A cold straightening device for special alloy bar

Abstract

The utility model discloses a kind of special alloy bar cold straightening device, more specifically related to bar processing technical field, including base, wherein, two straightening plates are symmetrically distributed on base, the outer surface of two straightening plates is all provided with several embedding grooves, the inside of several embedding grooves is all rotatably installed with straightening roll by shaft pin, adjusting assembly is provided at the connecting portion of two straightening plates and base, the surface of base and located at the both sides of two straightening plates are all provided with support guiding structure, support guiding structure includes two support rods, two support rods are all fixed on base, and lower support bracket is fixedly installed between them, the top of lower support bracket is provided with upper support bracket. The utility model can position and center bar during cold straightening of bar, and conveniently support and guide straightening of bar, avoid deviation of bar during straightening, improve straightening effect.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, and more specifically, to a cold straightening device for special alloy bars. Background Technology

[0002] Special alloy bars are widely used in key fields such as aerospace, high-end equipment manufacturing, and precision machinery due to their excellent properties such as high strength, corrosion resistance, and high temperature resistance. However, after processing such as rolling and forging, these bars are prone to bending deformation due to uneven internal stress distribution and external forces. Straightening treatment is required to ensure straightness and meet the accuracy requirements of subsequent processing and assembly.

[0003] A search revealed that Chinese patent CN221473073U discloses a nickel alloy bar straightening device. This structure, through the setting of an adjustment mechanism, starts a first motor to drive a bidirectional lead screw to rotate. Through the cooperation of the sliding groove, the two sliders drive the adjustment frame to move in opposite directions until the gap between the two rows of straightening rollers matches the size of the bar, thereby avoiding the problem of fixed bar size that can be straightened.

[0004] However, in actual use, this structure lacks a support and guide structure for straightening the bar, which makes the bar prone to axial displacement or radial sway during the straightening process, resulting in low straightening accuracy and even secondary deformation. In view of this, this utility model proposes a cold straightening device for special alloy bars. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cold straightening device for special alloy bars to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold straightening device for special alloy bars, comprising a base, on which two straightening plates are symmetrically distributed, and the outer surfaces of the two straightening plates are provided with a plurality of embedded grooves, and straightening rollers are rotatably installed inside the plurality of embedded grooves via shaft pins. An adjustment component is provided at the connection between the two straightening plates and the base, and a support and guide structure is provided on the surface of the base and on both sides of the two straightening plates.

[0007] Preferably, the support and guide structure includes two support rods, both fixed to the base, with a lower support bracket fixedly installed between them. An upper support bracket is positioned on top of the lower support bracket, and the upper support bracket can slide up and down between the two support rods via an adjusting assembly. Both the upper and lower support brackets have arc-shaped grooves at their center that fit the outer wall of the bar. Ball bearings are rolled along the inner wall of the arc-shaped grooves. When the arc-shaped grooves of the upper and lower support brackets are closed, they form a circular cavity that fits the outer wall of the bar. The adjusting assembly includes a feed screw. Both support rods have rectangular grooves. The feed screw rotates within the corresponding rectangular groove, and an adjusting block is threaded onto the external thread of the feed screw. A guide rod is fixedly installed inside the rectangular groove of the other support rod, and a guide block is slidably installed on the outside of the guide rod. The adjusting block and the guide block are respectively fixed to both ends of the upper support bracket.

[0008] Preferably, a support frame is fixedly installed on one of the straightening plates, and a drive motor is fixedly installed on the support frame. A rotating rod is fixedly installed at the top of each of the several straightening rollers belonging to the straightening plate to which the drive motor is installed. The output end of the drive motor is fixedly connected to the corresponding rotating rod. A transmission wheel is fixedly installed on the outer surface of the rotating rod, and a transmission belt is installed between each pair of adjacent transmission wheels.

[0009] Preferably, the adjustment assembly includes a bidirectional threaded screw, and the surface of the base has two mounting slots. The bidirectional threaded screw is rotatably installed inside the corresponding mounting slots, and a servo motor is provided at one end of the bidirectional threaded screw. A slide rod is fixedly installed inside the other mounting slot. Two threaded blocks and a slider are respectively provided on the outside of the bidirectional threaded screw and the outside of the slide rod. The servo motor is fixed to the outer wall of the base, and the output end of the servo motor is fixedly connected to the bidirectional threaded screw. Both threaded blocks are threadedly connected to the bidirectional threaded screw, and both sliders slide in cooperation with the slide rod. The threaded blocks and sliders are respectively fixed to the bottom of the corresponding straightening plate.

[0010] The technical effects and advantages of this utility model are as follows: 1. By setting up a support and guide structure, the lower support bracket's arc groove is used to achieve centering and positioning, so that the bar can be in the middle position of the two straightening plates. The upper support bracket, together with the adjustable spacing component, forms a closed cavity to achieve precise clamping. At the same time, the ball bearings in the arc groove convert sliding friction into rolling friction, which effectively limits the deviation of the bar during straightening and ensures smooth movement of the bar, thereby improving straightening accuracy and stability. 2. By setting up an adjustment component, a servo motor drives a bidirectional threaded screw to rotate, causing the two threaded blocks and straightening plates to move synchronously closer or further away along the guide rail. The symmetrical transmission characteristics of the bidirectional thread enable precise adjustment of the distance between the two straightening plates, thereby facilitating the straightening operation of the bar stock.

[0011] 3. The servo motor on the support frame drives the corresponding rotating rod to rotate, and through the transmission wheel and transmission belt, it drives all the straightening rollers on the same side to rotate synchronously, providing stable power for the straightening of the bar. Combined with manual traction, the bar is subjected to uniform force, improving the straightening effect and continuity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the bottom structure of the two straightening plates of this utility model.

[0014] Figure 3 This is a schematic diagram of the connection structure between the transmission wheel and the transmission belt of this utility model.

[0015] Figure 4 This is a three-dimensional schematic diagram of the support and guidance structure of this utility model.

[0016] Figure 5 This is a schematic diagram of the connection structure between the adjusting block and the guide block and the upper support bracket of this utility model.

[0017] The attached diagram is labeled as follows: 1. Base; 2. Straightening plate; 3. Embedded groove; 4. Straightening roller; 5. Support rod; 6. Lower support bracket; 7. Upper support bracket; 8. Arc groove; 9. Ball bearing; 10. Support frame; 11. Drive motor; 12. Rotating rod; 13. Transmission wheel; 14. Transmission belt; 15. Bidirectional threaded screw; 16. Servo motor; 17. Slide rod; 18. Threaded block; 19. Slider; 20. Feed screw; 21. Adjusting block; 22. Guide rod; 23. Guide block. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-5 The cold straightening device for special alloy bars shown includes a base 1, on which two straightening plates 2 are symmetrically distributed. Each of the two straightening plates 2 has several embedded grooves 3 on its outer surface. Straightening rollers 4 are rotatably installed inside each of the several embedded grooves 3 via shaft pins. An adjustment component is provided at the connection between the two straightening plates 2 and the base 1. Support and guide structures are provided on the surface of the base 1 and on both sides of the two straightening plates 2.

[0020] Specifically, in this structure, when the special alloy bar is straightened, it is supported and guided by a support and guide structure to prevent it from shifting during the straightening process. The adjustment component can adjust the distance between the two straightening plates 2 so that the bar is positioned between the two straightening plates 2 and straightened by two rows of straightening rollers 4.

[0021] In this embodiment, as shown in the appendix Figure 1 , 4 As shown in Figure 5, the support and guide structure includes two support rods 5, both of which are fixed on the base 1, and a lower support bracket 6 is fixedly installed between them. An upper support bracket 7 is provided on the top of the lower support bracket 6. The upper support bracket 7 can slide up and down between the two support rods 5 through an adjustment assembly. The center of both the upper support bracket 7 and the lower support bracket 6 is provided with an arc-shaped groove 8 that matches the outer wall of the bar. A ball bearing 9 is rolled on the inner wall of the arc-shaped groove 8. When the arc-shaped grooves 8 of the upper support bracket 7 and the lower support bracket 6 are closed, a circular cavity that matches the outer wall of the bar is formed. The adjustment assembly includes a feed screw 20. Both support rods 5 are provided with rectangular grooves. The feed screw 20 rotates inside the corresponding rectangular groove, and an adjustment block 21 is installed on the external thread of the feed screw 20. A guide rod 22 is fixedly installed inside the rectangular groove of the other support rod 5. A guide block 23 is slidably installed on the outside of the guide rod 22. The adjustment block 21 and the guide block 23 are respectively fixed at both ends of the upper support bracket 7.

[0022] Specifically, in this structure, when the bar is being straightened and supported, the bar is placed in the arc-shaped groove 8 of the lower support bracket 6. At this time, the bar is in a centered state, so that the bar is in the middle position of the two straightening plates 2. The operator rotates the feed screw 20, so that the adjusting block 21 drives the upper support bracket 7 to extend downward under the guidance of the guide block 23 and the guide rod 22. The bar is clamped in the arc-shaped groove 8 belonging to the upper support 7 and the lower support 6. This clamping action restricts and guides the bar during the straightening and extension process, effectively limiting the bar from deviating. At the same time, it causes several balls 9 inside the arc-shaped groove 8 to roll and guide the bar, improving the smoothness of the bar's movement and not affecting the straightening and extension operation to one side.

[0023] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figure 3, a support frame 10 is fixedly installed on one of the straightening plates 2, and a drive motor 11 is fixedly installed on the support frame 10. A rotating rod 12 is fixedly installed at the top of several straightening rollers 4 belonging to the straightening plate 2 to which the drive motor 11 is installed. The output end of the drive motor 11 is fixedly connected to the corresponding rotating rod 12. A transmission wheel 13 is fixedly installed on the outer surface of the rotating rod 12, and a transmission belt 14 is installed between each two adjacent transmission wheels 13.

[0024] Specifically, in this structure, when the bar is straightened by two rows of straightening rollers 4, the drive motor 11 supported on the support frame 10 first drives one of the rotating rods 12 to rotate, which in turn causes the corresponding straightening roller 4 to rotate. Under the close transmission cooperation of the transmission belt 14 and the transmission wheel 13, several straightening rollers 4 rotate. During the process of straightening the bar, one end of the bar is pulled manually to provide power for the bar to move to one side.

[0025] In this embodiment, as shown in the appendix Figure 1 , 2 As shown, the adjustment assembly includes a bidirectional threaded screw 15. Two mounting slots are formed on the surface of the base 1. The bidirectional threaded screw 15 is rotatably installed inside the corresponding mounting slot. A servo motor 16 is provided at one end of the bidirectional threaded screw 15. A slide rod 17 is fixedly installed inside the other mounting slot. Two threaded blocks 18 and sliders 19 are respectively provided on the outside of the bidirectional threaded screw 15 and the outside of the slide rod 17. The servo motor 16 is fixed to the outer wall of the base 1, and the output end of the servo motor 16 is fixedly connected to the bidirectional threaded screw 15. Both threaded blocks 18 are threadedly connected to the bidirectional threaded screw 15. Both sliders 19 are slidably engaged with the slide rod 17. The threaded blocks 18 and sliders 19 are respectively fixed to the bottom of the corresponding straightening plate 2.

[0026] Specifically, in this structure, the servo motor 16 drives the bidirectional threaded screw 15 to rotate, so that the two threaded blocks 18 drive the two straightening plates 2 to move closer or further apart, and drive the slider 19 to slide and guide outside the slide rod 17, thereby clamping the bar between the two rows of straightening rollers 4, which facilitates the straightening operation of the bar.

[0027] Working principle of this utility model: This application provides a cold straightening device for special alloy bars. In specific use, the servo motor 16 first drives the bidirectional threaded screw 15 to rotate, causing the two threaded blocks 18 to move closer or further away from each other, thereby pulling the two straightening plates 2 to move synchronously. At the same time, the slider 19 at the bottom of the straightening plate 2 slides along the slide rod 17 to guide it, and finally adjusts the distance between the two straightening plates 2 to match the outer diameter of the bar. The bar is placed in the arc-shaped groove 8 of the lower support 6, so that the bar is automatically centered and in the middle position of the two straightening plates 2. The feed screw 20 of the adjustment component is rotated, which drives the adjustment block 21 to move down, thereby pulling the upper support 7 to slide down along the guide direction of the guide rod 22 and the guide block 23 until the upper support 7 and the arc-shaped groove 8 of the lower support 6 are closed, forming a circular cavity that fits against the outer wall of the bar, thus stably clamping the bar. The ball bearings 9 in the arc-shaped groove 8 can reduce the friction when the bar moves. Start the drive motor 11 on the support frame 10. The output end of the drive motor 11 drives the corresponding rotating rod 12 to rotate. Through the cooperation of the transmission wheel 13 on the rotating rod 12 and the transmission belt 14, all the straightening rollers 4 on the straightening plate 2 on this side rotate synchronously, providing power support for the straightening of the bar. Manually pull one end of the bar. Under the restriction and guidance of the support and guide structure, the bar moves smoothly along the cavity and enters between the two rows of rotating straightening rollers 4. Through the squeezing and rotation of the straightening rollers 4, the bar achieves straightness correction in a cold state. At the same time, the rolling action of the ball bearings 9 ensures that the bar continues to extend to one side, completing the entire straightening process.

[0028] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold straightening device for special alloy bar, comprising a base (1), characterized in that: Two straightening plates (2) are symmetrically distributed on the base (1). Several embedding grooves (3) are opened on the outer surface of the two straightening plates (2). Straightening rollers (4) are rotatably installed in the several embedding grooves (3) through shaft pins. An adjustment component is provided at the connection between the two straightening plates (2) and the base (1). A support guide structure is provided on the surface of the base (1) and on both sides of the two straightening plates (2). The support and guide structure includes two support rods (5), both of which are fixed on the base (1), and a lower support bracket (6) is fixedly installed between them. An upper support bracket (7) is provided on the top of the lower support bracket (6). The upper support bracket (7) can slide up and down between the two support rods (5) through the adjustment component. The center of the upper support bracket (7) and the lower support bracket (6) are provided with an arc-shaped groove (8) that matches the outer wall of the rod. A ball bearing (9) is rolled on the inner wall of the arc-shaped groove (8).

2. The apparatus for cold straightening of special alloy bar as claimed in claim 1 wherein: A support frame (10) is fixedly installed on one of the straightening plates (2), and a drive motor (11) is fixedly installed on the support frame (10). A rotating rod (12) is fixedly installed on the top of several straightening rollers (4) belonging to the straightening plate (2) on which the drive motor (11) is installed. The output end of the drive motor (11) is fixedly connected to the corresponding rotating rod (12).

3. The apparatus of claim 2 wherein: A transmission wheel (13) is fixedly installed on the outer surface of the rotating rod (12), and a transmission belt (14) is installed between each two adjacent transmission wheels (13).

4. The apparatus of claim 1 wherein: The adjustment assembly includes a bidirectional threaded screw (15), and the base (1) has two mounting slots on its surface. The bidirectional threaded screw (15) is rotatably installed in the corresponding mounting slots, and a servo motor (16) is provided at one end of the bidirectional threaded screw (15). A slide bar (17) is fixedly installed inside another mounting slot. Two threaded blocks (18) and a slider (19) are respectively provided on the outside of the bidirectional threaded screw (15) and the outside of the slide bar (17).

5. The cold straightening device for special alloy bars according to claim 4, characterized in that: The servo motor (16) is fixed on the outer wall of the base (1), and the output end of the servo motor (16) is fixedly connected to the bidirectional threaded screw (15). The two threaded blocks (18) are threadedly connected to the bidirectional threaded screw (15), and the two sliders (19) are slidably engaged with the slide rod (17). The threaded blocks (18) and sliders (19) are respectively fixed at the bottom of the corresponding straightening plate (2).

6. The cold straightening device for special alloy bars according to claim 1, characterized in that: The adjustable distance assembly includes a feed screw (20), and two support rods (5) are provided with rectangular slots. The feed screw (20) rotates inside the corresponding rectangular slot, and an adjusting block (21) is installed on the external thread of the feed screw (20). A guide rod (22) is fixedly installed inside the rectangular slot of the other support rod (5), and a guide block (23) is slidably installed on the outside of the guide rod (22). The adjusting block (21) and the guide block (23) are respectively fixed at both ends of the upper support bracket (7).

7. The cold straightening device for special alloy bars according to claim 1, characterized in that: When the arc-shaped grooves (8) to which the upper support bracket (7) and lower support bracket (6) belong are closed, they form a circular cavity that is compatible with the outer wall of the rod.

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