Testing device for sensor production

Abstract

The invention relates to the field of sensor production, in particular to a testing device for sensor production. The technical problem that when an existing testing device is used for testing the accuracy of a weighing sensor, testing is not stable and accurate enough, testing is not comprehensive enough, and then the testing effect is poor is solved. A testing device for sensor production comprises a supporting seat, a supporting sleeve, a monitor and the like, one side of the supporting seat is fixedly connected with the monitor, and the top of the supporting seat is fixedly connected with the supporting sleeve. An electric push rod is controlled to drive a water tank and a connecting arm to move downwards to enable a lever to rotate, the lever rotates to enable a weighing sensor to move to a position below a bulge of the water tank, and meanwhile, two clamping blocks extrude and position the weighing sensor, so that the weighing sensor is more stable and accurate in a subsequent test; the peristaltic pump pumps liquid into the water tank, and then the precision of the weighing sensor is tested through comparison, so that the testing of the weighing sensor is completed.

Description

Technical Field

[0001] The present invention relates to the field of sensor production, and in particular to a testing device for sensor production. Background Art

[0002] A sensor is a device that can sense and measure changes in physical, chemical or biological parameters and convert them into readable or processable signals. One type of sensor used to measure the weight of an object is a weighing sensor. When a weighing sensor is produced, its accuracy needs to be tested to determine whether the quality of the weighing sensor is qualified.

[0003] The current testing device is not convenient for clamping and positioning the weighing sensor when testing the accuracy of the weighing sensor, which causes the weighing sensor to be unstable and inaccurate in subsequent tests. The current testing device is not convenient for performing sensitivity tests on the weighing sensor, which causes the test of the weighing sensor to be incomplete, resulting in poor test results for the weighing sensor. Summary of the invention

[0004] In order to overcome the above shortcomings, the present invention provides a testing device for sensor production, which can clamp and position the weighing sensor so that the weighing sensor is more stable and accurate in subsequent tests, and can perform sensitivity tests on the weighing sensor, making the test more comprehensive, thereby enhancing the test effect of the weighing sensor.

[0005] The technical solution is as follows: A testing device for sensor production, including a support base, a support sleeve, a monitor, a connecting wire and a weighing sensor. The monitor is fixedly connected to one side of the support base, and the support sleeve is fixedly connected to the top of the support base. A testing mechanism is provided on the support base, and a pushing mechanism is provided on the testing mechanism. A weighing sensor is placed on the pushing mechanism. A connecting wire is fixedly connected to the weighing sensor, and the other end of the connecting wire is plugged into the monitor. The testing mechanism is used to test the weighing sensor, and the pushing mechanism is used to push and pull the weighing sensor. A clamping mechanism is provided at the bottom of the support base, and the clamping mechanism is used to clamp the weighing sensor.

[0006] Optionally, the testing mechanism includes an electric push rod, a water tank, a peristaltic pump, a hose and a connecting pipe. The electric push rod is fixedly connected to the support seat, the water tank is slidably connected to the telescopic rod of the electric push rod, the peristaltic pump is fixedly connected to the support sleeve, the telescopic rod of the electric push rod is fixedly connected to the connecting pipe, and a hose is fixedly connected between the peristaltic pump and the connecting pipe.

[0007] Optionally, a protrusion is provided at the bottom of the water tank.

[0008] Optionally, the ejection mechanism includes a connecting arm, a lifting frame, a support frame, a lever, a torsion spring and a storage plate. The connecting arm is fixedly connected to the telescopic rod of the electric push rod, the lifting frame is slidably connected to the support seat, the connecting arm contacts the bottom of one end of the lifting frame, the support frame is fixedly connected to the support seat, the lever is rotatably connected to the support frame, an inclined surface is provided on one side of the top of the lever, a sliding groove is provided at the bottom of the lever, the other end of the lifting frame contacts the inclined surface of the lever, two torsion springs are connected between the support frame and the lever, the two torsion springs are symmetrically arranged, a storage plate is slidably connected to the bottom of the support seat, and one side of the storage plate is slidably connected to the sliding groove of the lever.

[0009] Optionally, the clamping mechanism includes a guide frame, a connecting frame, a clamping block and a tension spring. Two guide frames are fixedly connected to the support seat, and the two guide frames are symmetrically arranged. Connecting frames are fixedly connected to both sides of the storage plate, and the two connecting frames are symmetrically arranged. Clamping blocks are slidably connected to the two connecting frames, and the two clamping blocks are respectively located on both sides of the weighing sensor. Tension springs are connected between the two clamping blocks and the two connecting frames.

[0010] Optionally, the guide frame is arranged obliquely.

[0011] Optionally, a groove is formed on a side of the clamping block close to the weighing sensor.

[0012] Optionally, a constraint mechanism is also included, which is arranged on the water tank and is used to squeeze the liquid in the water tank. The constraint mechanism includes a slide rod, a piston plate and a first compression spring. Two slide rods are slidably connected to the water tank, a piston plate is fixedly connected between the bottoms of the two slide rods, the piston plate is slidably connected to the inner wall of the water tank, a sandwich is formed between the bottom of the piston plate and the water tank, a connecting pipe is slidably connected to the piston plate, the connecting pipe is connected to the sandwich between the piston plate and the water tank, two first compression springs are connected between the piston plate and the water tank, and the two first compression springs are respectively sleeved on the two slide rods.

[0013] Optionally, a fluctuation mechanism is also included, which is arranged on the connecting pipe. The fluctuation mechanism is used to quickly increase or decrease the liquid in the water tank. The fluctuation mechanism includes a piston cylinder, a piston rod and a second compression spring. The piston cylinder is fixedly connected to the connecting pipe, and the piston rod is slidably connected in the piston cylinder. The second compression spring is connected between the piston cylinder and the piston rod.

[0014] Optionally, a scale and an indicator block are also included, wherein the scale is fixedly connected to one sliding rod, the indicator block is fixedly connected to the water tank, and the indicator block is slidably connected to the scale.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention controls the electric push rod to drive the water tank and the connecting arm to move downward. The downward movement of the connecting arm causes the lever to rotate. The rotation of the lever causes the weighing sensor to move to the position below the protrusion of the water tank. At the same time, the two clamps squeeze and position the weighing sensor, so that the weighing sensor is more stable and accurate in subsequent tests, thereby enhancing the test effect of the weighing sensor. The peristaltic pump pumps the liquid into the water tank, and then tests the accuracy of the weighing sensor by comparing the numerical changes of the monitor and the weight of the added liquid, thereby completing the test of the weighing sensor.

[0016] 2. When the peristaltic pump pumps the liquid into the water tank, the liquid enters the interlayer formed between the piston plate and the water tank, causing the piston plate and the slide rod to move upward. The piston plate restricts the liquid in the water tank to reduce shaking and splashing, making the water tank more stable during testing, and thus making the weighing sensor less affected by the inertial force of liquid shaking, thereby making the weighing sensor test more accurate.

[0017] 3. After the peristaltic pump pumps the liquid into the water tank, the operator quickly presses the piston rod to increase the weight in the water tank rapidly. Then the operator quickly releases the piston rod to allow the liquid to be re-absorbed into the piston cylinder, thereby rapidly reducing the weight of the water tank. At the same time, the operator observes the monitor. In this way, the weight of the water tank increases and decreases rapidly through repeated pressing, thereby performing a sensitivity test on the weighing sensor, making the test more comprehensive and further enhancing the test effect of the weighing sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0020] Figure 3 It is a schematic cross-sectional three-dimensional structure diagram of the testing mechanism and the ejecting mechanism of the present invention.

[0021] Figure 4 It is a partial three-dimensional structural schematic diagram of the ejection mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0023] Figure 6 It is a partial three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0024] Figure 7 It is a schematic cross-sectional three-dimensional structure diagram of the restraining mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the wave mechanism of the present invention.

[0026] Fig. 9 For the present invention Figure 1 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0027] Among them: 1-support seat, 11-support sleeve, 2-monitor, 3-connecting line, 31-weighing sensor, 41-electric push rod, 42-water tank, 43-peristaltic pump, 44-hose, 45-connecting pipe, 51-connecting arm, 52-lifting frame, 53-support frame, 54-lever, 55-torsion spring, 56-storage plate, 61-guide frame, 62-connecting frame, 63-clamping block, 64-tension spring, 71-sliding rod, 72-piston plate, 73-first compression spring, 81-piston cylinder, 82-piston rod, 83-second compression spring, 91-scale, 92-indicator block. DETAILED DESCRIPTION

[0028] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0029] Embodiment 1: A sensor production test device, such as Figure 1-Figure 9 As shown, it includes a support base 1, a support sleeve 11, a monitor 2, a connecting line 3 and a weighing sensor 31. The monitor 2 is fixedly connected to one side of the support base 1, and the monitor 2 is used to monitor the weighing sensor 31. The support sleeve 11 is welded on the top of the support base 1. A testing mechanism is provided on the support base 1, and a pushing mechanism is provided on the testing mechanism. The weighing sensor 31 is placed on the pushing mechanism. The weighing sensor 31 is fixedly connected with the connecting line 3, and the other end of the connecting line 3 is plugged into the monitor 2. The testing mechanism is used to test the weighing sensor 31, and the pushing mechanism is used to push and pull the weighing sensor 31. A clamping mechanism is provided at the bottom of the support base 1, and the clamping mechanism is used to clamp the weighing sensor 31.

[0030] The testing mechanism includes an electric push rod 41, a water tank 42, a peristaltic pump 43, a hose 44 and a connecting pipe 45. The electric push rod 41 is fixedly connected to the support seat 1, the water tank 42 is slidably connected to the telescopic rod of the electric push rod 41, the peristaltic pump 43 is connected to the support sleeve 11 by bolts, the telescopic rod of the electric push rod 41 is fixedly connected to the connecting pipe 45, and a hose 44 is fixedly connected between the peristaltic pump 43 and the connecting pipe 45.

[0031] A protrusion is provided at the bottom of the water tank 42 , and the protrusion of the water tank 42 is used to press the weighing sensor 31 .

[0032] The ejection mechanism includes a connecting arm 51, a lifting frame 52, a support frame 53, a lever 54, a torsion spring 55 and a storage plate 56. The connecting arm 51 is welded on the telescopic rod of the electric push rod 41, and the lifting frame 52 is slidably connected to the support seat 1. The connecting arm 51 contacts the bottom of one end of the lifting frame 52. The support frame 53 is connected to the support seat 1 by bolts. The support frame 53 is rotatably connected to the support frame 53. An inclined surface is provided on one side of the top of the lever 54, and a sliding groove is provided at the bottom of the lever 54. The other end of the lifting frame 52 contacts the inclined surface of the lever 54. Two torsion springs 55 are connected between the support frame 53 and the lever 54. The two torsion springs 55 are symmetrically arranged. A storage plate 56 is slidably connected to the bottom of the support seat 1. The storage plate 56 is used to place the weighing sensor 31, and one side of the storage plate 56 is slidably connected to the sliding groove of the lever 54.

[0033] The clamping mechanism includes a guide frame 61, a connecting frame 62, a clamping block 63 and a tension spring 64. Two guide frames 61 are connected to the support seat 1 by bolts, and the two guide frames 61 are symmetrically arranged. The two sides of the storage plate 56 are respectively connected to the connecting frames 62 by bolts, and the two connecting frames 62 are symmetrically arranged. The two connecting frames 62 are both slidably connected with clamping blocks 63. The two clamping blocks 63 are used to clamp the weighing sensor 31. The two clamping blocks 63 are respectively located on both sides of the weighing sensor 31, and tension springs 64 are connected between the two clamping blocks 63 and the two connecting frames 62.

[0034] The guide frame 61 is disposed obliquely, and the obliquely disposed guide frame 61 is used to squeeze the clamping block 63 to move.

[0035] A groove is formed on one side of the clamping block 63 close to the weighing sensor 31 , and the groove of the clamping block 63 is used to position the weighing sensor 31 .

[0036] Initially, the connecting arm 51 supports the lifting frame 52 to resist the lever 54, so that the torsion spring 55 is in a twisted state. First, the operator places the weighing sensor 31 to be detected on the storage plate 56, and plugs the connecting line 3 into the monitor 2. Then the operator controls the telescopic rod of the electric push rod 41 to extend and drive the water tank 42 and the connecting arm 51 to move downward. The connecting arm 51 moves downward to make the lifting frame 52 move downward. After the lifting frame 52 moves downward, it no longer resists the lever 54. Then the torsion spring 55 resets and drives the lever 54 to rotate, thereby driving the load cell 31 to rotate. The object plate 56 moves the weighing sensor 31 to the lower position of the protrusion of the water tank 42. At the same time, the two guide frames 61 squeeze the two clamping blocks 63 respectively and move them in the direction close to the weighing sensor 31. The tension spring 64 is stretched, so that the two clamping blocks 63 squeeze and position the weighing sensor 31. In this way, the weighing sensor 31 is clamped and positioned by the two clamping blocks 63, so that the weighing sensor 31 is more stable and accurate in subsequent tests, thereby enhancing the test effect of the weighing sensor 31. Then, the water tank 42 falls on the weighing sensor 31 and stops moving. , the telescopic rod of the electric push rod 41 continues to extend a certain distance so that the weighing sensor 31 fully supports the weight of the water tank 42. At the same time, the operator starts the peristaltic pump 43 to pump the liquid into the water tank 42 through the hose 44 and the connecting pipe 45. Then the operator tests the accuracy of the weighing sensor 31 by comparing the value change of the monitor 2 and the weight of the added liquid. In this way, when testing the weighing sensor 31, the peristaltic pump 43 accurately controls the flow rate of the liquid to test the accuracy of the weighing sensor 31, thereby completing the test of the weighing sensor 31. After the test is completed The operator controls the peristaltic pump 43 to suck out the liquid in the water tank 42, and at the same time controls the telescopic rod of the electric push rod 41 to retract, driving the water tank 42 and the connecting arm 51 to reset upward. The connecting arm 51 resets upward through the lifting frame 52 to reset the lever 54, and the torsion spring 55 returns to the initial state, thereby resetting the placement plate 56 to push out the weighing sensor 31. The placement plate 56 resets so that the clamping block 63 falls off and contacts the guide frame 61, and the tension spring 64 resets so that the two clamping blocks 63 are reset. Then the operator pulls out the connecting line 3 and removes the weighing sensor 31 at the same time.

[0037] Embodiment 2: Based on embodiment 1, Figure 1-Figure 9As shown, a constraint mechanism is also included, which is arranged on the water tank 42 and is used to squeeze the liquid in the water tank 42. The constraint mechanism includes a slide rod 71, a piston plate 72 and a first compression spring 73. Two slide rods 71 ​​are slidably connected to the water tank 42, and a piston plate 72 is connected between the bottoms of the two slide rods 71 ​​by bolts. The piston plate 72 is used to prevent the liquid in the water tank 42 from shaking and splashing. The piston plate 72 is slidably connected to the inner wall of the water tank 42, and a sandwich is formed between the bottom of the piston plate 72 and the water tank 42. The connecting pipe 45 is slidably connected to the piston plate 72, and the connecting pipe 45 is communicated with the sandwich between the piston plate 72 and the water tank 42. Two first compression springs 73 are connected between the piston plate 72 and the water tank 42, and the two first compression springs 73 are respectively sleeved on the two slide rods 71.

[0038] It also includes a scale 91 and an indicator block 92, wherein the scale 91 is connected to one of the slide bars 71 by bolts, and the indicator block 92 is connected to the water tank 42 by bolts, the indicator block 92 is slidably connected to the scale 91, and the indicator block 92 is used to measure the water level in the water tank 42 in real time through the scale 91.

[0039] When the peristaltic pump 43 pumps liquid into the water tank 42, the liquid enters the interlayer formed between the piston plate 72 and the water tank 42 through the connecting pipe 45, causing the piston plate 72 and the slide bar 71 to move upward, and the first compression spring 73 is compressed. In this way, the liquid in the water tank 42 is restricted by the piston plate 72 to reduce the shaking and splashing of the liquid, so that the water tank 42 is more stable during the test, and the weighing sensor 31 is not easily affected by the inertial force of the liquid shaking, so that the test of the weighing sensor 31 is more accurate. When the slide bar 71 moves upward, it will drive the scale 91 to move upward. In this way, the increase of liquid in the water tank 42 allows the scale of the corresponding weight on the scale 91 to move to the position of the indicator block 92, so that it is convenient for the operator to observe the water level of the liquid in the water tank 42, thereby improving the test efficiency of the weighing sensor 31. After completing the test, the operator controls the peristaltic pump 43 to suck out the liquid in the water tank 42, so that the piston plate 72 and the slide bar 71 are reset through the first compression spring 73, and the scale 91 is reset at the same time.

[0040] Embodiment 3: Based on embodiment 2, Figure 1-Figure 8 As shown, it also includes a fluctuation mechanism, which is arranged on the connecting pipe 45. The fluctuation mechanism is used to quickly increase or decrease the liquid in the water tank 42. The fluctuation mechanism includes a piston cylinder 81, a piston rod 82 and a second compression spring 83. The piston cylinder 81 is welded on the connecting pipe 45. Some liquid is stored in the piston cylinder 81. The piston rod 82 is slidably connected to the piston cylinder 81. The second compression spring 83 is connected between the piston cylinder 81 and the piston rod 82.

[0041] At first, the piston cylinder 81 is filled with liquid. When the peristaltic pump 43 pumps the liquid into the water tank 42, the operator quickly presses the piston rod 82 so that the liquid in the piston cylinder 81 quickly enters the water tank 42 through the connecting pipe 45, and the second compression spring 83 is compressed. After the liquid in the piston cylinder 81 enters the water tank 42, the weight of the water tank 42 increases rapidly. Then the operator quickly releases the piston rod 82, and the second compression spring 83 quickly resets to drive the piston rod 82 to quickly reset. The rapid reset of the piston rod 82 causes the liquid to be re-absorbed into the piston cylinder 81, thereby rapidly reducing the weight of the water tank 42. At the same time, the operator observes the monitor 2. In this way, the weight of the water tank 42 is rapidly increased or decreased by repeatedly pressing, and the sensitivity test of the weighing sensor 31 is then performed, making the test more comprehensive, thereby further enhancing the test effect of the weighing sensor 31.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sensor production testing device, characterized in that: The invention comprises a support base (1), a support sleeve (11), a monitor (2), a connecting line (3) and a weighing sensor (31); one side of the support base (1) is fixedly connected to the monitor (2); the top of the support base (1) is fixedly connected to the support sleeve (11); a testing mechanism is provided on the support base (1); a pushing mechanism is provided on the testing mechanism; a weighing sensor (31) is placed on the pushing mechanism; a connecting line (3) is fixedly connected to the weighing sensor (31); the other end of the connecting line (3) is plugged into the monitor (2); the testing mechanism is used to test the weighing sensor (31); the pushing mechanism is used to push and pull the weighing sensor (31); a clamping mechanism is provided at the bottom of the support base (1); the clamping mechanism is used to clamp the weighing sensor (31).

2. A sensor production testing device as claimed in claim 1, characterized in that: The testing mechanism comprises an electric push rod (41), a water tank (42), a peristaltic pump (43), a hose (44) and a connecting pipe (45); the electric push rod (41) is fixedly connected to the support seat (1); the water tank (42) is slidably connected to the telescopic rod of the electric push rod (41); the peristaltic pump (43) is fixedly connected to the support sleeve (11); the connecting pipe (45) is fixedly connected to the telescopic rod of the electric push rod (41); and the hose (44) is fixedly connected between the peristaltic pump (43) and the connecting pipe (45).

3. A sensor production testing device as claimed in claim 2, characterized in that: A protrusion is provided at the bottom of the water tank (42).

4. A sensor production testing device as claimed in claim 2, characterized in that: The push-out mechanism comprises a connecting arm (51), a lifting frame (52), a support frame (53), a lever (54), a torsion spring (55) and a storage plate (56). The connecting arm (51) is fixedly connected to the telescopic rod of the electric push rod (41). The lifting frame (52) is slidably connected to the support seat (1). The connecting arm (51) contacts the bottom of one end of the lifting frame (52). The support seat (1) is fixedly connected to the support frame (53). The support frame (53) is rotatably connected to the support frame (53). An inclined surface is provided on one side of the top of the lever (54). A sliding groove is provided on the bottom of the lever (54). The other end of the lifting frame (52) contacts the inclined surface of the lever (54). Two torsion springs (55) are connected between the support frame (53) and the lever (54). The two torsion springs (55) are symmetrically arranged. The storage plate (56) is slidably connected to the bottom of the support seat (1). One side of the storage plate (56) is slidably connected to the sliding groove of the lever (54).

5. A sensor production testing device as claimed in claim 4, characterized in that: The clamping mechanism comprises a guide frame (61), a connecting frame (62), a clamping block (63) and a tension spring (64); the two guide frames (61) are fixedly connected to the support seat (1); the two guide frames (61) are symmetrically arranged; the two sides of the storage plate (56) are respectively fixedly connected to the connecting frames (62); the two connecting frames (62) are symmetrically arranged; the two connecting frames (62) are both slidably connected to the clamping blocks (63); the two clamping blocks (63) are respectively located on the two sides of the weighing sensor (31); and tension springs (64) are respectively connected between the two clamping blocks (63) and the two connecting frames (62).

6. A sensor production testing device as claimed in claim 5, characterized in that: The guide frame (61) is arranged obliquely.

7. A sensor production testing device as claimed in claim 5, characterized in that: A groove is formed on one side of the clamping block (63) close to the weighing sensor (31).

8. A sensor production testing device as claimed in claim 5, characterized in that: The invention also includes a restraining mechanism, which is arranged on the water tank (42) and is used to squeeze the liquid in the water tank (42). The restraining mechanism includes a slide bar (71), a piston plate (72) and a first compression spring (73). Two slide bars (71) are slidably connected to the water tank (42). A piston plate (72) is fixedly connected between the bottoms of the two slide bars (71). The piston plate (72) is slidably connected to the inner wall of the water tank (42). An interlayer is formed between the bottom of the piston plate (72) and the water tank (42). A connecting pipe (45) is slidably connected to the piston plate (72). The connecting pipe (45) is communicated with the interlayer between the piston plate (72) and the water tank (42). Two first compression springs (73) are connected between the piston plate (72) and the water tank (42). The two first compression springs (73) are respectively sleeved on the two slide bars (71).

9. A sensor production testing device as claimed in claim 8, characterized in that: The invention also includes a fluctuation mechanism, which is arranged on the connecting pipe (45) and is used to quickly increase or decrease the liquid in the water tank (42). The fluctuation mechanism includes a piston cylinder (81), a piston rod (82) and a second compression spring (83). The connecting pipe (45) is fixedly connected to the piston cylinder (81), the piston rod (82) is slidably connected to the piston cylinder (81), and the second compression spring (83) is connected between the piston cylinder (81) and the piston rod (82).

10. A sensor production testing device as claimed in claim 9, characterized in that: It also includes a scale (91) and an indicator block (92), wherein the scale (91) is fixedly connected to one of the slide bars (71), the indicator block (92) is fixedly connected to the water tank (42), and the indicator block (92) is slidably connected to the scale (91).

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