Plate spring variable cross-section device

Abstract

The utility model provides a leaf spring variable cross-section device, which belongs to the technical field of leaf spring processing, the leaf spring variable cross-section device is provided with a bottom plate and a top plate, the bottom plate and the top plate are respectively and fixedly provided with a rear die holder and a die frame which are arranged in a mirroring way, and two arc-shaped clamping plates are arranged between the two die frames and are respectively positioned at the front ends of the two rear die holders; an adjusting assembly for adjusting the radian of the arc-shaped clamping plate is arranged in the rear mold base, the adjusting assembly comprises a threaded sleeve, a double-thread screw and an adjusting wheel, and a supporting assembly for supporting the arc-shaped clamping plate is arranged on the mold frame; the bottom end of the rear wall of the arc-shaped clamping plate is fixedly installed on the rear mold base through a connecting column, sliding rods are fixedly installed on the two sides of the rear wall of the arc-shaped clamping plate, sliding grooves are formed in the positions, corresponding to the sliding rods, of the front wall of the rear mold base, and adjusting grooves communicating with the sliding grooves are formed in the rear mold base; according to the utility model, the technical problem of inconvenience in use due to the need of preparing various types of molds during use is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of leaf spring processing, and in particular relates to a leaf spring variable cross-section device. Background Art

[0002] Automobile leaf spring is the most traditional elastic element in automobile suspension system. It is widely used due to its good reliability, simple structure, short manufacturing process and low cost.

[0003] The Chinese utility model application number: CN201821916257.1 (publication number: CN209061895U) discloses an integrated device for rolling and processing variable-section automobile leaf springs. By loosening the first bolt, the leaf spring mold can be removed and replaced with a different type of leaf spring mold. By removing the second bolt, the upper mold can be removed and replaced with the upper mold corresponding to the leaf spring mold, thereby achieving the purpose of facilitating the change of the curvature of the pressed leaf spring.

[0004] The above patent changes the curvature of the pressed leaf spring by replacing different types of upper molds and leaf spring molds. Therefore, when using the device of the above patent, it is necessary to prepare multiple types of molds. If the types of molds are not complete, the curvature of the pressed leaf spring cannot be changed arbitrarily, resulting in inconvenience during use. Utility Model Content

[0005] In view of this, the utility model provides a leaf spring variable cross-section device, which is used to solve the technical problem that when using the device of the above patent, multiple types of molds need to be prepared, resulting in inconvenience during use.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a leaf spring variable cross-section device, comprising a bottom plate, on which a fixed end of a telescopic rod is fixedly mounted, and on which a top plate is fixedly mounted the movable end of the telescopic rod, wherein a rear die seat and a die frame arranged in mirror image are fixedly mounted on both the bottom plate and the top plate, and two arc-shaped clamping plates are arranged between the two die frames and respectively located at the front ends of the two rear die seats;

[0008] An adjusting component for adjusting the curvature of the arc-shaped clamping plate is provided in the rear mold base, and the adjusting component includes a threaded sleeve, a double-headed screw and an adjusting wheel. A supporting component for supporting the arc-shaped clamping plate is provided on the mold frame;

[0009] The bottom end of the rear wall of the arc-shaped splint is fixedly mounted on the rear mold base via a connecting column, sliding rods are fixedly mounted on both sides of the rear wall of the arc-shaped splint, sliding grooves are provided at positions corresponding to the sliding rods on the front wall of the rear mold base, and an adjustment groove connected to the sliding groove is provided inside the rear mold base.

[0010] On the basis of the above technical solution, the variable cross-section device of a leaf spring of the utility model can also be improved as follows:

[0011] Furthermore, the threaded sleeve is fixedly installed on the sliding rod, the double-headed screw is rotatably connected in the adjustment groove, the threaded sleeve is threadedly connected to the circumferential surface of the threaded sleeve, and the adjusting wheel is fixedly installed on one end of the double-headed screw.

[0012] Furthermore, the support assembly includes a plurality of through holes formed on the mold frame, and through grooves are formed on the sides of the two mold frames that are away from each other, and screws are slidably connected in the through holes.

[0013] Furthermore, one end of the screw rod located in the through slot is threadedly connected to a fastening nut, one end of the screw rod away from the through slot is fixedly connected to the inner wall of the bearing, and a support cylinder is fixedly installed on one side of the bearing away from the screw rod.

[0014] Furthermore, a rotating cylinder is fixedly mounted on one end of the support cylinder away from the bearing, and a rotating shaft is rotatably mounted on the inner wall of the rotating cylinder.

[0015] Furthermore, a fixing rod is fixedly mounted on a side of the rotating shaft away from the screw rod, and a side of the fixing rod away from the rotating shaft is fixedly mounted on the arc-shaped clamping plate.

[0016] Compared with the prior art, the beneficial effects of the leaf spring variable cross-section device provided by the utility model are:

[0017] By setting the adjusting component, the curvature of the arc-shaped clamping plate is adjusted so as to adapt to the processing of different types of leaf springs. By setting the supporting component, the arc-shaped clamping plate is prevented from being deformed when the leaf spring is pressed.

[0018] By setting a through hole, the screw can only move up and down along the central axis of the through hole; by setting a fastening nut, the screw is limited; by setting a rotating cylinder and a fixing rod, the support assembly and the arc splint are better fitted without limiting the curvature range of the arc splint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front view of the overall structure of a leaf spring variable cross-section device;

[0021] Figure 2 for Figure 1 Partial magnified image;

[0022] Figure 3 A top view of a rear die base of a leaf spring variable cross-section device;

[0023] Figure 4 It is an axonometric view of an arc-shaped clamping plate of a leaf spring variable cross-section device;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Bottom plate; 10. Telescopic rod; 2. Rear mold base; 20. Arc clamping plate; 21. Sliding rod; 22. Sliding groove; 23. Threaded sleeve; 24. Double-headed screw; 25. Adjusting wheel; 26. Adjusting groove; 27. Connecting column; 3. Top plate; 4. Mold frame; 40. Through hole; 41. Screw; 42. Bearing; 43. Support cylinder; 44. Rotating cylinder; 45. Rotating shaft; 46. Fixed rod; 47. Fastening nut; 48. Through groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0031] like Figure 1-4 As shown, the utility model provides a leaf spring variable cross-section device, comprising a bottom plate 1, on which a fixed end of a telescopic rod 10 is fixedly mounted, and on which a top plate 3 is fixedly mounted the movable end of the telescopic rod 10, wherein a rear die base 2 and a die frame 4 arranged in mirror image are fixedly mounted on both the bottom plate 1 and the top plate 3, and two arc-shaped clamping plates 20 are arranged between the two die frames 4 and respectively located at the front ends of the two rear die bases 2;

[0032] An adjusting assembly for adjusting the curvature of the arc-shaped clamping plate 20 is provided in the rear mold base 2, and the adjusting assembly includes a threaded sleeve 23, a double-headed screw 24 and an adjusting wheel 25. A supporting assembly for supporting the arc-shaped clamping plate 20 is provided on the mold frame 4;

[0033] The bottom end of the rear wall of the arc-shaped splint 20 is fixedly mounted on the rear mold base 2 through a connecting column 27. Sliding rods 21 are fixedly mounted on both sides of the rear wall of the arc-shaped splint 20. A sliding groove 22 is provided at a position corresponding to the sliding rod 21 on the front wall of the rear mold base 2. An adjustment groove 26 connected to the sliding groove 22 is provided inside the rear mold base 2.

[0034] The thread directions of the two threaded sleeves 23 are opposite, that is, they are respectively matched with the threads on the double-headed screw 24 at their respective positions.

[0035] The adjusting wheel 25 penetrates through the side wall of the rear mold base 2 and is rotatably connected thereto.

[0036] The sizes of the upper and lower rear mold bases 2 or mold frames 4 can be adjusted differently according to actual conditions.

[0037] Optionally, in the above technical solution, a threaded sleeve 23 is fixedly installed on the sliding rod 21, a double-headed screw 24 is rotatably connected in the adjustment groove 26, the threaded sleeve 23 is threadedly connected to the circumferential surface of the threaded sleeve 23, and an adjusting wheel 25 is fixedly installed on one end of the double-headed screw 24.

[0038] Optionally, in the above technical solution, the support assembly includes a plurality of through holes 40 formed on the mold frame 4 , through grooves 48 are formed on the sides of the two mold frames 4 that are away from each other, and screws 41 are slidably connected in the through holes 40 .

[0039] Optionally, in the above technical solution, one end of the screw 41 located in the through slot 48 is threadedly connected to a fastening nut 47, and the end of the screw 41 away from the through slot 48 is fixedly connected to the inner wall of the bearing 42, and a support tube 43 is fixedly installed on the side of the bearing 42 away from the screw 41.

[0040] Optionally, in the above technical solution, a rotating cylinder 44 is fixedly mounted on one end of the supporting cylinder 43 away from the bearing 42 , and a rotating shaft 45 is rotatably mounted on the inner wall of the rotating cylinder 44 .

[0041] Optionally, in the above technical solution, a fixing rod 46 is fixedly mounted on a side of the rotating shaft 45 away from the screw rod 41 , and a side of the fixing rod 46 away from the rotating shaft 45 is fixedly mounted on the arc-shaped clamping plate 20 .

[0042] Working principle:

[0043] When the cross section of the leaf spring needs to be adjusted, firstly, the fastening nut 47 is screwed to the end of the screw rod 41 away from the bearing 42, and the limit of the screw rod 41 is cancelled, so that the screw rod 41 can slide in the mold frame 4. Then, the adjusting wheel 25 is manually turned to rotate the double-headed screw rod 24 to drive the two threaded sleeves 23 to move closer to each other, so that the two sliding rods 21 can slide in opposite directions in the sliding groove 22. Then, the distance between the two ends of the arc clamping plate 20 can be adjusted to adjust the curvature of the arc clamping plate 20.

[0044] When adjusting the curvature, the fixing rod 46 fixed on the arc clamping plate 20 can make the rotating cylinder 44 move the rotating shaft 45 to rotate, and push or pull the supporting cylinder 43, so that the screw 41 moves up and down in the mold frame 4 following the curvature of the arc clamping plate 20;

[0045] When the curvature is adjusted, tighten the fastening nut 47 until it contacts the screw 41 to limit the screw 41. Then place the leaf spring to be processed on the arc-shaped clamping plate 20 at the lower end, and move the top plate 3 downward so that the arc-shaped clamping plate 20 at the upper end and the arc-shaped clamping plate 20 at the lower end can suppress the curvature of the leaf spring.

[0046] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A leaf spring variable cross-section device, comprising a bottom plate (1), on which a fixed end of a telescopic rod (10) is fixedly mounted, and on which a top plate (3) is fixedly mounted on a movable end of the telescopic rod (10), characterized in that: The bottom plate (1) and the top plate (3) are both fixedly mounted with a rear mold base (2) and a mold frame (4) arranged in a mirror image, and two arc-shaped clamping plates (20) are arranged between the two mold frames (4) and respectively located at the front ends of the two rear mold bases (2); An adjusting component for adjusting the curvature of the arc-shaped clamping plate (20) is provided in the rear mold base (2), the adjusting component comprising a threaded sleeve (23), a double-headed screw (24) and an adjusting wheel (25), and a supporting component for supporting the arc-shaped clamping plate (20) is provided on the mold frame (4); The bottom end of the rear wall of the arc-shaped clamping plate (20) is fixedly mounted on the rear mold base (2) via a connecting column (27); sliding rods (21) are fixedly mounted on both sides of the rear wall of the arc-shaped clamping plate (20); a sliding groove (22) is provided at a position corresponding to the sliding rod (21) on the front wall of the rear mold base (2); and an adjusting groove (26) connected to the sliding groove (22) is provided inside the rear mold base (2).

2. A leaf spring variable cross-section device according to claim 1, characterized in that: The threaded sleeve (23) is fixedly mounted on the sliding rod (21), the double-headed screw (24) is rotatably connected in the adjusting groove (26), the threaded sleeve (23) is threadedly connected to the circumferential surface of the threaded sleeve (23), and the adjusting wheel (25) is fixedly mounted on one end of the double-headed screw (24).

3. A leaf spring variable cross-section device according to claim 1, characterized in that: The support assembly comprises a plurality of through holes (40) provided on the mold frame (4), a through groove (48) being provided on the side away from each other of the two mold frames (4), and a screw rod (41) being slidably connected in each of the through holes (40).

4. A leaf spring variable cross-section device according to claim 3, characterized in that: One end of the screw rod (41) located in the through groove (48) is threadedly connected to a fastening nut (47), and one end of the screw rod (41) away from the through groove (48) is fixedly connected to the inner wall of the bearing (42), and a support cylinder (43) is fixedly installed on the side of the bearing (42) away from the screw rod (41).

5. A leaf spring variable cross-section device according to claim 4, characterized in that: A rotating cylinder (44) is fixedly mounted on one end of the support cylinder (43) away from the bearing (42), and a rotating shaft (45) is rotatably mounted on the inner wall of the rotating cylinder (44).

6. A leaf spring variable cross-section device according to claim 5, characterized in that: A fixing rod (46) is fixedly mounted on the side of the rotating shaft (45) away from the screw rod (41), and the side of the fixing rod (46) away from the rotating shaft (45) is fixedly mounted on the arc-shaped clamping plate (20).

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