Convection column length cutting clamp

Abstract

The utility model discloses a convection column length cutting clamp, and particularly relates to the technical field of convection column production, the convection column length cutting clamp comprises a base, support plates are symmetrically arranged at the top of the base, clamping assemblies are symmetrically arranged on the opposite inner walls of the support plates, sliding grooves are symmetrically formed in the top of the base, and a two-way screw rod and a first sliding rod are respectively arranged in the two sliding grooves. The clamping assembly is matched with the bidirectional lead screw, the first sliding rod, the first motor and the second sliding rod for use, so that the clamping device can be matched with glass tubes with different lengths and diameters for clamping and fixing, the application range of the clamping device is expanded, and the clamping device is convenient to use; by matching with the supporting mechanism, the supporting table can be adjusted to the cutting position according to needs and supports a workpiece, the stability in the cutting process is improved, the influence on the cutting effect and quality is avoided, meanwhile, dust generated by cutting can be sucked and collected, and the practicability is higher; according to the utility model, the graduated scale is matched with the pointer I and the pointer II, so that the length and the cutting length of a workpiece can be intuitively known.

Description

Technical Field

[0001] This utility model relates to the field of convection column production technology, specifically a convection column length cutting fixture. Background Technology

[0002] Chromatographic columns are essential tools in laboratories and pilot-scale and large-scale production in biochemistry, chemical analysis, disease diagnosis, and pharmaceutical manufacturing. They are commonly used in chemical separation techniques for purifying, separating, extracting, and enriching target substances. Their structure resembles a tube, filled with a material called the stationary phase, used to separate mixtures of different components. Chromatographic columns can be classified into various types based on the packing material, including but not limited to reversed-phase chromatography, ion-exchange chromatography, and gel chromatography. Gel chromatography involves convective chromatography columns, which are typically made of glass or plexiglass tubes. This chromatographic method separates components in a sample mixture based on their different partition coefficients in the stationary and mobile phases.

[0003] Currently, the production and processing of convective chromatography columns requires the use of cutting equipment to cut the glass tube to its length. During cutting, clamps are needed to hold and fix the glass tube, usually using clamps with arc-shaped notches. However, this method is generally only suitable for holding and fixing glass tubes of a single size. In addition, after the glass tube is clamped and fixed, except for the two ends, the rest of the glass tube is usually in a suspended state. In this situation, due to the lack of a supporting structure below, the glass tube is prone to movement, resulting in poor stability, affecting the cutting quality, inconvenience in use, and poor practicality. Utility Model Content

[0004] The purpose of this invention is to provide a convection column length cutting fixture to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a convection column length cutting fixture, including a base, a support plate symmetrically provided on the top of the base, a clamping assembly symmetrically provided on the inner wall of the support plate, a sliding groove symmetrically provided on the top of the base, a bidirectional lead screw and a sliding rod 1 respectively provided in the two sliding grooves, and both ends of the bidirectional lead screw are rotatably connected to the inner wall of the sliding groove, a motor 1 connected to one end of the bidirectional lead screw outside the base, a connecting block symmetrically provided on the outer wall of the support plate, one end of the upper connecting block is slidably sleeved on the outside of the sliding rod 1, and one end of the lower connecting block is sleeved on the outside of the bidirectional lead screw, and the connecting block is movably connected to the bidirectional lead screw, an adjustment groove is opened on the top of the base, and a support mechanism is provided in the adjustment groove, the support mechanism including a support platform, and the support platform is set in the adjustment groove, a screw and a sliding rod 2 are symmetrically provided in the adjustment groove, and the screw is rotatably connected to the inner wall of the adjustment groove.

[0006] Furthermore, the support mechanism also includes a second motor. A groove is provided at one end of the base, and the second motor is fixedly installed within the groove. The output end of the second motor is fixedly connected to a screw. A hydraulic cylinder is fixedly connected to the bottom of the support platform. A bracket is fitted onto the lower outer wall of the hydraulic cylinder. Moving blocks are fitted onto corresponding positions on the outer walls of the screw and the second sliding rod. The moving block on the left is threadedly connected to the screw, and the moving block on the right is slidably connected to the second sliding rod. Both second sliding rods are fixedly connected to one end of the bracket. A cutting groove and an arc groove are provided on the top of the support platform, and the cutting groove and the arc groove are perpendicular to each other. An installation groove communicating with the cutting groove is provided on one side of the support platform. A collection frame is movably installed in the installation groove, and a filter screen is fixedly installed on the lower inner side of the collection frame. Air ducts communicating with the installation groove are provided symmetrically at the bottom of the support platform. A fan is installed in each air duct. The support mechanism allows the support platform to support the glass tube during cutting, making it more stable during cutting. It can also absorb and collect dust generated during cutting, and the position of the support platform can be adjusted according to the cutting position.

[0007] Furthermore, the clamping assembly includes a clamping seat, which is embedded and installed on the corresponding positions of the inner wall of the support plate. A guide rod is fixedly installed on one side of the clamping seat, and sliders are movably sleeved on the outer wall of the guide rod at symmetrical positions. One end of the slider is connected to a clamping block outside the clamping seat. One end of the clamping seat is symmetrically provided with grooves that are adapted to the sliders. A telescopic rod is fixedly installed on the side of the clamping seat away from the guide rod. The telescopic end of the telescopic rod is movably connected to the sliders through several connecting rods. The clamping assembly can be adapted to clamp and fix glass tubes of different diameters and sizes, and has a wide range of applications.

[0008] Furthermore, a scale is provided on one side of the top of the base, a pointer is fixedly installed at the middle of one end of the support platform, and a pointer is provided at the inner end of each of the two clamping seats, so as to determine the cutting length according to the scale value on the scale corresponding to the pointer.

[0009] Furthermore, the collection frame and the support platform are connected by magnetic attraction, and a sealing layer is provided between the collection frame and the inner wall of the mounting groove. The connecting block is L-shaped to fix the collection frame and facilitate its disassembly.

[0010] Furthermore, the clamping seat is a T-shaped hollow cylindrical structure, the two ends of the connecting rod are respectively hinged to the telescopic end of the telescopic rod and the slider, the clamping block is arc-shaped, and the guide rod is human-shaped to transmit power and synchronously drive multiple clamping blocks to move in a relatively inward or outward direction.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] 1. This utility model, through the use of a clamping assembly in conjunction with a bidirectional lead screw, slide bar one, motor one, and slide bar two, can be adapted to clamp and fix glass tubes of different lengths and diameters, expanding its application range and making it convenient to use; in conjunction with a support mechanism, the support table can be adjusted to the cutting position as needed to support the workpiece, improving the stability during the cutting process and avoiding affecting the cutting effect and quality, while also being able to extract and collect the dust generated during cutting, making it more practical;

[0013] 2. This utility model uses a ruler in conjunction with pointer one and pointer two to allow for a direct understanding of the workpiece length and cutting length. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a utility model Figure 1 A magnified structural diagram of A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the support platform, hydraulic cylinder, screw, and slide rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the clamping base of this utility model;

[0020] In the diagram: 1. Base; 2. Support plate; 3. Clamping seat; 4. Telescopic rod; 5. Guide rod; 6. Slider; 7. Connecting rod; 8. Clamping block; 9. Two-way lead screw; 10. Slide rod one; 11. Motor one; 12. Connecting block; 13. Support platform; 14. Collection frame; 15. Air duct; 16. Fan; 17. Hydraulic cylinder; 18. Bracket; 19. Screw; 20. Slide rod two; 21. Moving block; 22. Motor two; 23. Scale. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 - Figure 5 The convection column length cutting fixture shown includes a base 1, with a support plate 2 symmetrically arranged on the top of the base 1. A clamping assembly is symmetrically arranged on the inner wall of the support plate 2. A sliding groove is symmetrically arranged on the top of the base 1, with a bidirectional lead screw 9 and a sliding rod 10 respectively arranged in the two sliding grooves. Both ends of the bidirectional lead screw 9 are rotatably connected to the inner wall of the sliding groove. One end of the bidirectional lead screw 9 is connected to a motor 11 outside the base 1. Connecting blocks 12 are symmetrically arranged on the outer wall of the support plate 2. One end of the upper connecting block 12 is slidably sleeved on the outside of the sliding rod 10, and one end of the lower connecting block 12 is sleeved on the outside of the bidirectional lead screw 9. The connecting blocks 12 and the bidirectional lead screw 9 are movably connected. An adjustment groove is opened on the top of the base 1, and a support mechanism is provided within the adjustment groove. The support mechanism includes a support platform 13, which is located within the adjustment groove. A screw 19 and a sliding rod 20 are symmetrically arranged within the adjustment groove, and the screw 19 is rotatably connected to the inner wall of the adjustment groove. In this example, the support mechanism also includes a second motor 22. A groove is provided at one end of the base 1, and the second motor 22 is fixedly installed in the groove. The output end of the second motor 22 is fixedly connected to the screw 19. A hydraulic cylinder 17 is fixedly connected to the bottom of the support platform 13. A bracket 18 is fitted onto the lower outer wall of the hydraulic cylinder 17. Moving blocks 21 are fitted onto the corresponding positions of the outer walls of the screw 19 and the second sliding rod 20. The left moving block 21 is threadedly connected to the screw 19, and the right moving block 21 is slidably connected to the second sliding rod 20. Both second sliding rods 20 are fixedly connected to one end of the bracket 18. A groove is provided at the top of the support platform 13. The support platform 13 has a cutting groove and an arc groove, which are perpendicular to each other. A mounting groove communicating with the cutting groove is provided on one side of the support platform 13. A collection frame 14 is movably installed in the mounting groove, and a filter screen is fixedly installed on the lower inner side of the collection frame 14. Air ducts 15 communicating with the mounting groove are provided symmetrically at the bottom of the support platform 13. A fan 16 is installed in the air duct 15. The support mechanism can support the glass tube with the support platform 13 during cutting, so that it is more stable during cutting. It can also absorb and collect the dust generated during cutting. At the same time, the position of the support platform 13 can be adjusted according to the cutting position. In this example, the clamping assembly includes a clamping seat 3, which is embedded in the corresponding position of the inner wall of the support plate 2. A guide rod 5 is fixedly installed on one side of the clamping seat 3. Slider 6 is movably sleeved at symmetrical positions on the outer wall of the guide rod 5. One end of the slider 6 is connected to a clamping block 8 outside the clamping seat 3. One end of the clamping seat 3 is symmetrically provided with rail grooves that are adapted to the slider 6. A telescopic rod 4 is fixedly installed on the side of the clamping seat 3 away from the guide rod 5. The telescopic end of the telescopic rod 4 is movably connected to the slider 6 through several connecting rods 7. The clamping assembly can be adapted to clamp and fix glass tubes of different diameters and sizes, and has a wide range of applications.

[0023] In this example, a scale 23 is provided on one side of the top of the base 1, and a pointer 1 is fixedly installed at the middle of one end of the support platform 13. Two pointers are provided on the opposite inner ends of the two pointers, so that the cutting length can be determined according to the scale value on the scale 23 corresponding to the pointers. In this example, the collection frame 14 is magnetically connected to the support platform 13, and a sealing layer is provided between the collection frame 14 and the inner wall of the mounting groove. The connecting block 12 is L-shaped to fix the collection frame 14 and facilitate its disassembly. In this example, the clamping seat 3 is a T-shaped hollow cylindrical structure. The two ends of the connecting rod 7 are hinged to the telescopic end of the telescopic rod 4 and the slider 6, respectively. The clamping block 8 is arc-shaped, and the guide rod 5 has a human-shaped structure to transmit power and synchronously drive multiple clamping blocks 8 to move in opposite inner or outer directions.

[0024] The working principle of this utility model is as follows: In use, the pipe fitting to be clamped and fixed is placed in the arc groove on the support platform 13 for support. Then, motor 11 is started to drive the bidirectional lead screw 9 to rotate, causing the bidirectional lead screw 9 to synchronously drive the two connecting blocks 12 connected to it to move inwards relative to each other. This causes the connecting support plate 2 and the connecting block 12 on the other side to slide on the slide rod 10, causing the two clamping seats 3 to move inwards relative to each other. After they reach the appropriate position, the telescopic rod 4 is started, causing the telescopic end of the telescopic rod 4 to retract, thereby pulling the connecting rod 7 connected to it to drive the slider 6. The slider 6 slides inwards along the guide rod 5, causing the slider 6 to synchronously move the connectable clamping block 8, thereby clamping and fixing the pipe fitting. Then, the cutting position is adjusted according to the required cutting length. Simultaneously, motor 22 is started to drive the screw 19 connected to it to rotate, thereby driving the moving block 21 connected to the screw 19 to move the connected bracket 18 inwards. The support 18 moves forward and backward, while the moving block 21 on the outside of the slide bar 20 slides on the slide bar 20. At the same time, the support 18 drives the hydraulic cylinder 17, which in turn drives the support platform 13 to move synchronously. The support platform 13 drives the connected pointer 1 to move synchronously. According to the scale value on the scale 23 corresponding to pointer 1, the distance between pointer 1 and pointer 2 can be intuitively understood, and the cutting length can be better judged. The motor 22 can be stopped when the support platform 13 is adjusted to the cutting position, so that the glass tube can be cut. At the same time as cutting, the fan 16 is started, so that the dust generated by cutting is sucked into the collection frame 14 through the cutting groove and filtered and intercepted by the filter screen in the collection frame 14. When it is necessary to clean the dust, the support platform 13 can be moved to the outside of the adjustment groove when not processing, and then the collection frame 14 can be pulled out for dust treatment. It is convenient to use and highly practical.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A convection column length cutting fixture, comprising a base (1), characterized in that: The base (1) is symmetrically provided with support plates (2) on its top. The support plates (2) are symmetrically provided with clamping components on their inner walls. The base (1) is symmetrically provided with sliding grooves on its top. Two sliding grooves are respectively provided with a bidirectional lead screw (9) and a sliding rod (10). Both ends of the bidirectional lead screw (9) are rotatably connected to the inner wall of the sliding groove. One end of the bidirectional lead screw (9) is connected to a motor (11) outside the base (1). The outer wall of the support plate (2) is symmetrically provided with connecting blocks (12). One end of the upper connecting block (12) slides... The sliding rod (10) is sleeved on the outside of the sliding rod (10). One end of the connecting block (12) on the lower side is sleeved on the outside of the double-acting screw (9). The connecting block (12) is movably connected to the double-acting screw (9). The top of the base (1) is provided with an adjustment groove, and a support mechanism is provided in the adjustment groove. The support mechanism includes a support platform (13), and the support platform (13) is set in the adjustment groove. The screw (19) and the sliding rod (20) are respectively provided at symmetrical positions in the adjustment groove, and the screw (19) is rotatably connected to the inner wall of the adjustment groove.

2. The convection column length cutting fixture according to claim 1, characterized in that: The support mechanism also includes a second motor (22). A groove is provided at one end of the base (1), and the second motor (22) is fixedly installed in the groove. The output end of the second motor (22) is fixedly connected to the screw (19). A hydraulic cylinder (17) is fixedly connected to the bottom of the support platform (13). A bracket (18) is fitted onto the lower outer wall of the hydraulic cylinder (17). Moving blocks (21) are fitted onto the corresponding positions of the outer walls of the screw (19) and the slide bar (20). The moving block (21) on the left is threadedly connected to the screw (19), and the moving block (21) on the right... 21) Sliding connection with slide rod two (20), both slide rod two (20) are fixedly connected to one end of bracket (18), the top of the support platform (13) is provided with a cutting groove and an arc groove, and the cutting groove and the arc groove are perpendicular to each other, the side of the support platform (13) is provided with an installation groove communicating with the cutting groove, a collection frame (14) is movably installed in the installation groove, and a filter screen is fixedly installed in the lower part of the inner side of the collection frame (14), and air ducts (15) communicating with the installation groove are provided at symmetrical positions at the bottom of the support platform (13), and a fan (16) is provided in the air duct (15).

3. The convection column length cutting fixture according to claim 2, characterized in that: The clamping assembly includes a clamping seat (3), which is embedded in the corresponding position of the inner wall of the support plate (2). A guide rod (5) is fixedly installed on one side of the clamping seat (3). Slider blocks (6) are movably sleeved on the outer wall of the guide rod (5). One end of the slider (6) is connected to a clamping block (8) outside the clamping seat (3). A groove adapted to the slider (6) is symmetrically opened on one end of the clamping seat (3). A telescopic rod (4) is fixedly installed on the side of the clamping seat (3) away from the guide rod (5). The telescopic end of the telescopic rod (4) is movably connected to the slider (6) through several connecting rods (7).

4. A convection column length cutting fixture according to claim 3, characterized in that: The base (1) has a scale (23) on one side of its top, and a pointer is fixedly installed at the middle of one end of the support platform (13). The two clamping seats (3) each have a pointer on one of their opposite inner sides.

5. A convection column length cutting fixture according to claim 2, characterized in that: The collection frame (14) and the support platform (13) are connected by magnetic attraction, and a sealing layer is provided between the collection frame (14) and the inner wall of the mounting groove. The connecting block (12) is L-shaped.

6. A convection column length cutting fixture according to claim 3, characterized in that: The clamping seat (3) is a T-shaped hollow cylindrical structure. The two ends of the connecting rod (7) are respectively hinged to the telescopic end of the telescopic rod (4) and the slider (6). The clamping block (8) is arc-shaped, and the guide rod (5) is human-shaped.

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