Parking system spring bending forming device and working method thereof

Abstract

The application is a divisional application, and the original application has an application number of 2024117659062. The present application relates to the technical field of automobile spring manufacturing, in particular to a parking system spring bending forming device and a working method thereof. It comprises a clamping seat for fixing a spring sheet body, the spring sheet body comprising a mounting plate and an extension plate, the extension plate being pivotally connected to a roller at the front end; the clamping seat is provided with a forming limiting surface below the bending position of the spring sheet body, and the extension plate extends out of the forming limiting surface; a material moving driving device is used to drive the clamping seat to move to a group of workstations in sequence, the workstations comprising a bending workstation; a bending module opposite to the bending workstation, the bending module comprising a bending execution module and a spring sheet performance detection module, the bending execution module comprising a bending driver and a bending punch, and the spring sheet performance detection module comprising a pressure detection probe and a probe driver. The qualified rate of products can be improved.

Description

[0001] This application is a divisional application. The original application was filed on December 4, 2024, with application number 2024117659062, and the invention title was: A parking system spring assembly device and its working method. Technical Field

[0002] This invention relates to the field of automotive spring manufacturing technology, specifically to a parking system spring bending and forming device and its working method. Background Technology

[0003] Combination Figure 1 and Figure 2 As shown, the parking system special spring 1 includes a spring body 11, the spring body 11 includes a mounting plate 111 and an extension plate 112, the mounting plate 111 and the extension plate 112 are provided with an angle, the front end of the extension plate 112 is provided with a pair of connecting plates 113, a pivot 12 is installed between the pair of connecting plates 113, the front end of the connecting plate 113 is provided with a through hole 114 adapted to the pivot 12, a roller 13 is sleeved on the pivot 12, and the pair of connecting plates 113 are arranged at both ends of the roller 13 in the axial direction.

[0004] Combination Figure 17 As shown, during use, the mounting plate 111 is fixed with screws. Due to the angle, in the free state, the axis of the roller 13 is on one side of the mounting plate 111 in the z-direction, and the z-direction is perpendicular to the plane where the mounting plate 111 is located. In the use state, the roller 13 is limited on one side in the z-direction. Compared with the free state, the axis of the roller 13 moves a certain distance in the opposite direction of the z-direction. At this time, the roller 13 applies a preset elastic force in the z-direction. In the use state, the distance between the axis of the roller 13 and the mounting plate 111 in the z-direction is a fixed value.

[0005] Therefore, the elastic force of the roller 13 in the z-direction depends on two aspects: First, the distance in the z-direction between the axis of the roller 13 and the mounting plate 111 in the free state. Since the distance from the roller 13 to the end of the extension plate 112 near the mounting plate 111 is a fixed value, the distance in the z-direction between the axis of the roller 13 and the mounting plate 111 can be converted into the bending angle of the mounting plate 111 and the extension plate 112; Second, the elastic performance of the spring body 11.

[0006] Ideally, the elastic properties of the spring body 11 should be fixed, and the bending angles of the mounting plate 111 and the extension plate 112 should be constant. By ensuring that the bending angles of the mounting plate 111 and the extension plate 112 in their free state are preset, it can be guaranteed that the roller 13 will generate a preset pressure in the z-direction during use. However, in actual production, even under the premise of ensuring the bending angles between the mounting plate 111 and the extension plate 112, the pressure generated by the roller 13 in the z-direction during use will deviate and exceed the design range. This affects the product yield. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, the present invention provides a parking system spring bending and forming device and its working method, which can improve the product qualification rate.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0009] A parking system spring bending and forming device, comprising:

[0010] The material transfer assembly includes a material transfer drive device and a clamp. The clamp is used to fix the spring body. The spring body includes a mounting plate and an extension plate. The front end of the extension plate is provided with a pair of connecting plates. A pivot is installed between the pair of connecting plates. The front end of the connecting plate is provided with a through hole adapted to the pivot. A roller is sleeved on the pivot. The pair of connecting plates are located at both ends of the roller along the axial direction. The clamp is used to limit the posture of the spring body. The clamp is provided with a forming limiting surface below the bending position of the spring body. The extension plate extends out of the forming limiting surface. The material transfer drive device is used to drive the clamp to move sequentially to a set of workstations, including a bending workstation.

[0011] The bending module, facing the bending station, includes a bending execution module and a spring performance detection module. The bending execution module includes a bending driver and a bending punch. The spring performance detection module includes a pressure detection probe and a probe driver. The probe driver is used to drive the pressure detection probe to move the roller in a direction perpendicular to the mounting plate to a first preset height h1. The pressure detection probe detects the pressure N at this time. The bending driver is used to drive the bending punch to move a preset distance S downward outside the bending position of the spring body to bend the spring body, where S = a + f(kN / h1), a is the standard displacement, f() is the preset correlation function, k is the standard elastic performance parameter, and a, k, and h1 are all preset constants greater than 0.

[0012] Furthermore, in the parking system spring bending and forming device of this application, f(kN / h1)=b*(kN / h1), where b is a preset constant and b>0. As a preferred embodiment of this application, f() is a direct proportional function.

[0013] Furthermore, in this application, a parking system spring bending and forming device includes a testing station and a roller rotation detection module. The roller rotation detection module faces the testing station and includes a detection movement module, a drive rotor, a rotor driver, and a speed detector. The drive rotor and rotor driver are mounted on the movement component of the detection movement module. The detection movement module drives the drive rotor to contact the side of the roller. The drive rotor and the roller's axis are parallel. The rotor driver is connected to the drive rotor. The speed detector detects the roller's rotational speed. As a preferred embodiment of this application, based on the above device, the roller rotation detection module is used to detect whether the roller's rotational smoothness is acceptable after installation. The principle is as follows: after the drive rotor contacts the roller's side, the rotor driver drives the drive rotor to rotate at a preset speed. The drive rotor drives the roller to rotate. The speed detector detects the roller's rotational speed. If the roller rotates synchronously with the drive rotor, the roller's rotational smoothness is acceptable; if the roller's rotation lags behind the drive rotor, the roller's rotational smoothness is unacceptable.

[0014] Furthermore, in a parking system spring bending and forming device of this application, the detection moving module includes a transmission cylinder and a moving frame. The transmission cylinder is convexly connected to the moving frame. The rotor driver is mounted on the moving frame, and the driving rotor is mounted on the output shaft of the rotor driver. The speed detector is a rotary encoder. A transmission wheel is mounted on the input shaft of the speed detector. The transmission wheel is parallel to the axis of the driving rotor. An encoder frame is mounted on the moving frame. The encoder frame is movably connected to the moving frame. The speed detector is mounted on the encoder frame. An elastic element is also included, connected between the encoder frame and the moving frame. In the reset state of the roller rotation detection module, under the action of the elastic element, the transmission wheel abuts against the driving rotor. When the roller rotation detection module is working, the transmission cylinder drives the moving frame to move until the roller is positioned between the driving rotor and the transmission wheel. At this time, the side of the roller abuts against both the driving rotor and the transmission wheel, and the transmission wheel is separated from the driving rotor. As a preferred embodiment of this application, the encoder frame and the movable frame are connected by an elastic element so that the encoder frame and the movable frame form a pair of clamping arms. The transmission wheel and the drive rotor serve as the clamps of the clamping arms. After the detection and movement module is started, the transmission cylinder drives the movable frame to move so that the roller is clamped between the transmission wheel and the drive rotor. At this time, the transmission wheel is separated from the drive rotor. The drive rotor rotates at a preset speed, driving the roller to rotate. Then, the roller drives the transmission wheel to rotate. The speed detector collects the speed of the transmission wheel to determine whether the roller rotates synchronously with the drive rotor, so as to determine the smoothness of the roller rotation.

[0015] A method for operating a parking system spring bending and forming device includes the following steps:

[0016] After the clamp is moved to the bending station, steps S41-S44 are included.

[0017] S41: The probe driver drives the pressure detection probe to move the roller upward to the first preset height h1, and the pressure detection probe detects the pressure N at this time;

[0018] S42: The bending driver drives the bending punch to move downward a preset distance S at the junction of the mounting plate and the extension plate to bend the spring sheet body. Where S = a + b * (kN / h1), a is the standard displacement, b is the correlation coefficient, k is the standard elastic performance parameter, and a, k, b, and h1 are all preset constants greater than 0.

[0019] S43: The probe driver first drives the pressure detection probe to push the roller upward to the second preset height h2. After the pressure detection probe returns to its original position, the probe driver then drives the pressure detection probe to push the roller upward to the third preset height h3. At this time, the pressure detection probe detects the pressure it receives. If the pressure exceeds the preset range, the product is deemed unqualified. The roller being at the second preset height corresponds to the limit stroke of the parking system spring when in use, and the roller being at the second preset height corresponds to the installation state of the parking system spring when in use.

[0020] Step S43 is used to check whether the spring force performance of the parking system spring after bending meets the standard. First, the roller is pushed to the limit stroke of use, i.e., the second preset height. Then, the spring force generated when the roller is in the installation state of use, i.e., the third preset height, is checked. This is to prevent the spring force from being unqualified after the spring sheet deforms to the limit stroke and then resets, thereby ensuring product quality.

[0021] As can be seen from the above technical solution, the present invention has the following beneficial effects:

[0022] This invention provides a parking system spring bending and forming device and its working method. Based on the device, its principle is as follows: When moving to the bending station, the bending module starts, first pushing the roller in the z-direction parallel to a first preset height via the bending punch. The pressure N at this time is detected by the pressure detection probe, thereby calculating the elastic performance parameter N / h1 of the current spring body. k is the standard elastic performance parameter, and f(kN / h1) is the compensation stroke for the elastic performance deviation. During the bending process, the forming limiting surface is used to limit the inner side of the bending position of the spring body. The bending punch moves a preset distance S in the z-direction at the junction of the mounting plate and the extension plate to bend the spring body, S=a+f(kN / h1), where f(kN / h1) compensates for the elastic performance deviation. This achieves automated spring production, improves production efficiency, and ensures the product qualification rate. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the parking system spring in the embodiments of this application;

[0024] Figure 2 This is an exploded view of the components that make up the special spring for the parking system in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of a parking system spring assembly device according to an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the clamp in an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the assembly module in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the pressing module in the embodiments of this application;

[0029] Figure 7 This is a schematic diagram of the positioning module in the embodiments of this application;

[0030] Figure 8 This is a schematic diagram of the feeding module and the top-loading module in the embodiments of this application;

[0031] Figure 9 This is a schematic diagram of the feeding module in the embodiments of this application;

[0032] Figure 10 This is a three-dimensional schematic diagram of the roller rotation detection module in the embodiments of this application;

[0033] Figure 11 This is a plan view of the roller rotation detection module in an embodiment of this application;

[0034] Figure 12 This is a schematic diagram of each active component in the roller rotation detection module in the embodiments of this application;

[0035] Figure 13 This is a schematic diagram of the bending module in an embodiment of this application;

[0036] Figure 14 This is a schematic diagram of the bending execution module, spring performance detection module, and locking module in the embodiments of this application;

[0037] Figure 15 This is a schematic diagram of the bending execution module and the locking module in the embodiments of this application;

[0038] Figure 16 This is a schematic diagram of the spring performance detection module in an embodiment of this application;

[0039] Figure 17This is a schematic diagram of the various states during the bending process of a parking system spring assembly device in an embodiment of this application.

[0040] In the picture:

[0041] 1- Parking system spring; 11- Spring body; 110- Mounting hole; 111- Mounting plate; 112- Extension plate; 113- Connecting plate; 114- Through hole; 12- Pivot; 13- Roller;

[0042] 2-Material transfer assembly; 21-Material transfer drive device; 211-Disc; 213-Positioning post; 22-Clamping seat; 221-Limiting clamp; 222-Clamping block driver; 223-Bending limiting surface;

[0043] 3-Assembly module; 31-Feeding module; 311-Feeding rack; 3111-Pivot groove; 3112-Roller groove; 3113-Feeding plate; 312-Feeding driver; 32-Ejector module; 321-Ejector drive cylinder; 322-Fixing slide; 3221-Ejector pin; 33-Pressure module; 331-Pressure block; 3311-Protrusion; 332-Pressure drive cylinder; 34-Positioning module; 341-Mounting platform; 342-Positioning drive device; 35-Positioning block; 350-Positioning groove; 36-Limiting frame; 361-Limiting plate;

[0044] 5-Roller rotation detection module; 51-Drive rotor; 52-Speed ​​detector; 521-Transmission wheel; 53-Detection movement module; 531-Transmission cylinder; 532-Moving frame; 533-Encoder frame; 54-Rotor driver; 55-Elastic element;

[0045] 6-Bending module; 61-Bending execution module; 611-Bending driver; 612-Bending punch; 62-Spring performance testing module; 621-Pressure detection probe; 622-Probe driver; 63-Locking module; 631-Locking driver; 632-Locking moving seat; 6320-Slide groove; 6321-Locking post; 64-Mounting bracket; 641-Guide post; 642-Hinge seat; 643-Slide rail; 65-Transmission frame. Detailed Implementation

[0046] Example

[0047] Combination Figure 3 The parking system spring assembly equipment shown includes:

[0048] Material transfer assembly 2, which includes a material transfer drive device 21 and Figure 4The clamp 22 shown is used to fix the spring body 11. The spring body 11 includes a mounting plate 111 and an extension plate 112. The front end of the extension plate 112 is provided with a pair of connecting plates 113, and the pair of connecting plates 113 are provided with through holes 114. The clamp 22 is used to limit the posture of the spring body 11. The clamp 22 is provided with a forming limiting surface 223 below the bending position of the spring body 11, and the extension plate 112 extends out of the forming limiting surface 223. The material transfer drive device 21 is used to drive the clamp 22 to move sequentially to a set of workstations, which sequentially include an assembly workstation and a bending workstation.

[0049] Assembly module 3, facing the assembly station, is used to assemble pivot 12 and roller 13 onto connecting plate 113; Figure 5 The assembly module 3 shown includes a feeding module 31, a top-feeding module 32, and a pressing module 33. The feeding module 31 includes a feeding frame 311 and a feeding driver 312. The pivot 12 and the roller 13 are axially spaced and coaxially positioned on the feeding frame 311. The feeding driver 312 is used to move the feeding frame 311 until the roller 13 is positioned between a pair of connecting plates 113. At this time, the pivot 12 is axially outside one of the connecting plates 113 and directly opposite the through hole 114. The top-feeding module 32 is used to axially push the pivot 12 until the pivot 12 passes through the roller 13 and the pair of through holes 114. The pressing module 33 is used to press the outer wall of the through hole 114 until the pivot 12 is tightly fitted with the through hole 114.

[0050] Bending module 6, bending module 6 is directly opposite the bending station, combined with Figure 13 The bending module 6 shown includes a bending execution module 61 and a spring performance detection module 62. The bending execution module 61 includes a bending driver 611 and a bending punch 612, combined with... Figure 16 As shown, the spring sheet performance testing module 62 includes a pressure detection probe 621 and a probe driver 622. The probe driver 622 is used to drive the pressure detection probe 621 to push the roller 13 to move to a first preset height h1 in the direction perpendicular to the mounting plate 111. The pressure detection probe 621 detects the pressure N at this time. The bending driver 611 is used to drive the bending punch 612 to move downward a preset distance S outside the bending position of the spring sheet body 11 to bend the spring sheet body 11. Where S=a+f(kN / h1), a is the standard displacement, f() is the preset correlation function, k is the standard elastic performance parameter, and a, k, and h1 are all preset constants greater than 0.

[0051] Based on the above device, the principle is as follows: the clamp 22 is used as a tool to fix the spring body 11, so as to limit the posture of the spring body 11. The pivot 12 is exposed outside the clamp 22. The material transfer drive device 21 is used to transfer the clamp 22, so that the spring body 11 moves to each station. When it moves to the assembly station, the assembly module 3 is started. The top material module 32 moves the pivot 12 and the roller 13 until the roller 13 is placed between a pair of connecting plates 113. At this time, the pivot 12 is located on the axial outside of the connecting plate 113. The connecting plate 113, the pivot 12, and the roller 13 are coaxial. The top material module 32 pushes the pivot 12 so that the roller 13 passes into the roller 13 and a pair of through holes 114. Then, the pressure module 33 squeezes the outer wall of the through hole 114 so that the pivot 12 is fixed in the through hole 114. This allows the pivot 12 and roller 13 to be mounted on the spring body 11. When moving to the bending station, the bending module 6 starts, first pushing the roller 13 to a first preset height parallel to the z-direction via the bending punch 612. The pressure N at this time is detected by the pressure detection probe 621, thereby calculating the elastic performance parameter N / h1 of the current spring body 11. k is the standard elastic performance parameter, and f(kN / h1) is the compensation stroke for the elastic performance deviation. During the bending process, the forming limiting surface 223 is used to limit the inner side of the bending position of the spring body 11 during the bending process. The bending punch 612 moves a preset distance S in the z-direction outside the bending position of the spring body 11 to bend the spring body 11, S=a+f(kN / h1), where f(kN / h1) compensates for the deviation of the elastic performance. This ensures the product qualification rate. It should be noted that the value of k is derived from the average value of N / h1 measured for qualified products under the standard stroke a of the bending punch 612. After determining the value of k, a compensation stroke test is conducted. A set of spring sheet bodies 11 are taken as samples, and the value of N / h1 of the samples is measured. The elastic performance difference kN / h1 is calculated, and the results are classified by gradient. After the number of samples with different gradient elastic performance differences reaches a preset number, the compensation stroke of the samples under each gradient is assigned a gradient value to replace f(kN / h1). Then, the bending stroke S of the extension plate 112 is S = a + assignment. After the bending operation, the assignment corresponding to the qualified product sample is retained, and the assignment corresponding to the qualified product sample is the qualified assignment value. The qualified assignment values ​​obtained under each elastic performance difference gradient sample are recorded and substituted into the formula: qualified assignment value = f(kN / h1). The correlation function f() is obtained by fitting and solving. In this embodiment, f(kN / h1) = b*(kN / h1), where b is a preset constant and b > 0. f() is a direct proportional function, and a direct proportional function is used to fit and solve f().

[0052] In this embodiment, the material transfer drive device 21 includes a disk 211 and a disk drive device that is pulsatorically connected to the disk 211. The disk drive device is a motor or a cam divider. The disk drive device is used to drive the disk 211 to rotate. The clamp 22 is mounted on the disk 211, and a set of workstations are arranged in a circumferential array around the disk 211. In other embodiments, the material transfer drive device 21 can be a linear motion module.

[0053] Combination Figure 4 As shown, in this embodiment, the clamping seat 22 is provided with a clamping groove adapted to the mounting plate 111, and the mounting plate 111 is installed in the clamping groove. The clamping seat 22 is provided with a limiting clamping block 221 and a clamping block driver 222 that is pulsatorically connected to the limiting clamping block 221. The clamping block driver 222 is used to drive the limiting clamping block 221 to move so as to press the mounting plate 111 into the clamping groove. Specifically, the clamping block driver 222 is a rotary clamping cylinder.

[0054] Combination Figures 5 to 9 In this embodiment, the assembly module 3 includes a positioning module 34, which includes a mounting platform 341 and a positioning drive device 342 that is connected to the mounting platform 341. The positioning drive device 342 is used to drive the mounting platform 341 to reciprocate in the vertical direction. The feeding module 31 and the top-feeding module 32 are mounted on the mounting platform 341. A positioning block 35 is mounted on the mounting platform 341. The positioning block 35 is provided with a positioning groove 350 that is adapted to a pair of connecting plates 113. The side of the connecting plate 113 away from the pressing position of the pressing module 33 is attached to the bottom of the positioning groove 350. Based on the above-mentioned device, after the material transfer drive device 21 drives the clamp 22 to move to the assembly station, the positioning module 34 starts first, and the positioning drive device 342 drives the mounting table 341 to move to the connecting plate 113 and enter the positioning groove 350 to ensure the accuracy of the positioning of the connecting plate 113 when the subsequent assembly action is performed. When the pressing module 33 performs the pressing operation, the positioning block 35 is used to support the connecting plate 113 and provide a reaction force. In this embodiment, the top material module 32 includes a top material drive cylinder 321 and a fixed material slide 322. The top material drive cylinder 321 is connected to the fixed material slide 322. The fixed material slide 322 is slidably mounted on the mounting table 341. The fixed material slide 322 is provided with a pin 3221 on the side near the positioning block 35. When the top material module 32 starts, the top material drive cylinder 321 drives the fixed material slide 322 to move to the pin 3221 to push the pivot 12 to pass through the roller 13 and a pair of through holes 114. The pressing module 33 includes a pressing block 331 and a pressing drive cylinder 332. The pressing block 331 is positioned above the positioning block 35. The pressing drive cylinder 332 is connected to the pressing block 331 in a transmission manner. The bottom of the pressing block 331 is provided with a pair of protrusions 3311. When pressing is performed, the protrusions 3311 are pressed against the upper end of the outer wall of the through hole 114.

[0055] In this embodiment, combined with Figure 8 and Figure 9 As shown, the feeding frame 311 includes a pair of feeding plates 3113, each with a pivot groove 3111 and a roller groove 3112 corresponding to the pivot 12 and roller 13, respectively. The pivot groove 3111 and roller groove 3112 are open at both ends axially. The frame also includes a limiting frame 36 mounted on a mounting platform 341. The limiting frame 36 includes a set of three vertically arranged limiting plates 361, spaced apart in the thickness direction. Adjacent pairs of limiting plates 361 form a feeding limiting groove. During feeding, the feeding plates 3113 move within the feeding limiting groove. During feeding, the side of the limiting plate 361, i.e., the sidewall of the feeding limiting groove, restricts the axial movement of the pivot 12 and roller 13. In this embodiment, before feeding, the pivot 12 and roller 13 are axially inserted into the pivot groove 3111 and roller groove 3112.

[0056] In this embodiment, the workstation includes a testing workstation, which is located after the assembly workstation, in conjunction with... Figures 10 to 12As shown, the system also includes a roller rotation detection module 5, which faces the detection station. The roller rotation detection module 5 includes a detection movement module 53, a drive rotor 51, a rotor driver 54, and a speed detector 52. The drive rotor 51 and rotor driver 54 are mounted on the movement assembly of the detection movement module 53. The detection movement module 53 drives the drive rotor 51 to move until it contacts the side of the roller 13. The drive rotor 51 is parallel to the axis of the roller 13. The rotor driver 54 is connected to the drive rotor 51. The speed detector 52 detects the rotational speed of the roller 13. Based on the above device, the roller rotation detection module 5 is used to detect whether the smoothness of the roller 13's rotation after installation is qualified. The principle is as follows: after the drive rotor 51 and the roller 13 come into contact with each other on the side, the rotor driver 54 drives the drive rotor 51 to rotate at a preset speed. The drive rotor 51 drives the roller 13 to rotate. The speed detector 52 detects the speed of the roller 13. If the roller 13 rotates synchronously with the drive rotor 51, the smoothness of the roller 13 rotation is qualified. If the roller 13 rotates lagging behind the drive rotor 51, it means that the smoothness of the roller 13 rotation is unqualified. In this embodiment, the detection moving module 53 includes a transmission cylinder 531 and a moving frame 532. The transmission cylinder 531 is connected to the moving frame 532 in a transmission manner. The rotor driver 54 is mounted on the moving frame 532, and the driving rotor 51 is mounted on the output shaft of the rotor driver 54. The speed detector 52 is a rotary encoder. A transmission wheel 521 is mounted on the input shaft of the speed detector 52. The transmission wheel 521 is parallel to the axis of the driving rotor 51. An encoder frame 533 is mounted on the moving frame 532. The encoder frame 533 is movably connected to the moving frame 532. In this embodiment, the moving frame 532 and the encoder frame 533 are hinged. The speed detector 52 is mounted on the encoder frame 533. It also includes an elastic element 55. In this embodiment, the elastic element 55 is a tension spring. The elastic element 55 is connected between the encoder frame 533 and the moving frame 532.

[0057] When the roller rotation detection module 5 is in the reset state, under the action of the elastic element 55, the transmission wheel 521 abuts against the drive rotor 51.

[0058] When the roller rotation detection module 5 is working, the transmission cylinder 531 drives the moving frame 532 to move the roller 13 between the drive rotor 51 and the transmission wheel 521. At this time, the side of the roller 13 is in contact with the drive rotor 51 and the transmission wheel 521 respectively, and the transmission wheel 521 is separated from the drive rotor 51. Based on the above device, the elastic element 55 connects the encoder frame 533 and the moving frame 532 so that the encoder frame 533 and the moving frame 532 form a pair of clamping arms. The transmission wheel 521 and the drive rotor 51 serve as the clamps of the clamping arms. After the detection moving module 53 is started, the transmission cylinder 531 drives the moving frame 532 to move so that the roller 13 is clamped between the transmission wheel 521 and the drive rotor 51. At this time, the transmission wheel 521 is separated from the drive rotor 51. The drive rotor 51 rotates at a preset speed, driving the roller 13 to rotate. Then, the roller 13 drives the transmission wheel 521 to rotate. The speed detector 52 collects the speed of the transmission wheel 521 to determine whether the roller 13 rotates synchronously with the drive rotor 51, so as to determine the smoothness of the rotation of the roller 13.

[0059] Specifically, the mounting plate 111 is provided with mounting holes 110. In use, it is connected to the parking system by screws passing through the mounting holes 110. In this embodiment, the clamp 22 is provided with positioning pins 213 corresponding to the mounting holes 110, and the positioning pins 213 pass through the mounting holes 110 from bottom to top.

[0060] Combination Figures 13 to 15 As shown, the bending module 6 includes a locking module 63, which includes a locking driver 631 and a locking moving seat 632. The locking driver 631 is connected to the locking moving seat 632 and is used to drive the locking moving seat 632 to move vertically. The lower end of the locking moving seat 632 is provided with a locking post 6321, and the bottom of the locking post 6321 is provided with a sleeve hole that adapts to the positioning post 213. The bending module 6 also includes a mounting bracket 64. Both the bending driver 611 and the locking driver 631 are linear drive cylinders. The bending driver 611 is mounted on the mounting bracket 64, and the bending punch 612 is mounted on the moving component of the bending driver 611. Locking actuator 631 and locking moving seat 632 are located on both sides of bending actuator 611 in the horizontal direction. The cylinder of locking actuator 631 is rotatably connected to mounting bracket 64. A transmission frame 65 is rotatably connected to the telescopic rod of locking actuator 631. A transmission slider (not shown) is provided at the end of transmission frame 65 away from locking actuator 631. A horizontally extending groove 6320 is provided on the locking moving seat 632 corresponding to the transmission slider. The transmission slider is slidably disposed in the groove 6320. A hinge seat 642 is provided on mounting bracket 64, which is hinged to transmission frame 65. Locking actuator 631 and locking moving seat 632 are located on both sides of hinge seat 642 in the horizontal direction. In this embodiment, the transmission slider is a roller (not shown) rotatably mounted on transmission frame 65.

[0061] Based on the above device, the locking actuator 631 drives the transmission frame 65 to achieve longitudinal movement of the locking moving seat 632. During locking, the sleeve hole of the locking pin 6321 passes through the positioning pin 213, causing the locking pin 6321 to press against the upper end of the mounting plate 111, simulating the screw fixing of the mounting plate 111. In addition, since both the bending actuator 611 and the locking actuator 631 are linear drive cylinders, and the distance between the locking moving seat 632 and the bending punch 612 is too close, it is impossible to set the bending actuator 611 and the locking actuator 631 at equal intervals. In this embodiment, through the above device, the locking actuator 631 and the locking moving seat 632 are respectively set on both sides of the bending actuator 611, realizing the separate driving of the two linear moving parts that are too close together. Specifically, a vertical slide rail 643 and a pair of vertical guide pins 641 are fixed on the mounting frame 64, and the locking moving seat 632 is sleeved on the pair of guide pins 641; the bending punch 612 is slidably mounted on the slide rail 643.

[0062] The working method of a parking system spring assembly device in this embodiment includes the following steps:

[0063] S1: Install the spring body 11 onto the clamp 22, and drive the material transfer device 21 to move the clamp 22 to the position of each station;

[0064] S2: After the clamp 22 moves to the assembly station, steps S21-S23 are included:

[0065] S21: The feeding module 31 feeds the roller 13 between the connecting plates 113 and the pivot 12 to the outside of the connecting plate 113. At this time, the roller 13, the pivot 12 and the through hole 114 are coaxial.

[0066] S22: The ejector module 32 pushes the pivot 12 into the roller 13 and a pair of through holes 114;

[0067] S23: The pressing module 33 presses the outer wall of the perforation 114 to the pivot 12 and the perforation 114 are tightly fitted together;

[0068] S3: After the clamp 22 moves to the inspection station, steps S31-S32 are included:

[0069] S31: The transmission cylinder 531 drives the moving frame 532 to move until the roller 13 is placed between the drive rotor 51 and the transmission wheel 521. At this time, the side of the roller 13 is in contact with the drive rotor 51 and the transmission wheel 521 respectively, and the transmission wheel 521 is separated from the drive rotor 51.

[0070] S32: The rotor driver 54 drives the drive rotor 51 to rotate at a preset speed. The speed detector 52 detects whether the speed of the transmission wheel 521 is less than the preset value. If it is less than the preset value, the smoothness of the roller 13 rotation is deemed unqualified; otherwise, it is deemed qualified.

[0071] S4: After the clamp 22 moves to the bending station, it combines... Figure 17 As shown, steps S41-S44 are included:

[0072] S41: The probe driver 622 drives the pressure detection probe 621 to push the roller 13 upward to the first preset height h1, and the pressure detection probe 621 detects the pressure at this time as N;

[0073] S42: The bending driver 611 drives the bending punch 612 to move downward a preset distance S at the junction of the mounting plate 111 and the extension plate 112 to bend the spring sheet body 11, where S=a+b*(kN / h1), a is the standard displacement, b is the correlation coefficient, k is the standard elastic performance parameter, and a, k, b, and h1 are all preset constants greater than 0;

[0074] S43: The probe driver 622 first drives the pressure detection probe 621 to push the roller 13 upward to the second preset height h2. After the pressure detection probe 621 returns to its original position, the probe driver 622 then drives the pressure detection probe 621 to push the roller 13 upward to the third preset height h3. At this time, the pressure detection probe 621 detects the pressure it receives. If the pressure exceeds the preset range, the product is deemed unqualified. The roller 13 being at the second preset height corresponds to the limit stroke of the parking system spring 1 during use, and the roller 13 being at the second preset height corresponds to the installation state of the parking system spring 1 during use.

[0075] Step S43 is used to check whether the elasticity performance of the parking system spring 1 after bending meets the standard. First, the roller 13 is pushed to the limit stroke of use, i.e., the second preset height. Then, the elasticity generated when the roller 13 is in the installation state of use, i.e., the third preset height, is checked. This is to prevent the elasticity from being unqualified after the spring sheet deforms to the limit stroke and then resets. This ensures product quality.

[0076] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A device for bending and forming a parking system spring, characterized in that: include: The material transfer assembly (2) includes a material transfer drive device (21) and a clamp (22). The clamp (22) is used to fix the spring body (11). The spring body (11) includes a mounting plate (111) and an extension plate (112). A roller (13) is pivotally connected to the front end of the extension plate (112). The clamp (22) is provided with a forming limiting surface (223) below the bending position of the spring body (11). The extension plate (112) extends out of the forming limiting surface (223). The material transfer drive device (21) is used to drive the clamp (22) to move to a preset station, which includes a bending station. A bending module (6) is positioned opposite the bending station. The bending module (6) includes a bending execution module (61) and a spring performance detection module (62). The bending execution module (61) includes a bending driver (611) and a bending punch (612). The spring performance detection module (62) includes a pressure detection probe (621) and a probe driver (622). The probe driver (622) is used to drive the pressure detection probe (621) to push the roller (13) perpendicular to the safety angle. The plate (111) moves to a first preset height h1 in the direction of the plate, and the pressure detection probe (621) detects the pressure N at this time. The bending driver (611) is used to drive the bending punch (612) to move a preset distance S downward outside the bending position of the spring body (11) to bend the spring body (11), where S=a+f(kN / h1), a is the standard displacement, f() is the preset correlation function, k is the standard elastic performance parameter, and a, k, and h1 are all preset constants greater than 0.

2. The parking system spring bending and forming device according to claim 1, characterized in that: f(kN / h1)=b*(kN / h1), where b is a preset constant and b>0.

3. The parking system spring bending and forming device according to claim 1, characterized in that: The material transfer drive device (21) includes a disc (211) and a disc drive device that is connected to the disc (211) for transmission. The disc drive device is used to drive the disc (211) to rotate. The clamp (22) is installed on the disc (211) and a set of workstations are arranged in a circumferential array around the disc (211).

4. The parking system spring bending and forming device according to claim 1, characterized in that: The clamping seat (22) is provided with a clamping groove adapted to the mounting plate (111). The mounting plate (111) is installed in the clamping groove. The clamping seat (22) is provided with a limiting clamping block (221) and a clamping block driver (222) that is pulsatorically connected to the limiting clamping block (221). The clamping block driver (222) is used to drive the limiting clamping block (221) to move so as to press the mounting plate (111) into the clamping groove.

5. The parking system spring bending and forming device according to claim 1, characterized in that: The workstation includes a detection workstation and a roller rotation detection module (5). The roller rotation detection module (5) faces the detection workstation. The roller rotation detection module (5) includes a detection moving module (53), a drive rotor (51), a rotor driver (54), and a speed detector (52). The drive rotor (51) and the rotor driver (54) are mounted on the moving component of the detection moving module (53). The detection moving module (53) is used to drive the drive rotor (51) to move until the drive rotor (51) abuts against the side of the roller (13). The drive rotor (51) is parallel to the axis of the roller (13). The rotor driver (54) is connected to the drive rotor (51) in a transmission connection. The speed detector (52) is used to detect the rotation speed of the roller (13).

6. The parking system spring bending and forming device according to claim 5, characterized in that: The detection moving module (53) includes a transmission cylinder (531) and a moving frame (532). The transmission cylinder (531) is connected to the moving frame (532) in a transmission manner. The rotor driver (54) is mounted on the moving frame (532), and the drive rotor (51) is mounted on the output shaft of the rotor driver (54). The speed detector (52) is a rotary encoder. A transmission wheel (521) is mounted on the input shaft of the speed detector (52). The transmission wheel (521) is parallel to the axis of the drive rotor (51). An encoder frame (533) is mounted on the moving frame (532). The encoder frame (533) is movably connected to the moving frame (532). The speed detector (52) is mounted on the encoder frame (533). The module also includes an elastic element (55), which is connected between the encoder frame (533) and the moving frame (532). When the roller rotation detection module (5) is in the reset state, under the action of the elastic element (55), the transmission wheel (521) abuts against the drive rotor (51). When the roller rotation detection module (5) is working, the transmission cylinder (531) drives the moving frame (532) to move to the position of the roller (13) between the drive rotor (51) and the transmission wheel (521). At this time, the side of the roller (13) is in contact with the drive rotor (51) and the transmission wheel (521) respectively, and the transmission wheel (521) is separated from the drive rotor (51).

7. The parking system spring bending and forming device according to claim 1, characterized in that: The mounting plate (111) is provided with mounting holes (110), and the clamp (22) is provided with positioning posts (213) corresponding to the mounting holes (110). The positioning posts (213) pass through the mounting holes (110) from bottom to top. The bending module (6) includes a locking module (63), which includes a locking driver (631) and a locking moving seat (632). The locking driver (631) is connected to the locking moving seat (632) in a transmission manner. The locking driver (631) is used to drive the locking moving seat (632) to move in the vertical direction. The lower end of the locking moving seat (632) is provided with a locking post (6321), and the bottom of the locking post (6321) is provided with a sleeve hole that is adapted to the positioning post (213). The bending module (6) also includes a mounting bracket (64). Both the bending actuator (611) and the locking actuator (631) are linear drive cylinders. The bending actuator (611) is mounted on the mounting bracket (64). The bending punch (612) is mounted on the moving assembly of the bending actuator (611). The locking actuator (631) and the locking moving seat (632) are located on both sides of the bending actuator (611) in the horizontal direction. The cylinder body of the locking actuator (631) is rotatably connected to the mounting bracket (64). A transmission frame (65) is rotatably connected to the telescopic rod of the device. A transmission slider is provided at the end of the transmission frame (65) away from the locking driver (631). A horizontally extending groove (6320) is provided on the locking moving seat (632) corresponding to the transmission slider. The transmission slider is slidably disposed in the groove (6320). A hinge seat (642) is provided on the mounting frame (64). The hinge seat (642) is hinged to the transmission frame (65). The locking driver (631) and the locking moving seat (632) are on both sides of the hinge seat (642) in the horizontal direction.

8. The working method of the parking system spring bending and forming device according to claim 1, characterized in that, Includes the following steps: S4: After the clamp (22) moves to the bending station, steps S41-S43 are included. S41: The probe driver (622) drives the pressure detection probe (621) to push the roller (13) to move upward to the first preset height h1, and the pressure detection probe (621) detects that the pressure at this time is N; S42: The bending driver (611) drives the bending punch (612) to move downward a preset distance S at the junction of the mounting plate (111) and the extension plate (112) to bend the spring body (11), where S=a+b*(kN / h1), a is the standard displacement, b is the correlation coefficient, k is the standard elastic performance parameter, and a, k, b, and h1 are all preset constants greater than 0; S43: The probe driver (622) first drives the pressure detection probe (621) to push the roller (13) upward to the second preset height h2. After the pressure detection probe (621) is reset downward, the probe driver (622) then drives the pressure detection probe (621) to push the roller (13) upward to the third preset height h3. At this time, the pressure detection probe (621) detects the pressure at this time. If the pressure exceeds the preset range, the product is judged to be unqualified. Among them, when the roller (13) is at the second preset height, it corresponds to the limit stroke of the parking system special spring (1) when it is used. When the roller (13) is at the third preset height, it corresponds to the installation state of the parking system special spring (1) when it is used.

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