Compression fixing device

Abstract

The utility model discloses a compressing and fixing device which comprises a working platform, two fixing mechanisms arranged oppositely and an adjustable supporting mechanism, each fixing mechanism comprises a fixing disc, an adjusting disc, an adjusting disc driving structure and a plurality of clamping and fixing structures, the fixing discs are vertically fixed to the top face of the working platform, and the adjusting discs are vertically fixed to the top face of the working platform. The multiple clamping and fixing structures are installed on the inner side face of the fixing disc in a sliding mode and distributed at equal intervals in the circumferential direction. The adjusting disc is movably installed on the inner sides of the clamping and fixing structures and driven by the adjusting disc driving structure to rotate, and then the clamping and fixing structures are driven to be tightened towards the center or spread outwards. The adjustable supporting mechanism is installed on the operation platform, located on the center point position between the two fixing mechanisms and capable of bearing a workpiece to be machined. The device is simple in structure and capable of effectively compressing and fixing rod-shaped parts, the stability of the parts in the maintenance process is improved, a worker can conveniently maintain the parts, and the applicability is improved.

Description

A clamping and fixing device Technical Field

[0001] This utility model relates to the field of mechanical equipment maintenance technology, specifically to a clamping and fixing device. Background Technology

[0002] Coal mining often requires the use of various large-scale mechanical equipment for assistance. However, when these large-scale mechanical equipment malfunctions, it is often only possible to disassemble and repair the parts. However, these parts are generally large and heavy, and they often need to be firmly fixed during maintenance to prevent them from sliding.

[0003] Patent CN211940000U discloses a clamping and fixing device for repairing parts of open-pit coal mine machinery, comprising a main body and a crossbar. The bottom end of the main body has a groove, inside which a roller is installed, and a wheel is mounted on the roller. While this solution allows for angle adjustment of the clamped parts during implementation, it is inconvenient for fixing cylindrical parts, making the repair of rod-shaped parts quite difficult and reducing the device's applicability. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the existing technology and provide a clamping and fixing device.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a clamping and fixing device, including a working platform, two oppositely arranged fixing mechanisms, and an adjustable support mechanism. The two fixing mechanisms are respectively fixedly installed at the upper ends of the working platform and have the same structure, each including a fixing plate, an adjusting plate, an adjusting plate drive structure, and several clamping and fixing structures. The fixing plate is vertically fixed to the top surface of the working platform, and the several clamping and fixing structures are slidably installed on the inner side of the fixing plate and arranged in a circumferentially evenly spaced manner. The adjusting plate is movably installed on the inner side of the several clamping and fixing structures and is driven to rotate by the adjusting plate drive structure, thereby causing the several clamping and fixing structures to tighten towards the center or expand outward. The adjustable support mechanism is installed on the working platform and located at the center point between the two fixing mechanisms, and can support the workpiece to be processed.

[0006] Furthermore, the adjustable support mechanism includes an internal threaded sleeve, a servo motor, a telescopic connecting rod, an adjusting screw, a lifting column, and a support adjustment plate. The internal threaded sleeve is vertically fixed to the top surface of the work platform, the servo motor is fixedly installed at the bottom of the work platform, and its output end is coaxially connected to the fixed end of the telescopic connecting rod. The telescopic connecting rod extends upward through the work platform and into the interior of the internal threaded sleeve, and its telescopic end is connected to the adjusting screw. The adjusting screw is rotatably installed inside the internal threaded sleeve, and its top end abuts against the bottom end of the lifting column. The lifting column is slidably installed up and down in the internal threaded sleeve, and its top end is fixedly installed with a support adjustment plate.

[0007] Furthermore, the vertical outer wall of the lifting column is provided with a protruding limiting slide bar, and correspondingly, the inner wall of the internal threaded sleeve is provided with a guide groove along its length direction, and the upper limiting slide bar of the lifting column is slidably installed in the guide groove of the internal threaded sleeve.

[0008] Furthermore, the adjustment disc drive structure includes a drive motor and a drive gear. The drive motor is fixedly installed on the bottom outer side of the fixed disc, and its output shaft passes inward through the fixed disc and is rotatably connected to it through a bearing. The drive gear is coaxially fixedly installed at the end of the output shaft of the drive motor.

[0009] Correspondingly, the outer periphery of the adjusting disc is provided with external teeth, which can mesh with the aforementioned drive gear.

[0010] Furthermore, the adjusting plate is provided with multiple arc-shaped adjusting grooves corresponding to the aforementioned clamping and fixing structures.

[0011] Furthermore, the various clamping and fixing structures have the same structural composition, each including a transmission slider, a pressure plate, and a transmission adjusting rod. The pressure plate is fixedly installed at the lower end of the transmission slider, and the transmission adjusting rod is vertically fixed at the upper end of the transmission slider, extends inward, and is slidably installed in the corresponding adjusting groove.

[0012] Correspondingly, the inner wall of the fixed plate is provided with a limiting groove, and the aforementioned transmission slider is slidably installed into the corresponding limiting groove.

[0013] Furthermore, a soft pad is installed on the top surface of the support adjustment plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model, by setting up a fixed plate, an adjusting plate, a transmission slider and a clamping plate, etc., through the meshing relationship between the drive gear and the adjusting plate, enables the drive gear to drive the adjusting plate to rotate when rotating, thereby adjusting the position of the clamping plate, so that the clamping plate can clamp and fix the rod-shaped parts, preventing the rod-shaped parts from moving during maintenance, making it convenient for workers to clamp and maintain parts of different diameters, and improving the applicability of the device;

[0016] 2. This utility model, by setting up a support adjustment plate, a lifting column, an internal threaded sleeve, and an adjusting screw, allows the lifting column to slide and rise within the internal threaded sleeve when the adjusting screw rotates, thereby adjusting the height of the support adjustment plate. This enables the support adjustment plate to lift the tightly pressed rod-shaped parts, improving the stability of the parts during maintenance and preventing bending or even breakage due to heavy loads, thus enhancing the safety of the device when maintaining parts. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a structural schematic diagram of the fixing mechanism in this utility model;

[0019] Figure 3 is an exploded view of the fixing mechanism in this utility model;

[0020] Figure 4 is a schematic diagram of the clamping and fixing structure in this utility model;

[0021] Figure 5 is a structural schematic diagram of the adjustable support mechanism in this utility model;

[0022] In the diagram: 1. Working platform, 2. Fixing mechanism, 3. Internal threaded sleeve, 4. Lifting column, 5. Support adjustment plate, 6. Limiting slide bar, 7. Adjusting screw, 8. Servo motor, 9. Telescopic connecting rod, 201. Fixing plate, 202. Adjusting plate, 203. Limiting slide groove, 204. Transmission slider, 205. Pressing plate, 206. Transmission adjustment rod, 207. Adjusting slide groove, 208. Drive motor, 209. Drive gear. Detailed Implementation

[0023] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "coaxial", and "center" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0026] As shown in Figure 1, a clamping and fixing device includes a working platform 1, two opposing fixing mechanisms 2, and an adjustable support mechanism. The working platform 1 provides support for the entire device. The two opposing fixing mechanisms 2 are fixedly installed at the left and right ends of the top surface of the working platform 1, and have identical structures. As shown in Figures 2 and 3, each fixing mechanism 2 includes a fixing plate 201, an adjusting plate 202, an adjusting plate drive structure, and several clamping and fixing structures. The fixing plate 201 includes an integrally formed upper disc and a lower support base. The lower support base is fixedly installed on the working platform 1 by bolts. The upper disc is vertically arranged and has a coaxial part placement hole at its center. The part placement hole has a large diameter to accommodate rod-shaped parts of different diameters to be repaired. The inner side of the upper disc of the fixing plate 201 (with the side opposite to the two fixing mechanisms 2 as the inner side) also has several circumferentially spaced limiting grooves 203. The aforementioned clamping and fixing structures with identical structures are installed one-to-one in the limiting grooves 203. Referring to Figure 4, each clamping and fixing structure includes a transmission slider 204, a pressure plate 205, and a transmission adjusting rod 206. The pressure plate 205 is fixedly installed at the bottom end of the transmission slider 204, and the transmission adjusting rod 206 is horizontally fixedly installed at the upper end of the transmission slider 204, extending inward and perpendicular to it. The transmission slider 204 is slidably installed in the corresponding limiting groove 203. At the same time, the outer end of the pressure plate 205 can also form a limit with the limiting groove 203 to prevent the transmission slider 204 from sliding off in the outward direction. The aforementioned adjusting disc 202 is installed on the inner side of the aforementioned fixing disc 201 through several clamping and fixing structures, and is also a circular structure. The adjusting disc 202 is provided with several arc-shaped adjusting grooves 207, the same number as the clamping and fixing structures, with an offset angle. The transmission adjusting rods 206 in the clamping and fixing structures are slidably installed in the adjusting grooves 207 one by one, and can slide along them. The adjusting grooves 207 can limit and support the transmission adjusting rods 206. The outer edge of the adjusting disc 202 is provided with external teeth. The adjustment disc drive structure includes a drive motor 208 and a drive gear 209. The drive motor 208 is fixedly installed on the outside of the lower support seat in the fixed disc 201 by bolts. Its output shaft passes inward through the lower support seat of the fixed disc 201 and is rotatably connected to it by bearings. The drive gear 209 is coaxially fixedly installed at the end of the output shaft of the drive motor 208 by a key. The drive gear 209 meshes with the external teeth of the adjustment disc 202 and can drive the adjustment disc 202 to reciprocate.

[0027] The adjustable support mechanism is installed on the work platform 1, located at the center point between the two fixed mechanisms 2. As shown in Figure 5, the adjustable support mechanism includes an internal threaded sleeve 3, a servo motor 8, a telescopic connecting rod 9, an adjusting screw 7, a lifting column 4, and a support adjustment plate 5. The internal threaded sleeve 3 is vertically welded and fixed to the top surface of the work platform 1. The servo motor 8 is fixedly installed at the bottom of the work platform 1 via a motor bracket, and its output end is coaxially fixedly connected to the fixed end of the telescopic connecting rod 9. The telescopic connecting rod 9 passes upward through the work platform 1 and extends into the interior of the internal threaded sleeve 3, rotatably connecting with the work platform 1. The telescopic end of the telescopic connecting rod 9 is fixedly connected to the lower end of the adjusting screw 7. The adjusting screw 7 is threaded and rotatably installed inside the internal threaded sleeve 3, and its top end rotates to abut against the bottom end of the lifting column 4. The lifting column 4 is slidably installed inside the internal threaded sleeve 3, and its top end is fixedly installed with the support adjustment plate 5. The support adjustment plate 5 can lift the middle of the bar-shaped part to be pressed and fixed, thereby improving the stability of the part during the maintenance process. The vertical outer side wall of the lifting column 4 is also provided with an outwardly protruding limiting slide 6. Correspondingly, the inner side wall of the internal threaded sleeve 3 is provided with a guide groove along its length direction. The upper limit slide 6 of the lifting column 4 is slidably installed in the guide groove of the internal threaded sleeve 3 to limit the rotation of the lifting column 4 and avoid affecting the bearing angle of the support adjustment plate 5.

[0028] In a further optimized technical solution, a soft pad can be detachably installed on the top surface of the support adjustment plate 5. The material of the soft pad should be based on the maintenance requirements to avoid affecting the maintenance process. It can buffer the collision between the parts and the support adjustment plate 5, and can also effectively prevent friction damage to the surface of the parts during the maintenance support process.

[0029] The specific working principle is as follows: When the staff uses the above-mentioned device to repair the rod-shaped part, firstly, the part to be repaired is passed through the part placement holes in the two fixing mechanisms 2, and the position to be repaired is placed above the support adjustment plate 5; then, the drive motor 208 in the two fixing mechanisms 2 is started. The start of the drive motor 208 can drive the drive gear 209 to rotate. The rotation of the drive gear 209 drives the adjustment plate 202 to rotate through gear meshing. Due to the setting of the arc-shaped adjustment slide groove 207 on the adjustment plate 202, the internal transmission adjustment rod 206 is driven to slide by the change of its rotation position, thereby driving the transmission slider 204 to slide along the corresponding limit slide groove 203, and then driving the clamping plate 205 to retract towards the center, clamping the part to be repaired; the bottom surface of the clamping plate 205 is treated with friction, which can effectively improve the clamping force of the clamping plate 205 on the part and prevent the part from rotating or sliding during the fixing process. After the two fixing mechanisms 2 complete the clamping and fixing operation, the operator starts the servo motor 8. The operation of the servo motor 8 drives the telescopic connecting rod 9 to rotate. The rotation of the telescopic connecting rod 9 drives the adjusting screw 7 to rotate, thereby causing the adjusting screw 7 to rise and fall inside the internal threaded sleeve 3. This, in turn, causes the lifting column 4 to slide and rise and fall within the internal threaded tube 3, thereby adjusting the height of the support adjusting plate 5 to accommodate the support of rod-shaped parts of different diameters, and then proceeding with the maintenance work. After the operation is completed, the servo motor 8 and the drive motor 208 both rotate in reverse, the support adjusting plate 5 descends, and the clamping plate 205 expands outward from the center, facilitating the removal of the repaired parts.

[0030] The above two fixing mechanisms 2 enable the entire device to clamp and fix both ends of the rod-shaped part, ensuring that both ends of the part can be stably clamped and preventing the part from sliding during maintenance and affecting the maintenance work.

[0031] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A clamping and fixing device, characterized in that: The system includes a working platform, two oppositely arranged fixed mechanisms, and an adjustable support mechanism. The two fixed mechanisms are fixedly installed at the upper ends of the working platform and have identical structures, each including a fixed plate, an adjusting plate, an adjusting plate drive structure, and several clamping and fixing structures. The fixed plate is vertically fixed to the top surface of the working platform, and the several clamping and fixing structures are slidably installed on the inner side of the fixed plate, arranged at equal intervals around the circumference. The adjusting plate is movably installed on the inner side of the several clamping and fixing structures and is driven to rotate by the adjusting plate drive structure, thereby causing the several clamping and fixing structures to tighten towards the center or expand outward. The adjustable support mechanism is installed on the working platform, located at the center point between the two fixed mechanisms, and can support the workpiece to be processed.

2. The clamping and fixing device according to claim 1, characterized in that: The adjustable support mechanism includes an internal threaded sleeve, a servo motor, a telescopic connecting rod, an adjusting screw, a lifting column, and a support adjustment plate. The internal threaded sleeve is vertically fixed to the top surface of the work platform, and the servo motor is fixedly installed at the bottom of the work platform. Its output end is coaxially connected to the fixed end of the telescopic connecting rod. The telescopic connecting rod extends upward through the work platform and into the interior of the internal threaded sleeve. Its telescopic end is connected to the adjusting screw. The adjusting screw is rotatably installed inside the internal threaded sleeve, and its top end abuts against the bottom end of the lifting column. The lifting column is slidably installed up and down in the internal threaded sleeve, and its top end is fixedly installed with a support adjustment plate.

3. The clamping and fixing device according to claim 2, characterized in that: The lifting column has a protruding limiting slide on its vertical outer side wall, and correspondingly, the inner side wall of the internal threaded sleeve has a guide groove along its length direction. The upper limiting slide of the lifting column is slidably installed in the guide groove of the internal threaded sleeve.

4. The clamping and fixing device according to claim 1, characterized in that: The adjustment disc drive structure includes a drive motor and a drive gear. The drive motor is fixedly installed on the bottom outer side of the fixed disc, and its output shaft passes through the fixed disc and is rotatably connected to it through a bearing. The drive gear is coaxially fixedly installed at the end of the output shaft of the drive motor. Correspondingly, the outer periphery of the adjustment disc is provided with external teeth that can mesh with the drive gear.

5. The clamping and fixing device according to claim 1, characterized in that: The adjusting plate is provided with multiple arc-shaped adjusting grooves corresponding to the above-mentioned clamping and fixing structures.

6. The clamping and fixing device according to claim 5, characterized in that: Several clamping and fixing structures have the same structure, each including a transmission slider, a pressure plate, and a transmission adjusting rod. The pressure plate is fixedly installed at the lower end of the transmission slider, and the transmission adjusting rod is vertically fixed at the upper end of the transmission slider, extends inward, and is slidably installed in the corresponding adjusting groove. Correspondingly, a limiting groove is provided on the inner side wall of the fixing plate, and the transmission slider is slidably installed in the corresponding limiting groove.

7. The clamping and fixing device according to claim 2, characterized in that: A soft pad is installed on the top surface of the support adjustment plate.

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