A heavy truck leaf spring support machining milling tool

By designing a combination of support, positioning, clamping, and pushing components, the problem of poor clamping accuracy and stability in the processing of heavy-duty vehicle leaf spring brackets was solved, achieving stable clamping and precise positioning of complex structural parts, and improving processing accuracy and efficiency.

CN224347448UActive Publication Date: 2026-06-12XIAN NEW THINKING HEAVY TRUCK IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN NEW THINKING HEAVY TRUCK IND & TRADE CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In the existing technology, the clamping accuracy and stability of heavy-duty vehicle leaf spring brackets are poor during processing, especially for parts with complex shapes and structures, making it difficult to achieve stable clamping and precise positioning.

Method used

A machining milling tool for heavy-duty automotive leaf spring brackets was designed, comprising a support assembly, a positioning assembly, a clamping assembly, and a pushing assembly. The support assembly supports the leaf spring bracket, the positioning assembly provides precise positioning, the clamping assembly provides fixation, and the pushing assembly adjusts the position to ensure that the leaf spring bracket does not experience positioning deviation during machining.

🎯Benefits of technology

It achieves stable clamping and precise positioning of complex leaf spring brackets, improves processing accuracy and stability, and can process two leaf spring brackets simultaneously, achieving a dual-station effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy -duty truck leaf spring support mechanical processing milling tool belongs to milling fixture technical field. A heavy -duty truck leaf spring support mechanical processing milling tool, including bottom plate and be used for supporting the support subassembly of leaf spring support, the support subassembly has two groups in common, is used for supporting two leaf spring supports simultaneously, positioning assembly is used for positioning leaf spring support, clamping assembly is used for clamping and fixing two leaf spring supports, push -and -press subassembly is used for pushing leaf spring support and is in contact on the surface of positioning assembly, and push -and -press subassembly is driven through floating oil cylinder, the utility model discloses a support subassembly, positioning assembly and clamping assembly are arranged to clamp and fix leaf spring support, and two groups of support subassembly can install two leaf spring supports simultaneously, and two leaf spring supports are processed simultaneously, reach the effect of double station.
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Description

Technical Field

[0001] This utility model relates to the field of milling fixture technology, and in particular to a milling tool for machining heavy-duty automobile leaf spring brackets. Background Technology

[0002] The main function of a heavy-duty vehicle suspension is to transmit all forces and torques acting between the wheels and the frame, and to mitigate the impacts generated when the vehicle travels over uneven road surfaces, as well as dampen the resulting vibrations in the load-bearing system, thereby ensuring a smooth ride. In the front suspension system of a heavy-duty vehicle, the aforementioned forces and torques are ultimately transmitted to the frame by the leaf spring supports.

[0003] Currently, leaf spring brackets are processed using traditional clamping devices. These devices can hold parts with relatively simple shapes and structures, but for parts with more complex shapes and structures, clamping may be unstable, leading to positioning deviations during processing and poor workpiece quality stability. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor clamping accuracy and poor stability in the existing technology, and to propose a heavy-duty automobile leaf spring bracket machining milling tool.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heavy-duty vehicle leaf spring bracket machining milling tool includes a base plate and a support assembly for supporting the leaf spring bracket. The support assembly consists of two sets for supporting two leaf spring brackets simultaneously.

[0007] Positioning assembly for positioning the leaf spring bracket;

[0008] Clamping assembly for clamping and fixing the two leaf spring supports;

[0009] The pushing assembly is used to push the leaf spring bracket against the surface of the positioning assembly. The pushing assembly is driven by a floating hydraulic cylinder.

[0010] In some embodiments, the support assembly includes two first support columns and two second support columns fixed to the upper surface of the base plate. The height of the two second support columns is higher than the height of the two first support columns, which are used to adapt to the leaf spring bracket. The two first support columns and the two second support columns are used to support the four corners of the leaf spring bracket.

[0011] In some embodiments, the positioning component includes a plurality of positioning slots for longitudinal positioning of the leaf spring bracket and a positioning block for lateral positioning of the leaf spring bracket. The plurality of positioning slots are respectively opened on the upper ends of a plurality of first support columns, and the positioning block is located between two sets of support components.

[0012] In some embodiments, the clamping assembly includes a first clamping block and a second clamping block for clamping the leaf spring bracket, the first clamping block and the second clamping block being driven by a first rotary cylinder and a second rotary cylinder, respectively, and the second clamping block being located between two sets of support assemblies.

[0013] In some embodiments, the floating cylinder is fixed to the upper surface of the base plate, and the pushing assembly includes a side-pushing assembly for pushing the leaf spring bracket to move laterally and a front-pushing assembly for pushing the leaf spring bracket to move longitudinally. Both the side-pushing assembly and the front-pushing assembly are mounted on the surfaces of two second support columns via mounting rods.

[0014] In some embodiments, the mounting rod includes two first collars sleeved on the surfaces of two second support columns, the two first collars being fixedly connected by a connecting rod, and a mounting ring for mounting the side thrust assembly is fixed on the surface of the first collar near the first corner cylinder.

[0015] In some embodiments, the side-push assembly includes a vertical rod that rotates on the surface of a mounting ring and a side-push rod fixed to the upper end of the vertical rod, the vertical rod and the side-push rod being combined in a Z-shape.

[0016] In some embodiments, the push assembly includes a ball fixed to the lower end of the upright by a connecting rod and a push rod fixed above the ball, the connecting rod being horizontally positioned, and the ball corresponding to a floating cylinder.

[0017] In some embodiments, the upright surface is rotatably provided with another mounting ring, the surface of the other mounting ring is fixed with a second sleeve ring, the second sleeve ring is sleeved on the surface of the second support column, and the upright surface is provided with a torsion spring for driving the push assembly to rotate and reset.

[0018] Compared with the prior art, the present invention provides a machining milling tool for heavy-duty automobile leaf spring brackets, which has the following beneficial effects.

[0019] 1. This utility model uses a support assembly, a positioning assembly, and a clamping assembly to clamp and fix the leaf spring bracket. Two leaf spring brackets can be installed and processed simultaneously using two sets of support assemblies, achieving a dual-station effect.

[0020] 2. In this utility model, by setting a floating oil cylinder and a pushing component, the floating oil cylinder pushes the ball, which drives the side pushing component and the front pushing component to push the leaf spring bracket to adjust its position, so that it abuts against the surface of the positioning groove and the positioning block, thereby avoiding positioning deviation and affecting the processing accuracy.

[0021] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the orthogonal axial structure of this utility model.

[0023] Figure 2 This is a top view of the structure of this utility model.

[0024] Figure 3 This is a side view of the structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the rear axial structure of this utility model.

[0026] Figure 5 This is a schematic diagram of the installation structure of the push-press component in this utility model.

[0027] Figure 6 This is a schematic diagram of the push-press component in this utility model.

[0028] In the picture:

[0029] 1. Base plate; 101. Mounting hole; 2. Support assembly; 201. First support column; 202. Second support column; 3. Positioning assembly; 301. Positioning groove; 302. Positioning block; 4. Clamping assembly; 401. First corner cylinder; 4011. First clamping block; 402. Second corner cylinder; 4021. Second clamping block; 5. Floating cylinder; 6. Pushing assembly; 601. Mounting rod; 6011. Connecting rod; 6012. First collar; 6013. Mounting ring; 602. Side push assembly; 6021. Vertical pole; 6022. Side push rod; 603. Forward push assembly; 6031. Ball; 6032. Forward push rod; 604. Second collar; 605. Torsion spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-6 A heavy-duty automobile leaf spring bracket machining milling tool includes a base plate 1 and a support assembly 2 for supporting the leaf spring bracket. There are two sets of support assemblies 2, which are used to support two leaf spring brackets at the same time.

[0032] The base plate 1 has multiple mounting holes 101 for fixing the base plate 1 on its surface, and the multiple mounting holes 101 are located on both sides of the base plate 1 respectively;

[0033] The support assembly 2 includes two first support columns 201 and two second support columns 202 fixed to the upper surface of the base plate 1. The height of the two second support columns 202 is higher than the height of the two first support columns 201, which is used to adapt to the leaf spring bracket. The two first support columns 201 and the two second support columns 202 are used to support the four corners of the leaf spring bracket.

[0034] Understandably, the base plate 1 is installed on the CNC machine tool through multiple mounting holes 101 and bolts, and two leaf spring brackets can be installed and processed simultaneously through two sets of support components 2, achieving the effect of dual-station operation.

[0035] Specifically, it also includes a positioning component 3 for positioning the two leaf spring supports. The positioning component 3 includes multiple positioning grooves 301 for longitudinal positioning of the leaf spring supports and positioning blocks 302 for transverse positioning of the leaf spring supports. The multiple positioning grooves 301 are respectively opened on the upper ends of multiple first support columns 201. The positioning blocks 302 are fixed to the surface of the base plate 1 by mounting columns, and the positioning blocks 302 are located between the two sets of support components 2.

[0036] It is understandable that when the leaf spring bracket is placed on the upper end of the first support column 201 and the second support column 202, the lateral side of the leaf spring bracket is longitudinally positioned by abutting against the positioning groove 301, and the longitudinal side of the leaf spring bracket is abutting against one side of the positioning block 302, thereby positioning the leaf spring bracket; by setting the positioning block 302 between the two sets of support components 2, the two leaf spring brackets are simultaneously laterally positioned by using both sides of the positioning block 302.

[0037] Specifically, it also includes a clamping assembly 4 for clamping and fixing the two leaf spring supports. The clamping assembly 4 includes a first corner cylinder 401 fixed on both sides of the base plate 1 and a second corner cylinder 402 fixed between the two sets of support assemblies 2. The upper ends of the two first corner cylinders 401 are fixed with a first clamping block 4011 for clamping the leaf spring supports, and the upper ends of the second corner cylinders 402 are fixed with a second clamping block 4021 for simultaneously clamping the leaf spring supports.

[0038] Understandably, when it is necessary to clamp and fix the leaf spring bracket, the first angle cylinder 401 and the second angle cylinder 402 work simultaneously, driving the first clamping block 4011 and the second clamping block 4021 to move downward. While moving downward, the first clamping block 4011 and the second clamping block 4021 rotate 90 degrees, so that the first clamping block 4011 and the second clamping block 4021 move into the range of the leaf spring bracket, and continue to move downward to clamp and fix the leaf spring bracket, thereby improving clamping stability.

[0039] Specifically, a floating cylinder 5 and a pushing assembly 6 are provided on the upper surface of the base plate 1 to push the leaf spring bracket against the surface of the positioning groove 301 and the positioning block 302. There are two sets of floating cylinders 5 and pushing assemblies 6, which are symmetrically arranged on the upper surface of the base plate 1.

[0040] The floating cylinder 5 is fixed on the upper surface of the base plate 1. The pushing assembly 6 includes a side pushing assembly 602 for pushing the leaf spring bracket to move laterally and a front pushing assembly 603 for pushing the leaf spring bracket to move longitudinally. Both the side pushing assembly 602 and the front pushing assembly 603 are mounted on the surfaces of the two second support columns 202 via mounting rods 601.

[0041] Understandably, since the leaf spring bracket is relatively heavy, after it is placed on the upper end of the first support column 201 and the second support column 202, if the leaf spring bracket is not fully in contact with the positioning groove 301 and the positioning block 302, it is necessary to push the leaf spring bracket to adjust its position, which is quite laborious. Therefore, by setting the floating oil cylinder 5 and the pushing component 6, the leaf spring bracket is pushed to adjust its position so that it abuts against the surface of the positioning groove 301 and the positioning block 302, so as to avoid positioning deviation and affect the processing accuracy.

[0042] Specifically, the mounting rod 601 includes two first collars 6012 sleeved on the surfaces of the two second support columns 202. The two first collars 6012 are fixedly connected by a connecting rod 6011. The second support columns 202 are stepped shafts with different diameters. The two first collars 6012 are sleeved on the end of the second support column 202 with the smaller diameter. A mounting ring 6013 for mounting the side push assembly 602 is fixed on the surface of the first collar 6012 near the first corner cylinder 401.

[0043] The side push assembly 602 includes a vertical rod 6021 that rotates on the surface of the mounting ring 6013 and a side push rod 6022 fixed to the upper end of the vertical rod 6021. The vertical rod 6021 and the side push rod 6022 are combined in a Z-shape.

[0044] The forward thrust assembly 603 includes a ball 6031 fixed to the lower end of the upright 6021 via a connecting rod 6011 and a forward thrust rod 6032 fixed above the ball 6031. The connecting rod 6011 is horizontally positioned, and the ball 6031 corresponds to the floating cylinder 5.

[0045] Understandably, the floating cylinder 5 pushes the ball 6031, thereby causing the upright rod 6021 to rotate on the inner wall of the mounting ring 6013. This causes the upright rod 6021 to rotate the side push rod 6022, pushing the leaf spring bracket towards the positioning block 302. At the same time, the floating cylinder 5 pushes the ball 6031 and the push rod 6032 closer to the leaf spring bracket, thereby moving the leaf spring bracket towards the positioning groove 301. This adjusts the position of the leaf spring bracket and achieves precise positioning.

[0046] When installing the push assembly 6, the two first rings 6012 are respectively fitted onto the surfaces of the two second support columns 202. The height is positioned by the stepped shaft shape of the second support column 202. At the same time, the ball 6031 is made to abut against the output end of the floating cylinder 5 to achieve the purpose of quick installation. The two first rings 6012 can limit the swing of the push assembly 6.

[0047] Specifically, the surface of the upright 6021 has another mounting ring 6013 that rotates, and the surface of the other mounting ring 6013 is fixed with a second ring 604. The second ring 604 is engaged with the larger diameter end of the second support column 202, and the surface of the upright 6021 is fitted with a torsion spring 605 for driving the push assembly 6 to rotate and reset.

[0048] Understandably, by setting a second ring 604 and another mounting ring 6013, the stability of the upright 6021 during rotation is improved, and by setting a torsion spring, it is easy to automatically reset after the leaf spring bracket is pushed to adjust its position.

[0049] In this invention, during the processing of the leaf spring brackets, two leaf spring brackets are simultaneously placed on the double-station surface of the base plate 1. After placement, the floating cylinder 5 pushes the ball 6031, thereby causing the upright rod 6021 to rotate within the inner walls of the two mounting rings 6013. This causes the upright rod 6021 to rotate the side push rod 6022, pushing the leaf spring bracket towards the positioning block 302. Simultaneously, the floating cylinder 5 pushes the ball 6031 and the push rod 6032 closer to the leaf spring bracket, thereby moving the leaf spring bracket towards the positioning groove 301. This allows for position adjustment of the leaf spring bracket to achieve precise positioning. Then, the first angle cylinder 401 and the second angle cylinder 402 work simultaneously, driving the first clamping block 4011 and the second clamping block 4021 to move downwards. As they move downwards, the first clamping block 4011 and the second clamping block 4021 rotate 90 degrees, moving them into the range of the leaf spring bracket. After continuing to move downwards, they clamp and fix the leaf spring bracket, improving clamping stability and thus completing the precise clamping of the leaf spring bracket.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples; although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A milling tool for machining heavy-duty automotive leaf spring brackets, characterized in that, It includes a base plate (1) and a support assembly (2) for supporting the leaf spring brackets. There are two sets of the support assembly (2) for supporting two leaf spring brackets at the same time. Positioning component (3) is used to position the leaf spring bracket; Clamping assembly (4) is used to clamp and fix the two leaf spring brackets; The pushing assembly (6) is used to push the leaf spring bracket against the surface of the positioning assembly (3). The pushing assembly (6) is driven by the floating cylinder (5).

2. The heavy-duty vehicle leaf spring bracket machining milling tool according to claim 1, characterized in that, The support assembly (2) includes two first support columns (201) and two second support columns (202) fixed on the upper surface of the base plate (1). The height of the two second support columns (202) is higher than that of the two first support columns (201) for adapting to the leaf spring bracket. The two first support columns (201) and the two second support columns (202) are used to support the four corners of the leaf spring bracket.

3. The heavy-duty vehicle leaf spring bracket machining milling tool according to claim 1, characterized in that, The positioning component (3) includes multiple positioning grooves (301) for longitudinal positioning of the leaf spring bracket and positioning blocks (302) for lateral positioning of the leaf spring bracket. The multiple positioning grooves (301) are respectively opened on the upper ends of multiple first support columns (201), and the positioning blocks (302) are located between the two sets of support components (2).

4. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 1, characterized in that, The clamping assembly (4) includes a first clamping block (4011) and a second clamping block (4021) for clamping the leaf spring bracket. The first clamping block (4011) and the second clamping block (4021) are driven by a first rotary cylinder (401) and a second rotary cylinder (402), respectively. The second clamping block (4021) is located between two sets of support assemblies (2).

5. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 1, characterized in that, The floating cylinder (5) is fixed on the upper surface of the base plate (1). The pushing assembly (6) includes a side push assembly (602) for pushing the leaf spring bracket to move laterally and a front push assembly (603) for pushing the leaf spring bracket to move longitudinally. The side push assembly (602) and the front push assembly (603) are both mounted on the surface of the two second support columns (202) by mounting rods (601).

6. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 5, characterized in that, The mounting rod (601) includes two first collars (6012) sleeved on the surfaces of two second support columns (202). The two first collars (6012) are fixedly connected by a connecting rod (6011). The surface of the first collar (6012) near the first corner cylinder (401) is fixed with a mounting ring (6013) for mounting the side push assembly (602).

7. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 5, characterized in that, The side push assembly (602) includes a vertical rod (6021) that rotates on the surface of the mounting ring (6013) and a side push rod (6022) fixed to the upper end of the vertical rod (6021). The vertical rod (6021) and the side push rod (6022) are combined in a Z-shape.

8. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 5, characterized in that, The forward thrust assembly (603) includes a ball (6031) fixed to the lower end of the upright (6021) by a connecting rod (6011) and a forward thrust rod (6032) fixed above the ball (6031). The connecting rod (6011) is horizontally arranged, and the ball (6031) corresponds to the floating oil cylinder (5).

9. A heavy-duty vehicle leaf spring bracket machining milling tool according to claim 7, characterized in that, The upright (6021) has another mounting ring (6013) rotatably mounted on its surface. The other mounting ring (6013) has a second ring (604) fixed on its surface. The second ring (604) is sleeved on the surface of the second support column (202). The upright (6021) has a torsion spring (605) for driving the push assembly (6) to rotate and reset.