Positioning tool for evaporator detection

Abstract

The utility model discloses a positioning tool for evaporator detection, which belongs to the field of evaporator positioning tools, and is characterized in that a fixed frame is mounted on one side of an outer frame consisting of outer sliding frames and outer side frames, an inner sliding frame is connected inside the two outer sliding frames through pulleys, a movable head is mounted on the inner sliding frame, a fixed head is mounted on the fixed frame, and the movable head and the fixed head are connected through pulleys. A hydraulic cylinder is connected between the movable head and the fixed head, and an evaporator detection positioning area is arranged between the inner sliding frame and the outer side frame on one side. By means of connection of the inner sliding frame and the outer sliding frame and driving of the hydraulic cylinder, accurate adjustment and positioning of the evaporator are achieved. According to the design, the flexibility and accuracy of positioning are improved, the stability of the evaporator in the detection process is ensured, and guarantee is provided for accurate detection. The arrangement of the positioning buffer heads further improves the positioning accuracy and reliability, and through the cooperation of the first positioning buffer head and the second positioning buffer head, the multi-point positioning is realized, and the evaporator is effectively prevented from sliding or shifting in the detection process.

Description

Technical Field

[0001] This utility model relates to the field of evaporator positioning fixtures, and in particular to a positioning fixture for evaporator testing. Background Technology

[0002] Evaporator performance, safety, and compliance testing encompasses a series of tests conducted on the equipment. Evaporators, as devices, concentrate liquids through heating or depressurization, and are widely used in chemical, food, and pharmaceutical industries, primarily for solvent or water removal. Testing services cover industrial production line equipment, small laboratory evaporators, and medical sterilization equipment, aiming to ensure the performance, safety, and compliance of these devices. Positioning fixtures play a crucial role in evaporator testing, ensuring the stability and accuracy of the testing process. Taking the positioning fixture in an evaporator tube expansion processing unit as an example, its structure includes a positioning tube, support rod, lifting plate, positioning screw, and positioning nut. In practical applications, adjusting the positioning nut changes the height of the support rod to support the tube expander body, thus ensuring the stability of the tube expansion process.

[0003] Current positioning fixtures for evaporator testing primarily employ guide rails, hydraulic clamping systems, or clamping systems to secure the evaporator in practical applications, resulting in relatively complex mechanisms. These systems typically contain multiple precision components and linkages, increasing both manufacturing costs and the difficulty of maintenance. If any component malfunctions, troubleshooting and repair may take a considerable amount of time, disrupting the testing process.

[0004] Furthermore, this complex fixing mechanism has limited applicability to evaporator specifications. Because evaporators of different specifications vary in size, shape, and weight, existing positioning fixtures often can only inspect a specific range of evaporators. When inspecting evaporators of different specifications, it may be necessary to replace the entire positioning fixture or perform tedious adjustments, which not only reduces work efficiency but also increases operational difficulty and cost.

[0005] A significant drawback of current positioning fixtures is their inability to accommodate the testing of evaporators of various sizes. As the automotive industry continues to evolve, evaporator design and manufacturing are becoming increasingly diverse, placing higher demands on positioning fixtures for testing. However, existing positioning fixtures often lack sufficient flexibility and versatility in their design, making it difficult to meet the testing needs of evaporators of various sizes. This not only limits the scope of testing work but also affects the accuracy and reliability of the test results. Utility Model Content

[0006] The main objective of this invention is to provide a positioning fixture for evaporator testing, 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 fixture for evaporator testing includes an outer frame and an outer slide, wherein two outer slides and two outer frames form an outer frame.

[0009] A fixed frame is installed on one side of the outer frame consisting of the outer slide and the outer frame. The two outer slides are connected to an inner sliding frame by pulleys. A movable head is installed on the inner sliding frame, and a fixed head is installed on the fixed frame. A hydraulic cylinder is connected between the movable head and the fixed head. The area between the inner sliding frame and one side of the outer frame is the evaporator detection and positioning area. The hydraulic cylinder drives the inner sliding frame to move along the outer slide, thereby adjusting the space of the evaporator detection and positioning area. The evaporator to be detected is positioned by sliding the inner sliding frame.

[0010] A second positioning buffer head is installed on the inner sliding frame, and a first positioning buffer head adapted to the second positioning buffer head is installed on the outer frame. The first positioning buffer head and the second positioning buffer head are used to realize multi-point positioning of the evaporator to be tested in the evaporator detection and positioning area.

[0011] As a preferred embodiment of this utility model, a plurality of second positioning components are installed on the inner sliding frame, a plurality of first positioning components are installed on the outer slide, and a lateral support is provided at the outer end of the first positioning component. An electric push rod is installed on the lateral support, and the electric push rod realizes the connection between the first positioning component and the second positioning component.

[0012] As a preferred embodiment of this utility model, the first positioning component includes a base and a positioning hole. The positioning hole is located on the end face of the base and has a flared opening. The base is bolted to the inner sliding frame. The second positioning component includes a base, a positioning hole, and a positioning post. The positioning post is bolted to the telescopic end of the electric push rod. The positioning hole is located on the end face of the base and is bolted to the outer slide. The electric push rod drives the positioning post to move, causing it to insert into the positioning hole of the first positioning component, thereby fixing the inner sliding frame and the outer slide.

[0013] As a preferred embodiment of this utility model, both the first positioning buffer head and the second positioning buffer head include a base tube, a buffer limiting rod, a positioning end, and a buffer spring. The buffer limiting rod extends into the limiting hole of the base tube and is confined within the base tube. The buffer spring is located at the inner end of the buffer limiting rod and is placed in the limiting hole of the base tube, thereby enabling the buffer limiting rod to move within the base tube. The positioning end is located at the end of the buffer limiting rod, and anti-slip pads are bonded to the surfaces of the positioning end and the buffer limiting rod.

[0014] As a preferred solution of the present utility model, the outer sliding frame and the outer side frame are designed in a "mouth" shape, and a chute is provided on the inner wall of the outer sliding frame. The pulley is restricted in the chute, and the pulley is installed on the inner sliding frame through a rotating shaft. The outer side frame and the outer sliding frame are fixed by bolts to close the opening of the chute;

[0015] As a preferred solution of the present utility model, the cross-section of the fixing frame is designed in an inverted "U" shape. The fixing frame is fixed to the outer sliding frame by bolts. The fixing head is fixed to the fixing frame by bolts, and the movable head is fixed to the inner sliding frame by bolts. The movable head is fixed to the telescopic end of the hydraulic cylinder by bolts.

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

[0017] Through the sliding connection between the inner sliding frame and the outer sliding frame and the drive of the hydraulic cylinder, precise adjustment and positioning of the evaporator to be detected are achieved. This design not only improves the flexibility and accuracy of positioning but also ensures the stability of the evaporator during the detection process, providing a reliable guarantee for subsequent precise detection.

[0018] The setting of the positioning buffer head further enhances the accuracy and reliability of positioning. The first positioning buffer head and the second positioning buffer head cooperate with each other to achieve the multi-point positioning function within the detection and positioning area of the evaporator, effectively preventing the sliding or offset of the evaporator during the detection process, thereby ensuring the accuracy and reliability of the detection results.

[0019] The design of the clamping mechanism also fully considers stability and reliability. Through the cooperation of the first positioning member and the second positioning member driven by the electric push rod, the inner sliding frame and the outer sliding frame are fixed. This design not only enhances the stability of the overall structure but also makes the positioning process more convenient and efficient. At the same time, the anti-slip gasket and buffer spring on the positioning member and other designs also further improve the positioning accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a top view of the overall structure of the present utility model;

[0022] Figure 3 is a side view of the overall structure of the present utility model;

[0023] Figure 4 is a diagram showing the inner sliding frame, positioning member, and electric push rod of the present utility model;

[0024] Figure 5 is Figure 4 the enlarged schematic diagram at A in

[0025] In the diagram: 1. Outer frame; 2. Outer slide; 3. Fixed frame; 4. Inner sliding frame; 5. Hydraulic cylinder; 6. Movable head; 7. Fixed head; 8. Pulley; 9. Lateral support; 10. Electric push rod; 11. First positioning component; 12. Second positioning component; 13. Evaporator detection and positioning area; 14. First positioning buffer head; 15. Second positioning buffer head. Detailed Implementation

[0026] 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.

[0027] like Figure 1 - Figure 5 As shown, a positioning fixture for evaporator testing mainly consists of an outer frame 1 and an outer slide 2, which together form a robust outer frame structure. A fixed frame 3 is installed on one side of the outer frame, providing a stable support point. Simultaneously, the two outer slides 2 are connected to each other via internal pulleys 8, forming an inner sliding frame 4. The inner sliding frame 4 is equipped with a movable head 6, while the fixed frame 3 is equipped with a fixed head 7. Driven by a hydraulic cylinder 5, the movable head 6 and the fixed head 7 can move relative to each other, thereby adjusting the spatial position of the evaporator testing positioning area 13. This design allows for precise positioning of the evaporator to be tested through the sliding of the inner sliding frame 4.

[0028] To further improve positioning accuracy, a second positioning buffer head 15 is installed on the inner sliding frame 4, while a matching first positioning buffer head 14 is equipped on the outer frame 1. These two positioning buffer heads work together to achieve multi-point positioning of the evaporator to be tested within the evaporator detection positioning area 13, ensuring the accuracy and reliability of the detection.

[0029] In addition, the inner sliding frame 4 is equipped with multiple second positioning elements 12, while the outer slide 2 is equipped with multiple first positioning elements 11. Each first positioning element 11 has a lateral support 9 at its outer end, and an electric push rod 10 is mounted on the lateral support 9. The function of the electric push rod 10 is to connect the first positioning elements 11 and the second positioning elements 12, and through its pushing and pulling action, the positioning elements can cooperate with each other to fix the positions of the inner sliding frame 4 and the outer slide 2.

[0030] Each first positioning element 11 includes a base and a positioning hole. The positioning hole is located on the end face of the base and has an opening designed in a flared shape. The base is bolted to the inner sliding frame 4. Each second positioning element 12 includes a base, a positioning hole, and a positioning post. The positioning post is bolted to the telescopic end of the electric push rod 10. The positioning hole is also located on the end face of the base and is bolted to the outer slide 2. The movement of the electric push rod 10 causes the positioning post to extend or retract, allowing it to insert into the positioning hole of the first positioning element 11, thereby fixing the inner sliding frame 4 and the outer slide 2.

[0031] To improve the cushioning effect during the positioning process, both the first positioning buffer head 14 and the second positioning buffer head 15 adopt the same structural design. They include a base tube, a buffer limiting rod, a positioning end, and a buffer spring. The buffer limiting rod extends into the limiting hole of the base tube and is confined within the base tube. The buffer spring is located at the inner end of the buffer limiting rod and is placed in the limiting hole of the base tube, ensuring that the buffer limiting rod can move freely within the base tube. The positioning end is located at the end of the buffer limiting rod, and anti-slip pads are bonded to the surfaces of the positioning end and the buffer limiting rod to increase friction and prevent slippage.

[0032] The outer slide 2 and outer frame 1 are designed in a "U" shape, which is not only aesthetically pleasing but also structurally stable. The inner wall of the outer slide 2 has a groove, within which the pulley 8 is confined to ensure stability during sliding. The pulley 8 is mounted on the inner sliding frame 4 via a pivot, while the outer frame 1 and outer slide 2 are fixed together with bolts, further sealing the opening of the groove and enhancing the overall structural stability.

[0033] The fixed frame 3 has an inverted "U" shaped cross-section, which not only increases its strength but also provides a larger support area. The fixed frame 3 is bolted to the outer slide 2, while the fixed head 7 is bolted to the fixed frame 3. The movable head 6 is bolted to the inner sliding frame 4, and also bolted to the telescopic end of the hydraulic cylinder 5. This multiple fixing method ensures the stability and reliability of the entire positioning fixture during use.

[0034] The evaporator to be tested is placed in the evaporator testing and positioning area 13, which is formed by the outer slide 2 and the outer frame 1. The hydraulic cylinder 5 is activated, causing the movable head 6 to move towards the fixed head 7, adjusting the spatial position of the evaporator testing and positioning area 13 to ensure that the evaporator is in the correct position. The electric push rod 10 is activated, causing the first positioning member 11 and the second positioning member 12 to cooperate with each other, fixing the position of the inner sliding frame 4 and the outer slide 2 through a push-pull action.

[0035] Multi-point positioning is performed using the second positioning buffer head 15 and the first positioning buffer head 14 to ensure that the evaporator is accurately fixed within the evaporator detection and positioning area 13. The electric push rod 10 on the lateral support 9 is adjusted so that the positioning pin is inserted into the positioning hole of the first positioning member 11, further ensuring the stability of the inner sliding frame 4 and the outer slide 2.

[0036] After ensuring the evaporator is stably positioned, perform the necessary testing. Adjust the positioning components and buffer head based on the test results to optimize positioning accuracy. After completing the test, close hydraulic cylinder 5 and electric push rod 10, returning the movable head 6 and fixed head 7 to their initial positions. Remove the tested evaporator and prepare for the next one to be tested. Regularly check the tightness and operating status of all connections and drive units. Clean the equipment surface to ensure no dust or debris affects positioning accuracy and equipment operation.

[0037] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for evaporator detection, comprising outer side frames (1) and outer slides (2), two of the outer slides (2) and two of the outer side frames (1) forming an outer frame, characterized in that: The outer frame composed of the outer slide frame (2) and the outer side frame (1) is provided with a fixed frame (3) on one side, the interiors of the two outer slide frames (2) are connected with an inner sliding frame (4) through a pulley (8), the inner sliding frame (4) is provided with a movable head (6), the fixed frame (3) is provided with a fixed head (7), a hydraulic cylinder (5) is connected between the movable head (6) and the fixed head (7), and an evaporator detection positioning area (13) is defined between the inner sliding frame (4) and the outer side frame (1) on one side. The inner sliding frame (4) is driven by the hydraulic cylinder (5) to move along the outer slide frame (2), so as to adjust the space of the evaporator detection positioning area (13), and the sliding of the inner sliding frame (4) is used to realize the positioning operation of the evaporator to be detected. The inner sliding frame (4) is provided with a second positioning buffer head (15), the outer side frame (1) is provided with a first positioning buffer head (14) matched with the second positioning buffer head (15), and the first positioning buffer head (14) and the second positioning buffer head (15) are used to realize the multi-point positioning of the evaporator to be detected in the evaporator detection positioning area (13).

2. The positioning tool for evaporator detection according to claim 1, characterized in that: The inner sliding frame (4) is provided with a plurality of second positioning members (12), the outer slide frame (2) is provided with a plurality of first positioning members (11), and the outer end of the first positioning member (11) is provided with a lateral support (9), and the lateral support (9) is provided with an electric push rod (10), and the electric push rod (10) is used to connect the first positioning member (11) and the second positioning member (12).

3. The positioning tool for evaporator detection according to claim 2, characterized in that: The first positioning member (11) comprises a seat body and a positioning hole, the positioning hole is located on the end face of the seat body, the opening of the positioning hole is a flared opening, and the seat body is installed on the inner sliding frame (4) through bolts. The second positioning member (12) comprises a seat body, a positioning hole and a positioning column, the positioning column is installed on the telescopic end of the electric push rod (10) through bolts, the positioning hole is located on the end face of the seat body and is installed on the outer slide frame (2) through bolts, the electric push rod (10) drives the positioning column to move so as to be inserted into the positioning hole of the first positioning member (11), and the inner sliding frame (4) and the outer slide frame (2) are fixed.

4. The positioning tool for evaporator detection according to claim 1 or 3, characterized in that: The first positioning buffer head (14) and the second positioning buffer head (15) each comprise a base pipe, a buffer limiting rod, a positioning end and a buffer spring, the buffer limiting rod extends into the limiting hole of the base pipe and is limited in the base pipe, the buffer spring is located at the inner end of the buffer limiting rod and is placed in the limiting hole of the base pipe, the buffer limiting rod moves in the base pipe, the positioning end is located at the end of the buffer limiting rod, and the surface of the positioning end and the buffer limiting rod is bonded with a non-slip pad.

5. The positioning tool for evaporator detection according to claim 4, characterized in that: The outer slide frame (2) and the outer side frame (1) are designed in a "mouth" shape, the inner wall of the outer slide frame (2) is provided with a sliding groove, the pulley (8) is limited in the sliding groove, the pulley (8) is installed on the inner sliding frame (4) through a rotating shaft, and the outer side frame (1) and the outer slide frame (2) are fixed through bolts, so as to realize the closure of the opening of the sliding groove.

6. The positioning tool for evaporator detection according to claim 5, characterized in that: The cross section of the fixed frame (3) is designed as an inverted "U" shape. The fixed frame (3) is fixed with the outer sliding frame (2) through bolts. The fixed head (7) is fixed with the fixed frame (3) through bolts. The movable head (6) is fixed with the inner sliding frame (4) through bolts. The movable head (6) is fixed with the telescopic end of the hydraulic cylinder (5) through bolts.

Images