A finishing device for a periodically variable-thickness differential-thickness plate

Abstract

The present application relates to the technical field of metal cutting, in particular to a kind of rolling differential thick plate finishing equipment of periodic variable cross-section thickness, including the conveying belt being arranged on machine tool base, and two groups of T-shaped seat being oppositely arranged on both sides of machine tool base, two groups of T-shaped seat are all equipped with disc cutting group, when using, by driving part driving disc cutting group is rotated, when the thick area of equipment shearing differential thick plate to be sheared, cooperate transmission part to make disc cutting group obtain relatively lower speed, disc cutting group speed reduces, to adapt to the requirement of large shear force, relatively lower linear velocity needed by thick area shearing, guarantee shearing completely and smoothly, when the thin area of equipment shearing differential thick plate to be sheared, cooperate transmission part to make disc cutting group obtain relatively higher speed when shearing thin area, match the higher linear velocity needed by sheet shearing, optimize shearing quality, realize high speed, self-adapting, high quality finishing to periodic variable thickness differential thick plate.

Description

Technical Field

[0001] This invention relates to the field of metal cutting technology, and in particular to a finishing equipment for rolled differential thickness plates with periodically variable cross-sectional thickness. Background Technology

[0002] Rolled differential thickness plates are plates whose thickness varies continuously and periodically along the rolling direction, obtained through flexible rolling processes. They have broad application prospects in the automotive and aerospace industries, enabling lightweight structures. However, this periodically varying thickness characteristic makes subsequent finishing difficult. Existing technologies use fixed shearing machines to trim or slit differential thickness plates, employing paired rotating disc shears to cut and trim the two edges of the plate.

[0003] For example, Chinese patent application number CN202510540456.5 discloses a metal shearing machine tool, including two sets of T-shaped seats. A rotating shaft is rotatably connected to the T-shaped seat, and a disc shear is fixed to the end of the rotating shaft. A cylindrical platform is set on the outer side of the disc shear. A portal frame is vertically slidably connected to the T-shaped seat, and a rotating shaft is rotatably connected to the upper part of the portal frame. A disc shear is fixed to the end of the rotating shaft and is located above the cylindrical platform. The two edges of the plate are sheared and trimmed by the paired rotating disc shears. However, for rolled differential thickness plates with periodically variable cross-sectional thickness, when shearing the thin area, excessive shearing gap and downward pressure may cause plate deformation, increased burrs, or even tearing; while when shearing the thick area, insufficient shearing force may lead to incomplete shearing and uneven cuts. That is, in high-speed continuous production, the real-time response to thickness changes is insufficient, and the adjustment is lagging, making it impossible to achieve truly synchronized "adaptive" precision shearing with the plate thickness fluctuations. Summary of the Invention

[0004] In view of this, the purpose of this invention is to propose a rolling differential thickness plate finishing equipment with periodic variable cross-sectional thickness, so as to solve the technical problem that the existing technology has insufficient real-time response to thickness changes in high-speed continuous production, and the adjustment is lagging, and it is impossible to achieve "adaptive" precision shearing that is truly synchronized with the plate thickness fluctuation.

[0005] To achieve the above objectives, the present invention provides a finishing apparatus for rolled differential thickness plates with periodically varying cross-sectional thickness, comprising a conveyor belt mounted on a machine tool base, and two sets of T-shaped seats positioned opposite each other on both sides of the machine tool base. Each set of T-shaped seats is equipped with a disc cutting assembly, which includes an upper disc and a lower disc that cooperate with each other. Cutting blades are evenly distributed around the outer edges of the upper and lower discs. The differential thickness plate to be sheared is placed between the cutting blades of the upper and lower discs. The finishing apparatus further includes:

[0006] Mounting bracket provided on the T-shaped base;

[0007] A lifting frame is slidably mounted on the mounting frame, and the disc cutting assembly is rotatably mounted on the lifting frame;

[0008] The abutment wheel is provided on the lifting frame, and the abutment wheel is close to the surface of the differential thickness plate to be sheared;

[0009] A drive unit for driving the disc cutting assembly to rotate and maintaining adaptive lifting;

[0010] A transmission unit for adaptively adjusting the rotational speed of the disc cutting group.

[0011] Furthermore, the outer edges of the upper and lower discs are evenly distributed with insertion holes, the insertion end of the cutter is designed to prevent fooling, and the cutter is detachably installed in the insertion hole by bolts.

[0012] Furthermore, the upper end of the abutment wheel is provided with a straight rod, which is slidably mounted on the mounting frame. The top of the straight rod is fixedly mounted on the lifting frame. A spring is sleeved on the straight rod, with one end of the spring abutting against the top of the abutment wheel and the other end of the spring abutting against the mounting frame. Guide rods are also provided on both sides of the straight rod on the lifting frame, and the guide rods are slidably mounted on the mounting frame.

[0013] Furthermore, the lifting frame is equipped with a jet head, and the jet port of the jet head faces the shearing direction of the abutment wheel and the shearing point of the differential thickness plate to be sheared.

[0014] Furthermore, the drive unit includes:

[0015] The drive motor is mounted on the T-shaped base;

[0016] A U-shaped rotating arm is provided at the output end of the drive motor;

[0017] A cross guide frame is slidably mounted on the U-shaped rotating arm;

[0018] A second U-shaped rotating arm is slidably mounted on the cross guide frame;

[0019] A rotating shaft is provided on the second U-shaped rotating arm, and the rotating shaft passes through the lifting frame;

[0020] Rotary shaft two is mounted on the lifting frame. Rotary shaft one and rotating shaft two are equipped with gear sets, and the disc cutting set is mounted on rotating shaft two.

[0021] Furthermore, the gear set includes gear one and gear two disposed on the first rotating shaft, and gear three and gear four disposed on the second rotating shaft.

[0022] Furthermore, the diameter of gear one is larger than that of gear two, and the diameter of gear three is larger than that of gear four. When the disc cutting group cuts the large thickness area of ​​the plate to be sheared, gear one and gear four mesh. When the disc cutting group cuts the small thickness area of ​​the plate to be sheared, gear two and gear three mesh.

[0023] Furthermore, the transmission unit includes:

[0024] The base plate is bolted to the lifting frame.

[0025] A connecting rod that is hinged at one end to the base plate;

[0026] The slide bar is provided on the mounting bracket;

[0027] A sliding plate is mounted on the sliding rod, and the other end of the connecting rod is hinged to the sliding plate;

[0028] A telescopic rod with one end attached to the slide plate;

[0029] A sliding block is provided at the other end of the telescopic rod, and gear one and gear two are placed on the sliding block.

[0030] Furthermore, gear one and gear two are slidably mounted on shaft one by means of a sleeve, and the sleeve is rotatably mounted on the sliding block.

[0031] Furthermore, both the upper and lower disks are hollow structures, and there is a gap between two adjacent cutters on the upper and lower disks.

[0032] The beneficial effects of this invention are as follows: In use, the drive unit drives the disc cutting assembly to rotate. When the equipment is shearing the thick area of ​​the plate with varying thickness, the transmission unit enables the disc cutting assembly to obtain a relatively low rotational speed. The reduced rotational speed of the disc cutting assembly is adapted to the requirements of larger shearing force and relatively lower linear speed for shearing thick areas, ensuring thorough and stable shearing. When the equipment is shearing the thin area of ​​the plate with varying thickness, the transmission unit enables the disc cutting assembly to obtain a relatively higher rotational speed when shearing the thin area, matching the higher linear speed required for shearing thin plates, optimizing the shearing quality, and realizing high-speed, adaptive, and high-quality precision machining of periodically varying thickness plates. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is an assembly diagram of some structures in this invention;

[0036] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0037] Figure 4 This is an assembly diagram of the drive unit in this invention;

[0038] Figure 5 This is a schematic diagram of the assembly of the drive unit and the lower disk in this invention;

[0039] Figure 6 This is an exploded view of the upper disk structure in this invention;

[0040] Figure 7 This is a schematic diagram of the assembly of the transmission part in this invention.

[0041] The diagram is marked as follows:

[0042] 1. Machine base; 2. Conveyor belt; 3. T-shaped seat; 4. Upper disc; 5. Lower disc; 6. Cutting blade; 7. Plate of varying thickness to be sheared; 8. Mounting frame; 9. Lifting frame; 10. Supporting wheel; 11. Straight rod; 12. Spring; 13. Guide rod; 14. Jet nozzle; 15. Drive motor; 16. U-shaped rotating arm one; 17. Cross guide frame; 18. U-shaped rotating arm two; 19. Rotating shaft one; 20. Rotating shaft two; 21. Gear one; 22. Gear two; 23. Gear three; 24. Gear four; 25. Base plate; 26. Connecting rod; 27. Slide rod; 28. Slide plate; 29. ​​Telescopic rod; 30. Sliding block. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0044] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] In a first aspect, the present invention provides a finishing apparatus for rolled differential thickness plates with periodically varying cross-sectional thickness, such as... Figure 1-7 As shown, the equipment includes a conveyor belt 2 mounted on a machine tool base 1, and two sets of T-shaped seats 3 positioned opposite each other on both sides of the machine tool base 1. Each set of T-shaped seats 3 is equipped with a disc cutting assembly, which includes an upper disc 4 and a lower disc 5 that cooperate with each other. Cutting blades 6 are evenly distributed around the outer edges of the upper disc 4 and the lower disc 5. The differentially thick plate 7 to be sheared is placed between the cutting blades 6 of the upper disc 4 and the lower disc 5. The finishing equipment also includes:

[0046] Mounting bracket 8 is provided on T-shaped base 3;

[0047] A lifting frame 9 is slidably mounted on the mounting frame 8, and a disc cutting assembly is rotatably mounted on the lifting frame 9;

[0048] The abutment wheel 10 is installed on the lifting frame 9 and is close to the plate surface of the differential thickness plate 7 to be sheared;

[0049] A drive unit used to drive the disc cutting group to rotate and maintain adaptive lifting;

[0050] A transmission unit used for adaptively adjusting the rotational speed of the disc cutting group.

[0051] In this embodiment, during use, the drive unit drives the disc cutting assembly to rotate. When the equipment cuts the thick area of ​​the differential thickness plate 7 to be cut, the upper surface of the differential thickness plate 7 pushes the upper abutment wheel 10 and the lifting frame 9 upward by a small displacement, so as to drive the upper disc 4 to move upward synchronously. The lower surface of the differential thickness plate 7 to be cut pushes the lower abutment wheel 10 and the lifting frame 9 downward by a small displacement, so as to drive the lower disc 5 to move downward synchronously. This keeps the cutting spacing of the cutter 6 on the disc cutting assembly relatively stable. At the same time, through the transmission unit, the disc cutting assembly obtains a relatively low rotation speed when cutting the thick area. The rotation speed of the disc cutting assembly is reduced to meet the requirements of large cutting force and relatively low linear speed for cutting the thick area, ensuring thorough and stable cutting.

[0052] When the equipment shears the thin area of ​​the thick plate 7 to be sheared, the upper abutment wheel 10 moves downward by a small displacement on the upper surface of the thick plate 7 to drive the lifting frame 9 and the upper disc 4 to move downward synchronously. The lower abutment wheel 10 moves upward by a small displacement on the lower surface of the thick plate 7 to drive the lifting frame 9 and the lower disc 5 to move upward synchronously. This keeps the cutting spacing of the cutters 6 on the disc cutting assembly relatively stable. Through the transmission unit, the disc cutting assembly obtains a relatively high rotational speed when shearing the thin area, matching the higher linear speed required for shearing the thin plate and optimizing the shearing quality.

[0053] In this embodiment, as Figure 5 , Figure 6 As shown, the outer edges of the upper disc 4 and the lower disc 5 are evenly distributed with insertion holes. The insertion end of the cutter 6 is designed to prevent incorrect installation. The cutter 6 is detachably installed in the insertion hole by bolts. The evenly distributed insertion holes and the incorrect design make the installation of the cutter 6 quick and accurate, avoiding incorrect installation. The detachable installation by bolts allows for easy replacement of a single cutter 6 after wear or damage, without having to replace the entire expensive disc cutter. This greatly reduces consumable costs, shortens downtime for maintenance, and improves equipment utilization and production economy.

[0054] In this embodiment, as Figure 2 As shown, a straight rod 11 is provided at the upper end of the abutment wheel 10. The straight rod 11 is slidably mounted on the mounting frame 8, and the top of the straight rod 11 is fixedly mounted on the lifting frame 9. A spring 12 is sleeved on the straight rod 11. One end of the spring 12 abuts against the top of the abutment wheel 10, and the other end of the spring 12 abuts against the mounting frame 8. Guide rods 13 are also provided on both sides of the straight rod 11 on the lifting frame 9. The guide rods 13 are slidably mounted on the mounting frame 8. The spring 12 provides a constant and adjustable clamping force for the abutment wheel 10, ensuring that the abutment wheel 10 can closely follow the surface contour of the differential thickness plate 7 to be sheared, accurately sense the thickness change, and at the same time avoid scratching or over-pressure deformation of the plate surface. The guide rods 13 ensure the linearity and stability of the lifting movement of the lifting frame 9 and prevent jamming. The straight rod 11 directly transmits the floating of the abutment wheel 10 to the lifting frame 9, with a short transmission path and rapid response.

[0055] In this embodiment, as Figure 1 , Figure 2 As shown, the lifting frame 9 is equipped with a jet head 14. The jet port of the jet head 14 faces the shearing direction of the abutment wheel 10 and the shearing point of the differential thickness plate 7 to be sheared. If the metal chips and dust generated by shearing accumulate at the abutment wheel 10 or the shearing area, it will affect the movement flexibility of the abutment wheel 10, contaminate the cut, and even accelerate the wear of the cutter. The jet head 14 blows in a directional manner, which can effectively remove these contaminants and keep the processing area clean, thereby ensuring the accuracy of thickness following and the stability of the shearing process, and reducing subsequent cleaning processes.

[0056] In this embodiment, as Figure 2 , Figure 4 As shown, the drive unit includes:

[0057] A drive motor 15 is mounted on the T-shaped base 3;

[0058] U-shaped rotating arm 16 is located at the output end of drive motor 15;

[0059] A cross guide frame 17 is slidably mounted on a U-shaped rotating arm 16;

[0060] A U-shaped rotating arm 18 is slidably mounted on the cross guide frame 17;

[0061] A rotating shaft 19 is provided on the U-shaped rotating arm 18, and the rotating shaft 19 passes through the lifting frame 9;

[0062] Rotary shaft 20 is mounted on lifting frame 9. Gear sets are provided on rotating shaft 19 and rotating shaft 20, and a disc cutting set is provided on rotating shaft 20.

[0063] Specifically, the output end of the drive motor 15 drives the U-shaped rotating arm 16 to rotate, and the cross guide frame 17 drives the U-shaped rotating arm 18 and the rotating shaft 19 to rotate synchronously. Due to the transmission effect of the cross guide frame 17, the rotating shaft 19 is allowed to undergo a large displacement relative to the output end of the drive motor 15, while continuously and smoothly transmitting torque, thus realizing that the disc cutting group can rotate efficiently and rise and fall freely at the same time.

[0064] In this embodiment, as Figure 2 , Figure 4 , Figure 5As shown, the gear set includes gear 21 and gear 22 mounted on shaft 19, and gear 23 and gear 24 mounted on shaft 20. The diameter of gear 21 is larger than that of gear 22, and the diameter of gear 23 is larger than that of gear 24. When the disc cutting group cuts the large thickness area on the differential thickness plate 7 to be cut, gear 21 and gear 24 mesh. When the disc cutting group cuts the small thickness area on the differential thickness plate 7 to be cut, gear 22 and gear 23 mesh. When cutting the thin area, the gear set automatically switches to speed-up transmission to increase the linear speed to adapt to the shearing characteristics of thin material; when cutting the thick area, the gear set automatically switches to speed-down transmission to increase the torque to adapt to the force required for shearing thick material.

[0065] In this embodiment, as Figure 7 As shown, the transmission unit includes:

[0066] The base plate 25 is bolted to the lifting frame 9;

[0067] A connecting rod 26, one end of which is hinged to the base plate 25;

[0068] The slide bar 27 is mounted on the mounting bracket 8;

[0069] The slide plate 28 is slidably mounted on the slide rod 27, and the other end of the connecting rod 26 is hinged to the slide plate 28;

[0070] A telescopic rod 29 with one end attached to the slide plate 28;

[0071] A sliding block 30 is located at the other end of the telescopic rod 29, and gear 1 21 and gear 2 22 are placed on the sliding block 30;

[0072] Specifically, the linkage-slider mechanism, consisting of base plate 25, connecting rod 26, slide rod 27, slide plate 28, telescopic rod 29 and sliding block 30, amplifies and converts the linear displacement of the lifting frame 9 into the precise horizontal displacement of the sliding block 30. This ensures that the gear set can quickly and accurately enter or disengage when needed, avoiding problems such as gear grinding, noise or power interruption caused by improper gear shifting. It has a high degree of automation and reliable operation.

[0073] In this embodiment, as Figure 3 As shown, gear 1 21 and gear 2 22 are slidably mounted on shaft 1 19 via a sleeve. The sleeve is rotatably mounted on sliding block 30. Through the sleeve's limiting sliding, they can both rotate with shaft 1 19 to transmit power and slide axially under the drive of sliding block 30 to achieve gear shifting.

[0074] In this embodiment, as Figure 5 , Figure 6As shown, both the upper disk 4 and the lower disk 5 are hollow structures, which significantly reduces the weight of the upper disk 4 and the lower disk 5 without affecting the structural strength, reduces the rotational inertia of the equipment, and facilitates rapid start-up and shutdown and energy saving. The gap between the two adjacent cutters 6 of the upper disk 4 and the lower disk 5 is set, which is conducive to air circulation and chip discharge, promotes heat dissipation during the shearing process, and prevents the performance of the disk cutting group and the cutter 6 from deteriorating or being damaged due to overheating, further improving the continuous working capacity and reliability of the equipment.

[0075] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention includes the claims being limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0076] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A finishing equipment for rolled differential thickness plates with periodic variable cross-sectional thickness, comprising a conveyor belt (2) mounted on a machine tool base (1), and two sets of T-shaped seats (3) disposed opposite each other on both sides of the machine tool base (1), wherein each set of T-shaped seats (3) is provided with a disc cutting assembly, characterized in that, The disc cutting assembly includes an upper disc (4) and a lower disc (5) that cooperate with each other. Cutting blades (6) are evenly distributed around the outer edges of the upper disc (4) and the lower disc (5). The thick plate (7) to be sheared is placed between the cutting blades (6) of the upper disc (4) and the lower disc (5). The finishing equipment also includes: Mounting bracket (8) provided on the T-shaped base (3); A lifting frame (9) is slidably mounted on the mounting frame (8), and the disc cutting assembly is rotatably mounted on the lifting frame (9); An abutment wheel (10) is provided on the lifting frame (9), and the abutment wheel (10) is close to the plate surface of the differential thickness plate (7) to be sheared; A drive unit for driving the disc cutting assembly to rotate and maintaining adaptive lifting; A transmission unit for adaptively adjusting the rotational speed of the disc cutting group; The drive unit includes: A drive motor (15) is mounted on the T-shaped base (3); A U-shaped rotating arm (16) is provided at the output end of the drive motor (15). A cross guide frame (17) is slidably mounted on the U-shaped rotating arm (16). U-shaped rotating arm 2 (18) is slidably mounted on the cross guide frame (17). A rotating shaft (19) is provided on the second U-shaped rotating arm (18), and the rotating shaft (19) passes through the lifting frame (9). Rotary shaft two (20) is mounted on the lifting frame (9). Gear sets are provided on the rotating shaft one (19) and rotating shaft two (20). The disc cutting set is mounted on the rotating shaft two (20). The gear set includes gear one (21) and gear two (22) mounted on the first rotating shaft (19), and gear three (23) and gear four (24) mounted on the second rotating shaft (20). The transmission unit includes: The base plate (25) is bolted to the lifting frame (9); A connecting rod (26) with one end hinged to the base plate (25); A slide bar (27) is provided on the mounting bracket (8); The slide plate (28) is slidably mounted on the slide rod (27), and the other end of the connecting rod (26) is hinged to the slide plate (28); A telescopic rod (29) with one end attached to the slide plate (28); A sliding block (30) is provided at the other end of the telescopic rod (29), and the gear one (21) and gear two (22) are placed on the sliding block (30).

2. The finishing equipment for rolling differential thickness plates with periodic variable cross-section thickness according to claim 1, characterized in that, The upper disk (4) and the lower disk (5) have circumferentially distributed insertion holes on their outer edges. The insertion end of the cutter (6) is designed to prevent mistaken insertion. The cutter (6) is detachably installed in the insertion hole by means of bolts.

3. The finishing equipment for rolled differential thickness plates with periodic variable cross-section thickness according to claim 1, characterized in that, The upper end of the abutment wheel (10) is provided with a straight rod (11), the straight rod (11) is slidably mounted on the mounting frame (8), the top of the straight rod (11) is fixedly mounted on the lifting frame (9), a spring (12) is sleeved on the straight rod (11), one end of the spring (12) abuts against the top of the abutment wheel (10), and the other end of the spring (12) abuts against the mounting frame (8). The lifting frame (9) is also provided with guide rods (13) on both sides of the straight rod (11), and the guide rods (13) are slidably mounted on the mounting frame (8).

4. The finishing equipment for rolling differential thickness plates with periodic variable cross-sectional thickness according to claim 1, characterized in that, The lifting frame (9) is equipped with a jet head (14), and the jet port of the jet head (14) is directed toward the shearing point of the abutment wheel (10) and the differential thickness plate (7) to be sheared.

5. The finishing equipment for rolling differential thickness plates with periodic variable cross-section thickness according to claim 1, characterized in that, The diameter of gear one (21) is greater than that of gear two (22), and the diameter of gear three (23) is greater than that of gear four (24). When the disc cutting group cuts the large thickness area on the differential thickness plate (7) to be cut, gear one (21) meshes with gear four (24). When the disc cutting group cuts the small thickness area on the differential thickness plate (7) to be cut, gear two (22) meshes with gear three (23).

6. The finishing equipment for rolling differential thickness plates with periodic variable cross-section thickness according to claim 1, characterized in that, The first gear (21) and the second gear (22) are slidably mounted on the first rotating shaft (19) by means of a sleeve, and the sleeve is rotatably mounted on the sliding block (30).

7. The finishing equipment for rolling differential thickness plates with periodic variable cross-section thickness according to claim 1, characterized in that, Both the upper disk (4) and the lower disk (5) are hollow structures, and there is a gap between the two adjacent cutters (6) of the upper disk (4) and the lower disk (5).

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