A suspension spring cold pressing and setting device

Abstract

The application discloses a kind of suspension spring cold strong pressure vertical setting processing device, including portal frame, the strong pressure vertical setting processing structure is installed at the top of the portal frame, and two spring fixing structures are installed in the strong pressure vertical setting processing structure, the beneficial effects of the present application are that 1, the degree of automation is improved, the consistency of product is guaranteed, and the labor intensity of staff is greatly reduced;2, the strong pressure device is suitable for the processing of various outer diameter springs;3, the adjustment precision of the position and angle of the strong pressure device and the conveying belt is high;4, the compression height and compression times of spring are accurately controlled through program in the whole process, and the stability is very high;5, force value alarm device is installed after strong pressure station, and unqualified products are automatically removed by PLC controller;6, spring cold strong pressure vertical setting processing can effectively reduce the tensile stress of spring, reduce or eliminate the permanent deformation of spring and improve fatigue life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spring processing, in particular to a suspension spring cold strong pressure vertical setting device. BACKGROUND

[0002] The production of springs is to install spring wire on a spring winding machine to complete spring forming through a prepared spring winding program. The production process of spring winding is relatively mature. During the winding process, micro cracks are generated on the surface of the formed spring wire. These micro cracks eliminate part of the residual stress through heat treatment in a tempering furnace. The remaining stress needs to be eliminated through shot blasting or heat pressing and shot blasting again. After the heat-pressed spring is recognized, the required spring position and direction are ensured to facilitate the cooperation with the heat-pressed tooling to complete the heat pressing. The height of heat pressing of different springs is different. Through PLC control of corresponding parameters, the spring with high stress can effectively reduce the tensile stress of the spring, reduce or eliminate the permanent deformation of the spring and improve the fatigue life. The heat-pressed spring is then shot blasted to repair the micro cracks on the surface of the spring. The spring after the shot blasting is finished is subjected to three times of cold strong pressure vertical setting treatment to lock the use height stability of the spring, prevent the length attenuation of the spring during use, effectively reduce the tensile stress of the spring, reduce or eliminate the permanent deformation of the spring and improve the fatigue life. In view of this, the present application is generated through in-depth research on the above problems. SUMMARY

[0003] The purpose of the present application is to solve the above problems. A suspension spring cold strong pressure vertical setting device is designed to solve the problems of the prior art.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows: a suspension spring cold strong pressure vertical setting device, comprising a portal frame, a strong pressure vertical setting structure is installed on the top of the portal frame, and two spring fixing structures are installed inside the strong pressure vertical setting structure.

[0005] The strong pressure vertical setting structure comprises a strong pressure base, a first quick connector, a first strong pressure tooling, a first servo motor, a first air cylinder, a gripper, a plurality of springs, a conveyor belt, a supporting plate, a second air cylinder, a second quick connector, a second strong pressure tooling and a second servo motor.

[0006] The strong pressure base is installed on the top of the gantry, the first quick structure is installed on one end of the strong pressure base, the first strong pressure tool is installed on one end of the first quick joint, the first servo motor is installed on the upper side of the gantry, the first air cylinder is installed on the upper side of the gantry, the gripper is installed on the bottom of the output end of the first air cylinder, the conveying belt penetrates through the gantry, the supporting plate is installed on the top of the conveying belt, a plurality of springs are placed on the top of the tray, the second air cylinder is installed on the top of the gantry, the second quick joint is installed on the output end of the second air cylinder, the second strong pressure tool is installed on one side of the second quick joint, and the second servo motor is installed on the top of the gantry.

[0007] The first servo motor is connected with the first air cylinder, and the second air cylinder is connected with the second servo motor.

[0008] The gantry is provided with a PLC controller on one side, and the PLC controller is electrically connected with the first servo motor and the second servo motor.

[0009] The first pressure tool and the second pressure tool are located on the same horizontal plane.

[0010] Two spring fixing structures, one of which comprises a driving motor, a driving gear, a driven gear ring, a connecting ring, a plurality of arc-shaped grooves, a plurality of sliding blocks and a plurality of sliding rods;

[0011] The driving motor is installed on one end of the second strong pressure tool, the driving gear is connected with the driving end of the driving motor, the connecting ring is installed on one end of the second strong pressure tool, the driven gear ring is rotationally connected with the front end of the connecting ring, a plurality of arc-shaped grooves are formed in the front end of the driven gear ring, the front ends of a plurality of sliding blocks are inserted into a plurality of arc-shaped grooves, a plurality of slots are formed in the connecting ring, a plurality of sliding rods are slidably connected with the slots, and the rear ends of a plurality of sliding blocks are fixedly connected with the top of a plurality of sliding rods.

[0012] An opening is arranged in the middle part of the connecting ring, a fixed block is arranged on the front end of the second pressure tool, the fixed block is located in the middle part of the opening, and the fixed block is made of rubber.

[0013] A plurality of clamping blocks are arranged on the fixed block, and the positions of a plurality of clamping blocks correspond to the positions of a plurality of sliding rods.

[0014] The driving gear and the driven gear ring are engaged with each other.

[0015] A plurality of pressure sensors are arranged on the front end of the second strong pressure tool, a force value alarm device is arranged on the rear end of the second strong pressure tool, and the force value alarm device is electrically connected with the PLC controller.

[0016] The gantry bottom is provided with several supporting feet.

[0017] The suspension spring cold strong pressure vertical setting treatment device has the beneficial effects that:

[0018] 1. The automation degree is improved, the product consistency is ensured, and the labor intensity of employees is greatly reduced;

[0019] 2. The strong pressure device is suitable for processing various outer diameter springs;

[0020] 3. The strong pressure device has high adjustment precision of position and angle of the conveying belt;

[0021] 4. The compression height and compression times of the spring are accurately controlled through a program in the whole process, and the stability is very high;

[0022] 5. A force value alarm device is installed after the strong pressure station, and unqualified products are automatically removed through a PLC controller;

[0023] 6. The spring cold strong pressure vertical setting treatment can effectively reduce the tensile stress of the spring, reduce or eliminate the permanent deformation of the spring and improve the fatigue life. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the suspension spring cold strong pressure vertical setting treatment device.

[0025] Figure 2 It is a side view structural schematic diagram of the suspension spring cold strong pressure vertical setting treatment device.

[0026] Figure 3 It is a top view structural schematic diagram of the suspension spring cold strong pressure vertical setting treatment device.

[0027] Figure 4 It is a local front view structural schematic diagram of the suspension spring cold strong pressure vertical setting treatment device.

[0028] Figure 5 It is a local side view structural schematic diagram of the suspension spring cold strong pressure vertical setting treatment device.

[0029] In the figure: 1, gantry, 2, strong compression base, 3, first quick connector, 4, first strong compression tool, 5, first servo motor, 6, first cylinder, 7, grab hand, 8, spring, 9, conveying belt, 10, supporting plate, 11, second cylinder, 12, second quick connector, 13, second strong compression tool, 14, second servo motor, 15, PLC controller, 16, driving motor, 17, driving gear, 18, driven gear, 19, connecting ring, 20, arc-shaped groove, 21, sliding block, 22, sliding rod, 23, fixed block, 24, clamping block, 25, pressure sensor, 26, force value alarm device, 27, supporting leg. DETAILED DESCRIPTION

[0030] The application will be described in detail below with reference to the drawings, as shown in Figures 1-5 .

[0031] By the person skilled in the art, all electrical components in the case are connected to their adapted power supply through wires, and appropriate controllers should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should be completed according to the working order of each electrical component in the working principle described below. The detailed connection means is a well-known technology in the art, and the working principle and process are mainly introduced below, and the electrical control is not described.

[0032] Embodiment: According to the description attached Figures 1-5 It can be known that a suspension spring 8 cold strong compression vertical setting treatment device comprises a gantry 1, a strong compression vertical setting treatment structure is installed on the top of the gantry 1, and two spring 8 fixing structures are installed inside the strong compression vertical setting treatment structure;

[0033] The strong compression vertical setting treatment structure is composed of a strong compression base 2, a first quick connector 3, a first strong compression tool 4, a first servo motor 5, a first cylinder 6, a grab hand 7, a plurality of springs 8, a conveying belt 9, a supporting plate 10, a second cylinder 11, a second quick connector 12, a second strong compression tool 13, and a second servo motor 14. Their connection relationship and positional relationship are as follows:

[0034] The strong compression base 2 is installed on the top of the gantry 1, the first quick structure is installed on one end of the strong compression base 2, the first strong compression tool 4 is installed on one end of the first quick connector 3, the first servo motor 5 is installed on the upper side of the gantry 1, the first cylinder 6 is installed on the upper side of the gantry 1, the grab hand 7 is installed on the bottom of the output end of the first cylinder 6, the conveying belt 9 penetrates through the gantry 1, the supporting plate 10 is installed on the top of the conveying belt 9, the plurality of springs 8 are placed on the top of the supporting plate, the second cylinder 11 is installed on the top of the gantry 1, the second quick connector 12 is installed on the output end of the second cylinder 11, the second strong compression tool 13 is installed on one side of the second quick connector 12, and the second servo motor 14 is installed on the top of the gantry 1;

[0035] It needs to be explained that the spring 8 after the end of the shot blasting is placed on the supporting plate 10, the supporting plate 10 is fixedly connected to the conveying belt 9 through the bolt, the conveying belt 9 conveys the spring 8 on the supporting plate 10 to the position directly below the gripper 7, a part of the conveying belt 9 is installed in the middle of the device, the conveying belt 9 is controlled to do the circular rotating motion through the PLC controller 15 program control, wherein the gripper 7 is fixedly connected to the first air cylinder 6 through the bolt, the first air cylinder 6 is connected to the first servo motor 5, the first servo motor 5 controls the extension and retraction state of the first air cylinder 6, the PLC controller 15 controls the clamping and loosening state of the first servo motor 5 and the gripper 7 through the program control, in the use process, after the spring 8 is conveyed to the position below the gripper 7 through the PLC controller 15 control of the conveying belt 9, the first servo motor 5 is controlled to send the command to the first air cylinder 6 to extend and the gripper 7 to clamp, after the spring 8 is successfully grabbed, the first servo motor 5 is controlled to send the command to the first air cylinder 6 to retract and place one end of the spring 8 on the first strong pressure tooling 4, then the second servo motor 14 is controlled to send the command to the second air cylinder 11 to operate, so that the second strong pressure tooling 13 extends and fixes the other end of the spring 8, cooperating with the first strong pressure tooling 4, the two ends of the spring 8 can be fixed, at this time, the gripper 7 is loosened by the PLC controller 15 control of the spring 8 strong pressure standing height and strong pressure times, after the strong pressure is finished, the gripper 7 grabs the spring 8 and places it on the supporting plate 10, the gripper 7 is retreated to the original position by the PLC instruction, at the same time, the first air cylinder 6 and the second air cylinder 11 are in the retracted state, waiting for the program instruction of the next group of springs 8, in the case, the first strong pressure tooling 4 and the second strong pressure tooling 13 are connected to the strong pressure base 2 and the gantry 1 through the first quick connector 3 and the second quick connector 12 respectively, wherein the second strong pressure tooling 13 and the second quick connector 12 are movable ends, the second strong pressure tooling 13 and the second quick connector 12 are controlled to do the repeated extension and retraction action through the second servo motor 14, and the several electric devices in the technical solution are connected to the PLC through the internal circuit of the gantry 1.

[0036] Two spring 8 fixing structures, one of which is composed of a driving motor 16, a driving gear 17, a driven gear 18, a connecting ring 19, a plurality of arc-shaped grooves 20, a plurality of sliding blocks 21 and a plurality of sliding rods 22, and the connection relationship and position relationship are as follows:

[0037] The driving motor 16 is installed at one end of the second strong pressing tool 13, the driving gear 17 is connected with the driving end of the driving motor 16, the connecting ring 19 is installed at one end of the second strong pressing tool 13, the driven gear ring 18 is rotationally connected with the front end of the connecting ring 19, a plurality of arc-shaped grooves 20 are arranged at the front end of the driven gear ring 18, a plurality of sliding blocks 21 are inserted into the plurality of arc-shaped grooves 20, a plurality of slots are arranged in the connecting ring 19, a plurality of sliding rods 22 are slidably connected with the plurality of slots, and the rear ends of the plurality of sliding blocks 21 are fixedly connected with the top portions of the plurality of sliding rods 22;

[0038] In the specific implementation process, after the gripper 7 picks up the spring 8 from the top of the tray, the second servo motor 14 operates, the spring 8 can be compressed through the cooperation of the second quick connector 12 and the second strong pressing tool 13 with the first strong pressing tool 4 and the first quick connector 3, at this time, one end of the spring 8 is located between the connecting rings 19, and the other end of the spring 8 is sleeved outside the fixed blocks 23, and at the same time of compression, the driving motor 16 operates, the driven gear ring 18 is driven to rotate through the driving gear 17, at the same time of driving the driven gear ring 18, the plurality of arc-shaped grooves 20 rotate, thereby the plurality of sliding blocks 21 slide in the plurality of arc-shaped grooves 20, so that the plurality of sliding rods 22 slide in the plurality of slots, at this time, one end of the plurality of sliding rods 22 cooperates with the fixed blocks 23 and the plurality of clamping blocks 24 arranged on the fixed blocks 23, so as to clamp one end of the spring 8, thereby preventing the spring 8 from falling off due to excessive compression force during compression of the spring 8, and the second strong pressing tool 13 is provided with a plurality of pressure sensors 25 at the front end, and a force value alarm device 26 is installed at the rear end of the second strong pressing tool 13, the plurality of pressure sensors 25 and the force value alarm device 26 cooperate with the PLC controller 15, so as to automatically remove the unqualified products through the gripper 7.

[0039] The above technical solution only embodies the preferred technical solution of the present application, and some changes made by the person skilled in the art to some parts of the present application also embody the principle of the present application and are within the protection scope of the present application.

Claims

1. A suspension spring cold coining and setting apparatus comprising a gantry, characterized in that, The gantry top is provided with a strong pressure vertical positioning treatment structure, and two spring fixing structures are arranged in the strong pressure vertical positioning treatment structure; The strong pressure vertical positioning treatment structure comprises a strong pressure base, a first quick connector, a first strong pressure tool, a first servo motor, a first air cylinder, a gripper, a plurality of springs, a conveying belt, a supporting plate, a second air cylinder, a second quick connector, a second strong pressure tool and a second servo motor; The strong pressure base is arranged on the gantry top, the first quick connector is arranged on one end of the strong pressure base, the first strong pressure tool is arranged on one end of the first quick connector, the first servo motor is arranged on the upper side of the gantry, the first air cylinder is arranged on the upper side of the gantry, the gripper is arranged on the bottom of the output end of the first air cylinder, the conveying belt penetrates through the gantry, the supporting plate is arranged on the top of the conveying belt, the plurality of springs are arranged on the top of the supporting plate, the second air cylinder is arranged on the top of the gantry, the second quick connector is arranged on the output end of the second air cylinder, the second strong pressure tool is arranged on one side of the second quick connector, and the second servo motor is arranged on the top of the gantry; The first servo motor is connected with the first air cylinder, and the second air cylinder is connected with the second servo motor; A PLC controller is arranged on one side of the gantry, and the PLC controller is electrically connected with the first servo motor and the second servo motor respectively; The first strong pressure tool and the second strong pressure tool are located on the same horizontal plane; One of the two spring fixing structures comprises a driving motor, a driving gear, a driven gear ring, a connecting ring, a plurality of arc-shaped grooves, a plurality of sliding blocks and a plurality of sliding rods; The driving motor is arranged on one end of the second strong pressure tool, the driving gear is connected with the driving end of the driving motor, the connecting ring is arranged on one end of the second strong pressure tool, the driven gear ring is rotationally connected with the front end of the connecting ring, the plurality of arc-shaped grooves are arranged on the front end of the driven gear ring, the front ends of the plurality of sliding blocks are inserted into the plurality of arc-shaped grooves, the connecting ring is internally provided with a plurality of slots, the plurality of sliding rods are slidably connected with the plurality of slots respectively, and the rear ends of the plurality of sliding blocks are fixedly connected with the top of the plurality of sliding rods respectively; An opening is arranged in the middle part of the connecting ring, a fixing block is arranged on the front end of the second strong pressure tool, the fixing block is located in the middle part of the opening, and the fixing block is made of rubber material; A plurality of clamping blocks are arranged on the fixing block, the positions of the plurality of clamping blocks correspond to the positions of the plurality of sliding rods respectively, and when the plurality of sliding rods slide in the slots, one end of the plurality of sliding rods cooperates with the fixing block and the plurality of clamping blocks arranged on the fixing block; The driving gear and the driven gear ring are meshed with each other; A plurality of pressure sensors are arranged on the front end of the second strong pressure tool, a force value alarm device is arranged on the rear end of the second strong pressure tool, and the force value alarm device is electrically connected with the PLC controller; A plurality of supporting feet are arranged on the bottom of the gantry.

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