Crankshaft processing machine tool

Abstract

The utility model provides a crankshaft processing machine tool, which belongs to the technical field of processing equipment, and comprises a base, a crankshaft, a crankshaft, a crankshaft and a crankshaft, the main shaft box and the auxiliary shaft box are both arranged on the inclined plane, are linearly distributed and can be relatively close to or far away from each other; and the support seat is arranged on the base, an inclined mounting surface is arranged on the support seat, so that machining scraps can slide down under the action of gravity, the inclined surface is located below the mounting surface, and in the vertical direction, the projection of the inclined surface and the projection of the mounting surface have an overlapping area. The chip removal device has the advantages that the inclined surface of the base extends upwards and extends below the mounting surface which is obliquely arranged on the bracket seat, so that a continuous and stepped chip removal channel which is downwards inclined is formed. Cuttings generated by machining firstly slide down along the mounting surface on the bracket seat, then fall into the inclined surface below the mounting surface, and continuously slide and are discharged under the action of gravity. And chip accumulation or clamping stagnation is avoided, and the chip removal efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of processing equipment technology, and in particular relates to a crankshaft processing machine tool. Background Technology

[0002] As a core component in power units such as internal combustion engines and compressors, crankshafts require high-precision turning, milling, or grinding. In existing technologies, traditional crankshaft machining tools mostly employ a horizontal bed layout, with the main head and auxiliary head fixedly or slidingly mounted on the bed to clamp the crankshaft ends and achieve synchronous drive. However, during actual machining, metal chips generated from cutting (especially continuous ribbon-like or coiled chips) easily accumulate in the tool area, guide rail surface, and inside the bed. If these chips are not effectively removed in a timely manner, they can easily cause secondary tool scratches, workpiece surface scratches, and even movement jamming, severely affecting machining quality and equipment lifespan. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a crankshaft machining tool that avoids chip accumulation.

[0004] The objective of this utility model can be achieved through the following technical solution: a crankshaft machining tool, comprising:

[0005] The base has an inclined surface on its upper surface;

[0006] The main spindle box and the auxiliary spindle box are both arranged on the inclined surface, and the main spindle box and the auxiliary spindle box are linearly distributed, and they can be relatively close to or far apart from each other;

[0007] A support base is disposed on the base, and the support base has an inclined mounting surface, allowing machining waste to slide down under gravity. The inclined surface is located below the mounting surface, and in the vertical direction, the projection of the inclined surface overlaps with the projection of the mounting surface. Two machining cutter heads are disposed on the mounting surface. A first slider is fixedly disposed on the support base, and at least two first slide rails are fixedly disposed on the base. The first slider slides in cooperation with the first slide rails, and the support surface of the first slide rails is located in the horizontal direction.

[0008] In the aforementioned crankshaft machining tool, a second slide rail is provided on the base, and a second slider is fixedly provided on both the main spindle box and the auxiliary spindle box. The second slider slides in slidable engagement with the second slide rail, and a protective cover is provided on the base covering the second slide rail. The upper surface of the protective cover is inclined.

[0009] In the aforementioned crankshaft machining tool, a first baffle plate extending vertically upward is fixedly installed on the protective cover, and a second baffle plate extending vertically downward is installed on the support base. The straight-line distance between the second baffle plate and the spindle box is less than the straight-line distance between the first baffle plate and the spindle box. The first baffle plate and the second baffle plate are arranged alternately in the vertical direction to form an obstacle maze.

[0010] In the aforementioned crankshaft machining tool, the inclination direction of the mounting surface is consistent with the inclination direction of the inclined surface, and the angle between the inclined surface and the horizontal plane is smaller than the angle between the mounting surface and the horizontal plane.

[0011] In the aforementioned crankshaft machining tool, a transmission chain plate is provided on the side of the base along the length extension direction of the base. The transmission chain plate is closely attached to the base and is located below the upper surface of the base.

[0012] In the aforementioned crankshaft machining machine tool, a mounting bracket is slidably arranged on the second slide rail, and a support bracket is fixedly arranged on the mounting bracket. The support bracket is used to provide rotational support for the machined crankshaft.

[0013] In the aforementioned crankshaft machining tool, a plurality of abutting rollers are provided on the support frame. When the support frame is connected to the crankshaft being machined, the abutting rollers are in contact with the crankshaft being machined.

[0014] In the aforementioned crankshaft machining tool, the mounting bracket includes a mounting plate, the plane of which is perpendicular to the plane of which the base is located, and the support frame has mounting holes. Set screws pass through the mounting holes and are screwed onto the mounting plate to fix the mounting plate to the support frame, and the relative position of the set screws in the mounting holes is adjustable.

[0015] In the aforementioned crankshaft machining tool, there are multiple mounting holes, which are arranged in a matrix on the support frame.

[0016] In the aforementioned crankshaft machining tool, the spindle box includes a drive motor and a planetary reducer. The drive motor is driven and connected to the planetary reducer, which is used for transmission connection with the spindle.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) The inclined surface of the base extends upward and into the underside of the inclined mounting surface on the support, forming a continuous, stepped, downward-sloping chip removal channel. The chips generated during processing first slide down along the mounting surface on the support, then fall onto the inclined surface below, and continue to slide and be discharged under the action of gravity. This avoids chip accumulation or jamming, and significantly improves chip removal efficiency;

[0019] (2) The support surface of the first slide rail is arranged in the horizontal direction to ensure that the bearing surface of the motion guide system is in a horizontal state. This design allows the main vertical load during the cutting process to act directly on the bearing surface of the slide rail without lateral component force, thereby improving the load-bearing capacity and service life of the guide rail system. Attached Figure Description

[0020] Figure 1 It is a three-dimensional structural diagram of the machine tool;

[0021] Figure 2 yes Figure 1 Internal structure diagram;

[0022] Figure 3 yes Figure 2 A magnified schematic diagram of the local structure at point A;

[0023] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure.

[0024] In the diagram, 100 is the base; 101 is the inclined surface; 102 is the first slide rail; 103 is the second slide rail; 200 is the main spindle box; 201 is the secondary spindle box; 202 is the second slider; 203 is the drive motor; 204 is the planetary reducer; 300 is the bracket seat; 301 is the mounting surface; 302 is the machining cutter head; 303 is the first slider; 304 is the first baffle plate; 400 is the protective cover; 401 is the second baffle plate; 500 is the transmission chain plate; 600 is the mounting bracket; 601 is the support frame; 602 is the abutment roller; 603 is the set screw; and 604 is the mounting plate. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] like Figures 1-4As shown, a crankshaft machining tool includes:

[0028] The base 100 has an inclined surface 101 on its upper surface;

[0029] The main spindle box 200 and the auxiliary spindle box 201 are both set on the inclined surface 101, and the main spindle box 200 and the auxiliary spindle box 201 are linearly distributed, and they can be relatively close to or far apart from each other.

[0030] A support base 300 is mounted on a base 100, and the support base 300 has an inclined mounting surface 301, which allows machining chips to slide down under gravity. The inclined surface 101 is located below the mounting surface 301, and in the vertical direction, the projection of the inclined surface 101 overlaps with the projection of the mounting surface 301. Two machining cutter heads 302 are mounted on the mounting surface 301, each of which is driven by an independent spindle and can achieve synchronous rotation or independent control to adapt to different machining trajectory requirements of the crankshaft. A first slider 303 is fixedly mounted on the support base 300, and at least two first slide rails 102 are fixedly mounted on the base 100. The first slider 303 slides in cooperation with the first slide rails 102, and the support surface of the first slide rails 102 is set in the horizontal direction.

[0031] In this embodiment, the inclined surface 101 of the base 100 extends upward and extends below the inclined mounting surface 301 on the support 300, forming a continuous, stepped, downwardly inclined chip removal channel. The chips generated during processing first slide down along the mounting surface 301 on the support 300, then fall onto the inclined surface 101 below, and continue to slide and be discharged under gravity. This avoids chip accumulation or jamming, significantly improving chip removal efficiency.

[0032] The support surface of the first slide rail 102 is arranged horizontally to ensure that the bearing surface of the motion guide system is in a horizontal state. This design allows the main vertical loads during the cutting process to act directly on the bearing surface of the slide rail, without lateral force components, thus improving the load-bearing capacity and service life of the guide rail system.

[0033] Furthermore, a second slide rail 103 is provided on the base 100, and a second slider 202 is fixedly provided on both the main spindle box 200 and the auxiliary spindle box 201. The second slider 202 slides in cooperation with the second slide rail 103, so that the main spindle box 200 and the auxiliary spindle box 201 can move relative to each other on the inclined surface 101, thereby realizing flexible clamping and positioning of crankshaft workpieces of different lengths and improving the processing adaptability of the machine tool.

[0034] Furthermore, a protective cover 400 is provided on the base 100 and covers the second slide rail 103. The upper surface of the protective cover 400 is inclined, and its inclination direction is parallel to the inclination direction of the inclined surface 101. This allows the chips and coolant falling on the protective cover 400 to slide naturally down the inclined surface under the action of gravity, without accumulating on the surface of the cover, thus maintaining a clean appearance.

[0035] The protective cover 400 includes partial protective covers mounted on the main spindle box 200 and the auxiliary spindle box 201, as well as an adjustable protective armor. The two ends of the protective armor are fixedly connected to the partial protective covers on the main spindle box 200 and the auxiliary spindle box 201, respectively, forming a continuous, closed protective barrier that effectively prevents chips, coolant, and dust generated during machining from falling between the slide rail and the slider. Furthermore, the protective armor can be adaptively adjusted in length through telescopic or folding structures.

[0036] By extending the second baffle plate 401 downwards from the support base 300, close to the surface of the base 100, and the first baffle plate 304 extending upwards from the protective cover 400, close to the bottom of the support base 300, the two are spatially staggered and overlapped, forming a tortuous blocking path. When chips attempt to enter the gap between the support base 300 and the base 100 laterally, they must pass through this labyrinthine channel, their movement trajectory is blocked multiple times, and finally, under the action of gravity, they fall back to the chip discharge channel below.

[0037] Furthermore, the tilting direction of the mounting surface 301 is consistent with the tilting direction of the tilting surface 101, and the angle between the tilting surface 101 and the horizontal plane is smaller than the angle between the mounting surface 301 and the horizontal plane.

[0038] In this application, the mounting surface 301 on the bracket 300 and the inclined surface 101 on the upper surface of the base 100 have the same inclination direction, ensuring a continuous and unobstructed path for the chips during their descent, and preventing chip accumulation or splashing due to abrupt changes in direction. Crucially, the angle between the mounting surface 301 and the horizontal plane is greater than the angle between the inclined surface 101 and the horizontal plane, meaning the mounting surface 301 has a larger inclination angle. This design allows the chips to initially slide down from the large-angle mounting surface 301, utilizing the larger slope for rapid and accelerated discharge, reducing chip dwell time. They then fall onto the lower inclined surface 101, where a smaller inclination angle forms a buffer zone, ensuring the chips continue to slide down while preventing excessive inclination angles from causing chips to fly out or generate severe impact noise.

[0039] Along the length of the base 100, a drive chain plate 500 is provided on the side of the base 100. The drive chain plate 500 is set close to the base 100 and is located below the upper surface of the base 100. It is used to receive and continuously transport the chips generated during the processing. The chips are stably and reliably transported to a waste collection box or centralized chip removal system at a distance, reducing manual cleaning time.

[0040] This application provides a mounting bracket 600 slidably mounted on the second slide rail 103. The mounting bracket 600 is equipped with a support frame 601, which provides auxiliary rotational support for the crankshaft body during machining. By adjusting the position of the mounting bracket 600 on the second slide rail 103, it can adapt to the machining requirements of crankshafts with different crank distributions or different lengths, effectively improving the clamping rigidity and structural stability of the workpiece and suppressing vibration and deformation caused by excessive cantilever length. Furthermore, the support frame 601 is equipped with multiple abutting rollers 602, which abut against the outer surface of the crankshaft and roll synchronously during crankshaft rotation. This rolling support method reduces the sliding friction resistance and surface damage risk associated with traditional fixed supports. Simultaneously, the multiple rollers are arranged symmetrically or in a multi-point encircling pattern, improving contact stability and load uniformity.

[0041] Specifically, the mounting bracket 600 includes a mounting plate 604, the plane of which is perpendicular to the plane of the base 100, forming a stable vertical load-bearing structure. This improves the bending and torsional stiffness of the support bracket 601, ensuring it is not easily deformed or loosened when subjected to radial cutting forces from the crankshaft. The support bracket 601 has multiple mounting holes, through which set screws 603 pass and are screwed onto the mounting plate 604, achieving a detachable fixed connection between the support bracket 601 and the mounting plate 604. Since the relative position of the set screws 603 within the mounting holes is adjustable, this allows for fine-tuning of the support bracket 601 relative to the mounting plate 604, thereby precisely aligning it with the crankshaft's centerline or a specific support position. Furthermore, the number of mounting holes is multiple and they are distributed in a matrix on the support bracket 601, enabling the support bracket 601 to be installed and adapted at multiple positions on the mounting plate 604.

[0042] Both the main spindle box 200 and the counterspindle box 201 include a drive motor 203 and a planetary reducer 204. The output end of the drive motor 203 is connected to the planetary reducer 204, and the output end of the planetary reducer 204 is connected to the main spindle, forming a complete power transmission chain. By reducing the speed of the drive motor 203 and increasing the torque through the planetary reducer 204, the output torque of the main spindle at low speeds is significantly improved, meeting the demand for large cutting forces in rough turning, heavy milling, and other processes, and effectively avoiding stoppage or machining errors caused by sudden load changes. At the same time, the planetary reducer 204 has advantages such as high transmission accuracy, small backlash, and strong load-bearing capacity, which can ensure the transmission stability and dynamic response characteristics of the main spindle under long-term heavy-load operation, ensuring machining accuracy and surface consistency.

[0043] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A crankshaft machining tool, characterized in that, include: The base has an inclined surface on its upper surface; The main spindle box and the auxiliary spindle box are both arranged on the inclined surface, and the main spindle box and the auxiliary spindle box are linearly distributed, and they can be relatively close to or far apart from each other; A support base is disposed on the base, and the support base has an inclined mounting surface, allowing machining waste to slide down under gravity. The inclined surface is located below the mounting surface, and in the vertical direction, the projection of the inclined surface overlaps with the projection of the mounting surface. Two machining cutter heads are disposed on the mounting surface. A first slider is fixedly disposed on the support base, and at least two first slide rails are fixedly disposed on the base. The first slider slides in cooperation with the first slide rails, and the support surface of the first slide rails is located in the horizontal direction.

2. The crankshaft machining tool according to claim 1, characterized in that, The base is provided with a second slide rail, and the main spindle box and the auxiliary spindle box are both fixedly provided with a second slider. The second slider slides in slidable engagement with the second slide rail, and the base is provided with a protective cover covering the second slide rail. The upper surface of the protective cover is inclined.

3. A crankshaft machining tool according to claim 2, characterized in that, A first baffle plate extending vertically upward is fixedly installed on the protective cover, and a second baffle plate extending vertically downward is installed on the support base. The straight-line distance between the second baffle plate and the spindle box is less than the straight-line distance between the first baffle plate and the spindle box. The first baffle plate and the second baffle plate are arranged alternately in the vertical direction to form an obstacle maze.

4. A crankshaft machining tool according to claim 1, characterized in that, The tilt direction of the mounting surface is consistent with the tilt direction of the inclined surface, and the angle between the inclined surface and the horizontal plane is smaller than the angle between the mounting surface and the horizontal plane.

5. A crankshaft machining tool according to claim 1, characterized in that, Along the length of the base, a transmission chain plate is provided on the side of the base, the transmission chain plate is provided close to the base and is located below the upper surface of the base.

6. A crankshaft machining tool according to claim 2, characterized in that, A mounting bracket is slidably mounted on the second slide rail, and a support frame is fixedly mounted on the mounting bracket. The support frame is used to provide rotational support for the machined crankshaft.

7. A crankshaft machining tool according to claim 6, characterized in that, The support frame is provided with multiple abutting rollers. When the support frame is connected to the machining crankshaft, the abutting rollers are in contact with the machining crankshaft.

8. A crankshaft machining tool according to claim 6, characterized in that, The mounting bracket includes a mounting plate, the plane of which is perpendicular to the plane of which the base is located, and the support frame has mounting holes. Set screws pass through the mounting holes and are screwed to the mounting plate to fix the mounting plate to the support frame, and the relative position of the set screws in the mounting holes is adjustable.

9. A crankshaft machining tool according to claim 8, characterized in that, The number of mounting holes is multiple, and the multiple mounting holes are distributed in a matrix on the support frame.

10. A crankshaft machining tool according to claim 1, characterized in that, The spindle box includes a drive motor and a planetary reducer. The drive motor is driven and connected to the planetary reducer, which is used for transmission connection with the spindle.

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