Chain clamp spring press-in force and pop-up force detection device and detection method

Abstract

A chain snap spring press-in force and pop-up force detection device relates to the technical field of chain quality detection, and comprises a base, a workbench, detection stations and a detection mechanism, the workbench is arranged at the upper end of the base, and a plurality of detection stations are arranged at the top end of the workbench along the Y-axis direction; the plurality of detection stations are respectively used for detecting press-in force and pop-up force of snap springs of chains of different models, a detection mechanism is arranged between the upper end of the base and the workbench, the detection mechanism is connected with the upper end of the base through a driving mechanism, and the driving mechanism is used for driving the detection mechanism to move in the X-axis direction, the Y-axis direction and the Z-axis direction. The detection mechanism is arranged on the base, the detection mechanism is matched with each detection station through movement, a control mechanism is arranged in the base, the detection mechanism is in signal connection with the control mechanism through a wire, and the control mechanism is configured to control the driving mechanism and the detection mechanism. The press-in force and the pop-up force of the snap spring are detected, operation is easy, precision is high, and efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of chain quality detection, and in particular to a device and method for detecting the pressing force and ejecting force of a chain clip spring. Background Art

[0002] Roller chains and bushing chains are common transmission parts in machinery, and are widely used in many industries such as automobiles, motorcycles, bicycles, agricultural machinery and equipment, industrial equipment, engineering machinery, food and textile machinery, lifting machinery, shipbuilding and military machinery. Roller chains and bushing chains are also the most used products and have become basic mechanical accessories. Common roller chains or bushing chains are mainly composed of three parts: inner links, outer links and connecting links. After the chain is assembled, the inner links and outer links have formed an integral component, which cannot be freely disassembled and assembled during use; and the chain's ring connection is mainly achieved by disconnecting and connecting the connecting links to complete the installation and disassembly of the chain.

[0003] The commonly used locking method for connecting chain links is the locking method of the retaining spring (elastic locking piece). The stability of the retaining spring plays a very important role in the operation of the chain. If the chain retaining spring fails and falls off, it will directly cause the chain to break, causing immeasurable damage to the mechanical equipment. Therefore, after the chain retaining spring is manufactured, it is necessary to test the pressing force and ejection force of the retaining spring. At present, the universal material testing machine is mainly used to test the pressing force and ejection force of the retaining spring. (1) The specific pressing force detection method is: Fig.11 As shown, fix the connecting chain link on the lower table of the universal material testing machine, install the connecting chain plate and place the circlip opening downward in advance at the snap-in position, adjust the circlip push plate fixture installed on the upper table of the testing machine, and perform a press-in force test on the sample at a predetermined loading speed; (2) The specific pop-up force detection method is: Fig.12 As shown, the connecting chain link with the retaining spring is fixed on the lower table of the universal material testing machine, the retaining spring opening is adjusted to face the upper surface of the testing machine, and the sample is subjected to pressure test at a predetermined loading speed; the disadvantages of this measurement method are: using the universal material testing machine, the measuring range and resolution of the equipment are large, and the retaining spring pop-up force range is in the range of 30N-300N, resulting in low measurement accuracy; special fixtures need to be made according to the chain specifications and models to fix the connecting chain links or chains, which requires high operating ability of the inspection personnel; the inspection efficiency is slow, and batch inspection of retaining spring parts cannot be realized. Summary of the invention

[0004] The invention discloses a chain clip spring pressing force and ejection force detection device and detection method, aiming to overcome the drawbacks of the existing chain clip spring pressing force and ejection force detection method described in the background technology part.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A chain spring compression force and pop-up force detection device comprises a base, a workbench, a detection station, and a detection mechanism. The upper end of the base is connected to the workbench through a support plate. The length direction of the workbench is the Y-axis direction, the width direction is the X-axis direction, and the height direction is the Z-axis direction. A plurality of detection stations are arranged along the Y-axis direction on the top of the workbench. The plurality of detection stations are respectively used to detect the compression force and pop-up force of the springs of chains of different models. A detection mechanism is provided between the upper end of the base and the workbench. The detection mechanism is connected to the upper end of the base through a driving mechanism. The driving mechanism is used to drive the detection mechanism to move along the X-axis direction, the Y-axis direction, and the Z-axis direction. The detection mechanism cooperates with each detection station through movement. A control mechanism is provided in the base. The detection mechanism is connected to the control mechanism signal through a wire. The control mechanism is configured to control the driving mechanism and the detection mechanism.

[0007] Preferably, the driving mechanism includes a first linear driving unit for driving the detection mechanism to move along the Y-axis direction, a second linear driving unit for driving the detection mechanism to move along the X-axis direction is provided on the top of the moving end of the first linear driving unit, and a third linear driving unit for driving the detection mechanism to move along the Z-axis direction is provided on the top of the moving end of the second linear driving unit. The detection mechanism includes a pressure sensor arranged at the moving end of the third linear driving unit toward the negative end of the X-axis, and a retaining spring push plate is fixedly connected to the outer end of the pressure sensor; the first linear driving unit, the second linear driving unit, and the third linear driving unit are driven by the first servo motor, the second servo motor, and the third servo motor respectively, the pressure sensor is connected to the control mechanism signal through a wire, the first servo motor, the second servo motor, and the third servo motor are electrically connected to the control mechanism through a wire, and the control mechanism is electrically connected to the power module.

[0008] Preferably, the workbench is a C-shaped structure, and both ends of the Y-axis and the negative end of the Z-axis of the lower surface of the workbench are fixedly connected to the upper end of the base through support plates.

[0009] Preferably, the detection station includes a chain positioning block 1 and a chain positioning block 2 connected together in a 90° angle shape, the chain positioning block 1 is arranged along the X-axis direction, and the inner end of the chain positioning block 1 is provided with a positioning tooth matching the chain to be detected, the chain positioning block 2 is arranged along the Y-axis direction, and the outer surface of the chain positioning block 2 is aligned with the end of the workbench facing the positive direction of the X-axis, the chain positioning block 1 and the chain positioning block 2 are fixedly connected to the upper end of the workbench, and a chain positioning slider is also provided on the upper surface of the workbench and located on the inner side of the 90° angle shape, the chain positioning slider moves along the angular midline inside the 90° angle shape, the chain positioning slider is a right-angled triangle structure and is at a 90° angle toward one end of the chain, the bottom end of the chain positioning slider is slidably connected to the workbench through a linear slide rail, and the hypotenuse of the chain positioning slider is connected to a driving assembly.

[0010] Preferably, the driving assembly includes a driving rod, a fixed seat, and an operating rod. One end of the driving rod is fixedly connected to the hypotenuse of the chain positioning slider, and the other end is connected to the bottom end of the operating rod through a connecting arm. The driving rod is also covered with a sliding sleeve, and the bottom end of the sliding sleeve is fixedly connected to the top end of the fixed seat. The bottom end of the operating rod is also fixedly connected to a connecting plate, and the bottom end of the connecting plate is hinged to the side of the top end of the fixed seat away from the driving rod. One end of the connecting arm is hinged to the end of the driving rod, and the other end is hinged to the connecting plate.

[0011] Preferably, the chain positioning slider is provided with a through hole along the direction of the midline of the right angle, and an extrusion plate passes through the through hole, and the extrusion plate is connected to the through hole through a reset spring. When the reset spring is in a natural state, the end of the extrusion plate is exposed from the right angle end of the chain positioning slider, and a miniature proximity switch is embedded in the end of the driving rod. When the end of the extrusion plate is pressed against the sleeve or roller at the corner of the chain to be detected at a 90° angle, the end of the extrusion plate away from the sleeve or roller triggers the miniature proximity switch. At this time, the chain to be detected is positioned between the chain positioning slider, chain positioning block one, and chain positioning block two, and the miniature proximity switch is connected to the control mechanism signal through a wire.

[0012] Preferably, a trapezoidal groove is provided at the front end of the retaining spring push plate, and the shape and size of the trapezoidal groove match the shape and size of the end of the retaining spring.

[0013] Preferably, the control mechanism is a PLC controller, and the front end of the base is also provided with a knob, an X / Y / Z axial servo drive linear track conversion knob, a magnification adjustment knob, and a human-machine exchange touch screen.

[0014] A method for detecting the pressing force and ejection force of a chain retaining spring, using a device for detecting the pressing force and ejection force of a chain retaining spring, comprising the following steps: (1) obtaining a chain inspection sample, the sample being pre-linked, and the pin shaft end at the link being provided with a ring groove matching the retaining spring; (2) positioning the chain at a detection station: fitting the connecting link and the rear end connecting link of the chain to the inner side of a chain positioning block 1 and meshing with the positioning teeth, fitting the link on the other side of the connecting link to the inner side of a chain positioning block 2, and starting the chain positioning slider to press the chain; (3) measuring the pressing force value of the retaining spring and the connecting link automatically or manually, and then measuring the pressure value of the retaining spring and the connecting link. The pop-out force value of the joint: when measuring the pressing force value, the open end of the retaining spring faces the side away from the retaining spring push plate and is located at the work station on the connecting link where the retaining spring is to be installed, and the retaining spring is installed in place by means of the retaining spring push plate; when measuring the pop-out force value, the open end of the retaining spring faces the side of the retaining spring push plate and is sleeved on the upper end of the connecting link in the position where the retaining spring has been installed, and the retaining spring is pushed out of the pin ring groove of the connecting link by means of the retaining spring push plate; (4) repeat step (3) until all sample parts are measured, and record the peak value of the retaining spring pressing force and the time when the retaining spring is subjected to force from the beginning to the end of the pressing force, and record the peak value of the retaining spring pop-out force and the time when the retaining spring is subjected to force from the beginning to the end of the pop-out force.

[0015] Preferably, in the step (1), the diameter of the annular groove of the pin shaft is selected to be the lower limit of the design tolerance.

[0016] Preferably, in the step (3), the detection of the retaining spring follows the principle of first measuring the compression force of the retaining spring and then measuring the ejection force of the retaining spring, and the compression force and ejection force of the same retaining spring are not repeatedly measured.

[0017] The beneficial effects of the chain clamp spring pressing force and ejection force detection device and detection method of the present invention are as follows:

[0018] The present invention designs special tooling equipment for detecting the pressing force and pop-up force of the retaining springs of roller chains and sleeve chain products, and formulates a detection method for chain retaining springs (elastic locking plates). The present invention completes sample measurement through mechanical hardware, and writes the detection method into the system through PIC programming control. The operator can obtain the required test data through simple operations, thereby realizing high-precision, high-efficiency and professional detection of chain retaining springs (elastic locking plates). BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments, and constitutes a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0020] Figure 1 , a schematic diagram of the three-dimensional structure of the present invention (the coordinate system in the figure is the coordinate system formed by the driving directions of the three linear drive units);

[0021] Figure 2 , a schematic diagram of the local structure of A of the present invention;

[0022] Figure 3 , the present invention detects the chain positioning of the workstation Figure 1 ;

[0023] Figure 4 , the present invention detects the chain positioning of the workstation Figure 2 ;

[0024] Figure 5 , the present invention detects the chain positioning of the workstation Figure 3 ;

[0025] Figure 6 , a schematic diagram of the arrangement of the detection stations of the present invention;

[0026] Figure 7 , schematic diagram of detection of pressing force of the retaining spring of the present invention;

[0027] Figure 8 , schematic diagram of detection of spring ejection force of the retaining spring of the present invention;

[0028] Fig. 9 , the human-machine exchange interface diagram of the present invention;

[0029] Fig.10 , a flow chart of the method for detecting the pressing force and ejecting force of the retaining spring (elastic locking piece) of the present invention;

[0030] Fig.11 , Schematic diagram of detecting the pressing force of the retaining spring in the prior art;

[0031] Fig.12 , Schematic diagram of detecting the pop-up force of the retaining spring in the prior art;

[0032] 001, base; 002, human-machine exchange touch screen; 003, knob; 004, X / Y / Z axial servo drive linear rail conversion knob; 005, magnification adjustment knob; 006, first servo motor; 007, second servo motor; 008, third linear drive unit; 009, support plate; 1, fixed seat; 2, connecting plate; 3, connecting arm; 4, sliding sleeve; 5, linear slide; 6, extrusion plate; 7, cable protection chain; 8, chain positioning assembly; 81, drive rod; 82, joystick; 83, handle; 9, workbench; 10, pressure sensor; 101, spring push plate; 102, chain positioning block 1; 103, chain positioning slider; 104, 428 type 105, 420 test chain; 106, 520 test chain; 107, micro proximity switch; 11, chain positioning block 2; 111, power switch; 12, retaining ring (elastic locking piece); 121, grooved pin shaft; 13, inspection station; 130, 420 chain clamping station; 131, 428 chain clamping station; 132, 520 chain clamping station; 14, chain to be inspected; 140, grooved connecting chain link (with annular groove at the end of the pin shaft); 141, connecting chain plate; 15, upper table of universal material testing machine; 16, lower table of universal material testing machine; 17, retaining ring push plate fixture; 18, connecting chain link fixing fixture. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The following embodiments may be understood as explaining a partial configuration of the present invention alone, or may be understood as explaining a wider range of configurations of the present invention through a combination of a plurality of embodiments.

[0035] Example 1

[0036] A chain spring compression force and ejection force detection device, such as Figure 1-10As shown, it includes a base 001, a workbench 9, a detection station 13, and a detection mechanism. The upper end of the base 001 is connected to the workbench 9 through a support plate 009. The length direction of the workbench 9 is the Y-axis direction, the width direction is the X-axis direction, and the height direction is the Z-axis direction. A plurality of detection stations 13 are arranged along the Y-axis direction on the top of the workbench. The plurality of detection stations 13 are respectively used to detect the pressing force and the pop-up force of the retaining springs of different types of chains. A detection mechanism is provided between the upper end of the base 001 and the workbench 9. The detection mechanism is connected to the upper end of the base 001 through a driving mechanism. The driving mechanism is used to drive the detection mechanism to move along the X-axis direction, the Y-axis direction, and the Z-axis direction. The detection mechanism cooperates with each detection station 13 through the movement. A control mechanism is provided in the base 001. The detection mechanism is connected to the control mechanism signal through a wire. The control mechanism is configured to control the driving mechanism and the detection mechanism.

[0037] Example 2

[0038] On the basis of Example 1, this embodiment discloses: the driving mechanism includes a first linear driving unit for driving the detection mechanism to move along the Y-axis direction, a second linear driving unit for driving the detection mechanism to move along the X-axis direction is provided on the top of the moving end of the first linear driving unit, a third linear driving unit for driving the detection mechanism to move along the Z-axis direction is provided on the top of the moving end of the second linear driving unit, the detection mechanism includes a pressure sensor 10 provided at the moving end of the third linear driving unit facing the negative end of the X-axis, and a retaining spring push plate 101 is fixedly connected to the outer end of the pressure sensor 10; the first linear driving unit, the second linear driving unit, and the third linear driving unit 008 are driven by the first servo motor 006, the second servo motor 007, and the third servo motor respectively, the pressure sensor 10 is connected to the control mechanism signal through a wire, the first servo motor 006, the second servo motor 007, and the third servo motor are electrically connected to the control mechanism through a wire, and the control mechanism is electrically connected to the power module.

[0039] In this embodiment, the first to third linear drive units can adopt a commonly used ball screw mechanism, wherein the slider screwed on the screw constitutes a moving end, and a mature product available on the market can be purchased, wherein the first linear drive unit is used to drive the detection mechanism to move along the Y-axis direction, so that the detection mechanism can detect multiple detection stations arranged along the Y-axis direction, and the second linear drive unit is arranged at the top of the moving end of the first linear drive unit, that is, the screw of the second linear drive unit is arranged along the X-axis direction, and it drives its screwed moving end to drive the detection mechanism to move along the X-axis, so that the spacing between the detection mechanism and the retaining spring can be adjusted, and the detection action of pushing the retaining spring to be pressed in or ejected can be realized; wherein, the third linear drive unit is located at the top of the moving end of the second linear drive unit, and the screw of the third linear drive unit is arranged along the Z-axis direction, and it can drive the screwed moving end thereon to drive the detection mechanism to move up and down, so that the height of the detection mechanism matches the height of the retaining spring. In summary, under the control of the control mechanism of the first to third servo motors, the detection mechanism can achieve precise positioning of the retaining spring. Among them, the detection mechanism includes a pressure sensor 10 and a spring push plate 101. The spring push plate is used to apply a thrust to the end of the spring, so that the spring is stuck in the assembly position or disengaged from the assembly position. The pressure sensor is used to detect the pressure during the test, that is, the pressing force or elastic force exerted on the spring.

[0040] Example 3

[0041] In a further embodiment, Figure 1 As shown, the workbench 9 is a C-shaped structure, and both ends of the Y-axis and the negative end of the Z-axis of the lower surface of the workbench 9 are fixedly connected to the upper end of the base 001 through support plates 009 respectively.

[0042] Example 4

[0043] Based on the above embodiments, this embodiment discloses, Figure 1-8 As shown, the detection station 13 includes a chain positioning block 102 and a chain positioning block 11 connected together in a 90° angle shape. The chain positioning block 102 is arranged along the X-axis direction, and the inner side end of the chain positioning block 102 is provided with a positioning tooth (such as Figure 3 As shown, not marked in the figure), the chain positioning block 11 is arranged along the Y-axis, and the outer surface of the chain positioning block 11 is aligned with the end of the workbench 9 facing the positive direction of the X-axis. The chain positioning block 102 and the chain positioning block 11 are fixedly connected to the upper end of the workbench 9, and a chain positioning slider 103 is also provided on the upper surface of the workbench 9 and located on the inner side of the 90° angle shape. The chain positioning slider 103 moves along the angular midline of the inner side of the 90° angle shape. The chain positioning slider 103 is a right-angled triangle structure and is at a 90° angle toward one end of the chain. The bottom end of the chain positioning slider 103 is slidably connected to the workbench 9 through a linear slide rail 5, and the hypotenuse of the chain positioning slider 103 is connected to a driving component.

[0044] Further, such as Figure 7 As shown, the driving assembly includes a driving rod 81, a fixed seat 1, and an operating rod 82. One end of the driving rod 81 is fixedly connected to the hypotenuse of the chain positioning slider 103, and the other end is connected to the bottom end of the operating rod 82 through a connecting arm 3. The driving rod 81 is also sleeved with a sliding sleeve 4, and the bottom end of the sliding sleeve 4 is fixedly connected to the top of the fixed seat 1. The bottom end of the operating rod 82 is also fixedly connected to a connecting plate 2, and the bottom end of the connecting plate 2 is hinged to the side of the top of the fixed seat 1 away from the driving rod 81. One end of the connecting arm 3 is hinged to the end of the driving rod 81, and the other end is hinged to the connecting plate 2.

[0045] In this embodiment, Figure 3-5 As shown, the driving method of the chain positioning slider 103 is given. When in use, the joystick 82 is pushed forward, and the driving rod moves along the set trajectory under the guidance of the sleeve and the linear slide rail, and finally the chain 14 to be detected is positioned between the chain positioning block 1, the chain positioning block 2, and the chain positioning slider 103. After positioning, the retaining ring is installed at the specified position (the top of the pin shaft connecting the chain links), and the detection mechanism can be used for detection.

[0046] Example 5

[0047] Based on Example 4, this embodiment further discloses that, Figure 4 As shown, the chain positioning slider 103 is provided with a through hole (not shown in the figure) along the direction of the midline of the right angle, and an extrusion plate 6 is passed through the through hole, and the extrusion plate 6 is connected to the through hole through a reset spring. When the reset spring is in a natural state, the end of the extrusion plate 6 is exposed from the right angle end of the chain positioning slider 103, and the end of the driving rod 81 is embedded with a micro proximity switch 107. When the end of the extrusion plate 6 is pressed against the sleeve or roller at the corner of the chain 14 to be detected at a 90° angle, the end of the extrusion plate 6 away from the sleeve or roller triggers the micro proximity switch 107. At this time, the chain 14 to be detected is positioned between the chain positioning slider, the chain positioning block one, and the chain positioning block two, and the micro proximity switch 107 is connected to the control mechanism signal through a wire; after the controller receives the signal, the detection mechanism can be started for detection.

[0048] Example 6

[0049] Further, such as Figure 4 As shown, the front end of the spring push plate 101 is provided with a trapezoidal groove, and the shape and size of the trapezoidal groove match the shape and size of the end of the spring 12. Fig.11 , 12 As shown in the figure, the specific structural shape of the retaining spring is given. By setting the trapezoidal groove, it can better match the end of the retaining spring and avoid interference with the pin shaft when the retaining spring is ejected.

[0050] Example 7

[0051] Based on the above embodiments, this embodiment discloses, Figure 1 As shown, the control mechanism is a PLC controller (a commonly used structure, not shown in the figure), and the front end of the base 001 is also provided with a knob 003, an X / Y / Z axial servo drive linear track conversion knob 004 (i.e., the first to third linear drive unit conversion knob), a magnification adjustment knob 005, and a human-machine exchange touch screen 002.

[0052] Example 8

[0053] Based on the above embodiments, this embodiment discloses: a method for detecting the pressing force and ejection force of a chain retaining spring, such as Figure 1-10 As shown, a chain retaining spring compression force and ejection force detection device is used, including the following steps: (1) obtaining a chain inspection sample, the sample is pre-linked, and the pin end at the link is provided with a ring groove matching the retaining spring (reference Fig.11 (2) Position the chain at the inspection station: fit the connecting link and the rear-end connecting link of the chain to the inner side of the first chain positioning block and mesh with the positioning teeth. Fit the link on the other side of the connecting link to the inner side of the second chain positioning block. Start the chain positioning slider to tighten the chain. (3) Automatically or manually measure the pressing force of the retaining spring and the connecting link, and then measure the pop-up force of the retaining spring and the connecting link: When measuring the pressing force, the open end of the retaining spring faces the side away from the retaining spring push plate and is at the station on the connecting link ready to install the retaining spring (see Fig.11 As shown), install the retaining spring in place through the retaining spring push plate; when measuring the pop-up force value, the open end of the retaining spring faces the retaining spring push plate and is placed on the upper end of the connecting link in the position where the retaining spring has been installed (refer to Fig.12 (as shown), push the retaining spring out of the pin ring groove of the connecting link by means of the retaining spring push plate; (4) repeat step (3) until all sample parts are measured, and record the retaining spring compression force peak value and the retaining spring stress time from the beginning to the end of the compression, and record the retaining spring ejection force peak value and the retaining spring stress time from the beginning to the end of the ejection.

[0054] Example 9

[0055] Based on Example 8, this embodiment discloses that in the step (1), the annular groove diameter of the pin shaft is selected as the lower limit size of the design tolerance.

[0056] In the step (3), the detection of the retaining spring follows the principle of first measuring the compression force of the retaining spring and then measuring the ejection force of the retaining spring, and the compression force and ejection force of the same retaining spring are not repeatedly measured.

Claims

1. A device for detecting the pressing force and ejection force of a chain retaining spring, characterized in that it comprises a base, a workbench, a detection station, and a detection mechanism, wherein the upper end of the base is connected to the workbench through a supporting plate, and the length direction of the workbench is assumed to be the Y-axis direction, the width direction is the X-axis direction, and the height direction is the Z-axis direction. A plurality of detection stations are arranged along the Y-axis direction on the top of the workbench, and the plurality of detection stations are respectively used to detect the pressing force and ejection force of retaining springs of chains of different models. A detection mechanism is provided between the upper end of the base and the workbench, and the detection mechanism is connected to the upper end of the base through a driving mechanism, and the driving mechanism is used to drive the detection mechanism to move along the X-axis direction, the Y-axis direction, and the Z-axis direction, and the detection mechanism cooperates with each detection station through the movement. A control mechanism is provided in the base, and the detection mechanism is connected to the control mechanism signal through a wire, and the control mechanism is configured to control the driving mechanism and the detection mechanism.

2. A chain clip spring pressing force and ejection force detection device as claimed in claim 1, characterized in that: The driving mechanism includes a first linear driving unit for driving the detection mechanism to move along the Y-axis direction, a second linear driving unit for driving the detection mechanism to move along the X-axis direction is provided on the top of the moving end of the first linear driving unit, and a third linear driving unit for driving the detection mechanism to move along the Z-axis direction is provided on the top of the moving end of the second linear driving unit. The detection mechanism includes a pressure sensor provided at the moving end of the third linear driving unit facing the negative end of the X-axis, and a spring push plate is fixedly connected to the outer end of the pressure sensor; the first linear driving unit, the second linear driving unit, and the third linear driving unit are driven by the first servo motor, the second servo motor, and the third servo motor respectively, the pressure sensor is connected to the control mechanism signal through a wire, the first servo motor, the second servo motor, and the third servo motor are electrically connected to the control mechanism through a wire, and the control mechanism is electrically connected to the power module.

3. A chain clip spring pressing force and ejection force detection device as claimed in claim 2, characterized in that: The workbench is a C-shaped structure, and both ends of the Y-axis and the negative end of the Z-axis of the lower surface of the workbench are fixedly connected to the upper end of the base through support plates.

4. A chain clip spring pressing force and ejection force detection device as claimed in claim 3, characterized in that: The detection station includes a chain positioning block 1 and a chain positioning block 2 connected together in a 90° angle shape. The chain positioning block 1 is arranged along the X-axis direction, and the inner end of the chain positioning block 1 is provided with a positioning tooth matching the chain to be detected. The chain positioning block 2 is arranged along the Y-axis direction, and the outer surface of the chain positioning block 2 is aligned with the end of the workbench facing the positive direction of the X-axis. The chain positioning block 1 and the chain positioning block 2 are fixedly connected to the upper end of the workbench, and a chain positioning slider is also provided on the upper surface of the workbench and located on the inner side of the 90° angle shape. The chain positioning slider moves along the angular midline inside the 90° angle shape. The chain positioning slider is a right-angled triangle structure and is at a 90° angle toward one end of the chain. The bottom end of the chain positioning slider is slidably connected to the workbench through a linear slide rail, and the hypotenuse of the chain positioning slider is connected to a driving assembly.

5. A chain clip spring pressing force and ejection force detection device as claimed in claim 4, characterized in that: The driving assembly includes a driving rod, a fixed seat, and an operating rod. One end of the driving rod is fixedly connected to the hypotenuse of the chain positioning slider, and the other end is connected to the bottom end of the operating rod through a connecting arm. The driving rod is also covered with a sliding sleeve, and the bottom end of the sliding sleeve is fixedly connected to the top end of the fixed seat. The bottom end of the operating rod is also fixedly connected to a connecting plate, and the bottom end of the connecting plate is hinged to the side of the top end of the fixed seat away from the driving rod. One end of the connecting arm is hinged to the end of the driving rod, and the other end is hinged to the connecting plate.

6. A chain clip spring pressing force and ejection force detection device as claimed in claim 5, characterized in that: The chain positioning slider is provided with a through hole along the direction of the midline of the right angle, and an extrusion plate passes through the through hole. The extrusion plate is connected to the through hole through a reset spring. When the reset spring is in a natural state, the end of the extrusion plate is exposed from the right angle end of the chain positioning slider. The end of the driving rod is embedded with a micro proximity switch. When the end of the extrusion plate is pressed against the sleeve or roller at the corner of the chain to be detected at a 90° angle, the end of the extrusion plate away from the sleeve or roller triggers the micro proximity switch. At this time, the chain to be detected is positioned between the chain positioning slider, the chain positioning block one, and the chain positioning block two. The micro proximity switch is connected to the control mechanism signal through a wire.

7. A chain clip spring pressing force and ejection force detection device as claimed in claim 6, characterized in that: A trapezoidal groove is provided at the front end of the clamping spring push plate, and the shape and size of the trapezoidal groove match the shape and size of the end of the clamping spring.

8. A chain clip spring pressing force and ejection force detection device as claimed in claim 7, characterized in that: The control mechanism is a PLC controller, and the front end of the base is also provided with a knob, an X / Y / Z axial servo drive linear track conversion knob, a magnification adjustment knob, and a human-machine exchange touch screen.

9. A method for detecting the pressing force and ejection force of a chain retaining spring, characterized by: A chain retaining spring compression force and pop-up force detection device as described in claim 8 comprises the following steps: (1) obtaining a chain inspection sample, the sample is pre-linked, and the pin shaft end at the link is provided with a ring groove matching the retaining spring; (2) positioning the chain at the inspection station: the connecting link of the chain and the link connected at the rear end are fitted to the inner side of the first chain positioning block and meshed with the positioning teeth, the link on the other side of the connecting link is fitted to the inner side of the second chain positioning block, and the chain positioning slider is started to press the chain; (3) automatically or manually measuring the compression force value of the retaining spring and the connecting link, and then measuring the pop-up force value of the retaining spring and the connecting link. Force value: When measuring the compression force value, the open end of the retaining spring faces the side away from the retaining spring push plate and is located at the station on the connecting link where the retaining spring is to be installed, and the retaining spring is installed in place by means of the retaining spring push plate; when measuring the pop-out force value, the open end of the retaining spring faces the side of the retaining spring push plate and is sleeved on the upper end of the connecting link in the position where the retaining spring has been installed, and the retaining spring is pushed out of the pin ring groove of the connecting link by means of the retaining spring push plate; (4) Repeat step (3) until all sample parts are measured, and record the peak compression force of the retaining spring and the time the retaining spring is subjected to force from the start of the retaining spring to the end of the retaining spring, and record the peak pop-out force of the retaining spring and the time the retaining spring is subjected to force from the start of the pop-out of the retaining spring to the end of the pop-out of the retaining spring.

10. A method for detecting the pressing force and ejection force of a chain retaining spring according to claim 9, characterized in that: In the step (1), the ring groove diameter of the pin shaft is selected as the lower limit size of the design tolerance; in the step (3), the spring detection follows the principle of first measuring the spring compression force and then measuring the spring pop-up force, and the compression force and pop-up force of the same spring are not measured repeatedly.

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