A heating device for plate spring production

Abstract

The utility model provides a kind of heating device for plate spring production, belong to plate spring processing technical field, the heating device for plate spring production has furnace body, the front of furnace body is connected with door plate by hinge, the both sides of furnace body are equipped with heating block;Fixed mounting is equipped with support seat in furnace body, the upper side of support seat is distributed with multiple lower frames in circle array, lower frame is used to drive plate spring raw material rotation, lower frame is in the shape of letter "U";The middle part of support seat is connected with gear A by bolt, gear A is engaged and connected with multiple gear B, multiple gear B and multiple lower frame vertical correspondence;The upper side of support seat is equipped with the connecting frame of rotary connection, gear B is rotatably connected on connecting frame;The utility model is used to solve the technical problem that the position of plate spring relative to heating block is fixed when the plate spring of existing plate spring is heated, and heating block is not convenient for making plate spring uniform heat on both sides of furnace body.

Description

Technical Field

[0001] This utility model belongs to the field of leaf spring processing technology, and specifically relates to a heating device for leaf spring production. Background Technology

[0002] Leaf springs are usually curved, so during processing, the flat leaf spring raw materials (such as spring steel) need to be processed into a specific curvature. Heating can increase the temperature of the steel and reduce its hardness, making it easier to bend and forge into the required shape without having to bend it and cause the steel to break. Application No.: CN201821918483.3 (Announcement No.: CN209368328U) discloses a heat treatment furnace for automotive leaf springs, including a furnace body, an insertion hole, a control rod, a heating block, a blower, and a door panel. A partition plate is provided in the middle of the interior of the furnace body, and a movable plate is provided in the middle of the partition plate. A rotating shaft is provided in the middle of the movable plate, and the rotating shaft passes through the movable plate and the partition plate. Support plates are provided on both sides above the movable plate, and a telescopic rod is provided on the inner side of the support plate. A frame is provided on the inner side of the telescopic rod, and a fixed plate is provided inside the frame. The outer side of the fixed plate is connected to the frame by a spring. The aforementioned patent is not convenient for heating multiple leaf springs, and the leaf springs are fixed in position relative to the heating block. The heating block is located on both sides of the furnace body, which makes it difficult to heat the leaf springs evenly. Utility Model Content

[0003] In view of this, the present invention provides a heating device for leaf spring production, which solves the technical problems of existing leaf spring heating, such as the inconvenience of heating multiple leaf springs, the fixed position of the leaf springs relative to the heating block, and the inconvenience of the leaf springs being heated evenly when the heating block is located on both sides of the furnace body.

[0004] This utility model is implemented as follows: This utility model provides a heating device for leaf spring production, which has a furnace body, a door panel connected to the front of the furnace body by a hinge, and heating blocks on both sides of the furnace body; The furnace body is fixedly installed with a support base, and multiple lower frames are arranged in a circular array above the support base. The lower frames are used to drive the leaf spring raw material to rotate, and the lower frames are in the shape of the letter "U".

[0005] Based on the above technical solution, the heating device for producing leaf springs according to this utility model can be further improved as follows: Furthermore, a gear A is bolted to the middle of the support base, and multiple gears B are meshed on the gear A, with the multiple gears B corresponding vertically to the multiple lower frames; The support base is provided with a rotatably connected connecting frame above it, and the gear B is rotatably connected to the connecting frame.

[0006] Furthermore, a rotating shaft is rotatably connected to the middle of the furnace body, the rotating shaft passes through the gear A and is fixedly connected to the middle of the bottom wall of the connecting frame.

[0007] Furthermore, each gear B is fixedly mounted with a lower connecting rod, which passes through the connecting frame and is rotatably connected to it. The upper end of the lower connecting rod is fixedly connected to the bottom wall of the horizontal plate of the lower frame.

[0008] Furthermore, an upper frame is provided above the lower frame. The upper frame is in the shape of an inverted "U". An upper connecting rod is fixedly installed in the middle of the top wall of the upper frame. The upper connecting rod is rotatably connected to the top plate.

[0009] Furthermore, the top plate is rotatably connected to a threaded sleeve at its center, the threaded sleeve is threadedly connected to a threaded rod, and the threaded rod is fixedly installed at the center of the top wall of the connecting frame.

[0010] Compared with the prior art, the beneficial effects of the heating device for leaf spring production provided by this utility model are: by setting gear A, gear B, etc., the lower connecting rod can drive the lower frame to rotate and revolve. By driving the leaf spring to move through the revolution and realizing the rotation of the leaf spring itself, multiple leaf springs can move to contact the heat source at different positions through the revolution and make each surface evenly stressed and face the heat source in sequence through the rotation within the same processing cycle. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 A front view of a heating device for producing leaf springs; Figure 2 This is an isometric view of the support base; Figure 3 An axonometric view of the interior of the support base; Figure 4 The attached figure shows an isometric view of the structure below the connecting frame. The components represented by each number in the figure are listed below: 1. Furnace body; 11. Heating block; 21. Lower frame; 22. Spring; 23. Fixing plate; 301. First motor; 31. Support base; 32. Gear A; 33. Connecting frame; 34. Gear B; 35. Rotating shaft; 36. Lower connecting rod; 37. Support plate A; 38. Support plate B; 41. Upper frame; 42. Upper connecting rod; 43. Top plate; 44. Guide rod; 45. Threaded sleeve; 46. Threaded rod; 51. Column; 52. Pulley. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] 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 to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] Example 1 like Figures 1-4 As shown, this utility model provides a heating device for leaf spring production, which has a furnace body 1, a door panel connected to the front of the furnace body 1 by a hinge, and heating blocks 11 on both sides of the furnace body 1. The furnace body 1 is fixedly installed with a support base 31. Above the support base 31, multiple lower frames 21 are arranged in a circular array. The lower frames 21 are used to drive the leaf spring raw material to rotate. The lower frames 21 are in the shape of the letter "U".

[0019] Optionally, in the above technical solution, a gear A32 is bolted to the middle of the support base 31, and multiple gears B34 are meshed on the gear A32, with the multiple gears B34 vertically corresponding to multiple lower frames 21. A rotatably connected connecting frame 33 is provided above the support base 31, and a gear B34 is rotatably connected to the connecting frame 33.

[0020] Optionally, in the above technical solution, a rotating shaft 35 is rotatably connected to the middle of the furnace body 1. The rotating shaft 35 passes through the gear A32 and is fixedly connected to the middle of the bottom wall of the connecting frame 33.

[0021] Optionally, in the above technical solution, a lower connecting rod 36 is fixedly installed on each gear B34. The lower connecting rod 36 passes through the connecting frame 33 and is rotatably connected to it. The upper end of the lower connecting rod 36 is fixedly connected to the bottom wall of the horizontal plate of the lower frame 21.

[0022] Optionally, in the above technical solution, an upper frame 41 is provided above the lower frame 21. The upper frame 41 is in the shape of an inverted "U". An upper connecting rod 42 is fixedly installed in the middle of the top wall of the upper frame 41. The upper connecting rod 42 is rotatably connected to the top plate 43.

[0023] Optionally, in the above technical solution, the middle part of the top plate 43 is rotatably connected to the threaded sleeve 45, the threaded sleeve 45 is threadedly connected to the threaded rod 46, and the threaded rod 46 is fixedly installed in the middle of the top wall of the connecting frame 33.

[0024] Among them, the rotating shaft 35, the connecting frame 33, and the gear A32 are arranged concentrically.

[0025] Furthermore, multiple sets of support components arranged in a circular array are provided below the connecting frame 33, including a column 51 fixed on the bottom wall of the connecting frame 33, and a pulley 52 rotatably mounted on the bottom end of the column 51, the pulley 52 being slidably connected to the inner top wall of the support base 31; wherein, at least two sets of support components are provided, arranged symmetrically, preferably, a set of support components is provided between two adjacent gears B34, and the column 51 is located outside the gear A32.

[0026] Furthermore, a first motor 301 is fixedly installed inside the furnace body 1, and the output shaft of the first motor 301 is connected to the lower end of the rotating shaft 35; wherein, the input end of the first motor 301 can be electrically connected to the output end of the controller of the processing equipment, and the first motor 301 is a geared motor.

[0027] The support base 31 is fixed inside the furnace body 1 by the support plate A37, and the first motor 301 is fixed inside the furnace body 1 by the support plate B38.

[0028] Furthermore, two through holes are provided on the top plate 43, and a guide rod 44 is vertically slidably connected in the through holes. The bottom wall of the guide rod 44 is fixedly installed on the connecting frame 33. The height of the upper top plate 43 can be adjusted by using the threaded sleeve 45 and the threaded rod 46 to accommodate leaf spring materials of various lengths. By setting the guide rod 44, the top plate 43, which is rotatably connected to the threaded sleeve 45, can only move vertically and will not rotate, and the upper frame 41 follows the corresponding lower frame 21 to rotate.

[0029] Furthermore, one end of a spring 22 is fixedly installed on the inner wall of the vertical plate of both the upper frame 41 and the lower frame 21, and the other end of the spring 22 is fixedly installed on the fixed plate 23. Dovetail grooves are provided on the top wall of the lower frame 21 and the bottom wall of the upper frame 41. Dovetail blocks are fixedly installed on the bottom wall of the lower fixing plate 23 and the top wall of the upper fixing plate 23. The dovetail blocks are slidably connected in the corresponding dovetail grooves to prevent the fixing plate 23 from shifting. By setting spring 22, it is easy to adapt to leaf spring materials of various widths.

[0030] When in use, the first motor 301 is started so that its output shaft drives the rotating shaft 35 to rotate in place, thereby causing the connecting bracket 33 fixed thereto to rotate in place; The lower connecting rod 36, which is rotatably connected to the connecting frame 33, moves with the connecting frame 33, that is, it rotates around the central axis of the rotating shaft 35 and revolves around it. At the same time, gear B34 meshes with gear A32. Gear B34 follows and rotates in place around its own central axis, thus rotating. Then, the lower connecting rod 36 causes the lower frame 21 fixed to it to rotate and revolve, causing the leaf spring to rotate inside the furnace body 1. The leaf spring raw material is placed as follows: the lower end is inserted between the two fixing plates 23 of a lower frame 21, and the upper end is inserted between the two fixing plates 23 of the corresponding upper frame 41, and clamped by the elastic force of the spring; the height of the upper frame 41 is adjusted according to the height of the leaf spring so that the upper frame 41 and the lower frame 21 abut against the top wall and bottom wall of the leaf spring respectively. The height of the upper frame 41 is adjusted by turning the threaded sleeve 45 to rotate it in place and move it up and down along the threaded rod 46. Under the action of the guide rod 44, the top plate 43 moves vertically, thereby adjusting the height of the upper frame 41.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heating device for producing leaf springs, comprising a furnace body (1), wherein a door panel is connected to the front of the furnace body (1) via a hinge, and heating blocks (11) are provided on both sides of the furnace body (1); Its features are, A support base (31) is fixedly installed inside the furnace body (1). Multiple lower frames (21) are arranged in a circular array above the support base (31). The lower frames (21) are used to drive the leaf spring raw material to rotate. The lower frames (21) are in the shape of the letter "U".

2. The heating device for leaf spring production according to claim 1, characterized in that, The middle part of the support base (31) is connected to a gear A (32) by bolts. Multiple gears B (34) are meshed on the gear A (32). The multiple gears B (34) are vertically corresponding to the multiple lower frames (21). The support base (31) is provided with a rotatably connected connecting frame (33), and the gear B (34) is rotatably connected to the connecting frame (33).

3. The heating device for leaf spring production according to claim 2, characterized in that, A rotating shaft (35) is rotatably connected to the middle of the furnace body (1). The rotating shaft (35) passes through the gear A (32) and is fixedly connected to the middle of the bottom wall of the connecting frame (33).

4. A heating device for leaf spring production according to claim 3, characterized in that, Each gear B (34) is fixedly mounted with a lower connecting rod (36). The lower connecting rod (36) passes through the connecting frame (33) and is rotatably connected to it. The upper end of the lower connecting rod (36) is fixedly connected to the bottom wall of the horizontal plate of the lower frame (21).

5. A heating device for leaf spring production according to claim 4, characterized in that, An upper frame (41) is provided above the lower frame (21). The upper frame (41) is in the shape of an inverted "U". An upper connecting rod (42) is fixedly installed in the middle of the top wall of the upper frame (41). The upper connecting rod (42) is rotatably connected to the top plate (43).

6. A heating device for producing leaf springs according to claim 5, characterized in that, The top plate (43) is rotatably connected to the threaded sleeve (45) at its center. The threaded sleeve (45) is threadedly connected to the threaded rod (46), and the threaded rod (46) is fixedly installed in the center of the top wall of the connecting frame (33).

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