Automobile injection molding part air tightness detection device

Abstract

The utility model discloses an automobile injection molding part air tightness detection device, which belongs to the technical field of air tightness detection devices, and comprises a detection table main body, an adjusting and fixing mechanism, a correction mechanism and a detection assembly, the detection table main body is connected with the adjusting and fixing mechanism and the correction mechanism, and the adjusting and fixing mechanism is connected with the detection assembly. By means of the mode, the variable-pitch module adapts to gas manifolds with different branch pipe distances to improve universality, accurate positioning and secondary fixing of the gas manifolds are achieved to ensure detection stability, connection of the gas manifolds and gas supply equipment is rapidly completed through the correction mechanism, and work efficiency is improved. And the gas tightness of the gas manifold is comprehensively and accurately judged through gas supply and ultrasonic sensor detection, so that the reliability of a detection result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection device technical field, specifically related to an automobile injection molding part airtightness detection device. BACKGROUND

[0002] In the operation process of the automobile engine, the air intake manifold plays a very key role, it is responsible for the air even and accurate distribution to each cylinder, to ensure that the engine realizes the efficient, stable combustion process, and the air tightness of the air intake manifold directly decides whether the air amount into the cylinder meets the ideal operation demand of the engine.

[0003] For example, patent CN214373163U discloses an automobile engine air intake manifold airtightness detection tool, including a water tank;The water tank bottom is equipped with a hydraulic cylinder;The hydraulic cylinder's hydraulic rod upper end is fixedly connected with a clamping plate;The clamping plate one end is equipped with a plugging unit, and the other end is equipped with a gas charging unit;The gas charging unit includes a gas pipe;One end of the gas pipe is fixedly connected with the lateral wall of the water tank, and the end is communicated with the external high-pressure air pump, and the other end is fixedly connected with the clamping plate.

[0004] However, the above-mentioned technology has the following problems, adopts the water immersion detection method to detect the airtightness, although the operation is relatively simple, but there are many disadvantages, this method is difficult to accurately quantify the leakage, the detection sensitivity of the tiny leakage is poor, and the product after detection needs to be dried, not only time-consuming and laborious, but also may be affected by the subsequent use due to incomplete drying.

[0005] Based on this, the utility model designs an automobile injection molding part airtightness detection device to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned shortcomings existing in the prior art, the utility model provides an automobile injection molding part airtightness detection device.

[0007] To achieve the above purpose, the utility model realizes by the following technical scheme:

[0008] An automobile injection molding part airtightness detection device, including detection table main part, adjusting fixed establishment, correction mechanism and detection assembly, the detection table main part with adjusting fixed establishment, correction mechanism all are connected, adjusting fixed establishment is connected with detection assembly;

[0009] The adjusting fixed establishment includes the positioning assembly with the positioning function and the fixed component with the secondary fixed function, and the positioning assembly is connected with the fixed component, the fixed component is connected with the detection assembly, and the positioning assembly and the fixed component are connected with the detection table main part.

[0010] Further, the positioning assembly comprises a variable distance module, output sliders, first positioning pins, second positioning pins and adjusting assemblies, the variable distance module is fixedly installed on the tabletop of the detection table body, output ends of the variable distance module are fixedly connected with the output sliders respectively, left and right sides of the output sliders are fixedly connected with the first positioning pins and the second positioning pins respectively.

[0011] Further, the adjusting assemblies are provided in multiple groups in cooperation with the output sliders, the multiple groups of adjusting assemblies are connected with the fixing assembly, each group of adjusting assemblies comprises two adjusting assemblies and is located at the left and right sides of the upper end of the output slider respectively.

[0012] Further, the adjusting assembly comprises a pressing rod, a spring, a sliding rod, a sliding block and a connecting rod, the pressing rod is fixedly connected with the lower end of the sliding rod, the side wall of the sliding rod is slidingly connected with the sliding block, one end of the connecting rod is fixedly connected with the output slider, the other end of the connecting rod is slidingly connected with the side wall of the sliding rod, the spring is sleeved on the outer wall of the sliding rod, one end of the spring is fixedly connected with the upper end of the pressing rod, the other end of the spring is connected with the lower end of the fixing assembly, and the multiple sliding blocks are connected with the fixing assembly.

[0013] Further, the fixing assembly comprises a pressing plate, an electric push rod and a telescopic rod, the fixed end of the electric push rod is fixedly installed on the inner top of the detection table body, the movable end of the electric push rod is fixedly connected with the upper end of the pressing plate, one end of the telescopic rod is fixedly connected with the inner top of the detection table body, the other end of the telescopic rod is fixedly connected with the upper end of the pressing plate, the pressing plate is provided with a sliding groove, and the sliding groove is slidingly connected with the multiple sliding blocks.

[0014] Further, the upper end of the pressing plate is connected with the detection assembly.

[0015] Further, the correction mechanism comprises a first linear module, a cylinder, a positioning pipe, a supporting plate and a corrugated hose, the first linear module is fixedly installed on the tabletop of the detection table body, the output end of the first linear module is fixedly connected with the cylinder, the output end of the cylinder is connected with the positioning pipe and the supporting plate, the positioning pipe is fixedly connected with one end of the corrugated hose, and the other end of the corrugated hose is fixedly connected with a gas supply device.

[0016] Further, the detection assembly comprises a second linear module and an ultrasonic sensor, the second linear module is fixedly installed on the upper end of the pressing plate, and the output end of the second linear module is fixedly connected with the ultrasonic sensor.

[0017] Compared with the prior art, the device has the advantages that: 1. The variable distance module can adjust the distance between the multiple output sliders according to the branch pipe distance of the intake manifold, so that the device can adapt to intake manifolds with different branch pipe distances, improve the versatility and applicability of the device, and expand the application range of the device.

[0018] 2. The variable distance module is used for adjusting the output slider distance, driving the first positioning pin and the second positioning pin to move, so that they are located below the air manifold branch positioning hole, the air manifold is placed on the output slider to realize the plug-in positioning by cooperating with the feeding structure, and then the air manifold is fixed by the pressure plate driven by the electric push rod and the pressure rod, so that secondary fixing of the air manifold is realized, the stability of the air manifold position during detection is ensured, and a good foundation is provided for subsequent detection;

[0019] 3. In the correction mechanism, the cylinder drives the positioning tube and the supporting plate to move upwards, so that the supporting plate contacts the lower end of the air manifold, the positioning tube is aligned with the air inlet of the air manifold, the positioning tube and the air inlet of the air manifold are locked by the first linear module driven by the cylinder, the connection between the air manifold and the gas supply equipment can be quickly and accurately completed, and the working efficiency is improved;

[0020] 4. The gas supply equipment fills the air manifold with air through the corrugated hose and the positioning tube, and the second linear module drives the ultrasonic sensor to detect the air tightness of different positions of the air manifold, so that the air tightness of the air manifold can be comprehensively and accurately detected, the leakage problem of the air manifold can be found in time, and the reliability of the detection result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0022] Figure 1 A perspective view of the automobile injection molded part air tightness detection device of the present application Figure 1 ;

[0023] Figure 2 A front view of the automobile injection molded part air tightness detection device of the present application

[0024] Figure 3 A perspective view of the automobile injection molded part air tightness detection device of the present application Figure 2 ;

[0025] Figure 4 A perspective view of the hidden detection table body of the present application Figure 1 ;

[0026] Figure 5 A perspective view of the hidden detection table body of the present application Figure 2 ;

[0027] Figure 6 A perspective view of the hidden detection table body of the present application Figure 4 ;

[0028] Figure 7 For Figure 5 Enlarged view at B;

[0029] Figure 8 For Figure 5 Enlarged view at C;

[0030] Figure 9 For

[0031] The reference signs in the figures respectively represent:

[0032] 1, detection table main body; 2, adjusting and fixing mechanism; 21, positioning assembly; 211, variable distance module; 212, output slider; 213, first positioning pin; 214, second positioning pin; 215, pressing rod; 216, spring; 217, sliding rod; 218, sliding block; 219, connecting rod; 22, fixing assembly; 221, pressing plate; 222, sliding groove; 223, electric push rod; 224, telescopic rod; 3, correction mechanism; 31, first linear module; 32, air cylinder; 33, positioning pipe; 34, supporting plate; 35, corrugated hose; 4, detection assembly; 41, second linear module; 42, ultrasonic sensor. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] In the following description, 'left', 'right', 'front','rear', 'upper', 'lower' are oriented with the perspective of the front view.

[0035] In some embodiments, referring to the drawings of the specification Figures 1-9 A device for detecting the air tightness of an automobile injection molded part, comprising a detection table main body 1, an adjusting and fixing mechanism 2, a correction mechanism 3 and a detection assembly 4, the detection table main body 1 is connected with the adjusting and fixing mechanism 2 and the correction mechanism 3, and the adjusting and fixing mechanism 2 is connected with the detection assembly 4.

[0036] The adjusting and fixing mechanism 2 comprises a positioning assembly 21 with positioning function and a fixing assembly 22 with secondary fixing function, the positioning assembly 21 is connected with the fixing assembly 22, the fixing assembly 22 is connected with the detection assembly 4, and the positioning assembly 21 and the fixing assembly 22 are both connected with the detection table main body 1.

[0037] The detection platform of the detection platform body 1 is provided with a sealing cover body. The sealing cover body can play a certain protection role during detection, prevent external factors from interfering with the detection result, and also avoid the influence of gas leakage on the environment and operating personnel during detection, thereby improving the safety and reliability of detection.

[0038] The utility model discloses a distance -changing module 211 is helped with the adaptability of different branch pipe spacing air manifold to promote universality, realizes air manifold accurate positioning and secondary fixed to ensure detection stability, utilizes correction mechanism 3 to complete air manifold and gas supply equipment connection fast to improve work efficiency, and judges air manifold gas tightness guarantee detection result reliable through gas supply and ultrasonic sensor 42 detection comprehensively and accurately.

[0039] The positioning assembly 21 includes a distance-changing module 211, output sliders 212, first positioning pins 213, second positioning pins 214, and an adjusting assembly. The distance-changing module 211 is fixedly installed on the tabletop of the detection platform body 1. The output ends of the distance-changing module 211 are fixedly connected with the multiple output sliders 212. The left and right sides of the output sliders 212 are fixedly connected with the first positioning pins 213 and the second positioning pins 214, respectively.

[0040] The adjusting assembly is provided with multiple groups in cooperation with the output sliders 212. Each group of adjusting assemblies is composed of two adjusting assemblies and is located on the left and right sides of the upper end of the output sliders 212.

[0041] The adjusting assembly includes a pressing rod 215, a spring 216, a sliding rod 217, a sliding block 218, and a connecting rod 219. The pressing rod 215 is fixedly connected with the lower end of the sliding rod 217. The side wall of the sliding rod 217 is slidingly connected with the sliding block 218. One end of the connecting rod 219 is fixedly connected with the output slider 212. The other end of the connecting rod 219 is slidingly connected with the side wall of the sliding rod 217. The spring 216 is sleeved on the outer wall of the sliding rod 217. One end of the spring 216 is fixedly connected with the upper end of the pressing rod 215. The other end of the spring 216 is connected with the lower end of the fixed assembly 22. The multiple sliding blocks 218 are connected with the fixed assembly 22.

[0042] The fixed assembly 22 includes a pressing plate 221, an electric push rod 223, and a telescopic rod 224. The fixed end of the electric push rod 223 is fixedly installed on the inner top of the detection platform body 1. The movable end of the electric push rod 223 is fixedly connected with the upper end of the pressing plate 221. One end of the telescopic rod 224 is fixedly connected with the inner top of the detection platform body 1. The other end of the telescopic rod 224 is fixedly connected with the upper end of the pressing plate 221. The pressing plate 221 is provided with a sliding groove 222. The sliding groove 222 is slidingly connected with the multiple sliding blocks 218.

[0043] The upper end of the pressing plate 221 is connected with the detection assembly 4.

[0044] Principle: According to the spacing between each branch pipe of the intake manifold, the variable distance module 211 adjusts the spacing between the plurality of output sliders 212, the output sliders 212 drive the first positioning pin 213, the second positioning pin 214 and the connecting rod 219 to move to the appropriate position, the connecting rod 219 drives the sliding block 218 to slide in the sliding groove 222, and the sliding block 218 drives the pressing rod 215, the sliding rod 217 and the spring 216 to move, so that the plurality of output sliders 212 are located directly below the plurality of branch pipes of the intake manifold, the first positioning pin 213 and the second positioning pin 214 are located directly below the branch pipe positioning holes of the intake manifold respectively, and the pressing rod 215 is located directly above the branch pipe positioning holes of the intake manifold.

[0045] At this time, the electric push rod 223 is started, the electric push rod 223 drives the pressing plate 221 to move downward, and the pressing plate 221 drives the pressing rod 215, the spring 216, the sliding rod 217 and the sliding block 218 to move downward, so that the pressing rod 215 is aligned with the position of the branch pipe positioning hole of the intake manifold for the first fixation, and since the sliding rod 217 is in sliding connection with the sliding block 218, the electric push rod 223 can continue to drive the pressing plate 221 to move downward, so that the pressing plate 221 is in contact with the upper end of the intake manifold, and the second fixation of the intake manifold is realized.

[0046] The utility model adjusts the position of the output slider 212 according to the spacing between the branch pipes of the intake manifold through the variable distance module 211, completes the positioning of the intake manifold, and then drives the pressing plate 221 through the electric push rod 223, so that the pressing rod 215 and the pressing plate 221 fix the intake manifold twice in turn, and the stable placement of the intake manifold is ensured.

[0047] In some embodiments, as shown in Figures 1-8 As a preferred embodiment of the utility model, the correction mechanism 3 includes a first linear module 31, a cylinder 32, a positioning pipe 33, a supporting plate 34 and a corrugated hose 35, the first linear module 31 is fixedly installed on the table top of the detection table main body 1, the output end of the first linear module 31 is fixedly connected with the cylinder 32, the output end of the cylinder 32 is connected with the positioning pipe 33 and the supporting plate 34, one end of the positioning pipe 33 is fixedly connected with the corrugated hose 35, and the other end of the corrugated hose 35 is fixedly connected with the gas supply equipment.

[0048] The detection assembly 4 includes a second linear module 41 and an ultrasonic sensor 42, the second linear module 41 is fixedly installed at the upper end of the pressing plate 221, and the output end of the second linear module 41 is fixedly connected with the ultrasonic sensor 42.

[0049] Principle: After the adjustment of the fixed mechanism 2 completes the stable fixation of the gas manifold, the cylinder 32 is started, and its piston rod pushes the positioning tube 33 and the support plate 34 to move upward steadily until the support plate 34 is tightly attached to the lower end of the gas manifold, and then the positioning tube 33 is accurately aligned with the gas inlet of the gas manifold. Subsequently, the first linear module 31 starts to work, and its output end steadily drives the gas cylinder 32 to move, and the gas cylinder 32 drives the positioning tube 33 to gradually approach the gas inlet of the gas manifold until the positioning tube 33 is stably inserted and locked with the gas inlet of the gas manifold;

[0050] Subsequently, the gas supply device is opened, and the gas is smoothly filled into the gas manifold through the corrugated hose 35 and the positioning tube 33. At the same time, the second linear module 41 is started, which drives the ultrasonic sensor 42 to move. The ultrasonic sensor 42 judges whether there is a leakage or other air tightness problem in the gas manifold by emitting and receiving ultrasonic signals, so that the ultrasonic sensor 42 can realize air tightness detection of different positions of the gas manifold.

[0051] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for testing the air tightness of automotive injection molded parts, comprising a testing platform body (1), characterized in that, It also includes an adjustment and fixing mechanism (2), a calibration mechanism (3) and a detection component (4). The main body (1) of the detection table is connected to the adjustment and fixing mechanism (2) and the calibration mechanism (3), and the adjustment and fixing mechanism (2) is connected to the detection component (4). The adjustment and fixing mechanism (2) includes a positioning component (21) with positioning function and a fixing component (22) with secondary fixing function. The positioning component (21) is connected to the fixing component (22), and the fixing component (22) is connected to the detection component (4). Both the positioning component (21) and the fixing component (22) are connected to the detection table body (1).

2. The airtightness testing device for automotive injection molded parts according to claim 1, characterized in that, The positioning component (21) includes a pitch module (211), an output slider (212), a first positioning pin (213), a second positioning pin (214), and an adjustment component. The pitch module (211) is fixedly installed on the table surface of the main body (1) of the detection table. The output end of the pitch module (211) is fixedly connected to multiple output sliders (212), and the left and right sides of the output sliders (212) are fixedly connected to the first positioning pin (213) and the second positioning pin (214), respectively.

3. The airtightness testing device for automotive injection molded parts according to claim 2, characterized in that, The adjustment components are provided in multiple sets in conjunction with the output slider (212). All sets of adjustment components are connected to the fixed component (22). Each set of adjustment components consists of two adjustment components, which are located on the left and right sides of the upper end of the output slider (212).

4. The airtightness testing device for automotive injection molded parts according to claim 3, characterized in that, The adjustment assembly includes a pressure rod (215), a spring (216), a slide rod (217), a slider (218), and a connecting rod (219). The pressure rod (215) is fixedly connected to the lower end of the slide rod (217), the side wall of the slide rod (217) is slidably connected to the slider (218), one end of the connecting rod (219) is fixedly connected to the output slider (212), and the other end of the connecting rod (219) is slidably connected to the side wall of the slide rod (217). The spring (216) is sleeved on the outer wall of the slide rod (217), and one end of the spring (216) is fixedly connected to the upper end of the pressure rod (215). The other end of the spring (216) is connected to the lower end of the fixing assembly (22). All of the multiple sliders (218) are connected to the fixing assembly (22).

5. The airtightness testing device for automotive injection molded parts according to claim 4, characterized in that, The fixing component (22) includes a pressure plate (221), an electric push rod (223), and a telescopic rod (224). The fixed end of the electric push rod (223) is fixedly installed on the inner top of the main body of the testing platform (1). The movable end of the electric push rod (223) is fixedly connected to the upper end of the pressure plate (221). One end of the telescopic rod (224) is fixedly connected to the inner top of the main body of the testing platform (1), and the other end of the telescopic rod (224) is fixedly connected to the upper end of the pressure plate (221). The pressure plate (221) has a sliding groove (222), and the sliding groove (222) is slidably connected to multiple sliders (218).

6. The airtightness testing device for automotive injection molded parts according to claim 5, characterized in that, The upper end of the pressure plate (221) is connected to the detection component (4).

7. The airtightness testing device for automotive injection molded parts according to claim 6, characterized in that, The calibration mechanism (3) includes a first linear module (31), a cylinder (32), a positioning tube (33), a support plate (34), and a corrugated hose (35). The first linear module (31) is fixedly installed on the table surface of the main body (1) of the testing station. The output end of the first linear module (31) is fixedly connected to the cylinder (32). The output end of the cylinder (32) is connected to both the positioning tube (33) and the support plate (34). The positioning tube (33) is fixedly connected to one end of the corrugated hose (35), and the other end of the corrugated hose (35) is fixedly connected to the air supply equipment.

8. The airtightness testing device for automotive injection molded parts according to claim 7, characterized in that, The detection component (4) includes a second linear module (41) and an ultrasonic sensor (42). The second linear module (41) is fixedly installed on the upper end of the pressure plate (221), and the output end of the second linear module (41) is fixedly connected to the ultrasonic sensor (42).

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