the mounting hole 210. The mounting cover 220 and the mounting cover 220 cooperate to form a compressed air cavity 160.

[0115] Advantageously, by providing the mounting hole 210, the first pressing member 150 is limited, preventing the first pressing member 150 from deflecting during the pressing process.

[0116] Moreover, by providing the mounting cover 220, the compressed air cavity 160 can be conveniently formed, reducing the manufacturing difficulty.

[0117] Moreover, by providing the mounting cover 220, the first pressing member 150 can also be disassembled and assembled by using the mounting cover 220, and the disassembly, assembly and maintenance are convenient.

[0118] In some preferred embodiments, the first side wall 200 can be provided with a first air inlet channel 230, the first air inlet channel 230 is connected to an external air source, the mounting cover 220 is provided with a second air inlet channel 240 communicating with the first air inlet channel 230, and the second air inlet channel 240 communicates with the compressed air cavity 160.

[0119] Advantageously, by providing the first air inlet channel 230 on the first side wall 200 and the second air inlet channel 240 on the mounting cover 220, the installation is convenient, and the difficulty of pipeline connection to the mounting cover 220 is avoided.

[0120] Moreover, by providing the second air inlet channel 240 on the mounting cover 220, the first pressing member 150 can be prevented from blocking the air inlet channel, avoiding clamping failure.

[0121] Refer toFigure 8 In some preferred embodiments, the first pressing member 150 may be provided with a first end face 170 for abutting and pressing, and the first end face 170 is provided with a first groove 180.

[0122] Advantageously, by providing the first groove 180, the first end face 170 is approximated to a suction cup, so that the first end face 170 can closely abut, providing a large frictional force. Moreover, by providing the first groove 180, it is also convenient to scrape and accommodate debris and coolant, avoiding jamming.

[0123] In some preferred embodiments, a plurality of first grooves 180 may be provided in the first groove 180. The first grooves 180 are annular grooves, and the plurality of first grooves 180 are concentrically arranged.

[0124] Advantageously, by providing a plurality of first grooves 180, the fitting ability can be enhanced, ensuring the continuous effectiveness of the first clamping mechanism 120.

[0125] By making the first groove 180 an annular groove and the plurality of first grooves 180 being concentrically arranged, the frictional forces generated by the first pressing member 150 in multiple directions are consistent, and it is not necessary to install the first pressing member 150 in a specific direction, reducing the assembly difficulty.

[0126] In some preferred embodiments, a first sealing ring 190 may be provided on the outer surface of the first pressing member 150, and the first sealing ring 190 can cooperate to seal the compressed air cavity 160.

[0127] Advantageously, by providing the first sealing ring 190 on the outside of the first pressing member 150, thus, the compressed air directly drives the first pressing member 150 to press, the structure is simplified, there are fewer components, and moreover, the elastic contact of the first pressing member 150 is achieved, and complete jamming will not be caused.

[0128] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0129] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A clamping device, characterized in that, Comprising: A grinding mechanism, having a base and a translation seat slidably connected to the base, wherein the translation seat is provided with a grinding member; A first clamping mechanism, having a first clamping member and a second clamping member, wherein the first clamping member is fixed to the base and the second clamping member is fixed to the translation seat; Wherein, one of the first clamping member and the second clamping member is provided with a first pressing member and a compressed air cavity for driving the first pressing member to press, the first pressing member abuts and clamps against the other of the first clamping member and the second clamping member, the first pressing member is provided with a first end face for abutting and pressing, and the first end face is provided with a first groove, the first groove is an annular groove, and a plurality of the first grooves are concentrically arranged; A second clamping mechanism, the second clamping mechanism is arranged on one side of the translation seat, the second clamping mechanism has a second pressing member and a first bracket for mounting the second pressing member, the first bracket is fixed to the base, and the bottom of the second pressing member abuts and presses against the translation seat.

2. The clamping device according to claim 1, characterized in that, A first sealing ring is arranged on the outer surface of the first pressing member, and the first sealing ring can cooperate to seal the compressed air cavity.

3. The clamping device according to claim 1, wherein, Comprising a first side wall, the first side wall is provided with a mounting hole for accommodating the first pressing member and a mounting cover for covering the mounting hole, and the mounting hole and the mounting cover cooperate to form the compressed air cavity.

4. The clamping device according to claim 3, characterized in that, The first side wall is provided with a first air inlet channel, the first air inlet channel is connected to an external air source, the mounting cover is provided with a second air inlet channel communicating with the first air inlet channel, and the second air inlet channel communicates with the compressed air cavity.

5. A clamping device according to claim 1, characterized in that, There are two first pressing members, and the two first pressing members clamp or spread tightly relative to each other.

6. A clamping device according to claim 1, characterized in that Two parallel guide rails are arranged between the base and the translation seat, and the first clamping mechanism is located between the two guide rails.

7. A clamping device according to claim 1, characterized in that, A screw and a nut sleeved outside the screw are arranged between the base and the translation seat, the screw and the nut cooperate to drive the translation seat to move, and the first clamping mechanism is arranged in the axial direction of the screw.

8. A grinding machine, characterized in that, Comprising a clamping device according to any one of claims 1 to 7.

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