High-precision steering knuckle surface milling and drilling clamp

Abstract

The utility model discloses a high-precision steering knuckle surface milling and drilling clamp, and relates to the technical field of steering knuckle surface milling and drilling machining. The device comprises a V-shaped positioning block, a lateral positioning block, a hydraulic system, a supporting cylinder, a lower positioning block, a standing plate and a bottom plate, after the steering knuckle is placed on the lower positioning block, the steering knuckle is quickly positioned through the V-shaped positioning block, an ejector rod at the front end of the supporting cylinder extends out to abut against workpieces on the two sides, it is ensured that the workpieces are clamped in place, and the steering knuckle is quickly pressed through a hydraulic system. The utility model further provides a corresponding machining method, through the steps of steering knuckle fixing, pressing and automatic alignment, face milling and drilling machining, taking out after completion and the like, the machining precision and consistency of steering knuckle holes are remarkably improved, the machining efficiency is improved, the rejection rate is reduced, the service life of the drill jig is prolonged, and the production requirement of high-performance steering knuckles is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steering knuckle milling surface drilling processing, in particular to a high-precision steering knuckle milling surface drilling fixture. Background Art

[0002] The steering knuckle is a critical component of the automotive chassis system, and its performance directly impacts vehicle efficiency. Traditionally, the milling and drilling process in steering knuckle manufacturing relies on manual labor or simple fixtures, resulting in unstable precision and low production efficiency. As transmission performance requirements increase, higher demands are placed on the dimensional and positional accuracy of milling and drilling processes.

[0003] Therefore, it is of great significance to develop a drilling fixture that can improve the drilling accuracy and efficiency of the steering knuckle milling surface. Utility Model Content

[0004] The purpose of the utility model is to provide a high-precision steering knuckle milling surface drilling fixture, which can significantly improve the steering knuckle hole processing accuracy and consistency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0006] A high-precision steering knuckle milling surface drilling fixture includes: a V-shaped positioning block, a lateral positioning block, a hydraulic system, a support cylinder, a lower positioning block, a stand plate and a base plate; after the steering knuckle is placed on the lower positioning block, it is quickly positioned by the V-shaped positioning block, the front end push rod of the support cylinder extends to press the workpieces on both sides to ensure that the workpieces are clamped in place, and the steering knuckle is quickly compressed by the hydraulic system.

[0007] As the preferred technical solution of the present utility model, in the high-precision steering knuckle milling surface drilling fixture structure:

[0008] The V-shaped positioning block and the lateral positioning block are installed on the station plate and connected by bolts, and are used to quickly and accurately position and fix the steering knuckle; the V-shaped positioning block consists of two groups of upper and lower V-shaped blocks, which can accurately and quickly position the steering knuckle, ensuring the consistency and stability of the workpiece clamping; the lateral positioning block is used to support the steering knuckle to ensure balance, and has good rigidity and stability.

[0009] The hydraulic system includes a side hydraulic system and an intermediate hydraulic system, both of which are installed on the station plate and consist of a hydraulic cylinder and a pressure plate. The pressure plate quickly presses the workpiece through the extension and retraction of the oil hydraulic rod. Two pressing points are designed at the front end of the pressure plate. The steering knuckle is quickly and accurately positioned through the hydraulic cylinder and the pressure plate.

[0010] The support cylinder is installed on the station plate and placed between the two steering knuckles to be processed. It consists of a hydraulic cylinder and a push rod. The push rod extends and presses the workpieces to be processed on both sides, so that the workpieces fit into the V-shaped positioning blocks, thereby achieving rapid positioning.

[0011] The lower positioning blocks include a first lower positioning block and a second lower positioning block, both of which are mounted on the bottom plate and used to support the steering knuckle.

[0012] The machine also includes a support rod, which is installed on the bottom plate and placed below the steering knuckle to be processed.

[0013] The utility model proposes a high-precision steering knuckle milling and drilling fixture. The lower positioning block serves as the steering knuckle's support structure. It is mounted on a base plate, positioned with positioning pins, and secured with bolts. A V-shaped positioning block and a lateral positioning block are mounted on a station plate. Once the steering knuckle to be processed is securely placed on the lower positioning block, the support cylinder is used to press the workpiece laterally, allowing the workpiece to contact the V-shaped positioning block for rapid positioning. The hydraulic system then operates to quickly and accurately press the workpiece, adjusting the bolts. A level is used to calibrate the workpiece, setting processing parameters, and starting the drilling equipment to begin milling and drilling. The utility model also provides a corresponding processing method. By securing the steering knuckle, pressing for automatic alignment, milling and drilling, and removing the completed workpiece, the accuracy and consistency of steering knuckle hole processing are significantly improved, processing efficiency is increased, scrap rates are reduced, and the service life of the drilling jig is extended, meeting the production requirements of high-performance steering knuckles.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Significantly improves the machining accuracy and consistency of steering knuckle milling surface drilling, meeting the production requirements of high-performance steering knuckles.

[0016] 2. Improved processing efficiency and reduced scrap rate.

[0017] 3. The design of the fine-tuning mechanism effectively extends the service life of the fixture and improves the stability of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the high-precision steering knuckle milling surface drilling fixture.

[0019] Figure 2 This is a structural diagram of the V-shaped positioning block.

[0020] Figure 3 It is a structural diagram of the lateral positioning block.

[0021] Figure 4 It is a structural diagram of the side hydraulic system.

[0022] Figure 5It is a structural diagram of the intermediate hydraulic system.

[0023] Figure 6 This is a structural diagram of the support cylinder.

[0024] Figure 7 、 8 They are structural schematic diagrams of the first and second lower positioning blocks respectively.

[0025] The meanings of the reference numerals in the figures are as follows:

[0026] 11-Side hydraulic system, 12-Middle hydraulic system.

[0027] 21-V-type positioning block, 22-lateral positioning block.

[0028] 31-base plate, 32-station plate.

[0029] 40-Support cylinder.

[0030] 51-first lower positioning block, 52-second lower positioning block.

[0031] 60-Support rod.

[0032] 70-Steering knuckle to be processed. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the embodiments and drawings.

[0034] Example 1

[0035] like Figure 1-8 As shown, the present invention provides a high-precision steering knuckle milling and drilling fixture, which includes: a V-shaped positioning block 21, a lateral positioning block 22, a hydraulic system (a lateral hydraulic system 11, a middle hydraulic system 12), a support cylinder 40, lower positioning blocks (a first lower positioning block 51, a second lower positioning block 52), a station plate 32, a base plate 31, and a support rod 60. The structure and connection arrangement of each component are described in detail below.

[0036] The V-shaped positioning block 21 and the lateral positioning block 22 are mounted on the station plate 32 and connected by bolts, so as to quickly and accurately position and fix the steering knuckle.

[0037] The V-shaped positioning block 21 is composed of two sets of upper and lower V-shaped blocks, which can accurately and quickly position the steering knuckle, ensuring the consistency and stability of the workpiece clamping. The lateral positioning block 22 is used to support the steering knuckle, ensuring balance and having good rigidity and stability.

[0038] The hydraulic system (side hydraulic system 11 and middle hydraulic system 12) are both installed on the station plate 32 and consist of a hydraulic cylinder and a pressure plate. The pressure plate quickly presses the workpiece through the extension and retraction of the hydraulic rod. Two pressing points are designed at the front end of the pressure plate, and the steering knuckle is quickly and accurately positioned through the hydraulic cylinder and the pressure plate.

[0039] In the high-precision steering knuckle milling and drilling fixture proposed in this embodiment, two steering knuckles 70 to be machined are loaded at a time. The pressure plates of the middle hydraulic system 12 respectively press the left and right parts, while the pressure plates of the two side hydraulic systems 11 respectively press the other sides of the left and right parts.

[0040] The support cylinder 40 is installed on the station plate 32 and placed between the two steering knuckles 70 to be processed. It consists of a hydraulic cylinder and a push rod. The push rod extends and presses the workpieces to be processed on both sides, so that the workpieces fit into the V-shaped positioning blocks, thereby achieving rapid positioning.

[0041] Two sets of lower locating blocks (first lower locating block 51 and second lower locating block 52) are mounted on the base plate 31 to support the steering knuckle. A set of lower locating blocks is placed below each steering knuckle 70 to be machined. The height difference between the lower locating blocks ensures workpiece levelness. Adjustment bolts, located at the bottom of the locating pins, fine-tune the knuckle's parallelism by adjusting the bolts to further improve machining accuracy.

[0042] Two support rods 60 are mounted on the base plate 31, and one support rod 60 is provided below each steering knuckle 70 to be processed. They are used to support the workpiece when the workpiece is placed but not yet compacted to prevent it from falling.

[0043] Once the steering knuckle is placed on the lower positioning block, it is quickly positioned using the V-shaped positioning block 21, whose outer diameter aligns with the V-shaped block surface, ensuring the knuckle's stable and consistent positioning. Once the knuckle is in place, the front end push rods of the support cylinder 40 extend to press against the workpieces on both sides, ensuring the workpieces are clamped in place and consistent, thereby ensuring consistent drilling. Once the knuckle is in place, the hydraulic system (side hydraulic system 11 and middle hydraulic system 12) quickly compresses the knuckle, ensuring a stable and secure clamping of the workpieces.

[0044] Example 2

[0045] The present embodiment proposes a high-precision steering knuckle milling surface drilling method, which is specifically applied to the processing of Chixu 5140 steering knuckle, comprising the following steps:

[0046] Step 1: Install the V-shaped positioning block on the station plate, position it using the positioning pins, and secure it with bolts.

[0047] Step 2: Install the lateral positioning block on the station plate, position it with the positioning pin, and fix it with bolts.

[0048] Step 3: Install the lower positioning block on the base plate and secure it with positioning pins and bolts.

[0049] Step 4: Install the hydraulic system on the station plate and secure it with bolts.

[0050] Step 5: Install the support cylinder on the station plate and secure it with bolts.

[0051] Step 6: Install the support rod on the base plate and fix it with bolts.

[0052] Step seven: Place the 5140 steering knuckle on the lower positioning block, press it sideways with the support cylinder, and the workpiece contacts the V-shaped positioning block for rapid positioning. The hydraulic system works to quickly and accurately press the workpiece.

[0053] Step 8: Set the processing parameters, start the drilling equipment, and start processing.

[0054] Step 9: After the processing is completed, turn off the drilling equipment, loosen the hydraulic system, retract the support cylinder, and take out the processed steering knuckle.

[0055] By following the steps of the above processing method, high-precision and high-efficiency steering knuckle processing can be achieved.

[0056] The above content is merely an example and explanation of the concept of the present invention. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A high-precision steering knuckle milling surface drilling fixture, characterized in that: It includes: V-shaped positioning block, lateral positioning block, hydraulic system, support cylinder, lower positioning block, stand plate and base plate; after the steering knuckle is placed on the lower positioning block, it is quickly positioned by the V-shaped positioning block, the front end push rod of the support cylinder extends out to tighten the workpieces on both sides to ensure that the workpieces are clamped in place, and the steering knuckle is quickly compressed by the hydraulic system.

2. The high-precision steering knuckle milling surface drilling fixture according to claim 1, characterized in that: The V-shaped positioning block and the lateral positioning block are installed on the station plate and connected by bolts, and are used to quickly and accurately position and fix the steering knuckle; the V-shaped positioning block consists of two groups of upper and lower V-shaped blocks, which can accurately and quickly position the steering knuckle, ensuring the consistency and stability of the workpiece clamping; the lateral positioning block is used to support the steering knuckle to ensure balance, and has good rigidity and stability.

3. The high-precision steering knuckle milling surface drilling fixture according to claim 1, characterized in that: The hydraulic system includes a side hydraulic system and an intermediate hydraulic system, both of which are installed on the station plate and consist of a hydraulic cylinder and a pressure plate. The pressure plate quickly presses the workpiece through the extension and retraction of the oil hydraulic rod. Two pressing points are designed at the front end of the pressure plate. The steering knuckle is quickly and accurately positioned through the hydraulic cylinder and the pressure plate.

4. The high-precision steering knuckle milling surface drilling fixture according to claim 1, characterized in that: The support cylinder is installed on the station plate and placed between the two steering knuckles to be processed. It consists of a hydraulic cylinder and a push rod. The push rod extends and presses the workpieces to be processed on both sides, so that the workpieces fit into the V-shaped positioning blocks, thereby achieving rapid positioning.

5. The high-precision steering knuckle milling surface drilling fixture according to claim 1, characterized in that: The lower positioning blocks include a first lower positioning block and a second lower positioning block, both of which are mounted on the bottom plate and used to support the steering knuckle.

6. The high-precision steering knuckle milling surface drilling fixture according to claim 1, characterized in that: The machine also includes a support rod, which is installed on the bottom plate and placed below the steering knuckle to be processed.

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