Ball valve clamping device

Abstract

The utility model provides a ball valve clamping device, and belongs to the technical field of ball valve machining and clamping. Comprising a base frame, adjusting mechanisms are installed in the middle of the base frame in four directions, and each adjusting mechanism comprises four first lead screw sliding sleeves and four second lead screw sliding sleeves. By arranging the adjusting mechanism, when a worker clamps a ball valve workpiece, the first motor can be started in advance to enable the positive and negative screw rods to rotate, at the moment, the two opposite first screw rod sliding sleeves acting with the positive and negative screw rods can drive the clamping frames above the first screw rod sliding sleeves to be matched with the guide grooves to conduct relative displacement, and when the two clamping frames are close to each other, the two opposite first screw rod sliding sleeves are driven to rotate. A worker can sequentially and manually twist a twisting block at one end of a transmission lead screw II of the two clamping frames to rotate, and at the moment, a lead screw sliding sleeve II acting with the twisting block can drive an inner clamping plate to be matched with a guide sleeve and a guide rod to perform lifting displacement, so that the aim of respectively adjusting anti-skid clamping blocks and rotating clamping blocks on the inner sides of the two inner clamping plates is fulfilled; and the two clamping blocks can adapt to adaptive clamping point positions on the two sides of different ball valves.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve processing and clamping, in particular to a ball valve clamping device. Background Art

[0002] Ball valves are widely used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they play an important role in the national economy. Clamping devices are generally required in the processing of ball valves.

[0003] For example, patent CN209970521U discloses a clamping device for ball valve production, including a box body, support frames are fixedly connected to both sides of the upper end of the box body, and a servo motor is fixedly connected to the upper end of each support frame, and a rotating shaft is fixedly connected to the opposite side of the two servo motors, and each rotating shaft is fixedly connected to a connecting block at one end away from the servo motor, and each connecting block is fixedly connected to a fixing plate at one side away from the rotating shaft, and each fixing plate is fixedly connected to a plurality of protrusions on the outer side, and each protrusion is provided with a circular frame on one side away from the fixed plate, and each circular frame is provided with a slide groove on one side of the protrusion, and each fixing plate is fixedly connected to a connecting box on one side away from the connecting block, and an electric telescopic rod is fixedly provided in each connecting box, and a pressing block is fixedly connected to the telescopic end of each electric telescopic rod.

[0004] When the above-mentioned clamping device is in use, although it is convenient for personnel to process different surfaces of the clamped ball valve through the rotating adjustment structure, its adjustment direction is single and it can only rotate around the vertical direction. When it involves adjustment of another horizontal surface, personnel are required to remove the ball valve from the clamping state and switch the clamping position first, resulting in reduced practicality and processing efficiency. Therefore, the present application provides a ball valve clamping device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a ball valve clamping device to solve the problem that although the existing rotation adjustment structure is convenient for personnel to process different surfaces of the clamped ball valve, its adjustment direction is single and it can only rotate around the vertical direction. When adjustment of another surface in the horizontal direction is involved, personnel are required to remove the ball valve from the clamping state and switch the clamping direction first, which reduces practicality and processing efficiency.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] The camshaft is an angular movement mechanism which is adapted to move the two guide wheels simultaneously.The camshaft is an angular movement mechanism which moves the two guide wheels simultaneously.The camshaft is an angular movement mechanism which moves the two guide wheels simultaneously.

[0008] Optionally, the linkage clamping assembly includes forward and reverse screw rods, and the forward and reverse screw rods are installed in the horizontal middle part of the preset groove, a motor is installed at the output end of the forward and reverse screw rods, and a bevel gear is fixed to the periphery of one side of the middle part of the forward and reverse screw rods, bevel gears are meshed on both sides of the bevel gear one, and one end of a transmission screw rod is fixed to the middle part of the two bevel gears two, a screw sleeve is screwed on the periphery of one side of the two transmission screw rods and the peripheries of both sides of the forward and reverse screw rods, and guide grooves for guiding the activities of multiple clamping frames are opened on both sides of the horizontal and vertical directions of the preset groove.

[0009] Optionally, four clamping frames are provided, two of which are symmetrically distributed on both sides of the middle of the positive and negative screw rods, and the other two are respectively arranged above the two transmission screw rods, and the above-mentioned clamping frames are relatively distributed between each other.

[0010] Optionally, the point adjustment component includes a preset groove, and the preset groove is opened on both sides of the upper inner side of the clamping frame, a transmission screw rod 2 is installed in the middle of one of the preset grooves, and a screw rod slide sleeve 2 is screwed on the periphery of one side of the transmission screw rod 2, a guide sleeve is fixed on one side of the rear end of the inner clamping plate, and a guide rod for guiding the guide sleeve is fixed in the middle of the other preset groove.

[0011] Optionally, the angle conversion mechanism includes gear 1, and gear 1 is installed at the inner center of the two inner clamping plates. Gear 1 is fixedly sleeved on the periphery of the rotating rod near one end. Gear 2 is meshed with one side of gear 1, and the middle part of gear 2 is connected to the output end of motor 2.

[0012] Optionally, the gear 1 is installed at the inner center of the two inner plates, and the inner middle parts of the other two inner plates are fixedly connected to the fixing rod, wherein the two inner plates respectively carrying the gear 1 and the fixing rod are arranged relative to each other.

[0013] Optionally, the temporary loading mechanism includes support rods, and the support rods are distributed and fixed above the middle part of the base frame, the upper part of the four support rods is connected to the upper part, and the lower part of the upper frame is fixedly installed with an electric push rod, and the protruding end of the electric push rod is connected to the loading plate.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, by setting an adjustment mechanism, when the staff clamps the ball valve workpiece, they can start the motor 1 in advance to rotate the positive and negative screws. At this time, the two relative screw sleeves 1 acting therewith can carry the clamping frames above them to cooperate with the guide grooves for relative displacement. When the two clamping frames are close to each other, the staff can manually twist the torsion blocks at one end of the two clamping frame transmission screws 2 in turn to rotate them. At this moment, the screw sleeve 2 acting therewith can carry the inner clamping plate to cooperate with the guide sleeve and the guide rod for lifting and lowering displacement, thereby achieving the purpose of respectively adjusting the inner side anti-slip clamping blocks and the rotating clamping blocks of the two inner clamping plates, so that the two clamping blocks can adapt to the matching clamping points on both sides of the ball valve. At the same time, at the beginning of the rotation of the above-mentioned positive and negative screws, the bevel gear 1 fixed on one side of the middle will respectively carry the bevel gears 2 on both sides and their respective middle transmission As the screw rod rotates, since the thread opening direction of the two transmission screw rods is exactly opposite to the relative thread opening direction of the positive and negative screw rods, when the screw rod sleeves on both sides of the positive and negative screw rods bring the two relative clamping frames closer to each other, the two screw rod sleeves on the two transmission screw rods will bring the other two clamping frames away from each other. In this way, after the vertical surface of the ball valve workpiece is processed, the staff can temporarily drive the electric push rod to make the carrying plate mounted under the workpiece, and then drive the motor 1 in the reverse direction to make the two clamping frames on the positive and negative screw rods relatively away, while the two clamping frames above the two transmission screw rods can gradually approach each other, so that the corresponding clamping components can be used to clamp the other two sides of the ball valve workpiece, thereby facilitating the personnel to process the lateral surface of the ball valve workpiece, which is portable and practical.

[0016] By setting up an angle conversion mechanism, when the inner clamping plates of the two clamping frames in either direction are close to each other so that the anti-slip clamping block and the rotating clamping block are clamped on both sides of the workpiece, personnel can start the motor 2 on the inner side of one of the inner clamping plates to rotate the gear 2. At this time, the gear 2 can mesh and drive the gear 1 on one side to rotate. At this moment, the gear 1 can rotate with the rotating rod fixed in the middle and the anti-slip clamping block on the top, and cooperate with the rotating clamping block on the other side of the ball valve workpiece to achieve the circumferential angle adjustment of the ball valve workpiece, so as to facilitate the processing of the workpiece in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the ball valve clamping device;

[0019] Figure 2 It is a schematic diagram of the local structure of the linkage clamping assembly of the ball valve clamping device;

[0020] Figure 3 It is a schematic diagram of the three-dimensional partial structure of the ball valve clamping device;

[0021] Figure 4 It is a schematic diagram of the perspective structure of the inner clamping plate of the ball valve clamping device.

[0022] [Reference Signs]

[0023] 1. Base frame; 2. Adjustment mechanism; 21. Preset mounting groove; 22. Linkage clamping assembly; 221. Forward and reverse screws; 222. Motor 1; 223. Bevel gear 1; 224. Bevel gear 2; 225. Transmission screw 1; 226. Screw sleeve 1; 227. Guide groove; 23. Point adjustment assembly; 231. Preset groove; 232. Transmission screw 2; 233. Screw sleeve 2; 234. Guide sleeve; 235. Guide rod; 3. Clamping frame; 4. Inner clamping plate; 5. Rotating rod; 6. Anti-skid clamping block; 7. Angle conversion mechanism; 71. Gear 1; 72. Gear 2; 73. Motor 2; 8. Fixed rod; 9. Rotating clamping block; 10. Temporary loading mechanism; 101. Support rod; 102. Upper frame; 103. Electric push rod; 104. Loading plate.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0025] The following is a detailed description of a ball valve clamping device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0027] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0028] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0029] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0030] like Figures 1 to 4As shown, an embodiment of the utility model provides a ball valve clamping device, including a base frame 1, an adjustment mechanism 2 is installed in four directions in the middle of the base frame 1, the adjustment mechanism 2 includes four screw rod sliding sleeves 226 and four screw rod sliding sleeves 233, and a clamping frame 3 is fixed above the four screw rod sliding sleeves 226, an inner clamping plate 4 is fixed on the inner side of the four screw rod sliding sleeves 233, and a rotating rod 5 is movably provided at the inner middle part of two of the inner clamping plates 4, and a non-slip clamping block 6 is connected to the top of the rotating rod 5, an angle conversion mechanism 7 is installed inside and on the inner side of the two inner clamping plates 4, a fixing rod 8 is fixed at the inner middle part of the other two inner clamping plates 4, and a rotating clamping block 9 is movably provided at the top of the fixing rod 8, a temporary carrying mechanism 10 is installed above the middle of the base frame 1, and a temporary The loading mechanism 10 includes a support rod 101, and the support rod 101 is distributed and fixed on the upper middle part of the base frame 1, an upper mounting frame 102 is connected to the upper part of the four support rods 101, and an electric push rod 103 is fixedly installed at the lower part of the upper mounting frame 102, and the protruding end of the electric push rod 103 is connected to the loading plate 104, the adjustment mechanism 2 includes a preset mounting groove 21, and the preset mounting groove 21 is opened in the middle of the base frame 1, and a linkage clamping assembly 22 is installed inside the preset mounting groove 21, and the linkage clamping assembly 22 includes a positive and negative screw rod 221, and the positive and negative screw rod 221 is installed in the horizontal middle part of the preset mounting groove 21, and a motor 222 is installed at the output end of the positive and negative screw rod 221, and a bevel gear 22 is fixed on the periphery of one side of the middle part of the positive and negative screw rod 221. 3, bevel gear 1 223 is meshed with bevel gear 2 224 on both sides, and one end of a transmission screw 1 225 is fixed in the middle of the two bevel gears 224, and a screw sleeve 1 226 is screwed on the periphery of one side of the two transmission screws 225 and the periphery of both sides of the positive and negative screws 221, and guide grooves 227 for guiding the movement of multiple clamping frames 3 are opened on both sides of the preset groove 21 in the horizontal and vertical directions. There are four clamping frames 3, two of which are symmetrically distributed on both sides of the middle of the positive and negative screws 221, and the other two are respectively arranged above the two transmission screws 1 225, and the above-mentioned clamping frames 3 are relatively distributed in pairs, and a point adjustment component 23 is installed in the middle of the upper part of the clamping frame 3, and the point adjustment component 23 includes a preset groove 231, and the preset groove 2 31 is opened on both sides of the upper inner side of the clamping frame 3, a transmission screw rod 232 is installed in the middle of one of the preset grooves 231, and a screw rod sliding sleeve 233 is screwed on one side of the transmission screw rod 232, and a guide sleeve 234 is fixed on one side of the rear end of the inner clamping plate 4, and a guide rod 235 for guiding the guide sleeve 234 is fixed in the middle of another preset groove 231. When the staff clamps the ball valve workpiece, they can start the motor 222 in advance to rotate the positive and negative screw rods 221. At this time, the two relative screw rod sliding sleeves 226 acting therewith can carry the clamping frames 3 above them to cooperate with the guide grooves 227 for relative displacement. When the two clamping frames 3 are close to each other, the staff can manually twist the torsion blocks at one end of the transmission screw rods 232 of the two clamping frames 3 in turn to rotate them.At this moment, the screw rod sliding sleeve 233 acting therewith can carry the inner clamping plate 4 to cooperate with the guide sleeve 234 and the guide rod 235 for lifting and displacement, thereby achieving the purpose of adjusting the inner anti-skid clamping blocks 6 and the rotating clamping blocks 9 of the two inner clamping plates 4 respectively, so that the two clamping blocks can adapt to the matching clamping points on both sides of the ball valve. At the same time, at the beginning of the rotation of the above-mentioned positive and negative screw rods 221, the bevel gear 1 223 fixedly sleeved on one side of the middle will respectively drive the bevel gears 224 on both sides and the respective middle transmission screw rods 1 225 to rotate. Since the thread opening directions of the two transmission screw rods 1 225 are exactly opposite to the relative thread opening directions of the positive and negative screw rods 221, when the screw rod sliding sleeves 1 226 on both sides of the positive and negative screw rods 221 carry When the two relative clamping frames 3 are displaced close to each other, the two screw sleeves 226 set on the two transmission screw rods 225 will lead the other two clamping frames 3 to move relatively away. It can be seen that when the vertical surface of the ball valve workpiece is processed, the staff can temporarily drive the electric push rod 103 to make the carrying plate 104 mounted under the workpiece, and then reversely drive the motor 222 to make the two clamping frames 3 on the positive and negative screw rods 221 relatively away, and the two clamping frames 3 above the two transmission screw rods 225 can gradually approach, so that the other two sides of the ball valve workpiece can be clamped in cooperation with the corresponding clamping components, so that it is convenient for personnel to process the horizontal surface of the ball valve workpiece, which is portable and practical.

[0031] The angle conversion mechanism 7 includes a gear 71, and the gear 71 is installed at the inner center of the two inner clamping plates 4. The gear 71 is fixedly sleeved on the periphery of the rotating rod 5 near one end. One side of the gear 71 is meshed with a gear 72, and the middle of the gear 72 is connected to the output end of the motor 73. The gear 71 is installed at the inner center of the two inner clamping plates 4, and the inner middle parts of the other two inner clamping plates 4 are fixedly connected to the fixed rod 8. The two inner clamping plates 4 with the gear 71 and the fixed rod 8 are arranged opposite to each other. When the inner plates 4 on the inner sides of the two clamping frames 3 in either direction are close to each other so that the anti-skid clamping block 6 and the rotating clamping block 9 are clamped on both sides of the workpiece, personnel can start the motor 2 73 on the inner side of one of the inner plates 4 to rotate the gear 2 72. At this time, the gear 2 72 can mesh and drive the gear 1 71 on one side to rotate. At this moment, the gear 1 71 can rotate with the rotating rod 5 fixed in the middle and the anti-skid clamping block 6 on the top, and cooperate with the rotating clamping block 9 on the other side of the ball valve workpiece to achieve the circumferential angle adjustment of the ball valve workpiece, thereby facilitating the processing of the workpiece in different directions.

[0032] The working principle provided by the utility model is that when the staff clamps the ball valve workpiece, they can start the motor 222 in advance to rotate the positive and negative screw rods 221. At this time, the two relative screw rod sliding sleeves 226 acting therewith can lead the clamping frames 3 above them to cooperate with the guide grooves 227 for relative displacement. When the two clamping frames 3 are close to each other, the staff can manually twist the torsion blocks at one end of the transmission screw rods 232 of the two clamping frames 3 to rotate them. At this moment, the screw rod sliding sleeves 233 acting therewith can lead the inner clamping plate 4 to cooperate with the guide sleeves 234 and the guide rods 235 for lifting and displacement, thereby achieving the adjustment of the two inner clamping plates respectively. 4 The purpose of the respective inner anti-skid clamping blocks 6 and the rotating clamping blocks 9 is to enable the two clamping blocks to adapt to the adapting clamping points on both sides of different ball valves. At the same time, at the beginning of the rotation of the positive and negative screw rods 221, the bevel gear 1 223 fixedly sleeved on one side of the middle will respectively drive the bevel gears 2 224 on both sides and the respective middle transmission screw rods 1 225 to rotate. Since the thread opening directions of the two transmission screw rods 1 225 are exactly opposite to the relative thread opening directions of the positive and negative screw rods 221, when the screw rod sliding sleeves 1 226 on both sides of the positive and negative screw rods 221 drive the two relative clamping frames 3 to move close to each other, the two transmission screw rods 225 are in the middle of the two transmission screw rods 225. The two screw rod sliding sleeves 226 sleeved on the rod 225 will lead the other two clamping frames 3 to move relatively away. It can be seen that when the vertical surface of the ball valve workpiece is processed, the staff can temporarily drive the electric push rod 103 to make the carrying plate 104 mounted under the workpiece, and then reversely drive the motor 222 to make the two clamping frames 3 on the positive and negative screw rods 221 relatively away, while the two clamping frames 3 above the two transmission screw rods 225 can gradually approach, so that the other two sides of the ball valve workpiece can be clamped in cooperation with the corresponding clamping components, so that the staff can easily clamp the lateral surface of the ball valve workpiece. The processing is portable and practical. Finally, when the inner plates 4 on the inner sides of the two clamping frames 3 in either direction are close to each other so that the anti-skid clamping block 6 and the rotating clamping block 9 are clamped on both sides of the workpiece, personnel can start the motor 2 73 on the inner side of one of the inner plates 4 to rotate the gear 2 72. At this time, the gear 2 72 can engage and drive the gear 1 71 on one side to rotate. At this moment, the gear 1 71 can rotate with the rotating rod 5 fixed in the middle and the anti-skid clamping block 6 on the top, and cooperate with the rotating clamping block 9 on the other side of the ball valve workpiece to achieve the circumferential angle adjustment of the ball valve workpiece, so as to facilitate the processing of the workpiece in different directions.

[0033] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A ball valve clamping device, characterized in that: The invention comprises a base frame (1), wherein an adjustment mechanism (2) is installed in four directions in the middle of the base frame (1), wherein the adjustment mechanism (2) comprises four screw rod sliding sleeves (226) and four screw rod sliding sleeves (233), and a clamping frame (3) is fixedly arranged above the four screw rod sliding sleeves (226), and inner clamping plates (4) are fixed on the inner sides of the four screw rod sliding sleeves (233), and rotating rods (5) are movably arranged in the middle of the inner sides of two of the inner clamping plates (4), and the top ends of the rotating rods (5) are connected to anti-slip clamping blocks (6), and the inner sides of the two inner clamping plates (4) and An angle conversion mechanism (7) is installed on the inner side, a fixing rod (8) is fixedly provided at the inner middle part of the other two inner clamping plates (4), and a rotating clamping block (9) is movably provided at the top of the fixing rod (8), a temporary loading mechanism (10) is installed on the upper middle part of the base frame (1), the adjustment mechanism (2) comprises a preset mounting groove (21), and the preset mounting groove (21) is opened in four directions in the middle part of the base frame (1), a linkage clamping assembly (22) is installed inside the preset mounting groove (21), and a point adjustment assembly (23) is installed on the upper middle part of the clamping frame (3).

2. The ball valve clamping device according to claim 1, characterized in that: The linkage clamping assembly (22) comprises a forward and reverse screw rod (221), and the forward and reverse screw rod (221) is installed in the horizontal middle part of the preset installation slot (21), a motor 1 (222) is installed at the output end of the forward and reverse screw rod (221), and a bevel gear 1 (223) is fixed on the periphery of one side of the middle part of the forward and reverse screw rod (221), and bevel gear 2 (224) is meshed on both sides of the bevel gear 1 (223), and one end of a transmission screw rod 1 (225) is fixed on the middle part of the two bevel gears 2 (224), and a screw rod sliding sleeve 1 (226) is screwed on the periphery of one side of the two transmission screw rods 1 (225) and the periphery of both sides of the forward and reverse screw rods (221), and guide grooves (227) for guiding the multiple clamping frames (3) are opened on both sides of the preset installation slot (21) in the horizontal and vertical directions.

3. The ball valve clamping device according to claim 2, characterized in that: Four clamping frames (3) are provided, two of which are symmetrically distributed on both sides of the middle of the positive and negative screw rods (221), and the other two are respectively arranged above the two transmission screw rods (225), and the clamping frames (3) are distributed relative to each other.

4. The ball valve clamping device according to claim 1, characterized in that: The point adjustment component (23) comprises a preset groove (231), and the preset groove (231) is opened on both sides of the upper inner side of the clamping frame (3), a second transmission screw rod (232) is installed in the middle of one of the preset grooves (231), and a second screw rod sliding sleeve (233) is screwed on the periphery of one side of the second transmission screw rod (232), a guide sleeve (234) is fixed on one side of the rear end of the inner clamping plate (4), and a guide rod (235) for guiding the guide sleeve (234) is fixed in the middle of the other preset groove (231).

5. The ball valve clamping device according to claim 1, characterized in that: The angle conversion mechanism (7) comprises a gear 1 (71), and the gear 1 (71) is mounted at the inner center of the two inner clamping plates (4), the gear 1 (71) is fixedly sleeved on the periphery of the rotating rod (5) near one end, one side of the gear 1 (71) is meshed with a gear 2 (72), and the middle part of the gear 2 (72) is connected to the output end of the motor 2 (73).

6. The ball valve clamping device according to claim 5, characterized in that: The gear one (71) is mounted at the inner center of the two inner clamping plates (4), and the inner middle parts of the other two inner clamping plates (4) are fixedly connected to the fixing rod (8), wherein the two inner clamping plates (4) respectively carrying the gear one (71) and the fixing rod (8) are arranged opposite to each other.

7. The ball valve clamping device according to claim 1, characterized in that: The temporary loading mechanism (10) comprises support rods (101), and the support rods (101) are distributed and fixed above the middle part of the base frame (1), the upper parts of the four support rods (101) are connected to an upper mounting frame (102), and an electric push rod (103) is fixedly installed below the upper mounting frame (102), and the protruding end of the electric push rod (103) is connected to a loading plate (104).

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