Assembly equipment for leaf spring assembly of electric tricycle

Abstract

The present invention discloses an assembly device for a leaf spring assembly of an electric tricycle, and relates to the technical field of leaf spring assembly, comprising a base, wherein a first conveying mechanism for conveying steel plates is provided on the upper side of the base, an assembly mechanism for assembling steel plates is provided on one side of the first conveying mechanism, and a second conveying mechanism for conveying screws and nuts is provided on one side of the assembly mechanism, and while all steel plates are pressed by a first pressing block and a second pressing block, an electric push rod and a locking motor inside the first pressing block and the second pressing block control the screws and nuts to be automatically locked, thereby quickly and tightly positioning all steel plates, achieving a high leaf spring assembly efficiency, and a semicircular arc plate positions the ears of the protective steel plates, so that all steel plates are located at the center of the first pressing block and the second pressing block when pressed, effectively preventing all steel plates from being offset when pressed, and achieving a high leaf spring assembly accuracy effect.

Description

Technical Field

[0001] The invention relates to the technical field of leaf spring assembly, and more specifically, to an assembly device for a leaf spring assembly of an electric tricycle. Background Art

[0002] As an important component of the electric tricycle suspension system, the leaf spring is responsible for transmitting and absorbing the longitudinal force from the ground, which plays a role in mitigating impact and improving ride comfort.

[0003] Leaf springs are usually composed of bolts, locking plates, main steel plates, protective steel plates, long steel plates, medium steel plates and short steel plates. Currently, leaf springs are assembled manually. The staff first puts the protective steel plate on the outside of the main steel plate, and then uses a long rod to pass through the threaded holes of the protective steel plate and the main steel plate, and then puts on the long steel plate, medium steel plate and short steel plate in turn. Then all the steel plates are squeezed by a hydraulic press, the long rod is pulled out and all the steel plates are fixed with bolts, and the long steel plate is locked together with the protective steel plate and the main steel plate with a locking plate.

[0004] When the existing leaf springs are manually assembled, the heavy weight of the steel plates and the long time of manual handling and assembly will slow down the assembly time and reduce the assembly efficiency. When all the steel plates are fixed by bolts, different people use different locking forces. If the locking force is too small, the connection between the leaf spring and the bolt will not be strong enough. During the driving of the vehicle, the connection may gradually loosen due to vibration and impact, affecting the driving stability and safety. On the contrary, if the locking force is too large, it may cause fatigue damage to the bolts or leaf spring materials, or even breakage. Excessive preload may also change the stress distribution of the leaf spring, affecting its elastic properties and service life.

[0005] When squeezing all the steel plates, the steel plates placed by the personnel are too tilted, so that the pressing area is not in the exact center of all the steel plates. The extrusion position deviates from the center, which will cause uneven stress distribution and may cause stress concentration in certain areas of the leaf spring, which will increase the risk of leaf spring breakage.

[0006] Therefore, it is necessary to design an electric tricycle leaf spring assembly device that automatically locks screws and accurately positions them to improve the above-mentioned technical problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, an object of the present invention is to provide an assembly device for a leaf spring assembly of an electric tricycle.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an assembly device for an electric tricycle leaf spring assembly, comprising a base, a first conveying mechanism for conveying steel plates is provided on the upper side of the base, an assembly mechanism for assembling steel plates is provided on one side of the first conveying mechanism, and a second conveying mechanism for conveying screws and nuts is provided on one side of the assembly mechanism.

[0009] The present invention is further configured as follows: the second conveying mechanism includes a screw placing table fixedly connected to the upper side of the base, a plurality of screw limiting grooves are provided on the upper side of the screw placing table, a support table is provided on one side of the screw placing table and the support table is fixedly connected to the base, a first mechanical arm is fixedly connected to the upper side of the support table, an electric clamp is fixedly connected to the output end of the first mechanical arm, a nut placing table is provided on one side of the support table and the nut placing table is fixedly connected to the base, and a plurality of nut limiting grooves are provided on the upper side of the nut placing table.

[0010] The present invention is further configured as follows: the assembly mechanism includes a clamping assembly arranged on the upper side of the base and used to clamp all steel plates, one side of the clamping assembly is provided with a positioning assembly for positioning all steel plates, and both sides of the clamping assembly are respectively provided with locking assemblies for bending the locking plates and locking the protective steel plates, main steel plates and long steel plates with the locking plates.

[0011] The present invention is further configured as follows: the positioning assembly includes two slide rails fixedly connected to the upper side of the base, a slide plate is slidably connected to the upper sides of the two slide rails, a first cylinder is provided on one side of the slide plate, the first cylinder is fixedly connected to the base and the output end is fixedly connected to the slide plate, a positioning block is provided on the upper side of the slide plate, both sides of the positioning block are fixedly connected to a rotating shaft, the upper two sides of the slide plate are respectively fixedly connected to a support frame, one end of the two rotating shafts respectively passes through the two support frames, one end of each rotating shaft is fixedly connected to a semi-circular arc plate, one side of each semi-circular arc plate is fixedly connected to a circular baffle, one side of one of the support frames is fixedly connected to a first motor and the output end passes through the support frame, and one side of one of the semi-circular arc plates is fixedly connected to the output end of the first motor.

[0012] The present invention is further configured as follows: an electric push rod is fixedly connected to the interior of the positioning block, a smooth hole is provided inside the positioning block, a first hexagonal positioning column is fixedly connected to the output end of the electric push rod, the first hexagonal positioning column is slidably connected to the smooth hole, and a hexagonal positioning groove is provided inside the first hexagonal positioning column.

[0013] The present invention is further configured as follows: the clamping assembly includes a first bracket fixedly connected to the upper side of the base, a second cylinder fixedly connected to one side of the first bracket, a sliding column slidably connected to the inside of the first bracket, an output end of the second cylinder passes through the first bracket and is fixedly connected to a positioning plate, the sliding column is fixedly connected to the positioning plate, a third cylinder is fixedly connected to one side of the positioning plate, the third cylinder passes through the positioning plate, a first clamping block is fixedly connected to one side of the positioning plate, a second bracket is fixedly connected to the upper side of the base, a second clamping block is fixedly connected to one side of the second bracket, a support plate is fixedly connected between the first bracket and the second bracket, and avoidance grooves are provided inside the support plate and the second clamping block.

[0014] The present invention is further configured as follows: a locking motor is slidably connected inside the first clamping block, the output end of the third cylinder passes through the first clamping block and is fixedly connected to the locking motor, a clamping groove is provided at the output end of the locking motor, a material passing groove is provided inside the first clamping block, and the material passing groove is provided directly above the locking motor.

[0015] While all the steel plates are pressed by the first pressing block and the second pressing block, the electric push rods and locking motors inside the first pressing block and the second pressing block control the screws and nuts to automatically lock, so that all the steel plates are quickly and tightly positioned, achieving the effect of high leaf spring assembly efficiency, and the semi-circular arc plate positions the ears of the protective steel plates, so that all the steel plates are centered on the first pressing block and the second pressing block when pressed, effectively preventing all the steel plates from being offset when pressed, and achieving the effect of high leaf spring assembly accuracy.

[0016] The present invention is further configured as follows: the locking assembly includes a first hydraulic cylinder fixedly connected to one side of the second bracket, the output end of the first hydraulic cylinder is fixedly connected to a fixing plate, the inner side of the fixing plate is fixedly connected to a clamping motor, one side of the fixing plate is fixedly connected to a first clamping plate, the output end of the clamping motor is fixedly connected to a gear, the other end of the gear is connected to the first clamping plate bearing, the outer side of the gear is respectively slidably connected to the second rack and the first rack, the upper side of the second rack is fixedly connected to the second clamping plate, the lower side of the first rack is fixedly connected to the third clamping plate, and the third clamping plate and the second clamping plate are both slidably connected to the first clamping plate.

[0017] The first hydraulic cylinder and the clamping motor control the movement of the first, second and third pressing plates, thereby bending and clamping the locking plate, and then adjusting the deformation of the locking plate to tightly position the main steel plate, protective steel plate and long steel plate, effectively preventing the staff from hammering the locking plate and causing damage to the surface of the steel plate. When the first pressing plate bends the locking plate, the second and third pressing plates clamp the locking plate at the same time, so that the locking plate can more effectively tightly position the main steel plate, protective steel plate and long steel plate.

[0018] The present invention is further configured as follows: the first transport mechanism includes a second robotic arm fixedly connected to the upper side of the base, the output end of the second robotic arm is fixedly connected to a dual-axis cylinder, and the two output ends of the dual-axis cylinder are respectively fixedly connected to a first clamping plate and a second clamping plate.

[0019] The present invention is further configured as follows: a first slide groove and a second slide groove are provided on the inner side of the second clamping plate, one side of the first clamping plate and the second clamping plate are fixedly connected to a limiting block, and a first scraping module and a second scraping module are respectively provided in the middle of the first clamping plate and the second clamping plate from top to bottom.

[0020] The present invention is further configured as follows: the first scraping module includes a first electric slider slidably connected to the inside of the first slide groove, three first springs are fixedly connected to the inside of the first electric slider, the other ends of the three first springs are fixedly connected to the first scraper, and the first scraper is slidably connected to the inside of the first electric slider.

[0021] The present invention is further configured as follows: the second scraping module includes a second electric slider slidably connected to the inside of a second slide groove, two second springs are fixedly connected to the inside of the second electric slider, the other end of the second spring is fixedly connected to a second scraper, the second scraper is slidably connected to the inside of the second electric slider, the scraping ends of the first scraper and the second scraper are provided with inclined surfaces, the inclined surfaces are close to one side of the steel plate, and the two scraping ends of the first scraper and the second scraper abut against each other.

[0022] While transporting the long steel plate, the medium steel plate, or the short steel plate, the first scraper and the second scraper are controlled by the first electric slider to move back and forth on the upper and lower sides of the long steel plate, the medium steel plate, or the short steel plate, so that foreign matter on the upper and lower sides of the long steel plate, the medium steel plate, or the short steel plate can be adaptively scraped off, achieving a high scraping efficiency and effectively preventing the phenomenon that protruding foreign matter affects the stress distribution of subsequent leaf springs when the steel plates are assembled and extruded.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. While all the steel plates are pressed by the first pressing block and the second pressing block, the electric push rods and locking motors inside the first pressing block and the second pressing block control the screws and nuts to automatically lock, so that all the steel plates are quickly and tightly positioned, achieving the effect of high leaf spring assembly efficiency, and the semi-circular arc plate positions the ears of the protective steel plates, so that all the steel plates are in the center of the first pressing block and the second pressing block when pressed, effectively preventing all the steel plates from being offset when pressed, and achieving the effect of high leaf spring assembly accuracy.

[0025] 2. The first hydraulic cylinder and the clamping motor are used to control the movement of the first, second and third pressing plates, thereby bending and clamping the lock plate, and then adjusting the deformation of the lock plate to tightly position the main steel plate, the protective steel plate and the long steel plate, effectively preventing the staff from hammering the lock plate and causing damage to the surface of the steel plate. When the first pressing plate bends the lock plate, the second and third pressing plates clamp the lock plate at the same time, so that the lock plate can more effectively tightly position the main steel plate, the protective steel plate and the long steel plate.

[0026] 3. While transporting the long steel plate, the medium steel plate or the short steel plate, the first scraper and the second scraper are controlled by the first electric slider to move back and forth on the upper and lower sides of the long steel plate, the medium steel plate or the short steel plate, so as to adaptively scrape off foreign objects on the upper and lower sides of the long steel plate, the medium steel plate or the short steel plate, thereby achieving a high scraping efficiency and effectively preventing the protruding foreign objects from affecting the stress distribution of the subsequent leaf spring when the steel plates are assembled and extruded. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an assembly device for a leaf spring assembly of an electric tricycle according to the present invention;

[0028] Figure 2 is a structural schematic diagram of the second transport mechanism in the present invention;

[0029] Figure 3 It is a structural schematic diagram of the assembly mechanism in the present invention;

[0030] Figure 4 It is a structural schematic diagram of the positioning component in the present invention;

[0031] Figure 5 It is a schematic diagram of the structure inside the positioning block of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the pressing assembly in the present invention;

[0033] Figure 7 It is a schematic diagram of the internal structure of the first pressing block in the present invention;

[0034] Figure 8 It is a structural schematic diagram of the locking assembly in the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the first transport mechanism in the present invention;

[0036] Fig.10 is a schematic diagram of the internal structure of the second splint in the present invention;

[0037] Fig.11 It is a schematic diagram of the structure of the first scraping module and the second scraping module in the present invention;

[0038] Fig.12 It is a schematic diagram of the assembly process of the leaf spring in the present invention;

[0039] Fig.13 It is a schematic diagram of the state in which the positioning block moves into the avoidance groove of the second pressing block in the present invention.

[0040] Description of reference numerals: 1, base; 2, first transport mechanism; 21, second mechanical arm; 22, double-axis cylinder; 23, first clamping plate; 24, second clamping plate; 241, first slide; 242, first scraping module; 2421, first electric slider; 2422, first spring; 2423, first scraper; 243, limit block; 244, second slide; 245, second scraping module; 2451, second scraper; 2452, second electric slider; 2453, second spring;

[0041] 3. Assembly mechanism; 31. Clamping assembly; 311. First bracket; 312. Second cylinder; 313. Sliding column; 314. Positioning plate; 315. Third cylinder; 316. First clamping block; 3161. Material trough; 3162. Locking motor; 3163. Clamping groove; 317. Support plate; 318. Second bracket; 319. Second clamping block; 32. Positioning assembly; 321. Slide rail; 322. Slide plate; 323. First cylinder; 324. Positioning block ; 3241, electric push rod; 3242, first hexagonal positioning column; 3243, smooth hole; 325, rotating shaft; 326, first motor; 327, supporting frame; 328, semicircular arc plate; 329, round baffle; 33, locking assembly; 331, first hydraulic cylinder; 332, gear; 333, first rack; 334, fixing plate; 335, second pressing plate; 336, first pressing plate; 337, second rack; 338, clamping motor; 339, third pressing plate;

[0042] 4. Second transport mechanism; 41. Screw placement table; 42. Support table; 43. Nut placement table; 44. First robotic arm; 45. Electric gripper. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0045] For example, see Figure 1-13The present invention provides the following technical solutions: an assembly device for an electric tricycle leaf spring assembly, comprising a base 1, a first conveying mechanism 2 for conveying steel plates is provided on the upper side of the base 1, an assembly mechanism 3 for assembling steel plates is provided on one side of the first conveying mechanism 2, and a second conveying mechanism 4 for conveying screws and nuts is provided on one side of the assembly mechanism 3.

[0046] See also Figure 2 The second transport mechanism 4 includes a screw placement platform 41 fixedly connected to the upper side of the base 1, a plurality of screw limiting grooves are provided on the upper side of the screw placement platform 41, a support platform 42 is provided on one side of the screw placement platform 41 and the support platform 42 is fixedly connected to the base 1, a first mechanical arm 44 is fixedly connected to the upper side of the support platform 42, an electric clamp 45 is fixedly connected to the output end of the first mechanical arm 44, a nut placement platform 43 is provided on one side of the support platform 42 and the nut placement platform 43 is fixedly connected to the base 1, and a plurality of nut limiting grooves are provided on the upper side of the nut placement platform 43.

[0047] Specifically, the top of the screw placement platform 41 is used to place a plurality of screws, and the top of the nut placement platform 43 is used to place a plurality of nuts. The first mechanical arm 44 is used to control the electric gripper 45 to move, thereby controlling the electric gripper 45 to clamp and place the screws or nuts.

[0048] See also Figure 3 The assembly mechanism 3 includes a clamping assembly 31 which is arranged on the upper side of the base 1 and is used to clamp all the steel plates. One side of the clamping assembly 31 is provided with a positioning assembly 32 for positioning all the steel plates. Both sides of the clamping assembly 31 are provided with locking assemblies 33 which are used to bend the locking plates and lock the steel plates, main steel plates and long steel plates with the locking plates.

[0049] See also Figure 4 The positioning assembly 32 includes two slide rails 321 fixedly connected to the upper side of the base 1, and a slide plate 322 is slidably connected to the upper side of the two slide rails 321. A first cylinder 323 is provided on one side of the slide plate 322. The first cylinder 323 is fixedly connected to the base 1 and the output end is fixedly connected to the slide plate 322. A positioning block 324 is provided on the upper side of the slide plate 322. Both sides of the positioning block 324 are fixedly connected to a rotating shaft 325. Both sides of the upper side of the slide plate 322 are fixedly connected to support frames 327, respectively. One end of the two rotating shafts 325 passes through the two supporting frames 327 respectively, and one end of each rotating shaft 325 is fixedly connected to a semi-circular plate 328, and one side of each semi-circular plate 328 is fixedly connected to a circular baffle 329. One side of one of the supporting frames 327 is fixedly connected to a first motor 326, and the output end passes through the supporting frame 327, and the semi-circular plate 328 on the same side as the first motor 326 is fixedly connected to the output end of the first motor 326.

[0050] Specifically, the interior of the semi-circular plate 328 is used to place the ears of the protective steel plate. The rotation of the output end of the first motor 326 is used to control the rotation of the two semi-circular plates 328 and the positioning block 324, thereby controlling the rotation of the protective steel plate above the semi-circular plate 328. The positioning block 324 is used to position the main steel plate. The circular baffle 329 is used to limit the protective steel plate to prevent the protective steel plate from falling out of the semi-circular plate 328 when the output end of the first motor 326 rotates. The extension of the output end of the first cylinder 323 is used to control the movement of the slide plate 322, thereby controlling the movement of all steel plates inside the semi-circular plate 328.

[0051] See also Figure 5 The interior of the positioning block 324 is fixedly connected to an electric push rod 3241, a smooth hole 3243 is provided inside the positioning block 324, the output end of the electric push rod 3241 is fixedly connected to a first hexagonal positioning column 3242, the first hexagonal positioning column 3242 is slidably connected to the smooth hole 3243, and a hexagonal positioning groove is provided inside the first hexagonal positioning column 3242.

[0052] Specifically, the inside of the smooth hole 3243 is used to place the screw, the hexagonal positioning groove is used to position and clamp the screw, and the extension and retraction of the output end of the electric push rod 3241 is used to control the movement of the first hexagonal positioning column 3242 along the smooth hole 3243, thereby controlling the movement of the screw, and then passing the screw through the through hole of each steel plate.

[0053] See also Figure 6 The clamping assembly 31 includes a first bracket 311 fixedly connected to the upper side of the base 1, a second cylinder 312 is fixedly connected to one side of the first bracket 311, an output end of the second cylinder 312 passes through the first bracket 311 and is fixedly connected to a positioning plate 314, a sliding column 313 is fixedly connected to one side of the positioning plate 314, the sliding column 313 is slidably connected to the inside of the first bracket 311, a third cylinder 315 is fixedly connected to one side of the positioning plate 314, the third cylinder 315 passes through the positioning plate 314, a first clamping block 316 is fixedly connected to one side of the positioning plate 314, a second bracket 318 is fixedly connected to the upper side of the base 1, a second clamping block 319 is fixedly connected to one side of the second bracket 318, a support plate 317 is fixedly connected between the first bracket 311 and the second bracket 318, and avoidance grooves are provided inside the support plate 317 and the second clamping block 319.

[0054] Specifically, the extension of the output end of the second cylinder 312 is used to control the movement of the positioning plate 314, thereby controlling the first clamping block 316 to approach the second clamping block 319, and then clamping all steel plates between the first clamping block 316 and the second clamping block 319.

[0055] See also Figure 7The first clamping block 316 is internally slidably connected with a locking motor 3162, the output end of the third cylinder 315 passes through the first clamping block 316 and is fixedly connected to the locking motor 3162, a clamping groove 3163 is provided at the output end of the locking motor 3162, and a material passing groove 3161 is provided inside the first clamping block 316, and the material passing groove 3161 is provided directly above the locking motor 3162.

[0056] Specifically, the material passage 3161 is used to pass the nut, the clamping groove 3163 is an adaptable shape that can be embedded in the nut, the interior of the clamping groove 3163 is used to position the nut, and the extension and retraction of the output end of the third cylinder 315 is used to control the movement of the locking motor 3162, thereby controlling the movement of the nut so that it rests against the threaded end of the screw, and the rotation of the output end of the locking motor 3162 is used to control the rotation of the nut, thereby locking the nut and the screw.

[0057] See also Fig.12 , abcdef six processes are continuous leaf spring installation steps, a is to assemble the main steel plate and the protection steel plate together, and the screws pass through the main steel plate and the protection steel plate, b is to continue to assemble the long steel plate, and the screws pass through the long steel plate, c is to continue to assemble the medium steel plate, and the screws pass through the medium steel plate, d is to continue to assemble the short steel plate, and the screws pass through the short steel plate, e is to lock the screws and nuts to tightly position the center of all steel plates, f is to bend and press the locking plate, and tightly position the two sides of the main steel plate, protection steel plate and long steel plate.

[0058] Before the steel plate is pressed, the output end of the electric push rod 3241 extends out to control the first hexagonal positioning column 3242 to rise to the top of the positioning block 324, and the first mechanical arm 44 controls the electric clamp 45 to move to clamp a screw above the screw placement platform 41, and place it inside the smooth hole 3243 to be clamped by the hexagonal positioning groove of the first hexagonal positioning column 3242. The output end of the electric push rod 3241 retracts to control the first hexagonal positioning column 3242 to return. At this time, the uppermost end of the screw does not exceed the smooth hole 3243. The first mechanical arm 44 controls the electric clamp 45 to move to clamp a nut above the nut placement platform 43, and place it inside the material trough 3161. The nut slides downward along the material trough 3161 and falls into the clamping groove 3163. At this time, the nut is clamped by the clamping groove 3163.

[0059] The first conveying mechanism 2 conveys the protective steel plate and places its two ears inside the two semicircular plates 328 respectively. The output end of the first motor 326 rotates ninety degrees clockwise to rotate the protective steel plate and put it down. The first conveying mechanism 2 now conveys the main steel plate and inserts the two ears of the main steel plate into the two ears of the protective steel plate. The output end of the first motor 326 rotates ninety degrees counterclockwise to rotate the protective steel plate and the main steel plate and straighten them. At this time, the through hole of the protective steel plate and the through hole of the main steel plate are on the same axis. The output end of the electric push rod 3241 extends out to control the screw to move upward until the top of the nut of the screw presses the bottom of the main steel plate. The output end of the electric push rod 3241 stops extending. The first conveying mechanism 2 conveys the long steel plate, the medium steel plate and the short steel plate in turn, and inserts the through holes of the long steel plate, the medium steel plate and the short steel plate into the threaded end of the screw respectively.

[0060] When all the steel plates are assembled together, the output end of the first motor 326 is rotated 90 degrees clockwise to lay down all the steel plates. At this time, the threaded end of the screw is aligned with the output end of the locking motor 3162. Fig.13 The output end of the first cylinder 323 extends out to control the positioning block 324 to move into the avoidance groove of the second clamping block 319. At this time, the main steel plate is supported by the second clamping block 319. The output end of the second cylinder 312 extends out to control the first clamping block 316 to move, so that the first clamping block 316 is close to the second clamping block 319, and then all the steel plates between the first clamping block 316 and the second clamping block 319 are clamped. At this time, the threaded end of the screw enters the interior of the first clamping block 316 and supports the nut. The output end of the third cylinder 315 continues to extend. At the same time, the output end of the locking motor 3162 rotates clockwise, thereby threading the nut and the screw.

[0061] Until the nut and the screw are completely tightened, one side of the nut is pressed against one side of the short steel plate, the output end of the third cylinder 315 begins to retract, driving the locking motor 3162 to return, the output end of the locking motor 3162 stops rotating, and the locking assembly 33 locks the locking plate of the main steel plate on the long steel plate, thereby tightly positioning the main steel plate, the protective steel plate, and the long steel plate. The output end of the second cylinder 312 retracts and controls the first clamping block 316 to return. At this time, all steel plates are no longer clamped by the first clamping block 316, and the output end of the first cylinder 323 retracts, driving all steel plates to return, and the output end of the first motor 326 rotates counterclockwise ninety degrees, thereby rotating all steel plates and straightening them, and the first conveying mechanism 2 takes away the assembled leaf spring.

[0062] While all the steel plates are clamped by the first clamping block 316 and the second clamping block 319, the electric push rod 3241 and the locking motor 3162 inside the first clamping block 316 and the second clamping block 319 control the screws and nuts to automatically lock, so that all the steel plates are quickly and tightly positioned, achieving a high efficiency in leaf spring assembly, and the semi-circular arc plate 328 positions the ears of the protective steel plates, so that all the steel plates are in the center of the first clamping block 316 and the second clamping block 319 when clamped, effectively preventing all the steel plates from being offset when clamped, thereby achieving a high accuracy in leaf spring assembly.

[0063] Embodiment 2: In the prior art, workers usually use a hammer to knock the lock plate to lock it, but the knocking position is easy to be knocked off-position, and the surface of the steel plate will be directly knocked, thereby causing damage to the surface of the steel plate, and the knocking force is difficult to control. When the knocking force is large, the lock plate will hit the steel plate and cause wear on the steel plate. Therefore, the following structure is designed to solve the above technical problems.

[0064] See also Figure 8 The locking assembly 33 includes a first hydraulic cylinder 331 fixedly connected to one side of the second bracket 318, the output end of the first hydraulic cylinder 331 is fixedly connected to a fixing plate 334, the inner side of the fixing plate 334 is fixedly connected to a clamping motor 338, one side of the fixing plate 334 is fixedly connected to a first clamping plate 336, the output end of the clamping motor 338 is fixedly connected to a gear 332, and the other end of the gear 332 is connected to the bearing of the first clamping plate 336.

[0065] Specifically, the extension of the output end of the first hydraulic cylinder 331 is used to control the clamping motor 338 to approach the locking plate, and then control the first pressure plate 336 to approach the locking plate. The clockwise rotation of the output end of the clamping motor 338 is used to control the second rack 337 to move upward and the first rack 333 to move downward, so that the second pressure plate 335 and the third pressure plate 339 are moved away from each other. The counterclockwise rotation of the output end of the clamping motor 338 is used to control the second rack 337 to move downward and the first rack 333 to move upward, so that the second pressure plate 335 and the third pressure plate 339 are moved closer to each other.

[0066] The outer sides of the gear 332 are slidably connected with the second rack 337 and the first rack 333 respectively, the upper side of the second rack 337 is fixedly connected with the second pressure plate 335, the lower side of the first rack 333 is fixedly connected with the third pressure plate 339, and the third pressure plate 339 and the second pressure plate 335 are both slidably connected with the first pressure plate 336.

[0067] Specifically, the hardness of the first pressing plate 336, the second pressing plate 335 and the third pressing plate 339 is greater than the hardness of the locking plate. When the main steel plate, the protective steel plate and the long steel plate need to be tightly positioned by the locking ring, the output end of the first hydraulic cylinder 331 extends to control the first pressing plate 336 to approach the locking plate and bend the locking plate. While the locking plate is bent, the output end of the clamping motor 338 rotates counterclockwise and counterclockwise in a cycle, and the second pressing plate 335 and the third pressing plate 339 continue to clamp the two sides of the locking plate, thereby clamping the locking plate. Pressed on both sides of the main steel plate, the protective steel plate and the long steel plate, when the shape of the locking plate becomes U-shaped and the second pressing plate 335 and the third pressing plate 339 are located on one side of the long steel plate, the output end of the clamping motor 338 rotates counterclockwise to control the second rack 337 to move downward, and the first rack 333 moves upward, so that the second pressing plate 335 and the third pressing plate 339 are close to each other, and the two ends of the locking plate are bent, so that the two ends of the locking plate are tightly attached to one side of the long steel plate, thereby completing the tight positioning of the main steel plate, the protective steel plate and the long steel plate by the locking ring.

[0068] The first hydraulic cylinder 331 and the clamping motor 338 control the movement of the first pressing plate 336, the second pressing plate 335 and the third pressing plate 339, so that the locking plate is bent and clamped, and then the deformation of the locking plate is adjusted to tightly position the main steel plate, the protective steel plate and the long steel plate, which effectively prevents the staff from hammering the locking plate and causing damage to the surface of the steel plate. When the first pressing plate 336 bends the locking plate, the second pressing plate 335 and the third pressing plate 339 clamp the locking plate at the same time, so that the locking plate can more effectively tightly position the main steel plate, the protective steel plate and the long steel plate.

[0069] Embodiment 3: Since the main steel plate and the protective steel plate are both rolled before assembly and a lock plate is welded on one side of the main steel plate, the surfaces of the main steel plate and the protective steel plate have been cleaned in advance. Ordinary steel plates are newly formed steel plates, and there may be protruding foreign objects such as tongues and bulges on the surface. Therefore, during assembly and extrusion, the presence of protruding foreign objects will affect the stress distribution of the subsequent leaf spring. Therefore, the following structure is designed to solve the above technical problems.

[0070] See also Fig. 9 The first transport mechanism 2 includes a second mechanical arm 21 fixedly connected to the upper side of the base 1, the output end of the second mechanical arm 21 is fixedly connected to a double-axis cylinder 22, and the two output ends of the double-axis cylinder 22 are respectively fixedly connected to a first clamping plate 23 and a second clamping plate 24.

[0071] Specifically, the extension and retraction of the output end of the dual-axis cylinder 22 is used to control the first clamping plate 23 and the second clamping plate 24 to move closer to or farther away from each other, thereby clamping or lowering the main steel plate, protective steel plate, long steel plate, medium steel plate and short steel plate respectively.

[0072] See also Fig.10A first slide groove 241 and a second slide groove 244 are provided on the inner side of the second clamping plate 24, and one side of the first clamping plate 23 and the second clamping plate 24 are fixedly connected to the limiting block 243. A first scraping module 242 and a second scraping module 245 are respectively provided in the middle of the first clamping plate 23 and the second clamping plate 24 from top to bottom.

[0073] Specifically, the limit block 243 is used to limit the upper part of one end of the long steel plate, the medium steel plate, and the short steel plate, so that when the long steel plate, the medium steel plate, and the short steel plate are clamped, the lowest points of the long steel plate, the medium steel plate, and the short steel plate remain the same.

[0074] See also Fig.11 The first scraping module 242 includes a first electric slider 2421 slidably connected to the inside of the first slide groove 241, three first springs 2422 are fixedly connected to the inside of the first electric slider 2421, and the other ends of the three first springs 2422 are fixedly connected to the first scraper 2423, and the first scraper 2423 is slidably connected to the inside of the first electric slider 2421.

[0075] Specifically, the first electric slider 2421 and the second electric slider 2452 are both equipped with motors to control the rotation of rollers, so that the rollers roll inside the first slide groove 241 and the second slide groove 244, and then the first electric slider 2421 and the second electric slider 2452 slide inside the first slide groove 241 and the second slide groove 244 respectively. The first scraper 2423 and the second scraper 2451 are used to scrape off the raised foreign objects on the upper and lower sides of the long steel plates, the medium steel plates and the short steel plates.

[0076] The second scraping module 245 includes a second electric slider 2452 which is slidably connected to the inside of the second slide groove 244, and two second springs 2453 are fixedly connected to the inside of the second electric slider 2452. The other end of the second spring 2453 is fixedly connected to the second scraper 2451, and the second scraper 2451 is slidably connected to the inside of the second electric slider 2452. The scraping ends of the first scraper 2423 and the second scraper 2451 are provided with inclined surfaces, and the inclined surfaces are close to one side of the steel plate, and the two scraping ends of the first scraper 2423 and the second scraper 2451 abut against each other.

[0077] Specifically, the stroke of the first spring 2422 is the same as the stroke of the second spring 2453, and the spring force of the first spring 2422 is greater than the spring force of the second spring 2453. Therefore, in the initial state, the distance that the first spring 2422 pops out the first scraper 2423 is longer than the distance that the second spring 2453 pops out the second scraper 2451. At this time, the abutment between the two scraping ends of the first scraper 2423 and the second scraper 2451 is at the same horizontal level as the lowest end of the long steel plate or the medium steel plate or the short steel plate. When the first electric slider 2421 and the second electric slider 2452 control the movement of the first scraper 2423 and the second scraper 2451 and press against one side of the long steel plate or the medium steel plate or the short steel plate, the inclined surface of the scraping end of the first scraper 2423 presses against the upper edge of one end of the long steel plate or the medium steel plate or the short steel plate, and the inclined surface of the scraping end of the second scraper 2451 presses against the lower edge of one end of the long steel plate or the medium steel plate or the short steel plate.

[0078] When the first clamping plate 23 and the second clamping plate 24 clamp the long steel plate, at this time, one end of the long steel plate is limited by the limit block 243, and the first electric slider 2421 and the second electric slider 2452 control the first scraper 2423 and the second scraper 2451 to move. At this time, the scraping end inclined surface of the first scraper 2423 is close to the upper edge of one end of the long steel plate, and the scraping end inclined surface of the second scraper 2451 is close to the lower edge of one end of the long steel plate. The first electric slider 2421 and the second electric slider 2452 control the first scraper 2423 and the second scraper 2451 to move again. The scraping end inclined surface of the first scraper 2423 is close to the upper edge of one end of the long steel plate The first electric slider 2421 and the second electric slider 2452 control the first scraper 2423 and the second scraper 2451 to move back and forth on the upper and lower sides of the long steel plate.

[0079] When scraping the highest points on the upper and lower sides of the long steel plate, the first spring 2422 and the second spring 2453 completely pop out the first scraper 2423 and the second scraper 2451 respectively; when scraping the lowest points on the upper and lower sides of the long steel plate, the first scraper 2423 and the second scraper 2451 completely compress the first spring 2422 and the second spring 2453 respectively, thereby adaptively scraping away foreign matter on the upper and lower sides of the long steel plate; when the long steel plate is about to be assembled, the first electric slider 2421 and the second electric slider 2452 control the first scraper 2423 and the second scraper 2451 to return to their positions, and at this time, the scraping ends of the first scraper 2423 and the second scraper 2451 abut against each other again.

[0080] While transporting the long steel plate, the medium steel plate or the short steel plate, the first scraper 2423 and the second scraper 2451 are controlled by the first electric slider 2421 and the second electric slider 2452 to move back and forth on the upper and lower sides of the long steel plate, the medium steel plate or the short steel plate, thereby adaptively scraping off foreign objects on the upper and lower sides of the long steel plate, the medium steel plate or the short steel plate, achieving a high scraping efficiency and effectively preventing the occurrence of protruding foreign objects affecting the stress distribution of subsequent leaf springs when the steel plates are assembled and extruded.

[0081] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An assembly device for an electric tricycle leaf spring assembly, characterized in that: The invention comprises a base (1), wherein a first transport mechanism (2) for transporting steel plates is provided on the upper side of the base (1), an assembly mechanism (3) for assembling steel plates is provided on one side of the first transport mechanism (2), and a second transport mechanism (4) for transporting screws and nuts is provided on one side of the assembly mechanism (3); The assembly mechanism (3) comprises a clamping assembly (31) disposed on the upper side of the base (1) and used to clamp all the steel plates; a positioning assembly (32) used to position all the steel plates is disposed on one side of the clamping assembly (31); and locking assemblies (33) are disposed on both sides of the clamping assembly (31) for bending the locking plates and locking the steel plates, main steel plates and long steel plates with the locking plates; The positioning assembly (32) comprises two slide rails (321) fixedly connected to the upper side of the base (1); a slide plate (322) is slidably connected to the upper side of the two slide rails (321); a first cylinder (323) is provided on one side of the slide plate (322); the first cylinder (323) is fixedly connected to the base (1) and the output end is fixedly connected to the slide plate (322); a positioning block (324) is provided on the upper side of the slide plate (322); and a rotating shaft (325) is fixedly connected to both sides of the positioning block (324); The upper two sides of the slide plate (322) are respectively fixedly connected to support frames (327), one end of the two rotating shafts (325) respectively penetrates the two supporting frames (327), one end of each rotating shaft (325) is fixedly connected to a semi-circular plate (328), one side of each semi-circular plate (328) is fixedly connected to a round baffle (329), one side of one of the supporting frames (327) is fixedly connected to a first motor (326) and the output end penetrates the supporting frame (327), and one side of one of the semi-circular plates (328) is fixedly connected to the output end of the first motor (326); An electric push rod (3241) is fixedly connected to the interior of the positioning block (324), a smooth hole (3243) is provided inside the positioning block (324), a first hexagonal positioning column (3242) is fixedly connected to the output end of the electric push rod (3241), the first hexagonal positioning column (3242) is slidably connected to the smooth hole (3243), and a hexagonal positioning groove is provided inside the first hexagonal positioning column (3242); The pressing assembly (31) comprises a first bracket (311) fixedly connected to the upper side of the base (1); a second cylinder (312) is fixedly connected to one side of the first bracket (311); an output end of the second cylinder (312) passes through the first bracket (311) and is fixedly connected to a positioning plate (314); A third cylinder (315) is fixedly connected to one side of the positioning plate (314), the third cylinder (315) passes through the positioning plate (314), a first clamping block (316) is fixedly connected to one side of the positioning plate (314), a second bracket (318) is fixedly connected to the upper side of the base (1), a second clamping block (319) is fixedly connected to one side of the second bracket (318), a support plate (317) is fixedly connected between the first bracket (311) and the second bracket (318), and avoidance grooves are provided inside the support plate (317) and the second clamping block (319); A locking motor (3162) is slidably connected inside the first clamping block (316), an output end of the third cylinder (315) passes through the first clamping block (316) and is fixedly connected to the locking motor (3162), a clamping groove (3163) is provided at the output end of the locking motor (3162), a material passing groove (3161) is provided inside the first clamping block (316), and the material passing groove (3161) is provided directly above the locking motor (3162).

2. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 1, characterized in that: The positioning plate (314) is fixedly connected to a sliding column (313), and the sliding column (313) is slidably connected to the inside of the first bracket (311).

3. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 1, characterized in that: The second transport mechanism (4) comprises a screw placement platform (41) fixedly connected to the upper side of the base (1), a plurality of screw limiting grooves being provided on the upper side of the screw placement platform (41), a support platform (42) being provided on one side of the screw placement platform (41) and the support platform (42) being fixedly connected to the base (1), a first mechanical arm (44) being fixedly connected to the upper side of the support platform (42), an electric clamping claw (45) being fixedly connected to the output end of the first mechanical arm (44), a nut placement platform (43) being provided on one side of the support platform (42) and the nut placement platform (43) being fixedly connected to the base (1), and a plurality of nut limiting grooves being provided on the upper side of the nut placement platform (43).

4. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 1, characterized in that: The locking assembly (33) comprises a first hydraulic cylinder (331) fixedly connected to one side of the second bracket (318); the output end of the first hydraulic cylinder (331) is fixedly connected to a fixed plate (334); the inner side of the fixed plate (334) is fixedly connected to a clamping motor (338); one side of the fixed plate (334) is fixedly connected to a first clamping plate (336); the output end of the clamping motor (338) is fixedly connected to a gear (332); the other end of the gear (332) is bearing-connected to the first clamping plate (336); the outer side of the gear (332) is slidably connected to a second rack (337) and a first rack (333); the upper side of the second rack (337) is fixedly connected to a second clamping plate (335); the lower side of the first rack (333) is fixedly connected to a third clamping plate (339); the third clamping plate (339) and the second clamping plate (335) are both slidably connected to the first clamping plate (336).

5. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 1, characterized in that: The first transport mechanism (2) comprises a second mechanical arm (21) fixedly connected to the upper side of the base (1); the output end of the second mechanical arm (21) is fixedly connected to a double-axis cylinder (22); the two output ends of the double-axis cylinder (22) are respectively fixedly connected to a first clamping plate (23) and a second clamping plate (24); the inner side of the second clamping plate (24) is provided with a first slide groove (241) and a second slide groove (244); one side of the first clamping plate (23) and the second clamping plate (24) are both fixedly connected to a limiting block (243); and a first scraping module (242) and a second scraping module (245) are respectively provided in the middle of the first clamping plate (23) and the second clamping plate (24) from top to bottom.

6. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 5, characterized in that: The first scraping module (242) comprises a first electric slider (2421) slidably connected to the inside of the first slide groove (241); three first springs (2422) are fixedly connected to the inside of the first electric slider (2421); the other ends of the three first springs (2422) are fixedly connected to a first scraper (2423); and the first scraper (2423) is slidably connected to the inside of the first electric slider (2421).

7. The assembly equipment for the leaf spring assembly of an electric tricycle according to claim 6, characterized in that: The second scraping module (245) comprises a second electric slider (2452) slidably connected to the inside of the second slide groove (244); two second springs (2453) are fixedly connected to the inside of the second electric slider (2452); the other end of the second spring (2453) is fixedly connected to the second scraper (2451); the second scraper (2451) is slidably connected to the inside of the second electric slider (2452); the scraping ends of the first scraper (2423) and the second scraper (2451) are provided with inclined surfaces, and the inclined surfaces are close to one side of the steel plate; the two scraping ends of the first scraper (2423) and the second scraper (2451) are in contact with each other.

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