Piston rod straightening device

Abstract

The utility model discloses a piston rod straightening device which comprises a shell, sliding rails are arranged on the inner wall of the shell and located on the two sides, the two sliding rails are arranged, sliding blocks are arranged in the sliding rails in a sliding mode, adjusting plates are fixedly arranged at the upper ends of the sliding blocks, bearing seats are arranged in the middles of the two sliding rails, and the bearing seats are arranged in the middle of the shell. A lead screw is rotationally arranged in the bearing seat, the other end of the lead screw is rotationally installed on the shell, first motors are arranged on the two side faces of the shell, the output ends of the first motors are fixedly connected with the lead screw, the lead screw is in threaded connection with adjusting plates, and rotating discs are rotationally arranged on the adjusting plates; and therefore, a user can control the first motor to enable the lead screw to rotate, at the moment, the lead screw can drive the adjusting plates to move so as to adjust the distance between the two adjusting plates, and metal bars with different lengths can be conveniently clamped and fixed.

Description

Technical Field

[0001] This utility model relates to the field of piston rod straightening technology, and more specifically, to a piston rod straightening device. Background Technology

[0002] The piston rod is the connecting component that supports the piston in performing work. It is mostly used in hydraulic cylinders and pneumatic cylinders. It is a moving component with frequent movement and high technical requirements. Straightness is an important indicator for measuring whether the piston rod is qualified. Metal bars may bend during the manufacturing process of piston rods, so they usually need to be straightened. Straightening devices are required during the straightening process.

[0003] However, in the process of using existing straightening devices, the clamping mechanism is mostly in a fixed position, which makes it unsuitable for fixing metal bars of different lengths, resulting in poor practical effect of the device.

[0004] Furthermore, most existing straightening devices only apply pressure to the upper end of the metal bar to achieve the straightening effect. However, this structure can cause the metal bar to bend again due to excessive pressure, affecting the straightening effect. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a piston rod straightening device to solve the technical problem mentioned in the background art that most of the clamping mechanisms of existing straightening devices are in a fixed position during use, which makes them unsuitable for fixing metal bars of different lengths.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a piston rod straightening device, comprising a housing, with slide rails on both sides of the inner wall of the housing, each slide rail having two sets of slide rails, each slide rail having a slider slidably mounted inside, each slider having an adjusting plate fixedly mounted at its upper end, a bearing seat being provided at the middle position of the two slide rails, a lead screw being rotatably mounted inside the bearing seat, the other end of the lead screw being rotatably mounted to the housing, a first motor being provided on both sides of the housing, the output end of the first motor being fixedly connected to the lead screw, the lead screw being threadedly connected to the adjusting plate, a rotating disk being rotatably mounted on each adjusting plate, an electric push rod being provided on both sides of the outer wall of the rotating disk, each electric push rod having a clamping block at its output end, a cylinder being provided on the upper end face of the housing, and a lifting plate being provided at the output end of the cylinder.

[0009] The present invention is further configured such that a sliding groove is provided on the lower end face of the lifting plate, a sliding block is slidably provided inside the sliding groove, a threaded rod is rotatably provided inside the sliding groove, the threaded rod is threadedly connected to the sliding block, a second motor is provided at one end of the threaded rod and on the outer wall of the lifting plate, and mounting brackets are provided on the lower end face of the sliding block and on both the front and rear sides, a hydraulic cylinder is provided on the outer wall of each mounting bracket, and a straightening plate is provided at the output end of each hydraulic cylinder to facilitate the movement of the straightening plate.

[0010] The present invention is further configured such that the inner walls of the straightening plates are all arc-shaped and arranged symmetrically front and back.

[0011] The present invention is further configured such that each output end of the hydraulic cylinder is fixedly provided with an installation sleeve, and each outer wall of the straightening plate is fixedly provided with an installation rod. The installation rods are all located inside the installation sleeves, and each installation rod and the outer wall of the installation sleeve are provided with corresponding through holes. Each through hole is provided with a sliding pin, which facilitates the disassembly and replacement of the straightening plate.

[0012] The present invention is further configured such that an external thread is provided on the outer wall of the mounting sleeve, and a limiting nut is provided on the outer side of the external thread. The limiting nut contacts both ends of the pin, so as to limit the pin and prevent it from coming out.

[0013] The present invention is further configured such that a third motor is provided on the outer wall of one of the adjustment plates, and the output end of the third motor is fixedly connected to the rotating disk, so as to facilitate the rotation of the metal rod for processing the piston rod, so as to straighten it at different positions.

[0014] The present invention is further provided with anti-slip pads fixed on the inner wall of each clamping block, which facilitates increasing the friction between the clamping block and the metal rod.

[0015] The present invention is further configured such that guide rods are provided on the upper end face and both sides of the lifting plate, and guide cylinders are provided on the upper end face of the housing, and the guide rods and guide cylinders are slidably installed to facilitate guiding the lifting plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a piston rod straightening device, which has the following beneficial effects:

[0018] 1. By setting up a slide rail, slider, lead screw, and first motor, the user can control the first motor to rotate the lead screw. At this time, the lead screw will drive the adjustment plate to move, so as to adjust the distance between the two adjustment plates, so that the two ends of the metal rod contact the outer wall of the rotating disk. Then, control the electric push rod to make the clamp block abut against the outer wall of the metal rod, so as to achieve the effect of clamping and fixing it, which facilitates the subsequent straightening operation.

[0019] 2. By setting up a lifting plate, cylinder, sliding block, and straightening plate, the user can control the cylinder to move the lifting plate downward so that the straightening plate is located on both sides of the metal bar. Then, the hydraulic cylinder is controlled to make the inner wall of the straightening plate contact the outer wall of the metal bar. Finally, the second motor is controlled to make the threaded rod drive the sliding block and the straightening plate to move, so as to straighten metal bars of different lengths, which facilitates the subsequent processing of the piston rod.

[0020] 3. By setting up an installation sleeve, installation rod, and pin, the user can disengage the pin by rotating the limit nut. At this time, the pin can be removed from the inside of the through hole to disassemble the installation rod and installation sleeve, which facilitates the replacement of the straightening plate. This design makes it convenient to straighten metal bars of different diameters, increasing the flexibility of the device during use. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of a piston rod straightening device in its unused state.

[0022] Figure 2 This is a schematic diagram showing the installation of the rotating disc, electric push rod, and clamping block on the adjustment plate;

[0023] Figure 3 This is a schematic diagram showing the installation positions of the lifting plate, cylinder, and second motor inside the housing;

[0024] Figure 4 A schematic diagram showing the installation of the hydraulic cylinder, straightening plate, and limit nut on the mounting frame;

[0025] Figure 5 Exploded view of the installation of the straightening plate, mounting sleeve, mounting rod, pin, and limit nut on the hydraulic cylinder;

[0026] Figure 6 An exploded view showing the installation of the threaded rod, sliding block, and second motor on the lifting plate.

[0027] In the diagram: 1. Housing; 2. Slide rail; 3. Slider; 4. Adjusting plate; 5. Lead screw; 6. First motor; 7. Rotary disk; 8. Electric push rod; 9. Clamping block; 10. Cylinder; 11. Lifting plate; 12. Sliding groove; 13. Sliding block; 14. Threaded rod; 15. Second motor; 16. Mounting bracket; 17. Hydraulic cylinder; 18. Straightening plate; 19. Mounting sleeve; 20. Mounting rod; 21. Through hole; 22. Pin; 23. Limit nut; 24. Third motor; 25. Anti-slip pad; 26. Guide rod; 27. Guide cylinder. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-6 A piston rod straightening device includes a housing 1. Slide rails 2 are provided on the inner wall of the housing 1 on both sides. Each slide rail 2 has two sets of slides, and sliders 3 are slidably mounted inside each slide rail. Adjusting plates 4 are fixedly mounted on the upper ends of the sliders 3. A bearing seat is provided in the middle of the two slide rails 2. A lead screw 5 is rotatably mounted inside the bearing seat. The other end of the lead screw 5 is rotatably mounted to the housing 1. First motors 6 are provided on both sides of the housing 1. The output end of the first motor 6 is fixedly connected to the lead screw 5. The lead screw 5 is threadedly connected to the adjusting plate 4. A rotating disk 7 is rotatably mounted on each adjusting plate 4. Electric push rods 8 are provided on the outer wall of the rotating disk 7 on both sides. Clamping blocks 9 are provided at the output ends of the electric push rods 8. A cylinder 10 is provided on the upper surface of the housing 1. A lifting plate 11 is provided at the output end of the cylinder 10. A third motor 24 is provided on the outer wall of one of the adjusting plates 4. The output end of the third motor 24 is fixedly connected to the rotating disk 7. Anti-slip pads 25 are fixedly mounted on the inner wall of each clamping block 9.

[0032] In this embodiment, a sliding groove 12 is provided on the lower end face of the lifting plate 11, and a sliding block 13 is slidably provided inside the sliding groove 12. A threaded rod 14 is rotatably provided inside the sliding groove 12, and the threaded rod 14 is threadedly connected to the sliding block 13. A second motor 15 is provided at one end of the threaded rod 14 and on the outer wall of the lifting plate 11. Mounting brackets 16 are provided on the lower end face of the sliding block 13 and on both the front and rear sides. Hydraulic cylinders 17 are provided on the outer wall of each mounting bracket 16. A straightening plate 18 is provided at the output end of each hydraulic cylinder 17. The inner wall of each straightening plate 18 is arc-shaped and symmetrically arranged front and rear.

[0033] More specifically, the user can control the first motor 6 to rotate the lead screw 5, which in turn drives the adjusting plate 4 to move, thereby adjusting the distance between the two adjusting plates 4 so that both ends of the metal rod contact the outer wall of the rotating disk 7. Then, the electric push rod 8 is controlled to make the clamping block 9 abut against the outer wall of the metal rod to achieve the effect of clamping and fixing it. When straightening is required, the lifting plate 11 can be moved downward by controlling the cylinder 10 so that the straightening plate 18 is located on both sides of the metal rod. Then, the hydraulic cylinder 17 is controlled to make the inner wall of the straightening plate 18 contact the outer wall of the metal rod. Finally, the second motor 15 is controlled to make the threaded rod 14 drive the sliding block 13 and the straightening plate 18 to move, so as to straighten metal rods of different lengths, which facilitates the subsequent processing of the piston rod.

[0034] Please see Figure 1 , Figure 4 and Figure 5 As an implementation method for replacing the straightening plate 18: the output end of the hydraulic cylinder 17 is fixedly provided with a mounting sleeve 19, the outer wall of the straightening plate 18 is fixedly provided with a mounting rod 20, the mounting rod 20 is located inside the mounting sleeve 19, the mounting rod 20 and the outer wall of the mounting sleeve 19 are respectively provided with through holes 21, the inside of the through holes 21 is provided with a pin 22, the outer wall of the mounting sleeve 19 is provided with an external thread, the outer side of the external thread is provided with a limit nut 23, and the limit nut 23 is in contact with both ends of the pin 22.

[0035] Specifically, the user can rotate the limiting nut 23 to disengage it from the pin 22, at which point the pin 22 can be removed from the inside of the through hole 21 to separate the mounting rod 20 and the mounting sleeve 19, thereby facilitating the replacement of the straightening plate 18.

[0036] Please refer to Figure 1 As a further embodiment for guiding the lifting plate 11: the upper end face of the lifting plate 11 and both sides are provided with guide rods 26, and the upper end face of the housing 1 is provided with guide cylinders 27, and the guide rods 26 and guide cylinders 27 are slidably installed.

[0037] Specifically, the lifting plate 11 can be guided to make its up-and-down movement more stable.

[0038] In summary, when using the entire equipment: the user can first place the metal rod to be processed into the piston rod in the middle position of the two adjusting plates 4, and then control the first motor 6 to rotate the lead screw 5. At this time, the lead screw 5 will drive the adjusting plates 4 to move, thereby adjusting the distance between the two adjusting plates 4 so that the two ends of the metal rod contact the outer wall of the rotating disk 7. Then, control the electric push rod 8 to make the clamping block 9 abut against the outer wall of the metal rod to achieve the effect of clamping and fixing it. When straightening is required, the lifting plate 11 can be moved downward by controlling the cylinder 10 so that the straightening plate 18 is positioned on the metal rod. The straightening plate 18 is then positioned on both sides of the metal bar. The hydraulic cylinder 17 is then controlled to make the inner wall of the straightening plate 18 contact the outer wall of the metal bar. Finally, the second motor 15 is controlled to move the threaded rod 14, which in turn moves the sliding block 13 and the straightening plate 18 to straighten metal bars of different lengths. This facilitates subsequent processing of the piston rod. The user can also rotate the limit nut 23 to disengage it from the pin 22. At this point, the pin 22 can be removed from the inside of the through hole 21 to separate the mounting rod 20 and the mounting sleeve 19, thereby facilitating the replacement of the straightening plate 18 and helping to straighten metal bars of different diameters.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A piston rod straightening device, comprising a housing (1), characterized in that: The inner wall of the housing (1) is provided with slide rails (2) on both sides. Each slide rail (2) is provided with two sets of sliders (3) and sliders (3) are slidably provided inside each slider (3). An adjustment plate (4) is fixedly provided at the upper end of each slider (3). A bearing seat is provided in the middle of the two slide rails (2). A lead screw (5) is rotatably provided inside the bearing seat. The other end of the lead screw (5) is rotatably installed with the housing (1). A first motor (6) is provided on both sides of the housing (1). The output end of the first motor (6) is fixedly connected to the lead screw (5). The lead screw (5) is threadedly connected to the adjustment plate (4). A rotating disk (7) is rotatably provided on each adjustment plate (4). An electric push rod (8) is provided on both sides of the outer wall of the rotating disk (7). A clamp (9) is provided at the output end of each electric push rod (8). A cylinder (10) is provided on the upper surface of the housing (1). A lifting plate (11) is provided at the output end of the cylinder (10).

2. The piston rod straightening device according to claim 1, characterized in that: The lower end face of the lifting plate (11) is provided with a sliding groove (12), and a sliding block (13) is slidably provided inside the sliding groove (12). A threaded rod (14) is rotatably provided inside the sliding groove (12). The threaded rod (14) is threadedly connected to the sliding block (13). A second motor (15) is provided at one end of the threaded rod (14) and on the outer wall of the lifting plate (11). Mounting brackets (16) are provided on the lower end face of the sliding block (13) and on both the front and rear sides. A hydraulic cylinder (17) is provided on the outer wall of each mounting bracket (16). A straightening plate (18) is provided at the output end of each hydraulic cylinder (17).

3. A piston rod straightening device according to claim 2, characterized in that: The inner walls of the straightening plates (18) are all arc-shaped and arranged symmetrically front and back.

4. A piston rod straightening device according to claim 2, characterized in that: The output end of each hydraulic cylinder (17) is fixedly provided with a mounting sleeve (19), and the outer wall of each straightening plate (18) is fixedly provided with a mounting rod (20). The mounting rod (20) is located inside the mounting sleeve (19). The mounting rod (20) and the outer wall of the mounting sleeve (19) are respectively provided with through holes (21), and the through holes (21) are slidably provided with pins (22).

5. A piston rod straightening device according to claim 4, characterized in that: The outer wall of the mounting sleeve (19) is provided with an external thread, and a limiting nut (23) is provided on the outer side of the external thread. The limiting nut (23) is in contact with both ends of the pin (22).

6. A piston rod straightening device according to claim 1, characterized in that: one of them The outer wall of the adjustment plate (4) is provided with a third motor (24), and the output end of the third motor (24) is fixedly connected to the rotating disk (7).

7. A piston rod straightening device according to claim 2, characterized in that: Anti-slip pads (25) are fixedly provided on the inner wall of each clamp (9).

8. A piston rod straightening device according to claim 2, characterized in that: The upper end face of the lifting plate (11) and both sides are provided with guide rods (26), and the upper end face of the housing (1) is provided with a guide cylinder (27). The guide rods (26) and the guide cylinder (27) are slidably installed.

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