Automatic air tightness measuring device

Abstract

The utility model relates to the technical field of hardware fitting production detection, in particular to an automatic airtightness detection device which comprises a test board, an air pump is arranged in the test board through a mounting frame, a first air guide pipe is arranged at the inflation end of the air pump, a flow dividing pipe is arranged on the first air guide pipe, a plurality of second air guide pipes are arranged on the flow dividing pipe, and the second air guide pipes are arranged on the mounting frame. The second air guide pipe penetrates out of the test bench, and a positioning block used for fixing hardware fittings is arranged on the surface of the test bench. The top plate moves upwards to jack up the hardware fittings, and then the air cylinder drives the pressing plate to move upwards, so that the pull rope is tightened to pull the material returning rod to move forwards to push out the hardware fittings, quick material returning is realized, and the test efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware accessories production and detection, in particular to an automatic airtightness detection device. Background Art

[0002] In the production process of hardware mold accessories, air tightness is a key indicator, which directly affects the function and performance of the product. In order to ensure the quality of hardware accessories, strict air tightness testing must be carried out.

[0003] When the existing air tightness test device is used, the hardware accessories need to be clamped on the test bench, but they need to be manually removed after the test is completed, which is inconvenient, affects the material return speed, and reduces the test efficiency.

[0004] Therefore, there is an urgent need to provide an automatic airtightness measuring device for quick material return. Utility Model Content

[0005] In order to overcome the shortcomings of the existing air tightness testing device that after the test is completed, manual material removal is required, which affects the material withdrawal speed and reduces the test efficiency, the utility model provides an automatic air tightness testing device with quick material withdrawal.

[0006] To solve the above problem, the utility model adopts the following technical scheme: an automatic airtightness measuring device, comprising a test bench, an air pump is arranged in the test bench through a mounting frame, a first air guide tube is arranged at the inflation end of the air pump, a shunt tube is arranged on the first air guide tube, a plurality of second air guide tubes are arranged on the shunt tube, the second air guide tubes pass through the test bench, a positioning block for fixing hardware accessories is arranged on the test bench table, a top plate for lifting the hardware accessories is slidably arranged on the positioning block, a plurality of vents matching the second air guide tubes are arranged on the top plate, a first elastic member is connected between the top plate and the positioning block, a cylinder is arranged on the test bench, a pressing plate is arranged on the movable rod of the cylinder, a symmetrically distributed first guide rod is fixed on the test bench, a material ejection rod for pushing out the hardware accessories is slidably arranged on the first guide rod, a second elastic member is sleeved on the first guide rod, one end of a pull rope is connected to the pressing plate, and the other end of the pull rope is connected to the material ejection rod, and a controller is arranged on the side of the test bench.

[0007] Furthermore, the test bench surface is provided with a material guide plate.

[0008] Furthermore, guide plates are provided on both sides of the controller, and a connecting frame is slidably provided on the guide plates. A cleaning block is provided on a side of the connecting frame close to the controller, and the surface of the controller can be wiped and cleaned by pulling the connecting frame.

[0009] Furthermore, a filter screen is arranged in the second air duct.

[0010] Furthermore, a protective shell is arranged outside the cylinder.

[0011] Compared with the prior art, the utility model has the following technical effects: 1. The hardware accessories are first lifted up by moving the top plate upward, and then the pressure plate is driven upward by the cylinder, so that the pull rope is tightened to pull the material return rod forward to push out the hardware accessories, thereby realizing quick material return and helping to improve testing efficiency.

[0012] 2. The surface of the controller can be wiped and cleaned by pulling the connecting frame, thereby removing stains and dust on the surface of the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the test bench, the material guide plate and the top plate of the utility model.

[0015] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the air pump, mounting frame and shunt pipe of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the utility model's diverter pipe, second air guide pipe and filter screen.

[0017] Figure 5 This is a cover diagram of the positioning frame, intelligent weighing plate and card ball of the utility model.

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the material guide plate, the positioning plate and the guide frame of the utility model.

[0019] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the guide frame, storage cabinet and limit plate of the utility model.

[0020] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the guide plate, the connecting frame and the cleaning block of the utility model.

[0021] Figure numbers: 1: test bench, 2: mounting frame, 3: air pump, 4: first air duct, 5: diverter pipe, 6: second air duct, 7: positioning block, 8: top plate, 9: cylinder, 10: pressure plate, 11: first elastic member, 12: material return rod, 13: pull rope, 14: first guide rod, 1401: second elastic member, 1402: material guide plate, 15: controller, 16: positioning frame, 17: second guide rod, 18: intelligent weighing plate, 19: card ball, 20: third elastic member, 21: positioning plate, 22: guide frame, 23: storage cabinet, 24: limit plate, 25: support frame, 26: fourth elastic member, 27: guide plate, 28: connecting frame, 29: cleaning block, 30: filter net, 31: protective shell. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-Figure 4, an automatic air tightness measuring device, comprising a test bench 1, an air pump 3 is arranged in the test bench 1 through a mounting frame 2, a first air guide tube 4 is arranged at the inflation end of the air pump 3, a shunt tube 5 is arranged at the top of the first air guide tube 4, four second air guide tubes 6 are arranged on the top of the shunt tube 5 and are symmetrically distributed in pairs, the second air guide tubes 6 pass through the test bench 1, a filter screen 30 is arranged in the second air guide tube 6, the filter screen 30 is used to filter air and remove impurities in the gas, a positioning block 7 for fixing hardware accessories is arranged in the middle of the table top of the test bench 1, a top plate 8 for lifting the hardware accessories is slidably arranged on the positioning block 7, four ventilation holes matching the second air guide tube 6 are arranged on the top plate 8, a first elastic member 11 is connected between the top plate 8 and the positioning block 7, the first elastic member 11 is used to drive the top plate 8 to reset, a cylinder 9 is arranged on the upper part of the test bench 1, a protective shell 31 is arranged on the outside of the cylinder 9, the protective shell 31 is used to protect the cylinder 9, the cylinder A pressing plate 10 is arranged on the movable rod of 9, and the operation of the cylinder 9 can drive the pressing plate 10 to move downward to press and reinforce the hardware accessories. The test bench 1 is fixed with a first guide rod 14 symmetrically distributed on the left and right, and the first guide rod 14 is slidably provided with a material ejection rod 12 for ejecting the hardware accessories. The first guide rod 14 is sleeved with a second elastic member 1401, and the two ends of the second elastic member 1401 are respectively connected to the material ejection rod 12 and the test bench 1, and the pressing plate 10 is connected with a pull rope. 13, and the other end of the pull rope 13 is connected to the material return rod 12. The pressure plate 10 and the material return rod 12 are connected by the pull rope 13, so that when the pressure plate 10 moves up, it can drive the material return rod 12 to move forward to return the material. A guide plate 1402 is arranged on the front side of the test bench 1, and the guide plate 1402 is used to export the hardware accessories. A controller 15 is arranged on the right side of the test bench 1. The air pump 3 and the cylinder 9 can be controlled by the controller 15, and the test parameters of the test bench 1 can be set and the test data can be checked.

[0025] When in use, first start the cylinder 9 to move the pressing plate 10 downward. As the pressing plate 10 moves downward, the pull rope 13 is relaxed, and the ejector rod 12 retreats backward from the top plate 8 under the resetting elastic force of the second elastic member 1401. Then, the hardware accessories are placed in the middle of the positioning block 7. Then, the pressing plate 10 continues to move downward to squeeze the hardware accessories, so that the top plate 8 moves downward to expose the positioning block 7 to clamp the hardware accessories. Then, the second air guide pipe 6 is aligned with the air hole on the top plate 8, and the air pump 3 is turned on to transport gas into the shunt pipe 5. The gas is introduced into the interior of the hardware accessories through the second air guide pipe 6 for inflation and pressurization, and then a certain air pressure is maintained to ensure that the air pressure around the hardware accessories is stable. The airtightness test data will also change synchronously if the airtightness of the hardware accessories meets the standard, otherwise it will display NG. At this time, the test bench 1 will automatically discharge the excess gas, and the test is completed. The cylinder 9 drives the pressure plate 10 to reset upward, and the top plate 8 moves up to lift the hardware accessories under the reset elastic force of the first elastic member 11, and the hardware accessories are out of the positioning block 7. At the same time, the pressure plate 10 pulls the drawstring 13 to tighten the drawstring 13 and pull the material return rod 12 forward to push the hardware accessories out of the top plate 8 to realize material return.

[0026] Example 2

[0027] See also Figure 8 The controller 15 is provided with guide plates 27 on both the front and rear sides, and the guide plates 27 are slidably provided with a connecting frame 28. A cleaning block 29 is provided on the connecting frame 28 close to the controller 15. The connecting frame 28 can be pulled to wipe and clean the surface of the controller 15, thereby removing stains and dust on the surface of the controller.

[0028] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. An automatic air tightness measuring device, comprising a test bench (1), wherein an air pump (3) is arranged in the test bench (1) through a mounting frame (2), a first air guide tube (4) is arranged at the inflation end of the air pump (3), a shunt tube (5) is arranged on the first air guide tube (4), a plurality of second air guide tubes (6) are arranged on the shunt tube (5), the second air guide tubes (6) pass through the test bench (1), and a positioning block (7) for fixing hardware accessories is arranged on the surface of the test bench (1), wherein: A top plate (8) for lifting the hardware accessories is slidably arranged on the positioning block (7), and a plurality of ventilation holes matching the second air guide tube (6) are arranged on the top plate (8). A first elastic member (11) is connected between the top plate (8) and the positioning block (7). A cylinder (9) is arranged on the test bench (1), and a pressure plate (10) is arranged on the movable rod of the cylinder (9). A symmetrically distributed first guide rod (14) is fixedly connected to the test bench (1), and a material ejection rod (12) for ejecting the hardware accessories is slidably arranged on the first guide rod (14). A second elastic member (1401) is sleeved on the first guide rod (14), and one end of a pull rope (13) is connected to the pressure plate (10), and the other end of the pull rope (13) is connected to the material ejection rod (12). A control instrument (15) is arranged on the side of the test bench (1).

2. An automatic airtightness measuring device according to claim 1, characterized in that: The test bench (1) is provided with a material guide plate (1402) on its table top.

3. The automatic airtightness measuring device according to claim 1, characterized in that: Guide plates (27) are provided on both sides of the control instrument (15), and a connecting frame (28) is slidably provided on the guide plates (27). A cleaning block (29) is provided on a side of the connecting frame (28) close to the control instrument (15), and the surface of the control instrument (15) can be wiped and cleaned by pulling the connecting frame (28).

4. The automatic airtightness measuring device according to claim 1, characterized in that: A filter screen (30) is arranged inside the second air duct (6).

5. The automatic airtightness measuring device according to claim 1, characterized in that: A protective shell (31) is arranged outside the cylinder (9).

Images