Efficient adjustable scribing supporting device for shafts

Abstract

A base and a roller carrier are connected through a screw, the height of the roller carrier is adjusted by adjusting the length of the screw entering the base, the roller carrier comprises a first extension arm and a second extension arm, the first extension arm and the second extension arm are in mirror symmetry about the straight line where the screw is located, and the included angle between the horizontal planes of the first extension arm and the second extension arm is an acute angle. A first through hole and a second through hole are formed in the roller carrier in a mirror symmetry mode, a first roller shaft and a second roller shaft are installed respectively, a first roller and a second roller are installed correspondingly, at least two roller carriers support a to-be-machined shaft through the first roller and the second roller, rotation can be achieved when the shaft is supported, and a bottom bolt is manually and finely adjusted, so that rotation of the to-be-machined shaft is achieved. The device is simple in structure, convenient to adjust and move, low in manufacturing cost and capable of scribing or checking various different types of shafts, and the centers of the shafts are aligned by matching with the dial indicator, so that the consistency of the multiple supports in the horizontal direction is realized. The device is simple and reliable in structure, convenient to adjust and move and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a high-efficiency adjustable scribing support device for shafts. Background Technology

[0002] Scribing is a common process in crankshaft machining in China. Shafts often deform after heat treatment and rough machining, requiring inspection on a platform. Scribing may be necessary during the machining process. This type of process typically involves supporting the shaft at the same height on a platform, rotating the shaft to align it, determining the center deviations and allowances, and thus establishing the centerline. This necessitates that the support device be able to rotate and its height be finely adjusted.

[0003] Many foreign shaft support devices are mostly used for clamping CNC equipment, which are highly automated but also expensive, and are less commonly used on platforms. Domestic marking platform support devices, some of which also have roller support and adjustable functions, mostly use worm gear structures for adjustment. These support devices are more complex in structure, heavier, and more expensive than this simpler one. Adjustment requires a certain level of operational skill; and crane assistance is needed for handling and repositioning.

[0004] Therefore, a low-cost, simple support device is needed. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency adjustable scribing support device for shafts, which solves the problem of adjusting the support height of shaft structural components during scribing or inspection.

[0006] To solve the above-mentioned technical problems, this utility model provides a high-efficiency adjustable scribing support device for shafts, including a base, a screw, a nut, a roller frame, and a roller shaft. The screw is threadedly connected to the base through a threaded hole in the vertical direction of the base. The height of the roller frame is adjusted by adjusting the length of the screw entering the base. The nut is disposed on the screw and threaded to the screw, used to fix the relative position of the screw and the base after the height adjustment is completed. The top of the screw is connected to the bottom of the roller frame. The roller frame includes a first extension arm and a second extension arm that are mirror-symmetrical about the line where the screw is located. The angle between the first extension arm and the second extension arm and the horizontal plane is an acute angle. The first through hole of the first extension arm and the second through hole of the second extension arm are mirror-symmetrical about the line where the screw is located. The roller shaft includes a first roller shaft disposed in the first through hole and a second roller shaft disposed in the second through hole. A first roller is mounted on the first roller shaft and a second roller is mounted on the second roller shaft. At least two roller frames support the shaft to be processed through the first roller and the second roller.

[0007] The base includes a base body and a boss on the top of the base body. The threaded hole is provided on the boss. The nut is used to fix the relative position of the screw and the boss after the screw has been adjusted in height.

[0008] It also includes a first groove disposed at the end of the first extension arm and a second groove disposed at the end of the second extension arm, wherein the first roller is located in the first groove and the second roller is located in the second groove.

[0009] The system also includes a water platform located at the bottom of the first and second extension arms. The top of the screw is connected to the water platform. The first and second extension arms are hinged to the water platform. A spacing adjustment rod is connected between the first and second extension arms. The spacing adjustment rod controls the included angle between the first and second extension arms by adjusting the spacing between the first and second extension arms connected at both ends.

[0010] This also includes scale markings vertically set on the outer wall of the screw.

[0011] The top of the screw is interference-fitted to the bottom of the roller frame, or the screw and the roller frame are an integral structure.

[0012] This also includes a buffer pad layer disposed at the bottom of the base body.

[0013] The base is a cast iron base or an aluminum alloy base, and the roller frame is a cast iron roller frame or an aluminum alloy roller frame.

[0014] The longitudinal section of the base body is rectangular or isosceles trapezoidal.

[0015] The base body can be a solid base body or a hollow base body.

[0016] The high-efficiency adjustable scribing support device for shafts provided in this embodiment of the invention has the following advantages compared with the prior art:

[0017] The high-efficiency adjustable scribing support device for shafts provided in this embodiment uses a screw to connect the base and the roller frame. The height of the roller frame is adjusted by adjusting the length of the screw entering the boss of the base. The roller frame includes a first extension arm and a second extension arm that are mirror-symmetrical about the line where the screw is located and have an acute angle with the horizontal plane. A first through hole and a second through hole are mirror-symmetrically arranged to install a first roller shaft and a second roller shaft, respectively. A first roller is installed on the first roller shaft and a second roller is installed on the second roller shaft. At least two of the roller frames support the shaft to be processed through the first roller and the second roller, which can realize the rotation of the shaft during support. By manually fine-tuning the bottom bolt and using a dial indicator, the center of the shaft can be aligned to achieve horizontal consistency of multiple supports. This structure is simple and reliable, easy to adjust and move, and has low manufacturing cost. It can scribing or inspect various types of shafts. Attached Figure Description

[0018] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A front structural schematic diagram of an embodiment of the shaft-type high-efficiency adjustable scribing support device provided by this utility model;

[0020] Figure 2 A three-dimensional structural schematic diagram of an embodiment of the high-efficiency adjustable scribing support device for shafts provided by this utility model;

[0021] Among them, 1-base, 2-screw, 3-nut, 4-roller frame, 5-roller shaft, 6-roller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1-2 , Figure 1 A front structural schematic diagram of an embodiment of the shaft-type high-efficiency adjustable scribing support device provided by this utility model; Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the shaft-type high-efficiency adjustable scribing support device provided by this utility model.

[0024] In one specific embodiment, the high-efficiency adjustable scribing support device for shafts includes a base 1, a screw 2, a nut 3, a roller frame 4, and a roller shaft 5. The screw 2 is threadedly connected to the base 1 through a threaded hole in the vertical direction of the base 1. The height of the roller frame 4 is adjusted by adjusting the length of the screw 2 entering the base 1. The top of the screw 2 is connected to the bottom of the roller frame. The roller frame 4 includes a first extension arm and a second extension arm that are mirror-symmetrical about the line where the screw 2 is located. The angle between the first extension arm and the second extension arm and the horizontal plane is an acute angle. The first through hole of the first extension arm and the second through hole of the second extension arm are mirror-symmetrical about the line where the screw 2 is located. The roller shaft 5 includes a first roller shaft disposed in the first through hole and a second roller shaft disposed in the second through hole. A first roller is mounted on the first roller shaft, and a second roller is mounted on the second roller shaft. At least two roller frames support the shaft to be processed through the first roller and the second roller.

[0025] By using a screw 2 to connect the base 1 and the roller frame 4, the height of the roller frame 4 can be adjusted by adjusting the length of the screw 2 entering the base 1. The roller frame 4 includes a first extension arm and a second extension arm that are mirror-symmetrical about the straight line where the screw 2 is located and have an acute angle with the horizontal plane. A first through hole and a second through hole are mirror-symmetrically provided, and a first roller shaft and a second roller shaft are respectively installed. A first roller is installed on the first roller shaft and a second roller is installed on the second roller shaft. At least two of the roller frames support the shaft to be processed through the first roller and the second roller, which can realize the rotation of the shaft during support. By manually fine-tuning the bottom bolts and using a dial indicator, the center of the shaft can be aligned to achieve horizontal consistency of multiple supports. This structure is simple and reliable, easy to adjust and move, and has low manufacturing cost. It can be used to scribing or inspect various types of shafts.

[0026] To further improve practical reliability, reduce the processing of the base itself, and increase the flexibility of use, in one embodiment, the base 1 includes a base body and a boss disposed on the top of the base body, the threaded hole is disposed on the boss, and the nut 3 is used to fix the relative position of the screw 2 and the boss after the screw 2 has completed the height adjustment.

[0027] By setting the threaded hole on the boss, if it is necessary to replace the screw 2 of different diameters, only the boss needs to be replaced, without replacing the entire base, and there is no need to disassemble and move the entire base, which improves the convenience and efficiency of use.

[0028] This application does not limit the material, size, or connection method of the boss to the base body. The boss can be made of the same material as the base body or different materials. The connection between the two can be made by bolt connection, snap-fit, or other methods.

[0029] In this application, by connecting the screw 2 with a nut 3, when height adjustment is required, the position of the nut 3 can be adjusted in advance to a predetermined position, and then the relative position of the screw 2 and the boss can be adjusted, which can improve the adjustment efficiency. At the same time, the nut 3 will also lock the relative position of the screw 2 and the boss, which will improve the efficiency of later use.

[0030] This application does not impose any limitations on the structural dimensions of nut 3.

[0031] In this application, the roller is mounted on the roller frame 4, which can be mounted on one side of the corresponding extension arm. However, this method will reduce the service life of the roller frame 4 due to the force on one side.

[0032] To address the aforementioned technical issues, in one embodiment, the shaft-type high-efficiency adjustable scribing support device further includes a first groove disposed at the end of the first extension arm and a second groove disposed at the end of the second extension arm, wherein the first roller is located within the first groove and the second roller is located within the second groove.

[0033] By setting grooves in the extension arm and placing the rollers within the grooves, the force applied to the rollers will be along the direction of the extension arm, preventing them from tilting to one side and thus improving their service life.

[0034] This application does not limit the structure of the first groove and the second groove.

[0035] Since this application may involve machining shafts of different diameters, in one embodiment, the shaft-type high-efficiency adjustable scribing support device further includes a water platform disposed at the bottom of the first extension arm and the second extension arm, the top of the screw 2 is connected to the water platform, the first extension arm and the second extension arm are hinged to the water platform, and a spacing adjustment rod is connected between the first extension arm and the second extension arm. The spacing adjustment rod controls the included angle between the first extension arm and the second extension arm by adjusting the spacing between the first extension arm and the second extension arm connected at both ends.

[0036] The first and second extension arms are hinged to the water platform, and the included angle between them can be adjusted by the spacing adjustment rod, which can realize the processing of shafts with different diameters and improve the applicability of the product.

[0037] This application includes, but is not limited to, the spacing adjustment rod described above.

[0038] In this application, since the height of the roller frame 4 needs to be precisely adjusted, in one embodiment, the shaft-type high-efficiency adjustable scribing support device also includes a scale mark vertically set on the outer wall of the screw 2.

[0039] By setting scale markings on the outer wall of screw 2, which can be a ruler or different height markers, the height of the roller frame can be precisely adjusted, improving adjustment efficiency.

[0040] This application does not limit the type or setting method of the scale markings.

[0041] In this application, the installation method of the screw 2 and the roller frame is not limited. The top of the screw 2 and the bottom of the roller frame 4 are connected by an interference fit, or the screw 2 and the roller frame 4 are an integral structure.

[0042] This can be achieved by using an intermediate fit to drive the upper cylindrical part of the screw 2 into the bottom hole of the assembled roller frame, then tightening the nut and screwing the whole into the threaded hole of the base 1, or by using an integrated structure, or other methods.

[0043] Because the base 1 will be subjected to the pressure of the aforementioned shaft during use, the mounting position may be damaged.

[0044] To address the aforementioned technical issues, in one embodiment, the shaft-type high-efficiency adjustable scribing support device further includes a buffer pad layer disposed at the bottom of the base body.

[0045] By adding a cushioning layer to the bottom of the base body, the reliability of use can be improved and the installation position will not be damaged.

[0046] This application does not limit the thickness, material, or installation method of the cushioning layer.

[0047] This application does not limit the material of the base 1 and the roller frame. The base 1 is a cast iron base or an aluminum alloy base or a base of other materials. The roller frame 4 is a cast iron roller frame or an aluminum alloy roller frame or a roller frame of other materials.

[0048] The shape of the base 1 is not limited in this application. The longitudinal section of the base body is rectangular or isosceles trapezoid, or other shapes.

[0049] In this application, the main body of the base is mainly for support, and its size is not limited. In order to reduce its weight and improve the portability of transportation, the main body of the base is either a solid base or a hollow base.

[0050] By using a hollow base, the structural weight can be reduced, making it easier to transport and handle, and improving ease of use.

[0051] In one embodiment, the high-efficiency adjustable scribing support device for shafts includes a base 1, a screw 2, a nut 3, a roller frame 4, a roller shaft 5, and rollers 6. The base 1 and roller frame 4 are made of cast iron. The base has a hollow internal structure with a threaded hole machined at the center, and the casting height can be adjusted as needed. The opening of the roller frame 4 and the size of the rollers 6 can be designed according to the diameter of the shaft. The rollers 6 are assembled into the corresponding holes of the roller frame 4 via the roller shaft 5, and lubricating oil is applied to ensure that the rollers 6 can rotate smoothly. The upper cylindrical part of the screw 2 is driven into the bottom hole of the assembled roller frame 4 with an transition fit, and then the nut 3 is screwed on, and the whole device is screwed into the threaded hole of the base 1.

[0052] When in use, two or three supports can be used together. Place them on a platform, pre-adjust to the approximate height, place the shaft to be marked or inspected, and use the dial indicator support to mark the top position of the shaft and move it axially to observe the pointer change. Adjust the height of the support by adjusting the bottom nut 3 with a wrench to make the dial indicator change consistent, thereby adjusting the shaft to the same height.

[0053] In summary, the high-efficiency adjustable scribing support device for shafts provided by this utility model uses a screw connecting the base and the roller frame. The height of the roller frame is adjusted by adjusting the length of the screw entering the base. The roller frame includes a first extension arm and a second extension arm that are mirror-symmetrical about the line where the screw is located and have an acute angle with the horizontal plane. A first through hole and a second through hole are mirror-symmetrically provided, and a first roller shaft and a second roller shaft are respectively installed. A first roller is installed on the first roller shaft, and a second roller is installed on the second roller shaft. At least two of the roller frames support the shaft to be processed through the first roller and the second roller, which can realize the rotation of the shaft during support. By manually fine-tuning the bottom bolts and using a dial indicator, the center of the shaft can be aligned to achieve horizontal consistency of multiple supports. This structure is simple and reliable, easy to adjust and move, and has low manufacturing cost. It can scribing or inspect various types of shafts.

[0054] The above provides a detailed description of the high-efficiency adjustable scribing support device for shafts provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency adjustable scribing support device for shafts, characterized in that, The assembly includes a base, a screw, a nut, a roller frame, and a roller shaft. The screw is threadedly connected to the base via a threaded hole in the vertical direction of the base. The height of the roller frame is adjusted by adjusting the length of the screw entering the base. The nut is located on the screw and threaded to it, used to fix the relative position of the screw and the base after the height adjustment is completed. The top of the screw is connected to the bottom of the roller frame. The roller frame includes a first extension arm and a second extension arm that are mirror-symmetrical about the line where the screw is located. The angle between the first extension arm and the second extension arm and the horizontal plane is an acute angle. The first through hole in the first extension arm and the second through hole in the second extension arm are mirror-symmetrical about the line where the screw is located. The roller shaft includes a first roller shaft located in the first through hole and a second roller shaft located in the second through hole. A first roller is mounted on the first roller shaft, and a second roller is mounted on the second roller shaft. At least two roller frames support the shaft to be processed through the first roller and the second roller.

2. The shaft-type high-efficiency adjustable scribing support device as described in claim 1, characterized in that, The base includes a base body and a boss disposed on the top of the base body. The threaded hole is disposed on the boss. The nut is used to fix the relative position of the screw and the boss after the screw has completed the height adjustment.

3. The shaft-type high-efficiency adjustable scribing support device as described in claim 1 or 2, characterized in that, It also includes a first groove disposed at the end of the first extension arm and a second groove disposed at the end of the second extension arm, wherein the first roller is located in the first groove and the second roller is located in the second groove.

4. The shaft-type high-efficiency adjustable scribing support device as described in claim 3, characterized in that, It also includes a water platform disposed at the bottom of the first extension arm and the second extension arm, the top of the screw being connected to the water platform, the first extension arm and the second extension arm being hinged to the water platform, and a spacing adjustment rod being connected between the first extension arm and the second extension arm. The spacing adjustment rod controls the included angle between the first extension arm and the second extension arm by adjusting the spacing between the first extension arm and the second extension arm connected at both ends.

5. The shaft-type high-efficiency adjustable scribing support device as described in claim 4, characterized in that, It also includes scale markings vertically set on the outer wall of the screw.

6. The shaft-type high-efficiency adjustable scribing support device as described in claim 5, characterized in that, The top of the screw is interference-fitted to the bottom of the roller frame, or the screw and the roller frame are an integral structure.

7. The shaft-type high-efficiency adjustable scribing support device as described in claim 6, characterized in that, It also includes a cushioning pad layer disposed at the bottom of the base body.

8. The shaft-type high-efficiency adjustable scribing support device as described in claim 7, characterized in that, The base is a cast iron base or an aluminum alloy base, and the roller frame is a cast iron roller frame or an aluminum alloy roller frame.

9. The shaft-type high-efficiency adjustable scribing support device as described in claim 8, characterized in that, The longitudinal section of the base body is rectangular or isosceles trapezoidal.

10. The shaft-type high-efficiency adjustable scribing support device as described in claim 9, characterized in that, The base body can be a solid base body or a hollow base body.

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