A quality inspection platform and method for E-shaped load cells

Abstract

A quality inspection platform and method for E-shaped load cells are disclosed, belonging to the category of testing devices. To address the problem of existing steel strip stretching methods using motor drives, which result in the motor constantly being under load and consuming excessive power, this invention utilizes a steel strip mounted on a steel strip support frame via a clamping and guiding mechanism, and kept taut under the action of a stretching mechanism. A connector panel is mounted on one side of the steel strip. The load cell is mounted on a support frame within a transmission mechanism. A detection guide rail is positioned between the transmission mechanism and the steel strip support frame. Push rod one and push rod two in a push-pull drive mechanism are mounted opposite each other on the detection guide rail. Push rod one is used to push the load cell out of the support frame and move it along the detection guide rail towards the steel strip side; push rod two is used to push the load cell out of the connector panel. A sensor actuation mechanism is installed at the end of the sensor transmission mechanism for separating qualified and unqualified products. This invention is primarily used for product quality inspection of E-shaped load cells.

Description

Technical Field

[0001] This invention pertains to testing devices, and more particularly relates to a quality inspection platform and method for E-shaped weighing sensors. Background Technology

[0002] The weighing device in the elevator car is an effective means of ensuring the safe operation of the elevator. It must prevent overloading while also improving the elevator's operating efficiency and quality. The weighing controller processes the signals collected by the weighing sensor under different loads and outputs light load, full load, and overload signals to the elevator control system. The system receives the signals and provides real-time feedback. Some elevators use E-shaped weighing sensors. The E-shaped weighing sensor is directly inserted into the steel belt connected to the elevator car. Under different loads, the steel belt deforms, causing the elastic element of the weighing sensor to deform as well. By sensing the strain of the elastic element under different loads, the output signal is obtained. Therefore, by detecting the output signal of the E-shaped weighing sensor within its range, the quality of the weighing sensor can be determined.

[0003] During the R&D and trial production phase of the load cell product, a dedicated testing device is needed to simulate the actual usage of the E-shaped load cell and to simulate the tensile condition of an elevator steel belt. For steel belt tensioning, a high-power servo motor is typically used to drive the tensioning device, and the two ends of the steel belt are clamped by a universal fixture to apply load until the load is maintained. After the test, the load is unloaded. However, in the mass production phase, this motor-driven tensioning device needs to remain in a constant load-maintaining state, resulting in continuous motor operation, increased power consumption, and relatively noisy motor drive noise.

[0004] Meanwhile, the strain difference signal output of the E-shaped load cell needs to be connected to the system through a lead wire for detection to determine the signal. However, the lead wires of the E-shaped load cell are relatively loose, making it difficult to fix and install them on automated detection devices, which leads to difficulties in detecting the sensor signal. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this invention provides a quality inspection platform and method for E-shaped weighing sensors. By adjusting the weight of the weight support plate and the weight of the weight in the steel strip stretching mechanism, passive stretching of the steel strip is achieved. By changing the sensor structure and the sensor push-pull drive mechanism, smooth sensor detection is achieved.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0007] A quality inspection platform for E-shaped load cells includes a steel strip support frame, a steel strip clamping and guiding mechanism, a steel strip stretching mechanism, a sensor transmission mechanism, a detection guide rail, a sensor push-pull drive mechanism, a connector panel, a sensor actuation mechanism, and a steel strip.

[0008] The steel strip is installed on the steel strip support frame via a steel strip clamping and guiding mechanism, and is in a taut state under the action of the steel strip tensioning mechanism; the connector panel is installed on the steel strip support frame and is located near the steel strip connector section; the sensor transmission mechanism is located on one side of the steel strip support frame, and the E-shaped load cell is installed on the sensor support frame of the sensor transmission mechanism;

[0009] The detection guide rail is located between the sensor transmission mechanism and the steel strip support frame. The inlet end of the detection guide rail is aligned with the sensor support frame on the sensor transmission mechanism, and the outlet end of the detection guide rail is aligned with the steel strip insertion section.

[0010] The sensor push-pull drive mechanism includes push rod one and push rod two, which are installed opposite each other on both sides of the detection guide rail. Push rod one is located on the side of the sensor transmission mechanism away from the detection guide rail and is used to push the E-shaped load cell out of the sensor support frame and move it along the detection guide rail toward the steel strip insertion section. Push rod two is used to push the E-shaped load cell out of the connector panel and detach it from the steel strip, and insert it into the detection guide rail.

[0011] The sensor actuation mechanism is installed at the end of the sensor transmission mechanism and is used to separate qualified and unqualified products.

[0012] Preferably, the steel strip support frame is in the shape of a door frame, and the right leg of the steel strip support frame is inserted into the steel strip stretching mechanism;

[0013] The steel strip clamping and guiding mechanism includes N guide pulleys, two steel strip clamps (first type), and one steel strip clamp (second type). The N guide pulleys are arranged sequentially along the frame structure of the steel strip support frame. The two steel strip clamps (first type) are installed vertically on the inner side of the left support leg of the steel strip support frame. The steel strip clamp (second type) is installed on the steel strip stretching mechanism. One end of the steel strip is fixed inside the two steel strip clamps (first type), and the other end of the steel strip passes through the sequentially arranged guide pulleys and is fixed on the steel strip clamp (second type).

[0014] Preferably, both the first and second steel strip clamps include a clamp connecting plate and a clamp cover plate. The clamp connecting plate has a vertical strip groove on the side facing the clamp cover plate, and the clamp cover plate has a corresponding strip protrusion on the side facing the clamp connecting plate. The end of the steel strip is located between the strip groove of the clamp connecting plate and the strip protrusion of the clamp cover plate, and is clamped by the clamp connecting plate and the clamp cover plate.

[0015] The clamp connecting plate of the first steel strip clamp is fixed on the left leg of the steel strip support frame, and the clamp connecting plate of the second steel strip clamp is fixed on the steel strip stretching mechanism.

[0016] Preferably, the steel strip stretching mechanism includes two bases, a hydraulic lifting assembly, a weight pan, and two sets of support assemblies; the two bases are respectively disposed on the inner and outer sides of the right support leg of the steel strip support frame, the weight pan is sleeved on the right support leg, and is slidably mounted on the two bases through the two sets of support assemblies; the second steel strip clamp is mounted on the weight pan and disposed near the inner side of the right support leg; the hydraulic lifting assembly is located in the middle of the two bases, and the drive end of the hydraulic lifting assembly abuts against the lower surface of the weight pan.

[0017] Preferably, the E-shaped load cell includes a sensor body, a wire harness, a connector mounting bracket, an upper connector, and a lower connector; the upper connector and the lower connector are respectively mounted on the connector mounting bracket, one end of the wire harness passes through the connector mounting bracket and is connected to the upper connector and the lower connector, and the other end of the wire harness is connected to the sensor body.

[0018] Preferably, each sensor support frame has a through mounting groove at its top and three through sliding grooves on its side end face; the connector fixing frame of the E-shaped load cell is installed in the mounting groove and can move back and forth along the slotting direction of the mounting groove; the sensor body of the E-shaped load cell is inserted into the sliding groove on the side, and the three metal strips of the sensor body are respectively set in one sliding groove, and the sensor body can move back and forth along the slotting direction of the sliding groove.

[0019] Preferably, the top of the detection guide rail has a long sliding groove 1 that runs through both the front and rear sides along the length of the detection guide rail, and the side end face of the detection guide rail has two long sliding grooves 2 that run through both the front and rear sides; when the E-shaped load cell is inside the detection guide rail, the connector fixing bracket is inside the long sliding groove 1, and the upper and lower metal strips of the sensor body are respectively inserted into the two long sliding grooves 2.

[0020] Preferably, the push rod includes a column, a telescopic rod, a sensor booster, and a connector booster; the telescopic rod is installed on the upper end of the column, and the drive end of the telescopic rod is set towards the E-shaped load cell; the sensor booster and the connector booster are respectively installed on the drive end of the telescopic rod to realize the push and pull of the E-shaped load cell.

[0021] The sensor booster has two push blocks, a hinge plate, and a pneumatic push rod arranged side by side on the side facing the E-shaped load cell. The two push blocks are arranged vertically and abut against the notches between two adjacent metal strips in the sensor body. The hinge plate is made of two plates hinged together. The connecting end of the pneumatic push rod is hinged to the sensor booster, and the driving end of the pneumatic push rod is hinged to the swing plate of the hinge plate.

[0022] The connector booster is provided with a pneumatic push rod 2, a hinge plate 2, and a push block 2 arranged sequentially from top to bottom on the side facing the E-shaped load cell; the hinge plate 2 is composed of two plates hinged together, the connecting end of the pneumatic push rod 2 is hinged to the connector booster, and the driving end of the pneumatic push rod 2 is hinged to the swing plate of the hinge plate 2; the push block 2 abuts against the connector fixing frame.

[0023] Preferably, the sensor actuation mechanism is installed at the end of the sensor transmission mechanism. The sensor actuation mechanism includes a third column, a third telescopic rod, and a U-shaped lever. The third telescopic rod is installed at the top of the third column, with the driving end of the third telescopic rod facing the sensor support frame. The lever is installed at the end of the third telescopic rod.

[0024] A quality inspection method for an E-shaped load cell, the specific quality inspection process is as follows:

[0025] S1, use the hydraulic lifting assembly to lift the weight pan to the designated position;

[0026] S2, one end of the steel belt is fixed in one of the two steel belt clamps, and the other end of the steel belt passes through the guide pulley and is fixed in the second steel belt clamp. The hydraulic lifting assembly falls.

[0027] S3, adjust the number of weights in the weight pan until the steel belt is at the tension when fully loaded;

[0028] S4. Install the E-shaped load cells sequentially on the sensor support frame in the sensor transmission mechanism.

[0029] S5, when the E-shaped load cell is transported to the entrance end of the detection guide rail by the sensor transmission mechanism, the barcode scanning camera scans the E-shaped load cell.

[0030] S6, push rod one clamps the E-shaped load cell and pushes it along the detection guide rail toward the steel strip side until the sensor body in the E-shaped load cell is stuck on the steel strip, and push rod one releases the E-shaped load cell.

[0031] S6, push rod two pushes the connector fixing bracket in the E-shaped load cell to move to the side until the upper connector is inserted into the connector panel, and the controller judges the performance of the load cell under test.

[0032] S7. After the E-shaped load cell completes the test, the push rod 2 pulls the connector fixing bracket out of the connector panel to its original position, the push rod 1 clamps the E-shaped load cell again, and pulls the E-shaped load cell back to the sensor support frame along the test guide rail.

[0033] S8, the sensor transmission mechanism continues to operate. When the E-shaped load cell reaches the position of the sensor actuation mechanism, the sensor actuation mechanism moves forward or backward under the control of the controller, so that the corresponding test product enters the corresponding box.

[0034] The beneficial effects of this invention compared to the prior art are:

[0035] 1. This invention is a dedicated testing device that can efficiently and accurately measure the performance of load cells without the need for professional testing personnel. Compared with using general high-power motor tensile testing devices to stretch steel strips, this device can reduce equipment costs. Based on the tensile device, it adds automated testing equipment, making it more convenient to realize the performance testing of load cells. Moreover, this testing device can be used continuously. In the long run, this testing device effectively reduces the waste of power resources and reduces noise pollution generated by motors.

[0036] 2. This invention, through the design of two steel strip clamps, several guide pulleys, and a steel strip stretching mechanism, enables the steel strip to be fixedly stretched, simulating the working conditions of the steel strip during elevator operation. A weighing sensor is directly inserted into the stretched steel strip to test its performance. Compared to a servo motor stretching platform, this device significantly saves power consumption and reduces environmental noise during motor operation. Because the excitation signal is unstable when using a motor for load-bearing stretching tests, leading to unstable output load during stretching, while the gravity stretching method using weights only requires one stretch to keep the steel strip in a constant state of tension, the gravity stretching method using fixed-value weights offers higher stability than servo motor stretching.

[0037] 3. Because the lead wires of the load cell are loose, it is difficult to fix them on the automated testing device. Therefore, a connector fixing bracket was designed for the wire harness and connector to facilitate the automated testing of the load cell. This reduces human intervention, lowers labor costs and usage risks, improves testing efficiency, and achieves the effect of mass production testing. Attached Figure Description

[0038] The accompanying drawings, which form part of this application, are provided to further illustrate the invention.

[0039] Figure 1 This is an overall assembly drawing of the weighing sensor quality inspection platform of the present invention;

[0040] Figure 2 This is an assembly drawing of the steel strip, steel strip support frame, steel strip clamping and guiding mechanism, and steel strip stretching mechanism of the present invention;

[0041] Figure 3 This is a structural schematic diagram of a hydraulic lifting assembly;

[0042] Figure 4 This is a structural schematic diagram of the steel strip clamp;

[0043] Figure 5 This is a schematic diagram of the steel strip clamp two.

[0044] Figure 6 This is a schematic diagram of the structure of an E-shaped load cell;

[0045] Figure 7 This is a schematic diagram showing the E-shaped load cell stuck on the steel strip;

[0046] Figure 8 This is a schematic diagram of the sensor transmission mechanism;

[0047] Figure 9 yes Figure 1 A magnified view of a section at point B1;

[0048] Figure 10 This is a structural schematic diagram of push rod one;

[0049] Figure 11 yes Figure 10 A magnified view of a section at point C1;

[0050] Figure 12 yes Figure 1 A magnified view of a section at point A1;

[0051] Figure 13 This is a schematic diagram of the push rod two;

[0052] Figure 14 This is a schematic diagram of the structure of the detection guide rail;

[0053] Figure 15 This is a schematic diagram of the sensor actuation mechanism.

[0054] Explanation of reference numerals in the attached drawings: A - Steel strip support frame; B - Steel strip clamping and guiding mechanism; C - Steel strip tensioning mechanism; D - Sensor transmission mechanism; E - Detection guide rail; F - Sensor push-pull drive mechanism; G - Connector panel; H - Sensor actuation mechanism; J - Steel strip; KE type load cell;

[0055] 1-Support base; 2-Door frame-shaped rigid frame; 3-Guide pulley; 4-Steel strip clamp one; 4-1-Clamp connecting plate one; 4-2-Clamp cover plate one; 4-1-1-Groove one; 4-2-1-Protrusion one; 5-Base; 6-Hydraulic lifting assembly; 6-1-Upper guide rail support plate; 6-2-Lower guide rail support plate; 6-3-Cross support rod; 6-3-1-Connecting rod one; 6-3-2-Connecting rod two; 6-3-3-Roller; 6 -4-Hydraulic push rod; 6-5-Hydraulic pump; 7-Weight pan; 7-1-Weight support pan; 7-1-1-Crossbeam; 7-2-Sleeve rod; 7-3-Weight; 8-Steel strip clamp II; 8-1-Clamp connecting plate II; 8-2-Clamp cover plate II; 8-1-1-"Concave" shaped connecting block; 8-1-2-Vertical connecting plate; 8-1-3-Groove II; 8-2-1-Protrusion II; 9-Support assembly; 9-1-Columnar guide rail; 9- 2-I-beam support block; 9-3-Spring; 10-Proximity sensor; 11-Sensor body; 12-Wire harness; 13-Connector fixing bracket; 14-Upper connector; 15-Lower connector; 16-Conveyor belt; 17-Drive motor; 18-Transmission roller; 19-Conveyor base; 20-Sensor support frame; 20-1-Mounting groove; 20-2-Elastic protrusion; 20-3-Slide groove; 21-Long slide groove one; 22-Long slide groove two; 23- Push rod 1; 23-1-Column 1; 23-2-Telescopic rod 1; 23-3-Push block 1; 23-4-Hinge plate 1; 23-5-Pneumatic push rod 1; 23-6-Pneumatic push rod 2; 23-7-Hinge plate 2; 23-8-Push block 2; 24-Push rod 2; 24-1-Column 2; 24-2-Telescopic rod 2; 24-3-Auxiliary push rod; 25-Column 3; 26-Telescopic rod 3; 27-Pulse block; 28-QR code camera. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] See Figures 1 to 15 This application provides a quality inspection platform for an E-shaped weighing sensor, which includes a steel strip support frame A, a steel strip clamping and guiding mechanism B, a steel strip stretching mechanism C, a sensor transmission mechanism D, a detection guide rail E, a sensor push-pull drive mechanism F, a connector panel G, a sensor actuation mechanism H, and a steel strip J.

[0058] See Figure 1 and Figure 2 The steel strip J is a flat metal strip with a certain degree of flexibility. One end of the steel strip J is fixedly installed on one side inside the steel strip support frame A, and the other end of the steel strip J is installed on the steel strip tensioning mechanism C and is in a taut state.

[0059] See Figure 2 The steel strip support frame A is used for the installation and support of the steel strip J and the connector panel G; it includes a support base 1 and a portal frame-shaped rigid frame 2; the left leg of the portal frame-shaped rigid frame 2 is fixedly installed on the support base 1 to ensure the stability of the steel strip support frame A, and the right leg of the portal frame-shaped rigid frame 2 is inserted into the steel strip tensioning mechanism C and can generate relative vertical displacement with the steel strip tensioning mechanism C. The connector panel G is installed on the side of the left leg facing the sensor transmission mechanism D.

[0060] See Figure 2 The steel strip clamping and guiding mechanism B is used to fix the steel strip J and keep it taut. It includes N guide pulleys 3, two steel strip clamps 4, and one steel strip clamp 8. The N guide pulleys 3 are arranged sequentially on the inner side of the left leg, the lower surface of the upper crossbeam, and the inner side of the right leg of the portal frame 2 to guide and support the steel strip J, so as to ensure that the steel strip on the left leg side is always in a vertical state. The two steel strip clamps 4 are installed vertically on the inner side of the left leg of the portal frame 2 and are set near the support base 1. The steel strip clamp 8 is installed on the steel strip tensioning mechanism C. One end of the steel strip J is installed in the two steel strip clamps 4 to fix one end of the steel strip J. The other end of the steel strip J passes through the sequentially arranged guide pulleys 3 and is fixed on the steel strip clamp 8.

[0061] Furthermore, there are 5 guide pulleys 3. One guide pulley 3 is installed at the middle position of each of the two support legs, one guide pulley 3 is installed at each of the two included corners of the door frame-shaped steel frame 2, and one guide pulley 3 is installed under the crossbeam of the door frame-shaped steel frame 2; the steel strip J also takes the shape of a door frame under the guidance of the 5 guide pulleys 3.

[0062] Furthermore, the outer circumferential wall of the guide pulley 3 has a groove along the circumferential direction, and the steel belt J is located in the groove to prevent the steel belt J from moving axially.

[0063] Furthermore, such as Figure 4 As shown, the steel strip clamp 4 includes a clamp connecting plate 4-1 and a clamp cover plate 4-2. The clamp connecting plate 4-1 has a U-shaped structure. Two bolt holes are opened on each side of the clamp connecting plate 4-1. The clamp connecting plate 4-1 is fitted onto the left support leg of the door frame-shaped rigid frame 2 and is fixedly installed on the left support leg by the bolt holes and bolts on both sides. Four bolt holes are opened on the front side of the clamp connecting plate 4-1. Four bolt holes are opened at corresponding positions on the clamp cover plate 4-2. The clamp cover plate 4-2 is fastened onto the clamp connecting plate 4-1 and is fixedly connected by the bolt holes and bolts.

[0064] Furthermore, a vertical groove 4-1-1 is provided on the front surface of the clamp connecting plate 4-1 facing the clamp cover plate 4-2, and a vertical protrusion 4-2-1 is provided on the side of the clamp cover plate 4-2 facing the clamp connecting plate 4-1. The steel strip J is located between the groove 4-1-1 and the protrusion 4-2-1, and is fixed by clamping the two.

[0065] Furthermore, a wavy ruler is provided in the groove 4-1-1 along the longitudinal direction and serrations are provided in the transverse direction. A wavy ruler that matches the groove 4-1-1 is provided in the protrusion 4-2-1 along the longitudinal direction and serrations that match the groove 4-1-1 are provided in the transverse direction of the protrusion 4-2-1, so as to further ensure the firmness of the steel strip J end installation.

[0066] Furthermore, such as Figure 5 As shown, the steel strip clamp 2 8 includes a clamp connecting plate 2 8-1 and a clamp cover plate 2 8-2. The clamp connecting plate 2 8-1 is fixedly installed on the crossbeam 7-1-1, and the clamp cover plate 2 8-2 is installed on the clamp connecting plate 2 8-1. The end of the steel strip J is located between the clamp connecting plate 2 8-1 and the clamp cover plate 2 8-2.

[0067] Furthermore, the clamp connecting plate 8-1 includes a concave connecting block 8-1-1 and a vertical connecting plate 8-1-2. The connecting block 8-1-1 is connected to the crossbeam 7-1-1 through bolt holes on both side plates and bolts. The vertical connecting plate 8-1-2 is installed on the top of the connecting block 8-1-1. The vertical connecting plate 8-1-2 has two sets of bolt holes. On the side of the vertical connecting plate 8-1-2 facing the clamp cover plate 8-2, there is a vertical groove 8-1-3. The groove 8-1-3 is located between the two sets of bolt holes.

[0068] The clamp cover plate 8-2 has two sets of bolt holes corresponding to the vertical connecting plate 8-1-2, and the clamp cover plate 8-2 facing the vertical connecting plate 8-1-2 has a protrusion 8-2-1 that cooperates with the groove 8-1-3. The protrusion 8-2-1 is located between the two sets of bolt holes. The end of the steel strip J is located between the groove 8-1-3 and the protrusion 8-2-1 to better clamp the steel strip J.

[0069] Furthermore, a wavy ruler is provided in the groove 8-1-3 along the longitudinal direction and a serration is provided in the transverse direction. The protrusion 8-2-1 is provided with a wavy ruler that matches the groove 8-1-3 along the longitudinal direction and a serration that matches the groove 8-1-3 along the transverse direction of the protrusion 8-2-1, so as to further ensure the firmness of the steel strip J end installation.

[0070] See Figure 2 The steel strip stretching mechanism C is used to stretch the steel strip J, ensuring that the steel strip J is always in a taut state. The steel strip stretching mechanism C includes two bases 5, a hydraulic lifting assembly 6, a weight pan 7, and two sets of support assemblies 9. The two bases 5 are respectively set on the inner and outer sides of the right support leg of the door frame 2. The weight pan 7 is fitted on the right support leg and is slidably mounted on the two bases 5 through the two sets of support assemblies 9. The steel strip clamp 8 is mounted on the weight pan 7 and is set near the inner side of the right support leg. The hydraulic lifting assembly 6 is located in the middle of the two bases 5, and the driving end of the hydraulic lifting assembly 6 abuts against the lower surface of the weight pan 7.

[0071] Furthermore, such as Figure 2 As shown, the weight pan 7 includes a weight support pan 7-1, two sets of sleeve rods 7-2, and two sets of weights 7-3. Two symmetrically arranged square through holes are opened in the middle of the weight support pan 7-1, forming a crossbeam 7-1-1 between the two square through holes. The right support leg is inserted into the crossbeam 7-1-1, and the steel band clamp 8 is installed on the crossbeam 7-1-1. The two sets of sleeve rods 7-2 are symmetrically installed on the weight support pan 7-1 and are located on the inner and outer sides of the right support leg. The two sets of weights 7-3 are symmetrically sleeved on the two sets of sleeve rods 7-2.

[0072] Furthermore, such as Figure 3 As shown, the hydraulic lifting assembly 6 includes an upper guide rail support plate 6-1, a lower guide rail support plate 6-2, two sets of cross support rods 6-3, two hydraulic push rods 6-4, and a hydraulic pump 6-5. The upper guide rail support plate 6-1 and the lower guide rail support plate 6-2 are arranged vertically opposite each other, and slide rails are respectively provided on the opposite surfaces of the upper guide rail support plate 6-1 and the lower guide rail support plate 6-2. The two sets of cross support rods 6-3 are installed horizontally side by side between the upper guide rail support plate 6-1 and the lower guide rail support plate 6-2, and the upper and lower sides of one end of each set of cross support rods 6-3 are respectively hinged to the upper guide rail support plate 6-1 and the lower guide rail support plate. On 6-2, the upper and lower sides of the other end of each set of cross support rods 6-3 are slidably connected to the slide rails of the upper guide rail support plate 6-1 and the lower guide rail support plate 6-2, respectively; two hydraulic push rods 6-4 are arranged horizontally side by side between the upper guide rail support plate 6-1 and the lower guide rail support plate 6-2, and each hydraulic push rod 6-4 corresponds to a set of cross support rods 6-3. The driving end of the hydraulic push rod 6-4 is fixedly connected to the sliding end of the cross support rod 6-3. The cross support rods 6-3 are linked by the driving of the hydraulic push rod 6-4, which in turn causes the upper guide rail support plate 6-1 to move upward, generating a supporting force on the weight support plate 7-1.

[0073] Furthermore, each set of cross support rods 6-3 includes two oppositely arranged "X" shaped cross rods. Each "X" shaped cross rod is formed by the cross connection of connecting rod one 6-3-1 and connecting rod two 6-3-2. One end of connecting rod one 6-3-1 is hinged to the upper guide rail support plate 6-1, and the other end is slidably connected to the lower guide rail support plate 6-2 through roller 6-3-3. One end of connecting rod two 6-3-1 is hinged to the lower guide rail support plate 6-2, and the other end of connecting rod two 6-3-1 is hinged to the upper guide rail support plate 6-1.

[0074] Furthermore, such as Figure 2 As shown, each set of support components 9 includes four elastic support members arranged at the four apex corners of the base 5; each elastic support member includes a cylindrical guide rail 9-1, an I-beam support block 9-2 and a spring 9-3. The cylindrical guide rail 9-1 is vertically mounted on the base 5, and the spring 9-3 and the I-beam support block 9-2 are sequentially fitted onto the cylindrical guide rail 9-1; a through hole is opened on the weight support plate 7-1 at a position corresponding to the cylindrical guide rail 9-1, and the weight support plate 7-1 is fitted onto the eight cylindrical guide rails 9-1 and abuts against the eight I-beam support blocks 9-2.

[0075] It should be noted that this embodiment uses a steel belt support frame A, a steel belt clamping and guiding mechanism B, a steel belt stretching mechanism C, and a steel belt J to simulate the working condition of elevator steel belt stretching. By adding weights, the steel belt J is kept in a taut state, which can reduce energy consumption compared to the previous method of using a motor to drive the stretching.

[0076] Specifically, the steel strip installation and adjustment process is as follows: A proximity sensor 10 is installed on the right support leg of the door frame-shaped rigid frame 2. One end of the steel strip J is first fixedly connected and kept stationary by the steel strip clamp 4. Since the steel strip clamp 8 is fixedly installed on the weight support plate 7-1, and the weight support plate 7-1 is supported by eight elastic support members and the hydraulic lifting assembly 6, the hydraulic lifting assembly 6 first lifts the weight support plate 7-1 until the proximity sensor 10 issues an alarm, and the hydraulic lifting assembly 6 stops moving; the steel strip J is in a slack state. At this time, the other end of the steel strip J is installed on the steel strip clamp 8; then the hydraulic lifting assembly 6 descends to the lowest position, and the weight support plate 7-1 gradually moves downward under its own weight and the weight 7-3, and the steel strip J gradually straightens until the weight support plate 7-1 is supported and kept stationary by the eight elastic support members. At this time, the spring 9-3 is in a compressed state; the tension of the steel strip J is constantly monitored. When the tension of the steel strip J does not meet the requirements, the weight 7-3 can be added for adjustment.

[0077] See Figure 6 and Figure 7The E-shaped load cell K includes a sensor body 11, a wiring harness 12, a connector fixing frame 13, an upper connector 14, and a lower connector 15. The upper connector 14 and the lower connector 15 are respectively mounted on the connector fixing frame 13. One end of the wiring harness 12 passes through the connector fixing frame 13 and is connected to the upper connector 14 and the lower connector 15. The other end of the wiring harness 12 is connected to the sensor body 11. The connector fixing frame 13 is used to fix the connector of the E-shaped load cell K and the wiring harness 12, which facilitates the subsequent connection of the sensor connector to the signal detection system. Figure 7 This is a schematic diagram showing the state of an E-shaped load cell K inserted into a steel strip J.

[0078] Furthermore, the sensor body 11 is marked with an identification QR code for distinguishing different sensors.

[0079] See Figure 8 The sensor transmission mechanism D is installed on one side of the door frame-shaped rigid frame 2 and is used for the continuous transmission of multiple E-shaped load cells K. The sensor transmission mechanism D includes a conveyor belt 16, a drive motor 17, two transmission rollers 18, two transmission bases 19, and several sensor support frames 20. A transmission roller 18 is rotatably mounted on each transmission base 19. The conveyor belt 16 is fitted onto two transmission rollers 18 and tensioned. The drive end of the drive motor 17 is connected to one of the transmission rollers 18 and is used as the active transmission roller, while the other transmission roller 18 is used as the passive transmission roller. Several sensor support frames 20 are evenly arranged along the circumference of the conveyor belt 16, and an E-shaped load cell K is inserted into each sensor support frame 20.

[0080] Furthermore, each sensor support frame 20 has a through mounting groove 20-1 at its top. Two elastic protrusions 20-2 are arranged side-by-side on the side face of the sensor support frame 20. The upper elastic protrusion 20-2 forms a groove 20-3 with the sensor support frame 20, and two adjacent elastic protrusions 20-2 form a groove 20-3. The lower elastic protrusion 20-2 forms a groove 20-3 with the conveyor belt. The connector fixing frame 13 of the E-shaped load cell K is installed in the mounting groove 20-1 and can move back and forth along the slotting direction of the mounting groove 20-1. The sensor body 11 of the E-shaped load cell K is inserted into the side groove 20-3, where the three metal strips of the sensor body 11 correspond to one groove 20-2 respectively. The sensor body 11 can move back and forth along the slotting direction of the groove 20-2.

[0081] Furthermore, the elastic protrusion 20-2 includes an arc-shaped boss and a compression spring; the inner side of the arc-shaped boss is connected to the sensor support frame 20 through the compression spring, and the arc-shaped surface of the arc-shaped boss faces outward; the arc-shaped boss also has a positioning function for the E-shaped load cell K, preventing the E-shaped load cell K from automatically falling off the sensor support frame 20.

[0082] In this embodiment, the drive motor 17 drives the transmission roller 18 to rotate, and the transmission roller 18 drives the conveyor belt 16 to move in a circumferential direction. Every time the transmission roller 18 rotates a certain angle, the next sensor support frame 20 is positioned between the sensor push-pull drive mechanism F and the detection guide rail E, so that one side of the E-shaped load cell K is aligned with the drive end of the push rod 23, and the other end of the E-shaped load cell K is aligned with the entrance of the detection guide rail E.

[0083] See Figure 14 The detection guide rail E is installed on the support base 1 and is located between the sensor transmission mechanism D and the left leg of the door frame-shaped rigid frame 2. It is used for the transmission of a single E-shaped load cell K. The transmission direction of the detection guide rail E is perpendicular to the transmission direction of the sensor transmission mechanism D. The inlet end of the detection guide rail E corresponds to the front end of the sensor support frame 20, and the outlet end of the detection guide rail E corresponds to the steel strip J on the left leg side.

[0084] The top of the detection guide rail E has a long sliding groove 21 extending through both the front and rear sides along its length. The side end face of the detection guide rail E has two long sliding grooves 22 extending through both the front and rear sides. The E-shaped load cell K is inserted into the detection guide rail E under the push of the sensor push-pull drive mechanism F. The connector fixing bracket 13 of the E-shaped load cell K is located in the long sliding groove 21. The upper and lower metal strips of the sensor body 11 are respectively inserted into the two long sliding grooves 22. The E-shaped load cell K moves along the detection guide rail E under the continued push of the sensor push-pull drive mechanism F until the sensor body 11 is inserted into the steel strip J. At the same time, the upper connector 14 of the E-shaped load cell K is inserted into the connector panel G to realize signal transmission.

[0085] Furthermore, a barcode scanning camera 28 is installed at the entrance end of the detection guide rail E. The barcode scanning camera 28 scans and identifies the QR code on the sensor. After the quality of the product is detected, it can be determined whether the product is qualified. Then, the information is transmitted to the sensor actuation mechanism H, and the product is then divided.

[0086] In this embodiment, the detection guide rail E is provided with a long slide groove 21 and a long slide groove 22. The long slide groove 21 not only guides and transports the connector fixing frame 13, but also positions it to keep it in one position, thereby ensuring that the upper connector on the connector fixing frame 13 can be accurately inserted into the connector panel. The long slide groove 22 also positions the sensor body 11 to ensure that it can return smoothly to the sensor support frame 20.

[0087] Furthermore, the outlet end of the detection guide rail E is set in a ramp shape to facilitate the return of the E-shaped load cell K after testing; and the outlet end of the detection guide rail E is provided with an opening on the side facing the connector panel G, so that the upper connector 14 in the E-shaped load cell K can be inserted into the connector panel G through this opening.

[0088] See Figure 10 The sensor push-pull drive mechanism F provides driving force for the E-shaped load cell K to slide along the detection guide rail E, and also provides driving force for the E-shaped load cell K to detach from the sensor support frame 20 and to be installed on the sensor support frame 20. The sensor push-pull drive mechanism F includes push rod 1 23 and push rod 24, which are installed opposite each other on both sides of the detection guide rail E. Push rod 1 23 is located on the side of the conveyor belt 16 away from the detection guide rail E, and is used to push the E-shaped load cell K out of the sensor support frame 20 and move it along the detection guide rail E toward the steel belt J. Push rod 24 is installed on the support base 1 and is located on the side of the left support leg away from the detection guide rail E. It is used to push the E-shaped load cell K out of the connector panel G and detach it from the steel belt J, and insert it into the detection guide rail E.

[0089] Furthermore, such as Figure 10 and Figure 11 As shown, the push rod 23 includes a column 23-1, a telescopic rod 23-2, a sensor booster, and a connector booster. The telescopic rod 23-2 is installed on the upper end of the column 23-1, with its driving end facing the E-shaped load cell K. The sensor booster is installed on the driving end of the telescopic rod 23-2 and connects to the sensor body 11 during testing to achieve the pushing and pulling of the sensor body 11. The connector booster is installed on the driving end of the telescopic rod 23-2 and connects to the connector fixing frame 13 during testing to achieve the pushing and pulling of the connector fixing frame 13.

[0090] Furthermore, such as Figure 10 and Figure 11As shown, the sensor booster has two push blocks 23-3, a hinge plate 23-4, and a pneumatic push rod 23-5 arranged side by side on the side facing the E-shaped load cell K. The two push blocks 23-3 are arranged vertically and abut against the notches between two adjacent metal strips in the sensor body 11. The hinge plate 23-4 is composed of two plates hinged together, one of which is a fixed plate and the other is a swing plate that can swing left and right around the end of the fixed plate. The connecting end of the pneumatic push rod 23-5 is hinged to the sensor booster, and the driving end of the pneumatic push rod 23-5 is hinged to the swing plate of the hinge plate 23-4. The swing plate of the hinge plate 23-4 bends inward under the push of the pneumatic push rod 23-5 and clamps the sensor body 11.

[0091] Furthermore, such as Figure 10 and Figure 11 As shown, the connector booster, facing the E-shaped weighing sensor K, is provided with a pneumatic push rod 23-6, a hinge plate 23-7, and a push block 23-8 arranged sequentially from top to bottom. The hinge plate 23-7 is composed of two plates hinged together, one of which is a fixed plate and the other is a swing plate that can swing up and down around the end of the fixed plate. The connecting end of the pneumatic push rod 23-6 is hinged to the connector booster, and the driving end of the pneumatic push rod 23-6 is hinged to the swing plate of the hinge plate 23-7. The up and down swing of the swing plate realizes the pressing of the connector fixing frame 13. The push block 23-8 abuts against the connector fixing frame 13 to realize the movement of the connector fixing frame 13.

[0092] Furthermore, the push rod 24 includes a column 24-1, a telescopic rod 24-2, and a pusher rod 24-3; the telescopic rod 24-2 is fixedly installed on the upper end of the column 24-1, and the pusher rod 24-3 is installed on the drive end of the telescopic rod 24-2.

[0093] Furthermore, the bottom of the front end of the push rod 24-3 is provided with a notch. When the connector fixing frame 13 is in the notch at the bottom of the push rod 24-3, the telescopic rod 24-2 drives the connector fixing frame 13 to move through the push rod 24-3 until the upper connector 14 on the connector fixing frame 13 is inserted into the socket of the connector panel G.

[0094] In this embodiment, during the detection process of the E-shaped load cell K, when a sensor support frame 20 is aligned with the inlet end of the detection guide rail E, the pneumatic push rod 23-5 in the sensor booster extends and pushes the swing plate to bend towards the sensor body, causing the hinge plate 23-4 to clamp the side of the sensor body. The push block 23-3 in the sensor booster abuts against the notch of the sensor body, and the sensor booster fixes the sensor body. Similarly, the pneumatic push rod 23-6 in the connector booster extends and pushes the swing plate to bend towards the connector fixing frame, causing the hinge plate 23-7 to clamp the connector fixing frame. The push block 23-8 in the connector booster abuts against the connector fixing frame, and the connector booster fixes the connector fixing frame. The telescopic push rod 23... Rod 23-2 pushes the sensor body 11 and connector fixing bracket 13 out of the sensor support frame 20. The connector fixing bracket 13 is inserted into the long slide groove 21 on the detection guide rail E, and the sensor body 11 is inserted into the long slide groove 22 on the detection guide rail E. The telescopic rod 23-2 continues to extend and pushes the E-shaped load cell K to move along the detection guide rail E until the upper connector 14 on the connector fixing bracket 13 is aligned with the socket of the connector panel G and the sensor body 11 is locked onto the steel strip J. The driving end of the push rod 24 drives the connector fixing bracket 13 to move toward the socket side of the connector panel G until the upper connector 14 on the connector fixing bracket 13 is inserted into the socket of the connector panel G. The controller receives the output signal value of the E-shaped load cell K to test the performance of the product, thereby detecting whether the quality of the sensor sample meets the requirements. When the connector panel G finishes detecting the E-shaped load cell K, the push rod 24-3 of the push rod 24 pulls the upper connector 14 on the connector fixing bracket 13 out of the connector panel G; the push rod 23 clamps the E-shaped load cell K again and pulls the E-shaped load cell K in the opposite direction along the detection guide rail E to the sensor support bracket 20, and the push rod 23 releases the E-shaped load cell K.

[0095] See Figure 15 The sensor actuation mechanism H is installed at the end of the sensor transmission mechanism D and is used for separating qualified and unqualified products. The sensor actuation mechanism H includes a column 25, a telescopic rod 26, and a lever 27. The telescopic rod 26 is installed at the top of the column 25, and the driving end of the telescopic rod 26 is set towards the sensor support frame 20. The lever 27 is installed at the end of the telescopic rod 26.

[0096] Furthermore, the dial 27 is U-shaped, with the notch of the dial 27 facing downwards, and the distance between the two side walls of the dial 27 is greater than the size of the sensor support frame 20.

[0097] In this embodiment, a box is set on each side of the end of the sensor transmission mechanism D. One box is used to collect qualified products, and the other box is used to collect unqualified products. After the controller detects the quality of the sensor, it sends a signal to the sensor actuation mechanism H. The toggle block 27 on the sensor actuation mechanism H actuates the edge side of the sensor body 11 without interfering with the sensor support frame 20, so that the E-shaped weighing sensor K is separated from the sensor support frame 20 and enters the corresponding box.

[0098] To clarify the usage of the quality inspection platform of this application, this embodiment provides a quality inspection method for an E-shaped weighing sensor. The specific quality inspection process is as follows:

[0099] S1, start the hydraulic pump 6-5 in the hydraulic lifting assembly 6, the two hydraulic push rods 6-4 respectively push the connecting rod 6-3-1 in the two sets of cross support rods 6-3 to move, the distance between the upper guide rail support plate 6-1 and the lower guide rail support plate 6-2 gradually increases, the upper guide rail support plate 6-1 moves upward and generates an upward thrust on the weight support plate 7-1, the weight support plate 7-1 moves upward until the proximity sensor 10 is triggered, the hydraulic pump 6-5 stops running, and the hydraulic lifting assembly 6 is in the load-holding state;

[0100] S2, one end of a steel strip J of a certain length is fixed in two steel strip clamps 4, and the other end of the steel strip J passes through the guide pulley 3 and is fixed in the steel strip clamp 8. The end of the steel strip J is located between the groove and the protrusion of the steel strip clamp to prevent the steel strip J from loosening. The hydraulic lifting assembly 6 is closed, the upper guide rail support plate 6-1 in the hydraulic lifting assembly 6 falls down and no longer provides support for the weight support plate 7-1. The weight support plate 7-1 is supported by the I-beam support block 9-2 and the spring 9-3 on the support assembly 9.

[0101] S3. Determine the tensile force value of the steel strip J in advance. This tensile force value is the maximum safe load that the steel strip J can withstand when fully loaded. Calculate the weight of the weight support plate 7-1 and the weight of the weight 7-3 that needs to be compensated in advance. Select the type of weight 7-3 and install the same type of weight 7-3 symmetrically on the weight support plate 7-1. At this time, the steel strip J is in a tensile and taut state.

[0102] S4. Use a coding machine to code each E-shaped load cell K. The barcode scanner records the initial voltage signal value of the sample when it is unloaded into its corresponding QR code. Then, install the E-shaped load cells K in sequence on the sensor support frame 20 at the initial position in the sensor transmission mechanism D.

[0103] S5, drive motor 17 drives transmission roller 18 to rotate a certain angle, and E-shaped load cell K is transported to the entrance end of detection guide rail E under the transmission of conveyor belt 16; barcode scanning camera 28 performs barcode scanning operation on E-shaped load cell K. Barcode scanning camera 28 can detect whether there is a sample installed on sensor support frame 20 at the current workstation, and record the current sample information into the controller. If barcode scanning camera 28 cannot scan the QR code, it means that there is no sample, the sample is placed in the wrong position or the code is missing, and the process corresponding to the workstation will not be carried out.

[0104] S6, the sensor booster and connector booster on push rod 23 respectively clamp the sensor body 11 and connector fixing frame 13 of E-shaped load cell K and push it out of the sensor support frame 20, while pushing it along the detection guide rail E toward the steel strip J side until the sensor body in E-shaped load cell K is stuck on the steel strip J, and push rod 23 releases E-shaped load cell K.

[0105] S6, push rod 24 pushes the connector fixing bracket 13 in the E-shaped load cell K to move to the side until the upper connector 14 is inserted into the connector panel G, and the controller judges the performance of the load cell under test.

[0106] S7. After the E-shaped load cell K completes the detection, the push rod 24 pulls the connector fixing bracket 13 out of the connector panel G to its original position, and the push rod 23 clamps the E-shaped load cell K again and pulls the E-shaped load cell K back to the sensor support bracket 20 along the detection guide rail E.

[0107] S8, the drive motor 17 in the sensor transmission mechanism D continues to run. When the E-shaped load cell K reaches the position of the sensor actuation mechanism H, the telescopic rod 26 in the sensor actuation mechanism H is pushed forward or backward under the control of the controller, so that the corresponding test product enters the corresponding box.

[0108] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A quality inspection platform for E-shaped weighing sensors, characterized in that: It includes a steel strip support frame (A), a steel strip clamping and guiding mechanism (B), a steel strip stretching mechanism (C), a sensor transmission mechanism (D), a detection guide rail (E), a sensor push-pull drive mechanism (F), a connector panel (G), a sensor toggle mechanism (H), and a steel strip (J); The steel strip (J) is mounted on the steel strip support frame (A) via the steel strip clamping and guiding mechanism (B) and is in a taut state under the action of the steel strip tensioning mechanism (C); the connector panel (G) is mounted on the steel strip support frame (A) and is located near the connector section of the steel strip (J); the sensor transmission mechanism (D) is located on one side of the steel strip support frame (A), and the E-shaped load cell (K) is mounted on the sensor support frame (20) on the sensor transmission mechanism (D); The detection guide rail (E) is located between the sensor transmission mechanism (D) and the steel strip support frame (A). The inlet end of the detection guide rail (E) is aligned with the sensor support frame (20) on the sensor transmission mechanism (D), and the outlet end of the detection guide rail (E) is aligned with the insertion section of the steel strip (J). The sensor push-pull drive mechanism (F) includes push rod one (23) and push rod two (24). Push rod one (23) and push rod two (24) are installed opposite each other on both sides of the detection guide rail (E). Push rod one (23) is located on the side of the sensor transmission mechanism (D) away from the detection guide rail (E) and is used to push the E-shaped load cell (K) out of the sensor support frame (20) and move it along the detection guide rail (E) toward the steel strip (J) insertion section. Push rod two (24) is used to push the E-shaped load cell (K) out of the connector panel (G) and detach it from the steel strip (J) and insert it into the detection guide rail (E). The sensor actuation mechanism (H) is installed at the end of the sensor transmission mechanism (D) and is used for separating qualified and unqualified products.

2. The quality inspection platform for an E-shaped weighing sensor according to claim 1, characterized in that: The steel strip support frame (A) is in the shape of a door frame, and the right support leg of the steel strip support frame (A) is inserted into the steel strip tensioning mechanism (C); The steel strip clamping guide mechanism (B) includes N guide pulleys (3), two steel strip clamps (4), and one steel strip clamp (8). The N guide pulleys (3) are arranged sequentially along the frame structure of the steel strip support frame (A). The two steel strip clamps (4) are installed vertically on the inner side of the left leg of the steel strip support frame (A). The steel strip clamp (8) is installed on the steel strip stretching mechanism (C). One end of the steel strip (J) is fixed inside the two steel strip clamps (4), and the other end of the steel strip (J) passes through the sequentially arranged guide pulleys (3) and is fixed on the steel strip clamp (8).

3. A quality inspection platform for an E-shaped weighing sensor according to claim 2, characterized in that: The steel strip clamp one (4) and steel strip clamp two (8) both include a clamp connecting plate and a clamp cover plate. The clamp connecting plate has a vertical strip groove on the side facing the clamp cover plate, and the clamp cover plate has a corresponding strip protrusion on the side facing the clamp connecting plate. The end of the steel strip (J) is located between the strip groove of the clamp connecting plate and the strip protrusion of the clamp cover plate, and is clamped by the clamp connecting plate and the clamp cover plate. The clamp connecting plate in the first steel strip clamp (4) is fixed on the left leg of the steel strip support frame (A), and the clamp connecting plate in the second steel strip clamp (8) is fixed on the steel strip stretching mechanism (C).

4. A quality inspection platform for an E-shaped weighing sensor according to claim 2, characterized in that: The steel strip stretching mechanism (C) includes two bases (5), a hydraulic lifting assembly (6), a weight pan (7), and two sets of support assemblies (9). The two bases (5) are respectively set on the inner and outer sides of the right leg of the steel strip support frame (A). The weight pan (7) is fitted on the right leg and is slidably mounted on the two bases (5) through the two sets of support assemblies (9). The steel strip clamp (8) is mounted on the weight pan (7) and set near the inner side of the right leg. The hydraulic lifting assembly (6) is located in the middle of the two bases (5), and the driving end of the hydraulic lifting assembly (6) abuts against the lower surface of the weight pan (7).

5. A quality inspection platform for an E-shaped weighing sensor according to claim 4, characterized in that: The E-shaped weighing sensor (K) includes a sensor body (11), a wire harness (12), a connector fixing frame (13), an upper connector (14), and a lower connector (15). The upper connector (14) and the lower connector (15) are respectively mounted on the connector fixing frame (13). One end of the wire harness (12) passes through the connector fixing frame (13) and is connected to the upper connector (14) and the lower connector (15). The other end of the wire harness (12) is connected to the sensor body (11).

6. A quality inspection platform for an E-shaped weighing sensor according to claim 5, characterized in that: Each sensor support frame (20) has a through mounting groove (20-1) at its top and three through sliding grooves (20-3) on its side end face. The connector fixing frame (13) of the E-shaped load cell (K) is installed in the mounting groove (20-1) and can move back and forth along the slotting direction of the mounting groove (20-1). The sensor body (11) of the E-shaped load cell (K) is inserted into the sliding groove (20-3) on the side. The three metal strips of the sensor body (11) are respectively set in one sliding groove (20-3). The sensor body (11) can move back and forth along the slotting direction of the sliding groove (20-3).

7. A quality inspection platform for an E-shaped weighing sensor according to claim 5, characterized in that: The top of the detection guide rail (E) has a long sliding groove (21) that runs through the front and rear sides along the length of the detection guide rail (E). The side end face of the detection guide rail (E) has two long sliding grooves (22) that run through the front and rear sides. When the E-shaped weighing sensor (K) is inside the detection guide rail (E), the connector fixing bracket (13) is inside the long sliding groove (21), and the upper and lower metal strips of the sensor body (11) are respectively inserted into the two long sliding grooves (22).

8. A quality inspection platform for an E-shaped weighing sensor according to claim 5, characterized in that: The push rod 1 (23) includes a column 1 (23-1), a telescopic rod 1 (23-2), a sensor booster, and a connector booster; the telescopic rod 1 (23-2) is installed on the upper end of the column 1 (23-1), and the driving end of the telescopic rod 1 (23-2) is set towards the E-shaped load cell (K). The sensor booster and the connector booster are respectively installed on the driving end of the telescopic rod 1 (23-2) to realize the push and pull of the E-shaped load cell (K); The sensor booster has two push blocks (23-3), a hinge plate (23-4), and a pneumatic push rod (23-5) arranged side by side on the side facing the E-shaped load cell (K). The two push blocks (23-3) are arranged vertically and abut against the notches between two adjacent metal strips in the sensor body (11). The hinge plate (23-4) is formed by hinged connection of two plates. The connecting end of the pneumatic push rod (23-5) is hinged to the sensor booster, and the driving end of the pneumatic push rod (23-5) is hinged to the swing plate of the hinge plate (23-4). The connector booster is provided with a pneumatic push rod two (23-6), a hinge plate two (23-7), and a push block two (23-8) arranged sequentially from top to bottom on the side facing the E-shaped weighing sensor (K). The hinge plate two (23-7) is composed of two plates hinged together. The connecting end of the pneumatic push rod two (23-6) is hinged to the connector booster, and the driving end of the pneumatic push rod two (23-6) is hinged to the swing plate of the hinge plate two (23-7). The push block two (23-8) abuts against the connector fixing frame (13).

9. A quality inspection platform for an E-shaped weighing sensor according to claim 1, characterized in that: The sensor actuation mechanism (H) is installed at the end of the sensor transmission mechanism (D). The sensor actuation mechanism (H) includes a column three (25), a telescopic rod three (26), and a U-shaped toggle block (27). The telescopic rod three (26) is installed at the top of the column three (25), and the driving end of the telescopic rod three (26) is set towards the sensor support frame (20). The toggle block (27) is installed at the end of the telescopic rod three (26).

10. A quality inspection method for an E-shaped weighing sensor, characterized in that: Based on the quality inspection platform for an E-shaped weighing sensor as described in any one of claims 5 to 8, the specific quality inspection process is as follows: S1, use the hydraulic lifting assembly (6) to lift the weight pan (7) to the designated position; S2, fix one end of the steel belt (J) in two steel belt clamps (4), and pass the other end of the steel belt (J) through the guide pulley (3) and fix it on the steel belt clamp (8). The hydraulic lifting assembly (6) falls. S3, adjust the number of weights in the weight pan (7) until the steel strip (J) is at the tension when fully loaded; S4, install the E-shaped load cells (K) sequentially on the sensor support frame (20) in the sensor transmission mechanism (D); S5, when the E-shaped load cell (K) is transported to the entrance end of the detection guide rail (E) under the transmission of the sensor transmission mechanism (D), the barcode scanning camera (28) performs barcode scanning on the E-shaped load cell (K); S6, push rod one (23) clamps the E-shaped load cell (K) and pushes it along the detection guide rail (E) toward the steel strip (J) until the sensor body in the E-shaped load cell (K) is stuck on the steel strip (J), and push rod one (23) releases the E-shaped load cell (K); S6, push rod two (24) pushes the connector fixing bracket (13) in the E-shaped load cell (K) to move to the side until the upper connector (14) is inserted into the connector panel (G), and the controller judges the performance of the load cell to be tested; S7, after the E-shaped load cell (K) has completed the detection, the push rod two (24) pulls the connector fixing bracket (13) out from the connector panel (G) to its original position, the push rod one (23) clamps the E-shaped load cell (K) again, and pulls the E-shaped load cell (K) back to the sensor support bracket (20) along the detection guide rail (E); S8, the sensor transmission mechanism (D) continues to operate. When the E-shaped load cell (K) reaches the position of the sensor actuation mechanism (H), the sensor actuation mechanism (H) is pushed forward or backward under the control of the controller, so that the corresponding test product enters the corresponding box.

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