Parking system spring assembling equipment and working method thereof

Abstract

The invention relates to the technical field of automobile spring manufacturing, in particular to parking system spring assembling equipment and a working method thereof. Parking system spring assembling equipment comprises a material moving assembly, the material moving assembly comprises a material moving driving device and a clamping base, the clamping base is used for fixing an elastic piece body, a forming limiting face is arranged below the position, corresponding to the bending position of the elastic piece body, of the clamping base, and an extension plate extends out of the forming limiting face; the material moving driving device is used for driving the clamping base to sequentially move to a set of stations, and the stations sequentially comprise the assembling station and the bending station. The assembling module directly faces the assembling station, and the assembling module is used for assembling the pivot and the pin roller on the connecting plate; and the bending module comprises a bending execution module and an elastic piece performance detection module, automatic production of the parking system spring can be achieved, the production efficiency is improved, and the percent of pass of products can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of automobile spring manufacturing, and in particular to a parking system spring assembly device and a working method thereof. Background Art

[0002] Combination Figure 1 and Figure 2 As shown, the parking system-specific spring 1 includes a spring sheet body 11, which includes a mounting plate 111 and an extension plate 112. A folded angle is provided 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. A pair of connecting plates 113 are provided at both axial ends of the roller 13.

[0003] Combination Fig.17 As shown, the mounting plate 111 is fixed by screws when in use. Due to the angle, in the free state, the axis of the roller 13 is on the z-direction side 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 is limited on the z-direction side. 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.

[0004] Therefore, the elastic force of the roller 13 in the z direction depends on two aspects: first, in the free state, the distance between the axis line of the roller 13 and the mounting plate 111 in the z direction. Since the distance from the roller 13 to the end of the extension plate 112 close to 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 of the mounting plate 111 and the extension plate 112; second, the elastic performance of the spring body 11.

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

[0006] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a parking system spring assembly device, which can realize the automated production of the parking system spring, improve the production efficiency, and enhance the qualified rate of the product.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions: A parking system spring assembly device, comprising: The material moving assembly includes a material moving drive device and a clamping seat, the clamping seat is used to fix the spring sheet body, the spring sheet body includes a mounting plate and an extension plate, a pair of connecting plates are provided at the front end of the extension plate, and a pair of connecting plates are provided with through holes; the clamping seat is used to limit the posture of the spring sheet body, and a forming limit surface is provided below the clamping seat corresponding to the bending position of the spring sheet body, and the extension plate extends out of the forming limit surface; the material moving drive device is used to drive the clamping seat to move to a group of stations in sequence, and the stations include an assembly station and a bending station in sequence; The assembly module is opposite to the assembly station, and is used to assemble the pivot and the roller on the connecting plate; the assembly module includes a feeding module, a pushing module and a pressing module, and the feeding module includes a feeding frame and a feeding driver, and the pivot and the roller are axially spaced and coaxially placed on the feeding frame; the feeding driver is used to move the feeding frame until the roller is placed between a pair of connecting plates, and the pivot is axially outside one of the connecting plates and faces the through hole; the pushing module is used to axially push the pivot until 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 until the pivot is tightly matched with the through hole; Bending module, the bending module is opposite to the bending station. The bending module 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 push the roller to move to a first preset height h1 in a direction perpendicular to the mounting plate. The pressure detection probe detects the pressure N 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 spring body to bend the spring body, wherein 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.

[0008] Further, in a parking system spring assembly device in the present application, f(kN / h1)=b*(kN / h1), b is a preset constant, b>0. As a preferred solution of the present application, in the present application, f() is a direct proportional function.

[0009] Further, in the present application, a parking system spring assembly device, the station includes a detection station, the detection station is arranged after the assembly station, and also includes a roller rotation detection module, the roller rotation detection module is directly opposite to the detection station, the roller rotation detection module includes a detection moving module, a driving rotor, a rotor driver and a speed detector, the driving rotor and the rotor driver are arranged on the moving component of the detection moving module, the detection moving module is used to drive the driving rotor to move until the driving rotor contacts the side of the roller, the driving rotor is parallel to the axis of the roller, the rotor driver is connected to the driving rotor in a transmission manner, and the speed detector is used to detect the speed of the roller. As a preferred embodiment of the present application, based on the above device, the roller rotation detection module is used to detect whether the smoothness of the roller after installation is qualified. The principle is: after the driving rotor contacts the side of the roller, the rotor driver drives the driving rotor to rotate at a preset speed, the driving rotor drives the roller to rotate, the speed detector detects the speed of the roller, if the roller rotates synchronously with the driving rotor, the roller rotation smoothness is qualified, if the roller rotation lags behind the driving rotor, it means that the roller rotation smoothness is unqualified.

[0010] Furthermore, in a parking system spring assembly device in the present application, the detection moving module includes a transmission cylinder and a moving frame, the transmission cylinder is transmission-connected to the moving frame, the rotor driver is installed on the moving frame, and the driving rotor is installed on the output shaft of the rotor driver; the speed detector is a rotary encoder, a transmission wheel is installed on the input shaft of the speed detector, 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 speed detector is installed on the encoder frame, and also includes an elastic member, which 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 contacts the driving rotor, and when the roller rotation detection module is working, the transmission cylinder drives the moving frame to move until the roller is placed between the driving rotor and the transmission wheel, at which time the side surfaces of the roller contact 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, an elastic member connects the encoder frame and the moving frame so that 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 moving 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, and the driving rotor rotates at a preset speed, driving the roller to rotate, and then the transmission wheel is driven to rotate through the roller. The speed detector collects the speed of the transmission wheel to determine whether the roller rotates synchronously with the driving rotor, so as to determine the smoothness of the roller rotation.

[0011] A working method of a parking system spring assembly device comprises the following steps: S1: Install the spring body on the clamping seat, and the material transfer driving device drives the clamping seat to move to the position of each station; S2: After the clamping seat is moved to the assembly station, steps S21-S23 are included: S21: The feeding module sends the roller to between the connecting plates and the pivot to the outside of the connecting plates. At this time, the roller, the pivot and the perforation are coaxial; S22: The ejection module ejects the pivot into the roller and a pair of through holes; S23: The pressing die set squeezes the outer wall of the perforation until the pivot is tightly fitted with the perforation; S3: After the clamping seat moves to the inspection station, steps S31-S32 are included: S31: The transmission cylinder drives the moving frame to move until the roller is placed between the driving rotor and the driving wheel. At this time, the side surfaces of the roller respectively contact the driving rotor and the driving wheel, and the driving wheel is separated from the driving rotor; S32: The rotor driver drives the rotor to rotate at a preset speed, and the speed detector detects whether the speed of the transmission wheel is less than a preset value. If it is less than the preset value, it is determined that the smoothness of the roller rotation is unqualified, otherwise it is determined to be qualified; S4: After the clamping seat moves to the bending station, including steps S41-S44 S41: the probe driver drives the pressure detection probe to move the roller upward to a first preset height h1, and the pressure detected by the pressure detection probe at this time is N; 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 body, 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 first drives the pressure detection probe to push the roller upward to the second preset height h2. After the pressure detection probe is reset downward, the probe driver 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 range, the product is judged to be unqualified; wherein, when the roller is at the second preset height, it corresponds to the limit stroke of the special spring for the parking system when in use, and when the roller is at the second preset height, it corresponds to the installation state of the special spring for the parking system when in use.

[0012] Step S43 is used to detect whether the elastic performance of the parking system special spring after bending meets the standard. First, the roller is pushed to the limit stroke when in use, that is, the second preset height, and then the elastic force generated when the roller 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.

[0013] It can be seen from the above technical solution that the present invention has the following beneficial effects: The present invention provides a parking system spring assembly device, based on the above device, and its principle is: the clamp seat is used as a tool to fix the spring body to limit the posture of the spring body, the pivot is exposed on the clamp seat, and the material transfer drive device is used to transfer the clamp seat so that the spring body moves to each station; when it moves to the assembly station, the assembly module is started, and the material pusher module moves the pivot and the roller until the roller is placed between a pair of connecting plates, at this time the pivot is located on the axial outside of the connecting plate, the connecting plate, the pivot, and the roller are coaxial, the pivot is pushed by the material pusher module so that the roller penetrates into the roller and a pair of perforations, and then the outer wall of the perforation is squeezed by the material pressing module so that the pivot is fixed in the perforation. Thus, the pivot and the roller are installed on the spring body. When it moves to the bending station, the bending module is started, and the roller is first pushed to move to a first preset height in parallel to the z direction by the bending punch, and the pressure N at this time is detected by the pressure detection probe, so as to calculate the elastic performance parameter N / h1 of the current spring body. k is the standard elastic performance parameter, f (kN / 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 spring body 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 spring body. S = a + f (kN / h1), where f (kN / h1) compensates for the deviation of the elastic performance. This realizes the automated production of the spring, improves production efficiency, and ensures the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a special spring for a parking system in an embodiment of the present application; Figure 2 An exploded view of the components constituting the special spring for the parking system in the embodiment of the present application; Figure 3 A schematic diagram of a parking system spring assembly device in an embodiment of the present application; Figure 4 is a schematic diagram of a clamping seat in an embodiment of the present application; Figure 5 is a schematic diagram of an assembly module in an embodiment of the present application; Figure 6 It is a schematic diagram of a material pressing module in an embodiment of the present application; Figure 7 is a schematic diagram of a positioning module in an embodiment of the present application; Figure 8 It is a schematic diagram of a feeding module and a lifting module in an embodiment of the present application; Fig. 9 It is a schematic diagram of a feeding module in an embodiment of the present application; Fig.10 is a three-dimensional schematic diagram of a roller rotation detection module in an embodiment of the present application; Fig.11 is a plan view of a roller rotation detection module in an embodiment of the present application; Fig.12 is a schematic diagram of various movable components in the roller rotation detection module in an embodiment of the present application; Fig.13 is a schematic diagram of a bending module in an embodiment of the present application; Fig.14 It is a structural schematic diagram of a bending execution module, a spring performance detection module and a locking module in an embodiment of the present application; Fig.15 It is a schematic diagram of a bending execution module and a locking module in an embodiment of the present application; Fig.16 Schematic diagram of a spring performance detection module in an embodiment of the present application; Fig.17 This is a schematic diagram of various states during the bending process of a parking system spring assembly device in an embodiment of the present application.

[0015] In the figure: 1-parking system special spring; 11-spring body; 110-mounting hole; 111-mounting plate; 112-extension plate; 113-connecting plate; 114-perforation; 12-pivot; 13-roller; 2-material moving assembly; 21-material moving driving device; 211-disc; 213-positioning column; 22-clamp seat; 221-limiting clamp block; 222-clamp block driver; 223-bending limiting surface; 3-assembly module; 31-feeding module; 311-feeding rack; 3111-pivot slot; 3112-roller slot; 3113-feeding plate; 312-feeding driver; 32-ejection module; 321-ejection drive cylinder; 322-fixing slide; 3221-thrust pin; 33-pressing module; 331-pressing block; 3311-convex part; 332-pressing drive cylinder; 34-positioning module; 341-mounting table; 342-positioning drive device; 35-positioning block; 350-positioning slot; 36-limiting rack; 361-limiting plate; 5- roller rotation detection module; 51- driving 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 member; 6-bending module; 61-bending execution module; 611-bending driver; 612-bending punch; 62-spring performance detection module; 621-pressure detection probe; 622-probe driver; 63-locking module; 631-locking driver; 632-locking movable seat; 6320-slide groove; 6321-locking column; 64-mounting frame; 641-guide column; 642-articulated seat; 643-slide rail; 65-transmission frame. DETAILED DESCRIPTION Example

[0016] Combination Figure 3 A parking system spring assembly device shown includes: The material moving assembly 2 includes a material moving drive device 21 and Figure 4 The clamp seat 22 shown is used to fix the spring sheet body 11. The spring sheet 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. The pair of connecting plates 113 are provided with through holes 114. The clamp seat 22 is used to limit the posture of the spring sheet body 11. A forming limit surface 223 is provided below the clamp seat 22 corresponding to the bending position of the spring sheet body 11. The extension plate 112 extends out of the forming limit surface 223. The material transfer drive device 21 is used to drive the clamp seat 22 to move to a group of stations in sequence, and the stations include an assembly station and a bending station in sequence. Assembling module 3, assembling module 3 is opposite to the assembly station, and assembling module 3 is used to assemble the pivot 12 and the roller 13 on the connecting plate 113; Figure 5 The assembly module 3 shown includes a feeding module 31, a pushing 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 placed on the feeding frame 311. The feeding driver 312 is used to move the feeding frame 311 until the roller 13 is placed between a pair of connecting plates 113, and at this time, the pivot 12 is axially outside one of the connecting plates 113 and directly facing the through hole 114. The pushing module 32 is used to axially push the pivot 12 until the pivot 12 is inserted into the roller 13 and the pair of through holes 114. The pressing module 33 is used to squeeze the outer wall of the through hole 114 until the pivot 12 is tightly matched with the through hole 114. Bending module 6, bending module 6 is opposite to the bending station, combined with Fig.13 The bending module 6 shown in the figure 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. Fig.16As shown, 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 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 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 body 11 to bend the spring body 11, wherein 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.

[0017] Based on the above device, its principle is: the clamp seat 22 is used as a tooling to fix the spring sheet body 11 to limit the posture of the spring sheet body 11, the pivot 12 is exposed on the clamp seat 22, and the material transfer drive device 21 is used to transfer the clamp seat 22, so that the spring sheet body 11 moves to each workstation; when moving to the assembly station, the assembly module 3 is started, and the ejection 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 axially outside the connecting plate 113, and the connecting plate 113, the pivot 12, and the roller 13 are coaxial. The pivot 12 is pushed by the ejection module 32 so that 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 so that the pivot 12 is fixed in the through hole 114. Thus, the pivot 12 and the roller 13 are installed on the spring body 11; when it moves to the bending station, the bending module 6 is started, and the roller 13 is first pushed to move to the first preset height in parallel to the z direction by the bending punch 612, and the pressure N at this time is detected by the pressure detection probe 621, so as to calculate 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 of the elastic performance deviation. In the process of bending, the forming limit 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. Thus, the qualified rate of the product is guaranteed. 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 downward stroke a of the bending punch 612. After determining the k value, a compensation stroke test is performed, a group of spring body 11 is taken as samples, 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 samples with different gradient elastic performance differences reach the preset number, the compensation stroke of the samples under each gradient is assigned by gradient to replace f(kN / h1), then the bending stroke S of the extension plate 112 is S=a+assignment, and the assignment corresponding to the qualified product samples is retained after the bending operation, and the assignment corresponding to the qualified product samples is obtained as the qualified assignment, and the qualified assignment obtained under each elastic performance difference gradient sample is recorded, and substituted into the formula: qualified assignment=f(kN / h1), and the correlation function f() is obtained by fitting and solving. In this embodiment, f(kN / h1)=b*(kN / h1), b is a preset constant, and b>0. f() is a direct proportional function, and is used to fit and solve f() during fitting.

[0018] In this embodiment, the material transfer driving device 21 includes a disc 211 and a disc driving device 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 arranged in a circumferential direction of the disc 211. In other embodiments, the material transfer driving device 21 can be a linear moving module.

[0019] Combination Figure 4 As shown, in this embodiment, the clamp 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 clamp seat 22 is provided with a limiting clamp block 221 and a clamp block driver 222 that is transmission-connected to the limiting clamp block 221, and the clamp block driver 222 is used to drive the limiting clamp block 221 to move so as to press the mounting plate 111 into the clamping groove. Specifically, the clamp block driver 222 is a rotary clamping cylinder.

[0020] Combination Figures 5 to 9 In the embodiment shown, the assembly module 3 includes a positioning module 34, the positioning module 34 includes a mounting table 341 and a positioning drive device 342 that is transmission-connected to the mounting table 341, the positioning drive 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, and a positioning groove 350 is provided on the positioning block 35 that is adapted to a pair of connecting plates 113, and 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 device, after the material transfer drive device 21 drives the clamping seat 22 to move to the assembly station, the positioning module 34 is started first, and the positioning drive device 342 drives the mounting platform 341 to move to the connecting plate 113 to enter the positioning groove 350, so as to ensure the accuracy of the positioning of the connecting plate 113 when the subsequent assembly action is 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 ejection module 32 includes an ejection drive cylinder 321 and a fixed material slide 322, the ejection drive cylinder 321 is transmission-connected to the fixed material slide 322, the fixed material slide 322 is slidably mounted on the mounting platform 341, and a pin 3221 is provided on the side of the fixed material slide 322 near the positioning block 35. When the ejection module 32 is started, the ejection drive cylinder 321 drives the fixed material slide 322 to move to the pin 3221 to push the pivot 12 to penetrate 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 arranged above the positioning block 35. The pressing drive cylinder 332 is transmission-connected to the pressing block 331. A pair of protrusions 3311 are provided at the bottom of the pressing block 331. When pressing, the protrusions 3311 are pressed against the upper end of the outer wall of the through hole 114.

[0021] In this embodiment, combined with Figure 8 and Fig. 9 As shown, the feeding frame 311 includes a pair of feeding plates 3113, on which a 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 pivot groove 3111 and the roller groove 3112 are open at both ends of the axial direction, and also includes a limit frame 36 installed on the mounting platform 341, the limit frame 36 includes a group of vertical limit plates 361, the number of limit plates 361 is 3 and they are arranged at intervals in the thickness direction, and an adjacent pair of limit plates 361 forms a feeding limit groove, and during the feeding process, the feeding plate 3113 moves in the feeding limit groove. During the feeding process, the side 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 loaded into the pivot groove 3111 and the roller groove 3112.

[0022] In this embodiment, the workstation includes a detection workstation, which is arranged after the assembly workstation. Figures 10 to 12As shown, it also includes a roller rotation detection module 5, which is opposite to the detection station. The roller rotation detection module 5 includes a detection moving module 53, a driving rotor 51, a rotor driver 54 and a speed detector 52. The driving rotor 51 and the rotor driver 54 are arranged on the moving component of the detection moving module 53. The detection moving module 53 is 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 is parallel to the axis of the roller 13, the rotor driver 54 is connected to the driving rotor 51, and the speed detector 52 is used to detect the 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 after installation is qualified. The principle is as follows: after the driving rotor 51 and the side of the roller 13 collide, the rotor driver 54 drives the driving rotor 51 to rotate at a preset speed, the driving rotor 51 drives the roller 13 to rotate, and the speed detector 52 detects the 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 means that the smoothness of the rotation of the roller 13 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 transmission-connected with 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 with the moving frame 532, in this embodiment, the moving frame 532 is hinged with the encoder frame 533, the speed detector 52 is mounted on the encoder frame 533, and also includes an elastic member 55, in this embodiment, the elastic member 55 is a tension spring, and 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 the reset state, the transmission wheel 521 abuts against the driving rotor 51 under the action of the elastic member 55. 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.

[0023] 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; 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.

[0024] Based on the above device, the locking driver 631 drives the transmission frame 65 to realize the longitudinal movement of the locking movable seat 632. When locked, the sleeve hole of the locking column 6321 penetrates 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 the bending driver 611 and the locking driver 631 are both linear drive cylinders, and the spacing between the locking movable 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. In this embodiment, through the above device, the locking driver 631 and the locking movable 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 spacing. Specifically, a vertical slide rail 643 and a pair of vertical guide columns 641 are fixed on the mounting frame 64, and the locking movable seat 632 is sleeved on the pair of guide columns 641; the bending punch 612 is slidably installed on the slide rail 643.

[0025] A working method of a parking system spring assembly device in this embodiment includes the following steps: S1: Install the spring body 11 on the clamping seat 22, and the material moving driving device 21 drives the clamping seat 22 to move to the position of each station; S2: After the clamping seat 22 moves 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 this 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 is tightly fitted with the through hole 114; 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 speed, and the speed detector 52 detects whether the speed of the transmission wheel 521 is less than a preset value. If it is less than the preset value, it is determined that the smoothness of the rotation of the roller 13 is unqualified, otherwise it is determined to be qualified; S4: After the clamping seat 22 moves to the bending station, Fig.17 As shown, 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 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; 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.

[0026] 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.

[0027] 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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