Elastic testing device and use method of shaft pin type sensor

Abstract

The invention relates to the technical field of spring elasticity detection, and discloses an elasticity testing device and a use method of a shaft pin type sensor. A vertical spring is conveyed to a conveying belt, the conveying belt conveys the vertical spring to a taking and placing claw, the taking and placing claw bears the vertical spring and drives the vertical spring to move to a detection position, a second detection rod downwards presses the vertical spring, meanwhile, after the spring is pressed on a first detection rod, the taking and placing claw is opened, and the vertical spring is detected. And then the first detection rod performs an elasticity test on the spring, so that the spring is stably conveyed to a detection position by using the pick-and-place claw, the situation that the position of the spring is inaccurate and the test quality is reduced when the spring is manually placed in an auxiliary manner is avoided, and meanwhile, the overall test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spring elasticity detection, in particular to an elasticity testing device and a method for using a shaft pin sensor. BACKGROUND

[0002] At present, for the elasticity test of an elastic body on the market, a test device needs to apply a test action, such as applying pressure, to the elastic body to obtain pressure information, displacement information and test time domain information of the elastic body in the test process, and then collect and input these information into a computer to obtain the elasticity value of the elastic body through calculation.

[0003] In the existing elasticity testing device, such as Chinese patent application CN112611494A, a base plate is provided, the base plate is fixedly connected with a vertical column arranged vertically, the vertical column is connected with a moving seat movable in the vertical direction, the moving seat is connected with a driving assembly for driving the moving seat to move, the driving assembly is fixedly connected with the vertical column, the lower end of the moving seat is connected with a pressing block, the lower surface of the pressing block is provided as a curved surface at least partially protruding downward, and a pressure sensor is arranged between the pressing block and the moving seat. When the driving assembly drives the moving seat to move, the pressing block can be driven to move together. The mattress material is arranged below the pressing block. When the curved surface of the pressing block abuts against the mattress material, the pressure sensor can measure the pressure of the pressing block on the mattress material. The lower surface of the pressing block protruding downward can accurately match the shapes of different parts of the human body, so that the elastic supporting force of the mattress material when different parts of the human body are pressed on the mattress material can be more accurately measured. The structure is simple, convenient to use and accurate in measurement.

[0004] However, the following problems still exist: The elasticity test needs to be performed manually by connecting the elastic member with the device one by one, manual assistance in the test leads to low overall test efficiency of the device, and if the manual assistance in the installation is not standardized, the test result will be inaccurate. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an elasticity testing device and a method for using a shaft pin sensor, which has the advantages of stably sending the spring to the detection position by the taking and placing claw, avoiding the inaccurate position of the spring caused by manual assistance in placing the spring, reducing the test quality, and improving the overall test efficiency. The problems of the elasticity test needing to be performed manually by connecting the elastic member with the device one by one, manual assistance in the test leading to low overall test efficiency of the device, and the test result being inaccurate if the manual assistance in the installation is not standardized are solved.

[0006] In order to achieve the above object, the present application provides the following technical scheme: an elastic testing device, comprising a base, a testing mechanism arranged on the base, and an auxiliary mechanism arranged on the testing mechanism, wherein the testing mechanism comprises a first detection rod and a second detection rod, the first detection rod is arranged on the base, the second detection rod is arranged on the base, the second detection rod is located directly above the first detection rod, the second detection rod moves towards the first detection rod and presses the spring between the first detection rod and the second detection rod, and the first detection rod detects the elasticity of the spring.

[0007] The auxiliary mechanism comprises a taking and placing claw and a conveying belt, the taking and placing claw rotates, the movement track of the taking and placing claw covers the upper side of the first detection rod, the movement track of the taking and placing claw covers the conveying belt, the taking and placing claw transfers the spring conveyed by the conveying belt to the first detection rod, and the taking and placing claw opens to avoid the detection position of the spring when the spring is subjected to the elastic test.

[0008] Preferably, the testing mechanism further comprises a support column, the support column is fixedly installed on the base, the support column is symmetrically arranged in two parts on two sides of the base, the support column is a hollow structure, a bottom frame is arranged between the support columns on the two sides, the bottom frame is located at the lower end of the support column, the two ends of the bottom frame are fixedly connected with the support columns on the two sides respectively, the first detection rod is slidably fitted at the top end of the bottom frame, the first detection rod penetrates through the bottom frame, an axle pin type sensor is arranged at the bottom end of the bottom frame, the bearing end of the axle pin type sensor is fixedly connected with the bottom frame, and the stress detection end of the axle pin type sensor is fixedly connected with the bottom end of the first detection rod.

[0009] Preferably, a top frame is arranged between the support columns on the two sides, the top frame is located at the upper end of the support column, the top frame is located directly above the bottom frame, the top frame penetrates through the wall surface of the support column on each side, the top frame is slidably fitted with the support column, the second detection rod is fixedly installed at the bottom end of the top frame, the size of the second detection rod is matched with the size of the first detection rod, and the top end of the first detection rod is the detection position of the spring.

[0010] Preferably, a screw rod is rotatably fitted in the support column, the top end of the screw rod is connected with the inner top end of the support column, the bottom end of the screw rod penetrates through the support column, the bottom end of the screw rod penetrates through the wall surface of the base, a belt wheel is fixedly installed at the bottom end of the screw rod, a toothed belt is tensioned on the belt wheels on the two sides, the toothed belt is engaged with the belt wheels, a stepping motor is fixedly installed in the base, a power gear is fixedly installed on the shaft of the stepping motor, a driven gear is fixedly installed on the belt wheel on one side, the size of the driven gear is greater than that of the power gear, and the driven gear is engaged with the power gear.

[0011] Preferably, a control display is fixedly installed on the support column, and the control display is used to control the operation of the testing device.

[0012] Preferably, the auxiliary mechanism further comprises a fixing frame fixedly installed on the support column on one side, the fixing frame is sleeved on the support column, the fixing frame is a circular structure, the fixing frame is located above the first detection rod, a ring frame is sleeved on the fixing frame, the ring frame is in sliding fit with the fixing frame, a gear ring is fixedly installed at the bottom end of the ring frame, the size of the gear ring is matched with the size of the ring frame, the gear surface of the gear ring is located at the bottom end, a servo motor is fixedly installed on the support column, the servo motor is located below the gear ring, a bevel gear is fixedly installed on the shaft of the servo motor, and the bevel gear is in mesh with the gear ring.

[0013] Preferably, a plurality of the pick-and-place claws are arranged on the ring frame, the pick-and-place claws are uniformly distributed on the ring frame, each of the pick-and-place claws is symmetrically arranged in two parts, the front end of the pick-and-place claw is rotatably connected to the rear end of the pick-and-place claw, the rear end of the pick-and-place claw is connected to the ring frame, the pick-and-place claw is in a scissor-shaped structure, a tension spring is arranged between the two parts of the pick-and-place claw, the two ends of the tension spring are respectively connected to the two parts of the pick-and-place claw, and the tension spring is located on the front end part of the pick-and-place claw.

[0014] Preferably, an insertion rod is fixedly installed at the bottom end of the top frame, an insertion opening is arranged at the front end of the two parts of the pick-and-place claw, the insertion rod corresponds to the insertion opening on the pick-and-place claw in the detection position, the size of the insertion rod is matched with the size of the insertion opening, when the insertion rod is inserted into the insertion opening, the front end of the pick-and-place claw is opened, a blocking member is fixedly installed on the support column, the blocking member is located above the moving track of the pick-and-place claw, and the blocking member blocks the detected spring.

[0015] Preferably, a side frame is fixedly installed on the support column, a plurality of conveying rollers are rotatably connected to the side frame, the conveying belt is tensioned on the conveying rollers, the terminal end of the conveying path of the conveying belt is adjacent to the moving track of the pick-and-place claw, the conveying belt conveys the vertical spring to the pick-and-place claw, a conveying motor is fixedly installed on the side frame, the conveying motor is in power connection with the conveying rollers, a guide limiting plate is fixedly installed on the side frame, the guide limiting plate is located on the conveying path of the conveying belt, the guide limiting plate is symmetrically arranged in two parts on the two sides of the conveying belt, and the guide limiting plate guides the vertical spring to the pick-and-place claw.

[0016] A use method of a shaft pin type sensor, which uses the elastic testing device, comprises the following steps:

[0017] S1: vertical spring is conveyed to the conveying belt, and the conveying belt conveys the vertical spring to the taking and placing claw;

[0018] S2: the taking and placing claw receives the vertical spring and drives the vertical spring to the detection position;

[0019] S3: the second detection rod presses the vertical spring, and after the spring is pressed on the first detection rod, the taking and placing claw is opened, and then the first detection rod tests the spring by using the shaft pin type sensor.

[0020] Compared with the prior art, the present application provides an elastic testing device, which has the following beneficial effects:

[0021] 1. The elastic testing device conveys the vertical spring to the conveying belt, and the conveying belt conveys the vertical spring to the taking and placing claw, the taking and placing claw receives the vertical spring and drives the vertical spring to the detection position, the second detection rod presses the vertical spring, and after the spring is pressed on the first detection rod, the taking and placing claw is opened, and then the first detection rod tests the spring, so that the spring is stably sent to the detection position by the taking and placing claw, the inaccuracy of the spring position caused by manual auxiliary placement of the spring is avoided, the test quality is improved, and the overall test efficiency is improved.

[0022] 2. The elastic testing device is provided with the shaft pin type sensor, force is conducted to the force detection end of the shaft pin type sensor, and the accuracy of the shaft pin type sensor detection improves the quality of the spring elastic detection.

[0023] 3. The elastic testing device is provided with the guide limiting plate, the spring can be stably conveyed to the taking and placing claw when the conveying belt conveys the spring, the spring is prevented from falling, and the stability of the test device operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the test device of the present application;

[0025] Figure 2 It is a test mechanism structure schematic view of the present application;

[0026] Figure 3 It is a shaft pin type sensor structure distribution schematic view of the present application;

[0027] Figure 4 It is a screw structure distribution schematic view of the present application;

[0028] Figure 5 It is a base internal structure distribution schematic view of the present application;

[0029] Figure 6 As Figure 5 Enlarged structural diagram of the structure at A in the middle;

[0030] Figure 7 Structural diagram of the auxiliary mechanism of the present application;

[0031] Figure 8 Structural diagram of the structure at the insertion rod of the present application;

[0032] Figure 9 Structural diagram of the structure at the fixing frame of the present application;

[0033] Figure 10 Structural diagram of the structure at the pick-and-place claw of the present application;

[0034] Figure 11 Structural diagram of the structure at the blocking piece of the present application;

[0035] Figure 12 Structural diagram of the structure at the conveying belt of the present application.

[0036] In the figure: 1, base; 2, testing mechanism; 21, support column; 22, base frame; 23, first detection rod; 24, shaft pin sensor; 25, top frame; 26, second detection rod; 27, screw rod; 28, pulley; 29, toothed belt; 210, stepping motor; 211, driving gear; 212, driven gear; 213, control display; 3, auxiliary mechanism; 31, fixing frame; 32, ring frame; 33, gear ring; 34, servo motor; 35, bevel gear; 36, pick-and-place claw; 37, tension spring; 38, insertion rod; 39, insertion port; 310, blocking piece; 311, side frame; 312, conveying roller; 313, conveying belt; 314, conveying motor; 315, guide limiting plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] As introduced in the background, the deficiencies in the prior art exist, in order to solve the above technical problems, the present application proposes a kind of elastic test device and the use method of shaft pin sensor.

[0039] In a typical embodiment of the present application, as Figure 1As shown, an elasticity testing device includes a base 1, a testing mechanism 2 disposed on the base 1, and an auxiliary mechanism 3 disposed on the testing mechanism 2. The testing mechanism 2 includes a first detection rod 23 and a second detection rod 26. The first detection rod 23 is disposed on the base 1, and the second detection rod 26 is disposed on the base 1. The second detection rod 26 is located directly above the first detection rod 23. The second detection rod 26 moves closer to the first detection rod 23 and compresses the spring between the first detection rod 23 and the second detection rod 26. The first detection rod 23 detects the elasticity of the spring.

[0040] The auxiliary mechanism 3 includes a pick-and-place claw 36 and a conveyor belt 313. The pick-and-place claw 36 rotates, and its movement trajectory covers the top of the first detection rod 23. The pick-and-place claw 36 also covers the conveyor belt 313. The pick-and-place claw 36 transfers the spring conveyed by the conveyor belt 313 to the first detection rod 23. When the spring is being tested for elasticity, the pick-and-place claw 36 opens to avoid the detection position of the spring.

[0041] When using this invention:

[0042] The vertical spring is conveyed onto the conveyor belt 313, which then transfers it to the pick-and-place claw 36. The pick-and-place claw 36 receives the vertical spring and moves it to the detection position. The second detection rod 26 presses down on the vertical spring. Simultaneously, after the spring is pressed onto the first detection rod 23, the pick-and-place claw 36 opens, and the first detection rod 23 performs an elasticity test on the spring. This process utilizes the pick-and-place claw 36 to stably deliver the spring to the detection position, avoiding inaccurate spring positioning caused by manual assistance, which would reduce test quality and improve overall testing efficiency.

[0043] Example 2, as Figures 2-6 As shown, the difference from the above embodiment is that the testing mechanism 2 also includes a support column 21. The support column 21 is fixedly installed on the base 1. The support column 21 is symmetrically arranged on both sides of the base 1 in two parts. The support column 21 is hollow. A base frame 22 is arranged between the two support columns 21. The base frame 22 is located at the lower end of the support column 21. The two ends of the base frame 22 are fixedly connected to the support column 21 on each side. A first detection rod 23 is slidably fitted at the top of the base frame 22. The first detection rod 23 passes through the base frame 22. A pin-type sensor 24 is arranged at the bottom of the base frame 22. The bearing end of the pin-type sensor 24 is fixedly connected to the base frame 22. The force detection end of the pin-type sensor 24 is fixedly connected to the bottom end of the first detection rod 23.

[0044] Further, the top frame 25 is arranged between the two side supports 21, the top frame 25 is located at the upper end of the support 21, the top frame 25 is located directly above the bottom frame 22, both ends of the top frame 25 penetrate the wall surface of each side of the support 21, the top frame 25 is in sliding fit with the support 21, the bottom end of the top frame 25 is fixedly installed with a second detection rod 26, the size of the second detection rod 26 is matched with the size of the first detection rod 23, and the top end of the first detection rod 23 is a detection position of a spring.

[0045] Further, the screw rod 27 is rotatably arranged in the support 21, the top end of the screw rod 27 is connected with the inner top end of the support 21, the bottom end of the screw rod 27 penetrates the support 21, the bottom end of the screw rod 27 penetrates the wall surface of the base 1, and the bottom end of the screw rod 27 is fixedly installed with a belt wheel 28, the belt wheel 28 on the two sides is tensioned with a toothed belt 29, the toothed belt 29 is meshed with the belt wheel 28, the base 1 is fixedly installed with a stepping motor 210, the shaft of the stepping motor 210 is fixedly installed with a power gear 211, and the belt wheel 28 on one side is fixedly installed with a driven gear 212. The size of the driven gear 212 is greater than that of the power gear 211, and the driven gear 212 is meshed with the power gear 211.

[0046] Further, the control display 213 is fixedly installed on the support 21, and the control display 213 is used for controlling the operation of the testing device.

[0047] When the spring is tested, the elastic testing device is started under the control of the control display 213, the stepping motor 210 is started when the spring is vertically moved to the first detection rod 23, the stepping motor 210 drives the power gear 211 to rotate, the power gear 211 drives the driven gear 212 to rotate, the driven gear 212 drives the belt wheel 28 to rotate, the belt wheel 28 drives the toothed belt 29 to rotate, the toothed belt 29 drives all the belt wheels 28 to rotate, the belt wheel 28 drives the screw rod 27 to rotate, the screw rod 27 drives the top frame 25 to move on the support 21, the top frame 25 drives the second detection rod 26 to move, so that the second detection rod 26 moves to the first detection rod 23, so as to vertically press the spring on the first detection rod 23, so that the spring is compressed and the reset elastic force drives the first detection rod 23, the first detection rod 23 transmits the force to the shaft pin type sensor 24, so as to test the elasticity of the spring.

[0048] Embodiment 3, as Figures 7-12As shown, the difference from the above embodiment is that the auxiliary mechanism 3 further comprises a fixing frame 31 fixedly installed on the support 21 on one side, the fixing frame 31 is sleeved on the support 21, the fixing frame 31 is a circular structure, the fixing frame 31 is located above the first detection rod 23, a ring frame 32 is sleeved on the fixing frame 31, the ring frame 32 is in sliding fit with the fixing frame 31, the bottom end of the ring frame 32 is fixedly installed with a gear ring 33, the size of the gear ring 33 is matched with the size of the ring frame 32, the gear surface of the gear ring 33 is located at the bottom end, a servo motor 34 is fixedly installed on the support 21, the servo motor 34 is located below the gear ring 33, a bevel gear 35 is fixedly installed on the shaft of the servo motor 34, the bevel gear 35 is engaged with the gear ring 33.

[0049] Further, a plurality of taking and placing claws 36 are arranged on the ring frame 32, the taking and placing claws 36 are uniformly distributed on the ring frame 32, each taking and placing claw 36 is symmetrically arranged in two parts, the front end of the taking and placing claw 36 is rotatably connected to the rear end of the taking and placing claw 36, the rear end of the taking and placing claw 36 is connected to the ring frame 32, the taking and placing claw 36 is a scissors-shaped structure, a tension spring 37 is arranged between the two parts of the taking and placing claw 36, the two ends of the tension spring 37 are respectively connected to the two parts of the taking and placing claw 36, and the tension spring 37 is located on the front end part of the taking and placing claw 36.

[0050] Further, the bottom end of the top frame 25 is fixedly installed with a plug rod 38, the front end of the two parts of the taking and placing claw 36 is provided with a socket 39, the plug rod 38 corresponds to the socket 39 on the taking and placing claw 36 in the rotating detection position, the size of the plug rod 38 is matched with the size of the socket 39, when the plug rod 38 is inserted into the socket 39, the front end of the taking and placing claw 36 is opened, a blocking piece 310 is fixedly installed on the support 21, the blocking piece 310 is located above the moving track of the taking and placing claw 36, and the blocking piece 310 blocks the detected spring.

[0051] Further, a side frame 311 is fixedly installed on the support 21, a plurality of conveying rollers 312 are rotatably connected to the side frame 311, a conveying belt 313 is tensioned on the conveying rollers 312, the conveying path of the conveying belt 313 is adjacent to the moving track of the taking and placing claw 36, so that the conveying belt 313 conveys the vertical spring to the taking and placing claw 36, a conveying motor 314 is fixedly installed on the side frame 311, the conveying motor 314 is power-connected to the conveying rollers 312, a guide limiting plate 315 is fixedly installed on the side frame 311, the guide limiting plate 315 is located on the conveying path of the conveying belt 313, the guide limiting plate 315 is symmetrically arranged in two parts on the two sides of the conveying belt 313, and the guide limiting plate 315 guides the vertical spring to the taking and placing claw 36.

[0052] Further, the conveying system is connected to the conveying belt 313, so that the conveying system conveys the spring to the conveying belt 313, and at the same time, the conveying system also conveys the spring to the conveying belt 313, and the spring is in a vertical state, and the axial direction of the spring is vertical.

[0053] Wherein, when the spring is moved to the detection position, the transmission motor 314 is started, the transmission motor 314 drives the transmission roller 312 to rotate, the transmission roller 312 drives the transmission belt 313 to rotate, the vertical spring is moved by the transmission belt 313, and the spring is limited by the guide limiting plate 315 and moves to the taking and placing claw 36, so that the spring is directly inserted into the taking and placing claw 36, that is, the taking and placing claw 36 supports the spring from the gap of the spring, and then the servo motor 34 is started, the servo motor 34 drives the bevel gear 35 to rotate, the bevel gear 35 drives the gear ring 33 to rotate, the gear ring 33 drives the ring frame 32 to rotate on the fixed frame 31, the ring frame 32 drives the taking and placing claw 36 to rotate, so that the taking and placing claw 36 adjacent to the taking and placing claw 36 carrying the spring is rotated to correspond to the transmission belt 313, and then the spring is moved to the empty taking and placing claw 36, with the rotation of the ring frame 32, the taking and placing claw 36 carrying the spring is rotated to the first detection rod 23, at this time, the second detection rod 26 is pressed down, and the top frame 25 drives the insertion rod 38 to move, the insertion rod 38 is inserted into the insertion port 39, the insertion rod 38 uses the insertion port 39 to open the taking and placing claw 36, the taking and placing claw 36 is opened at the same time, the extension spring 37 is lengthened, so that the taking and placing claw 36 releases the support of the spring, so as to place the spring in the clamping of the first detection rod 23 and the second detection rod 26, after the detection is completed, the top frame 25 is reset, the insertion rod 38 is separated from the insertion port 39, the extension spring 37 uses the reset elastic force to reset the taking and placing claw 36, so that the taking and placing claw 36 re-supports the detected spring, and then with the rotation of the ring frame 32, the taking and placing claw 36 carrying the detected spring hits the blocking piece 310, the blocking piece 310 pushes the detected spring off the taking and placing claw 36, so that the empty taking and placing claw 36 continues to rotate to the transmission belt 313.

[0054] The working principle of the application is as follows:

[0055] The vertical spring is conveyed to the transmission belt 313, the transmission belt 313 conveys the vertical spring to the taking and placing claw 36, the taking and placing claw 36 supports the vertical spring and drives the vertical spring to move to the detection position, the second detection rod 26 presses down the vertical spring, at the same time, after the spring is pressed on the first detection rod 23, the taking and placing claw 36 is opened, and then the first detection rod 23 tests the spring in an elastic manner, so that the taking and placing claw 36 stably sends the spring to the detection position, avoids the inaccuracy of the position of the spring caused by manual auxiliary placement of the spring, reduces the test quality, and improves the overall test efficiency;

[0056] When the spring is tested, the elastic testing device is controlled by the control display 213 to start, and when the spring is vertically moved to the first detection rod 23, the stepping motor 210 is started to drive the power gear 211 to rotate, the power gear 211 drives the driven gear 212 to rotate, the driven gear 212 drives the belt pulley 28 to rotate, the belt pulley 28 drives the toothed belt 29 to rotate, the toothed belt 29 drives all the belt pulleys 28 to rotate, the belt pulleys 28 drive the screw rod 27 to rotate, the screw rod 27 drives the top frame 25 to move on the support column 21, the top frame 25 drives the second detection rod 26 to move, and the second detection rod 26 moves towards the first detection rod 23 to press the spring vertically on the first detection rod 23, so that the spring is compressed and the reset elastic force drives the first detection rod 23, and the first detection rod 23 transmits the force to the shaft pin type sensor 24 to test the elasticity of the spring;

[0057] When the spring is moved to the detection position, the transmission motor 314 is started to drive the transmission roller 312 to rotate, the transmission roller 312 drives the transmission belt 313 to rotate, and the vertical spring is moved by the transmission belt 313. The spring is limited by the guide limiting plate 315 to move to the taking and placing claw 36. Because the spring is in a vertical state at this time, the spring will be directly inserted into the taking and placing claw 36, that is, the taking and placing claw 36 will support the spring from the gap of the spring. Then the servo motor 34 is started to drive the bevel gear 35 to rotate, the bevel gear 35 drives the gear ring 33 to rotate, the gear ring 33 drives the ring frame 32 to rotate on the fixed frame 31, the ring frame 32 drives the taking and placing claw 36 to rotate, and the taking and placing claw 36 adjacent to the taking and placing claw 36 carrying the spring is rotated to correspond to the transmission belt 313. Then the spring is moved to the empty taking and placing claw 36. With the rotation of the ring frame 32, the taking and placing claw 36 carrying the spring is rotated to the first detection rod 23. At this time, the second detection rod 26 is pressed down, and the top frame 25 drives the insertion rod 38 to move. The insertion rod 38 is inserted into the insertion port 39. The insertion rod 38 uses the insertion port 39 to open the taking and placing claw 36. The taking and placing claw 36 is opened at the same time, and the extension spring 37 is lengthened, so that the taking and placing claw 36 releases the support of the spring, so that the spring is placed in the clamping of the first detection rod 23 and the second detection rod 26. After the detection is completed, the top frame 25 is reset, the insertion rod 38 is separated from the insertion port 39, the extension spring 37 uses the reset elastic force to reset the taking and placing claw 36, so that the taking and placing claw 36 re-supports the detected spring. Then, with the rotation of the ring frame 32, the taking and placing claw 36 carrying the detected spring hits the blocking piece 310, and the blocking piece 310 pushes the detected spring from the taking and placing claw 36, so that the empty taking and placing claw 36 continues to rotate to the transmission belt 313.

[0058] A use method of a shaft pin type sensor, which uses the above-mentioned elastic testing device, includes the following steps:

[0059] S1: The vertical spring is transported to the transmission belt 313, and the transmission belt 313 transmits the vertical spring to the taking and placing claw 36;

[0060] S2: the taking and placing claw 36 receives the vertical spring and drives the vertical spring to the detection position;

[0061] S3: the second detection rod 26 presses the vertical spring, and after the spring is pressed on the first detection rod 23, the taking and placing claw 36 is opened, and then the first detection rod 23 uses the shaft pin type sensor 24 to perform the elastic test on the spring.

[0062] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elastic test device, comprising a base, a test mechanism arranged on the base, an auxiliary mechanism arranged on the test mechanism, characterized in that: the test mechanism comprises a first detection rod and a second detection rod, the first detection rod is arranged on the base, the second detection rod is arranged on the base, the second detection rod is located directly above the first detection rod, the second detection rod moves towards the first detection rod and presses the spring between the first detection rod and the second detection rod, and the first detection rod detects the elasticity of the spring; the auxiliary mechanism comprises a taking and placing claw and a conveying belt, the taking and placing claw rotates, the movement track of the taking and placing claw covers the upper part of the first detection rod, the movement track of the taking and placing claw covers the conveying belt, the taking and placing claw transfers the spring conveyed by the conveying belt to the first detection rod, and the taking and placing claw opens to avoid the detection position of the spring when the spring is tested.

2. The elastic test device according to claim 1, characterized in that: the test mechanism further comprises a support column, the support column is fixedly installed on the base, the support column is symmetrically arranged in two parts on both sides of the base, the support column is a hollow structure, a bottom frame is arranged between the support columns on both sides, the bottom frame is located at the lower end of the support column, the ends of the bottom frame are fixedly connected with the support columns on both sides respectively, the first detection rod is slidably connected with the top end of the bottom frame, the first detection rod penetrates through the bottom frame, an axle pin type sensor is arranged at the bottom end of the bottom frame, the bearing end of the axle pin type sensor is fixedly connected with the bottom frame, and the force detection end of the axle pin type sensor is fixedly connected with the bottom end of the first detection rod.

3. The elastic test device according to claim 2, characterized in that: a top frame is arranged between the support columns on both sides, the top frame is located at the upper end of the support column, the top frame is located directly above the bottom frame, the top frame penetrates through the wall surface of the support column on each side, the top frame is slidably connected with the support column, the second detection rod is fixedly installed at the bottom end of the top frame, the size of the second detection rod is matched with the size of the first detection rod, and the top end of the first detection rod is the detection position of the spring.

4. The elastic test device according to claim 3, characterized in that: a screw rod is rotatably connected in the support column, the top end of the screw rod is connected with the inner top end of the support column, the bottom end of the screw rod penetrates through the support column, the bottom end of the screw rod penetrates through the wall surface of the base, a belt wheel is fixedly installed at the bottom end of the screw rod, a toothed belt is tensioned on the belt wheels on both sides, the toothed belt is meshed with the belt wheels, a stepping motor is fixedly installed in the base, a power gear is fixedly installed on the shaft of the stepping motor, a driven gear is fixedly installed on one side of the belt wheel, the size of the driven gear is larger than that of the power gear, and the driven gear is meshed with the power gear.

5. The elastic test device according to claim 4, characterized in that: The control display is fixedly installed on the support column and used for controlling the operation of the testing device.

6. The elastic testing device according to claim 5, characterized in that: The auxiliary mechanism further comprises a fixing frame fixedly installed on the support column on one side, the fixing frame is sleeved on the support column, the fixing frame is of a circular structure, the fixing frame is located above the first detection rod, a ring frame is sleeved on the fixing frame, the ring frame is in sliding fit with the fixing frame, a gear ring is fixedly installed at the bottom end of the ring frame, the size of the gear ring is matched with the size of the ring frame, the gear surface of the gear ring is located at the bottom end, a servo motor is fixedly installed on the support column and located below the gear ring, a bevel gear is fixedly installed on the shaft of the servo motor, and the bevel gear is in mesh with the gear ring.

7. The elastic testing device according to claim 6, characterized in that: A plurality of the pick-and-place claws are arranged on the ring frame and uniformly distributed on the ring frame, each of the pick-and-place claws is symmetrically arranged in two parts, the front end of the pick-and-place claw is rotatably fitted on the rear end of the pick-and-place claw, the rear end of the pick-and-place claw is connected with the ring frame, the pick-and-place claw is of a scissors structure, a tension spring is arranged between the two parts of the pick-and-place claw, the two ends of the tension spring are respectively connected with the two parts of the pick-and-place claw, and the tension spring is located on the front end part of the pick-and-place claw.

8. The elastic testing device according to claim 7, characterized in that: A plug rod is fixedly installed at the bottom end of the top frame, a plug hole is formed on the front end of the two parts of the pick-and-place claw, the plug rod corresponds to the plug hole on the pick-and-place claw in the rotated detection position, the size of the plug rod is matched with the size of the plug hole, when the plug rod is inserted into the plug hole, the front end of the pick-and-place claw is opened, a blocking member is fixedly installed on the support column and located above the moving track of the pick-and-place claw, and the blocking member blocks the detected spring.

9. The elastic testing device according to claim 8, characterized in that: A side frame is fixedly installed on the support column, a plurality of conveying rollers are rotatably fitted on the side frame, the conveying belt is tensioned on the whole conveying rollers, the terminal end of the conveying path of the conveying belt is adjacent to the moving track of the pick-and-place claw, the conveying belt conveys the vertical spring to the pick-and-place claw, a conveying motor is fixedly installed on the side frame and connected with the conveying rollers in power, a guide limiting plate is fixedly installed on the side frame and located on the conveying path of the conveying belt, the guide limiting plate is symmetrically arranged in two parts on the two sides of the conveying belt, and the guide limiting plate guides the vertical spring to the pick-and-place claw.

10. A method of using a shaft pin sensor using the elastic testing device according to claim 9, characterized by, The steps include: S1: conveying the vertical spring to the conveying belt, and conveying the vertical spring to the pick-and-place claw by the conveying belt; S2: the pick-and-place claw receives the vertical spring and drives the vertical spring to the detection position. S3: the second detection rod presses the vertical spring, and the spring is pressed on the first detection rod, the taking and placing claw is opened, and then the first detection rod uses the shaft pin type sensor to test the elasticity of the spring.

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