A shot peening device for leaf spring production

Abstract

The present invention relates to the field of shot peening technology for leaf springs, specifically a shot peening device for leaf spring production, including a base and a fence fixed around the upper end surface of the base, a leaf spring processing cabinet is arranged on the base, a second shot peening machine distributed and fixed on the leaf spring processing cabinet, and a first shot peening machine distributed on the right side of the leaf spring processing cabinet and fixed to the base, the leaf spring processing cabinet is designed in a cylindrical structure, and the front and rear ends are designed in an open shape, and the front and rear ends of the leaf spring processing cabinet are bolted and fixed with sealing door panels, and the front sealing door panel is symmetrically provided with material ports. By designing the first shot peening machine, the second shot peening machine, and the first spray gun and the second spray gun used in conjunction with them, the first spray gun and the second spray gun are distributed on the inner and outer sides of the fixed sleeve used for rotating and transmitting the leaf spring to be processed, so as to realize the shot peening strengthening operation of the concave and convex surfaces of the leaf spring to be processed, and the shot peening strengthening of the two sides does not interfere with each other, and there is no mutual collision damage between the shot materials.

Description

Technical Field

[0001] The invention relates to the technical field of shot peening strengthening of leaf springs, and in particular to a shot peening strengthening device for leaf spring production. Background Art

[0002] Leaf springs (leaf springs for short) are important elastic components of automobile suspension. They bear and transmit the vertical force between the frame and the axle, various forces other than the vertical force and the torque formed by them, mitigate the impact of the road on the vehicle body, and ensure the smoothness of the vehicle's driving and handling stability.

[0003] During the production process of leaf springs, the leaf springs need to be shot peened by a shot peening machine, and shot peening utilizes the cold work hardening characteristics of metal materials. When a large number of high-speed projectiles hit the surface of the leaf spring, a certain depth of plastic deformation will occur in the surface layer, forming residual compressive stress. This residual compressive stress can offset part of the tensile stress that the leaf spring bears during operation, thereby improving the fatigue strength of the leaf spring; however, traditional leaf springs only perform shot peening on the concave surface of the leaf spring.

[0004] To this end, the invention with application number 201910748127.4 specifically discloses a shot peening strengthening device and method for significantly improving the fatigue life of a transverse leaf spring, including a spray chamber and a steel shot hopper. A conveying device is provided throughout the interior of the spray chamber, and a transverse leaf spring is placed on the conveying device. The conveying device rotates to complete the transmission of the transverse leaf spring. A number of nozzles are provided on the top of the spray chamber, and the nozzles are connected to a steel shot hopper. Steel shots are placed inside the steel shot hopper. The steel shots inside the steel shot hopper enter the nozzles and are ejected from the nozzles into the transverse leaf springs inside the spray chamber for shot peening. The steel shot hopper is connected to a steel shot elevator, and the steel shot elevator transports the steel shots into the steel shot hopper, avoiding manual lifting and loading, reducing workload, and improving work efficiency. Advantages of the present invention: simple structure, long product life, strong applicability, small workload, high work efficiency, and easy promotion and implementation.

[0005] The device places the convex or concave surface of the transverse leaf spring (divided into two steps) on the surface of the conveyor chain plate, enters the shot peening machine, and controls the shot peening machine to achieve double-sided shot peening of the transverse leaf spring. However, the device cannot achieve shot peening of both the concave and convex surfaces of the leaf spring at the same time. In specific operation, after the shot peening of the convex surface of the leaf spring is completed, it is necessary to turn the leaf spring over again, with the concave surface facing up, and convey it to the shot peening machine through the conveying device, corresponding to the shot peening conveying port inside the shot peening machine, to achieve shot peening of the concave surface of the leaf spring. This working method greatly reduces the shot peening processing and strengthening efficiency of the leaf spring, and the secondary loading and unloading method of the leaf spring also increases the labor intensity.

[0006] To this end, a shot peening strengthening device for leaf spring production is proposed. Summary of the invention

[0007] The object of the present invention is to provide a shot peening strengthening device for leaf spring production. By designing a first shot peening machine, a second shot peening machine and a first spray gun and a second spray gun used in conjunction with the same, the first spray gun and the second spray gun are distributed on the inner and outer sides of a fixed sleeve used for rotating and transmitting the leaf spring to be processed, so as to realize shot peening strengthening operations on the concave and convex surfaces of the leaf spring to be processed, and the shot peening strengthening on the two sides does not interfere with each other, and there is no mutual collision damage between the shot materials, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shot peening strengthening device for leaf spring production, comprising a base and a fence fixed around the upper end surface of the base, a leaf spring processing cabinet, a second shot peening machine distributed and fixed on the leaf spring processing cabinet, and a first shot peening machine distributed on the right side of the leaf spring processing cabinet and fixed to the base, the leaf spring processing cabinet is designed in a cylindrical structure, and the front and rear ends are designed in an open shape, the front and rear ends of the leaf spring processing cabinet are bolted and fixed with sealing door panels, the front sealing door panel is symmetrically provided with material ports, the material ports are connected with the interior of the leaf spring processing cabinet, the interior of the leaf spring processing cabinet is rotatably connected with a fixed sleeve, and the front side of the fixed sleeve is designed in an open shape, a motor is fixed on the rear sealing door panel, and the motor is drivingly connected with the fixed sleeve, and at least six groups of clamping members are distributed in an annular manner at equal distances on the outer side of the fixed sleeve;

[0009] A second spray gun is arranged between the leaf spring processing cabinet and the fixed sleeve, and the second spray gun is designed with an inclination angle corresponding to the second shot peening machine, and the second spray gun is connected to the second shot peening machine through a pipeline;

[0010] A fixing plate is arranged in the fixing sleeve, and the front end of the fixing plate is fixed to the front sealing door plate, a first spray gun is fixed on the fixing plate, and the first spray gun is designed at an inclined angle, one end of the first spray gun is connected to and fixed with a conveying pipe, and the other end of the conveying pipe passes through the leaf spring processing cabinet and is connected with the first shot peening machine.

[0011] Preferably, a supporting plate is fixed to the outer lower side of the leaf spring processing cabinet, and a supporting seat is symmetrically fixed to the bottom of the supporting plate, the bottom of the supporting seat is fixed to the base, a shot box is arranged between the two supporting seats, and the top of the shot box is open, and a feeding groove is opened at a position corresponding to the opening of the upper end of the shot box on the surface of the supporting plate, and the feeding groove extends into the leaf spring processing cabinet, and a filter plate is screwed to the feeding groove on the lower side of the leaf spring processing cabinet.

[0012] Preferably, the clamping member includes a clamping groove opened on the front side of the fixed sleeve, clamping plates are symmetrically arranged on both sides of the interior of the clamping groove, guide columns are symmetrically fixed to the adjacent ends of the clamping plate and the clamping groove, and guide holes are opened on the inner wall of the clamping groove corresponding to the guide columns, and the guide columns are movably connected in the guide holes and cannot be detached.

[0013] Preferably, a spring is arranged between the guide column and the guide hole, and the front side of the clamping plate is designed with an inclination angle. Among the two material openings on the front sealing door panel, the upper material opening is the feed inlet and the lower material opening is the discharge outlet. Rubber shielding sheets are symmetrically fixed in the two material openings, and the adjacent ends of the two rubber shielding sheets are free movable ends.

[0014] Preferably, a transmission shaft is fixed to the middle part of the rear end of the fixed sleeve, and the transmission shaft is fixed to the motor output shaft by connecting flange screws, a slide rail with an annular structure is fixed to the edge of the rear end surface of the fixed sleeve, and the fixed sleeve is movably connected to the rear sealing door panel through the slide rail.

[0015] Preferably, a cleaning roller 1 and a cleaning roller 2 are respectively provided inside the leaf spring processing cabinet, and cleaning roller 2 and cleaning roller 1 are respectively distributed on the inner and outer sides of the fixed sleeve, and connecting shafts are fixed at both ends of cleaning roller 1 and cleaning roller 2, and the front ends of cleaning roller 1 and cleaning roller 2 are rotatably connected to the front sealing door panel through the connecting shaft, and gear 2 is fixed on the outside of the rear connecting shaft of cleaning roller 1 and cleaning roller 2, and an outer gear ring and an inner gear ring are respectively fixed on the outer and inner sides of the fixed sleeve corresponding to gear 2, and the inner gear ring is meshed with the outer gear ring and gear 2.

[0016] Preferably, a loading tray is provided in front of the leaf spring processing cabinet, and a rotating loading piece is provided on the lower side of the loading tray. The rear end surface of the loading tray and the positions corresponding to the two material ports are fixedly connected with limiting clamps, and the limiting clamps are designed as two groups with arc-shaped structures.

[0017] Preferably, limiting end plates are provided at both ends between the two limiting clamps, a bolt is fixed at one end of the limiting end plate, threaded holes are provided at equal distances between the two limiting clamps, and the threaded holes are threadedly connected to the bolts.

[0018] Preferably, an electromagnet with an arc-shaped structure is embedded in the interior of the loading tray, and the position of the electromagnet corresponds to the position between the two limit clamps.

[0019] Preferably, the rotating loading part includes a guide rail fixedly connected to the base, and a movable groove 1 and a movable groove 2 are respectively opened in the guide rail, wherein the movable groove 1 is located at the lower side of the movable groove 2, a slider is slidably connected in the movable groove 2, and a gear 1 is rotatably connected in the movable groove 1, a rack is fixed on the inner wall of the movable groove 1, and the gear 1 is meshingly connected to the rack, a connecting rod is fixed on the upper end face of the gear 1, and the top of the connecting rod passes through the slider and is fixed to the loading plate, the connecting rod is rotatably connected to the slider, the length of the rack is half of the length of the movable groove 1, and one end of the guide rail is fixedly connected to a hydraulic cylinder fixed to the slider.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present application designs a first shot peening machine, a second shot peening machine and a first spray gun and a second spray gun used in conjunction therewith. The first spray gun and the second spray gun are distributed on both sides of the fixed sleeve used for rotating and transmitting the leaf spring to be processed, so as to realize the shot peening strengthening operation of the concave surface and the convex surface of the leaf spring to be processed, and the shot peening strengthening of the two surfaces does not interfere with each other, and there is no collision damage between the shot materials;

[0022] 2. The present application can automatically load and unload leaf springs by using a loading plate and a rotating loading piece in conjunction with a leaf spring processing box and a leaf spring shot peening strengthening assembly located in the leaf spring processing box, and the loading and unloading work is completed synchronously, replacing the manual loading and unloading method, which not only reduces the labor intensity of manual labor, but also improves the working efficiency of the equipment;

[0023] 3. This application also further realizes the cleaning of the leaf spring surface after shot peening based on the double-sided shot peening structure, removes the metal dust caused by shot peening, and optimizes the subsequent leaf spring painting process;

[0024] 4. The present application can also centrally recycle the shot materials in double-sided shot peening, thereby improving the recycling of shot materials and reducing the impact of shot splashing on the surrounding working environment and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is the overall structural view of the present invention;

[0027] Figure 2 It is a top view of the overall structure of the present invention;

[0028] Figure 3 It is a cross-sectional view of the leaf spring processing cabinet and the support base of the present invention;

[0029] Figure 4 It is a top cross-sectional view of the leaf spring processing cabinet and the fixing sleeve of the present invention;

[0030] Figure 5 An exploded view of the fixing sleeve and the clamping member of the present invention;

[0031] Figure 6 It is a schematic diagram of the combination of the fixed sleeve and the slide rail of the present invention;

[0032] Figure 7It is a structural view of the cleaning roller 1, the fixed sleeve and the cleaning roller 2 of the present invention;

[0033] Figure 8 A structural view of the clamping member of the present invention;

[0034] Fig. 9 An exploded view of the loading plate and the rotating loading member of the present invention;

[0035] Fig.10 For the present invention Fig. 9 Enlarged view of the middle Z;

[0036] Fig.11 It is an exploded view of the loading tray, the limiting clamping plate and the limiting end plate of the present invention.

[0037] Description of reference numerals:

[0038] 1. Base; 11. Enclosure;

[0039] 2. First shot blasting machine; 21. Delivery pipeline; 22. First spray gun; 23. Fixed plate;

[0040] 3. Second shot peening machine; 31. Second spray gun;

[0041] 4. Leaf spring processing cabinet; 41. Sealing door panel; 42. Material opening; 421. Rubber shielding sheet; 43. Support plate; 44. Support seat; 45. Shot box; 46. Material discharge slot; 47. Filter plate;

[0042] 5. Fixed sleeve; 51. Clamping member; 51a. Clamping groove; 51b. Clamping plate; 51c. Guide column; 51d. Guide hole; 51e. Spring;

[0043] 52. inner gear ring; 53. slide rail; 54. transmission shaft; 55. outer gear ring;

[0044] 6. Rotating feeding part; 61. Hydraulic cylinder; 62. Guide rail; 63. Movable slot 1; 64. Movable slot 2; 65. Slider; 66. Gear 1; 67. Rack;

[0045] 7. Loading plate; 71. Limiting clamp; 72. Limiting end plate; 73. Threaded hole; 74. Bolt; 75. Connecting rod;

[0046] 8. Motor; 91. Cleaning roller one; 92. Cleaning roller two; 93. Connecting shaft; 94. Gear two. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 11 , the present invention provides a technical solution:

[0049] A shot peening strengthening device for leaf spring production comprises a base 1 and a fence 11 fixed around the upper end surface of the base 1, a leaf spring processing cabinet 4 is arranged on the base 1, a second shot peening machine 3 distributed and fixed on the leaf spring processing cabinet 4, and a first shot peening machine 2 distributed on the right side of the leaf spring processing cabinet 4 and fixed to the base 1, the leaf spring processing cabinet 4 is designed in a cylindrical structure, and the front and rear ends are designed in an open shape, and the front and rear ends of the leaf spring processing cabinet 4 are bolted and fixed with a sealing door panel 41, and the design purpose of the sealing door panel 41 is to facilitate the installation and maintenance of the internal structure of the leaf spring processing cabinet 4, and the front side sealing door panel 41 is symmetrically provided with a material port 42, and the material port 42 is connected to the inside of the leaf spring processing cabinet 4, and of the two material ports 42 on the front side sealing door panel 41, the upper side material port 42 is for feeding The material inlet and the lower material port 42 are the material outlets. Rubber shielding sheets 421 are symmetrically fixed in the two material ports 42. The adjacent ends of the two rubber shielding sheets 421 are free movable ends. The inner rotation of the leaf spring processing cabinet 4 is connected with a fixed sleeve 5, and the front side of the fixed sleeve 5 is designed to be open. A motor 8 is fixed on the rear sealing door panel 41, and the motor 8 is connected to the fixed sleeve 5 in a transmission manner. At least six groups of clamping members 51 are distributed in an annular manner at equal distances on the outer surface of the fixed sleeve 5. A transmission shaft 54 ​​is fixed to the middle of the rear end of the fixed sleeve 5, and the transmission shaft 54 ​​is connected and fixed to the output shaft of the motor 8 by connecting flange screws. A slide rail 53 of an annular structure is fixed to the edge of the rear end surface of the fixed sleeve 5, and the fixed sleeve 5 is movably connected to the rear sealing door panel 41 through the slide rail 53.

[0050] A second spray gun 31 is provided between the leaf spring processing cabinet 4 and the fixed sleeve 5, and the second spray gun 31 is designed with an inclination angle corresponding to the second shot peening machine 3, and the second spray gun 31 is connected to the second shot peening machine 3 through a pipeline;

[0051] A fixing plate 23 is provided in the fixing sleeve 5, and the front end of the fixing plate 23 is fixed to the front sealing door plate 41, a first spray gun 22 is fixed on the fixing plate 23, and the first spray gun 22 is designed at an inclined angle, one end of the first spray gun 22 is connected and fixed with a conveying pipe 21, and the other end of the conveying pipe 21 passes through the leaf spring processing cabinet 4 and is connected with the first shot peening machine 2.

[0052] Specifically, if Figure 1 and Figure 3 , Figure 4 As shown, a supporting plate 43 is fixed to the outer lower side of the leaf spring processing cabinet 4, and a supporting seat 44 is symmetrically fixed to the bottom of the supporting plate 43, and the bottom of the supporting seat 44 is fixed to the base 1, and a shot box 45 is arranged between the two supporting seats 44, and the top of the shot box 45 is open, and a discharge slot 46 is provided at a position corresponding to the opening of the upper end of the shot box 45 on the surface of the supporting plate 43, and the discharge slot 46 extends into the leaf spring processing cabinet 4, and a filter plate 47 is screwed to the discharge slot 46 on the lower side of the leaf spring processing cabinet 4.

[0053] By adopting the above technical solution, the pellets are filtered through the filter plate 47 and fall into the pill box 45 for subsequent recovery and reuse of the pellets. The unqualified pellets can be taken out by opening the filter plate 47 according to the daily workload and the user can choose three days or one week of working time.

[0054] Specifically, if Figure 3 and Figure 5 , Figure 6 , Figure 8 As shown, the clamping member 51 includes a clamping groove 51a opened on the front side of the fixed sleeve 5, and clamping plates 51b are symmetrically arranged on both sides of the inside of the clamping groove 51a, and guide columns 51c are symmetrically fixed to the adjacent ends of the clamping plate 51b and the clamping groove 51a. A guide hole 51d is opened at the inner wall of the clamping groove 51a corresponding to the guide column 51c, and the guide column 51c is movably connected in the guide hole 51d and cannot be detached. A spring 51e is arranged between the guide column 51c and the guide hole 51d, and the front side of the clamping plate 51b is designed with an inclination angle.

[0055] By adopting the above technical scheme, the output end of the hydraulic cylinder 61 continues to push the slider 65 to move inside the movable groove 64, and then the two ends of the rear side of the leaf spring to be processed contact with the inclined surfaces of the two clamping plates 51b in the clamping groove 51a, and squeeze the clamping plate 51b. The clamping plate 51b compresses the spring 51e in the guide hole 51d through the guide column 51c to accumulate potential. After the two clamping plates 51b clamp the two ends of the leaf spring to be processed at the same time, the electromagnet in the loading tray 7 is powered off, and the magnetic attraction force between the leaf spring to be processed and the loading tray 7 disappears. Then the controller controls the hydraulic cylinder 61 to reversely displace and retreat. At this time, the leaf spring to be processed is clamped and fixed in the clamping groove 51a, and then the loading tray 7 is reversely displaced and reset to carry out the loading of the next group of leaf springs to be processed.

[0056] Specifically, if Figure 3 and Figure 5 , Figure 6 , Figure 7As shown, a cleaning roller 1 91 and a cleaning roller 2 92 are respectively provided inside the leaf spring processing cabinet 4. Cleaning roller 2 92 and cleaning roller 1 91 are respectively distributed on the inner and outer sides of the fixed sleeve 5. Connecting shafts 93 are fixed at both ends of cleaning roller 1 91 and cleaning roller 2 92. The front ends of cleaning roller 1 91 and cleaning roller 2 92 are rotatably connected to the front sealing door panel 41 through the connecting shafts 93. Gear 2 94 is sleeved and fixed on the outside of the rear connecting shafts 93 of cleaning roller 1 91 and cleaning roller 2 92. An outer gear ring 55 and an inner gear ring 52 are respectively fixed to the outer and inner sides of the fixed sleeve 5 corresponding to gear 2 94. The inner gear ring 52 is meshed and connected with the outer gear ring 55 and gear 2 94.

[0057] By adopting the above technical scheme, when the leaf spring to be processed has completed the surface shot peening work after passing through the first spray gun 22 and the second spray gun 31, a large amount of metal dust generated during the shot peening process will be attached to the surface of the leaf spring. In the subsequent leaf spring painting operation, the metal dust on the surface needs to be cleaned for the second time, otherwise it will affect the spraying and adhesion of the paint. Therefore, the fixed sleeve 5 rotates to drive the leaf spring after shot peening to pass through the cleaning roller 1 91 and the cleaning roller 2 92. The surfaces of the cleaning rollers 1 91 and 2 92 are actually fixed with a layer of steel wire grinding layer. During the counterclockwise rotation of the fixed sleeve 5, the inner gear ring 52 and the outer gear ring 55 are meshed with the gear 2 94, driving the connecting shaft 93, and further driving the cleaning rollers 1 91 and 2 92 to rotate, so as to clean the surfaces of the leaf spring and the fixed sleeve 5 that have passed through, and remove the metal dust attached to the surface.

[0058] Specifically, if Figure 1 and Fig. 9 , Fig.10 , Fig.11 As shown, a loading tray 7 is arranged in front of the leaf spring processing cabinet 4, and a rotating loading part 6 is arranged on the lower side of the loading tray 7. The rear end surface of the loading tray 7 and the positions corresponding to the two material ports 42 are fixedly connected with limiting clamps 71. The limiting clamps 71 are designed as two groups with arc-shaped structures. Limiting end plates 72 are arranged at both ends between the two limiting clamps 71. Bolts 74 are fixed at one end of the limiting end plate 72. Threaded holes 73 are opened at equal distances between the two limiting clamps 71. The threaded holes 73 are threadedly connected to the bolts 74. An arc-shaped electromagnet is embedded in the loading tray 7, and the electromagnet corresponds to the position between the two limiting clamps 71.

[0059] The rotating loading member 6 includes a guide rail 62 fixedly connected to the base 1, and a movable groove 1 63 and a movable groove 2 64 are respectively opened in the guide rail 62, wherein the movable groove 1 63 is located at the lower side of the movable groove 2 64, a slider 65 is slidably connected in the movable groove 2 64, a gear 1 66 is rotatably connected in the movable groove 1 63, a rack 67 is fixed to the inner wall of the movable groove 1 63, the gear 1 66 is meshed and connected with the rack 67, a connecting rod 75 is fixed to the upper end surface of the gear 1 66, and the top of the connecting rod 75 passes through the slider 65 and is fixed to the loading tray 7, the connecting rod 75 is rotatably connected to the slider 65, the length of the rack 67 is half of the length of the movable groove 1 63, and one end of the guide rail 62 is fixedly connected to a hydraulic cylinder 61 fixed to the slider 65.

[0060] The locking cam 72 is then engaged with the locking cam 73 so that the locking cam 73 is in a position to lock the locking cam 72. The locking cam 73 is in a position to lock the locking cam 73. When the locking cam 73 is engaged, the locking cam 73 is engaged. The output end of 61 extends, and the output end of the hydraulic cylinder 61 pushes the slider 65 located in the movable groove 2 64 inside the guide rail 62. At this time, the slider 65 slides stably in the movable groove 2 64 and drives the connecting rod 75 to move and displace, while the gear 1 66 on the lower side of the connecting rod 75 moves synchronously inside the movable groove 1 63. At this time, the gear 1 66 meshes with the rack 67 in the movable groove 1 63 during the movement, so the gear 1 66 rotates and drives the connecting rod 75 to rotate. At this time, the loading disk 7 on the connecting rod 75 rotates counterclockwise, and the leaf spring to be processed located on the front side of the loading disk 7 and fixed by magnetic attraction also faces the leaf spring processing cabinet 4 with the rotation of the loading disk 7. When the gear disengages from the rack 67, the loading disk 7 rotates exactly one hundred and eighty degrees, and then the output end of the hydraulic cylinder 61 continues to push the slider 65 to move inside the movable groove 2 64, and then the leaf spring to be processed rotates and corresponds to the feed inlet at the material port 42, and then the leaf spring to be processed is pushed into the leaf spring processing cabinet 4 through the feed inlet.

[0061] Working principle:

[0062] The processing flow of leaf springs in this application includes loading the leaf springs to be processed, shot peening the concave surface of the leaf springs to be processed, shot peening the convex surface of the leaf springs to be processed, cleaning the surface of the leaf springs after shot peening, and unloading the leaf springs after shot peening (unloading and loading are completed simultaneously). This is a complete processing flow of a single leaf spring. The specific processing flow is as follows:

[0063] Since there are no leaf springs in the leaf spring processing cabinet 4 at the early stage, and there are no leaf springs after shot peening, the leaf springs after shot peening can be unloaded for the fourth time only after the loading tray 7 completes the loading of four groups of leaf springs to be processed in the leaf spring processing cabinet 4. At this time, the loading and unloading are completed synchronously by the loading tray 7.

[0064] During operation, first, the motor 8 connected to the external controller and the power supply drives the transmission shaft 54 ​​under the control of the controller, and the fixed sleeve 5 is driven to rotate slowly counterclockwise inside the leaf spring processing cabinet 4. At this time, the fixed sleeve 5 can rotate stably through the slide rail 53 between the rear sealing door panel 41. At this time, the controller controls the first shot peening machine 2 and the second shot peening machine 3 to operate, and the shot is transported to the first spray gun 22 and the second spray gun 31 through the conveying pipe 21, and sprayed out through the spray gun. At this time, the leaf spring to be processed is installed between the limit clamps 71 on the loading tray 7 manually or by a mechanical arm. At the initialization of the device, The limiting clamping plate 71 on the loading tray 7 is at the front side to facilitate the loading of the leaf spring. The leaf spring to be processed is located between the two limiting clamping plates 71, and the two ends are located between the limiting end plates 72. The leaf spring to be processed is initially fixed. The limiting end plate 72 here is detachably connected to the threaded hole 73 by bolts 74. When the leaf springs to be processed of different lengths are initially fixed later, the user can adjust according to the length of the leaf spring to be processed so that the limiting end plate 72 is fixed to the two ends of the leaf spring to be processed, and the loading tray 7 has an arc-shaped electromagnet built in. At this time, the controller controls the arc-shaped electromagnet to conduct electricity to generate magnetic force, which limits the limiting clamping plate 71 and the limiting end plate 7 2, the plate spring to be processed is magnetically fixed, and then the controller controls the output end of the hydraulic cylinder 61 to extend, and the output end of the hydraulic cylinder 61 pushes the slider 65 located in the movable groove 2 64 inside the guide rail 62. At this time, the slider 65 slides stably in the movable groove 2 64 and drives the connecting rod 75 to move, and the gear 1 66 on the lower side of the connecting rod 75 moves synchronously inside the movable groove 1 63. At this time, the gear 1 66 is engaged with the rack 67 in the movable groove 1 63 during the movement, so the gear 1 66 rotates and drives the connecting rod 75 to rotate. At this time, the loading tray 7 on the connecting rod 75 rotates counterclockwise, and the loading tray 7 located in front of the loading tray 7 The leaf spring to be processed fixed by the side magnetic attraction also faces the leaf spring processing cabinet 4 as the loading tray 7 rotates. When the gear is disengaged from the rack 67, the loading tray 7 rotates exactly 180 degrees, and then the output end of the hydraulic cylinder 61 continues to push the slider 65 to move inside the movable groove 2 64. Then the leaf spring to be processed rotates to correspond to the feed inlet at the material port 42, and then the leaf spring to be processed is pushed into the leaf spring processing cabinet 4 through the feed inlet. The rubber shielding sheet 421 designed at the material port 42 can not only not affect the entry of the leaf spring to be processed during the entry process, but also can shield the material port 42 when loading, so as to prevent the shot material from splashing through the material port 42.

[0065] After the leaf spring to be processed enters the leaf spring processing cabinet 4 through the feed inlet, it corresponds to the clamping groove 51a in one of the clamping members 51 on the surface of the fixed sleeve 5. At this time, the motor 8 stops driving the fixed sleeve 5 to rotate, and then the output end of the hydraulic cylinder 61 continues to push the slider 65 to move inside the movable groove 2 64. Then the two ends of the rear side of the leaf spring to be processed contact with the inclined surfaces of the two clamping plates 51b in the clamping groove 51a, and squeeze the clamping plates 51b. The clamping plates 51b compress the spring 51e in the guide hole 51d through the guide column 51c to accumulate potential. After the two clamping plates 51b clamp the two ends of the leaf spring to be processed at the same time, the electromagnet in the loading tray 7 is powered off, and the magnetic attraction force between the leaf spring to be processed and the loading tray 7 disappears. Then the controller controls the hydraulic cylinder 61 to move back in the reverse direction. At this time, the leaf spring to be processed is clamped and fixed in the clamping groove 51a, and then the loading tray 7 is reversed and reset to carry out the loading work of the next group of leaf springs to be processed.

[0066] Then the motor 8 continues to drive the fixed sleeve 5 to carry the leaf spring to be processed to rotate counterclockwise and displace, the first shot peening machine 2 cooperates with the first spray gun 22 through the conveying pipe 21 to perform shot peening on the concave surface of the leaf spring to be processed, and then after passing through the second shot peening machine 3 and the second spray gun 31, the convex surface of the leaf spring to be processed is shot peened by the second spray gun 31. The design of the inclination angle of the second spray gun 31 enables the leaf spring to be fully shot peened during the counterclockwise rotation and displacement of the leaf spring. Similarly, the first spray gun 22 can also be used to shot peen the leaf spring to be processed, and the shot material sprayed by the second spray gun 31 flows downward through the right side between the fixed sleeve 5 and the leaf spring processing cabinet 4 to the filter plate 47, and the shot material is filtered by the filter plate 47 and falls into the shot material box 45 for subsequent recovery and reuse of the shot material. The unqualified shot material can be taken out by opening the filter plate 47 according to the daily workload.

[0067] When the leaf spring to be processed has completed the surface shot peening work after passing through the first spray gun 22 and the second spray gun 31, a large amount of metal dust generated during the shot peening process will be attached to the surface of the leaf spring. In the subsequent leaf spring painting process, the metal dust on the surface needs to be cleaned for a second time, otherwise it will affect the spraying and adhesion of the paint. Therefore, the fixed sleeve 5 rotates to drive the leaf spring after shot peening to pass through the cleaning roller 1 91 and the cleaning roller 2 92. The surfaces of the cleaning roller 1 91 and the cleaning roller 2 92 are actually fixed with a layer of steel wire grinding layer. During the counterclockwise rotation of the fixed sleeve 5, the inner gear ring 52 and the outer gear ring 55 are meshed with the gear 2 94, driving the connecting shaft 93, and further driving the cleaning roller 1 91 and the cleaning roller 2 92 to rotate, so as to clean the surfaces of the leaf spring and the fixed sleeve 5 that have passed through, and remove In addition to the metal dust attached to the surface, the cleaned leaf spring continues to rotate and displace, and when it corresponds to the discharge outlet, the loading disc 7 is close to synchronously realize the loading of the leaf spring to be processed and the unloading of the processed leaf spring. The unloading principle is the same as that of loading. The edge of the processed leaf spring is located in the limiting clamp 71, and the two ends are located between the limiting end plates 72. The electromagnet in the loading disc 7 at the limiting clamp 71 at the discharge outlet is controlled to electromagnetically attract the leaf spring, and the processed leaf spring is magnetically pulled to the leaf spring processing cabinet 4. Subsequently, the leaf spring at the limiting clamp 71 is added and unloaded by the mechanical arm. Here, the clamping groove 51a is opened because the leaf spring is unloaded, and the middle clamping groove 51a is in an open state. The shot material sprayed by the first spray gun 22 falls downward through here to the filter plate 47 for filtering the shot material.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shot peening device for leaf spring production, comprising a base (1) and a fence (11) fixed to the upper end surface of the base (1), a leaf spring processing cabinet (4) is arranged on the base (1), a second shot peening machine (3) distributed and fixed on the leaf spring processing cabinet (4), and a first shot peening machine (2) distributed on the right side of the leaf spring processing cabinet (4) and fixed to the base (1), characterized in that: The leaf spring processing cabinet (4) is designed in a cylindrical structure, and the front and rear ends are designed in an open shape. The front and rear ends of the leaf spring processing cabinet (4) are both connected and fixed with a sealing door plate (41) by bolts (74). The front sealing door plate (41) is symmetrically provided with a material opening (42), and the material opening (42) is communicated with the inside of the leaf spring processing cabinet (4). The interior of the leaf spring processing cabinet (4) is rotatably connected with a fixed sleeve (5), and the front side of the fixed sleeve (5) is designed in an open shape. A motor (8) is fixed on the rear sealing door plate (41), and the motor (8) is connected to the fixed sleeve (5) in a driving manner. The outer ring of the fixed sleeve (5) is equidistantly distributed with at least six groups of clamping members (51); A second spray gun (31) is arranged between the leaf spring processing cabinet (4) and the fixed sleeve (5), and the second spray gun (31) is designed with an inclination angle corresponding to the second shot peening machine (3), and the second spray gun (31) is connected to the second shot peening machine (3) via a pipeline; A fixing plate (23) is arranged in the fixing sleeve (5), and the front end of the fixing plate (23) is fixed to the front sealing door plate (41); a first spray gun (22) is fixed on the fixing plate (23), and the first spray gun (22) is designed to be inclined; one end of the first spray gun (22) is connected and fixed to a conveying pipe (21), and the other end of the conveying pipe (21) passes through the leaf spring processing cabinet (4) and is connected to the first shot peening machine (2); A loading tray (7) is arranged in front of the leaf spring processing cabinet (4), and a rotating loading member (6) is arranged on the lower side of the loading tray (7). The rear end surface of the loading tray (7) and the positions corresponding to the two material ports (42) are fixedly connected with limiting clamping plates (71), and the limiting clamping plates (71) are designed as two sets of arc-shaped structures; A limiting end plate (72) is provided at both ends between the two limiting clamps (71), a bolt (74) is fixed to one end of the limiting end plate (72), threaded holes (73) are provided at equal distances between the two limiting clamps (71), and the threaded holes (73) are threadedly connected to the bolts (74); An electromagnet with an arc-shaped structure is embedded and connected inside the loading tray (7), and the position of the electromagnet corresponds to the position between the two limit clamping plates (71).

2. A shot peening device for leaf spring production according to claim 1, characterized in that: A support plate (43) is fixed to the lower side of the exterior of the leaf spring processing cabinet (4), and a support seat (44) is symmetrically fixed to the bottom of the support plate (43), the bottom of the support seat (44) is fixed to the base (1), a shot box (45) is arranged between the two support seats (44), and the top of the shot box (45) is open, a feed slot (46) is provided on the surface of the support plate (43) at a position corresponding to the upper opening of the shot box (45), and the feed slot (46) extends into the leaf spring processing cabinet (4), and a filter plate (47) is screwed to the feed slot (46) on the lower side of the leaf spring processing cabinet (4).

3. The shot peening device for leaf spring production according to claim 1, characterized in that: The clamping member (51) comprises a clamping groove (51a) provided on the front side of the fixing sleeve (5), clamping plates (51b) are symmetrically arranged on both sides of the inside of the clamping groove (51a), guide pillars (51c) are symmetrically fixed to the adjacent ends of the clamping plate (51b) and the clamping groove (51a) in front and back, and a guide hole (51d) is provided on the inner wall of the clamping groove (51a) at a position corresponding to the guide pillar (51c), and the guide pillar (51c) is movably connected in the guide hole (51d) and cannot be separated.

4. A shot peening device for leaf spring production according to claim 3, characterized in that: A spring (51e) is provided between the guide column (51c) and the guide hole (51d); the front side of the clamping plate (51b) is designed with an inclination angle; of the two material openings (42) on the front sealing door plate (41), the upper material opening (42) is a material inlet, and the lower material opening (42) is a material outlet.

5. The shot peening device for leaf spring production according to claim 1, characterized in that: A transmission shaft (54) is fixed to the middle of the rear end of the fixed sleeve (5), and the transmission shaft (54) is connected and fixed to the output shaft of the motor (8) via a connecting flange screw. A slide rail (53) with an annular structure is fixed to the edge of the rear end surface of the fixed sleeve (5), and the fixed sleeve (5) is movably connected to the sealing door panel (41) at the rear side via the slide rail (53).

6. The shot peening device for leaf spring production according to claim 1, characterized in that: A cleaning roller 1 (91) and a cleaning roller 2 (92) are respectively arranged inside the leaf spring processing cabinet (4). The cleaning roller 2 (92) and the cleaning roller 1 (91) are respectively distributed on the inner and outer sides of the fixed sleeve (5). Connecting shafts (93) are fixed to both ends of the cleaning roller 1 (91) and the cleaning roller 2 (92). The front ends of the cleaning roller 1 (91) and the cleaning roller 2 (92) are rotatably connected to the front sealing door plate (41) through the connecting shafts (93). The rear connecting shafts (93) of the cleaning roller 1 (91) and the cleaning roller 2 (92) are sleeved and fixed with a gear 2 (94) outside. An outer gear ring (55) and an inner gear ring (52) are respectively fixed to the outer and inner sides of the fixed sleeve (5) at positions corresponding to the gear 2 (94). The inner gear ring (52) is meshedly connected with the outer gear ring (55) and the gear 2 (94).

7. A shot peening device for leaf spring production according to claim 6, characterized in that: The rotating loading member (6) comprises a guide rail (62) fixedly connected to the base (1), wherein a movable groove 1 (63) and a movable groove 2 (64) are respectively formed in the guide rail (62), wherein the movable groove 1 (63) is located at the lower side of the movable groove 2 (64), a slider (65) is slidably connected in the movable groove 2 (64), a gear 1 (66) is rotatably connected in the movable groove 1 (63), a rack (67) is fixed to the inner wall of the movable groove 1 (63), the gear 1 (66) is meshingly connected to the rack (67), a connecting rod (75) is fixed to the upper end surface of the gear 1 (66), and the top of the connecting rod (75) passes through the slider (65) and is fixed to the loading plate (7), the connecting rod (75) is rotatably connected to the slider (65), the length of the rack (67) is half of the length of the movable groove 1 (63), and one end of the guide rail (62) is fixedly connected to a hydraulic cylinder (61) fixed to the slider (65).

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