Mine car front axle boring and milling integrated machining clamp

Abstract

The utility model discloses a boring and milling integrated machining clamp for a front axle of a mine car, which relates to the technical field of machining and is technically characterized by comprising a clamp containing piece, a longitudinal positioning mechanism is arranged at the upper right corner of the clamp containing piece, and a longitudinal auxiliary positioning mechanism is arranged at the lower right corner of the clamp containing piece. A transverse positioning mechanism is arranged at the upper left corner of the clamp containing piece, and a transverse clamping mechanism is arranged at the lower left corner of the clamp containing piece. The automatic positioning device has the technical effects that by arranging the longitudinal self-alignment supporting element and the transverse self-alignment supporting element, automatic and accurate positioning of a blank before machining is achieved, and positioning errors and time cost are reduced; meanwhile, the stability and reliability of positioning are further enhanced through the longitudinal auxiliary positioning mechanism, and deviation in the machining process is prevented; in addition, the transverse clamping mechanism ensures that the blank is stable and does not move in the machining process, machining precision and safety are improved, safe operation of a machine tool and a cutter is guaranteed in an all-around mode, and a solid guarantee is provided for high-quality machining of the mine car front axle.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a boring and milling integrated processing fixture for the front axle of a mining vehicle. Background Art

[0002] The front axle, a core load-bearing component in the vehicle's construction, directly bears the vehicle's weight as well as the various dynamic loads generated during driving. Its design, material selection, and machining quality are directly related to the vehicle's safety, stability, and overall lifespan. In the civilian automotive sector, front axle quality is effectively guaranteed through standardized production processes and rigorous quality control systems. However, when focusing on the specialized application of mine trucks, the performance requirements for the front axle far exceed those of ordinary civilian vehicles. Not only must they handle enormous loads, but they must also operate continuously in harsh conditions such as rugged terrain, dusty conditions, and extreme temperature fluctuations. These operating conditions place extremely high demands on the mine truck front axle's load-bearing capacity, durability, fatigue resistance, and machining precision. Therefore, the machining quality of a mine truck's front axle is not just a technical issue; it is a critical factor directly related to the truck's operating efficiency, operational safety, and economic benefits.

[0003] In the process of machining the front axle of a mine car using a vertical milling machining center, the traditional fixture and clamping methods are often unable to meet the machining requirements because the front axle of a mine car is usually large in size, heavy in weight, and complex in shape. This causes the front axle to easily shift or deform during the machining process, which not only affects the machining accuracy but may also cause damage to the machine tool and cutting tool. Therefore, we propose a new type of integrated boring and milling fixture for the front axle of a mine car. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides an integrated boring and milling processing fixture for the front axle of a mine car, which solves the problem that traditional fixtures and clamping methods are often difficult to meet processing requirements, resulting in the front axle of the mine car being easily displaced or deformed during the processing, which not only affects the processing accuracy, but may also cause damage to the machine tool and cutting tool.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a mining car front axle boring and milling integrated processing fixture, comprising a fixture containing part, wherein the upper right corner of the fixture containing part is provided with a longitudinal positioning mechanism, the lower right corner of the fixture containing part is provided with a longitudinal auxiliary positioning mechanism, the upper left corner of the fixture containing part is provided with a transverse positioning mechanism, and the lower left corner of the fixture containing part is provided with a transverse clamping mechanism;

[0008] The longitudinal positioning mechanism comprises a longitudinal self-positioning support element installation groove, and the inner cavity of the longitudinal self-positioning support element installation groove is threadedly connected with the longitudinal self-positioning support element.

[0009] Preferably, the longitudinal self-positioning support element installation groove is opened at the upper right corner of the clamp receiving part.

[0010] Preferably, the longitudinal auxiliary positioning mechanism includes an auxiliary positioning thrust wedge shaft fixedly installed at the lower right corner of the clamp housing, the inner wall of the auxiliary positioning thrust wedge shaft is threadedly connected to an auxiliary positioning rotating shaft, and the auxiliary positioning thrust shaft and a fixing screw are arranged in sequence from front to back above the auxiliary positioning thrust wedge shaft.

[0011] Preferably, the auxiliary positioning thrust shaft is slidably connected to the clamp receiving part, and the set screw is threadedly connected to the clamp receiving part.

[0012] Preferably, the transverse positioning mechanism comprises a transverse self-positioning support installation groove provided at the upper left corner of the clamp receiving member, and the inner cavity of the transverse self-positioning support installation groove is threadedly connected with a transverse self-positioning support element.

[0013] Preferably, the transverse clamping mechanism comprises a clamping screw threadedly connected to the lower left corner of the clamp receiving member, and a pressure head is fixedly mounted on one end of the clamping screw close to the transverse self-positioning support element.

[0014] Preferably, the pressure head and the transverse self-aligning support element are located on the same vertical plane.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0017] 1. The present invention provides longitudinal and transverse self-positioning support elements, which can automatically adjust their positions to address the problems of rough surfaces of blanks and easy deviation of positioning positions from the center. When the blank is placed on the fixture, the end faces of the self-positioning support elements first contact the blank and, by virtue of their inherent elasticity or adjustability, automatically adjust their positions within a small range, ensuring that the blank can be initially and relatively accurately positioned in both the longitudinal and transverse directions. This automatic adjustment design significantly improves the positioning accuracy and efficiency before processing, and reduces the errors and time costs caused by manual adjustment.

[0018] 2. The utility model is provided with a longitudinal auxiliary positioning mechanism in the longitudinal direction. By operating the auxiliary positioning rotating shaft, the mechanism can flexibly adjust the position of the auxiliary positioning thrust shaft so that it is in close contact with the surface of the blank and applies thrust, thereby achieving more accurate longitudinal positioning. At the same time, the addition of the set screw ensures the stability of the entire auxiliary positioning mechanism after adjustment, preventing positioning deviation caused by vibration or impact during the processing process, thereby improving the stability and reliability of positioning;

[0019] 3. The present invention achieves clamping and securing of the workpiece through the design of a transverse clamping mechanism. This mechanism consists of a clamping screw and a pressure head. The clamping screw is connected to the clamp housing via a trapezoidal thread, allowing the operator to adjust the clamping force according to actual needs. After the workpiece is initially positioned in the transverse direction, the clamping screw is rotated to move the pressure head toward the workpiece and apply a gradually increasing clamping force until the desired clamping effect is achieved. This clamping method is not only simple and effective, but also ensures that the workpiece does not move or deform laterally during machining, thereby improving machining accuracy and safety. It also protects the machine tool and cutting tool from damage that may be caused by workpiece displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 2 This is a structural diagram of the longitudinal auxiliary positioning mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the auxiliary positioning thrust wedge shaft structure of the utility model.

[0023] In the picture:

[0024] 1. Clamp containing parts;

[0025] 2. Longitudinal positioning mechanism; 21. Longitudinal self-positioning support element mounting groove; 22. Longitudinal self-positioning support element;

[0026] 3. Longitudinal auxiliary positioning mechanism; 31. Auxiliary positioning thrust wedge shaft; 32. Auxiliary positioning shaft; 33. Auxiliary positioning thrust shaft; 34. Set screw;

[0027] 4. Horizontal positioning mechanism; 41. Horizontal self-positioning support mounting groove; 42. Horizontal self-positioning support element;

[0028] 5. Horizontal clamping mechanism; 51. Clamping screw; 52. Press head. DETAILED DESCRIPTION

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figures 1 to 3 , the utility model provides a technical solution:

[0031] Example 1

[0032] like Figures 1 to 3 The utility model provides a mining car front axle boring and milling integrated processing fixture, including a fixture containing part 1, a longitudinal positioning mechanism 2 is provided at the upper right corner of the fixture containing part 1, a longitudinal auxiliary positioning mechanism 3 is provided at the lower right corner of the fixture containing part 1, a transverse positioning mechanism 4 is provided at the upper left corner of the fixture containing part 1, and a transverse clamping mechanism 5 is provided at the lower left corner of the fixture containing part 1. The longitudinal positioning mechanism 2 includes a longitudinal self-positioning support element mounting groove 21, and the inner cavity of the longitudinal self-positioning support element mounting groove 21 is threadedly connected to the longitudinal self-positioning support element 22. The longitudinal self-positioning support element mounting groove 21 is opened at the upper right corner of the clamp receiving part 1, and the longitudinal auxiliary positioning mechanism 3 includes an auxiliary positioning thrust wedge shaft 31 fixedly installed at the lower right corner of the clamp receiving part 1, and the inner wall of the auxiliary positioning thrust wedge shaft 31 is threadedly connected with an auxiliary positioning rotating shaft 32, and the auxiliary positioning thrust wedge shaft 31 is sequentially provided with an auxiliary positioning thrust shaft 33 and a fixing screw 34 from front to back. The auxiliary positioning thrust shaft 33 is slidably connected to the clamp receiving part 1, and the fixing screw 34 is threadedly connected to the clamp receiving part 1.

[0033] In this embodiment, the longitudinal positioning mechanism 2 utilizes a core longitudinal self-aligning support element 22, which is securely mounted within the longitudinal self-aligning support element mounting slot 21 via a threaded connection. When the blank is placed on the fixture, the end face of the longitudinal self-aligning support element 22 first contacts the blank. Leveraging its inherent elasticity or adjustability, it automatically makes small adjustments even when the blank's surface is rough or the positioning position is off-center, ensuring preliminary and relatively accurate longitudinal positioning of the blank. This self-aligning support design significantly improves pre-processing positioning efficiency and reduces the errors and time costs associated with manual adjustments.

[0034] The longitudinal auxiliary positioning mechanism 3 is designed on the basis of the longitudinal positioning mechanism 2 in order to further enhance the stability and accuracy of positioning. By operating the auxiliary positioning shaft 32, the position of the auxiliary positioning thrust shaft 33 can be flexibly adjusted so that it is in close contact with the surface of the blank and applies thrust to achieve more precise longitudinal positioning. At the same time, the addition of the set screw 34 ensures the stability of the entire auxiliary positioning mechanism after adjustment, and prevents positioning deviation caused by vibration or impact during the processing process.

[0035] Example 2

[0036] like Figures 1 to 3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the transverse positioning mechanism 4 includes a transverse self-positioning support installation groove 41 opened at the upper left corner of the clamp housing 1, and the inner cavity of the transverse self-positioning support installation groove 41 is threadedly connected to the transverse self-positioning support element 42, and the transverse clamping mechanism 5 includes a clamping screw 51 threadedly connected to the lower left corner of the clamp housing 1, and a pressure head 52 is fixedly installed at one end of the clamping screw 51 close to the transverse self-positioning support element 42, and the pressure head 52 and the transverse self-positioning support element 42 are located on the same vertical plane.

[0037] In this embodiment, the precise positioning and clamping of the blank in the transverse direction are achieved through the coordinated action of the transverse positioning mechanism 4 and the transverse clamping mechanism 5;

[0038] The lateral positioning mechanism 4 includes a lateral self-positioning support mounting groove 41 provided in the upper left corner of the fixture housing 1 and a lateral self-positioning support element 42 threadedly connected to the inner cavity. This design also utilizes the principle of self-positioning. When the blank is placed on the fixture, the lateral self-positioning support element 42 can automatically adjust its position to ensure that the blank is initially and relatively accurately positioned in the lateral direction.

[0039] The transverse clamping mechanism 5 achieves the clamping and fixation of the blank in the transverse direction through the combination of the clamping screw 51 and the pressure head 52. The trapezoidal thread design of the clamping screw 51 makes the rotation operation smoother, which is convenient for the operator to adjust the clamping force according to actual needs. The pressure head 52 and the transverse self-positioning support element 42 are located on the same vertical plane, ensuring the uniform distribution of the clamping force and avoiding the deformation or displacement of the blank due to uneven force during the processing process.

[0040] In specific use, the utility model is used as an integrated boring and milling processing fixture for the front axle of a mine car. During the sharp milling processing of the front axle of the mine car, the longitudinal self-positioning support element 22 and the transverse self-positioning support element 42 are key components, which are respectively installed in the longitudinal self-positioning support element mounting groove 21 and the transverse self-positioning support mounting groove 41 of the fixture housing 1 by screws. The original intention of designing these two self-positioning support elements is to deal with the problems of rough surface of the blank and easy deviation of the positioning position from the center. When the blank is placed on the fixture, the end face of the self-positioning support element first contacts the blank. Since the self-positioning support elements have a certain elasticity or adjustability, they can automatically adjust their positions within a small range to ensure that the blank can be initially and relatively accurately positioned in both the longitudinal and transverse directions. This automatic adjustment capability not only improves the processing efficiency, but also effectively reduces the processing errors caused by inaccurate positioning.

[0041] In order to further enhance the stability and accuracy of longitudinal positioning, a longitudinal auxiliary positioning mechanism 3 is designed. The mechanism is mainly composed of an auxiliary positioning thrust wedge shaft 31, an auxiliary positioning rotating shaft 32, an auxiliary positioning thrust shaft 33 and a set screw 34. After the blank is initially positioned, if it is found that its positioning in the longitudinal direction is still not accurate or stable enough, fine-tuning can be achieved by operating the auxiliary positioning rotating shaft 32. Specifically, the auxiliary positioning rotating shaft 32 is pushed to drive the auxiliary positioning thrust wedge shaft 31 to move horizontally along the direction of the blind hole. Since the auxiliary positioning thrust wedge shaft 31 and the auxiliary positioning are aligned, the auxiliary positioning thrust wedge shaft 33 and the set screw 34 are aligned. There is an inclined surface contact between the auxiliary positioning thrust shaft 33, and this translation will be converted into movement of the auxiliary positioning thrust shaft 33 in the longitudinal direction, so that it contacts the front axle surface of the blank and applies a certain thrust, thereby realizing auxiliary positioning. Subsequently, by twisting the auxiliary positioning rotating shaft 32, it is tightened with the auxiliary positioning thrust wedge shaft 31, and the conical surface of the auxiliary positioning thrust shaft 33 will further expand the conical surface in the auxiliary positioning thrust wedge shaft 31 to achieve the effect of tensioning and fixing. Finally, the set screw 34 is used to further fix the entire mechanism to ensure the stability and reliability of positioning.

[0042] In order to achieve transverse clamping and fixation of the blank, a transverse clamping mechanism 5 is designed. This mechanism mainly consists of a clamping screw 51 and a pressure head 52. The clamping screw 51 is connected to the clamp housing 1 via a trapezoidal thread, allowing the operator to easily adjust its position by rotating the clamping screw 51. After the blank is initially positioned in the transverse direction, the clamping screw 51 is rotated to drive the pressure head 52 toward the blank. When the pressure head 52 contacts the blank, continued rotation of the clamping screw 51 will cause it to apply a gradually increasing clamping force to the blank until the desired clamping effect is achieved. This clamping method is not only simple and effective, but also ensures that the blank will not move or deform laterally during processing, thereby improving processing accuracy and safety.

[0043] In summary, the integrated boring and milling fixture for the mine car front axle proposed in this utility model achieves precise positioning and clamping of the blank in both the longitudinal and transverse directions by integrating various technical means, including self-support, auxiliary positioning, and clamping. This not only improves machining efficiency and precision, but also effectively ensures the safe operation of the machine tool and cutting tool, providing a strong guarantee for the high-quality machining of mine car front axles.

[0044] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A mining car front axle boring and milling integrated processing fixture, comprising a fixture containing part (1), characterized in that: The upper right corner of the clamp containing part (1) is provided with a longitudinal positioning mechanism (2), the lower right corner of the clamp containing part (1) is provided with a longitudinal auxiliary positioning mechanism (3), the upper left corner of the clamp containing part (1) is provided with a transverse positioning mechanism (4), and the lower left corner of the clamp containing part (1) is provided with a transverse clamping mechanism (5); The longitudinal positioning mechanism (2) comprises a longitudinal self-positioning support element installation groove (21), and the inner cavity of the longitudinal self-positioning support element installation groove (21) is threadedly connected to the longitudinal self-positioning support element (22).

2. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 1, characterized in that: The longitudinal self-positioning support element installation groove (21) is provided at the upper right corner of the clamp receiving part (1).

3. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 1, characterized in that: The longitudinal auxiliary positioning mechanism (3) comprises an auxiliary positioning thrust wedge shaft (31) fixedly mounted on the lower right corner of the clamp housing (1); the inner wall of the auxiliary positioning thrust wedge shaft (31) is threadedly connected to an auxiliary positioning rotating shaft (32); and an auxiliary positioning thrust shaft (33) and a set screw (34) are sequentially arranged above the auxiliary positioning thrust wedge shaft (31) from front to back.

4. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 3, characterized in that: The auxiliary positioning thrust shaft (33) is slidably connected to the clamp receiving part (1), and the set screw (34) is threadedly connected to the clamp receiving part (1).

5. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 1, characterized in that: The transverse positioning mechanism (4) comprises a transverse self-positioning support installation groove (41) provided at the upper left corner of the clamp receiving member (1), and the inner cavity of the transverse self-positioning support installation groove (41) is threadedly connected to a transverse self-positioning support element (42).

6. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 5, characterized in that: The transverse clamping mechanism (5) comprises a clamping screw (51) threadedly connected to the lower left corner of the clamp housing (1), and a pressure head (52) is fixedly mounted on one end of the clamping screw (51) close to the transverse self-positioning support element (42).

7. The integrated boring and milling fixture for the front axle of a mining vehicle according to claim 6, characterized in that: The pressure head (52) and the transverse self-positioning support element (42) are located on the same vertical plane.

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