Mechanical residual stress reduction device

Abstract

The utility model discloses a kind of mechanical residual stress relieving devices, including drive pedestal, mobile frame and bracket guide rail are provided on drive pedestal, mobile frame can be driven to move reciprocatingly transversely under the drive of drive pedestal, adjustable limit block is provided on bracket guide rail, adjustable limit block can reciprocate along bracket guide rail vertically, mobile frame is provided with gyro wheel group and drive assembly, gyro wheel group is rotated and height is adjusted by drive assembly drive.This mechanical residual stress relieving device provided by the utility model forms the space required by the cross-sectional dimension requirement of corresponding board through gyro wheel group and adjustable limit block, makes board mechanical setting under the synergic driving of first gyro wheel and second gyro wheel, stress distribution is uniform, realize the stress balance of overall structure, solve the problem that board cannot satisfy flatness and other size requirements in prior art due to internal residual stress unilateral warping and torsional deformation, overall structure is simple, design is ingenious, with greater popularization and application value.

Description

Technical Field

[0001] This utility model specifically relates to a mechanical device for reducing residual stress. Background Technology

[0002] Stamped metal sheets, such as Figure 1 As shown, it is mainly used in integrated circuit lead frames, etc. After the stamping process, the metal sheet is subjected to mechanical impact, and the residual stress inside it will cause the sheet to warp and twist on one side, making it unable to meet the dimensional requirements such as flatness.

[0003] Based on this, the present invention discloses a mechanical device for reducing residual stress. Utility Model Content

[0004] To address the problems in the prior art, the purpose of this utility model is to provide a mechanical device for reducing residual stress.

[0005] To achieve the above objectives and technical effects, the technical solution adopted by this utility model is as follows:

[0006] A mechanical residual stress relief device includes a drive base, on which a movable frame and a support rail are mounted. The movable frame can move laterally and reciprocally under the drive of the drive base. An adjustable limit block is mounted on the support rail, which can move vertically and reciprocally along the support rail. The movable frame is equipped with a roller assembly and a drive component, which drives the roller assembly to rotate and adjust its height.

[0007] Furthermore, the drive base includes two fixed beams arranged face to face, two guide rails symmetrically arranged between the two fixed beams, and a lead screw arranged between the two guide rails. The lead screw is connected to a first motor and a movable frame. The first motor is mounted on one of the fixed beams. The first motor drives the lead screw to rotate, thereby causing the movable frame to move laterally back and forth along the guide rails.

[0008] Furthermore, the bottom ends of the movable frame are respectively connected to the guide rail via a first connecting slider, the bottom of the movable frame is connected to the lead screw via a ball slider, and the bottom ends of the support guide rail are respectively connected to the guide rail via a second connecting slider.

[0009] Furthermore, the movable frame includes an active frame and a driven frame, with their tops connected together by a top support. The active frame includes a connecting beam I, two vertical guide rails I arranged at both ends of the connecting beam I, and a connecting beam II arranged between the two vertical guide rails I. The connecting beam I is located at the bottom of the active frame and is connected to the guide rails via a first connecting slider. The connecting beam I is also connected to the lead screw via a ball bearing slider. Several first vertical lead screws are vertically arranged between the connecting beam I and the top support. The driven frame includes a connecting beam III, two vertical guide rails II arranged at both ends of the connecting beam III, and a connecting beam III. The system includes a guide rail II and a connecting beam IV positioned between two vertical guide rails II. The connecting beam III is located at the bottom of the driven frame and connected to the guide rail via a first connecting slider. Several second vertical screws are vertically arranged between the connecting beam III and the top support. The first vertical screw passes vertically through the connecting beam II, and the second vertical screws pass vertically through the connecting beam IV. By controlling the rotation of the first vertical screw, the connecting beam II and its roller assembly can be driven to reciprocate vertically along the vertical guide rail I. By controlling the rotation of the second vertical screw, the connecting beam IV and its roller assembly can be driven to reciprocate vertically along the vertical guide rail II.

[0010] Furthermore, the two opposite ends of the connecting beam II are respectively connected to the vertical guide rail I via slider I, and the connecting beam IV is respectively connected to the vertical guide rail II via slider II.

[0011] Furthermore, each first vertical lead screw is connected to a first drive motor, and each second vertical lead screw is connected to a second drive motor. The first drive motor and the second drive motor are respectively mounted on the top bracket.

[0012] Furthermore, the roller assembly includes multiple first rollers mounted on connecting beam II and multiple second rollers mounted on connecting beam IV. The drive assembly includes multiple gears, several first motors mounted on the drive frame, and several second motors mounted on the driven frame. Each first roller is connected to a gear, and each second roller is connected to a gear. The first motor drives the gear connected to the first roller to rotate, thereby rotating the first roller. The second motor drives the gear connected to the second roller to rotate, thereby rotating the second roller. The first gear and the second gear rotate synchronously or asynchronously.

[0013] Furthermore, the first rollers are divided into two rows and do not contact each other. There are two connecting beams II, each with a row of first rollers. The second rollers are divided into two rows and do not contact each other. There are two connecting beams IV, each with a row of second rollers. The adjustable limiting block is placed between the first rollers and the second rollers.

[0014] Furthermore, a guide block I is fitted onto the first vertical lead screw, with one guide block I on the first vertical lead screw positioned above the connecting beam II, and the other guide block I on the first vertical lead screw positioned below the connecting beam II.

[0015] Furthermore, a guide block II is fitted onto the second vertical screw, with one guide block II on the second vertical screw positioned above the connecting beam IV, and the other guide block II on the second vertical screw positioned below the connecting beam IV.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model discloses a mechanical residual stress reduction device, including a drive base, a movable frame and a support rail on the drive base. The movable frame can move laterally back and forth under the driving action of the drive base. An adjustable limit block is provided on the support rail, which can move vertically back and forth along the support rail. The movable frame is provided with a roller group and a drive component. The drive component drives the roller group to rotate and adjust its height. The roller group and the adjustable limit block form the space required for the cross-sectional dimensions of the plate. Under the coordinated drive of the first roller and the second roller, the plate is mechanically shaped, the stress is evenly distributed, and the stress balance of the overall structure is achieved. This solves the problem in the prior art that the plate cannot meet the dimensional requirements such as flatness due to unilateral warping and torsional deformation caused by internal residual stress. The overall structure is simple and ingeniously designed, and has great potential for widespread application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a metal sheet in the prior art;

[0019] Figure 2-3 These are three-dimensional structural schematic diagrams of this utility model;

[0020] Figure 4 This is the front view of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of this utility model after the bracket guide rail and adjustable limit block have been removed;

[0022] Figure 6 This is a structural diagram of a sheet metal being bent in one step. Detailed Implementation

[0023] The present invention will now be described in detail so that its advantages and features can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0024] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0025] like Figure 2-6 As shown, a mechanical residual stress relief device includes a drive base, wherein a movable frame and a support rail 1 are provided on the drive base. The movable frame can move laterally reciprocally under the driving action of the drive base. An adjustable limit block 2 is provided on the support rail 1. The adjustable limit block 2 can move vertically reciprocally along the support rail 1. A roller assembly and a drive component are provided on the movable frame. The drive component drives the roller assembly to rotate and adjust its height.

[0026] In some embodiments, the drive base includes two fixed beams 3 arranged face to face, two guide rails 4 symmetrically arranged between the two fixed beams 3, and a lead screw 5 arranged between the two guide rails 4. The lead screw 5 is connected to a first motor 6 and a movable frame. The first motor 6 is mounted on one of the fixed beams 3. The first motor 6 drives the lead screw 5 to rotate, thereby driving the movable frame to move laterally back and forth along the guide rails 4.

[0027] In some embodiments, the bottom ends of the movable frame are connected to the guide rail 4 via first connecting sliders 7, the bottom of the movable frame is connected to the lead screw 5 via ball sliders 8, and the bottom ends of the support guide rail 1 are connected to the guide rail 4 via second connecting sliders 9.

[0028] In some embodiments, the movable frame includes an active frame and a driven frame, with their tops connected together by a top support 10. The active frame includes a connecting beam I 111, two vertical guide rails I 12 vertically arranged at both ends of the connecting beam I 111, and a connecting beam II 13 arranged between the two vertical guide rails I 12. The connecting beam I 111 is located at the bottom of the active frame, and its bottom ends are connected to the guide rails 4 via first connecting sliders 7. The connecting beam I 111 is connected to the lead screw 5 via ball sliders 8. Several first vertical lead screws 14 are vertically arranged between the connecting beam I 111 and the top support 10. The driven frame includes a connecting beam III 15, two vertical guide rails II 16 vertically arranged at both ends of the connecting beam III 15, and... A connecting beam IV17 is set between two vertical guide rails II16, and a connecting beam III15 is set at the bottom of the driven frame. The two ends of the bottom of the connecting beam III15 are connected to the guide rail 4 through the first connecting slider 7. Several second vertical screws 18 are vertically set between the connecting beam III15 and the top support 10. The first vertical screw 14 passes vertically through the connecting beam II13, and the second vertical screw 18 passes vertically through the connecting beam IV17. By controlling the rotation of the first vertical screw 14, the connecting beam II13 and the roller group on it can be driven to reciprocate vertically along the vertical guide rail I12. By controlling the rotation of the second vertical screw 18, the connecting beam IV17 and the roller group on it can be driven to reciprocate vertically along the vertical guide rail II16.

[0029] In some embodiments, the two opposite ends of the connecting beam II13 are connected to the vertical guide rail I12 via slider I19, and the connecting beam IV17 is connected to the vertical guide rail II16 via slider II20.

[0030] In some embodiments, each first vertical lead screw 14 is connected to a first drive motor 21, and each second vertical lead screw 18 is connected to a second drive motor 22. The first drive motor 21 and the second drive motor 22 are respectively mounted on the top bracket 10.

[0031] In some embodiments, the roller assembly includes a plurality of first rollers 23 disposed on connecting beam II 13 and a plurality of second rollers 24 disposed on connecting beam IV 17. The drive assembly includes a plurality of gears 25, a plurality of first motors 26 disposed on the drive frame and a plurality of second motors 27 disposed on the driven frame. Each first roller 23 is connected to a gear 25 and each second roller 24 is connected to a gear 25. The first motors 26 drive the gears 25 connected to the first rollers 23 to rotate and drive the first rollers 23 to rotate. The second motors 27 drive the gears 25 connected to the second rollers 24 to rotate and drive the second rollers 24 to rotate. The first gears 23 and the second gears 24 can rotate synchronously or asynchronously.

[0032] In some embodiments, the first rollers 23 are divided into two rows and do not contact each other. There are two connecting beams II 13, and each connecting beam II 13 is provided with a row of first rollers 23. The second rollers 24 are divided into two rows and do not contact each other. There are two connecting beams IV 17, and each connecting beam IV 17 is provided with a row of second rollers 24. The adjustable limiting block 2 is placed between the first rollers 23 and the second rollers 24.

[0033] In some implementations, the first rollers 23 in the same row move synchronously and rotate in the same direction, while the first rollers 23 in different rows may move synchronously or asynchronously, and rotate in the same or different directions.

[0034] In some embodiments, the second rollers 24 in the same row move synchronously and rotate in the same direction, while the second rollers 24 in different rows may move synchronously or asynchronously, and rotate in the same or different directions.

[0035] In some embodiments, a guide block I28 is sleeved on the first vertical lead screw 14, with one guide block I28 on the first vertical lead screw 14 positioned above the connecting beam II 13, and the other guide block I28 on the first vertical lead screw 14 positioned below the connecting beam II 13.

[0036] In some embodiments, a guide block II 29 is sleeved on the second vertical screw 18, with one guide block II 29 on the second vertical screw 18 positioned above the connecting beam IV 17 and the other guide block II 29 on the second vertical screw 18 positioned below the connecting beam IV 17.

[0037] In use, the roller assembly and adjustable limit block 2 form the space required for the cross-sectional dimensions of the corresponding metal sheet. Under the coordinated action of the first roller 23 and the second roller 24, the sheet is mechanically shaped, resulting in a uniform stress distribution during elastic-plastic deformation and achieving stress balance. Figure 5 As shown;

[0038] After removing the bracket guide rail 1 and the adjustable limit block 2, the sheet metal can be bent in one step by adjusting the height gap between the first roller 23 and the second roller 24. Figure 6 As shown.

[0039] Example 1

[0040] like Figure 2-6 As shown, a mechanical residual stress relief device includes a drive base, wherein a movable frame and a support rail 1 are provided on the drive base. The movable frame can move laterally reciprocally under the driving action of the drive base. An adjustable limit block 2 is provided on the support rail 1. The adjustable limit block 2 can move vertically reciprocally along the support rail 1. A roller assembly and a drive component are provided on the movable frame. The drive component drives the roller assembly to rotate and adjust its height.

[0041] In this embodiment, the drive base includes two fixed beams 3 arranged face to face, two guide rails 4 symmetrically arranged between the two fixed beams 3, and a lead screw 5 arranged between the two guide rails 4. The lead screw 5 is connected to a first motor 6 and a movable frame. The first motor 6 is mounted on one of the fixed beams 3. The first motor 6 drives the lead screw 5 to rotate, thereby driving the movable frame to move laterally back and forth along the guide rails 4.

[0042] The bottom ends of the movable frame are connected to the guide rail 4 via the first connecting slider 7, and the bottom of the movable frame is connected to the lead screw 5 via the ball slider 8. The bottom ends of the bracket guide rail 1 are connected to the guide rail 4 via the second connecting slider 9.

[0043] The movable frame includes an active frame and a passive frame, with their tops connected together by a top support 10. The active frame includes a connecting beam I 11, two vertical guide rails I 12 positioned at both ends of the connecting beam I 11, and a connecting beam II 13 positioned between the two vertical guide rails I 12. The connecting beam I 11 is located at the bottom of the active frame, and its bottom ends are connected to guide rails 4 via first connecting sliders 7. The connecting beam I 11 is also connected to lead screws 5 via ball bearing sliders 8. Two first vertical lead screws 14 are vertically positioned between the connecting beam I 11 and the top support 10. The passive frame includes a connecting beam III 15, two vertical guide rails II 16 positioned at both ends of the connecting beam III 15, and a connecting beam IV 17 positioned between the two vertical guide rails II 16. The connecting beam III 15 is located at the bottom of the passive frame, and its bottom ends are connected to guide rails 4 via first connecting sliders 7. The connecting slider 7 is connected to the guide rail 4. Two second vertical screws 18 are vertically arranged between the connecting beam Ⅲ 15 and the top support 10. The first vertical screw 14 passes vertically through the connecting beam Ⅱ 13, and the second vertical screw 18 passes vertically through the connecting beam Ⅳ 17. Each first vertical screw 14 is connected to a first drive motor 21, and each second vertical screw 18 is connected to a second drive motor 22. The first drive motor 21 and the second drive motor 22 are respectively set on the top support 10. The first drive motor 21 controls the rotation of the first vertical screw 14, which can drive the connecting beam Ⅱ 13 and its roller assembly to reciprocate vertically along the vertical guide rail Ⅰ 12. The second drive motor 22 controls the rotation of the second vertical screw 18, which can drive the connecting beam Ⅳ 17 and its roller assembly to reciprocate vertically along the vertical guide rail Ⅱ 16.

[0044] The two opposite ends of connecting beam II13 are connected to vertical guide rail I12 via slider I19, and connecting beam IV17 is connected to vertical guide rail II16 via slider II20.

[0045] The roller assembly includes multiple first rollers 23 mounted on connecting beam II 13 and multiple second rollers 24 mounted on connecting beam IV 17. The drive assembly includes multiple gears 25, two first motors 26 mounted on the drive frame, and two second motors 27 mounted on the driven frame. Each first roller 23 is connected to a gear 25, and each second roller 24 is connected to a gear 25. The first motors 26 drive the gears 25 connected to the first rollers 23 to rotate, thereby rotating the first rollers 23. The second motors 27 drive the gears 25 connected to the second rollers 24 to rotate, thereby rotating the second rollers 24. The first gears 23 and the second gears 24 can rotate synchronously or asynchronously.

[0046] The first rollers 23 are divided into two rows and do not contact each other. There are two connecting beams II 13, and each connecting beam II 13 is provided with a row of first rollers 23. The second rollers 24 are divided into two rows and do not contact each other. There are two connecting beams IV 17, and each connecting beam IV 17 is provided with a row of second rollers 24. The adjustable limit block 2 is placed between the first rollers 23 and the second rollers 24.

[0047] The first rollers 23 in the same row move synchronously and rotate in the same direction. The first rollers 23 in different rows may move synchronously or asynchronously, and rotate in the same or different directions.

[0048] The second rollers 24 in the same row move synchronously and rotate in the same direction. The second rollers 24 in different rows may move synchronously or asynchronously, and rotate in the same or different directions.

[0049] Guide blocks I28 are fitted on the first vertical lead screw 14. One of the guide blocks I28 on the first vertical lead screw 14 is positioned above the connecting beam II 13, and the other guide block I28 on the first vertical lead screw 14 is positioned below the connecting beam II 13.

[0050] Guide blocks II 29 are fitted on the second vertical screw 18. One guide block II 29 on the second vertical screw 18 is positioned above the connecting beam IV 17, and the other guide block II 29 on the second vertical screw 18 is positioned below the connecting beam IV 17.

[0051] In use, the roller assembly and adjustable limit block 2 form the space required for the cross-sectional dimensions of the corresponding metal sheet. Under the coordinated action of the first roller 23 and the second roller 24, the sheet is mechanically shaped, resulting in a uniform stress distribution during elastic-plastic deformation and achieving stress balance. Figure 5 As shown;

[0052] After removing the bracket guide rail 1 and the adjustable limit block 2, the sheet metal can be bent in one step by adjusting the height gap between the first roller 23 and the second roller 24. Figure 6 As shown.

[0053] The parts or structures not specifically described in this utility model can be made using existing technology or existing products, and will not be elaborated here.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mechanical device for reducing residual stress, characterized in that, The device includes a drive base, on which a movable frame and a support rail are mounted. The movable frame can move laterally and reciprocally under the drive of the drive base. The support rail is equipped with an adjustable limit block, which can move vertically and reciprocally along the support rail. The movable frame is equipped with a roller assembly and a drive component, which drives the roller assembly to rotate and adjust its height.

2. The mechanical residual stress relief device according to claim 1, characterized in that, The drive base includes two fixed beams arranged face to face, two guide rails symmetrically arranged between the two fixed beams, and a lead screw between the two guide rails. The lead screw is connected to a first motor and a movable frame. The first motor is mounted on one of the fixed beams. The first motor drives the lead screw to rotate, thereby causing the movable frame to move laterally back and forth along the guide rails.

3. The mechanical residual stress relief device according to claim 2, characterized in that, The bottom ends of the movable frame are connected to the guide rail via first connecting sliders, the bottom of the movable frame is connected to the lead screw via ball sliders, and the bottom ends of the support guide rail are connected to the guide rail via second connecting sliders.

4. The mechanical residual stress relief device according to claim 2, characterized in that, The movable frame includes an active frame and a driven frame, which are connected together at their tops by a top support. The active frame includes a connecting beam I, two vertical guide rails I arranged at both ends of the connecting beam I, and a connecting beam II arranged between the two vertical guide rails I. The connecting beam I is located at the bottom of the active frame and is connected to the guide rails via a first connecting slider. The connecting beam I is also connected to a lead screw via a ball bearing slider. Several first vertical lead screws are vertically arranged between the connecting beam I and the top support. The driven frame includes a connecting beam III and two vertical guide rails arranged at both ends of the connecting beam III. II and a connecting beam IV disposed between two vertical guide rails II. The connecting beam III is disposed at the bottom of the driven frame and connected to the guide rail through a first connecting slider. Several second vertical screws are vertically disposed between the connecting beam III and the top support. The first vertical screw passes vertically through the connecting beam II, and the second vertical screw passes vertically through the connecting beam IV. By controlling the rotation of the first vertical screw, the connecting beam II and the roller assembly on it can be driven to reciprocate vertically along the vertical guide rail I. By controlling the rotation of the second vertical screw, the connecting beam IV and the roller assembly on it can be driven to reciprocate vertically along the vertical guide rail II.

5. The mechanical residual stress relief device according to claim 4, characterized in that, The two opposite ends of the connecting beam II are respectively connected to the vertical guide rail I via slider I, and the connecting beam IV is respectively connected to the vertical guide rail II via slider II.

6. The mechanical residual stress relief device according to claim 4, characterized in that, Each first vertical lead screw is connected to a first drive motor, and each second vertical lead screw is connected to a second drive motor. The first drive motor and the second drive motor are respectively mounted on the top bracket.

7. The mechanical residual stress relief device according to claim 4, characterized in that, The roller assembly includes multiple first rollers mounted on connecting beam II and multiple second rollers mounted on connecting beam IV. The drive assembly includes multiple gears, several first motors mounted on the drive frame, and several second motors mounted on the driven frame. Each first roller is connected to a gear, and each second roller is connected to a gear. The first motor drives the gear connected to the first roller to rotate, thereby rotating the first roller. The second motor drives the gear connected to the second roller to rotate, thereby rotating the second roller. The first roller and the second roller rotate synchronously or asynchronously.

8. The mechanical residual stress relief device according to claim 7, characterized in that, The first rollers are divided into two rows and do not contact each other. There are two connecting beams II, and each connecting beam II is provided with a row of first rollers. The second rollers are divided into two rows and do not contact each other. There are two connecting beams IV, and each connecting beam IV is provided with a row of second rollers. The adjustable limiting block is placed between the first rollers and the second rollers.

9. A mechanical residual stress relief device according to claim 4, characterized in that, Guide block I is fitted on the first vertical lead screw, with one guide block I on the first vertical lead screw positioned above the connecting beam II, and the other guide block I on the first vertical lead screw positioned below the connecting beam II.

10. A mechanical residual stress relief device according to claim 4, characterized in that, Guide blocks II are fitted onto the second vertical screw, with one guide block II on the second vertical screw positioned above the connecting beam IV, and the other guide block II on the second vertical screw positioned below the connecting beam IV.

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