Positioning device for melting point instrument

Abstract

The utility model discloses a positioning device for a melting point instrument, which belongs to the technical field of melting point instrument positioning and is characterized in that the upper end of a movable material containing table is connected with a first telescopic device through a fixing block, the first telescopic device is connected with a positioning clamp through an angle adjusting support, and the outer end of the positioning clamp is connected with a positioning end through a rotating piece; a second telescopic device connected with the positioning end is arranged at the lower end of the positioning clamp. The positioning clamp and the end cooperate to clamp the material, so that the stability and accuracy of melting point testing are ensured. The telescopic device is flexible in cooperation and improves the test efficiency. The angle adjusting support allows adjustment according to requirements, and the adaptability of the device is enhanced. The ball screw and the parallel slide rail are designed to cooperate with the movable material holding table, so that the materials are accurately placed, and the test accuracy is improved. The hydraulic device is accurately adjusted through the height adjusting table to meet different melting point testing requirements, and the practicability and flexibility of the device are enhanced. The connecting side blocks are designed, so that the position of the moving part is flexibly adjusted, and operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of melting point apparatus positioning technology, and in particular to a positioning device for a melting point apparatus. Background Technology

[0002] A melting point apparatus is an instrument designed according to the melting point detection method specified in the pharmacopoeia, used to measure the melting point of substances. The melting point is the temperature at which a substance reaches equilibrium with its solid and liquid states under atmospheric pressure. When a crystalline substance is heated to a certain temperature, the crystal begins to change from a solid to a liquid state; the temperature measured at this point is the melting point of the substance. The melting point apparatus utilizes electronic technology to achieve programmable temperature control and digital display of initial and final melting points. It employs a linearly calibrated platinum resistance thermometer as the detection element and uses electronic circuitry to achieve rapid "starting temperature" setting and multiple selectable linear heating rates. Furthermore, the instrument uses a capillary tube as the sample tube, as specified in the pharmacopoeia, allowing for clear and intuitive observation of the melting process of the sample within the capillary tube through a high-magnification magnifying glass.

[0003] The positioning device for melting point apparatus does present some challenges in practical applications, especially when handling small sample tubes. Due to the small size of the sample tube, when using a single-positioning mechanism to hold the sample tube, the sample tube is prone to shifting at the opening end of the positioning mechanism. This shift leads to inaccurate positioning, thus affecting the accuracy and reliability of melting point determination.

[0004] Specifically, single-positioning mechanisms are typically designed to accommodate a range of sample tube sizes. However, when the sample tube is too small, with a diameter close to or smaller than the tolerance range of the positioning mechanism, the sample tube is prone to slippage or displacement at the open end. This displacement may stem from insufficient clamping force of the positioning mechanism on the small sample tube, or from minor vibrations and wobbling of the sample tube during clamping.

[0005] In addition, factors such as the material, shape, and surface condition of the sample tube can also affect the clamping effect of the positioning mechanism. For example, if there is oil, dust, or scratches on the surface of the sample tube, it may reduce the friction between the positioning mechanism and the sample tube, thereby increasing the risk of displacement. Utility Model Content

[0006] The main objective of this invention is to provide a positioning device for a melting point apparatus, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A positioning device for a melting point apparatus includes a base, a control button, a protective cover, a hydraulic device, a height adjustment platform, and an instrument feeding mechanism. The control button is located at the front end of the base. The hydraulic device is mounted on the base through the protective cover. The instrument feeding mechanism is mounted on the hydraulic device through the height adjustment platform. The height of the instrument feeding mechanism is adjusted by the hydraulic device.

[0009] The machine base is equipped with a ball screw assembly and a slide rail on its inner and outer sides, and a slide groove is provided on the upper side of the machine base. A connecting seat is installed on the moving platform of the ball screw assembly, and a movable material receiving platform is installed on the upper end of the slide rail. The connecting seat and the movable material receiving platform are connected by a connecting side block. The movable material receiving platform is moved along the slide rail by the ball screw assembly.

[0010] The upper end of the movable material holding platform is connected to a first telescopic device via a fixed block, and the first telescopic device is connected to a positioning clamp via an angle adjustment bracket. The outer end of the positioning clamp is connected to a positioning end via a rotating component, and the lower end of the positioning clamp is provided with a second telescopic device connected to the positioning end. The positioning clamp and the positioning end are used to achieve clamping and positioning.

[0011] In a further alternative, the two slide rails are fixed to the machine base by bolts, the ball screw assembly is designed to be parallel to the two slide rails, the ball screw assembly is fixed to the inner wall of the machine base by bolts, and the connecting seat is connected to the movable table of the ball screw assembly by bolts.

[0012] In a further alternative, the connecting side block is fixed to the movable material receiving platform and the connecting seat by bolts, and the connecting side block moves along the sliding groove on the machine base;

[0013] In a further alternative, the base and the protective cover are fixed together by bolts, the hydraulic device is an electric push rod or a hydraulic cylinder, which is fixed to the protective cover by bolts, and the height adjustment platform is fixed to the telescopic end of the hydraulic device by bolts.

[0014] In a further alternative, the fixing block is fixed to the movable material receiving platform by bolts. The angle adjustment bracket includes two brackets and a rotating shaft. The rotating shaft connects the two brackets, one of which is connected to the fixing block and the other is connected to the positioning clamp and the first telescopic device. The first telescopic device extends or retracts to drive the two positioning clamps to expand or retract, thereby realizing the clamping and positioning operation.

[0015] In a further alternative, the second telescopic device is fixed to the lower end of the positioning clamp by bolts, and the side wall of the positioning end is provided with anti-slip pads. The extension and retraction of the second telescopic device drives the positioning end to rotate, thereby further realizing the clamping and positioning operation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The coordinated operation of the positioning clamp and the positioning end head enables precise clamping and positioning of the material, ensuring its stability and accuracy during melting point testing. The cooperation between the first and second telescopic devices makes the positioning operation more flexible and adaptable, improving testing efficiency. The angle adjustment bracket design allows the positioning clamp and positioning end head to be adjusted according to actual needs, further enhancing the adaptability and flexibility of the device.

[0018] The parallel design of the ball screw assembly and slide rails, along with their coordination with the movable material loading platform, enables precise material placement and improves testing accuracy. The hydraulic system, via a height adjustment platform, allows for precise adjustment of the instrument's feeding mechanism height to accommodate different melting point testing requirements, enhancing the device's practicality and flexibility. The design of the connecting side blocks enables flexible position adjustment of the moving parts throughout the device, further improving its adaptability and ease of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the overall structure of this utility model;

[0021] Figure 3 The diagram shows the slide rail, ball screw assembly, connecting side block, movable material receiving platform and positioning clamping mechanism of this utility model.

[0022] Figure 4 This is a diagram illustrating the mobile material receiving platform and positioning clamping mechanism of this utility model.

[0023] In the diagram: 1. Base; 2. Control button; 3. Protective cover; 4. Hydraulic device; 5. Height adjustment platform; 6. Instrument feeding mechanism; 7. Slide rail; 8. Ball screw assembly; 9. Connecting seat; 10. Connecting side block; 11. Movable material receiving platform; 12. Fixing block; 13. First telescopic device; 14. Angle adjustment bracket; 15. Positioning clamp; 16. Positioning end; 17. Second telescopic device. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 4As shown, a positioning device for a melting point apparatus includes a base 1, a control button 2, a protective cover 3, a hydraulic device 4, a height adjustment platform 5, and an instrument feeding mechanism 6. The control button 2 is designed to be installed at the front end of the base 1 for easy operator control. The hydraulic device 4, protected by the protective cover 3, is mounted above the base 1, ensuring the safety and stability of the device. The instrument feeding mechanism 6 is mounted on the hydraulic device 4 via the height adjustment platform 5, allowing for precise height adjustment of the instrument feeding mechanism 6 to accommodate different melting point testing requirements.

[0026] A ball screw assembly 8 and a slide rail 7 are installed inside and outside the machine base 1, respectively. A groove is provided on the upper side of the machine base 1 to facilitate the installation of a connecting seat 9 on the moving platform of the ball screw assembly 8. A movable material receiving platform 11 is installed on the upper end of the slide rail 7, and the connecting seat 9 and the movable material receiving platform 11 are connected by a connecting side block 10. Through precise control of the ball screw assembly 8, the movable material receiving platform 11 can be smoothly moved along the slide rail 7, achieving precise material placement.

[0027] The upper end of the movable material receiving platform 11 is connected to a first telescopic device 13 via a fixed block 12. The first telescopic device 13 is connected to a positioning clamp 15 via an angle adjustment bracket 14, and the outer end of the positioning clamp 15 is connected to a positioning end 16 via a rotating component. The lower end of the positioning clamp 15 is provided with a second telescopic device 17 connected to the positioning end 16. Through the coordinated work of the positioning clamp 15 and the positioning end 16, precise clamping and positioning of materials can be achieved.

[0028] Two slide rails 7 are bolted to the base 1, ensuring their stability and durability. The ball screw assembly 8 has a parallel design with the two slide rails 7, which helps improve the stability and operational accuracy of the device. The ball screw assembly 8 is bolted to the inner wall of the base 1, and the connecting seat 9 is bolted to the moving table of the ball screw assembly 8, ensuring the compactness and integrity of the device.

[0029] The connecting side block 10 is fixed to the movable material receiving platform 11 and the connecting seat 9 by bolts. The connecting side block 10 moves along the sliding groove on the machine base 1. This design allows the moving parts of the entire device to be flexibly adjusted in position. The machine base 1 and the protective cover 3 are fixed to each other by bolts, ensuring the overall stability and safety of the device. The hydraulic device 4 can be an electric push rod or a hydraulic cylinder, which is fixed to the protective cover 3 by bolts. The height adjustment platform 5 is fixed to the telescopic end of the hydraulic device 4 by bolts. This design makes height adjustment more convenient and precise.

[0030] The fixing block 12 is bolted to the movable material receiving platform 11. The angle adjustment bracket 14 includes two brackets and a rotating shaft. The rotating shaft connects the two brackets, one of which is connected to the fixing block 12, and the other is connected to the positioning clamp 15 and the first telescopic device 13. The telescopic movement of the first telescopic device 13 can cause the two positioning clamps 15 to expand or contract, realizing the clamping and positioning operation, and improving the flexibility and adaptability of the device. The second telescopic device 17 is bolted to the lower end of the positioning clamp 15. The side wall of the positioning end 16 is provided with anti-slip pads. The telescopic movement of the second telescopic device 17 causes the positioning end 16 to rotate, further realizing the clamping and positioning operation, and ensuring the stability and accuracy of the material during the melting point test.

[0031] Installation Process: Place the base 1 in the appropriate position. Secure the protective cover 3 to the base 1 with bolts. Install the hydraulic device 4 onto the protective cover 3. Secure the height adjustment platform 5 to the telescopic end of the hydraulic device 4 with bolts. Secure the ball screw assembly 8 to the inner wall of the base 1 with bolts. Secure the slide rail 7 to the base 1 with bolts, ensuring it is parallel to the screw of the ball screw assembly 8. Install the movable material receiving platform 11 onto the slide rail 7. Connect the connecting seat 9 to the movable platform of the ball screw assembly 8 with bolts. Connect the connecting side block 10 to the movable material receiving platform 11 and the connecting seat 9 with bolts. Secure the fixing block 12 to the movable material receiving platform 11 with bolts. Connect the first telescopic device 13 to the fixing block 12 via the angle adjustment bracket 14. Connect the positioning clamp 15 to the first telescopic device 13. Connect the positioning end 16 to the outer end of the positioning clamp 15 via a rotating component. Secure the second telescopic device 17 to the lower end of the positioning clamp 15 with bolts. Confirm that all bolts are securely connected. Conduct initial debugging to ensure that all components move smoothly and are positioned accurately.

[0032] In use: Place the material to be tested on the movable loading platform 11. Use control button 2 to operate the hydraulic device 4 and adjust the height of the height adjustment platform 5 to accommodate different melting point testing requirements. Control the movable loading platform 11 to move along the slide rail 7 via the ball screw assembly 8 to achieve precise material placement. Operate the first telescopic device 13 and the second telescopic device 17 to adjust the positioning clamp 15 and the positioning end 16 to achieve precise clamping and positioning of the material. Start the melting point apparatus to perform the melting point test. Adjust the material position or re-clamp the material according to the test results to ensure test accuracy. After the test is completed, release the positioning clamp 15 and the positioning end 16 and remove the material. Clean the equipment to ensure no material residue remains. Regularly check the bolt connections for tightness. Clean the slide rail 7 and the ball screw assembly 8 to ensure smooth movement. Check the hydraulic device 4 and the electrical system to ensure they are working properly.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A positioning device for a melting point apparatus, comprising a base (1), a control button (2), a protective cover (3), a hydraulic device (4), a height adjustment platform (5), and an instrument feeding mechanism (6), wherein the control button (2) is located at the front end of the base (1), the hydraulic device (4) is mounted on the base (1) through the protective cover (3), and the instrument feeding mechanism (6) is mounted on the hydraulic device (4) through the height adjustment platform (5), and the height of the instrument feeding mechanism (6) is adjusted by the hydraulic device (4), characterized in that: The machine base (1) is equipped with a ball screw assembly (8) and a slide rail (7) on its inner and outer sides respectively. A slide groove is provided on the upper side of the machine base (1). A connecting seat (9) is installed on the moving platform of the ball screw assembly (8). A movable material holding platform (11) is installed on the upper end of the slide rail (7). The connecting seat (9) and the movable material holding platform (11) are connected by a connecting side block (10). The movable material holding platform (11) is moved along the slide rail (7) by the ball screw assembly (8). The upper end of the mobile material holding platform (11) is connected to a first telescopic device (13) via a fixed block (12), and the first telescopic device (13) is connected to a positioning clamp (15) via an angle adjustment bracket (14). The outer end of the positioning clamp (15) is connected to a positioning end (16) via a rotating component. The lower end of the positioning clamp (15) is provided with a second telescopic device (17) connected to the positioning end (16). The positioning clamp (15) and the positioning end (16) are used to achieve clamping and positioning.

2. The positioning device for a melting point apparatus according to claim 1, characterized in that: The two slide rails (7) are fixed to the machine base (1) by bolts. The screw of the ball screw assembly (8) is designed to be parallel to the two slide rails (7). The ball screw assembly (8) is fixed to the inner wall of the machine base (1) by bolts. The connecting seat (9) is connected to the moving table of the ball screw assembly (8) by bolts.

3. The positioning device for a melting point apparatus according to claim 2, characterized in that: The connecting side block (10) is fixed to the movable material receiving platform (11) and the connecting seat (9) by bolts, and the connecting side block (10) moves along the slide groove on the machine base (1).

4. A positioning device for a melting point apparatus according to claim 3, characterized in that: The base (1) and the protective cover (3) are fixed by bolts. The hydraulic device (4) is an electric push rod or a hydraulic cylinder, which is fixed to the protective cover (3) by bolts. The height adjustment platform (5) is fixed to the telescopic end of the hydraulic device (4) by bolts.

5. A positioning device for a melting point apparatus according to claim 4, characterized in that: The fixed block (12) is fixed to the movable material holding platform (11) by bolts. The angle adjustment bracket (14) includes two brackets and a rotating shaft. The rotating shaft connects the two brackets. One of them is connected to the fixed block (12), and the other is connected to the positioning clamp (15) and the first telescopic device (13). The first telescopic device (13) extends and retracts to drive the two positioning clamps (15) to expand or contract, thereby realizing the clamping and positioning operation.

6. A positioning device for a melting point apparatus according to claim 5, characterized in that: The second telescopic device (17) is fixed to the lower end of the positioning clamp (15) by bolts. The side wall of the positioning end (16) is provided with anti-slip pads. The second telescopic device (17) extends and retracts to drive the positioning end (16) to rotate, further realizing the clamping and positioning operation.

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