Piston airtightness detection equipment

Abstract

The utility model relates to the technical field of piston detection, in particular to piston air tightness detection equipment, which comprises a base and a detection assembly, and is characterized in that the detection assembly comprises a water tank, an upright post, a lifting plate, a lifting component, a mounting frame, a positioning component, an air cylinder, a mounting plate and a cylinder sleeve, the lifting component drives the lifting plate to ascend and descend, the mounting frame is fixedly mounted on the lifting plate, the positioning component is mounted on the mounting frame, the air cylinder is fixedly connected with the lifting plate and located at the top of the lifting plate, and the mounting plate is fixedly connected with the output end of the air cylinder and located in the mounting frame. And the cylinder sleeve is fixedly connected with the mounting plate and is positioned on one side, far away from the air cylinder, of the mounting plate, so that the problems of long time consumption, low automation degree and influence on the detection efficiency due to relatively tedious detection steps in the prior art, and the piston ring at the upper end of the piston needs to be filled with liquid manually are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston detection, in particular to a piston air tightness detection device. Background Art

[0002] During the production and use of pistons, their air tightness is a key performance indicator. However, existing air tightness testing equipment has problems such as poor accuracy and cannot meet the increasing production needs and quality requirements.

[0003] Prior art CN220751485U discloses a piston air tightness detection device, including a detection base installed on a corresponding detection table, a fixing component and a locking component opposite to the fixing component are arranged on the detection base, and the piston is clamped and fixed by the fixing component and the locking component to prevent misalignment during the pressurization process and affect the detection accuracy. A pressurization component and a liquid injection component are installed on the detection base, and liquid is used as a medium to detect whether bubbles are generated when the piston is pressurized, so as to judge whether the air tightness at the piston ring is good. A sensor component is arranged between the fixing component and the locking component. Compared with manual observation, the use of the sensor component can save manpower and improve the efficiency of piston detection.

[0004] Regarding the piston air tightness detection device mentioned above, since the detection steps are relatively cumbersome, it is necessary to manually add liquid to the piston ring at the upper end of the piston, which takes a long time and has a low degree of automation, thus affecting the detection efficiency. Utility Model Content

[0005] The utility model aims to provide a piston air tightness detection device, which solves the problem that the prior art has complicated detection steps, requires manual injection of liquid into the piston ring at the upper end of the piston, takes a long time, has a low degree of automation, and affects the detection efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides a piston air tightness detection device, including a base and a detection component, the detection component including a water tank, a column, a lifting plate, a lifting member, a mounting frame, a positioning member, a cylinder, a mounting plate and a cylinder sleeve, the water tank is fixedly connected to the base and is located on one side of the base, the column is fixedly connected to the base and is located on a side of the base close to the water tank, the lifting plate is slidably installed on the column, the lifting member drives the lifting plate to rise and fall, the mounting frame is fixedly connected to the lifting plate and is located on a side of the lifting plate close to the water tank, the positioning member is installed on the mounting frame, the cylinder is fixedly connected to the lifting plate and is located on the top of the lifting plate, the mounting plate is fixedly connected to the output end of the cylinder and is located in the mounting frame, and the cylinder sleeve is fixedly connected to the mounting plate and is located on a side of the mounting plate away from the cylinder.

[0007] Wherein, the positioning member includes a positioning seat and a positioning pin, the positioning seat is fixedly connected to the mounting frame and is located on a side of the mounting frame close to the cylinder sleeve; the positioning pin is fixedly connected to the positioning seat and is located on the top of the positioning seat.

[0008] Wherein, the column has a sliding groove, and the sliding groove is located on a side of the column close to the lifting plate; the lifting plate has a protrusion; and the protrusion cooperates with the sliding groove.

[0009] Among them, the lifting component includes a lifting screw and a lifting motor, the lifting screw is rotatably connected to the column and is threadedly connected to the lifting plate; the lifting motor is fixedly installed on the column, and the output shaft of the lifting motor is fixedly connected to the lifting screw.

[0010] Wherein, the detection assembly further includes a guide column and a sliding sleeve, and the two ends of the guide column are fixedly connected to the lifting plate and the mounting frame respectively; the sliding sleeve is fixedly connected to the mounting plate and slidably connected to the guide column.

[0011] The utility model discloses a piston air tightness detection device, comprising a base and a detection component, wherein the detection component comprises a water tank, a column, a lifting plate, a lifting component, a mounting frame, a positioning component, a cylinder, a mounting plate and a cylinder sleeve, wherein the water tank is fixedly connected to the base and is located at one side of the base, the column is fixedly connected to the base and is located at a side of the base close to the water tank, the lifting plate is slidably mounted on the column, the lifting component drives the lifting plate to rise and fall, the mounting frame is fixedly connected to the lifting plate and is located at a side of the lifting plate close to the water tank, the positioning component is mounted on the mounting frame, the cylinder is fixedly connected to the lifting plate and is located at the top of the lifting plate, the mounting plate is fixedly connected to the output end of the cylinder and is located in the mounting frame, and the cylinder sleeve is fixedly connected to the mounting plate and is located at a side of the mounting plate away from the cylinder, thereby solving the problem that the prior art has complicated detection steps, requires manual filling of liquid into the piston ring at the upper end of the piston, takes a long time, has a low degree of automation and affects the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the piston air tightness detection device of the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a positioning component of the first embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of a cylinder sleeve according to the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the lifting component of the first embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of the overall structure of the piston air tightness detection device of the second embodiment of the utility model.

[0018] In the figure: 101-base, 102-water tank, 103-column, 104-lifting plate, 105-lifting screw, 106-lifting motor, 107-mounting frame, 108-positioning seat, 109-positioning pin, 110-cylinder, 111-mounting plate, 112-cylinder sleeve, 113-sliding groove, 114-protrusion, 201-guide column, 202-sleeve. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1-Figure 4 , Figure 1 This is a schematic diagram of the overall structure of the piston air tightness detection device of the first embodiment of the utility model. Figure 2 It is a structural schematic diagram of the positioning component of the first embodiment of the utility model. Figure 3 1 is a schematic structural diagram of a cylinder sleeve 112 according to a first embodiment of the utility model. Figure 4 It is a structural schematic diagram of the lifting component of the first embodiment of the utility model.

[0022] The piston air tightness detection device of the utility model includes a base 101, a water tank 102, a column 103, a lifting plate 104, a lifting screw 105, a lifting motor 106, a mounting frame 107, a positioning seat 108, a positioning pin 109, a cylinder 110, a mounting plate 111, a cylinder sleeve 112, a sliding groove 113, and a protrusion 114. It solves the problem that the prior art has complicated detection steps and needs to manually add liquid to the piston ring at the upper end of the piston, which takes a long time and has a low degree of automation, affecting the detection efficiency. It is understandable that the aforementioned solution can also be used to simplify the operation and improve the detection efficiency.

[0023] In this embodiment, the base 101 is a rectangular body, which provides stable and reliable support for the equipment. The detection component is installed on the base 101, which solves the problem of the prior art that the detection steps are complicated, liquid needs to be manually added to the piston ring at the upper end of the piston, which takes a long time and has a low degree of automation, affecting the detection efficiency.

[0024] The water tank 102 is fixedly connected to the base 101 and is located on one side of the base 101. The column 103 is fixedly connected to the base 101 and is located on a side of the base 101 close to the water tank 102. The lifting plate 104 is slidably installed on the column 103. The lifting member drives the lifting plate 104 to move up and down. The mounting frame 107 is fixedly connected to the lifting plate 104 and is located on a side of the lifting plate 104 close to the water tank 102. The positioning member is installed on the mounting frame 107. The cylinder 110 is fixedly connected to the lifting plate 104 and is located on the top of the lifting plate 104. The mounting plate 111 is fixedly connected to the output end of the cylinder 110 and is Located in the mounting frame 107, the cylinder sleeve 112 is fixedly connected to the mounting plate 111 and is located on the side of the mounting plate 111 away from the cylinder 110. The water tank 102 is made of transparent material, filled with water, and has an open top. The column 103 is vertically installed on the base 101 and is located next to the water tank 102. The lifting plate 104 is slidably installed on the column 103. Under the drive of the lifting component, the lifting plate 104 can be lifted and lowered on the column 103. The mounting frame 107 is U-shaped and fixed to the bottom of the lifting plate 104. The opening direction faces upward. The mounting frame 107 rises and falls with the lifting and lowering of the lifting plate 104. When the mounting frame 107 is lowered, it can be immersed The cylinder 110 is installed in the water tank 102, the positioning member is fixedly mounted on the inner bottom of the mounting frame 107, and is used to fix the piston. The cylinder 110 is installed upside down on the top of the lifting plate 104 by bolts. A through hole is opened on the lifting plate 104, and the position of the through hole corresponds to the position of the output end of the cylinder 110. The output end of the cylinder 110 can extend downward into the mounting frame 107 through the through hole. The mounting plate 111 is a rectangular plate, which is fixedly connected to the output end of the cylinder 110 and moves vertically with the expansion and contraction of the cylinder 110. The cylinder sleeve 112 is fixedly mounted on the bottom of the mounting plate 111, and is located directly above the positioning member. The cylinder sleeve 112 is adapted to the piston to be tested. The bottom of the sleeve 112 is a bell mouth, which is convenient for the piston to enter. The extension of the cylinder 110 can drive the cylinder sleeve 112 to move downward, so that the piston on the positioning member cooperates with the cylinder sleeve 112. After the piston cooperates with the cylinder sleeve 112, a chamber is formed inside the cylinder sleeve 112. Driven by the lifting member, the mounting frame 107 is completely immersed in the water tank 102. If bubbles appear in the water, it means that the chamber is not sealed tightly, proving that the piston is unqualified. Otherwise, it proves that the piston is qualified. The present application only needs to install the piston on the fixed member. The piston can be tested by the cooperation of the lifting member and the cylinder 110. The operation is simple, the testing process is convenient and fast, and the problem of complicated testing steps in the prior art is solved.It is necessary to manually add liquid to the piston ring at the upper end of the piston, which takes a long time and has a low degree of automation, affecting the detection efficiency.

[0025] Secondly, the locating seat 108 is fixedly connected to the mounting frame 107 and is located on a side of the mounting frame 107 close to the cylinder sleeve 112; the locating pin 109 is fixedly connected to the locating seat 108 and is located at the top of the locating seat 108. The locating seat 108 is located directly below the cylinder sleeve 112. The top surface of the locating seat 108 can be designed according to the contour of the actual piston skirt so that the piston can fit with the locating seat 108, which is convenient for accurately fixing the piston. The locating pin 109 is horizontally installed on the top of the locating seat 108. The locating pin 109 matches the position and size of the locating hole on the piston. The piston is installed on the locating seat 108 through the locating pin 109. After the detection is completed, the cylinder sleeve 112 moves upward. Under the action of the locating pin 109, the piston will not be taken away by the cylinder sleeve 112, causing the problem of inconvenience in removal. The locating seat 108 and the locating pin 109 can be used to conveniently and quickly position and fix the piston.

[0026] At the same time, the sliding groove 113 is located on the side of the column 103 close to the lifting plate 104; the lifting plate 104 has a protrusion 114; the protrusion 114 cooperates with the sliding groove 113, and the sliding groove 113 is opened along the length direction of the column 103 and is located in the upper half of the column 103. Through the cooperation between the sliding groove 113 and the protrusion 114, the lifting plate 104 can slide on the column 103, and at the same time, the lifting is limited and can only move vertically.

[0027] In addition, the lifting screw 105 is rotatably connected to the column 103 and is threadedly connected to the lifting plate 104; the lifting motor 106 is fixedly installed on the column 103, and the output shaft of the lifting motor 106 is fixedly connected to the lifting screw 105. A mounting hole is provided at the top of the column 103, and the lifting screw 105 penetrates the mounting hole and extends into the column 103, and is connected to the column 103 through a bearing. A threaded through hole is provided on the lifting plate 104, and the lifting screw 105 penetrates the threaded through hole and is threadedly connected to the lifting plate 104. The lifting motor 106 is fixed to the top of the column 103 by bolts, and is used to drive the lifting screw 105 to rotate. The lifting screw 105 is driven to rotate by the lifting motor 106, thereby driving the lifting plate 104 to be lifted and lowered.

[0028] In this embodiment, the device is controlled by a single chip microcomputer. A start button is provided on the column 103. When in use, the piston is installed on the positioning seat 108 through the positioning pin 109, so that the piston is accurately positioned and fixed. Then, the start button is pressed, and the cylinder 110 is actuated to drive the cylinder sleeve 112 to move downward to cooperate with the piston. After that, the lifting motor 106 is actuated to drive the lifting screw 105 to rotate, driving the lifting plate 104 to move downward, and the entire mounting frame 107 is immersed in the water tank 102 for a certain period of time. At this time, the inspection personnel only need to observe whether there are bubbles in the water tank 102. If there are no bubbles, it is qualified. , bubbling means it is unqualified. After the soaking time is over, the lifting motor 106 drives the lifting screw 105 to rotate in reverse to reset the lifting plate 104. After the lifting plate 104 is reset, the cylinder 110 retracts, driving the cylinder sleeve 112 to move upward, and the inspector removes the piston. In the present application, after the inspector installs the piston, he only needs to press the start button to perform an airtightness test on the piston. The operation is simple and the test process is convenient and fast. It solves the problem that the prior art has complicated test steps and needs to manually add liquid to the piston ring at the upper end of the piston, which takes a long time and has a low degree of automation, affecting the test efficiency.

[0029] The second embodiment of the present application is:

[0030] See also Figure 5 , Figure 5 2 is a schematic diagram of the overall structure of a piston air tightness detection device according to a second embodiment of the utility model. On the basis of the first embodiment, the piston air tightness detection device according to this embodiment further includes a guide column 201 and a sliding sleeve 202 .

[0031] In this embodiment, the detection assembly further includes a guide column 201 and a sleeve 202. The above solution can ensure accurate alignment between the cylinder sleeve 112 and the piston.

[0032] Among them, the two ends of the guide column 201 are fixedly connected to the lifting plate 104 and the mounting frame 107 respectively; the sleeve 202 is fixedly connected to the mounting plate 111 and is slidably connected to the guide column 201. The guide column 201 is a smooth cylinder, and there are two of them, which are respectively located on both sides of the mounting plate 111. There are two of the sleeves 202, which are respectively installed on both sides of the mounting plate 111. The two sleeves 202 are respectively mounted on the two guide columns 201. Through the cooperation of the guide column 201 and the sleeve 202, the movement of the mounting plate 111 is guided, thereby ensuring the accurate alignment of the cylinder sleeve 112 and the piston.

[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A piston air tightness detection device, comprising a base, characterized in that: Also included are detection components; The detection assembly includes a water tank, a column, a lifting plate, a lifting component, a mounting frame, a positioning component, a cylinder, a mounting plate and a cylinder sleeve. The water tank is fixedly connected to the base and is located on one side of the base. The column is fixedly connected to the base and is located on a side of the base close to the water tank. The lifting plate is slidably installed on the column. The lifting component drives the lifting plate to rise and fall. The mounting frame is fixedly connected to the lifting plate and is located on a side of the lifting plate close to the water tank. The positioning component is installed on the mounting frame. The cylinder is fixedly connected to the lifting plate and is located on the top of the lifting plate. The mounting plate is fixedly connected to the output end of the cylinder and is located in the mounting frame. The cylinder sleeve is fixedly connected to the mounting plate and is located on a side of the mounting plate away from the cylinder.

2. The piston air tightness detection device according to claim 1, characterized in that: The positioning member includes a positioning seat and a positioning pin. The positioning seat is fixedly connected to the mounting frame and is located on a side of the mounting frame close to the cylinder sleeve; the positioning pin is fixedly connected to the positioning seat and is located on the top of the positioning seat.

3. The piston air tightness detection device according to claim 1, characterized in that: The column has a sliding groove, and the sliding groove is located on a side of the column close to the lifting plate; the lifting plate has a protrusion; and the protrusion cooperates with the sliding groove.

4. The piston air tightness detection device according to claim 1, characterized in that: The lifting component includes a lifting screw and a lifting motor. The lifting screw is rotatably connected to the column and is threadedly connected to the lifting plate. The lifting motor is fixedly installed on the column, and the output shaft of the lifting motor is fixedly connected to the lifting screw.

5. The piston air tightness testing device according to claim 1, characterized in that: The detection assembly also includes a guide column and a sliding sleeve. The two ends of the guide column are fixedly connected to the lifting plate and the mounting frame respectively; the sliding sleeve is fixedly connected to the mounting plate and slidably connected to the guide column.

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