Clamping device

Abstract

The utility model relates to the technical field of precise instruments, and provides a clamping device. Comprising a supporting plate, a mounting block, a fixed block, a pushing piece, a moving plate and a lead screw motor; the mounting block is fixedly arranged at the top of the supporting plate, the lead screw motor is fixed at the top of the mounting block, the moving plate is arranged below the mounting block, the moving plate is provided with a lead screw nut, and a lead screw of the lead screw motor is connected with the lead screw nut; the bottom of the moving plate is fixedly connected with the top of the pushing part; the fixing block is fixedly arranged at the bottom of the supporting plate, the fixing block is provided with a through hole and a T-shaped hole, the bottom of the pushing piece is arranged in the through hole, the clamping sliding block is provided with a U-shaped hole, the clamping sliding block is arranged at the bottom of the T-shaped hole, a screw is arranged in the T-shaped hole, and the screw penetrates through the U-shaped hole to be fixedly connected with the bottom of the fixing block. And objects with different sizes can be clamped, so that clamping is more stable and accurate, and the clamping force is better controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of precision instruments, in particular to a clamping device. Background Art

[0002] Microfluidic chip is a hot area in the development of Miniaturized Total Analysis Systems. Microfluidic chip analysis uses chips as operating platforms, analytical chemistry as its basis, micro-electromechanical processing technology as its support, micro-channel networks as its structural features, and life sciences as its main application objects. It is the focus of the current development of the field of micro-total analysis systems. Its goal is to integrate the functions of the entire laboratory, including sampling, dilution, reagent addition, reaction, separation, detection, etc., on a microchip, and it can be used multiple times. Characteristics and development advantages of microfluidic chips: Microfluidic chips have the characteristics of controllable liquid flow, very little consumption of samples and reagents, and analysis speed increased by ten or hundreds of times. It can analyze hundreds of samples simultaneously in a few minutes or even shorter time, and can realize the whole process of sample pretreatment and analysis online.

[0003] Due to the characteristics of microfluidic chips, when adding samples, extracting samples or performing other operations on microfluidic chips, the operation accuracy requirements are very high, and existing operation equipment is prone to operation errors. When using a microfluidic system to process microfluidic chips, specific equipment is generally used and fixed on the microfluidic system. However, since microfluidic experiments involve a large number of experimental equipment, it is difficult to fix all equipment on the microfluidic system. Therefore, it is necessary to set up a clamping device to install some less frequently used equipment to improve the flexibility of the microfluidic system; however, the current clamping device has low accuracy, and it is easy to loosen during clamping or practical use, affecting the accuracy of microfluidic experiments.

[0004] In the prior art, the clamping device is not stable enough and is prone to loosening and position shifting during movement, which fails to meet the high-precision use requirements of the microfluidic chip. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the purpose of the utility model is to provide a clamping device.

[0006] The present application provides a clamping device for clamping related operation equipment in a digital microfluidic system, comprising:

[0007] Support plate, mounting block, fixing block, pushing member, moving plate and screw motor;

[0008] The mounting block is fixedly arranged on the top of the support plate, the lead screw motor is fixed on the top of the mounting block, the movable plate is arranged below the mounting block, the movable plate is provided with a lead screw nut, the lead screw of the lead screw motor is connected with the lead screw nut; the lead screw nut passes through the movable plate, the lead screw of the lead screw motor can pass through the lead screw nut to the bottom of the movable plate, and the rotary motion is converted into linear motion through the cooperation of the lead screw nut and the lead screw of the lead screw motor, so that the movable plate can be moved up and down; the bottom of the movable plate is fixedly connected to the top of the pushing member;

[0009] The fixing block is fixedly arranged at the bottom of the support plate, and the fixing block is provided with a through hole and a T-shaped hole. The bottom of the pushing member is arranged in the through hole, one end of the bottom of the T-shaped hole is connected with the through hole, and the other end of the bottom of the T-shaped hole is connected with the outside of the fixing block; a clamping slider is provided at the bottom of the T-shaped hole, a screw is provided in the T-shaped hole, and the clamping slider is provided with a U-shaped hole, and the screw passes through the U-shaped hole and is fixedly connected to the bottom of the fixing block.

[0010] In one of the embodiments, a protrusion is provided at the bottom of the fixing block, and the through hole, the T-shaped hole and the clamping slider are arranged on the protrusion.

[0011] By setting a lead screw motor, a lead screw nut and a moving plate, the lead screw of the lead screw motor rotates in coordination with the lead screw nut to control the moving plate to move up and down, thereby driving the pushing member to move up and down; by setting a U-shaped hole and a screw, the clamping slider can be moved toward the through hole or to the outside of the fixed block at the bottom of the T-shaped hole, and the pushing member squeezes the clamping slider in the through hole to move outward, so that the clamping slider can move outward to clamp objects of different sizes; at the same time, the support plate, the mounting block and the fixed block form a stable structure, making the structure of the entire clamping device more stable; by setting a lead screw motor to drive the moving plate and the pushing member to move precisely, and by driving the movement of the pushing member through the lead screw motor, the clamping is made more stable and accurate, and the clamping force is better controlled.

[0012] Working principle: The support plate, the mounting block and the fixed block form a stable structure. The screw is rotated by starting the screw motor, and the screw is matched with the screw thread to convert the rotational motion into linear motion, so that the movable plate can move up and down, thereby driving the pushing member to move downward as a whole, wherein the amplitude and speed of movement can be controlled by the screw motor, so that the clamping is more stable and accurate, so as to avoid loosening of the clamping or excessive clamping force to damage the clamping device, parts or equipment; the clamping slider is placed at the bottom of the T-hole, and the screw passes through the U-hole and is fixedly connected to the bottom of the fixed block, so that the clamping slider can move left and right at the bottom of the T-hole, when the pushing member moves downward and squeezes, the clamping slider moves outward, and the outer side of the clamping slider abuts against the inner side of the object to be clamped, so that the clamping slider fixes the object to be clamped, so as to achieve the clamping effect; for example, when the object to be clamped is a test tube, the clamping slider moves outward, and the outer side of the clamping slider abuts against the inner side of the test tube, so that the clamping slider fixes the test tube, so as to achieve the effect of clamping the test tube. When the pusher moves upward, it separates from the clamping slider, and the force acting on the clamping slider disappears. When the clamping slider touches the object to be clamped, it moves inward into the through hole, thereby releasing the clamped object. The movement of the pusher is driven by the screw motor, making the clamping more stable and accurate, and better controlling the clamping force.

[0013] In one of the embodiments, a fixed bearing is fixedly provided inside the mounting block, and the bottom of the guide rod passes through the fixed bearing and is fixedly connected to the movable plate; the fixed bearing passes through the mounting block, and the guide rod can pass through the fixed bearing and move up and down in the fixed bearing; preferably, the guide rod is perpendicular to the movable plate; by providing the fixed bearing and the guide rod, the up and down movement of the movable plate is more stable, and the guide rod will not deviate when moving up and down along the fixed bearing, thereby improving the stability of the movement of the movable plate and preventing the movable plate from deviating when moving up and down.

[0014] In one of the embodiments, the screw nut is arranged at the center of the movable plate; by arranging the screw nut at the center of the movable plate, the tilting of the movable plate due to the imbalance of left and right gravity is reduced when the movable plate moves up and down, so that the up and down movement of the movable plate is more stable.

[0015] In one of the embodiments, at least two fixed bearings are provided inside the mounting block, and the fixed bearings are symmetrically arranged on both sides of the lead screw nut; by symmetrically arranging and supporting the two fixed bearings, the lead screw nut is arranged at the center of the movable plate, and then the guide rods are symmetrically arranged on both sides of the lead screw nut, that is, the guide rods are symmetrically arranged on both sides of the movable plate, which can make the movable plate move up and down more stably. If the guide rods are asymmetrically arranged or arranged on one side of the movable plate, the movable plate is easily tilted or the up and down movement is unstable under the influence of the gravity of the movable plate.

[0016] In one of the embodiments, the pushing member includes a accommodating cavity and a push pin, the top of the accommodating cavity is fixedly connected to the bottom of the movable plate, the push pin is fixedly arranged at the bottom of the accommodating cavity, and the bottom of the screw of the screw motor passes through the screw nut into the accommodating cavity; by setting up the accommodating cavity, a accommodating space for the screw of the screw motor is provided, the space for the movable plate to move up and down is increased, and the size of the entire clamping device can be reduced.

[0017] In one of the embodiments, the push pin is arranged just below the center of the movable plate, and the push pin corresponds to the position of the screw nut; the bottom of the push pin passes through the through hole to push the clamping slider, so that the clamping slider moves outward.

[0018] In one of the embodiments, the push column is perpendicular to the fixed block, the push column is coaxial with the screw of the screw motor, and the screw of the screw motor is perpendicular to the movable plate; by setting the push column perpendicular to the fixed block and the push column coaxial with the screw of the screw motor, the amplitude of the up and down movement of the push column is consistent with the amplitude of the up and down movement of the movable plate; and then the up and down movement distance of the push column can be accurately controlled by the screw motor, so as to accurately regulate the contact between the push column and the clamping slider, so that the outward movement amplitude of the clamping slider can be accurately controlled; so that the clamping device can clamp the corresponding parts or equipment more firmly, and reduce the looseness of clamping or excessive clamping force to damage related objects.

[0019] In one of the embodiments, the fixing block is provided with at least three T-shaped holes, and the T-shaped holes are evenly arranged on the outside of the through hole; preferably, the fixing block is provided with three T-shaped holes; by evenly arranging the T-shaped holes, the clamping slider is evenly arranged on the outside of the through hole, so that the clamping slider can better clamp the object, the force of clamping the object is more uniform, and the clamping is more stable.

[0020] In one of the embodiments, a first threaded hole is provided on the side of the fixing block, and a second threaded hole corresponding to the first threaded hole is provided on the bottom of the support plate, and the fixing block is fixed to the bottom of the support plate by connecting the first threaded hole and the second threaded hole by screws; by providing corresponding first threaded holes and second threaded holes, the connection between the fixing block and the support plate is made more stable, thereby improving the stability of the entire clamping device.

[0021] In one of the embodiments, a fixing piece is provided on the top of the mounting block, and the fixing piece is provided with a guide hole and a fixing hole. The top of the guide rod passes through the guide hole, and the fixing piece is bolted to the mounting block through the fixing hole; the guide rod moves up and down in the guide hole and the fixed bearing. By setting the fixing piece, the up and down movement of the guide rod can be made more stable.

[0022] The beneficial effects of the utility model are:

[0023] The above-mentioned clamping device is provided with a supporting plate, a mounting block, a fixed block, a clamping slider, a pushing piece, a moving plate and a screw motor; by providing a screw motor, a screw nut and a moving plate, the screw of the screw motor rotates in cooperation with the screw nut to control the moving plate to move up and down, thereby driving the pushing piece to move up and down; by providing a U-shaped hole and a screw, the clamping slider can be moved toward the through hole or to the outside of the fixed block at the bottom of the T-shaped hole, and the pushing piece squeezes the clamping slider in the through hole to move outward, so that the clamping slider can move outward to clamp objects of different sizes; at the same time, the supporting plate, the mounting block and the fixed block form a stable structure, which makes the structure of the entire clamping device more stable; by providing a screw motor to drive the moving plate and the pushing piece to move precisely, and by the screw motor driving the movement of the pushing piece, the clamping is more stable and accurate, and the clamping force is better controlled;

[0024] The support plate, the mounting block and the fixed block form a stable structure. The screw is rotated by starting the screw motor, and the screw is matched with the screw thread to convert the rotational motion into linear motion, so that the movable plate can move up and down, thereby driving the pushing member to move downward as a whole, wherein the amplitude and speed of movement can be controlled by the screw motor, so that the clamping is more stable and accurate, so as to avoid loosening of the clamping or excessive clamping force to damage the clamping device, parts or equipment; the clamping slider is placed at the bottom of the T-shaped hole, and the screw passes through the U-shaped hole and is fixedly connected to the bottom of the fixed block, so that the clamping slider can move left and right at the bottom of the T-shaped hole, when the pushing member moves downward and squeezes, the clamping slider moves outward, and the outer side of the clamping slider abuts against the inner side of the object to be clamped, so that the clamping slider fixes the object to be clamped, so as to achieve the clamping effect; for example, when the object to be clamped is a test tube, the clamping slider moves outward, and the outer side of the clamping slider abuts against the inner side of the test tube, so that the clamping slider fixes the test tube, so as to achieve the effect of clamping the test tube. When the pusher moves upward, it separates from the clamping slider, and the force acting on the clamping slider disappears. When the clamping slider touches the object to be clamped, it moves inward into the through hole, thereby releasing the clamped object. The movement of the pusher is driven by the screw motor, making the clamping more stable and accurate, and better controlling the clamping force.

[0025] The clamping device of the utility model can overcome the problem of looseness or damage to the clamped object caused by excessive clamping force during clamping of ordinary clamping structures. The screw motor can accurately control the movement amplitude and force. At the same time, a moving guide rod and a moving plate with guide rod holes are provided to make the up and down movement of the clamping slide block more stable, thereby ensuring the stability of clamping.

[0026] Other features and advantages of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a clamping device in an embodiment;

[0028] Figure 2 A schematic diagram of the through hole and T-shaped hole structure of the clamping device in the embodiment;

[0029] Figure 3 Schematic diagram of the clamping slider and screw structure of the clamping device in the embodiment.

[0030] Reference numerals:

[0031] 1. Support plate; 2. Mounting block; 3. Fixed block; 31. Through hole; 32. T-shaped hole; 4. Clamping slider; 41. U-shaped hole; 42. Screw; 5. Push column; 6. Accommodating cavity; 7. Screw motor; 71. Screw; 8. Moving plate; 9. Guide rod; 10. Fixing parts. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.

[0035] Unless otherwise specified, the methods and equipment used in the present invention are all conventional reagents, methods and equipment in the technical field.

[0036] In order to facilitate the understanding of the embodiments of the utility model, the clamping device in the related art is first described. In the related art, a calibration instrument is often used to calibrate the horizontal plane direction, and the clamping effect is poor. A low clamping force will cause the clamped object to become loose and the clamping is unstable; a high clamping force is likely to cause damage to the clamped object. Based on this, the present application provides a clamping device.

[0037] As shown in the accompanying drawings, a clamping device provided in Example 1 of the present application is used for clamping related operation equipment in a digital microfluidic system, and the clamping device includes:

[0038] Support plate 1, mounting block 2, fixing block 3, pushing member, moving plate 8 and screw motor 7;

[0039] The mounting block 2 is fixedly arranged on the top of the support plate 1, the screw motor 7 is fixed on the top of the mounting block 2, the movable plate 8 is arranged below the mounting block 2, the movable plate 8 is provided with a screw nut, and the screw 71 of the screw motor 7 is connected with the screw nut; the screw nut passes through the movable plate 8, and the screw 71 of the screw motor 7 can pass through the screw nut to the bottom of the movable plate 8, and the rotary motion is converted into linear motion through the cooperation of the screw nut and the screw 71 of the screw motor 7, so that the movable plate 8 can move up and down; the bottom of the movable plate 8 is fixedly connected to the top of the pushing member;

[0040] The fixing block 3 is fixedly arranged at the bottom of the support plate 1, and is provided with a through hole 31 and a T-shaped hole 32. The bottom of the pushing member is arranged in the through hole 31, one end of the bottom of the T-shaped hole 32 is connected with the through hole 31, and the other end of the bottom of the T-shaped hole 32 is connected with the outside of the fixing block 3; a clamping slider 4 is provided at the bottom of the T-shaped hole 32, a screw 42 is provided in the T-shaped hole 32, and the clamping slider 4 is provided with a U-shaped hole 41, and the screw 42 passes through the U-shaped hole 41 and is fixedly connected to the bottom of the fixing block 3.

[0041] In a preferred implementation manner in the embodiment of the present application, a protrusion is provided at the bottom of the fixing block 3, and the through hole 31, the T-shaped hole 32 and the clamping slide block 4 are arranged on the protrusion.

[0042] It should be noted that the fixed bearing is arranged inside the mounting block 2, which is not shown in the drawings.

[0043] By setting a screw motor 7, a screw nut and a moving plate 8, the screw 71 of the screw motor 7 rotates and cooperates with the screw nut to control the moving plate 8 to move up and down, thereby driving the pushing member to move up and down; by setting a U-shaped hole 41 and a screw 42, the clamping slider 4 can be moved toward the through hole 31 or to the outside of the fixed block 3 at the bottom of the T-shaped hole 32, and the pushing member squeezes the clamping slider 4 in the through hole 31 to move outward, so that the clamping slider 4 can move outward to clamp objects of different sizes; at the same time, the support plate 1, the mounting block 2 and the fixed block 3 form a stable structure, so that the structure of the entire clamping device is more stable; by setting a screw motor 7 to drive the moving plate 8 and the pushing member to move accurately, and by the screw motor 7 to drive the movement of the pushing member, the clamping is more stable and accurate, and the clamping force is better controlled.

[0044] Working principle: the support plate 1, the mounting block 2 and the fixing block 3 form a stable structure. The screw motor 7 is started to rotate the screw rod 71, and the screw rod 71 is threaded to convert the rotational motion into linear motion, so that the movable plate 8 can move up and down, thereby driving the pusher to move downward as a whole. The amplitude and speed of movement can be controlled by the screw motor 7, so that the clamping is more stable and accurate, so as to avoid loose clamping or excessive clamping force to damage the clamping device, parts or equipment; the clamping slide block 4 is placed at the bottom of the T-hole 32 The screw 42 passes through the U-shaped hole 41 and is fixedly connected to the bottom of the fixing block 3, so that the clamping slider 4 can move left and right at the bottom of the T-shaped hole 32. When the pusher moves downward and squeezes, the clamping slider 4 moves outward, and the outer side of the clamping slider 4 abuts against the inner side of the object to be clamped, so that the clamping slider 4 fixes the object to be clamped, achieving the clamping effect; for example, when the object to be clamped is a test tube, the clamping slider 4 moves outward, and the outer side of the clamping slider 4 abuts against the inner side of the test tube, so that the clamping slider 4 fixes the test tube, achieving the effect of clamping the test tube. When the pusher moves upward, it contacts and separates from the clamping slider 4, and the force acting on the clamping slider 4 disappears. When the clamping slider 4 touches the object to be clamped, it will move inward into the through hole 31, thereby achieving the release of the clamped object. The movement of the pusher is driven by the screw motor 7, so that the clamping is more stable and accurate, and the clamping force is better controlled.

[0045] In a preferred implementation manner in the embodiment of the present application, a fixed bearing is fixedly provided inside the mounting block 2, and the bottom of the guide rod 9 passes through the fixed bearing and is fixedly connected to the movable plate 8; the fixed bearing passes through the mounting block 2, and the guide rod 9 can pass through the fixed bearing and move up and down in the fixed bearing; preferably, the guide rod 9 is perpendicular to the movable plate 8; by providing the fixed bearing and the guide rod 9, the up and down movement of the movable plate 8 is made more stable, and the guide rod 9 will not deviate when moving up and down along the fixed bearing, thereby improving the stability of the movement of the movable plate 8 and preventing the movable plate 8 from deviating when moving up and down.

[0046] In a preferred implementation manner in the embodiment of the present application, the screw nut is arranged at the center of the movable plate 8; by arranging the screw nut at the center of the movable plate 8, the tilting of the movable plate 8 due to the imbalance of gravity on the left and right sides is reduced when the movable plate 8 moves up and down, so that the up and down movement of the movable plate 8 is more stable.

[0047] In a preferred implementation manner in the embodiment of the present application, at least two fixed bearings are provided inside the mounting block 2, and the fixed bearings are symmetrically arranged on both sides of the screw nut; by symmetrically arranging and supporting the two fixed bearings, the screw nut is arranged at the center of the movable plate 8, and then the guide rod 9 is symmetrically arranged on both sides of the screw nut, that is, the guide rod 9 is symmetrically arranged on both sides of the movable plate 8, which can make the movable plate 8 move up and down more stably. If the guide rod 9 is asymmetrically arranged or arranged on one side of the movable plate 8, it is easy to cause the movable plate 8 to tilt or move up and down unstably under the influence of the gravity of the movable plate 8.

[0048] In a preferred implementation manner in the embodiment of the present application, the pushing member includes a accommodating cavity 6 and a pushing column 5, the top of the accommodating cavity 6 is fixedly connected to the bottom of the movable plate 8, the pushing column 5 is fixedly arranged at the bottom of the accommodating cavity 6, and the bottom of the screw 71 of the screw motor 7 passes through the screw nut to the accommodating cavity 6; by setting the accommodating cavity 6, an accommodating space for the screw 71 of the screw motor 7 is provided, the space for the movable plate 8 to move up and down is increased, and the size of the entire clamping device can be reduced.

[0049] In a preferred implementation manner in the embodiment of the present application, the push column 5 is arranged directly below the center of the movable plate 8, and the push column 5 corresponds to the position of the screw nut; the bottom of the push column 5 passes through the through hole 31 to push the clamping slider 4, so that the clamping slider 4 moves outward.

[0050] In a preferred implementation manner in the embodiment of the present application, the push column 5 is perpendicular to the fixed block 3, the push column 5 is coaxial with the screw 71 of the screw motor 7, and the screw 71 of the screw motor 7 is perpendicular to the movable plate 8; by setting the push column 5 perpendicular to the fixed block 3, and the push column 5 is coaxial with the screw 71 of the screw motor 7, the amplitude of the up and down movement of the push column 5 is consistent with the amplitude of the up and down movement of the movable plate 8; and then the up and down movement distance of the push column 5 can be accurately controlled by the screw motor 7, thereby accurately regulating the contact between the push column 5 and the clamping slider 4, so that the outward movement amplitude of the clamping slider 4 can be accurately controlled; the clamping device can clamp the corresponding parts or equipment more firmly, and reduce the looseness of the clamping or excessive clamping force that damages related objects.

[0051] In a preferred implementation manner in the embodiment of the present application, the fixing block 3 is provided with at least three T-shaped holes 32, and the T-shaped holes 32 are evenly arranged on the outside of the through hole 31; preferably, the fixing block 3 is provided with three T-shaped holes 32; by evenly arranging the T-shaped holes 32, the clamping slider 4 is evenly arranged on the outside of the through hole 31, so that the clamping slider 4 can better clamp the object, the force of clamping the object is more uniform, and the clamping is more stable.

[0052] In a preferred implementation manner in the embodiment of the present application, a first threaded hole is provided on the side of the fixing block 3, and a second threaded hole corresponding to the first threaded hole is provided on the bottom of the support plate 1, and the fixing block 3 is fixed to the bottom of the support plate 1 by connecting the first threaded hole and the second threaded hole by screws; by providing corresponding first threaded holes and second threaded holes, the connection between the fixing block 3 and the support plate 1 is made more stable, thereby improving the stability of the entire clamping device.

[0053] In a preferred implementation manner in the embodiment of the present application, a fixing part 10 is provided on the top of the mounting block 2, and the fixing part 10 is provided with a guide hole and a fixing hole. The top of the guide rod 9 passes through the guide hole, and the fixing part 10 is bolted to the mounting block 2 through the fixing hole; the guide rod 9 moves up and down in the guide hole and the fixed bearing. By setting the fixing part 10, the up and down movement of the guide rod 9 can be made more stable.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A clamping device, characterized in that: include: Support plate, mounting block, fixing block, pushing member, moving plate and screw motor; The mounting block is fixedly arranged on the top of the support plate, the lead screw motor is fixed on the top of the mounting block, the movable plate is arranged below the mounting block, the movable plate is provided with a lead screw nut, and the lead screw of the lead screw motor is connected to the lead screw nut; the bottom of the movable plate is fixedly connected to the top of the pusher; The fixing block is fixedly arranged at the bottom of the support plate, and the fixing block is provided with a through hole and a T-shaped hole. The bottom of the pushing member is arranged in the through hole, one end of the bottom of the T-shaped hole is connected with the through hole, and the other end of the bottom of the T-shaped hole is connected with the outside of the fixing block; a clamping slider is provided at the bottom of the T-shaped hole, a screw is provided in the T-shaped hole, and the clamping slider is provided with a U-shaped hole, and the screw passes through the U-shaped hole and is fixedly connected to the bottom of the fixing block.

2. The clamping device according to claim 1, characterized in that: A fixed bearing is fixedly arranged inside the mounting block, and the bottom of the guide rod passes through the fixed bearing and is fixedly connected to the movable plate.

3. The clamping device according to claim 2, characterized in that: The screw nut is arranged at the center of the moving plate.

4. The clamping device according to claim 3, characterized in that: At least two fixed bearings are arranged inside the mounting block, and the fixed bearings are symmetrically arranged on both sides of the screw nut.

5. The clamping device according to claim 1, characterized in that: The pushing member includes a accommodating cavity and a pushing column. The top of the accommodating cavity is fixedly connected to the bottom of the movable plate. The pushing column is fixedly arranged at the bottom of the accommodating cavity. The bottom of the screw of the screw motor passes through the screw nut to the accommodating cavity.

6. The clamping device according to claim 5, characterized in that: The push column is arranged just below the center of the moving plate, and the push column corresponds to the position of the screw nut; the bottom of the push column passes through the through hole to push the clamping slider, so that the clamping slider moves outward.

7. The clamping device according to claim 6, characterized in that: The push column is perpendicular to the fixed block, the push column is coaxial with the screw of the screw motor, and the screw of the screw motor is perpendicular to the moving plate.

8. The clamping device according to claim 1, characterized in that: The fixing block is provided with at least three T-shaped holes, and the T-shaped holes are evenly arranged outside the through hole.

9. The clamping device according to claim 1, characterized in that: A first threaded hole is provided on the side of the fixing block, and a second threaded hole corresponding to the first threaded hole is provided on the bottom of the support plate. The fixing block is fixed to the bottom of the support plate by connecting the first threaded hole and the second threaded hole with screws.

10. The clamping device according to claim 2, characterized in that: A fixing piece is provided on the top of the mounting block. The fixing piece is provided with a guide hole and a fixing hole. The top of the guide rod passes through the guide hole. The fixing piece is connected to the mounting block with bolts through the fixing hole.

Images