A plate spring reed center hole processing device convenient for positioning

Abstract

This utility model relates to the field of steel leaf spring production and processing technology, and specifically discloses a leaf spring center hole processing device that facilitates positioning. It includes an upper template with a center hole punching mechanism and a leaf spring clamping mechanism fixedly connected to it, and a lower template with a leaf spring centering limiting mechanism fixedly connected to it. The leaf spring centering limiting mechanism includes a punching die fixedly connected to the lower template and aligned with the center hole punching mechanism, a horizontal platform fixedly connected to the lower template and symmetrically arranged on both sides of the punching die, an end limiting plate symmetrically slidably connected to the horizontal platform, and a leaf spring clamping mechanism arranged on the end limiting plate. A first driving mechanism is provided on the horizontal platform. The leaf spring clamping mechanism includes a slide symmetrically slidably connected to the inner side of the end limiting plate, an end abutment plate arranged on the slide, a clamping member arranged on one side of the slide for clamping the leaf spring, and a second driving mechanism. This solves the problem that traditional leaf spring center hole processing devices do not have the function of independently adjusting the position of the leaf spring in the length direction.

Description

Technical Field

[0001] This application relates to the field of steel leaf spring production and processing technology, and specifically discloses a device for processing the center hole of a leaf spring leaf that facilitates positioning. Background Technology

[0002] Automotive leaf springs are the most traditional elastic elements in automotive suspension systems. They are generally composed of several alloy spring steel leaves of unequal length, forming a spring beam that approximates the strength of the spring.

[0003] The processing route for leaf springs is as follows: blanking, straightening, drilling, lug rolling, quenching + medium-temperature tempering, shot peening, assembly, and compression. During the blanking and straightening process, the leaf springs also need to be hot-rolled, and then the hot-rolled leaf springs are stacked for cooling.

[0004] Drilling the leaf spring can only be done after it has cooled down. In existing technology, such as the hot-punching center hole mold on a leaf spring hot rolling production line (Chinese Patent Publication No. CN207386307U), there are upper and lower templates, a leaf spring centering and limiting mechanism, a leaf spring clamping mechanism, and a center hole punching mechanism. The center hole punching mechanism is fixed on the upper template, and the leaf spring centering and limiting mechanism is fixed on the lower template. A leaf spring clamping mechanism is located between the center hole punching mechanism and the leaf spring centering and limiting mechanism. Although the above solution includes a leaf spring centering and limiting mechanism and a leaf spring clamping mechanism to adjust the leaf spring position and clamp it vertically, it still requires an external gate to fix the end of the leaf spring during use. When punching, the position of the leaf spring in the length direction needs to be adjusted by the gate's blade; it does not have the function of independently adjusting the leaf spring's position in the length direction.

[0005] This invention provides a device for machining the center hole of a leaf spring sheet that facilitates positioning, in order to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem that traditional leaf spring center hole processing devices do not have the function of independently adjusting the position of the leaf spring in the length direction.

[0007] To achieve the above objectives, the basic solution of this utility model provides a device for machining the center hole of a leaf spring sheet that facilitates positioning, comprising:

[0008] The upper template is fixedly connected to a center hole punching mechanism and a leaf spring clamping mechanism;

[0009] The lower template is fixedly connected to a leaf spring centering and limiting mechanism;

[0010] The leaf spring clamping mechanism is located between the center hole punching mechanism and the leaf spring centering and limiting mechanism;

[0011] The leaf spring centering and limiting mechanism includes a punching die fixed to the lower template and aligned with the center hole of the punching mechanism, a cross platform fixed to the lower template and symmetrically arranged on both sides of the punching die, an end limiting plate symmetrically slidably connected to the cross platform, and a leaf spring clamping mechanism arranged on the end limiting plate. The cross platform is provided with a first driving mechanism for driving the end limiting plate to slide. The leaf spring clamping mechanism includes a slide table symmetrically slidably connected to the inner side of the end limiting plate and at the same height as the punching die, an end abutment plate arranged on the slide table, a clamping member arranged on one side of the slide table for clamping the leaf spring, and a second driving mechanism arranged on the end limiting plate for driving the slide tables on both sides to slide towards each other.

[0012] Furthermore, the cross platform is symmetrically provided with a sliding groove, and the bottom end of the end limiting plate is fixedly connected to a connecting platform that is slidably connected in the sliding groove. The driving mechanism includes a threaded rod that is rotatably connected to the inner end of the sliding groove and passes through the connecting platform, and a handle that is fixedly connected to the free end of the threaded rod. The connecting platform is provided with an internal threaded hole for the threaded rod to pass through and be threadedly connected to it.

[0013] Furthermore, the end plate is fixed to the top surface of the slide table on the side away from the punching die.

[0014] Furthermore, the end plate is fixed to the middle position on the top surface of the slide away from the punching die.

[0015] Furthermore, an exhibition platform is fixedly connected inward to the outer end of the slide, and the clamping member is provided on the exhibition platform.

[0016] Furthermore, the clamping member is slidably connected to the display stand, and the clamping member includes a column slidably connected to the display stand and a truncated cone with a gradually increasing diameter fixed to the column.

[0017] Furthermore, the second driving mechanism includes a bidirectional lead screw with positive and negative teeth rotatably connected between the two ends of the end limiting plate and a drive motor fixed to one end of the end limiting plate for driving the bidirectional lead screw with positive and negative teeth to rotate. The slide has two internal thread holes that are threadedly connected to the bidirectional lead screw with positive and negative teeth.

[0018] The principle and effect of this solution are as follows:

[0019] Compared with the prior art, this utility model uses a slide table that can slide in opposite directions to drive the end plates and the clamping parts to slide against each other, which can achieve the purpose of tensioning the leaf spring. The position of the end limiting plate can be adjusted by the drive mechanism, thereby adjusting the distance between the end plates to make adjustments according to leaf springs of different lengths, and thus playing the role of positioning leaf springs of different lengths. This solves the problem that traditional leaf spring center hole processing devices do not have the function of independently adjusting the position of the leaf spring in the length direction. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This paper shows a front view of a device for machining the center hole of a leaf spring according to an embodiment of this application, which facilitates positioning.

[0022] Figure 2 A side view of a leaf spring center hole machining apparatus according to an embodiment of this application is shown;

[0023] Figure 3 A top view of a leaf spring center hole machining apparatus according to an embodiment of this application is shown. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] The reference numerals in the accompanying drawings include: lower template 1, guide shaft 2, support column 3, punch 4, crossbeam 5, double-sided lead screw with positive and negative threads 6, drive motor 7, slide table 8, cone 9, end stop plate 10, punching die 11, punching hole 12, display stand 13, handle 14, connecting table 15.

[0026] A device for machining the center hole of a leaf spring leaf that facilitates positioning, for example... Figure 1 , Figure 2 and Figure 3 As shown:

[0027] Includes an upper template, a center hole punching mechanism mounted on the upper template, and a leaf spring clamping mechanism;

[0028] Lower template 1, and a leaf spring centering and limiting mechanism installed on the lower template 1;

[0029] The leaf spring clamping mechanism is installed between the center hole punching mechanism and the leaf spring centering and limiting mechanism.

[0030] The center hole punching mechanism includes a punching support column 3 fixedly installed on the upper template and a punch 4 fixedly installed at the bottom of the punching support column 3. The punching support column 3 is fixed on the side of the upper template facing the lower template 1.

[0031] The leaf spring clamping mechanism includes a clamping plate parallel to the upper template and a clamping block fixedly installed at the bottom of the clamping plate. A punching hole for the punch 4 to pass through is provided on the clamping plate. Furthermore, a guide shaft 2 passing through the clamping plate and the upper template is fixedly installed on the lower template 1. The leaf spring clamping mechanism also includes a clamping drive component. A support column 3 is fixedly installed on the clamping plate. The clamping drive component drives the clamping plate and the clamping block to press down via the downward pressure of the support column 3, thereby clamping the end face of the leaf spring plate through the clamping block.

[0032] In this embodiment, the leaf spring centering and limiting mechanism includes a punching die 11 fixedly installed on the lower template 1, a cross platform 5 fixedly installed on the lower template 1 and symmetrically arranged on both sides of the punching die 11, an end limiting plate symmetrically sliding on the cross platform 5, and a leaf spring clamping mechanism installed on the end limiting plate. A driving mechanism is also installed on the cross platform 5, which drives the end limiting plate to slide.

[0033] The center setting of the punching die 11 is aligned with the center hole of the punching mechanism, specifically the center of the punching die 11 and the center setting of the punch 12 is aligned with the center setting of the punch 4.

[0034] like Figure 3 As shown, the horizontal platform 5 has symmetrically formed sliding grooves, and the bottom end of the end limiting plate is integrally formed with a connecting platform 15, which is installed in the sliding groove and slides within the sliding groove. The drive mechanism includes a threaded rod installed on the inner end of the sliding groove and rotatable, and a handle 14 fixedly installed on the free end of the threaded rod. The connecting platform 15 has an internal threaded hole for the threaded rod to pass through and be threadedly connected to it.

[0035] The leaf spring clamping mechanism includes a slide 8 symmetrically slidably mounted inside the end limiting plate, an end abutment 10 mounted on the slide 8, and a clamping member mounted on one side of the slide 8. A second driving mechanism for driving the two slides 8 to slide towards each other is also mounted on the end limiting plate. The height of the slide 8 is the same as the height of the punching die 11. The end abutment 10 is fixedly mounted at the middle position on the top surface of the slide 8 away from the punching die 11.

[0036] Each of the outer ends of the slide table 8 is also fixed inward to a display platform 13 of the same height. The clamping element is installed on the platform and can slide along the display platform 13. Specifically, a groove is opened on the display platform 13, and the clamping element includes a column whose bottom end slides in the groove and a cone 9 whose diameter gradually increases and is fixed on the column.

[0037] The second drive structure includes a bidirectional lead screw 6 with positive and negative teeth installed between the two ends of the end limiting plate and rotatable, and a drive motor 7 fixed to the left end of the end limiting plate for driving the bidirectional lead screw 6 to rotate. The slide table 8 has two internal threaded holes that are threadedly connected to the bidirectional lead screw 6 with positive and negative teeth.

[0038] When this utility model is in use, the leaf spring moves from right to left;

[0039] Tighten the threaded rod in advance to control the distance between the end plates 10 on the end limit plates on the left and right sides to be equal to the length of the leaf spring.

[0040] The right-side drive motor 7 drives the bidirectional screw 6 with forward and reverse threads to rotate, opening the right-side slide table 8 until the leaf spring sheet can pass through, transporting the leaf spring sheet to the punching die 11, and mounting it on the left-side slide table 8 and abutting it with the end abutment plate 10. Then, the right-side drive motor 7 drives the bidirectional screw 6 with forward and reverse threads to rotate in the opposite direction to close the slide table 8, and the ends of the leaf spring sheet are positioned by the end abutment plates 10 on both sides.

[0041] Then, the sliding tables 8 are closed by the synchronous drive of the drive motors 7 on both sides until the cones 9 on the clamping parts are all abutted against the sides of the leaf spring, which plays the role of positioning the side of the leaf spring. Then the fixing plate is pressed down to position the surface of the leaf spring. Finally, the punch 4 punches a hole.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A device for machining the center hole of a leaf spring leaf that facilitates positioning, comprising: The upper template is fixedly connected to a center hole punching mechanism and a leaf spring clamping mechanism; The lower template is fixedly connected to a leaf spring centering and limiting mechanism; The leaf spring clamping mechanism is located between the center hole punching mechanism and the leaf spring centering and limiting mechanism; The leaf spring centering and limiting mechanism is characterized in that it includes a punching die fixed to the lower template and aligned with the center hole punching mechanism, a cross platform fixed to the lower template and symmetrically arranged on both sides of the punching die, an end limiting plate symmetrically slidably connected to the cross platform, and a leaf spring clamping mechanism arranged on the end limiting plate. The cross platform is provided with a first driving mechanism for driving the end limiting plate to slide. The leaf spring clamping mechanism includes a slide table symmetrically slidably connected to the inner side of the end limiting plate and at the same height as the punching die, an end abutment plate arranged on the slide table, an abutment member arranged on one side of the slide table for clamping the leaf spring, and a second driving mechanism arranged on the end limiting plate for driving the slide tables on both sides to slide towards each other.

2. The device for machining the center hole of a leaf spring sheet according to claim 1, characterized in that, The cross platform is symmetrically provided with a sliding groove. The bottom end of the end limiting plate is fixedly connected to a connecting platform that is slidably connected in the sliding groove. The driving mechanism includes a threaded rod that is rotatably connected to the inner end of the sliding groove and passes through the connecting platform, and a handle that is fixedly connected to the free end of the threaded rod. The connecting platform is provided with an internal threaded hole for the threaded rod to pass through and be threadedly connected to it.

3. The device for machining the center hole of a leaf spring sheet according to claim 1, characterized in that, The end plate is fixed to the top surface of the slide table on the side away from the punching die.

4. The device for machining the center hole of a leaf spring sheet according to claim 3, characterized in that, The end plate is fixed to the middle position on the top surface of the slide table away from the punching die.

5. The device for machining the center hole of a leaf spring sheet according to claim 1, characterized in that, The outer end of the slide is also fixed inward to a display platform, and the clamping member is provided on the display platform.

6. The device for machining the center hole of a leaf spring sheet according to claim 5, characterized in that, The clamping element is slidably connected to the display stand. The clamping element includes a column slidably connected to the display stand and a truncated cone with a gradually increasing diameter fixed to the column.

7. The device for machining the center hole of a leaf spring sheet according to claim 1, characterized in that, The second driving mechanism includes a bidirectional lead screw with positive and negative teeth rotatably connected between the two ends of the end limiting plate and a drive motor fixed to one end of the end limiting plate for driving the bidirectional lead screw to rotate. The slide has two internal threaded holes that are threadedly connected to the bidirectional lead screw.

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