Commercial truck esc moving iron core spring automatic force measuring and screening mechanism

Abstract

The application relates to the technical field of spring detection, in particular to a commercial truck ESC moving iron core spring automatic force measurement and screening mechanism. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism comprises a feeding assembly for providing moving iron core springs, a buffer assembly for linearly conveying the moving iron core springs, a force measurement assembly for detecting the elastic force of the moving iron core springs and a screening assembly for screening qualified moving iron core springs. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism provides the moving iron core springs through the feeding assembly, conveys the moving iron core springs through the buffer assembly, detects the elastic force of the moving iron core springs through the force measurement assembly and screens the qualified moving iron core springs through the screening assembly; the mechanical automatic elastic force measurement function and the screening function are completed, manual intervention is not needed, manual measurement and screening are avoided, manpower investment is reduced and production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of spring testing technology, and in particular to an automatic force measuring and screening mechanism for the moving iron core spring of a commercial truck ESC. Background Technology

[0002] Electronic Stability Control (ESC) is a mandatory standard active safety component for commercial trucks. It relies on the reciprocating motion of the solenoid valve's moving iron core to achieve independent braking and attitude correction for each wheel, preventing serious traffic accidents such as high-speed oversteering, skidding, and rollover. China already has mandatory national standards specifying ESC installation and performance testing requirements. The moving iron core spring is the core elastic component of the ESC solenoid valve actuator; its elasticity directly determines the valve core's opening and closing response speed and the reliability of the valve port seal.

[0003] In existing technologies, the elastic force testing of moving iron core springs is generally conducted manually. This method not only requires a large investment of manpower and has high labor costs, but also suffers from slow operation and low efficiency, making it difficult to meet the testing needs of large-scale production. Furthermore, manual testing is greatly affected by operating techniques and working conditions, resulting in unstable measurement accuracy and a tendency for false positives and false negatives, thus failing to guarantee consistent product quality.

[0004] Therefore, the technical problem in the prior art is how to propose an automated device that can automatically detect the elastic force of the moving iron core spring. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned deficiencies in the existing technology by providing an automatic force measurement and screening mechanism for the moving iron core spring of commercial trucks ESC.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] An automatic force measuring and screening mechanism for ESC moving iron core springs in commercial trucks includes a feeding assembly for providing moving iron core springs, a buffer assembly for linearly conveying moving iron core springs, a force measuring assembly for detecting the elastic force of moving iron core springs, and a screening assembly for screening qualified moving iron core springs.

[0008] Furthermore, the force measuring component includes a force measuring platform, a three-pronged fork, a moving component, a first bracket, a first cylinder, a pressure head, and a pressure sensor;

[0009] The force measuring platform is used to receive the moving iron core spring delivered by the buffer component, and the pressure sensor is set on the force measuring platform;

[0010] The three-pronged shift fork is used to move the moving iron core spring on the force measuring platform;

[0011] The movable component is used to drive the three-headed fork to move along a first straight line or a second straight line. The first straight line is parallel to the extension direction of the force measuring platform, and the second straight line is perpendicular to both the first straight line and the vertical direction.

[0012] The first bracket is provided with a protrusion, which is suspended above the force measuring platform. The protrusion has a first mounting hole in the vertical direction. The cylinder body of the first cylinder is provided on the protrusion. The output end of the first cylinder passes through the first mounting hole in the vertical direction and is connected to the pressure head. The pressure head is located directly above the pressure sensor, and the central axis of the pressure head is coaxial with the central axis of the pressure sensor.

[0013] In the vertical direction, the pressure head is driven downward by the output end of the first cylinder to squeeze the moving iron core spring on the force measuring platform, thereby causing the moving iron core spring to compress and squeeze the pressure sensor, thus calculating the compression elastic force of the moving iron core spring.

[0014] Furthermore, the force measuring platform is provided with a receiving groove that runs through the first straight line. The receiving groove extends along the first straight line and its depth in the vertical direction is configured to a preset depth. One of the slots of the receiving groove is connected to the output port of the buffer component. The pressure sensor is set in the receiving groove and is located directly below the pressure head. The pressure head is suspended above the receiving groove and can move closer to or away from the receiving groove.

[0015] Furthermore, the buffer assembly includes a linear vibrator assembly and an optical sensor; the linear vibrator assembly is used to receive the moving iron core spring provided by the feeding assembly and convey it to the receiving groove of the force measuring platform; along the direction of the second straight line, the transmitting end of the optical sensor is set on one side of the linear vibrator assembly, and the receiving end of the optical sensor is set on the other side of the linear vibrator assembly.

[0016] The force measuring assembly also includes a blocking cylinder, which is located on one side of the force measuring platform. The cylinder body of the blocking cylinder is connected to the first bracket. A clearance hole is provided on the side wall of the receiving groove facing the blocking cylinder, which runs through the second straight line. Along the first straight line, the distance between the clearance hole and the nearest end face of the linear vibrator assembly is configured as a first predetermined distance. Along the second straight line, the output end of the blocking cylinder can be inserted into the receiving groove through the clearance hole or retracted outside the force measuring platform.

[0017] Furthermore, the moving component includes a support, a first moving cylinder, and a second moving cylinder;

[0018] The support is set on one side of the force measuring platform; the three-headed shift fork is installed at the output end of the first moving cylinder, the cylinder body of the first moving cylinder is installed at the output end of the second moving cylinder, and the cylinder body of the second moving cylinder is installed on the support.

[0019] The output end of the first movable cylinder moves along the second straight line, and the output end of the second movable cylinder moves along the first straight line.

[0020] Furthermore, the three-head shift fork includes a body and three protrusions connected to one side of the body and spaced apart. The body is mounted on the output end of the first moving cylinder, and the protrusions extend along the second straight line.

[0021] Along the first straight line, the distance between any two adjacent protrusions is equal and is configured as a second predetermined distance.

[0022] Furthermore, the screening component includes a scrap bin for receiving defective moving iron core springs, the scrap bin being located below the receiving groove opposite to the slot of the buffer component;

[0023] The screening assembly also includes a receiving block and a receiving cylinder. The receiving block is used to receive qualified moving iron core springs, and the output end of the receiving cylinder is connected to the receiving block.

[0024] Along the second straight line, the output end of the receiving cylinder is used to drive the receiving block to extend into the first position or exit from the first position. If the receiving block is aligned with the receiving groove opposite to the slot of the buffer assembly, the receiving block is in the first position.

[0025] Furthermore, the buffer assembly also includes a fiber optic sensor, which is located between the optical sensor and the blocking cylinder along the first straight line, and the projection of the fiber optic sensor's detection end is located within the distance between the clearance hole and the nearest end face of the linear vibrator assembly along the vertical direction.

[0026] Fiber optic sensors are used to detect the presence of a moving iron core spring within a distance between the clearance hole and the nearest end face of the linear vibrator assembly.

[0027] Furthermore, it also includes a main controller, and optical sensors, pressure sensors, and fiber optic sensors are electrically connected to the main controller.

[0028] The main controller is also used to control the actions of the first cylinder, the first moving cylinder, the second moving cylinder, the blocking cylinder, and the receiving cylinder;

[0029] The main controller is also used to control the start and stop of the feeding assembly and the linear vibrator assembly.

[0030] Furthermore, the feeding assembly is a spiral vibratory feeder assembly.

[0031] Compared with existing technologies, the advantages of this utility model are:

[0032] I. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism of this utility model provides moving iron core springs through a feeding component, conveys moving iron core springs through a buffer component, detects the elastic force of moving iron core springs through a force measuring component, and screens qualified moving iron core springs through a screening component; it completes the mechanical automatic elastic force measurement and screening functions without manual intervention, avoids manual measurement and screening, reduces manpower input, and improves production efficiency.

[0033] II. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism of this utility model relies on optical sensors and fiber optic sensors to complete workpiece identification. There is no mechanical contact or wear, and it is not affected by the shape of the spring or slight positional deviation. It can operate stably for a long time and ensure closed-loop control of the material feeding quantity.

[0034] III. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism of this utility model, when there are enough moving iron core springs on the linear vibrator assembly, is sensed by the optical sensor, and the main controller controls the feeding assembly not to start, which can completely avoid the continuous influx and stacking of workpieces.

[0035] IV. The commercial truck ESC moving iron core spring automatic force measurement and screening mechanism of this utility model adopts a three-headed fork to synchronously push all the moving iron core springs in the force measurement platform. All moving iron core spring workpieces are displaced synchronously and have a uniform traveling posture, ensuring the consistency of the positioning of each moving iron core spring. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the automatic force measurement and screening mechanism for the moving iron core spring of the commercial truck ESC according to this utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the feeding assembly and screening assembly of this utility model;

[0038] Figure 3 This is a partially enlarged schematic diagram of the pressure head and receiving groove of this utility model.

[0039] Marked in the image:

[0040] Force measuring component (1), force measuring platform (101), three-headed shift fork (102), moving component (103), first bracket (104), first cylinder (105), pressure head (106), protrusion (107), first mounting hole (108), receiving groove (109), blocking cylinder (113), clearance hole (114), support (115), first moving cylinder (116), second moving cylinder (117), body (118), protrusion (119), pressure sensor (120).

[0041] Buffer component (2), linear vibrator component (201), optical sensor (202), transmitter (203), receiver (204), fiber optic sensor (205);

[0042] Feeding assembly (3);

[0043] Screening component (4), receiving block (401), receiving cylinder (402), waste bin (403). Detailed Implementation

[0044] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length h," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] Example 1

[0046] like Figure 1 As shown, this embodiment proposes an automatic force measurement and screening mechanism for ESC moving iron core springs in commercial trucks, including a feeding assembly 3 for providing moving iron core springs, a buffer assembly 2 for linearly conveying moving iron core springs, a force measuring assembly 1 for detecting the elastic force of moving iron core springs, and a screening assembly 4 for screening qualified moving iron core springs.

[0047] like Figures 1-3As shown, specifically, the force measuring component 1 includes a force measuring platform 101, a three-pronged fork 102, a moving component 103, a first support 104, a first cylinder 105, a pressure head 106, and a pressure sensor 120. The force measuring platform 101 is used to receive the moving iron core spring delivered by the buffer component 2, and the pressure sensor 120 is disposed on the force measuring platform 101. The three-pronged fork 102 is used to transfer the moving iron core spring on the force measuring platform 101. The moving component 103 is used to drive the three-pronged fork 102 to move along a first straight line or a second straight line. The first straight line is parallel to the extension direction of the force measuring platform 101, and the second straight line is perpendicular to both the first straight line and the vertical direction. The first support 104 is provided with a protrusion 107. 7 is suspended above the force measuring platform 101. A first mounting hole 108 is provided on the protrusion 107 in the vertical direction. The cylinder body of the first cylinder 105 is provided on the protrusion 107. The output end of the first cylinder 105 passes through the first mounting hole 108 in the vertical direction and is connected to the pressure head 106. The pressure head 106 is located directly above the pressure sensor 120, and the central axis of the pressure head 106 is coaxial with the central axis of the pressure sensor 120. In the vertical direction, the pressure head 106 is driven downward by the output end of the first cylinder 105 to squeeze the moving iron core spring on the force measuring platform 101, thereby compressing the moving iron core spring and squeezing the pressure sensor 120, thereby calculating the compression elastic force of the moving iron core spring.

[0048] In actual use, the moving iron core spring is not fully compressed. The compression amount of the moving iron core spring can be adjusted according to the specific situation, and there is no restriction here.

[0049] like Figures 1-3 As shown, more specifically, the force measuring platform 101 is provided with a receiving groove 109 extending along the first straight line. The receiving groove 109 extends along the first straight line, and the depth of the receiving groove 109 in the vertical direction is configured to a preset depth. One of the slots of the receiving groove 109 is connected to the output port of the buffer component 2. The pressure sensor 120 is disposed in the receiving groove 109 and is located directly below the pressure head 106. The pressure head 106 is suspended above the receiving groove 109 and can move closer to or away from the receiving groove 109.

[0050] The force measuring platform 101 is provided with a receiving groove 109. One of the slots of the receiving groove 109 is connected to the output port of the buffer component 2. The receiving groove 109 is used to receive the moving iron core spring from the buffer component 2. Then, the bottom of the moving iron core spring is confined in the receiving groove 109, and along the first straight line, the upper part of the moving iron core spring is moved by the three-headed fork 102. The sidewall of the receiving groove 109 plays a guiding role for the moving iron core spring. The receiving groove 109 extends along the first straight line, and its cross-section can be rectangular or frustum-shaped, which matches the shape of the moving iron core spring. The depth of the receiving groove 109 is a preset depth. The preset depth is not limited here, but it should at least ensure that a part of the moving iron core spring can protrude from the top of the receiving groove 109, and the moving iron core spring can be compressed by the pressure head 106.

[0051] Preferably, in this embodiment, the moving iron core spring is a conical spring. The moving iron core spring is constrained by the receiving groove 109. The cross-section of the moving iron core spring increases from top to bottom. The cross-sectional size of the pressure head 106 is slightly smaller than the maximum cross-sectional size of the conical spring to compress the moving iron core spring without hitting the groove sidewall of the receiving groove 109.

[0052] like Figures 2-3 As shown, more specifically, the buffer assembly 2 includes a linear vibrator assembly 201 and an optical sensor 202; the linear vibrator assembly 201 is used to receive the moving iron core spring provided by the feeding assembly 3 and convey it to the receiving groove 109 of the force measuring platform 101; along the direction of the second straight line, the transmitting end 203 of the optical sensor 202 is disposed on one side of the linear vibrator assembly 201, and the receiving end 204 of the optical sensor 202 is disposed on the other side of the linear vibrator assembly 201; the force measuring assembly 1 also includes a blocking cylinder 113, which blocks... The blocking cylinder 113 is located on one side of the force measuring platform 101, and the cylinder body of the blocking cylinder 113 is connected to the first bracket 104; the receiving groove 109 is provided with a relief hole 114 that runs along a second straight line on one side of the groove wall facing the blocking cylinder 113, and the distance between the relief hole 114 and the nearest end face of the linear vibrator assembly 201 along the first straight line is configured as a first predetermined distance; along the second straight line, the output end of the blocking cylinder 113 can be inserted into the receiving groove 109 through the relief hole 114, or retracted outside the force measuring platform 101.

[0053] In this embodiment, the first predetermined distance is configured to be equal to the maximum radial width of a moving iron core spring.

[0054] The output port of the buffer component 2, which is also the output port of the linear vibrator component 201, relies on high-frequency, small-amplitude reciprocating linear vibration to allow the workpiece to be transported uniformly and orderly in one direction along the track. It is widely used for automated feeding and buffering of springs and small hardware parts. Its structure is existing technology and will not be described in detail here. The optical sensor 202 is a device that uses light signals to detect position, distance, and presence. In this embodiment, the transmitting end 203 of the optical sensor 202 is located on one side of the linear vibrator component 201, and the receiving end 204 of the optical sensor 202 is located on the other side of the linear vibrator component 201. The optical sensor 202 is used to detect the number of moving iron core springs transported by the linear vibrator component 201 to the force measuring platform 101.

[0055] The moving component 103, optical sensor 202, and blocking cylinder 113 work together. Typically, the force measuring platform 101 can hold a maximum of three moving iron core springs at any given time. The output end of the blocking cylinder 113 passes through the clearance hole 114 and is inserted into the receiving groove 109. Then, the optical sensor 202 detects that the moving iron core springs of the buffer component 2 fill the linear vibrator component 201. In other words, the optical sensor 202 detects that there are always moving iron core springs stationary at its location, and the feeding component 3 and the linear vibrator component 201 pause and wait. When the moving component 103 drives the three-headed fork 102 to push the moving iron core springs in the force measuring platform 101 toward the direction away from the buffer component 2, on the side of the force measuring platform 101 away from the buffer component 2, one of the moving iron core springs located at the very edge will detach from the force measuring platform 101. At this time, there are two moving iron core springs in the force measuring platform 101, and the feeding component 3 and the linear vibrator component 201 continue to feed the moving iron core springs to the force measuring platform 101.

[0056] like Figures 2-3 As shown, more specifically, the moving component 103 includes a support 115, a first moving cylinder 116, and a second moving cylinder 117; the support 115 is disposed on one side of the force measuring platform 101; a three-pronged fork 102 is mounted on the output end of the first moving cylinder 116, the cylinder body of the first moving cylinder 116 is mounted on the output end of the second moving cylinder 117, and the cylinder body of the second moving cylinder 117 is mounted on the support 115; the output end of the first moving cylinder 116 moves along a second straight line, and the output end of the second moving cylinder 117 moves along a first straight line.

[0057] like Figures 1-2 As shown, more specifically, the three-head shift fork 102 includes a body 118 and three protrusions 119 connected to one side of the body 118 and spaced apart. The body 118 is mounted on the output end of the first moving cylinder 116, and the protrusions 119 extend along a second straight line. Along the first straight line, the distance between any two adjacent protrusions 119 is equal and is configured as a second predetermined distance.

[0058] The second predetermined distance is configured according to the specific situation of the moving iron core spring. The second predetermined distance should ensure that it can clamp one moving iron core spring. That is, the second predetermined distance is greater than the maximum radial diameter of one moving iron core spring and less than the sum of the maximum radial diameters of two moving iron core springs.

[0059] like Figures 1-3 As shown, more specifically, the screening component 4 includes a scrap bin 403 for receiving defective moving iron core springs, the scrap bin 403 being located below the receiving groove 109 opposite to the slot of the buffer component 2;

[0060] The screening component 4 also includes a receiving block 401 and a receiving cylinder 402. The receiving block 401 is used to receive qualified moving iron core springs, and the output end of the receiving cylinder 402 is connected to the receiving block 401. Along the second straight line, the output end of the receiving cylinder 402 is used to drive the receiving block 401 to extend into the first position or to exit from the first position. If the receiving block 401 is connected to the receiving groove 109 away from the slot of the buffer component 2, the receiving block 401 is in the first position.

[0061] Defective moving iron core springs are pushed into scrap bins 403 by three-pronged forks 102, or, receiving blocks 401 move to the first position and qualified moving iron core springs are pushed onto receiving blocks 401 by three-pronged forks 102.

[0062] More specifically, the buffer assembly 2 also includes an optical fiber sensor 205. Along the first straight line, the optical fiber sensor 205 is located between the optical sensor 202 and the blocking cylinder 113. In the vertical direction, the projection of the detection end of the optical fiber sensor 205 is located within the distance between the clearance hole 114 and the nearest end face of the linear vibrator assembly 201. The optical fiber sensor 205 is used to detect whether there is a moving iron core spring within the distance between the clearance hole 114 and the nearest end face of the linear vibrator assembly 201.

[0063] More specifically, the automatic force measurement and screening mechanism for the moving iron core spring of commercial trucks also includes a main controller. Optical sensor 202, pressure sensor 120, and fiber optic sensor 202 are electrically connected to the main controller. The main controller is also used to control the actions of the first cylinder 105, the first moving cylinder 116, the second moving cylinder 117, the blocking cylinder 113, and the receiving cylinder 402. The main controller is also used to control the start and stop of the feeding assembly 3 and the linear vibrator assembly 201.

[0064] Specifically, the feeding component 3 is a spiral vibratory feeder assembly; the spiral vibratory feeder assembly is existing technology in this field, and its technical solution and device structure have been fully disclosed, so they will not be described in detail here. It can realize the separation and arrangement of the moving iron core spring. The linear vibrator assembly 201, its technical solution and device structure have been fully disclosed, so they will not be described in detail here. It can realize the transportation of the moving iron core spring.

[0065] In use, the moving iron core spring is transported by the feeding assembly 3 to the linear vibrator assembly 201, and then received by the force measuring platform 101. The output end of the blocking cylinder 113 extends, the fiber optic sensor 205 senses the moving iron core spring, the main controller controls the feeding assembly 3 and the linear vibrator assembly 201 to pause, the output end of the blocking cylinder 113 retracts, and the three-headed shift fork 102 shifts the three moving iron core springs on the force measuring platform 101, so that the moving iron core spring located at the outermost edge on the side away from the buffer assembly 2 is moved below the pressure head 106. The three-headed shift fork 102 retracts, the first cylinder 105 drives the pressure head 106 to move down, squeezing and compressing the moving iron core spring, which then acts on the pressure sensor 120 to measure the elastic force of this moving iron core spring. The main controller judges that if the elastic force is not qualified, the three-headed shift fork 102 will be deactivated. The fork 102 moves forward, driving the moving iron core spring along the first straight line in a direction away from the buffer assembly 2, until the moving iron core spring falls into the scrap bin 403. The main controller determines if the elastic force is qualified, then the receiving cylinder 402 is activated, driving the receiving block 401 into the first position. The three-headed fork 102 moves forward, driving the moving iron core spring along the first straight line in a direction away from the buffer assembly 2, until the moving iron core spring is pushed into the receiving block 401. Then, the receiving cylinder 402 drives the receiving block 401 to retract, and the qualified moving iron core springs on the receiving block 401 wait to be picked up. The optical sensor 202 senses whether there are enough buffered moving iron core springs. If there are enough, the main controller controls the feeding assembly 3 not to start. The above steps and actions are repeated, entering a cyclic measurement.

[0066] The automatic force measurement and screening mechanism for the moving iron core spring of the commercial truck ESC in this embodiment provides the moving iron core spring through the feeding component 3, conveys the moving iron core spring through the buffer component 2, detects the elastic force of the moving iron core spring through the force measuring component 1, and screens qualified moving iron core springs through the screening component 4; it completes the mechanical automatic elastic force measurement and screening functions without manual intervention, avoids manual measurement and screening, reduces manpower input, and improves production efficiency.

[0067] The automatic force measurement and screening mechanism for ESC moving iron core springs in commercial trucks in this embodiment relies on optical sensor 202 and fiber optic sensor 205 to complete workpiece identification. It is free from mechanical contact and wear, and is not affected by the shape of the spring or slight positional deviation. It can operate stably for a long time and ensure closed-loop control of the material feeding quantity.

[0068] In this embodiment of the commercial truck ESC moving iron core spring automatic force measurement and screening mechanism, when there are enough moving iron core springs on the linear vibrator assembly 201, they are sensed by the optical sensor 202, and the main controller controls the feeding assembly 3 not to start, which can completely avoid the continuous influx and stacking of workpieces.

[0069] The automatic force measurement and screening mechanism for ESC moving iron core springs in commercial trucks of this embodiment adopts a three-headed fork 102 to synchronously push all the moving iron core springs in the force measurement platform 101. All moving iron core spring workpieces are displaced synchronously and have a uniform traveling posture, ensuring the consistency of the positioning of each moving iron core spring.

[0070] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic force measuring and screening mechanism for the moving iron core spring of a commercial truck ESC, characterized in that, It includes a feeding assembly (3) for providing moving iron core springs, a buffer assembly (2) for linearly conveying moving iron core springs, a force measuring assembly (1) for detecting the elastic force of moving iron core springs, and a screening assembly (4) for screening qualified moving iron core springs. The force measuring component (1) includes a force measuring platform (101), a three-headed fork (102), a moving component (103), a first bracket (104), a first cylinder (105), a pressure head (106), and a pressure sensor (120). The force measuring platform (101) is used to receive the moving iron core spring delivered by the buffer component (2), and the pressure sensor (120) is set on the force measuring platform (101). The three-pronged fork (102) is used to transfer the moving iron core spring on the force measuring platform (101); The moving component (103) is used to drive the three-headed fork (102) to move along a first straight line or a second straight line. The first straight line is parallel to the extension direction of the force measuring platform (101), and the second straight line is perpendicular to the first straight line and the vertical direction. The first bracket (104) is provided with a protrusion (107), which is suspended above the force measuring platform (101). The protrusion (107) is provided with a first mounting hole (108) in the vertical direction. The cylinder body of the first cylinder (105) is provided on the protrusion (107). The output end of the first cylinder (105) passes through the first mounting hole (108) in the vertical direction and is connected to the pressure head (106). The pressure head (106) is located directly above the pressure sensor (120), and the central axis of the pressure head (106) is coaxial with the central axis of the pressure sensor (120). Along the vertical direction, the pressure head (106) is driven downward by the output end of the first cylinder (105) to squeeze the moving iron core spring on the force measuring platform (101), thereby causing the moving iron core spring to compress the pressure sensor (120), and thus calculate the compression elastic force of the moving iron core spring.

2. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 1, characterized in that, The force measuring platform (101) is provided with a receiving groove (109) that runs through the first straight line. The receiving groove (109) extends along the first straight line and the depth of the receiving groove (109) in the vertical direction is configured to a preset depth. One of the slots of the receiving groove (109) is connected to the output port of the buffer component (2). The pressure sensor (120) is provided in the receiving groove (109) and is located directly below the pressure head (106). The pressure head (106) is suspended above the receiving groove (109) and can move closer to or away from the receiving groove (109).

3. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 2, characterized in that, The buffer assembly (2) includes a linear vibrator assembly (201) and an optical sensor (202); the linear vibrator assembly (201) is used to receive the moving iron core spring provided by the feeding assembly (3) and deliver it to the receiving groove (109) of the force measuring platform (101); along the direction of the second straight line, the transmitting end (203) of the optical sensor (202) is set on one side of the linear vibrator assembly (201), and the receiving end (204) of the optical sensor (202) is set on the other side of the linear vibrator assembly (201); The force measuring assembly (1) also includes a blocking cylinder (113), which is located on one side of the force measuring platform (101). The cylinder body of the blocking cylinder (113) is connected to the first bracket (104). The receiving groove (109) is provided with a relief hole (114) that runs through the second straight line on one side of the groove wall facing the blocking cylinder (113). Along the first straight line, the distance between the relief hole (114) and the nearest end face of the linear vibrator assembly (201) is configured as a first predetermined distance. Along the second straight line, the output end of the blocking cylinder (113) can be inserted into the receiving groove (109) through the relief hole (114) or retracted outside the force measuring platform (101).

4. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 3, characterized in that, The moving assembly (103) includes a support (115), a first moving cylinder (116), and a second moving cylinder (117). The support (115) is set on one side of the force measuring platform (101); the three-headed fork (102) is installed at the output end of the first moving cylinder (116), the cylinder body of the first moving cylinder (116) is installed at the output end of the second moving cylinder (117), and the cylinder body of the second moving cylinder (117) is installed on the support (115); The output end of the first moving cylinder (116) moves along the second straight line, and the output end of the second moving cylinder (117) moves along the first straight line.

5. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 4, characterized in that, The three-head shift fork (102) includes a body (118) and three protrusions (119) connected to one side of the body (118) and spaced apart. The body (118) is installed at the output end of the first moving cylinder (116), and the protrusions (119) extend along a second straight line. Along the first straight line, the distance between any two adjacent protrusions (119) is equal and is configured as a second predetermined distance.

6. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 5, characterized in that, The screening component (4) includes a scrap bin (403) for receiving defective moving iron core springs, the scrap bin (403) being located below the receiving groove (109) opposite to the slot of the buffer component (2); The screening component (4) also includes a receiving block (401) and a receiving cylinder (402). The receiving block (401) is used to receive qualified moving iron core springs, and the output end of the receiving cylinder (402) is connected to the receiving block (401). Along the second straight line, the output end of the receiving cylinder (402) is used to drive the receiving block (401) to extend into the first position or exit from the first position. If the receiving block (401) is connected to the receiving groove (109) away from the slot of the buffer assembly (2), the receiving block (401) is in the first position.

7. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 6, characterized in that, The buffer assembly (2) also includes an optical fiber sensor (205) located between the optical sensor (202) and the blocking cylinder (113) along the first straight line, and the projection of the detection end of the optical fiber sensor (205) is located within the distance between the clearance hole (114) and the nearest end face of the linear vibrator assembly (201) along the vertical direction. The fiber optic sensor (205) is used to detect whether there is a moving iron core spring within the distance between the clearance hole (114) and the nearest end face of the linear vibrator assembly (201).

8. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 7, characterized in that, It also includes a main controller, and the optical sensor (202), pressure sensor (120), and fiber optic sensor (205) are electrically connected to the main controller respectively; The main controller is also used to control the actions of the first cylinder (105), the first moving cylinder (116), the second moving cylinder (117), the blocking cylinder (113), and the receiving cylinder (402); The main controller is also used to control the start and stop of the feeding assembly (3) and the linear vibrator assembly (201).

9. The automatic force measuring and screening mechanism for the moving iron core spring of commercial trucks according to claim 1, characterized in that, The feeding component (3) is a spiral vibratory feeder assembly.

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