A parking system spring assembly device and its working method

Abstract

The present invention relates to the technical field of automotive spring manufacturing, and particularly relates to a spring assembly device for a parking system and its working method. A spring assembly device for a parking system includes: a material transfer assembly, which includes a material transfer driving device and a clamping seat. The clamping seat is used to fix the main body of the elastic piece. Below the bending position of the main body of the elastic piece corresponding to the clamping seat, there is a forming limiting surface, and an extension plate extends out of the forming limiting surface; the material transfer driving device is used to drive the clamping seat to move to a set of working positions in sequence, and the working positions sequentially include an assembly working position and a bending working position; an assembly module, which is opposite to the assembly working position, and the assembly module is used to assemble a pivot and a roller on a connecting plate; a bending module, which includes a bending execution module and a spring piece performance detection module, can realize the automatic production of the parking system spring, improve the production efficiency, and can improve the qualified rate of products.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive spring manufacturing, and particularly relates to a parking system spring assembly device and its working method. Background Art

[0002] Combined with Figure 1 and Figure 2 As shown, the special spring 1 for the parking system includes a leaf spring body 11. The leaf spring body 11 includes a mounting plate 111 and an extension plate 112. There is a fold angle between the mounting plate 111 and the extension plate 112. A pair of connecting plates 113 are provided at the front end of the extension plate 112. A pivot 12 is installed between the pair of connecting plates 113. A through hole 114 adapted to the pivot 12 is provided at the front end of the connecting plate 113. A roller 13 is sleeved on the pivot 12. The pair of connecting plates 113 are arranged at both axial ends of the roller 13.

[0003] Combined with Figure 17 As shown, in use, the mounting plate 111 is fixed by screws. Due to the fold angle, in the free state, the axis line of the roller 13 is on one side of the z direction of the mounting plate 111, and the z direction is perpendicular to the plane where the mounting plate 111 is located. In the use state, the roller 13 will be limited on one side of the z direction. Compared with the free state, the axis line of the roller 13 moves a certain distance in the reverse 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 line of the roller 13 and the mounting plate 111 in the z direction is a fixed value.

[0004] Therefore, the elastic force of the roller 13 in the z direction depends on two aspects: one is the distance between the axis line of the roller 13 and the mounting plate 111 in the z direction 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 between the axis line of the roller 13 and the mounting plate 111 in the z direction can be converted into the bending angle between the mounting plate 111 and the extension plate 112; the other is the elastic performance of the leaf spring body 11.

[0005] Ideally, the elastic performance of the leaf spring body 11 should be determined. Then the bending angle between the mounting plate 111 and the extension plate 112 should be a constant value. By ensuring that the fold angle between the mounting plate 111 and the extension plate 112 in the free state is a preset angle, it can ensure that in the use state, the roller 13 generates a preset pressure in the z direction. However, in the actual production process, on the premise of ensuring the bending angle between the mounting plate 111 and the extension plate 112, in the use state, the pressure generated by the roller 13 in the z direction will deviate and even exceed the design range. This affects the qualified rate of the product. Summary of the Invention

[0006] To overcome the deficiencies of the above-mentioned prior art, the present invention provides a spring assembly device for a parking system, which can realize the automated production of the springs of the parking system, improve the production efficiency, and can also improve the qualification rate of the products.

[0007] To achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A spring assembly device for a parking system, comprising:

[0009] A material transfer assembly, the material transfer assembly includes a material transfer driving device and a clamping seat. The clamping seat is used to fix the main body of the elastic piece. The main body of the elastic piece includes a mounting plate and an extension plate. A pair of connecting plates are provided at the front end of the extension plate, and through holes are provided on the pair of connecting plates; the clamping seat is used to define the posture of the main body of the elastic piece. A forming limiting surface is provided below the clamping seat corresponding to the bending position of the main body of the elastic piece, and the extension plate extends out of the forming limiting surface; the material transfer driving device is used to drive the clamping seat to move to a set of working positions in sequence, and the working positions include an assembly working position and a bending working position in sequence;

[0010] An assembly module, the assembly module faces the assembly working position. The assembly module is used to assemble a pivot and a roller on the connecting plate; the assembly module includes a feeding module, a material ejecting module and a pressing module. The feeding module includes a feeding rack and a feeding driver. The pivot and the roller are axially spaced and their axial center lines are coaxial and placed on the feeding rack; the feeding driver is used to move the feeding rack to place the roller between the pair of connecting plates. At this time, the pivot is axially outside one of the connecting plates and faces the through hole; the material ejecting module is used to axially push the pivot so that the pivot passes through the roller and the pair of through holes; the pressing module is used to squeeze the outer wall of the through hole so that the pivot is tightly fitted with the through hole;

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

[0012] Further, in a spring assembly device for a parking system in the present application, f(k - N / h1) = b*(k - N / h1), b is a preset constant, and b > 0. As a preferred solution of the present application, in the present application, f() is a proportional function.

[0013] Further, a spring assembly device for a parking system in the present application, the workstations include an inspection workstation which is arranged after the assembly workstation, and further includes a roller rotation detection module. The roller rotation detection module faces the inspection workstation. The roller rotation detection module includes a detection movement module, a driving rotor, a rotor driver, and a rotational speed detector. The driving rotor and the rotor driver are arranged on the moving component of the detection movement module. The detection movement module is used to drive the driving rotor to move until the driving rotor abuts against the side surface of the roller. The axis of the driving rotor is parallel to the axis of the roller. The rotor driver is in transmission connection with the driving rotor. The rotational speed detector is used to detect the rotational speed of the roller. As a preferred solution of the present application, based on the above device, the roller rotation detection module is used to detect whether the smoothness of the roller rotation after installation is qualified. The principle is as follows: after the driving rotor abuts against the side surface of the roller, the rotor driver drives the driving rotor to rotate at a preset rotational speed. The driving rotor drives the roller to rotate. The rotational speed detector detects the rotational speed of the roller. If the roller rotates synchronously with the driving rotor, the smoothness of the roller rotation is qualified. If the rotation of the roller lags behind the driving rotor, it indicates that the smoothness of the roller rotation is unqualified.

[0014] Further, in a spring assembly device for a parking system in the present application, the detection movement module includes a transmission cylinder and a moving frame. The transmission cylinder is in transmission connection with the moving frame. The rotor driver is installed on the moving frame. The driving rotor is installed on the output shaft of the rotor driver. The rotational speed detector is a rotary encoder. A transmission wheel is installed on the input shaft of the rotational speed detector. The axis of the transmission wheel is parallel to the axis of the driving rotor. An encoder frame is installed on the moving frame. The encoder frame is movably connected to the moving frame. The rotational speed detector is installed on the encoder frame. An elastic member is further included. The elastic member is 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 member, the transmission wheel abuts against the driving rotor. When the roller rotation detection module works, the transmission cylinder drives the moving frame to move until the roller is placed between the driving rotor and the transmission wheel. At this time, the side surface of the roller abuts against the driving rotor and the transmission wheel respectively, and the transmission wheel is separated from the driving rotor. As a preferred solution of the present application, the elastic member connecting the encoder frame and the moving frame makes the encoder frame and the moving frame form a pair of clamping arms, and the transmission wheel and the driving rotor serve as the clamping heads of the clamping arms. After the detection movement module is started, the transmission cylinder drives the moving frame to move so that the roller is clamped between the transmission wheel and the driving rotor. At this time, the transmission wheel is separated from the driving rotor. The driving rotor rotates at a preset speed, drives the roller to rotate, and then drives the transmission wheel to rotate through the roller. The rotational speed detector collects the rotational speed of the transmission wheel to judge whether the roller rotates synchronously with the driving rotor, so as to judge the smoothness of the roller rotation.

[0015] A working method of a spring assembly device for a parking system includes the following steps:

[0016] S1: Install the shrapnel body on the clamping seat, and the material transfer driving device drives the clamping seat to move to the positions of each workstation;

[0017] S2: After the clamping seat moves to the assembly station, it includes steps S21 - S23:

[0018] S21: The feeding module sends the rollers between the connecting plates and the pivot to the outside of the connecting plates. At this time, the rollers, the pivot, and the perforations are coaxial.

[0019] S22: The ejecting module ejects the pivot into the rollers and a pair of perforations.

[0020] S23: The pressing module extrudes the outer wall of the perforation until the pivot is tightly fitted with the perforation.

[0021] S3: After the clamping seat moves to the inspection station, it includes steps S31 - S32:

[0022] S31: The driving cylinder drives the moving frame to move until the rollers are placed between the driving rotor and the transmission wheel. At this time, the sides of the rollers are respectively in contact with the driving rotor and the transmission wheel, and the transmission wheel is separated from the driving rotor.

[0023] S32: The rotor driver drives the driving rotor to rotate at a preset speed. The rotational speed detector detects whether the rotational speed of the transmission wheel is less than the preset value. If it is less than the preset value, it is determined that the rotational smoothness of the rollers is unqualified; otherwise, it is determined to be qualified.

[0024] S4: After the clamping seat moves to the bending station, it includes steps S41 - S44

[0025] S41: The probe driver drives the pressure detection probe to push the roller upward to the first preset height h1. The pressure detection probe detects the pressure N at this time.

[0026] 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 main body of the elastic piece. Among them, S = a + b*(k - N / h1), where 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.

[0027] 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 resets downward, 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 at this time. If the pressure exceeds the preset interval, it is determined that the product is unqualified; among them, when the roller is at the second preset height, it corresponds to the limit stroke when the special spring for the parking system is used, and when the roller is at the second preset height, it corresponds to the installation state when the special spring for the parking system is used.

[0028] Step S43 is used to detect whether the elastic performance of the special spring for the parking system after bending meets the standard. First, the roller is pushed to the limit stroke during use, i.e., the second preset height, and then the elastic force generated when the roller is in the installed state during use, i.e., the third preset height, is detected. This is to prevent the elastic force from being unqualified after the elastic piece deforms to the limit stroke and then resets. Thus, the product quality is ensured.

[0029] As can be seen from the above technical solutions, the present invention has the following beneficial effects:

[0030] The present invention provides a spring assembly device for a parking system. Based on the above device, its principle is as follows: The clamping seat is used as a tooling to fix the main body of the elastic piece to limit the posture of the main body of the elastic piece. The pivot shaft is exposed outside the clamping seat, and the material transfer driving device is used to transfer the clamping seat so that the main body of the elastic piece moves to each working station; when it moves to the assembly station, the assembly module is started, and the ejector module moves the pivot shaft and the roller to place the roller between a pair of connecting plates. At this time, the pivot shaft is located outside the axial direction of the connecting plate, and the connecting plate, the pivot shaft, and the roller are coaxial. The ejector module is used to push the pivot shaft to make the roller penetrate into the roller and a pair of through holes, and then the pressing module is used to squeeze the outer wall of the through hole to fix the pivot shaft in the through hole. Thus, the installation of the pivot shaft and the roller on the main body of the elastic piece is realized. When it moves to the bending station, the bending module is started. First, the bending punch is used to push the roller to move in the z direction to the first preset height, and the pressure N received at this time is detected by the pressure detection probe, so as to calculate the elastic performance parameter N / h1 of the current main body of the elastic piece. k is the standard elastic performance parameter, and f(k - N / h1) is the compensation stroke of the elastic performance deviation. During the bending process, the forming limit surface is used to limit the inner side of the bending position of the main body of the elastic piece during the bending process. 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 main body of the elastic piece, and S = a + f(k - N / h1), where f(k - N / h1) compensates for the deviation of the elastic performance. Thus, the automatic production of the spring is realized, the production efficiency is improved, and the qualified rate of the product is ensured. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the special spring for the parking system in the embodiment of the present application;

[0032] Figure 2 It is an exploded view of the components constituting the special spring for the parking system in the embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of a spring assembly device for a parking system in the embodiment of the present application;

[0034] Figure 4 It is a schematic diagram of the clamping seat in the embodiment of the present application;

[0035] Figure 5Schematic diagram of the assembly module in the embodiments of the present application;

[0036] Figure 6 Schematic diagram of the material pressing module in the embodiments of the present application;

[0037] Figure 7 Schematic diagram of the positioning module in the embodiments of the present application;

[0038] Figure 8 Schematic diagram of the feeding module and the ejecting module in the embodiments of the present application;

[0039] Figure 9 Schematic diagram of the feeding module in the embodiments of the present application;

[0040] Figure 10 3D schematic diagram of the roller rotation detection module in the embodiments of the present application;

[0041] Figure 11 Planar schematic diagram of the roller rotation detection module in the embodiments of the present application;

[0042] Figure 12 Schematic diagram of each movable component in the roller rotation detection module in the embodiments of the present application;

[0043] Figure 13 Schematic diagram of the bending module in the embodiments of the present application;

[0044] Figure 14 Structural schematic diagram of the bending execution module, the shrapnel performance detection module and the locking module in the embodiments of the present application;

[0045] Figure 15 Schematic diagram of the bending execution module and the locking module in the embodiments of the present application;

[0046] Figure 16 Schematic diagram of the shrapnel performance detection module in the embodiments of the present application;

[0047] Figure 17 Schematic diagram of each state during the bending process of a parking system spring assembly device in the embodiments of the present application.

[0048] In the figure:

[0049] 1 - Special spring for parking system; 11 - Shrapnel body; 110 - Mounting hole; 111 - Mounting plate; 112 - Extension plate; 113 - Connecting plate; 114 - Perforation; 12 - Pivot; 13 - Roller;

[0050] 2 - Material transfer component; 21 - Material transfer driving device; 211 - Disc; 213 - Positioning post; 22 - Clamping seat; 221 - Limit clamping block; 222 - Clamping block driver; 223 - Bending limit surface;

[0051] 3 - Assembly module; 31 - Feeding module; 311 - Feeding rack; 3111 - Pivot groove; 3112 - Roller groove; 3113 - Feeding plate; 312 - Feeding driver; 32 - Pushing module; 321 - Pushing driving cylinder; 322 - Fixed material slide; 3221 - Ejector pin; 33 - Pressing module; 331 - Pressing block; 3311 - Convex part; 332 - Pressing driving cylinder; 34 - Positioning module; 341 - Installation table; 342 - Positioning driving device; 35 - Positioning block; 350 - Positioning groove; 36 - Limiting frame; 361 - Limiting plate;

[0052] 5 - Roller rotation detection module; 51 - Driving rotor; 52 - Rotational speed detector; 521 - Transmission wheel; 53 - Detection movement module; 531 - Transmission cylinder; 532 - Movement frame; 533 - Encoder frame; 54 - Rotor driver; 55 - Elastic member;

[0053] 6 - Bending module; 61 - Bending execution module; 611 - Bending driver; 612 - Bending punch; 62 - Shrapnel performance detection module; 621 - Pressure detection probe; 622 - Probe driver; 63 - Locking module; 631 - Locking driver; 632 - Locking moving seat; 6320 - Chute; 6321 - Locking column; 64 - Mounting frame; 641 - Guide post; 642 - Hinge seat; 643 - Slide rail; 65 - Transmission frame. Detailed implementation manners Embodiment

[0054] Combined with Figure 3 A spring assembly device for a parking system as shown, comprising:

[0055] A material transfer assembly 2, the material transfer assembly 2 includes a material transfer driving device 21 and Figure 4 A clamp seat 22 as shown, the clamp seat 22 is used to fix the shrapnel body 11, the shrapnel body 11 includes a mounting plate 111 and an extension plate 112, a pair of connecting plates 113 are provided at the front end of the extension plate 112, and a through hole 114 is provided through the pair of connecting plates 113; the clamp seat 22 is used to define the posture of the shrapnel body 11, a forming limiting surface 223 is provided below the bending position of the clamp seat 22 corresponding to the shrapnel body 11, and the extension plate 112 extends out of the forming limiting surface 223; the material transfer driving device 21 is used to drive the clamp seat 22 to move to a set of workstations in sequence, and the workstations include an assembly workstation and a bending workstation in sequence;

[0056] An assembly module 3, the assembly module 3 faces the assembly workstation, and the assembly module 3 is used to assemble the pivot 12 and the roller 13 on the connecting plate 113; Combined with Figure 5The assembled module 3 shown includes a feeding module 31, a blanking module 32, and a blanking pressure 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 their axis lines are coaxially placed on the feeding frame 311. The feeding driver 312 is used to move the feeding frame 311 to place the roller 13 between a pair of connecting plates 113. At this time, the pivot 12 is axially outside one of the connecting plates 113 and is directly opposite to the through hole 114. The blanking module 32 is used to axially push the pivot 12 so that the pivot 12 passes through the roller 13 and a pair of through holes 114. The blanking pressure module 33 is used to squeeze the outer wall of the through hole 114 so that the pivot 12 is tightly fitted with the through hole 114.

[0057] The bending module 6, the bending module 6 is facing the bending station, combined with Figure 13 The bending module 6 shown includes a bending execution module 61 and a shrapnel 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 shrapnel 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 to move to a first preset height h1 in a direction perpendicular to the mounting plate 111. The pressure detection probe 621 detects the pressure N received 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 shrapnel body 11 to bend the shrapnel body 11, where S = a + f(k - N / h1), a is the standard displacement, f() is a preset correlation function, k is the standard elastic performance parameter, and a, k, and h1 are all preset constants greater than 0.

[0058] Based on the above device, its principle is as follows: The clamping seat 22 serves as a tooling for fixing the main body 11 of the elastic piece to define the attitude of the main body 11 of the elastic piece. The pivot 12 is exposed outside the clamping seat 22, and the material transfer driving device 21 is used to transfer the clamping seat 22 so that the main body 11 of the elastic piece moves to each working station. When moving to the assembly station, the assembly module 3 is activated, and the ejector 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 outside the axial direction of the connecting plates 113, and the connecting plates 113, the pivot 12, and the roller 13 are coaxial. By pushing the pivot 12 with the ejector module 32, the roller 13 penetrates into the roller 13 and a pair of through holes 114, and then the outer wall of the through hole 114 is squeezed by the pressing module 33 to fix the pivot 12 in the through hole 114. Thus, the installation of the pivot 12 and the roller 13 on the main body 11 of the elastic piece is realized. When moving to the bending station, the bending module 6 is activated. First, the bending punch 612 pushes the roller 13 to move to the first preset height in the direction parallel to the z-axis, and the pressure N received at this time is detected by the pressure detection probe 621, so as to calculate the elastic performance parameter N / h1 of the current main body 11 of the elastic piece. k is the standard elastic performance parameter, and f(k - N / h1) is the compensation stroke of 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 main body 11 of the elastic piece during the bending process. The bending punch 612 moves a preset distance S in the z-axis direction outside the bending position of the main body 11 of the elastic piece to bend the main body 11 of the elastic piece, and S = a + f(k - N / h1), where f(k - N / h1) compensates for the deviation of the elastic performance. Thus, the qualified rate of the product is ensured. It should be noted that the value of k is derived from the average value of N / h1 measured for the qualified products obtained when the bending punch 612 presses down the standard stroke a. After determining the value of k, a compensation stroke test is carried out. Take a group of main bodies 11 of the elastic piece as samples, measure the value of N / h1 of the samples, calculate the elastic performance difference k - N / h1, and classify the results in gradients. After the samples with different gradient elastic performance differences reach the preset quantity, the compensation strokes of the samples under each gradient are assigned in gradients to replace f(k - N / 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 obtained as the qualified assignment. Record the qualified assignments obtained under the samples of each elastic performance difference gradient, substitute them into the formula: qualified assignment = f(k - N / h1), and fit and solve to obtain the correlation function f(). In this embodiment, f(k - N / h1) = b*(k - N / h1), where b is a preset constant and b > 0. f() is a proportional function, and the proportional function is used for fitting and solving f() during the fitting and solving process.

[0059] In this embodiment, the material transfer driving device 21 includes a disc 211 and a disc driving device that is drivingly connected to the disc 211. The disc driving device is a motor or a cam divider. The disc driving device is used to drive the disc 211 to rotate. The clamping seat 22 is installed on the disc 211, and a group of workstations are circumferentially arrayed on the circumference of the disc 211. In other embodiments, the material transfer driving device 21 can be a linear movement module.

[0060] Combined with Figure 4 As shown, in this embodiment, 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 drivingly 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 in the clamping groove. Specifically, the clamping block driver 222 is a rotary clamping cylinder.

[0061] Combined with Figures 5 to 9 As shown in this embodiment, the assembly module 3 includes a positioning module 34. The positioning module 34 includes a mounting table 341 and a positioning driving device 342 that is drivingly connected to the mounting table 341. The positioning driving device 342 is used to drive the mounting table 341 to reciprocate in the vertical direction. The feeding module 31 and the ejecting module 32 are installed on the mounting table 341. A positioning block 35 is installed on the mounting table 341. The positioning block 35 is provided with a positioning groove 350 adapted to a pair of connecting plates 113. One 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 device, after the material transfer driving device 21 drives the clamping seat 22 to move to the assembly station, the positioning module 34 is started first. The positioning driving device 342 drives the mounting table 341 to move so that the connecting plate 113 enters the positioning groove 350 to ensure the accuracy of the positioning of the connecting plate 113 when the subsequent assembly actions are performed. And when the pressing module 33 performs the pressing operation, the positioning block 35 is used to support the connecting plate 113 to provide a reaction force. In this embodiment, the ejecting module 32 includes an ejecting driving cylinder 321 and a material positioning slide 322. The ejecting driving cylinder 321 is drivingly connected to the material positioning slide 322. The material positioning slide 322 is slidably installed on the mounting table 341. A ejecting pin 3221 is provided on one side of the material positioning slide 322 close to the positioning block 35. When the ejecting module 32 is started, the ejecting driving cylinder 321 drives the material positioning slide 322 to move until the ejecting pin 3221 pushes 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 driving cylinder 332. The pressing block 331 is arranged above the positioning block 35. The pressing driving cylinder 332 is drivingly connected to the pressing block 331. A pair of convex portions 3311 are provided at the bottom of the pressing block 331. When performing the pressing operation, the convex portions 3311 are pressed against the upper end of the outer wall of the through hole 114.

[0062] In this embodiment, combined with Figure 8 andFigure 9 As shown, the feeding rack 311 includes a pair of feeding plates 3113. The pair of feeding plates 3113 are respectively provided with a pivot groove 3111 and a roller groove 3112 corresponding to the pivot 12 and the roller 13. The axial ends of the pivot groove 3111 and the roller groove 3112 are open. It further includes a limit frame 36 installed on the installation table 341. The limit frame 36 includes a group of vertically arranged limit plates 361. The number of the limit plates 361 is 3 and they are arranged at intervals in the thickness direction. An adjacent pair of limit plates 361 form a feeding limit groove. During the feeding process, the feeding plate 3113 moves in the feeding limit groove. During the feeding process, the side surface of the limit plate 361, that is, the side wall of the feeding limit groove, is used to limit the axial movement of the pivot 12 and the roller 13. In this embodiment, before feeding, the pivot 12 and the roller 13 are axially inserted into the pivot groove 3111 and the roller groove 3112.

[0063] In this embodiment, the work station includes an inspection work station, and the inspection work station is arranged after the assembly work station. Combining Figures 10 to 12As shown, it further includes a roller rotation detection module 5. The roller rotation detection module 5 faces the detection station. The roller rotation detection module 5 includes a detection movement module 53, a driving rotor 51, a rotor driver 54, and a rotational speed detector 52. The driving rotor 51 and the rotor driver 54 are arranged on the moving component of the detection movement module 53. The detection movement module 53 is used to drive the driving rotor 51 to move until the driving rotor 51 abuts against the side surface of the roller 13. The axis lines of the driving rotor 51 and the roller 13 are parallel. The rotor driver 54 is in transmission connection with the driving rotor 51. The rotational speed detector 52 is used to detect 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 rotation of the roller 13 after installation is qualified. The principle is as follows: after the driving rotor 51 abuts against the side surface of the roller 13, the rotor driver 54 drives the driving rotor 51 to rotate at a preset rotational speed. The driving rotor 51 drives the roller 13 to rotate. The rotational speed detector 52 detects the rotational speed of the roller 13. If the roller 13 rotates synchronously with the driving rotor 51, the smoothness of the rotation of the roller 13 is qualified. If the rotation of the roller 13 lags behind the driving rotor 51, it indicates that the smoothness of the rotation of the roller 13 is unqualified. In this embodiment, the detection movement module 53 includes a transmission cylinder 531 and a moving frame 532. The transmission cylinder 531 is in transmission connection with the moving frame 532. The rotor driver 54 is installed on the moving frame 532. The driving rotor 51 is installed on the output shaft of the rotor driver 54. The rotational speed detector 52 is a rotary encoder. A transmission wheel 521 is installed on the input shaft of the rotational speed detector 52. The axis line of the transmission wheel 521 is parallel to the axis line of the driving rotor 51. An encoder frame 533 is installed on the moving frame 532. The encoder frame 533 is movably connected to the moving frame 532. In this embodiment, the moving frame 532 is hinged to the encoder frame 533. The rotational speed detector 52 is installed on the encoder frame 533. It further includes an elastic member 55. In this embodiment, the elastic member 55 is a tension spring. The elastic member 55 is connected between the encoder frame 533 and the moving frame 532;

[0064] In the reset state of the roller rotation detection module 5, under the action of the elastic member 55, the transmission wheel 521 abuts against the driving rotor 51,

[0065] When the roller rotation detection module 5 is working, the transmission cylinder 531 drives the moving frame 532 to move the roller 13 to be placed between the driving rotor 51 and the driving wheel 521. At this time, the side surfaces of the roller 13 respectively contact the driving rotor 51 and the driving wheel 521, and the driving wheel 521 is separated from the driving rotor 51. Based on the above device, the elastic member 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, and the transmission wheel 521 and the driving rotor 51 serve as the clamping heads 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 driving rotor 51. At this time, the transmission wheel 521 is separated from the driving rotor 51, and the driving rotor 51 rotates at a preset speed, driving the roller 13 to rotate, and then driving the transmission wheel 521 to rotate through the roller 13. The speed detector 52 collects the speed of the transmission wheel 521 to determine whether the roller 13 rotates synchronously with the driving rotor 51, so as to determine the smoothness of the rotation of the roller 13.

[0066] Specifically, the mounting plate 111 is provided with a mounting hole 110, and when in use, it is connected to the parking system by screwing through the mounting hole 110. In this embodiment, the clamp seat 22 is provided with a positioning column 213 corresponding to the mounting hole 110, and the positioning column 213 passes through the mounting hole 110 from bottom to top;

[0067] Combination Figures 13 to 15 As shown, the bending module 6 includes a locking module 63, and the locking module 63 includes a locking driver 631 and a locking movable seat 632. The locking driver 631 is transmission-connected with the locking movable seat 632, and the locking driver 631 is used to drive the locking movable seat 632 to move in the vertical direction. A locking column 6321 is provided at the lower end of the locking movable seat 632, and a sleeve hole adapted to the positioning column 213 is provided at the bottom of the locking column 6321; the bending module 6 also includes a mounting frame 64, and the bending driver 611 and the locking driver 631 are both linear drive cylinders. The bending driver 611 is mounted on the mounting frame 64, and the bending punch 612 is mounted on the moving component of the bending driver 611. The locking driver 631 and the locking movable seat 632 are arranged on both sides of the bending driver 611 in the horizontal direction. The cylinder of the locking driver 631 is rotatably connected to the mounting frame 64. The telescopic rod of the locking driver 631 is rotatably connected to the transmission frame 65. The transmission frame 65 is provided with a transmission slider (not shown) at one end away from the locking driver 631. The corresponding transmission slider is provided on the locking movable seat 632 with a horizontally extending slide 6320. The transmission slider is slidably arranged in the slide 6320. The mounting frame 64 is provided with an articulated seat 642. The articulated seat 642 is articulated with the transmission frame 65. The locking driver 631 and the locking movable seat 632 are on both sides of the articulated seat 642 in the horizontal direction. In this embodiment, the transmission slider is a roller (not shown) rotatably arranged on the transmission frame 65.

[0068] Based on the above device, the locking driver 631 drives the transmission frame 65 to achieve the longitudinal movement of the locking moving seat 632. When locking, the sleeve hole of the locking column 6321 penetrates into the positioning column 213 so that the locking column 6321 is pressed against the upper end of the mounting plate 111, realizing the simulation of the screw fixation of the mounting plate 111. In addition, since both the bending driver 611 and the locking driver 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 driver 611 and the locking driver 631 at equal intervals. Through the above device in this embodiment, the locking driver 631 and the locking moving seat 632 are respectively arranged on both sides of the bending driver 611, realizing the separate driving of two linear moving parts with too close distances. Specifically, a vertically arranged slide rail 643 and a pair of vertically arranged guide columns 641 are fixed on the mounting frame 64. The locking moving seat 632 is sleeved on the pair of guide columns 641; the bending punch 612 is slidably installed on the slide rail 643.

[0069] A working method of a spring assembly device for a parking system in this embodiment includes the following steps:

[0070] S1: Install the elastic sheet body 11 on the clamping seat 22, and the material transfer driving device 21 drives the clamping seat 22 to move to the positions of each working station;

[0071] S2: After the clamping seat 22 moves to the assembly station, it includes steps S21 - S23:

[0072] S21: The feeding module 31 sends the roller 13 between the connecting plates 113, and the pivot 12 is sent to the outside of the connecting plates 113. At this time, the roller 13, the pivot 12, and the through hole 114 are coaxial;

[0073] S22: The ejecting module 32 ejects the pivot 12 into the roller 13 and a pair of through holes 114;

[0074] S23: The pressing module 33 squeezes the outer wall of the through hole 114 until the pivot 12 is tightly fitted with the through hole 114;

[0075] S3: After the clamping seat 22 moves to the detection station, it includes steps S31 - S32:

[0076] S31: The transmission cylinder 531 drives the moving frame 532 to move until the roller 13 is placed between the driving rotor 51 and the transmission wheel 521. At this time, the sides of the roller 13 are respectively in contact with the driving rotor 51 and the transmission wheel 521, and the transmission wheel 521 is separated from the driving rotor 51;

[0077] S32: The rotor driver 54 drives the driving rotor 51 to rotate at a preset speed, and the rotation speed detector 52 detects whether the rotation speed of the transmission wheel 521 is less than the preset value. If it is less than the preset value, it is determined that the rotation smoothness of the roller 13 is unqualified, otherwise it is determined to be qualified;

[0078] S4: After the clamping seat 22 moves to the bending station, Figure 17 As shown, steps S41-S44 are included:

[0079] S41: The probe driver 622 drives the pressure detection probe 621 to push the roller 13 upward to a first preset height h1, and the pressure detected by the pressure detection probe 621 at this time is N;

[0080] S42: The bending driver 611 drives the bending punch 612 to move downward at the junction of the mounting plate 111 and the extension plate 112 by a preset distance S to bend the spring body 11, wherein 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;

[0081] 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 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; wherein, when the roller 13 is at the second preset height, it corresponds to the limit stroke of the parking system special spring 1 when in use, and when the roller 13 is at the second preset height, it corresponds to the installation state of the parking system special spring 1 when in use.

[0082] Step S43 is used to detect whether the elastic performance of the parking system special spring 1 after bending meets the standard. First, the roller 13 is pushed to the limit stroke when in use, that is, the second preset height, and then the elastic force generated when the roller 13 is in the installation state when in use, that is, the third preset height, is detected. This prevents the elastic force from being unqualified after the spring sheet is deformed to the limit stroke and then reset, thereby ensuring product quality.

[0083] The technical principles of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without creative work, and these methods will fall within the scope of protection of the present invention.

Claims

1. A parking system spring assembly device, characterized in that: include: A material shifting assembly (2), the material shifting assembly (2) comprising a material shifting drive device (21) and a clamping seat (22), the clamping seat (22) being used to fix a spring sheet body (11), the spring sheet body (11) comprising a mounting plate (111) and an extension plate (112), a pair of connecting plates (113) being provided at the front end of the extension plate (112), and a through hole (114) being provided on the pair of connecting plates (113); a forming limit surface (223) being provided below the clamping seat (22) corresponding to the bending position of the spring sheet body (11), the extension plate (112) extending out of the forming limit surface (223); the material shifting drive device (21) being used to drive the clamping seat (22) to move to a group of workstations in sequence, the workstations in sequence comprising an assembly workstation and a bending workstation; An assembly module (3), the assembly module (3) facing the assembly station, the assembly module (3) being used to assemble the pivot (12) and the roller (13) on the connecting plate (113); the assembly module (3) comprising a feeding module (31), a pushing module (32) and a pressing module (33), the feeding module (31) comprising a feeding frame (311) and a feeding driver (312), the pivot (12) and the roller (13) being axially spaced and coaxially arranged on the feeding frame (311); the feeding module (31) comprising a feeding frame (311) and a feeding driver (312), the pivot (12) and the roller (13) being axially spaced and coaxially arranged on the feeding frame (311); the feeding module (31) comprising a feeding frame (311) and a feeding driver (312), the pivot (12) and the roller (13) being coaxially arranged on the feeding frame (311) and the pushing module (31) The material driver (312) is used to move the material feeding frame (311) until the roller (13) is placed between a pair of connecting plates (113), at which time the pivot (12) is axially outside one of the connecting plates (113) and directly opposite the through hole (114); the material pushing 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 material pressing module (33) is used to press the outer wall of the through hole (114) until the pivot (12) and the through hole (114) are tightly matched; A bending module (6), the bending module (6) being directly opposite to the bending station, the bending module (6) comprising a bending execution module (61) and a spring performance detection module (62), the bending execution module (61) comprising a bending driver (611) and a bending punch (612), the spring performance detection module (62) comprising a pressure detection probe (621) and a probe driver (622), the probe driver (622) being used to drive the pressure detection probe (621) to push the roller (13) in a direction perpendicular to the installation position. The spring body (11) is moved in the direction of the mounting plate (111) to a first preset height h1, and the pressure detection probe (621) detects the pressure N applied 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), wherein S=a+f(kN / h1), a is a standard displacement, f() is a preset correlation function, k is a standard elastic performance parameter, and a, k, and h1 are all preset constants greater than 0.

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

3. The parking system spring assembly device according to claim 1, characterized in that: The material transfer drive device (21) comprises a disc (211) and a disc drive device drivingly connected to the disc (211), the disc drive device being used to drive the disc (211) to rotate, the clamping seat (22) being mounted on the disc (211), and a group of workstations being arranged in a circular array in the circumferential direction of the disc (211).

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

5. The parking system spring assembly device according to claim 1, characterized in that: The assembly module (3) comprises a positioning module (34), the positioning module (34) comprising a mounting platform (341) and a positioning drive device (342) drivingly connected to the mounting platform (341), the positioning drive device (342) being used to drive the mounting platform (341) to reciprocate in a vertical direction, the feeding module (31) and the ejecting module (32) being mounted on the mounting platform (341), a positioning block (35) being mounted on the mounting platform (341), the positioning block (35) being provided with positioning grooves (350) adapted to a pair of connecting plates (113), and a side of the connecting plate (113) away from a pressing position of the pressing module (33) being in contact with the bottom of the positioning groove (350).

6. A parking system spring assembly device according to claim 5, characterized in that: The feeding frame (311) comprises a pair of feeding plates (3113), the pair of feeding plates (3113) being provided with a pivot groove (3111) and a roller groove (3112) corresponding to the pivot (12) and the roller (13), respectively, the pivot groove (3111) and the roller groove (3112) being open at both ends of the axis, and further comprises a limiting frame (36) mounted on the mounting platform (341), the limiting frame (36) comprising a group of vertical limiting plates (361), the number of the limiting plates (361) being 3 and arranged at intervals in the thickness direction, the adjacent pair of limiting plates (361) forming a feeding limiting groove, and during the feeding process, the feeding plate (3113) moves in the feeding limiting groove.

7. The parking system spring assembly device according to claim 1, characterized in that: The workstation comprises a detection workstation, which is arranged after the assembly workstation, and further comprises a roller rotation detection module (5), the roller rotation detection module (5) being directly opposite to the detection workstation, the roller rotation detection module (5) comprising a detection moving module (53), a driving rotor (51), a rotor driver (54) and a rotation speed detector (52), the driving rotor (51) and the rotor driver (54) being arranged on a moving component of the detection moving module (53), the detection moving module (53) being used to drive the driving rotor (51) to move until the driving rotor (51) contacts the side of the roller (13), the driving rotor (51) being parallel to the axis center line of the roller (13), the rotor driver (54) being transmission-connected to the driving rotor (51), and the rotation speed detector (52) being used to detect the rotation speed of the roller (13).

8. The parking system spring assembly device according to claim 7, characterized in that: The detection moving module (53) comprises a transmission cylinder (531) and a moving frame (532), wherein the transmission cylinder (531) is transmission-connected to the moving frame (532), 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), the speed detector (52) is mounted on the encoder frame (533), and further comprises an elastic member (55), wherein the elastic member (55) is connected between the encoder frame (533) and the moving frame (532); When the roller rotation detection module (5) is in a reset state, under the action of the elastic member (55), the transmission wheel (521) contacts the driving rotor (51). When the roller rotation detection module (5) is working, the transmission cylinder (531) drives the moving frame (532) to move the roller (13) to be placed between the driving rotor (51) and the driving wheel (521). At this time, the side surface of the roller (13) respectively contacts the driving rotor (51) and the driving wheel (521), and the driving wheel (521) is separated from the driving rotor (51).

9. The parking system spring assembly device according to claim 1, characterized in that: The mounting plate (111) is provided with a mounting hole (110), and the clamp seat (22) is provided with a positioning column (213) corresponding to the mounting hole (110), and the positioning column (213) passes through the mounting hole (110) from bottom to top; The bending module (6) comprises a locking module (63), the locking module (63) comprising a locking driver (631) and a locking movable seat (632), the locking driver (631) being in transmission connection with the locking movable seat (632), the locking driver (631) being used to drive the locking movable seat (632) to move in a vertical direction, a locking column (6321) being provided at the lower end of the locking movable seat (632), and a sleeve hole adapted to the positioning column (213) being provided at the bottom of the locking column (6321); The bending module (6) further comprises a mounting frame (64), the bending drive (611) and the locking drive (631) are both linear drive cylinders, the bending drive (611) is mounted on the mounting frame (64), the bending punch (612) is mounted on a moving component of the bending drive (611), the locking drive (631) and the locking moving seat (632) are arranged on both sides of the bending drive (611) in a horizontal direction, the cylinder body of the locking drive (631) is rotatably connected to the mounting frame (64), and the locking drive (631) is arranged on the movable component of the bending drive (611). ) is rotatably connected to a transmission frame (65) on a telescopic rod, and a transmission slider is provided at one end of the transmission frame (65) away from the locking driver (631). A horizontally extending slide groove (6320) is provided on the locking movable seat (632) corresponding to the transmission slider, and the transmission slider is slidably arranged in the slide groove (6320). An articulated seat (642) is provided on the mounting frame (64), and the articulated seat (642) is hinged to the transmission frame (65). The locking driver (631) and the locking movable seat (632) are on both sides of the articulated seat (642) in the horizontal direction.

10. The working method of the parking system spring assembly device according to claim 8, characterized in that: The steps include: S1: The spring body (11) is mounted on the clamping seat (22), and the material transfer driving device (21) drives the clamping seat (22) to move to the position of each work station; S2: After the clamping seat (22) is moved to the assembly station, steps S21-S23 are included: S21: The feeding module (31) feeds the roller (13) between the connecting plates (113), and the pivot (12) to the outside of the connecting plates (113), at which time the roller (13), the pivot (12) and the through hole (114) are coaxial; S22: The ejection module (32) ejects the pivot (12) into the roller (13) and the pair of through holes (114); S23: the pressing die set (33) presses the outer wall of the through hole (114) until the pivot (12) and the through hole (114) are tightly fitted; S3: After the clamping seat (22) moves to the inspection station, steps S31-S32 are included: S31: The transmission cylinder (531) drives the moving frame (532) to move until the roller (13) is placed between the driving rotor (51) and the driving wheel (521). At this time, the side surfaces of the roller (13) respectively contact the driving rotor (51) and the driving wheel (521), and the driving wheel (521) is separated from the driving rotor (51); S32: The rotor driver (54) drives the driving rotor (51) to rotate at a preset rotation speed, and the rotation speed detector (52) detects whether the rotation speed of the transmission wheel (521) is less than a preset value. If the rotation speed is less than the preset value, it is determined that the rotation smoothness of the roller (13) is unqualified; otherwise, it is determined that the rotation smoothness is qualified; S4: After the clamping seat (22) moves to the bending station, steps S41-S44 are included S41: the probe driver (622) drives the pressure detection probe (621) to push the roller (13) upward to a first preset height h1, and the pressure detected by the pressure detection probe (621) 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), wherein 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 a second preset height h2. After the pressure detection probe (621) is reset downward, the probe driver (622) drives the pressure detection probe (621) to push the roller (13) upward to a 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. When the roller (13) is at the second preset height, it corresponds to the limit travel of the parking system dedicated spring (1) when in use. When the roller (13) is at the second preset height, it corresponds to the installation state of the parking system dedicated spring (1) when in use.

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