Aluminum oxide ceramic ring clamping mechanical claw

Abstract

The utility model is applicable to the technical field of clamping devices, and provides an aluminum oxide ceramic ring clamping mechanical gripper which comprises a shell, the bottom of the shell is movably connected with a clamping jaw device, the clamping jaw device comprises an outer clamping mechanism arranged in the shell and an inner clamping mechanism arranged on the inner side of the outer clamping mechanism and movably connected with the shell, and the outer clamping mechanism is connected with the inner clamping mechanism. The outer clamping mechanism and the inner clamping mechanism are matched to clamp the ceramic ring on the inner side and the outer side of the ceramic ring, and the outer clamping mechanism and the inner clamping mechanism are arranged at the bottom of the shell, so that the inner arc surface and the outer arc surface of the ceramic ring can be synchronously clamped when the ceramic ring is clamped; the problem that the ceramic rings are damaged and cracked due to uneven stress is avoided, and meanwhile, due to the fact that the outer clamping mechanism and the inner clamping mechanism are independently controlled through the two different driving assemblies, the positions of the outer clamping mechanism and the inner clamping mechanism can be adjusted according to the different sizes of the ceramic rings.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping devices, and in particular relates to an alumina ceramic ring clamping mechanical claw. Background Art

[0002] Alumina ceramic rings are ceramic sealing rings primarily composed of aluminum oxide. Also known as ceramic seals or gaskets, alumina ceramic rings offer advantages such as high hardness, excellent wear resistance, corrosion and high temperature resistance, good self-lubrication, and resistance to scaling. Alumina ceramic accessories offer high hardness, high strength, low expansion coefficient, and are also insulative, wear-resistant, and corrosion-resistant. Once prepared, alumina ceramic rings require a clamping device to hold them and transport them to their designated location.

[0003] The Chinese invention patent with publication number CN116277091A is an alumina ceramic ring clamping mechanical claw, which drives the rotating shaft to rotate through the driving structure, and the rotation of the rotating shaft drives the variable diameter disk to rotate. The rotation of the variable diameter disk pushes the sliding rod to move outward, and then the outward movement of the sliding rod drives the adjusting nut and the rotating ring to move outward, and then the rotating ring drives the outer tension spring to pull the inner sliding seat and the support block to move outward, thereby supporting the inner surface of the alumina ceramic ring. At the same time, the rotating shaft drives the mixing block to rotate. When the rotating shaft drives the mixing block to contact the limit block, the limit block drives the rotating roller to rotate, and the rotating roller rotates to reel in the pull rope, and then the pull rope pulls the outer sliding seat inward, thereby driving the outer clamping block to clamp the alumina ceramic ring. The position of the rotating ring can be adjusted by screwing the adjusting nut, and then the length of the external tension spring can be adjusted. The external tension spring is used to prevent the inner support block from rigidly squeezing the inner surface of the alumina ceramic ring.

[0004] However, the above invention patent has the following technical problems in actual use:

[0005] 1. The above-mentioned device clamps the inner and outer sides of the ceramic ring at the same time by setting an outer clamping block and an inner clamping block, thereby improving the stability during clamping. However, the inner ring clamping and the outer ring clamping are controlled by the same driving source, which will cause the outer ring to shrink inward and the inner ring to expand outward when the driving source is working. As a result, the above-mentioned device can only clamp ceramic rings of a single size and cannot meet the requirements of clamping ceramic rings of other sizes, which limits the practical use of the above-mentioned device.

[0006] 2. In addition, the clamping block of the above device is large in size, resulting in a large contact area between it and the ceramic ring, which may cause indentations or cracks on the outside of the ceramic ring, affecting the product quality of the ceramic ring. Utility Model Content

[0007] The present invention provides an alumina ceramic ring clamping mechanical claw, which aims to solve the problem mentioned in the above background technology that the above device controls the synchronous movement of the inner clamping block and the outer clamping block through the same driving source, resulting in the above device being able to only clamp ceramic rings of a single size specification and unable to clamp ceramic rings of other sizes, thereby limiting the actual use of the above device. In addition, the contact area between the clamping block and the ceramic ring of the above device is large, which may cause indentations and cracks on the ceramic ring, affecting the product quality of the ceramic ring.

[0008] The present invention is implemented as follows: an alumina ceramic ring clamping mechanical claw comprises: a shell, a clamping claw device movably connected to the bottom of which, wherein the clamping claw device comprises: an outer clamping mechanism arranged in the shell, and an inner clamping mechanism arranged on the inner side of the outer clamping mechanism and movably connected to the shell, the outer clamping mechanism and the inner clamping mechanism cooperate to clamp the ceramic ring on the inner and outer sides thereof, the outer clamping mechanism comprises: a first driving component fixedly mounted in the shell, and a first clamping component movably connected to the first driving component is further arranged in the shell, the inner clamping mechanism comprises: a second driving component fixedly mounted on the bottom of the shell, the A second clamping assembly corresponding to the first clamping assembly is provided on the outside of the second drive assembly; in this solution, the device arranges an outer clamping mechanism and an inner clamping mechanism at the bottom of the shell, so that when clamping the ceramic ring, its inner arc surface and outer arc surface can be clamped synchronously, avoiding the problem of ceramic ring damage and cracking due to uneven force. At the same time, since the outer clamping mechanism and the inner clamping mechanism are separately controlled by two sets of different drive components, the positions of the outer clamping mechanism and the inner clamping mechanism can be adjusted according to the different sizes of the ceramic ring, so that it can be adjusted according to the size of the ceramic ring, which greatly increases the adaptability of the device and expands the use scenarios of the device.

[0009] In addition, the device uses smaller inner and outer clamping blocks for clamping, which can reduce the contact area with the surface of the ceramic ring, thereby reducing wear on the surface of the ceramic ring and reducing damage to the ceramic ring.

[0010] Preferably, the first driving component includes: a motor fixedly mounted on the top wall of the shell, an output end of which extends to the inner side of the shell and is fixedly connected to a first bevel gear, a plurality of rotating seats are fixedly connected at equal angles on the inner top wall of the shell outside the first bevel gear, each of the rotating seats is rotatably connected to a rotating shaft, and the end of each rotating shaft away from the first bevel gear is rotatably connected to the inner wall of the shell, and the end of each rotating shaft close to the first bevel gear is fixedly connected to a second bevel gear threadedly engaged with it; in this scheme, when the output end of the motor rotates, it will drive the first bevel gear to rotate, and the second bevel gear threaded with the first bevel gear will rotate synchronously and control the rotating shaft connected to it to rotate under the support of the rotating seat, and the rotation of multiple synchronously rotating rotating shafts is used to control multiple first clamping components to approach or move away from the center of the shell (inner clamping mechanism), thereby clamping the outer ring of the ceramic ring.

[0011] Preferably, the first clamping assembly includes: sliding grooves corresponding to the plurality of rotating shafts are provided on the bottom wall of the shell, a sliding rod is upright and slidingly arranged in each sliding groove, a threaded portion is provided on the outer wall of the rotating shaft, and a screw sleeve is screwed on the outer side of the threaded portion, the top end of the sliding rod is fixedly connected to the screw sleeve, and an outer clamping block is fixedly installed on the bottom end; in this scheme, when the rotating shaft rotates, the threaded portion on its outer wall will drive the outer screw sleeve to move horizontally, and the screw sleeve drives the sliding rod to move horizontally in the sliding groove, thereby driving the outer clamping block to approach or move away from the center of the shell (inner clamping mechanism), thereby clamping the outer ring of the ceramic ring.

[0012] It should be noted that the device has four sliding grooves at equal angles on the outside of the inner clamping mechanism, and the adjacent sliding grooves are vertically distributed, so as to ensure stability when clamping the outside of the ceramic ring.

[0013] Preferably, the second driving component includes: a through hole opened on the inner bottom wall of the shell, a connecting seat is fixedly installed in the through hole, an air pump is fixedly installed on the top wall of the connecting seat, and a baffle is horizontally fixedly connected to the inner side of the connecting seat, an air bag is provided below the baffle, the air pump is connected to the air bag through an air supply pipe, an exhaust pipe connected to the air bag is also provided on the connecting seat, and a control valve is fixedly installed on the exhaust pipe; in this scheme, when the air pump supplies air to the air bag through the air supply pipe, the air bag inflates and pushes the movable rod to move horizontally in the direction away from the connecting seat, and the movable rod drives the inner clamping block to move synchronously and move toward the outer clamping block, thereby achieving clamping and fixation of the inner ring of the ceramic ring.

[0014] It should be noted that during the air pump's air delivery process, the control valve is in a closed state, and when the air pump stops delivering air and the ceramic ring is delivered to the specified position, the control valve opens, the air in the airbag is squeezed into the exhaust pipe and discharged, the airbag shrinks, and the movable rod pulls the inner clamping block away from the ceramic ring to release it.

[0015] Preferably, the second clamping assembly includes: a plurality of slots opened at equal angles on the outer wall of the connecting seat, a telescopic adjustment member is fixedly installed in each slot, a movable rod is movably connected to the inner side of each telescopic adjustment member, and an inner clamping block is fixedly installed on the end of each movable rod away from the connecting seat; in this scheme, when the airbag is inflated, the airbag pushes the movable rod away from the connecting seat, and the telescopic adjustment member is in a compressed state. When the air pump stops supplying air, the control valve opens, the telescopic adjustment member gradually resets, and pushes the airbag to shrink, so that the air in the airbag is discharged along the exhaust pipe.

[0016] Preferably, the telescopic adjustment part includes: a movable sleeve fixedly installed in the slot hole, the movable rod passes through the movable sleeve and one end extends into the connecting seat, the movable rod is located on the outer wall of the inner side of the movable sleeve and is fixed with a limit block, and the outer sleeve of the movable rod between the side wall of the connecting seat and the inner wall of the movable sleeve where the limit block is away from the limit block is provided with a reset spring; in this scheme, when the movable rod moves in the direction away from the connecting seat, the limit block moves synchronously with the movable rod and pressurizes the reset spring, conversely, when the airbag stops inflating and the control valve opens, the reset spring elastically resets, pushing the limit block and the movable rod to move toward the connecting seat, so that the inner clamping block disengages from the ceramic ring and releases it.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the alumina ceramic ring clamping mechanical claw of the present invention has the following advantages:

[0018] 1. This device sets an outer clamping mechanism and an inner clamping mechanism at the bottom of the shell, so that when clamping the ceramic ring, the inner arc surface and the outer arc surface can be clamped synchronously, avoiding the problem of ceramic ring damage and cracking due to uneven force. At the same time, since the outer clamping mechanism and the inner clamping mechanism are separately controlled by two sets of different drive components, the positions of the outer clamping mechanism and the inner clamping mechanism can be adjusted according to the different sizes of the ceramic ring, so that it can be adjusted according to the size of the ceramic ring, which greatly increases the adaptability of the device and expands the use scenarios of the device.

[0019] 2. This device uses smaller inner and outer clamping blocks for clamping, which can reduce the contact area with the surface of the ceramic ring, thereby reducing the wear on the surface of the ceramic ring and reducing damage to the ceramic ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional view of the utility model;

[0021] Figure 2 For this utility model Figure 1 A magnified view of the structure at center A;

[0022] Figure 3 This is a schematic diagram of the inner clamping mechanism of the present invention;

[0023] Figure 4 For this utility model Figure 3 A magnified view of the structure at B in the middle;

[0024] In the picture:

[0025] 1. Shell;

[0026] 2. External clamping mechanism; 21. First drive assembly; 211. Motor; 212. First bevel gear; 213. Rotating seat; 214. Rotating shaft; 215. Second bevel gear; 22. First clamping assembly; 221. Sliding groove; 222. Sliding rod; 223. Threaded portion; 224. Screw sleeve; 225. External clamping block;

[0027] 3. Inner clamping mechanism; 31. Second drive assembly; 311. Connecting seat; 312. Air pump; 313. Baffle; 314. Airbag; 315. Air supply pipe; 316. Exhaust pipe; 317. Control valve; 32. Second clamping assembly; 321. Movable rod; 322. Inner clamping block; 323. Movable sleeve; 324. Limit block; 325. Return spring. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] See also Figure 1-4 The utility model provides a technical solution: an alumina ceramic ring clamping mechanical claw, comprising: a shell 1, a clamping device movably connected to the bottom of which, wherein the clamping device comprises: an outer clamping mechanism 2 arranged in the shell 1, and an inner clamping mechanism 3 arranged on the inner side of the outer clamping mechanism 2 and movably connected to the shell 1, the outer clamping mechanism 2 and the inner clamping mechanism 3 cooperate to clamp the ceramic ring on the inner and outer sides thereof, the outer clamping mechanism 2 comprises: a first driving component 21 fixedly mounted in the shell 1, and a first clamping component 22 movably connected to the first driving component 21 is further arranged in the shell 1, the inner clamping mechanism 3 comprises: a second driving component 31 fixedly mounted on the bottom of the shell 1, and a second clamping component 32 corresponding to the first clamping component 22 is arranged on the outer side of the second driving component 31.

[0034] Specifically, the device is also provided with a controller on the shell 1, and a PLC control module is provided in the controller, wherein the motor 211, the air pump 312 and the control valve 317 are respectively electrically connected to the PLC control module, thereby ensuring precise control of the device during operation and facilitating manual operation.

[0035] The first drive assembly 21 includes: a motor 211 fixedly mounted on the top wall of the shell 1, an output end of which extends to the inner side of the shell 1 and is fixedly connected to a first bevel gear 212, a plurality of rotating seats 213 are fixedly connected at equal angles on the inner top wall of the shell 1 outside the first bevel gear 212, each rotating seat 213 is rotatably connected to a rotating shaft 214, and the end of each rotating shaft 214 away from the first bevel gear 212 is rotatably connected to the inner wall of the shell 1, and the end of each rotating shaft 214 close to the first bevel gear 212 is fixedly connected to a second bevel gear 215 threadedly engaged with it.

[0036] The first clamping assembly 22 includes: sliding grooves 221 are opened on the bottom wall of the shell 1 corresponding to multiple rotating shafts 214, and a sliding rod 222 is vertically slidingly arranged in each sliding groove 221. A threaded portion 223 is provided on the outer wall of the rotating shaft 214, and a screw sleeve 224 is screwed on the outer side of the threaded portion 223. The top end of the sliding rod 222 is fixedly connected to the screw sleeve 224, and an external clamping block 225 is fixedly installed on the bottom end.

[0037] The second driving component 31 includes: a through hole opened on the inner bottom wall of the shell 1, a connecting seat 311 is fixedly installed in the through hole, an air pump 312 is fixedly installed on the top wall of the connecting seat 311, and a baffle 313 is horizontally fixed on the inner side of the connecting seat 311, an air bag 314 is provided below the baffle 313, the air pump 312 is connected to the air bag 314 through an air supply pipe 315, and an exhaust pipe 316 connected to the air bag 314 is also provided on the connecting seat 311, and a control valve 317 is fixedly installed on the exhaust pipe 316.

[0038] Furthermore, the second clamping assembly 32 includes: a plurality of slots opened at equal angles on the outer wall of the connecting seat 311, a telescopic adjustment member is fixedly installed in each slot, a movable rod 321 is movably connected to the inner side of each telescopic adjustment member, and an inner clamping block 322 is fixedly installed on the end of each movable rod 321 away from the connecting seat 311.

[0039] Specifically, the device fixes the connecting rubber pads on the side wall of the outer clamping block 225 close to the connecting seat 311 and on the side wall of the inner clamping block 322 away from the connecting seat 311 by bonding or bolting, thereby effectively reducing the hard contact between the outer clamping block 225, the inner clamping block 322 and the inner and outer surfaces of the ceramic ring, avoiding damage to the ceramic ring.

[0040] Furthermore, the telescopic adjustment member includes: a movable sleeve 323 fixedly installed in the slot hole, a movable rod 321 passing through the movable sleeve 323 and one end extending into the connecting seat 311, the movable rod 321 is located on the outer wall on the inner side of the movable sleeve 323 and is fixed with a limiting block 324, and the outer sleeve of the movable rod 321 between the limiting block 324 away from the side wall of the connecting seat 311 and the inner wall of the movable sleeve 323 is provided with a reset spring 325.

[0041] Specifically, the device is further provided with a block on the end of the movable rod 321 close to the connecting seat 311. The block can avoid contact with the airbag 314, so that when the airbag 314 inflates, the driving force generated by its expansion can be accurately transmitted to the movable rod 321 through the block, thereby ensuring that the movable rod 321 accurately performs horizontal displacement.

[0042] The working principle and use process of this utility model:

[0043] When the motor 211 is working, its output end drives the multiple second bevel gears 215 to rotate through the first bevel gear 212, and controls the multiple rotating shafts 214 to rotate synchronously through the second bevel gears 215. The threaded portion 223 on the outer side of each rotating shaft 214 drives the screw sleeve 224 to move horizontally. The screw sleeve 224 drives the sliding rod 222 to translate along the sliding groove 221 and drives the outer clamping block 225 to approach the outer ring of the ceramic ring.

[0044] The air pump 312 supplies air to the airbag 314 through the air supply pipe 315. The airbag 314 expands and pushes the movable rod 321 away from the connecting seat 311. When the movable rod 321 pushes the inner clamping block 322 toward the inner ring of the ceramic ring and contacts the inner ring of the ceramic ring, it cooperates with the outer clamping block 225 to clamp and fix the ceramic ring.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An alumina ceramic ring clamping mechanical claw, characterized by: include: A housing (1) having a clamping device movably connected to its bottom; Wherein, the above-mentioned clamping device comprises: An outer clamping mechanism (2) is provided in the housing (1), and an inner clamping mechanism (3) is provided on the inner side of the outer clamping mechanism (2) and is movably connected to the housing (1), wherein the outer clamping mechanism (2) and the inner clamping mechanism (3) cooperate to clamp the ceramic ring on the inner and outer sides thereof; The outer clamping mechanism (2) has: A first drive assembly (21) is fixedly mounted in the housing (1), and a first clamping assembly (22) movably connected to the first drive assembly (21) is also provided in the housing (1); The inner clamping mechanism (3) has: A second driving assembly (31) is fixedly mounted on the bottom of the housing (1), and a second clamping assembly (32) corresponding to the first clamping assembly (22) is provided on the outside of the second driving assembly (31).

2. The alumina ceramic ring clamping mechanical claw according to claim 1, characterized in that: The first drive assembly (21) comprises: a motor (211) fixedly mounted on the top wall of the housing (1), the output end of which extends to the inside of the housing (1) and is fixedly connected to a first bevel gear (212); A plurality of rotating seats (213) are fixedly connected at equal angles to the inner top wall of the housing (1) outside the first bevel gear (212), and a rotating shaft (214) is rotatably connected to each rotating seat (213). The end of each rotating shaft (214) away from the first bevel gear (212) is rotatably connected to the inner side wall of the housing (1), and the end of each rotating shaft (214) close to the first bevel gear (212) is fixedly connected to a second bevel gear (215) threadedly engaged with the first bevel gear (212).

3. The alumina ceramic ring clamping mechanical claw according to claim 2, characterized in that: The first clamping assembly (22) comprises: The bottom wall of the housing (1) is provided with sliding grooves (221) corresponding to the plurality of rotating shafts (214), and a sliding rod (222) is vertically provided in each of the sliding grooves (221). A threaded portion (223) is provided on the outer wall of the rotating shaft (214), and a screw sleeve (224) is screwed on the outer side of the threaded portion (223). The top end of the sliding rod (222) is fixedly connected to the screw sleeve (224), and an external clamping block (225) is fixedly installed on the bottom end.

4. The alumina ceramic ring clamping mechanical claw according to claim 1, characterized in that: The second drive assembly (31) comprises: A through hole is provided on the inner bottom wall of the housing (1), a connecting seat (311) is fixedly installed in the through hole, an air pump (312) is fixedly installed on the top wall of the connecting seat (311), and a baffle (313) is fixedly connected to the inner side of the connecting seat (311), an air bag (314) is provided below the baffle (313), and the air pump (312) is connected to the air bag (314) through an air supply pipe (315); The connecting seat (311) is also provided with an exhaust pipe (316) communicating with the air bag (314), and a control valve (317) is fixedly mounted on the exhaust pipe (316).

5. The alumina ceramic ring clamping mechanical claw according to claim 4, characterized in that: The second clamping assembly (32) comprises: A plurality of slots are provided at equal angles on the outer wall of the connecting seat (311), a telescopic adjustment member is fixedly installed in each slot, a movable rod (321) is movably connected to the inner side of each telescopic adjustment member, and an inner clamping block (322) is fixedly installed on the end of each movable rod (321) away from the connecting seat (311).

6. The alumina ceramic ring clamping mechanical claw according to claim 5, characterized in that: The telescopic adjustment member includes: A movable sleeve (323) is fixedly installed in the slot hole, the movable rod (321) passes through the movable sleeve (323) and one end extends into the connecting seat (311), the movable rod (321) is fixedly connected to a limiting block (324) on the outer wall of the inner side of the movable sleeve (323), and the outer sleeve of the movable rod (321) between the side wall of the connecting seat (311) and the inner wall of the movable sleeve (323) is provided with a return spring (325).

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