Straightening and quenching device

Abstract

The embodiment of the utility model provides a straightening and quenching device, and relates to the technical field of asymmetric extrusion production, the straightening and quenching device comprises a first straightening part, a second straightening part and a quenching part, the first straightening part is located below an extrusion outlet of an extrusion device of an asymmetric extrusion mechanism and located above the quenching part, and the second straightening part is located above the quenching part; the first straightening part is located below the first straightening part and used for straightening the extruded and quenched plate-shaped workpieces, and the second straightening part is located below the quenching part and used for straightening the quenched plate-shaped workpieces. The straightening and quenching device not only can correct slight deformation, caused in the extrusion process, of the plate-shaped workpiece, but also can correct slight deformation, caused by residual stress in the quenching process, of the plate-shaped workpiece, and therefore it can be guaranteed that the finally produced plate-shaped workpiece has good planeness and straightness.

Description

Technical Field

[0001] This application relates to the technical field of asymmetric extrusion production, and particularly relates to a straightening and quenching device. Background Art

[0002] Some lightweight metal materials (such as magnesium) are extruded into plate-shaped workpieces by an asymmetric extrusion device, and then the extruded plate-shaped workpieces are quenched to maintain the uniformity of their microstructure. The flatness and straightness of the plate-shaped workpieces formed by this process still need to be improved. How to improve it is a technical problem that needs to be solved by those skilled in the art. Summary of the Utility Model

[0003] To solve the above technical problems, this application provides a straightening and quenching device, including a first straightening part, a second straightening part, and a quenching part. The first straightening part is located below the extrusion outlet of the extrusion device of the asymmetric extrusion mechanism and above the quenching part, and is used to straighten the plate-shaped workpiece after extrusion and before quenching. The second straightening part is located below the quenching part and is used to straighten the plate-shaped workpiece after quenching.

[0004] An implementation manner of the straightening and quenching device, both the first straightening part and the second straightening part include: a plurality of widthwise straightening roller groups arranged at intervals from top to bottom, and a plurality of thicknesswise straightening roller groups arranged at intervals from top to bottom; each widthwise straightening roller group includes two widthwise straightening rollers arranged at intervals along the width direction of the plate-shaped workpiece, and the axial direction of the widthwise straightening roller is along the thickness direction of the plate-shaped workpiece; each thicknesswise straightening roller group includes two thicknesswise straightening rollers arranged at intervals along the thickness direction of the plate-shaped workpiece, and the axial direction of the thicknesswise straightening roller is along the width direction of the plate-shaped workpiece.

[0005] An implementation manner of the straightening and quenching device, the widthwise straightening rollers and the thicknesswise straightening rollers are arranged staggeredly up and down.

[0006] An implementation manner of the straightening and quenching device, an annular groove is provided in the middle of the outer peripheral surface of the widthwise straightening roller, and during the straightening process, a part of the plate-shaped workpiece passes through the annular groove.

[0007] An implementation manner of the straightening and quenching device, the straightening and quenching device includes a bracket, the bracket includes a supporting part, and the quenching part, the first straightening part, and the second straightening part are all connected to the supporting part.

[0008] An embodiment of the straightening and quenching device, wherein the supporting part includes multiple long connecting rods, multiple short connecting rods and four vertical rods distributed in a rectangle. Each of the four vertical rods is provided with a roller shaft connection hole. Among them, the first vertical rod and the second vertical rod are connected by a long connecting rod, the second vertical rod and the third vertical rod are connected by a short connecting rod, the third vertical rod and the fourth vertical rod are connected by a long connecting rod, and the fourth vertical rod and the first vertical rod are connected by a short connecting rod.

[0009] An embodiment of the straightening and quenching device, wherein the roller shafts at both ends of one thickness straightening roller of each thickness straightening roller group are respectively inserted into the roller shaft connection holes of the first vertical rod and the second vertical rod, and the roller shafts at both ends of the other thickness straightening roller are respectively inserted into the roller shaft connection holes of the third vertical rod and the fourth vertical rod; the roller shafts at both ends of one width straightening roller of each width straightening roller group are respectively inserted into the roller shaft connection holes of the second vertical rod and the third vertical rod, and the roller shafts at both ends of the other width straightening roller are respectively inserted into the roller shaft connection holes of the fourth vertical rod and the first vertical rod.

[0010] An embodiment of the straightening and quenching device, wherein the quenching part includes two quenching heads arranged at intervals in sequence along the thickness direction of the plate-shaped workpiece. One quenching head is connected between the first vertical rod and the second vertical rod, and the other quenching head is connected between the third vertical rod and the fourth vertical rod. Both of the two quenching heads are provided with pipe joints for accessing the cooling medium.

[0011] An embodiment of the straightening and quenching device, wherein the bracket further includes a connecting part, and the connecting part is connected to the supporting part and is used for fixedly connecting with the die bottom plate of the asymmetric extrusion device.

[0012] An embodiment of the straightening and quenching device, wherein the connecting part includes multiple support rods. The lower ends of the support rods are connected to the supporting part, the upper ends of the support rods are inclined outward relative to the lower ends, and each upper end of each support rod is connected with a horizontal connecting block, and is fixedly connected with the die bottom plate of the asymmetric extrusion device through the horizontal connecting block.

[0013] The straightening and quenching device provided by the present application can straighten and quench the plate-shaped workpiece extruded by the asymmetric extrusion device and straighten the plate-shaped workpiece after quenching. It can not only correct the slight deformation of the plate-shaped workpiece caused during the extrusion process, but also correct the slight deformation of the plate-shaped workpiece caused by the residual stress during the quenching process, so as to ensure that the finally produced plate-shaped workpiece has good flatness and straightness. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of an embodiment of the straightening and quenching device provided by the present application;

[0015] Figure 2 is Figure 1The plan view of the straightening and quenching device shown is fixed at the extrusion outlet of the extrusion device;

[0016] Figure 3 For Figure 1 The three-dimensional view of a single quenching head in;

[0017] Figure 4 For Figure 3 The side view of.

[0018] The description of the reference numerals in the drawings is as follows:

[0019] 1 Straightening and quenching device, 11a First straightening part, 11b Second straightening part, 111 Thickness-direction straightening roll group, 111a Thickness-direction straightening roll, 112 Width-direction straightening roll group, 112a Width-direction straightening roll, A Annular groove, 12 Quenching part, 121 Quenching head, 121a Pipe joint, 121b Groove, 121c Projection, 13 Connecting part, 131 Support rod, 132 Horizontal connecting block, 14 Support part, 141 First vertical rod, 142 Second vertical rod, 143 Third vertical rod, 144 Fourth vertical rod, 145 Long connecting rod, 146 Short connecting rod;

[0020] 2 Asymmetric extrusion device, 21 Extrusion outlet, 22 Die bottom plate. Detailed implementation manners

[0021] In order to enable those skilled in the art of the present technology to better understand the technical solution of the present application, the present application will be further described in detail below with reference to the drawings and specific implementation manners.

[0022] The present application provides a straightening and quenching device 1, which can be applied in asymmetric extrusion production, and can straighten and quench the plate-shaped workpiece extruded by the asymmetric extrusion device 2 and straighten the plate-shaped workpiece after quenching.

[0023] As Figure 1 shown, the straightening and quenching device 1 includes a first straightening part 11a, a second straightening part 11b, and a quenching part 12. The first straightening part 11a is located above the quenching part 12. The second straightening part 11b is located below the quenching part 12.

[0024] During application, as Figure 2 shown, the straightening and quenching device 1 is fixed below the extrusion outlet 21 of the asymmetric extrusion device 2. The plate-shaped workpiece extruded is straightened by the first straightening part 11a, quenched by the quenching part 12 after straightening, and then the plate-shaped workpiece after quenching is straightened again by the second straightening part 11b.

[0025] The first straightening part 11a can straighten the slight deformation of the plate-shaped workpiece caused during the extrusion process, and the second straightening part 11b can straighten the slight deformation of the plate-shaped workpiece caused by the residual stress during the quenching process, so as to ensure that the finally produced plate-shaped workpiece has better flatness and straightness.

[0026] In some embodiments, both the first straightening part 11a and the second straightening part 11b include: a plurality of widthwise straightening roller groups 112 arranged at intervals from top to bottom, and a plurality of thicknesswise straightening roller groups 111 arranged at intervals from top to bottom. Among them, each widthwise straightening roller group 112 includes two widthwise straightening rollers 112a arranged at intervals along the width direction of the plate-shaped workpiece, and the axial direction of the widthwise straightening roller 112a is along the thickness direction of the plate-shaped workpiece. Among them, each thicknesswise straightening roller group 111 includes two thicknesswise straightening rollers 111a arranged at intervals along the thickness direction of the plate-shaped workpiece, and the axial direction of the thicknesswise straightening roller 111a is along the width direction of the plate-shaped workpiece. For example, in the illustrated embodiment, the first straightening part 11a includes three widthwise straightening roller groups 112 arranged at intervals from top to bottom and two thicknesswise straightening roller groups 111 arranged at intervals from top to bottom. The second straightening part 11b includes three widthwise straightening roller groups 112 arranged at intervals from top to bottom and two thicknesswise straightening roller groups 111 arranged at intervals from top to bottom. With such an arrangement, during the straightening process, the plate-shaped workpiece passes between the two widthwise straightening rollers 112a of the widthwise straightening roller group 112 and between the two thicknesswise straightening rollers 111a of the thicknesswise straightening roller group 111. During this period, the two side surfaces of the plate-shaped workpiece in the width direction respectively contact the outer peripheral surfaces of the widthwise straightening rollers 112a on the same side, so as to be straightened under the rolling pressure of the widthwise straightening rollers 112a, and the two side surfaces of the plate-shaped workpiece in the thickness direction respectively contact the outer peripheral surfaces of the thicknesswise straightening rollers 111a on the same side, so as to be straightened under the rolling pressure of the thicknesswise straightening rollers 111a, so that the four side surfaces of the plate-shaped workpiece all have better flatness and straightness. In other embodiments, the first straightening part 11a and the second straightening part 11b may also be provided with only one of the widthwise straightening roller group 112 and the thicknesswise straightening roller group 111.

[0027] In some embodiments, the widthwise straightening roller 112a and the thicknesswise straightening roller 111a are arranged with a vertical stagger. In the illustrated embodiment, the stagger distance between the central axis of the widthwise straightening roller 112a and the central axis of the thicknesswise straightening roller 111a is less than the sum of the radius of the widthwise straightening roller 112a and the radius of the thicknesswise straightening roller 111a. That is to say, the widthwise straightening roller 112a and the thicknesswise straightening roller 111a are partially staggered rather than completely staggered. In other embodiments, the stagger distance between the central axis of the widthwise straightening roller 112a and the central axis of the thicknesswise straightening roller 111a may also be equal to or greater than the sum of the radius of the widthwise straightening roller 112a and the radius of the thicknesswise straightening roller 111a, so as to completely stagger the widthwise straightening roller 112a and the thicknesswise straightening roller 111a. By arranging the widthwise straightening roller 112a and the thicknesswise straightening roller 111a with a vertical stagger, in this way, for the same length position of the plate-like workpiece, the widthwise straightening and the thicknesswise straightening are carried out alternately one by one, rather than simultaneously. Carrying out alternately one by one is more conducive to ensuring the straightening effects in two directions than carrying out simultaneously.

[0028] In the illustrated embodiment, an annular groove A is provided in the middle of the outer peripheral surface of the widthwise straightening roller 112a. During the straightening process, the two widthwise sides of the plate-like workpiece pass through the annular groove A. By providing the annular groove A, the plate-like workpiece can be better limited, which is more conducive to ensuring the straightening effect. In other embodiments, the outer peripheral surface of the widthwise straightening roller 112a may not be provided with the annular groove A.

[0029] In some embodiments, the quenching section 12 includes two quenching heads 121 arranged at intervals in sequence along the thickness direction of the plate-like workpiece. Both of the two quenching heads 121 have pipe joints 121a for connecting to a cooling medium. The cooling medium can be a liquid or a gas. In the illustrated embodiment, the pipe joint 121a is arranged on the side where the two quenching heads 121 are away from each other, and a groove 121b and a protrusion 121c are provided on the side where the two quenching heads 121 are close to each other (see Figure 3 and Figure 4 ). During quenching, the plate-like workpiece passes between the protrusions 121c of the two quenching heads 121, and the groove 121b can increase the heat exchange area between the cooling medium and the plate-like workpiece.

[0030] In some embodiments, the straightening and quenching device 1 includes a bracket. The bracket includes a supporting portion 14. The above-mentioned quenching section 12, the first straightening section 11a and the second straightening section 11b are all connected to the supporting portion 14. In this way, the quenching section 12 and the straightening section are connected together, making the straightening and quenching device 1 an integrated device, which can be disassembled and assembled as a whole and is more convenient to use.

[0031] The structure of the support part 14 can be designed according to actual requirements, as long as it can serve as the connection basis for the quenching part 12, the first straightening part 11a and the second straightening part 11b. In some embodiments, the support part 14 includes multiple long connecting rods 145, multiple short connecting rods 146 and four vertical rods. The four vertical rods are distributed in a rectangle. Among them, the first vertical rod 141 and the second vertical rod 142 are connected by a long connecting rod 145. In the figure, there is a long connecting rod 145 connected between the upper and lower ends of the first vertical rod 141 and the second vertical rod 142, and two long connecting rods 145 are connected between the middle parts. The second vertical rod 142 and the third vertical rod 143 are connected by a short connecting rod 146. In the figure, there is a short connecting rod 146 connected between the upper, middle and lower ends of the second vertical rod 142 and the third vertical rod 143. The third vertical rod 143 and the fourth vertical rod 144 are connected by a long connecting rod 145. In the figure, there is a long connecting rod 145 connected between the upper and lower ends of the third vertical rod 143 and the fourth vertical rod 144, and two long connecting rods 145 are connected between the middle parts. The fourth vertical rod 144 and the first vertical rod 141 are connected by a short connecting rod 146. In the figure, there is a short connecting rod 146 connected between the upper, middle and lower ends of the fourth vertical rod 144 and the first vertical rod 141. Roller shaft connection holes are provided on all four vertical rods. This structure of the support part 14 is simple and convenient for connecting the quenching part 12, the first straightening part 11a and the second straightening part 11b.

[0032] Specifically, the connection structure between the quenching part 12, the first straightening part 11a and the second straightening part 11b and the above-mentioned support part 14 can be: the roller shafts at both ends of one thickness straightening roller 111a of each thickness straightening roller group 111 are respectively inserted into the roller shaft connection holes of the first vertical rod 141 and the second vertical rod 142, and the roller shafts at both ends of the other thickness straightening roller 111a are respectively inserted into the roller shaft connection holes of the third vertical rod 143 and the fourth vertical rod 144. The roller shafts at both ends of one width straightening roller 112a of each width straightening roller group 112 are respectively inserted into the roller shaft connection holes of the second vertical rod 142 and the third vertical rod 143, and the roller shafts at both ends of the other width straightening roller 112a are respectively inserted into the roller shaft connection holes of the fourth vertical rod 144 and the first vertical rod 141. One quenching head 121 of the quenching part 12 is connected between the first vertical rod 141 and the second vertical rod 142, specifically, it can be connected between the two long connecting rods 145 between the middle parts of the first vertical rod 141 and the second vertical rod 142, and the other quenching head 121 is connected between the third vertical rod 143 and the fourth vertical rod 144, specifically, it can be connected between the two long connecting rods 145 between the middle parts of the third vertical rod 143 and the fourth vertical rod 144. Preferably, bearings can be installed in the roller shaft connection holes, and the roller shafts of the straightening rollers are inserted into the bearings in the roller shaft connection holes.

[0033] In some embodiments, the vertical rod is detachably connected to the long connecting rod 145 and the short connecting rod 146. For example, in the illustrated embodiment, the vertical rod is connected to the long connecting rod 145 and the short connecting rod 146 by threaded fasteners. When producing plate-shaped workpieces of different specifications, it is necessary to replace the width straightening rollers 112a and the thickness straightening rollers 111a of different specifications. Since the vertical rod is detachably connected to the long connecting rod 145 and the short connecting rod 146, the width dimension and the thickness dimension of the support portion 14 can be adjusted by replacing the long connecting rod 145 and the short connecting rod 146 of different specifications, so as to meet the connection requirements of the width straightening rollers 112a and the thickness straightening rollers 111a of different specifications.

[0034] In some embodiments, the bracket further includes a connecting portion 13. The connecting portion 13 is connected to the support portion 14 and is used for fixing to the die bottom plate 22 of the asymmetric extrusion device 2.

[0035] In some embodiments, the connecting portion 13 includes a plurality of support rods 131. The lower ends of the support rods 131 are connected to the support portion 14. The upper ends of the support rods 131 are inclined outward relative to the lower ends, so as to provide enough space for the cutting device to cut the plate-shaped workpiece extruded from the extrusion outlet 21. A horizontal connecting block 132 is connected to the upper end of each support rod 131, and is fixedly connected to the die bottom plate 22 of the asymmetric extrusion device 2 through the horizontal connecting block 132. In the illustrated embodiment, the connecting portion 13 includes four support rods 131, and the lower ends of the four inclined support rods 131 are respectively connected to the upper ends of the four vertical rods.

[0036] In actual implementation, the height differences of the width straightening roller sets 112 and the thickness straightening roller sets 111 of different straightening portions and the same straightening portion, as well as the dimensions of the support portion 14 and the connecting portion 13 of the bracket, the dimensions of the width straightening rollers 112a, the dimensions of the thickness straightening rollers 111a, the dimensions of the quenching portion 12, etc. can all be designed according to actual requirements.

[0037] In summary, the straightening and quenching device 1 provided by the present application can straighten and quench the plate-shaped workpiece extruded by the asymmetric extrusion device 2 and straighten the quenched plate-shaped workpiece, which can not only correct the slight deformation of the plate-shaped workpiece caused during the extrusion process, but also correct the slight deformation of the plate-shaped workpiece caused by the residual stress during the quenching process, so as to ensure that the finally produced plate-shaped workpiece has good flatness and straightness.

[0038] The above uses specific examples to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A straightening and quenching device, characterized in that, The straightening and quenching device (1) includes a first straightening part (11a), a second straightening part (11b), and a quenching part (12). The first straightening part (11a) is located below the extrusion outlet (21) of the asymmetric extrusion device (2) and above the quenching part (12), and is used to straighten the plate-shaped workpiece after extrusion and before quenching. The second straightening part (11b) is located below the quenching part (12) and is used to straighten the plate-shaped workpiece after quenching.

2. The straightening and quenching device according to claim 1, characterized in that, Both the first straightening part (11a) and the second straightening part (11b) include: a plurality of widthwise straightening roll groups (112) arranged at intervals from top to bottom, and a plurality of thicknesswise straightening roll groups (111) arranged at intervals from top to bottom; each widthwise straightening roll group (112) includes two widthwise straightening rolls (112a) arranged at intervals along the width direction of the plate-shaped workpiece, and the axial direction of the widthwise straightening roll (112a) is along the thickness direction of the plate-shaped workpiece; each thicknesswise straightening roll group (111) includes two thicknesswise straightening rolls (111a) arranged at intervals along the thickness direction of the plate-shaped workpiece, and the axial direction of the thicknesswise straightening roll (111a) is along the width direction of the plate-shaped workpiece.

3. The straightening and quenching device according to claim 2, wherein, The widthwise straightening rolls (112a) and the thicknesswise straightening rolls (111a) are arranged in a vertically staggered manner.

4. The straightening and quenching device (1) according to claim 2, characterized in that, An annular groove (A) is provided in the middle of the outer peripheral surface of the widthwise straightening roll (112a). During the straightening process, a part of the plate-shaped workpiece passes through the annular groove (A).

5. The straightening and quenching device according to any one of claims 2-4, characterized in that, The straightening and quenching device (1) includes a bracket, and the bracket includes a support part (14). The quenching part (12), the first straightening part (11a), and the second straightening part (11b) are all connected to the support part (14).

6. The straightening and quenching device according to claim 5, characterized in that, The support part (14) includes a plurality of long connecting rods (145), a plurality of short connecting rods (146), and four vertical rods distributed in a rectangle. Each of the four vertical rods is provided with a roller shaft connection hole. Among them, the first vertical rod (141) and the second vertical rod (142) are connected by a long connecting rod (145), the second vertical rod (142) and the third vertical rod (143) are connected by a short connecting rod (146), the third vertical rod (143) and the fourth vertical rod (144) are connected by a long connecting rod (145), and the fourth vertical rod (144) and the first vertical rod (141) are connected by a short connecting rod (146).

7. The straightening and quenching device according to claim 6, characterized in that, The roller shafts at both ends of one thicknesswise straightening roll (111a) of each thicknesswise straightening roll group (111) are respectively inserted into the roller shaft connection holes of the first vertical rod (141) and the second vertical rod (142), and the roller shafts at both ends of the other thicknesswise straightening roll (111a) are respectively inserted into the roller shaft connection holes of the third vertical rod (143) and the fourth vertical rod (144); the roller shafts at both ends of one widthwise straightening roll (112a) of each widthwise straightening roll group (112) are respectively inserted into the roller shaft connection holes of the second vertical rod (142) and the third vertical rod (143), and the roller shafts at both ends of the other widthwise straightening roll (112a) are respectively inserted into the roller shaft connection holes of the fourth vertical rod (144) and the first vertical rod (141).

8. The straightening and quenching device according to claim 6, characterized in that, The quenching section (12) includes two quenching heads (121) that are sequentially arranged at intervals along the thickness direction of the plate-shaped workpiece. One of the quenching heads (121) is connected between the first vertical rod (141) and the second vertical rod (142), and the other quenching head (121) is connected between the third vertical rod (143) and the fourth vertical rod (144). Both of the two quenching heads (121) are provided with pipe joints (121a) for accessing the cooling medium.

9. The straightening and quenching device according to claim 5, characterized in that, The bracket further includes a connecting portion (13). The connecting portion (13) is connected to the supporting portion (14) and is used for fixedly connecting with the die bottom plate (22) of the asymmetric extrusion device (2).

10. The straightening and quenching device according to claim 9, characterized in that, The connecting portion (13) includes a plurality of support rods (131). The lower ends of the support rods (131) are connected to the supporting portion (14). The upper ends of the support rods (131) are inclined outward relative to the lower ends. Each upper end of the support rods (131) is connected with a horizontal connecting block (132), and is fixedly connected with the die bottom plate (22) of the asymmetric extrusion device (2) through the horizontal connecting block (132).

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