Device for single-head horizontal machining of toe-in and camber angle of torsion beam
By designing a fixture, rotary drive unit, and pad bottom device in a single-head horizontal machining center, the problem that a single-head horizontal machining center cannot process the toe-in and outward tilt angles of torsion beams is solved, achieving low-cost suitability for small-batch production, and the equipment can be flexibly used for a variety of products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JIANAN IND
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, double-head horizontal machining centers are expensive and cannot effectively utilize the toe-in and outward tilt angles of torsion beams when machining with single-head horizontal machining centers, resulting in equipment waste during small-batch production. Furthermore, there is a lack of suitable methods for single-head horizontal machining centers.
A device for a single-head horizontal machining center, consisting of a clamp, a rotary drive, and a pad, is designed. By tilting the clamp and the rotary drive, the torsion beam is tilted relative to the vertical. The cutter head of the single-head horizontal machining center is used to machine the toe-in and outward tilt angles on the end plates on both sides of the torsion beam, respectively.
Although less efficient, it is also less expensive, suitable for small-batch production, and the device can be removed to process other products when the torsion beam is not being processed, thus improving equipment utilization.
Smart Images
Figure CN224158095U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automobile chassis torsion beam manufacturing technology, and specifically relates to a device for single-head horizontal machining of torsion beam toe-in and camber angle. Background Technology
[0002] Currently, the toe-in and camber angles of both end plates on the torsion beam of an automotive chassis need to be machined to ensure vehicle stability and extend tire life. Existing technology typically uses a double-head horizontal machining center (also known as a double-head horizontal machining center) to simultaneously machine the toe-in and camber angles on both end plates of the torsion beam. The double-head horizontal machining center is a specialized machine tool. When machining the toe-in and camber angles of the end plates on both sides of the torsion beam, the fixture is fixed inside the double-head horizontal machining center, and the cutting tool is set to move at a fixed angle. Therefore, the toe-in and camber angles can be machined simultaneously on both end plates of the torsion beam in one operation, resulting in high efficiency and making it particularly suitable for mass production.
[0003] Double-head horizontal machining centers are specialized machine tools with high costs and cannot be used for a wide variety of products. While they can improve efficiency in mass production of torsion beams, they often remain idle during small-batch production, resulting in waste. Single-head horizontal machining centers (also known as single-head horizontal machining centers) are lower in cost and can be used to process a variety of products. However, due to their limited toolpath and lack of suitable methods, they cannot currently be used to machine the toe-in and camber angles of torsion beams. Utility Model Content
[0004] This invention provides a device for machining the toe and camber angles of a torsion beam using a single-head horizontal machining center, thereby solving the technical problem that a single-head horizontal machining center cannot currently be used to machine the toe and camber angles of a torsion beam.
[0005] This utility model is achieved through the following technical solution: a device for machining the toe-in and camber angles of a torsion beam using a single-head horizontal machining center, comprising:
[0006] A clamp for holding the torsion beam, the clamp being mounted on a mounting plate;
[0007] A rotary drive unit is mounted on the worktable of a single-head horizontal machining center, and the mounting plate is mounted on the rotary drive unit.
[0008] The bottom pad is installed between the rotary drive unit and the worktable;
[0009] The rotary drive unit is used to drive the mounting plate to rotate the clamp, and the bottom of the pad causes the rotary drive unit, the mounting plate and the clamp to be tilted relative to the vertical.
[0010] Furthermore, to better realize this utility model, the rotary drive unit includes:
[0011] The main body is installed on the bottom of the pad;
[0012] A turntable is rotatably mounted on the main body, and an electric drive unit is installed between the turntable and the main body. The electric drive unit is used to drive the turntable to rotate on the main body, and the mounting plate is mounted on the turntable.
[0013] Furthermore, in order to better realize this utility model, the turntable is provided with a positioning groove, the bottom surface of the mounting plate is provided with a positioning block, the mounting plate is attached to the turntable and fixed by bolts, and the positioning block is inserted into the positioning groove.
[0014] Furthermore, in order to better realize this utility model, the bottom of the pad is a pad plate, the pad plate is attached to the workbench and fixed by bolts, the top surface of the pad plate is an inclined surface that is inclined relative to the horizontal plane, and the rotating drive part is attached to the inclined surface and fixed by bolts.
[0015] Furthermore, in order to better realize this utility model, the angle between the inclined surface of the pad and the horizontal plane is α, where 0 < α < 2°.
[0016] Furthermore, in order to better realize this utility model, the angle between the inclined surface of the pad and the horizontal plane is α, 0.533°≤α≤1.067°.
[0017] Furthermore, in order to better realize this utility model, the angle between the inclined surface of the pad and the horizontal plane is α, where α = 0.8°.
[0018] Compared with the prior art, this utility model has the following advantages:
[0019] The device provided by this utility model for machining the toe-in and camber angles of a torsion beam using a single-head horizontal machining center includes a clamp, a rotary drive unit, and a pad. The clamp is mounted on a mounting plate and is used to hold the torsion beam of an automobile chassis. The rotary drive unit is mounted on the worktable of the single-head horizontal machining center (i.e., a single-head horizontal machining center). The mounting plate is mounted on the rotary drive unit, thereby using the rotary drive unit to drive the mounting plate to rotate the clamp. The pad is installed between the rotary drive unit and the worktable, and with the help of the pad, the rotary drive unit, the mounting plate, and the clamp are all tilted relative to the vertical.
[0020] During installation, first mount the pad bottom onto the single-head horizontal machining center's worktable, ensuring the inclined surface of the pad bottom is at the top. Then, mount the rotary drive unit onto the pad bottom, followed by mounting the mounting plate with the fixture onto the rotary drive unit. After installation, the fixture is tilted relative to the vertical. In use, clamp the torsion beam into the fixture. Because the fixture is tilted relative to the vertical, the torsion beam is also tilted relative to the vertical. Then, use the rotary drive unit to drive the mounting plate to rotate the fixture and its torsion beam by a specified angle. Next, start the single-head horizontal machining center, allowing the cutting head to feed in. The cutting head then cuts on one end plate of the torsion beam in one pass to obtain the lead and camber angles. Then, use the rotary drive unit to drive the mounting plate to rotate the fixture and its torsion beam, causing the end plate on the other side of the torsion beam to rotate to the machining position. Finally, start the single-head horizontal machining center again, using the cutting head to cut on the other end plate of the torsion beam in one pass to obtain the lead and camber angles.
[0021] The device provided by this utility model, with the help of the pad bottom and the rotary drive unit, ensures that when the torsion beam is installed in a single-head horizontal machining center, the end plate on the side of the torsion beam has a suitable angle relative to the tool feed path. Thus, the toe-in and outward tilt angles can be machined on the end plate of the torsion beam using the single-head horizontal machining center. Although using this device and the single-head horizontal machining center requires two passes to machine the toe-in and outward tilt angles on both sides of the torsion beam, resulting in lower efficiency, the cost of the single-head horizontal machining center is lower. Furthermore, when the torsion beam is not needed for machining, the pad bottom, rotary drive unit, mounting plate, and fixture can be removed from the single-head horizontal machining center to facilitate the machining of other products. Therefore, it is more suitable for small-batch machining of torsion beams. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the device for machining the toe-in and outward tilt angle of a torsion beam using a single-head horizontal machining process, as provided in this embodiment of the utility model.
[0024] Figure 2 yes Figure 1 Another view of the device shown for machining the toe-in and camber angles of a torsion beam using a single-head horizontal machining center.
[0025] In the picture:
[0026] 100-Clamping fixture, 200-Mounting plate, 300-Rotary drive unit, 400-Plate, 500-Worktable, 600-Torsion beam. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] Example:
[0029] like Figure 1 and Figure 2 As shown, the device provided in this embodiment for machining the toe-in and camber angles of a torsion beam using a single-head horizontal machining center includes a clamp 100, a rotary drive unit 300, and a pad bottom, wherein:
[0030] The clamp 100 is a special clamping fixture for holding the torsion beam 600 of an automobile chassis. It is prior art and therefore will not be described in detail here. It is mounted on the mounting plate 200. Unlike prior art, where the clamp 100 is fixedly mounted on the double-headed horizontal machining center table 500, the clamp 100 in this patent is rotatably mounted on the single-headed horizontal machining center table 500. The specific mounting scheme is as follows:
[0031] The mounting plate 200 is mounted on the rotary drive unit 300, which is mounted on the worktable 500 of a single-head horizontal machining center. Thus, the rotary drive unit 300 drives the mounting plate 200 to rotate the fixture 100. A pad is placed between the rotary drive unit 300 and the worktable 500, causing the rotary drive unit 300, mounting plate 200, and fixture 100 to be tilted relative to the vertical. It should be noted that before the pad is installed, the mounting plate 200 is horizontal, the rotary drive unit 300 drives the mounting plate 200 and the fixture 100 to rotate in the horizontal plane, and the torsion beam 600 mounted on the fixture 100 is also horizontal. After the pad is installed, the rotary drive unit 300, mounting plate 200, and the torsion beam 600 held by the fixture 100 are tilted relative to the horizontal plane.
[0032] During installation, first install the bottom pad on the worktable 500 of the single-head horizontal machining center, so that the inclined surface of the bottom pad is at the top. Then install the rotary drive unit 300 on the bottom pad, and then install the mounting plate 200 with the clamp 100 on the rotary drive unit 300. After installation, the clamp 100 is tilted relative to the vertical. In use, the torsion beam 600 is clamped in the fixture 100. Since the fixture 100 is tilted relative to the vertical, the torsion beam 600 is also tilted relative to the vertical. Then, the rotary drive unit 300 drives the mounting plate 200 to rotate the fixture 100 and the torsion beam 600 on it by a specified angle. Then, the single-head horizontal machining center is started, so that the cutting head of the single-head horizontal machining center enters the feed, thereby using the cutting head of the single-head horizontal machining center to cut on the end plate on one side of the torsion beam 600 in one go to obtain the lead and outward tilt angle. Then, the rotary drive unit 300 drives the mounting plate 200 to rotate the fixture 100 and the torsion beam 600 on it, so that the end plate on the other side of the torsion beam 600 is rotated to the machining position. Then, the single-head horizontal machining center is started again, and the cutting head of the single-head horizontal machining center is used to cut on the end plate on the other side of the torsion beam 600 in one go to obtain the lead and outward tilt angle.
[0033] The device provided in this embodiment, with the help of the pad bottom and the rotary drive unit 300, ensures that when the torsion beam 600 is installed in a single-head horizontal machining center, the end plate on the side of the torsion beam 600 has a suitable angle relative to the tool feed path. Thus, when using the single-head horizontal machining center for tool feed, the lead-in and outward tilt angles can be machined on the end plate of the torsion beam 600. Although using this device and the single-head horizontal machining center requires two tool passes to machine the lead-in and outward tilt angles on both sides of the torsion beam 600, resulting in lower efficiency, the cost of the single-head horizontal machining center is lower. Furthermore, when the torsion beam 600 does not need to be machined, the pad bottom, the rotary drive unit 300, the mounting plate 200, and the fixture 100 can be removed from the single-head horizontal machining center to facilitate the machining of other products. Therefore, it is more suitable for small-batch machining of the torsion beam 600.
[0034] Optionally, the aforementioned rotary drive unit 300 is a turntable in the prior art, comprising a main body and a turntable. The main body is mounted on a pad, and the turntable is rotatably mounted on the main body. An electric drive unit connected to the turntable is also mounted on the main body. The electric drive unit drives the turntable to rotate on the main body. The electric drive unit includes a motor and a transmission pair (e.g., a gear transmission pair). The motor is installed inside the main body, and the transmission pair is connected between the motor and the turntable. Thus, when the motor is energized, the turntable can be driven to rotate through the transmission pair. Since there are many such turntables in the prior art, they will not be described in detail here. With this rotary drive unit 300, after processing one end plate of the torsion beam 600, the orientation of the torsion beam 600 can be automatically adjusted to rotate the unprocessed end plate on the other side to the processing position without manual intervention.
[0035] Of course, the aforementioned rotary drive unit 300 can also be any other type of mechanism capable of outputting rotary motion, such as a hydraulic motor. Additionally, a planar thrust bearing can be installed between the turntable and the main body to support the weight of the turntable, mounting plate 200, clamp 100, and the torsion beam 600 on it.
[0036] In order to ensure that the turntable has sufficient force to drive the mounting plate 200 to rotate, in this embodiment, the turntable is provided with a positioning groove, and the bottom surface of the mounting plate 200 is provided with a positioning block. The mounting plate 200 is attached to the turntable and fixed by bolts. The positioning block is inserted into the positioning groove. In this way, the interaction between the positioning block and the positioning groove enables the turntable to drive the mounting plate 200 to rotate more smoothly, thereby driving the clamp 100 and the torsion beam 600 on it to rotate.
[0037] An optional implementation of this embodiment is as follows: The bottom of the pad is a pad plate 400, which overlaps the workbench 500 and is fixed by bolts. The top surface of the pad plate 400 is an inclined surface, which is inclined relative to the horizontal plane. The rotary drive unit 300 overlaps the inclined surface and is fixed by bolts. In this embodiment, the bottom surface of the rotary drive unit 300 is a plane. When it overlaps the inclined surface of the pad plate 400, the rotary drive unit 300 is inclined relative to the vertical, thereby causing the mounting plate 200, the clamp 100, and the torsion beam 600 mounted on the rotary drive unit 300 to be inclined relative to the vertical.
[0038] Specifically, the angle between the inclined surface of the aforementioned pad 400 and the horizontal plane is α. Optionally, 0 < α < 2°. Preferably, 0.533° ≤ α ≤ 1.067°. Most preferably, α = 0.8°. Of course, the angle between the inclined surface of the aforementioned pad 400 and the horizontal plane can also be 0.6°, 0.7°, or 0.9°.
[0039] This results in the end plate of the torsion beam 600 tilting 0.8° relative to the vertical. It should be noted that before machining the lead-in and outward tilt angle of the end plate on one side, the specified angle by which the rotary drive unit 300 drives the torsion beam 600 to rotate is 0.08°.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A device for machining the toe-in and camber angles of a torsion beam using a single-head horizontal machining center, characterized in that, include: A clamp (100) for holding a torsion beam (600) is mounted on a mounting plate (200); A rotary drive unit (300) is mounted on a single-head horizontal machining center worktable (500), and a mounting plate (200) is mounted on the rotary drive unit (300); The bottom of the pad is installed between the rotary drive unit (300) and the worktable (500); The rotary drive unit (300) is used to drive the mounting plate (200) to rotate the clamp (100), and the bottom of the pad causes the rotary drive unit (300), the mounting plate (200) and the clamp (100) to be tilted relative to the vertical.
2. The apparatus for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to claim 1, characterized in that, The rotary drive unit (300) includes: The main body is installed on the bottom of the pad; A turntable is rotatably mounted on the main body, and an electric drive is installed between the turntable and the main body. The electric drive is used to drive the turntable to rotate on the main body, and the mounting plate (200) is mounted on the turntable.
3. The device for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to claim 2, characterized in that: The turntable is provided with a positioning groove, and the bottom surface of the mounting plate (200) is provided with a positioning block. The mounting plate (200) overlaps the turntable and is fixed by bolts. The positioning block is inserted into the positioning groove.
4. The apparatus for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to any one of claims 1-3, characterized in that: The bottom of the pad is a pad plate (400), which is attached to the workbench (500) and fixed by bolts. The top surface of the pad plate (400) is an inclined surface that is inclined relative to the horizontal plane. The rotary drive unit (300) is attached to the inclined surface and fixed by bolts.
5. The device for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to claim 4, characterized in that: The angle between the inclined surface of the pad (400) and the horizontal plane is α, where 0 < α < 2°.
6. The apparatus for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to claim 5, characterized in that: The angle between the inclined plane of the pad (400) and the horizontal plane is α, where 0.533°≤α≤1.067°.
7. The apparatus for machining the toe-in and camber angle of a torsion beam using a single-head horizontal machining center according to claim 6, characterized in that: The angle between the inclined surface of the pad (400) and the horizontal plane is α, where α = 0.8°.