Plate spring production and assembly equipment and method

Abstract

The invention provides plate spring production and assembly equipment and method, and belongs to the technical field of plate spring production. The plate spring production and assembly equipment and method are provided with an assembly table, and the assembly table is sequentially provided with a hole site adjusting assembly, a plate spring positioning assembly and a nut screwing assembly from front to back; the hole position adjusting assembly comprises a pin shaft moving longitudinally, and the pin shaft enables a center hole of the plate spring piece to drive the plate spring to correspond. The plate spring positioning assembly comprises blocking rods which move oppositely on the front side and the rear side, and the blocking rods are used for clamping the multiple plate spring pieces. A clamping block used for clamping a nut is arranged on the nut tightening assembly, and the clamping block is in longitudinal sliding connection relative to the assembling table and rotates. The assembling table is further provided with two feeding assemblies which are vertically connected in a sliding mode, the front-end feeding assembly is used for installing bolts, and the rear-end feeding assembly is used for installing nuts. The plate spring assembling equipment is used for solving the technical problems that existing assembling equipment lacks automatic installation of bolts and nuts, if batched plate springs are installed manually, time and labor are wasted, and the installation is not in place.

Description

Technical Field

[0001] The present invention belongs to the technical field of leaf spring production, and specifically relates to a leaf spring production and assembly device and method. Background Art

[0002] Automobile leaf springs are the most traditional elastic components in the automobile suspension system. Automobile leaf springs are generally composed of a group of alloy spring steels with different lengths to form a spring beam approximately of equal strength. The utility model with the application number: CN202021803143.3 (publication number: CN213064435U) discloses an automobile leaf spring assembly, and it can be seen that the existing leaf springs need to be assembled through bolts and nuts. The present invention with the application number: CN201910929115.1 (authorization number: CN110625368B) relates to an automatic leaf spring assembly device, including a storage table, a feeding mechanism, a sheet stacking workbench, a pressing tool, a positioning device and a hydraulic device. A plurality of storage tables are evenly arranged at one end of the feeding mechanism, the sheet stacking workbench is arranged at the other end of the feeding mechanism, the hydraulic device is installed at the upper end of the feeding mechanism, and the working end of the hydraulic device faces the working surface of the sheet stacking workbench. The pressing tool includes an upper pressing plate and a lower pressing plate. Two upper pressing plates are vertically installed at the working end of the hydraulic device, and two lower pressing plates are installed on the working surface of the sheet stacking workbench. The positioning device is installed at the bottom end of the sheet stacking workbench, and the working end of the positioning device penetrates through the working surface of the sheet stacking workbench and is arranged between the two lower pressing plates. The assembly device of the above patent lacks the automatic installation of bolts and nuts. In the actual assembly process, manually installing a batch of leaf springs is not only time-consuming and laborious, but also there will be situations where the installation is not in place (such as the nuts and bolts are not tightened). Summary of the Invention

[0003] In view of this, the present invention provides a leaf spring production and assembly device and method to solve the technical problem that the existing assembly device lacks the automatic installation of bolts and nuts. If manually installing a batch of leaf springs, it is not only time-consuming and laborious, but also there will be situations where the installation is not in place (such as the nuts and bolts are not tightened).

[0004] The present invention is implemented as follows: The present invention provides a leaf spring production and assembly device, which has an assembly table. Support legs are fixedly installed at the four corners of the bottom wall of the assembly table. Among them, a hole position adjustment component, a leaf spring positioning component and a nut tightening component are sequentially arranged on the assembly table from front to back. The hole position adjustment component includes a pin shaft that moves longitudinally, and the pin shaft makes the center hole of the leaf spring sheet drive the leaf spring to correspond. The leaf spring positioning component includes a stop rod that moves relatively on the front and rear sides, and the stop rod is used to clamp a plurality of leaf spring sheets. The nut tightening assembly is provided with a clamping block for clamping the nut, and the clamping block is longitudinally slidably connected and rotatable relative to the assembly table; The assembly table is further provided with two feeding assemblies that are vertically slidably connected. The two feeding assemblies move following the same-side stop rod. The front feeding assembly is used for installing bolts, and the rear feeding assembly is used for installing nuts.

[0005] On the basis of the above technical solution, a leaf spring production and assembly device of the present invention can be further improved as follows: Further, the hole position adjusting assembly includes a telescopic cylinder A fixedly installed on the assembly table. The movable end of the telescopic cylinder A extends backward, and a pin shaft is fixedly installed at the end. The diameter of the rear end of the pin shaft is slightly smaller than that of the front end.

[0006] Further, a sunken groove is formed on the assembly table. The leaf spring positioning assembly includes a support plate fixedly installed in the middle of the sunken groove. Through holes are provided at both the left and right ends of the support plate; A double-headed screw is rotatably connected through a bearing in the through hole on the right side. Threaded blocks are sleeved on both the front and rear ends of the double-headed screw. A driving motor A is fixedly installed inside the support plate and at the rear end of the double-headed screw. The vertical shaft of the driving motor A extends forward and is connected to the rear end of the double-headed screw through a coupling.

[0007] Further, a round rod is fixedly connected in the through hole on the left side. Movable blocks are sleeved on both the front and rear ends of the round rod and are slidably connected thereto; Stop rods are fixedly installed on the top walls of the threaded blocks and the movable blocks. The threaded blocks and the movable blocks are fixedly connected by a connecting rod.

[0008] Further, the nut tightening assembly includes a driving motor B. The output shaft of the driving motor B extends forward, and a guide rod is fixedly connected to the end. A clamping cylinder is fixedly installed at the front end of the guide rod; The fixed end of a telescopic cylinder B is also fixedly installed on the assembly table. The movable end of the telescopic cylinder B extends forward, and the end is fixedly connected to the driving motor B.

[0009] Further, hinge seats A are fixedly installed on both sides opposite to the clamping cylinder. The rear ends of the clamping plates are hinged to the hinge seats A, and clamping blocks are fixedly installed on the opposite surfaces of the front ends of the clamping plates; The outer ends of push rods are hinged in the middle of the clamping plates, and the inner ends of the push rods are hinged to hinge seats B. The hinge seats B are symmetrically fixedly installed on the piston rod of the clamping cylinder.

[0010] Further, the feeding component includes a hopper slidably connected vertically relative to the assembly table. A distributing column is rotatably connected to the lower end of the hopper. A plurality of distributing grooves are equidistantly arranged on the circumference of the distributing column. A baffle block fixedly installed on the hopper is arranged on the circumferential surface of one side of the distributing groove.

[0011] Further, a temporary storage block is fixedly installed on the bottom wall of the hopper. A temporary storage groove with the same size as the distributing groove is arranged at the upper end of the temporary storage block.

[0012] A method for manufacturing and assembling a leaf spring, which includes the following steps: S1: Extend the movable end of the telescopic cylinder A to drive the pin shaft to move backward. S2: Place the leaf spring sheet to be assembled on the support plate and the sinking groove, and insert the central hole of the leaf spring sheet onto the pin shaft. S3: Move the front and rear retaining rods inward simultaneously to hold the front and rear sides of the leaf spring sheet, preventing the leaf spring sheet from moving back and forth. S4: First, lower the rear feeding component to feed the nut. When a nut falls into the temporary storage groove, extend the movable end of the telescopic cylinder A again. The pin shaft is inserted into the threaded hole of the nut, and the nut is driven to move backward by the stepped pin shaft. S5: When the nut moves to the clamping cylinder, clamp the nut with the clamping block, fully retract the movable end of the telescopic cylinder A, and raise the rear feeding component. S6: Lower the front feeding component to feed the bolt. When a bolt falls into the temporary storage groove, extend the movable end of the telescopic cylinder A again to push the bolt into the central hole of the leaf spring sheet. At this time, the pin shaft abuts against the bolt and remains stationary. S7: At this time, drive the nut to move forward and rotate by the nut tightening component to tighten the nut on the bolt.

[0013] Compared with the prior art, the beneficial effects of a leaf spring production and assembly device provided by the present invention are as follows: By setting the hole position adjusting component, the lateral positioning of the leaf spring sheet can be carried out, and the nuts and bolts to be installed can be pushed. By setting the leaf spring positioning component, multiple leaf spring sheets can be fitted together, and the longitudinal positioning of the leaf spring sheet can be carried out. Cooperating with the hole position adjusting component, the leaf spring sheet cannot move, and subsequent installation operations can be carried out. By setting two feeding components, the nuts and bolts can be respectively fed. The stepping motor rotates the distributing column by one station at a time, that is, a distributing groove moves clockwise to the position of the adjacent distributing groove. The nuts and bolts fed by the feeding components have their central axes distributed longitudinally, so that the nuts and bolts do not need to be adjusted in angle and only need to be moved longitudinally for installation.

[0014] By setting the nut tightening component, the nut can be screwed onto the bolt. On the basis of fitting multiple leaf spring pieces and corresponding central holes, the assembling device can replace the operations of installing bolts and tightening nuts, avoiding the situation that the nuts fall off due to failure to be tightened when manually tightening the nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a side view of a leaf spring production and assembly device; Figure 2 It is a top view of a leaf spring production and assembly device; Figure 3 It is a front view of the feeding mechanism; Figure 4 It is an axonometric view of the leaf spring positioning assembly; Figure 5 It is an axonometric view of the nut tightening assembly; In the drawings, the list of components represented by each reference numeral is as follows: 1, assembling table; 2, support leg; 3, hole position adjusting assembly; 31, telescopic cylinder A; 32, pin shaft; 4, leaf spring positioning assembly; 40, sinking groove; 41, support plate; 42, through hole; 43, double-headed screw rod; 44, screw block; 45, round rod; 46, moving block; 47, retaining rod; 48, connecting rod; 49, driving motor A; 5, feeding assembly; 51, hopper; 52, material dividing column; 53, material dividing groove; 54, retaining block; 55, temporary storage block; 56, temporary storage groove; 57, stepping motor; 58, support frame; 59, telescopic cylinder C; 6, nut tightening assembly; 61, driving motor B; 62, guide rod; 63, clamping cylinder; 64, telescopic cylinder B; 71, hinge seat A; 72, clamping plate; 73, clamping block; 74, push rod; 75, hinge seat B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0018] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0019] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0022] Embodiment 1 As Figures 1-5 shown, the present invention provides a leaf spring production and assembly device, which has an assembly table 1. Support legs 2 are fixedly installed at the four corners of the bottom wall of the assembly table 1. Among them, a hole position adjustment component 3, a leaf spring positioning component 4, and a nut tightening component 6 are successively arranged on the assembly table 1 from front to back; The hole position adjustment component 3 includes a pin shaft 32 that moves longitudinally. The pin shaft 32 makes the center hole of the leaf spring piece drive the leaf spring to correspond; The leaf spring positioning component 4 includes a stop rod 47 that moves relatively on the front and rear sides. The stop rod 47 is used to clamp a plurality of leaf spring pieces; A clamp block 73 for clamping nuts is provided on the nut tightening component 6. The clamp block 73 is longitudinally slidably connected and rotatable relative to the assembly table 1; Two feeding components 5 that are vertically slidably connected are further provided on the assembly table 1. The two feeding components 5 are arranged to move following the stop rod 47 on the same side. The front feeding component 5 is used to install bolts, and the rear feeding component 5 is used to install nuts.

[0023] Optionally, in the above technical solution, the hole position adjusting assembly 3 includes a telescopic cylinder A31 fixedly installed on the assembly table 1. The movable end of the telescopic cylinder A31 extends backward, and a pin shaft 32 is fixedly installed at the end. The diameter of the rear end of the pin shaft 32 is slightly smaller than that of the front end.

[0024] Optionally, in the above technical solution, a sinking groove 40 is formed on the assembly table 1. The leaf spring positioning assembly 4 includes a support plate 41 fixedly installed in the middle of the sinking groove 40. Through holes 42 are formed at both the left and right ends of the support plate 41. A double-headed screw rod 43 is rotatably connected in the right through hole 42 through a bearing. Threaded blocks 44 are sleeved on both the front and rear ends of the double-headed screw rod 43 and are threadedly connected thereto. A driving motor A49 is fixedly installed inside the support plate 41 and at the rear end of the double-headed screw rod 43. The output shaft of the driving motor A49 extends forward and is connected to the rear end of the double-headed screw rod 43 through a coupling.

[0025] Optionally, in the above technical solution, a round rod 45 is fixedly connected in the left through hole 42. Moving blocks 46 are sleeved on both the front and rear ends of the round rod 45 and are slidably connected thereto. Blocking rods 47 are fixedly installed on the top walls of the threaded blocks 44 and the moving blocks 46. The threaded blocks 44 and the moving blocks 46 are fixedly connected through a connecting rod 48.

[0026] Optionally, in the above technical solution, the nut tightening assembly 6 includes a driving motor B61. The output shaft of the driving motor B61 extends forward, and a guide rod 62 is fixedly connected to the end. A clamping cylinder 63 is fixedly installed at the front end of the guide rod 62. The fixed end of a telescopic cylinder B64 is also fixedly installed on the assembly table 1. The movable end of the telescopic cylinder B64 extends forward, and the end is fixedly connected to the driving motor B61.

[0027] Optionally, in the above technical solution, hinge seats A71 are fixedly installed on both opposite sides of the clamping cylinder 63. The rear ends of the clamping plates 72 are hinged to the hinge seats A71 respectively. Clamping blocks 73 are fixedly installed on the opposite front surfaces of the front ends of the clamping plates 72. The outer ends of push rods 74 are hinged to the middle parts of the clamping plates 72 respectively. The inner ends of the push rods 74 are hinged to hinge seats B75 respectively. The hinge seats B75 are symmetrically fixedly installed on the piston rod of the clamping cylinder 63.

[0028] Optionally, in the above technical solution, the feeding assembly 5 includes a hopper 51 slidably connected vertically relative to the assembly table 1. A distributing column 52 is rotatably connected to the lower end of the hopper 51. A plurality of distributing grooves 53 are equidistantly formed on the circumference of the distributing column 52. A blocking block 54 fixedly installed on the hopper 51 is arranged on the circumferential surface of one side of the distributing groove 53.

[0029] Optionally, in the above technical solution, a temporary storage block 55 is fixedly installed on the bottom wall of the hopper 51, and a temporary storage groove 56 with the same size as the material distribution groove 53 is opened at the upper end of the temporary storage block 55.

[0030] The present invention provides an assembly method for a leaf spring production and assembly device, which includes the following steps: S1: Extend the movable end of the telescopic cylinder A31 to drive the pin shaft 32 to move backward. S2: Place the leaf spring sheet to be assembled on the support plate 41 and the sinking groove 40, and insert the central hole of the leaf spring sheet onto the pin shaft 32. S3: Move the front and rear retaining rods 47 inward simultaneously to hold the front and rear sides of the leaf spring sheet, preventing the leaf spring sheet from moving back and forth. S4: First, lower the rear-end feeding assembly 5 to feed the nuts. When a nut falls into the temporary storage groove 56, extend the movable end of the telescopic cylinder A31 again. The pin shaft 32 is inserted into the screw hole of the nut, and the nut is driven to move backward by the stepped pin shaft 32. S5: When the nut moves to the clamping cylinder 63, clamp the nut with the clamping block 73, fully retract the movable end of the telescopic cylinder A31, and raise the rear-end feeding assembly 5. S6: Lower the front-end feeding assembly 5 to feed the bolts. When a bolt falls into the temporary storage groove 56, extend the movable end of the telescopic cylinder A31 again to push the bolt into the central hole of the leaf spring sheet. At this time, the pin shaft 32 abuts against the bolt and remains stationary. S7: At this time, make the nut tightening assembly 6 drive the nut to move forward and rotate to tighten the nut on the bolt.

[0031] Furthermore, two inverted U-shaped support frames 58 are fixedly installed on the connecting rod 48 (the rear wall of the support frame 58 is installed on the front wall of the connecting rod 48). The fixed ends of two telescopic cylinders C59 are fixedly installed on the support frame 58. The movable ends of the telescopic cylinders C59 extend downward and are fixedly connected to the top wall of the hopper 51. When the movable ends of the telescopic cylinders C59 complete extension, the center lines of the temporary storage groove 56 and the pin shaft 32 are collinear.

[0032] Among them, the telescopic cylinder C59 drives the hopper 51 to move up and down, and can also adjust nuts and bolts with different diameters to make their central axes collinear.

[0033] Among them, the support plate 41 and the sinking groove 40 are at the same height; among them, the temporary storage groove 56 penetrates the front and rear walls of the temporary storage block 55; among them, the two clamping blocks 73 are symmetrically arranged with respect to the pin shaft 32.

[0034] Among them, the diameter of the rear end of the pin shaft 32 is slightly thinner, which can fit the inner diameter of the nut (i.e., the rear end diameter of the pin shaft 32 has a clearance fit with the inner diameter of the nut), and the diameter of the front end of the pin shaft 32 is slightly thicker, which can fit the inner diameter of the center hole of the leaf spring (i.e., the front end diameter of the pin shaft 32 has a clearance fit with the inner diameter of the center hole of the leaf spring).

[0035] Among them, the end face of the material distribution column 52 is close to the inner wall of the hopper 51 to prevent nuts or bolts from falling between the material distribution column 52 and the hopper 51.

[0036] The moving mode of the shift lever 47 is as follows: Start the drive motor A49 to make its output shaft rotate clockwise or counterclockwise, driving the double-headed screw 43 to rotate forward or backward), so that the screw blocks 44 on the front and rear sides move inwards or outwards simultaneously. Through the connecting rod 48, the moving block 46 makes the same movement on the round rod 45, so that the shift levers 47 on the front and rear sides approach or move away from each other simultaneously (wherein, the thread directions on the front and rear sides of the double-headed screw 43 are opposite, so the thread directions of the screw blocks 44 on the front and rear sides are also opposite).

[0037] The feeding method of nuts or bolts is as follows: Pour a batch of nuts or bolts with the same size into the hopper 51, start the stepping motor 57 to drive the material distribution column 52 to rotate clockwise (wherein, the axial length of the front-side material distribution groove 53 is slightly longer than the length of the bolt, which is convenient for the bolt to fall into the material distribution groove 53 in the longitudinal direction of the center line; the axial length of the rear-side material distribution groove 53 is slightly longer than the thickness of the nut, which is convenient for the nut to fall into the material distribution groove 53 in the longitudinal direction of the center line of the screw hole). The nuts and bolts rotate to the temporary storage block 55 through the baffle block 54, so that the lowermost nut or bolt falls into the temporary storage groove 56, and at this time, the stepping motor 57 stops rotating.

[0038] The clamping method of the nut is as follows: Make the movable end of the clamping cylinder 63 contract, drive the hinge seat B75 to move backward, and drive the clamping plates 72 to approach each other through the hinge between the hinge seat B75 and the clamping plates 72, so that the clamping blocks 73 approach each other until the nut is clamped.

[0039] The tightening method of the nut is as follows: Start the drive motor B61 to drive the guide rod 62 to rotate through its output shaft, so that the clamping blocks 73 on the clamping cylinder 63 rotate accordingly. At the same time, extend the movable end of the telescopic cylinder B64 to drive the clamping blocks 73 on the clamping cylinder 63 to move forward until the nut is screwed onto the bolt.

[0040] Furthermore, the clamping cylinder 63 adopts a cylinder with a rotary joint. Install the rotary joint at the fixed end of the cylinder, connect the air pipe to the stationary end, and keep the air pipe fixed through the rotary joint when the cylinder rotates to avoid winding; or adopt a rotary cylinder with an internal air pipe, integrate the air pipe channel inside the cylinder, and the air pipe passes through the center of the cylinder and rotates synchronously with the cylinder without external winding, such as a rotary cylinder.

[0041] Working principle: In the initial state, the distance between the front and rear shift levers 47 is at the maximum state. The front and rear feeding assemblies 5 are both at the highest end of the stroke. The movable end of the telescopic cylinder A31 is fully retracted, and the pin shaft 32 is at the forefront. The movable end of the telescopic cylinder B64 is fully retracted, and the nut tightening assembly 6 is at the rearmost end. The movable end of the clamping cylinder 63 is fully extended, and the distance between the two clamping blocks 73 is the largest. Position the leaf spring: Extend the movable end of the telescopic cylinder A31 to drive the pin shaft 32 to move backward (the position of the rear end of the pin shaft 32 does not exceed the position of the rear shift lever 47). The staff arranges the leaf spring pieces in order from long to short, and the concave surface of the leaf spring faces the rear end. Make the straight long side of the leaf spring piece contact the sinking groove 40 and the support plate 41. The side of the leaf spring piece with the mounting nut faces the nut tightening assembly 6, and the leaf spring piece is located between the front and rear shift levers 47. Insert the central hole of the leaf spring piece onto the pin shaft 32 so that the leaf spring piece cannot move left and right. Move the front and rear shift levers 47 inward simultaneously to hold the front and rear sides of the leaf spring piece, preventing the leaf spring piece from moving forward and backward (and move the pin shaft 32 to a position where the rear end slightly protrudes from the rearmost leaf spring piece to prevent affecting the feeding of the nut). Install the bolt and nut: First, lower the rear feeding assembly 5 to feed the nut. When a nut falls into the temporary storage groove 56, extend the movable end of the telescopic cylinder A31 again. The pin shaft 32 is inserted into the screw hole of the nut and drives the nut to move backward through the stepped pin shaft 32. When the nut moves to the clamping cylinder 63, clamp the nut with the clamping block 73, and fully retract the movable end of the telescopic cylinder A31. Then, raise the rear feeding assembly 5. Lower the front feeding assembly 5 to feed the bolt. When a bolt falls into the temporary storage groove 56, extend the movable end of the telescopic cylinder A31 again to push the bolt into the central hole of the leaf spring piece. At this time, make the pin shaft 32 abut against the bolt on the leaf spring, and the nut tightening assembly 6 drives the nut to move forward and rotate to tighten the nut on the bolt. Since the front feeding assembly 5 is installed on the front wall of the connecting rod 48, its temporary storage groove 56 is close to the convex surface of the leaf spring, and it can push the bolt onto the leaf spring.

[0042] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A leaf spring production and assembly device, having an assembly table (1), and support legs (2) are fixedly installed at the four corners of the bottom wall of the assembly table (1). It is characterized in that, On the assembly table (1), a hole position adjusting component (3), a leaf spring positioning component (4), and a nut tightening component (6) are arranged in sequence from front to back; The hole position adjusting component (3) includes a pin shaft (32) that moves longitudinally. The pin shaft (32) makes the center hole of the leaf spring drive the leaf spring to correspond; The leaf spring positioning component (4) includes a stop rod (47) that moves relatively on both the front and rear sides. The stop rod (47) is used to clamp a plurality of leaf spring pieces; On the nut tightening component (6), there is a clamp block (73) for clamping the nut. The clamp block (73) is longitudinally slidably connected and rotatable relative to the assembly table (1); On the assembly table (1), there are also two feeding components (5) that are vertically slidably connected. The two feeding components (5) move following the stop rod (47) on the same side. The front feeding component (5) is used to install bolts, and the rear feeding component (5) is used to install nuts.

2. The leaf spring production and assembly equipment according to claim 1, characterized in that, The hole position adjusting component (3) includes a telescopic cylinder A (31) fixedly installed on the assembly table (1). The movable end of the telescopic cylinder A (31) extends backward, and the pin shaft (32) is fixedly installed at the end. The diameter of the rear end of the pin shaft (32) is slightly smaller than that of the front end.

3. A leaf spring production and assembly device according to claim 1, characterized in that, A sinking groove (40) is formed on the assembly table (1). The leaf spring positioning component (4) includes a support plate (41) fixedly installed in the middle of the sinking groove (40). Through holes (42) are formed at both the left and right ends of the support plate (41); A double-headed screw rod (43) is rotatably connected in the right through hole (42) through a bearing. Threaded blocks (44) are sleeved on both the front and rear ends of the double-headed screw rod (43). A driving motor A (49) is fixedly installed inside the support plate (41) and at the rear end of the double-headed screw rod (43). The vertical shaft of the driving motor A (49) extends forward and is connected to the rear end of the double-headed screw rod (43) through a coupling.

4. A leaf spring production and assembly device according to claim 3, wherein, A round rod (45) is fixedly connected in the left through hole (42). Moving blocks (46) are sleeved on both the front and rear ends of the round rod (45) and are slidably connected thereto; Stop rods (47) are fixedly installed on the top walls of the threaded blocks (44) and the moving blocks (46). The threaded blocks (44) and the moving blocks (46) are fixedly connected through a connecting rod (48).

5. A leaf spring production and assembly device according to claim 1, characterized in that, The nut tightening component (6) includes a driving motor B (61). The output shaft of the driving motor B (61) extends forward, and a guide rod (62) is fixedly connected to the end. A clamping cylinder (63) is fixedly installed at the front end of the guide rod (62); The fixed end of a telescopic cylinder B (64) is also fixedly installed on the assembly table (1). The movable end of the telescopic cylinder B (64) extends forward, and the end is fixedly connected to the driving motor B (61).

6. The leaf spring production and assembly equipment according to claim 5, characterized in that, Hinge seats A (71) are fixedly installed on both opposite sides of the clamping cylinder (63). The rear ends of the hinge seats A (71) are hinged to the rear ends of the clamping plates (72). Clamp blocks (73) are fixedly installed on the opposite front surfaces of the front ends of the clamping plates (72); The outer ends of push rods (74) are hinged to the middle parts of the clamping plates (72), and the inner ends of the push rods (74) are hinged to hinge seats B (75). The hinge seats B (75) are symmetrically and fixedly mounted on the piston rods of the clamping cylinders (63).

7. A leaf spring production and assembly device according to claim 1, characterized in that, The feeding assembly (5) includes a hopper (51) that is vertically slidably connected to the assembly table (1). A material distributing column (52) is rotatably connected to the lower end of the hopper (51). A plurality of material distributing grooves (53) are equidistantly formed on the circumference of the material distributing column (52). A stop block (54) fixedly mounted on the hopper (51) is provided on the circumferential surface of one side of the material distributing groove (53).

8. A leaf spring production and assembly device according to claim 7, characterized in that, A temporary storage block (55) is fixedly mounted on the bottom wall of the hopper (51). A temporary storage groove (56) having the same size as the material distributing groove (53) is formed at the upper end of the temporary storage block (55).

9. A method for manufacturing and assembling a leaf spring, characterized in that, It includes the following steps: S1: Extend the movable end of the telescopic cylinder A (31) to drive the pin shaft (32) to move backward; S2: Place the leaf spring to be assembled on the support plate (41) and the sinking groove (40), and insert the center hole of the leaf spring onto the pin shaft (32); S3: Move the front and rear stop rods (47) inward simultaneously to abut against the front and rear sides of the leaf spring, so that the leaf spring cannot move forward and backward; S4: First, lower the rear-end feeding assembly (5) to feed nuts. When a nut falls into the temporary storage groove (56), extend the movable end of the telescopic cylinder A (31) again. The pin shaft (32) is inserted into the screw hole of the nut, and the nut is driven to move backward by the stepped pin shaft (32); S5: When the nut moves to the clamping cylinder (63), clamp the nut with the clamp block (73), fully retract the movable end of the telescopic cylinder A (31), and raise the rear-end feeding assembly (5); S6: Lower the front-end feeding assembly (5) to feed bolts. When a bolt falls into the temporary storage groove (56), extend the movable end of the telescopic cylinder A (31) again to push the bolt into the center hole of the leaf spring. At this time, the pin shaft (32) abuts against the bolt and remains stationary; S7: At this time, drive the nut to move forward and rotate by the nut tightening assembly (6) to tighten the nut on the bolt.

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