A compressor pneumatic pump pressure detection tool

Abstract

The utility model provides a kind of compressor pneumatic pump pressure detection tool, the pneumatic pump module includes first pressure sensor, hits into component, pneumatic pump assembly, multiple guide rods and multiple springs;The first end of the guide rod is fixedly connected with the hit into component, the second end of the guide rod sequentially passes through the pneumatic pump assembly and the spring, and makes the both ends of the spring respectively abut on the pneumatic pump assembly and the second end of the guide rod;The first pressure sensor is located between the hit into component and the pneumatic pump assembly, and is fixedly connected on the pneumatic pump assembly;In normal state, the hit into component is not contacted with the first pressure sensor, in operation, the hit into component is stressed and contacted with the first pressure sensor;The utility model can accurately detect the output force of pneumatic pump, prevent overpressure and blow cylinder body, effectively improve product yield.

Description

Technical Field

[0001] This utility model belongs to the field of compressor testing technology, specifically relating to a pressure testing fixture for a compressor pneumatic pump. Background Technology

[0002] The assembly of the compressor cylinder and copper tubing is a critical process in the production of refrigeration equipment, directly affecting the equipment's sealing performance, refrigeration efficiency, and operational stability.

[0003] In existing technology, when assembling the cylinder body and copper tube, the copper tube is first fitted onto the injection component of the pneumatic pump module. The pneumatic pump generates pressure to inject the copper tube into the cylinder body. However, in practical applications, it has been found that the actual output force of the pneumatic pump cannot be monitored in real time. Fluctuations in air pressure and tight fit between the copper tube and the cylinder body hole can result in a large injection force, which can cause the cylinder body to burst. This can then flow into subsequent processes, causing the entire machine to be scrapped, resulting in a high defect rate. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides a pressure detection fixture for a compressor pneumatic pump, which can accurately detect the output force of the pneumatic pump, prevent excessive pressure from causing the cylinder to explode, and effectively improve product yield.

[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a pressure testing fixture for a compressor pneumatic pump, including a base plate, a positioning module, and a pneumatic pump module; The positioning module and the pneumatic pump module are disposed opposite to each other at both ends of the base plate. The positioning module is used for positioning the cylinder body, and the pneumatic pump module is used for driving the copper tube into the cylinder body. The pneumatic pump module includes a first pressure sensor, an injection assembly, a pneumatic pump assembly, multiple guide rods, and multiple springs; The first end of the guide rod is fixedly connected to the driving assembly, and the second end of the guide rod passes through the pneumatic pump assembly and the spring in sequence, with the two ends of the spring respectively abutting against the pneumatic pump assembly and the second end of the guide rod; The first pressure sensor is located between the injection component and the pneumatic pump component, and is fixedly connected to the pneumatic pump component; Under normal conditions, the injection component does not contact the first pressure sensor. During operation, the injection component is subjected to force and comes into contact with the first pressure sensor.

[0006] In some implementations, the insertion component includes an insertion head and a first mounting plate; The driving head is disposed on the first mounting plate, and the first end of the guide rod is fixedly connected to the first mounting plate; The driving head is used to fit a copper tube. The first mounting plate enables the installation and transmission of the driving head and guide rod, and the driving head fits the copper tube to accurately assemble the copper tube into the hole of the cylinder.

[0007] In some implementations, the pneumatic pump assembly includes a pneumatic pump connecting rod and a second mounting plate; The pneumatic pump connecting rod and the first pressure sensor are mounted on the second mounting plate. One end of the spring abuts against the second mounting plate. The second mounting plate enables the installation and transmission of the pneumatic pump connecting rod, and facilitates the spring to exert a pre-tightening force on the second mounting plate, which in turn exerts a pre-tightening force on the first pressure sensor.

[0008] In some implementations, the pneumatic pump connecting rod is provided with a handle, which makes it convenient for the operator to push the pneumatic pump connecting rod when needed.

[0009] In some implementations, there are four guide rods, which are evenly spaced along the circumferential direction to provide stable guidance and transmission between the injection component and the pneumatic pump component.

[0010] In some implementations, the positioning module includes a positioning seat for placing the cylinder body, and the positioning seat is provided with a positioning pin for positioning with the cylinder body. The positioning pin facilitates quick and accurate positioning of the cylinder body, improving operational convenience and accuracy.

[0011] In some implementations, a sliding guide module disposed on the base plate is also included; The pneumatic pump assembly is connected to the sliding guide module, which provides stable sliding guidance for the pneumatic pump assembly, thereby improving operational stability.

[0012] In some implementations, the sliding guide module includes a slide rail and a slider slidably connected to the slide rail; The slide rails are distributed on the base plate along the driving direction of the driving component, and the slider is connected to the pneumatic pump component to achieve a stable sliding guide for the pneumatic pump component.

[0013] In some implementations, a calibration module is also included, which is detachably mounted on the positioning module; The calibration module includes a second pressure sensor, which is used to detect the pressure of the injection component and to calibrate with the first pressure sensor. The second pressure sensor ensures the detection accuracy of the first pressure sensor, thereby ensuring the stability of the detection fixture.

[0014] In some implementations, the calibration module further includes a connector; The second pressure sensor is mounted on the connecting base, which is positioned and connected to the positioning module, facilitating the installation and removal of the calibration module and improving operational convenience.

[0015] In summary, this utility model has at least the following advantages: 1. The present invention provides a pressure detection fixture for a compressor pneumatic pump, which uses a first pressure sensor to accurately detect the output force of the pneumatic pump, preventing excessive pressure from causing the cylinder to explode and effectively improving product yield.

[0016] 2. The present invention provides a pressure detection fixture for a compressor pneumatic pump, which is equipped with a spring to provide preload, so that the first pressure sensor and the injection component do not contact each other under normal conditions, thereby avoiding interference caused by pressure values ​​and improving the accuracy of detecting the output force of the pneumatic pump. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the detection fixture provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the cylinder body and copper tube provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the detection fixture provided in Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the detection fixture provided in Embodiment 3 of this utility model; Marked in the image: 100. Base plate; 200. Positioning module; 210. Positioning seat; 220. Positioning pin; 300, Pneumatic pump module; 310, First pressure sensor; 320, Injection assembly; 321, Injection head; 322, First mounting plate; 330, Pneumatic pump assembly; 331, Pneumatic pump connecting rod; 332, Second mounting plate; 333, Handle; 340, Guide rod; 350, Spring; 400. Sliding guide module; 410. Slide rail; 420. Slider; 500. Calibration module; 510. Second pressure sensor; 520. Connecting bracket; 600, Cylinder block; 700. Copper pipe. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] Example 1: Please see Figure 1 and Figure 2 A pressure testing fixture for a compressor pneumatic pump is used to test the output force of the pneumatic pump during the process of driving the copper tube 700 into the hole of the cylinder 600 by the output force of the pneumatic pump, so as to prevent the cylinder 600 from being blown up by excessive output force.

[0023] The compressor pneumatic pump pressure testing fixture includes a base plate 100, a positioning module 200, and a pneumatic pump module 300. The positioning module 200 and the pneumatic pump module 300 are arranged opposite each other at both ends of the base plate 100. The base plate 100 is used for the installation and fixation of the positioning module 200 and the pneumatic pump module 300, and also facilitates the handling and use of the entire fixture. The positioning module 200 is used for positioning the cylinder body, and the pneumatic pump module 300 is used for driving the copper tube into the cylinder body. That is, after the positioning module 200 positions the cylinder body, the pneumatic pump module 300 drives the copper tube into the cylinder body.

[0024] The pneumatic pump module 300 includes a first pressure sensor 310, an injection component 320, a pneumatic pump component 330, multiple guide rods 340, and multiple springs 350. The pneumatic pump component 330 is used to generate pressure, and the multiple guide rods 340 and multiple springs 350 are used to link the pneumatic pump component 330 and the injection component 320. The injection component 320 is used to inject the copper tube into the cylinder body.

[0025] The first end of the guide rod 340 is fixedly connected to the injection assembly 320. The second end of the guide rod 340 passes through the pneumatic pump assembly 330 and the spring 350 in sequence, and the two ends of the spring 350 abut against the pneumatic pump assembly 330 and the second end of the guide rod 340 respectively. The number of guide rods 340 is the same as the number of springs 350, and multiple guide rods 340 correspond one-to-one with multiple springs 350.

[0026] Understandably, the guide rod 340 passes through the injection assembly 320, the pneumatic pump assembly 330, and the spring 350, with the first end of the guide rod 340 fixedly connected to the injection assembly 320, the second end of the guide rod 340 abutting against the spring 350, and the spring 350 being limited between the second end of the guide rod 340 and the pneumatic pump assembly 330.

[0027] The first pressure sensor 310 is located between the injection component 320 and the pneumatic pump component 330, and is fixedly connected to the pneumatic pump component 330. That is, the first pressure sensor 310 and the spring 350 are respectively located at opposite ends of the pneumatic pump component 330.

[0028] Under normal conditions, the driving component 320 does not contact the first pressure sensor 310. During operation, the driving component 320 is subjected to force and comes into contact with the first pressure sensor 310.

[0029] Specifically, when the testing fixture is in a standby state, neither the injection component 320 nor the pneumatic pump component 330 is working. At this time, the first pressure sensor 310 is not in contact with the injection component 320, meaning that the first pressure sensor 310 does not experience any force, thus ensuring the accuracy of the test during the testing operation. If, under normal conditions, the first pressure sensor 310 comes into contact with the injection component 320, a corresponding pressure value may be generated, thereby affecting the accuracy of the subsequent testing operation.

[0030] In addition, under normal conditions, the two ends of the spring 350 abut against the second ends of the pneumatic pump assembly 330 and the guide rod 340, respectively. At this time, the spring 350 is in the extended state, so that the pneumatic pump assembly 330 is in a stable position, thereby ensuring that the first pressure sensor 310 located on the pneumatic pump is also in a stable position and does not come into contact with the injection assembly 320.

[0031] In operation, the pneumatic pump assembly 330 outputs pressure, which, in conjunction with the injection assembly 320, injects the copper tube into the cylinder. During this process, the injection assembly 320 is subjected to the pressure output by the pneumatic pump assembly 330 and comes into contact with the first pressure sensor 310, causing the first pressure sensor 310 to detect the pressure value output by the pneumatic pump assembly 330.

[0032] Understandably, when the injection component 320 moves in conjunction with the guide rod 340 toward the first pressure sensor 310 and the pneumatic pump component 330, the spring 350 can also provide a buffering effect between the injection component 320 and the first pressure sensor 310 after the injection component 320 comes into contact with the first pressure sensor 310.

[0033] In some embodiments, the driving assembly 320 includes a driving head 321 and a first mounting plate 322; the driving head 321 is disposed on the first mounting plate 322, and the first end of the guide rod 340 is fixedly connected to the first mounting plate 322; the driving head 321 is used to sleeve the copper tube, and the first mounting plate 322 realizes the installation and transmission functions of the driving head 321 and the guide rod 340, as well as the sleeve function of the driving head 321 on the copper tube, so as to accurately assemble the copper tube into the hole of the cylinder body.

[0034] During operation, the cylinder is placed on the positioning module 200, and the copper tube is fitted onto the insertion head 321. Under the action of the pneumatic pump assembly 330, the insertion head 321 drives the copper tube into the hole in the cylinder. Therefore, it is understandable that the insertion head 321 is equipped with a contour structure at the position for fitting the copper tube to achieve a stable fitting of the copper tube.

[0035] In some embodiments, the pneumatic pump assembly 330 includes a pneumatic pump connecting rod 331 and a second mounting plate 332; the pneumatic pump connecting rod 331 and the first pressure sensor 310 are disposed on the second mounting plate 332, and one end of the spring 350 abuts against the second mounting plate 332.

[0036] The second mounting plate 332 enables the installation and transmission of the pneumatic pump connecting rod 331, and facilitates the spring 350 to exert a pre-tightening force on the second mounting plate 332, that is, to exert a pre-tightening force on the first pressure sensor 310.

[0037] In some embodiments, a handle 333 is provided on the pneumatic pump connecting rod 331, which facilitates the operator to push the pneumatic pump connecting rod 331 when needed.

[0038] For example, after the copper tube is driven into the hole of the cylinder, push the handle 333 to make the pneumatic pump connecting rod 331 drive the driving component 320 to move away from the positioning module 200, so as to facilitate the unloading of the cylinder and the connection of the next copper tube to the driving component 320.

[0039] In some embodiments, there are four guide rods 340, which are evenly spaced along the circumferential direction to achieve stable guidance and transmission between the injection component 320 and the pneumatic pump component 330.

[0040] It should be noted that the number of guide rods 340 is not specifically limited in this embodiment. The number of guide rods 340 can be adjusted according to the actual operation requirements. It is understood that the number of springs 350 is the same as the number of guide rods 340, and each spring 350 is connected to each guide rod 340.

[0041] In some embodiments, the positioning module 200 includes a positioning seat 210 for placing the cylinder body, and the positioning seat 210 is provided with a positioning pin 220 for positioning with the cylinder body. The positioning pin 220 facilitates the quick and accurate positioning of the cylinder body, improving the convenience and accuracy of operation.

[0042] Specifically, a positioning hole is formed on the cylinder body to match the positioning pin 220. When the cylinder body is placed on the positioning seat 210, the positioning hole on the cylinder body can be aligned with the positioning pin 220 on the positioning seat 210 for positioning and placement. This ensures that after the cylinder body is positioned, its hole position corresponds to the position of the copper tube sleeved on the driving component 320, so that the driving component 320 can accurately drive the copper tube into the hole position of the cylinder body.

[0043] This embodiment provides a pressure detection fixture for a compressor pneumatic pump. By setting a first pressure sensor 310, the output force of the pneumatic pump is accurately detected, preventing excessive pressure from causing the cylinder to explode and effectively improving product yield. A spring 350 is provided to provide preload, so that the first pressure sensor 310 and the injection component 320 do not contact each other under normal conditions, avoiding interference from pressure values ​​and improving the accuracy of detecting the output force of the pneumatic pump.

[0044] Example 2: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figure 1 and Figure 2 Based on the above Figure 3 .

[0045] In some embodiments, the testing fixture also includes a sliding guide module 400 disposed on the base plate 100; the pneumatic pump assembly 330 is connected to the sliding guide module 400, and the sliding guide module 400 is used to achieve a stable sliding guide effect on the pneumatic pump assembly 330, thereby improving the stability of the operation.

[0046] Specifically, the sliding guide module 400 includes a slide rail 410 and a slider 420 slidably connected to the slide rail 410; the slide rail 410 is distributed on the base plate 100 along the injection direction of the injection component 320, and the slider 420 is connected to the pneumatic pump component 330. During the operation of the pneumatic pump component 330, the pneumatic pump component 330 moves along the slide rail 410 along a predetermined track under the action of the slider 420, thereby achieving a stable sliding guide effect on the pneumatic pump component 330.

[0047] In this embodiment, by adding a sliding guide module 400, the pneumatic pump assembly 330 is stably guided, thereby improving the stability of the operation.

[0048] Example 3: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figure 1 and Figure 2 Based on the above Figure 4 .

[0049] In some embodiments, the testing fixture further includes a calibration module 500, which is detachably mounted on the positioning module 200. The calibration module 500 includes a second pressure sensor 510, which is used to detect the pressure of the injection component 320 and to calibrate with the first pressure sensor 310. The second pressure sensor 510 ensures the detection accuracy of the first pressure sensor 310, thereby ensuring the accuracy of the testing fixture.

[0050] It should be noted that the calibration module 500 is detachably mounted on the positioning module 200. When the testing fixture is operating normally, the calibration module 500 is removed from the positioning module 200 to avoid affecting the positioning and driving operation of the cylinder. The calibration module 500 is used for spot checks of the testing fixture. For example, the calibration module 500 is only connected to the positioning module 200 at certain intervals to detect the pressure of the driving component 320 and compare it with the pressure value detected by the first pressure sensor 310 to confirm the detection accuracy of the first pressure sensor 310.

[0051] In some embodiments, the calibration module 500 further includes a connector 520; the second pressure sensor 510 is disposed on the connector 520, and the connector 520 is positioned and connected to the positioning module 200, which facilitates the installation and removal of the calibration module 500 and improves the ease of operation.

[0052] In this embodiment, the first pressure sensor 310 is calibrated by adding a calibration module 500, thereby ensuring the accuracy of the detection fixture.

[0053] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A pressure testing fixture for a compressor pneumatic pump, characterized in that, Includes a base plate (100), a positioning module (200), and a pneumatic pump module (300); The positioning module (200) and the pneumatic pump module (300) are disposed opposite to each other at both ends of the base plate (100). The positioning module (200) is used for positioning the cylinder body, and the pneumatic pump module (300) is used for driving the copper tube into the cylinder body. The pneumatic pump module (300) includes a first pressure sensor (310), an injection assembly (320), a pneumatic pump assembly (330), multiple guide rods (340), and multiple springs (350). The first end of the guide rod (340) is fixedly connected to the injection assembly (320), and the second end of the guide rod (340) passes through the pneumatic pump assembly (330) and the spring (350) in sequence, so that the two ends of the spring (350) abut against the pneumatic pump assembly (330) and the second end of the guide rod (340) respectively. The first pressure sensor (310) is located between the injection assembly (320) and the pneumatic pump assembly (330), and is fixedly connected to the pneumatic pump assembly (330); Under normal conditions, the injection component (320) does not contact the first pressure sensor (310). During operation, the injection component (320) is subjected to force and comes into contact with the first pressure sensor (310).

2. The compressor pneumatic pump pressure detection fixture according to claim 1, characterized in that, The injection assembly (320) includes an injection head (321) and a first mounting plate (322); The driving head (321) is disposed on the first mounting plate (322), and the first end of the guide rod (340) is fixedly connected to the first mounting plate (322); The insertion head (321) is used to insert a copper tube.

3. The compressor pneumatic pump pressure detection fixture according to claim 1, characterized in that, The pneumatic pump assembly (330) includes a pneumatic pump connecting rod (331) and a second mounting plate (332); The pneumatic pump connecting rod (331) and the first pressure sensor (310) are mounted on the second mounting plate (332), and one end of the spring (350) abuts against the second mounting plate (332).

4. The compressor pneumatic pump pressure detection fixture according to claim 3, characterized in that, A handle (333) is provided on the pneumatic pump connecting rod (331).

5. The compressor pneumatic pump pressure detection fixture according to claim 1, characterized in that, The number of guide rods (340) is 4, and the 4 guide rods (340) are evenly spaced along the circumferential direction.

6. The compressor pneumatic pump pressure detection fixture according to claim 1, characterized in that, The positioning module (200) includes a positioning seat (210) for placing the cylinder body, and the positioning seat (210) is provided with a positioning pin (220) for positioning with the cylinder body.

7. The compressor pneumatic pump pressure testing fixture according to any one of claims 1-6, characterized in that, It also includes a sliding guide module (400) disposed on the base plate (100); The pneumatic pump assembly (330) is connected to the sliding guide module (400).

8. The compressor pneumatic pump pressure detection fixture according to claim 7, characterized in that, The sliding guide module (400) includes a slide rail (410) and a slider (420) slidably connected to the slide rail (410). The slide rails (410) are distributed on the base plate (100) along the injection direction of the injection assembly (320), and the slider (420) is connected to the pneumatic pump assembly (330).

9. The compressor pneumatic pump pressure detection fixture according to claim 1, characterized in that, It also includes a calibration module (500), which is detachably mounted on the positioning module (200); The calibration module (500) includes a second pressure sensor (510) for detecting the pressure of the injection component (320) and calibrating with the first pressure sensor (310).

10. The compressor pneumatic pump pressure detection fixture according to claim 9, characterized in that, The calibration module (500) also includes a connector (520); The second pressure sensor (510) is disposed on the connecting seat (520), and the connecting seat (520) is positioned and connected to the positioning module (200).

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