Straightening tool for slender shaft

Abstract

The utility model relates to the technical field of shaft machining, and discloses a straightening tool for a slender shaft, which comprises a machining table, movable plates are slidably connected to the two ends of the interior of the machining table, a positioning assembly is arranged at one end of each movable plate, and each positioning assembly comprises a shell, a hydraulic cylinder, a sliding block, a first positioning wheel, a connecting rod, a second positioning wheel, a rolling wheel and a spring. And the shell is arranged at the top of one end of the movable plate. According to the straightening tool for the slender shaft, by arranging the positioning assembly, the two ends of a long shaft can be placed at the top of the positioning assembly to be fixed, the long shafts with different diameters can be fixed, and after the two ends of the long shaft are placed at the top of the shell, a hydraulic cylinder is started to push a sliding block to move upwards; the two positioning assemblies are arranged and can drive the first positioning wheel and the second positioning wheel to move towards the long shaft at the same time, the long shaft is clamped and positioned, the distance between the two positioning assemblies can be adjusted by arranging the adjusting assemblies, and therefore the long shafts with different lengths are fixed.

Description

Technical Field

[0001] This utility model relates to the field of shaft processing technology, specifically to a straightening fixture for slender shafts. Background Technology

[0002] During the machining process of shafts, straightening machines are used to straighten the shafts to a certain extent. In particular, slender shafts are often bent during machining due to their excessive length, so straightening machines are needed to straighten them.

[0003] According to application number 201821698260.0, a shaft straightening device is disclosed, including a base, two supporting columns at both ends of the base, two ejector pins positioned opposite each other between the two supporting columns, a positioning block on the base directly below the end of the movable ejector pin and the end of the fixed ejector pin, a frame on the side of the base between the two positioning blocks, a cross arm at the top of the frame, a vertically upward threaded hole on the cross arm, a lead screw in the threaded hole, a turntable at the top of the lead screw, a straightening pressure block at the bottom of the lead screw, a connecting rod on the frame above the horizontal position of the two ejector pins, and a dial indicator on the connecting rod. This shaft straightening device, through its reasonable structural design, effectively improves the measurement and straightening accuracy of the shaft, and allows for repeated measurement and straightening, is simple and convenient, and improves operational efficiency and stability.

[0004] The following problems still exist in actual use:

[0005] The above-mentioned device uses a design with fixed and movable ejector pins to fix the straightened shaft on two ejector pins. However, since the shafts are of different lengths, it is not possible to install the shaft at both ends for some longer shafts. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a straightening fixture for slender shafts, which has the advantage of being able to fix and install shafts of different lengths, thus solving the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a straightening fixture for a slender shaft, including a processing table, wherein movable plates are slidably connected to both ends of the processing table, and a positioning component is provided at one end of the movable plate;

[0008] The positioning assembly includes a housing, a hydraulic cylinder, a slider, a first positioning wheel, a connecting rod, a second positioning wheel, a roller, and a spring. The housing is located at the top of one end of the movable plate, and the bottom of the housing is equipped with a hydraulic cylinder. The output shaft of the hydraulic cylinder is equipped with a slider, and the top of the slider is equipped with the first positioning wheel. Connecting rods are provided on both inner walls of the housing. The top of the connecting rod is equipped with the second positioning wheel, and the bottom of the connecting rod is equipped with a roller. A spring is provided between the bottom ends of the two connecting rods.

[0009] Preferably, the processing table is internally equipped with an adjustment assembly, which includes a fixed plate, a slide groove, a first connecting rod, a second connecting rod, a connecting seat, and a drive motor. The fixed plate is fixedly connected to the inside of the processing table. The upper surface of the fixed plate has a slide groove. The first connecting rod is slidably connected inside the slide groove. The two ends of the first connecting rod are movably connected to the second connecting rod. One end of the second connecting rod is movably connected to the connecting seat. The two connecting seats are respectively fixedly connected to two movable plates. The bottom of the processing table is fixedly installed with a drive motor, and the output shaft of the drive motor passes through the fixed plate and is fixedly connected to the first connecting rod.

[0010] Preferably, the housing is fixedly connected to the top of the movable plate, the hydraulic cylinder is fixedly connected to the top of the housing, the slider is fixedly connected to the output shaft of the hydraulic cylinder, the first positioning wheel is rotatably connected to the top of the slider, the connecting rod is rotatably connected to the inner wall of the housing, the second positioning wheel is rotatably connected to the top of the connecting rod, the roller is rotatably connected to the bottom of the connecting rod, and the two ends of the spring are fixedly connected to the two connecting rods respectively.

[0011] Preferably, the roller is in contact with the inclined portion of the slider.

[0012] Preferably, the top of the processing table is fixedly connected to several support plates.

[0013] Preferably, a frame is fixedly connected to one side of the processing table, and a linear motor is fixedly installed on one side of the frame.

[0014] Preferably, a cylinder is slidably connected to the surface of the linear motor, and a punch head is fixedly connected to the output end of the cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The straightening fixture for the slender shaft is equipped with a positioning component, which can fix the two ends of the long shaft on the top of the positioning component. It can fix long shafts of different diameters. After the two ends of the long shaft are placed on the top of the housing, the hydraulic cylinder is activated to push the slider upward, which can drive the positioning wheel one and positioning wheel two to move towards the long shaft at the same time, clamping and positioning the long shaft.

[0017] 2. The straightening fixture for the slender shaft is equipped with an adjustment component, which can adjust the distance between the two positioning components to fix the shafts of different lengths. By starting the drive motor, the first connecting rod rotates, which, together with the second connecting rod and the connecting seat, simultaneously moves the two movable plates closer and further apart, thus adjusting the distance between the two positioning components. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a straightening fixture for a slender shaft provided by this utility model;

[0019] Figure 2 A front view schematic diagram of a device for straightening a slender shaft provided by this utility model;

[0020] Figure 3 A schematic diagram of the positioning component structure of a straightening fixture for a slender shaft provided by this utility model;

[0021] Figure 4 A schematic diagram of the internal structure of the machining table for a straightening fixture for a slender shaft provided by this utility model;

[0022] Figure 5 A schematic diagram of the adjustment component structure of a straightening fixture for a slender shaft provided by this utility model.

[0023] In the diagram: 1. Processing table; 2. Movable plate; 3. Positioning assembly; 301. Housing; 302. Hydraulic cylinder; 303. Slider; 304. Positioning wheel one; 305. Connecting rod; 306. Positioning wheel two; 307. Roller; 308. Spring; 4. Adjustment assembly; 401. Fixed plate; 402. Slide groove; 403. Connecting rod one; 404. Connecting rod two; 405. Connecting seat; 406. Drive motor; 5. Support plate; 6. Frame; 7. Linear motor; 8. Cylinder; 9. Punching head. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 3A straightening fixture for a slender shaft includes a processing table 1. Movable plates 2 are slidably connected to both ends of the processing table 1. A positioning component 3 is provided at one end of the movable plate 2. The positioning component 3 includes a housing 301, a hydraulic cylinder 302, a slider 303, a first positioning wheel 304, a connecting rod 305, a second positioning wheel 306, a roller 307, and a spring 308. The housing 301 is located at the top of one end of the movable plate 2. The hydraulic cylinder 302 is located at the bottom of the housing 301. A slider 303 is located on the output shaft of the hydraulic cylinder 302. A first positioning wheel 304 is located at the top of the slider 303. Connecting rods 305 are provided on both inner walls of the housing 301. A second positioning wheel 306 is located at the top of the connecting rod 305, and a roller 307 is located at the bottom of the connecting rod 305. A spring 308 is located between the bottom ends of the two connecting rods 305.

[0026] By setting the positioning component 3, the two ends of the long shaft can be placed on the top of the positioning component 3 for fixation. Long shafts of different diameters can be fixed. After the two ends of the long shaft are placed on the top of the housing 301, the slider 303 is pushed upward by starting the hydraulic cylinder 302, which can drive the positioning wheel 1 304 and positioning wheel 2 306 to move towards the long shaft at the same time, clamping and positioning the long shaft.

[0027] Please see Figures 1 to 3 The housing 301 is fixedly connected to the top of the movable plate 2, the hydraulic cylinder 302 is fixedly connected to the top of the housing 301, the slider 303 is fixedly connected to the output shaft of the hydraulic cylinder 302, the positioning wheel 1 304 is rotatably connected to the top of the slider 303, the connecting rod 305 is rotatably connected to the inner wall of the housing 301, the positioning wheel 2 306 is rotatably connected to the top of the connecting rod 305, the roller 307 is rotatably connected to the bottom of the connecting rod 305, the two ends of the spring 308 are fixedly connected to the two connecting rods 305 respectively, and the roller 307 is in contact with the inclined part of the slider 303.

[0028] The two ends of the long shaft are placed on the top of the housing 301, and the hydraulic cylinder 302 is activated to push the slider 303 upward. At the same time, the positioning wheel 304 moves upward and contacts the bottom of the long shaft. During the upward movement of the slider 303, the rollers 307 at both ends can be pushed, so that the connecting rod 305 rotates on the inner wall of the housing 301, which drives the positioning wheel 306 to move in the direction of the long shaft. Finally, the two positioning wheels 306 are brought into contact with the two sides of the long shaft, and the long shaft is positioned.

[0029] Please see Figures 4 to 5The processing table 1 is equipped with an adjustment component 4. The adjustment component 4 includes a fixed plate 401, a slide groove 402, a first connecting rod 403, a second connecting rod 404, a connecting seat 405, and a drive motor 406. The fixed plate 401 is fixedly connected to the inside of the processing table 1. The upper surface of the fixed plate 401 is provided with a slide groove 402. The first connecting rod 403 is slidably connected inside the slide groove 402. The two ends of the first connecting rod 403 are movably connected to the second connecting rod 404. One end of the second connecting rod 404 is movably connected to the connecting seat 405. The two connecting seats 405 are fixedly connected to the two movable plates 2 respectively. The drive motor 406 is fixedly installed at the bottom of the processing table 1. The output shaft of the drive motor 406 passes through the fixed plate 401 and is fixedly connected to the first connecting rod 403.

[0030] By setting the adjustment component 4, the distance between the two positioning components 3 can be adjusted, thereby fixing the long shafts of different lengths. By starting the drive motor 406, the connecting rod 1 403 is rotated, which, together with the connecting rod 2 404 and the connecting seat 405, simultaneously drives the two movable plates 2 to move closer and further apart, that is, to adjust the distance between the two positioning components 3.

[0031] Please see Figure 1 The top of the processing table 1 is fixedly connected to several support plates 5. A frame 6 is fixedly connected to one side of the processing table 1. A linear motor 7 is fixedly installed on one side of the frame 6. A cylinder 8 is slidably connected to the surface of the linear motor 7. A punching head 9 is fixedly connected to the output end of the cylinder 8.

[0032] After the long shaft is positioned, the linear motor 7 drives the cylinder 8 to slide, which can adjust the position of the stamping head 9. Then, the cylinder 8 impacts the stamping head 9 downward to stamp the surface of the long shaft and straighten the bent position of the long shaft.

[0033] In this invention, the working principle of the device is as follows:

[0034] In use, firstly, the distance between the two positioning components 3 is adjusted according to the length of the long shaft so that the positioning components 3 can position the two ends of the long shaft. By starting the drive motor 406, the connecting rod 1 403 can be rotated. At the same time, in conjunction with the connecting rod 2 404, the two connecting seats 405 can be moved closer and further apart, and the two movable plates 2 can be moved closer and further apart. The distance between the two movable plates 2 can be adjusted, that is, the distance between the two positioning components 3 can be adjusted. When the connecting rod 1 403 rotates, it slides in the slide groove 402, which can increase stability.

[0035] After adjusting the distance between the two positioning components 3, place both ends of the long shaft on the top of the housing 301, and push the slider 303 upward by starting the hydraulic cylinder 302. At the same time, the positioning wheel 304 moves upward and contacts the bottom of the long shaft. During the upward movement of the slider 303, it can push the rollers 307 at both ends, so that the connecting rod 305 rotates on the inner wall of the housing 301, driving the positioning wheel 306 to move in the direction of the long shaft. Finally, the two positioning wheels 306 are brought into contact with the two sides of the long shaft, positioning the long shaft. Then, the linear motor 7 drives the cylinder 8 to slide, which can adjust the position of the punch head 9. The cylinder 8 then impacts the punch head 9 downward, punching the surface of the long shaft and straightening the bent position of the long shaft. The support plate 5 can support the two ends of the bent position of the long shaft to prevent the long shaft from breaking.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A straightening fixture for a slender shaft, comprising a machining table (1), characterized in that, The processing table (1) has movable plates (2) slidably connected to both ends inside, and a positioning component (3) is provided at one end of the movable plate (2); The positioning component (3) includes a housing (301), a hydraulic cylinder (302), a slider (303), a positioning wheel (304), a connecting rod (305), a positioning wheel (306), a roller (307), and a spring (308). The housing (301) is located at the top of one end of the movable plate (2). The bottom of the housing (301) is provided with a hydraulic cylinder (302). The output shaft of the hydraulic cylinder (302) is provided with a slider (303). The top of the slider (303) is provided with a positioning wheel (304). The inner walls on both sides of the housing (301) are provided with connecting rods (305). The top of the connecting rod (305) is provided with a positioning wheel (306). The bottom of the connecting rod (305) is provided with a roller (307). A spring (308) is provided between the bottom ends of the two connecting rods (305).

2. The straightening fixture for a slender shaft according to claim 1, characterized in that: The processing table (1) is equipped with an adjustment component (4). The adjustment component (4) includes a fixed plate (401), a slide groove (402), a connecting rod one (403), a connecting rod two (404), a connecting seat (405), and a drive motor (406). The fixed plate (401) is fixedly connected to the inside of the processing table (1). The upper surface of the fixed plate (401) is provided with a slide groove (402). The sliding groove (402) is slidably connected to the inside of the slide groove (402). The two ends of the connecting rod one (403) are movably connected to the connecting rod two (404). One end of the connecting rod two (404) is movably connected to the connecting seat (405). The two connecting seats (405) are fixedly connected to the two movable plates (2) respectively. The drive motor (406) is fixedly installed at the bottom of the processing table (1). The output shaft of the drive motor (406) passes through the fixed plate (401) and is fixedly connected to the connecting rod one (403).

3. The straightening fixture for a slender shaft according to claim 1, characterized in that: The housing (301) is fixedly connected to the top of the movable plate (2), the hydraulic cylinder (302) is fixedly connected to the top of the housing (301), the slider (303) is fixedly connected to the output shaft of the hydraulic cylinder (302), the first positioning wheel (304) is rotatably connected to the top of the slider (303), the connecting rod (305) is rotatably connected to the inner wall of the housing (301), the second positioning wheel (306) is rotatably connected to the top of the connecting rod (305), the roller (307) is rotatably connected to the bottom of the connecting rod (305), and the two ends of the spring (308) are fixedly connected to the two connecting rods (305) respectively.

4. The straightening fixture for a slender shaft according to claim 1, characterized in that: The roller (307) is in contact with the inclined portion of the slider (303).

5. The straightening fixture for a slender shaft according to claim 1, characterized in that: Several support plates (5) are fixedly connected to the top of the processing table (1).

6. The straightening fixture for a slender shaft according to claim 1, characterized in that: A frame (6) is fixedly connected to one side of the processing table (1), and a linear motor (7) is fixedly installed on one side of the frame (6).

7. The straightening fixture for a slender shaft according to claim 6, characterized in that: A cylinder (8) is slidably connected to the surface of the linear motor (7), and a punch head (9) is fixedly connected to the output end of the cylinder (8).

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