A curling device for processing stainless steel products

Abstract

The present invention discloses a hemming device for processing stainless steel products, belonging to the technical field of hemming equipment; it includes a base, and a transposition mechanism, a support mechanism, and a hemming mechanism are arranged on the base. The stainless steel product to be hemmed is placed on the transposition mechanism, and the transposition mechanism drives the stainless steel product to rotate to complete hemming at different positions of the stainless steel product. The support mechanism includes an elastic support plate, and both sides of the elastic support plate are respectively connected to the clamping arms. When hemming the stainless steel product, the elastic support plate is used to support the outer ring of the stainless steel product. The hemming mechanism includes a hemming head, and the hemming head is used to hem the stainless steel product. The present invention automatically completes the hemming of stainless steel products with different diameters through the transposition mechanism, the support mechanism, and the hemming mechanism, with a simple structure and convenient operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of hemming equipment, and particularly relates to a hemming device for processing stainless steel products. Background Art

[0002] Stainless steel products are widely used in fields such as construction, manufacturing, and medical equipment. The edge treatment has an important impact on the appearance quality and safety of the products. Generally, stainless steel products with relatively sharp edges need to be hemmed. In the traditional processing of stainless steel products, manual operation is usually required for edge hemming, and the process is complex and easily affected by human factors.

[0003] The patent with the publication number CN219945231U discloses a hemming device for processing stainless steel products, including a workbench. A tray is arranged on the top of the workbench. Circular hemming plates are arranged on both sides of the tray. A fixed base is arranged at one end of the top of the workbench. A second fixed bracket is arranged on the top of the fixed base. A sliding groove is formed on the surface of the second fixed bracket. A limiting arm is connected inside the sliding groove. One end of the limiting arm is connected with a fixed disc. Although this patent can complete the hemming of stainless steel products, it can only hem stainless steel products with a fixed diameter and cannot be adjusted adaptively according to different diameter sizes, which requires a large amount of manpower and material resources. In view of the above problems, the present invention provides a hemming device for processing stainless steel products. Summary of the Invention

[0004] In view of the above technical problems, the technical solution adopted by the present invention is: a hemming device for processing stainless steel products, including a base. A commutation mechanism, a support mechanism, and a hemming mechanism are arranged on the base.

[0005] The stainless steel product to be hemmed is placed on the commutation mechanism, and the commutation mechanism drives the stainless steel product to rotate to complete hemming at different positions of the stainless steel product.

[0006] The support mechanism includes an elastic support plate. The two sides of the elastic support plate are respectively connected with clamping arms. When hemming the stainless steel product, the elastic support plate is used to support the outer ring of the stainless steel product.

[0007] The hemming mechanism includes a hemming head, and the hemming head is used to hem the stainless steel product.

[0008] Further, the commutation mechanism includes a fixed disk, which is rotatably installed on the base. The fixed disk is fixedly connected to one end of the commutation cylinder, and the other end of the commutation cylinder is fixedly connected to the central gear. On both sides of the central gear, there are arranged a first rack and a second rack. On both the first rack and the second rack, there are provided a first telescopic rod. The two first telescopic rods are respectively connected to two guiding slide rails arranged on the base. One end of a sliding rod is connected to both the first rack and the second rack. The other ends of the two sliding rods are slidably matched with the central rod. One end of a push rod is rotatably connected to the central rod, and the other end of the push rod is rotatably installed on the disk, and the disk is connected to the power source.

[0009] Specifically, the power source is a double-shaft motor. Output shafts are arranged at both ends of the double-shaft motor. The output shaft below the double-shaft motor is fixedly connected to the disk, and the double-shaft motor is fixedly installed on the base.

[0010] Further, the guiding slide rail includes a first guiding part, and two second guiding parts are respectively arranged at both ends of the first guiding part.

[0011] Further, a plurality of clamping plates arranged in a circumferential manner are provided on the fixed disk. The clamping plates are slidably matched with the fixed disk, and a first reset spring is arranged between the clamping plates and the fixed disk. When curling the stainless steel product, the clamping plates are used to fix the stainless steel product.

[0012] Further, the support mechanism further includes a sliding block, which is slidably installed on the fixed seat. The intersection of the ends of the two clamping arms far from the elastic support plate is coaxially connected to the sliding block. A pointer is installed on the sliding block, and a scale is arranged below the pointer. The scale is fixedly installed on the fixed seat, and the sliding block is fixedly connected to the extending end of a cylinder fixedly installed on the fixed seat.

[0013] Further, the support mechanism further includes a support plate. Distance measuring sensors are respectively fixedly installed on both sides of the support plate. Two symmetrically arranged connecting blocks are slidably installed on the support plate. A second reset spring is arranged between the connecting blocks and the support plate. One end of a second telescopic rod is connected to each connecting block, and the other end of the second telescopic rod is connected to the elastic support plate. The connection part of the second telescopic rod and the elastic support plate is directly below the connection part of the clamping arm and the elastic support plate.

[0014] Specifically, both the second telescopic rod and the first telescopic rod are composed of two parts that are slidably matched with each other, and a telescopic spring is arranged between the two parts to assist the two parts that are slidably matched with each other to reset through the telescopic spring. This belongs to the prior art and can be thought of and implemented by those skilled in the art.

[0015] Furthermore, the support mechanism further includes a second cylindrical gear, which is rotatably installed on the base. The second cylindrical gear is fixedly connected to the fixed seat and meshes with the first cylindrical gear. The first cylindrical gear is rotatably installed on the base, and the first cylindrical gear is connected to the power source through a belt assembly.

[0016] Specifically, the belt assembly includes two belt pulleys and a belt. The two belt pulleys are connected by the belt, and the two belt pulleys are respectively installed on the output shaft of the double-shaft motor and the shaft where the first cylindrical gear is located.

[0017] Furthermore, the curling mechanism further includes an electric cylinder, which is fixedly installed on the fourth cylindrical gear. The extending end of the electric cylinder is fixedly connected to the curling head. The fourth cylindrical gear is rotatably installed on the base and meshes with the third cylindrical gear. The third cylindrical gear is connected to the first cylindrical gear through a vertical shaft.

[0018] The beneficial effects of the present invention compared with the prior art are as follows: (1) The present invention automatically completes the curling of stainless steel products with different diameters through the transposition mechanism, the support mechanism, and the curling mechanism, with a simple structure and convenient operation; (2) When curling the stainless steel product, the present invention can automatically calculate the diameter of the stainless steel product by measuring the moving distance of the elastic support plate, and then adjust the moving distance of the curling head to complete the curling; (3) When curling the stainless steel product, the rotation of the stainless steel product can be controlled to reciprocate, so that the stress on the stainless steel product is more uniform and the curling effect is improved. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is Figure 1 A schematic diagram of the structure from another angle.

[0021] Figure 3 It is Figure 2 A partially enlarged schematic diagram of the structure at N1 in

[0022] Figure 4 It is a schematic diagram of a part of the structure of the present invention Figure 1 。

[0023] Figure 5 It is a schematic diagram of a part of the structure of the present invention Figure 2 。

[0024] Figure 6 It is a schematic diagram of a part of the structure of the present invention Figure 3 。

[0025] Figure 7 It is Figure 6 A partially enlarged schematic diagram of the structure at N2 in

[0026] Figure 8 Schematic diagram of part of the structure of the present invention Figure 4 。

[0027] Figure 9 It is a schematic diagram of the positional relationship between a stainless steel product and a clamping arm when the stainless steel product is fixed.

[0028] Figure 10 Schematic diagram of part of the structure of the present invention Figure 5 。

[0029] Figure 11 Schematic diagram of part of the structure of the present invention Figure 6 。

[0030] Description of the drawings: 1 - Base; 2 - Biaxial motor; 3 - Disc; 4 - Push rod; 5 - Central rod; 6 - Slide bar; 7 - First rack; 8 - First telescopic rod; 9 - Central gear; 10 - Transposition cylinder; 11 - Guide rail; 12 - First guiding part; 13 - Second guiding part; 14 - Fixed disc; 15 - Clamping plate; 16 - First return spring; 17 - Belt assembly; 18 - First cylindrical gear; 19 - Second cylindrical gear; 20 - Fixed seat; 21 - Cylinder; 22 - Pointer; 23 - Scale; 24 - Clamping arm; 25 - Elastic support plate; 26 - Support plate; 27 - Second return spring; 28 - Second telescopic rod; 29 - Distance measuring sensor; 30 - Third cylindrical gear; 31 - Fourth cylindrical gear; 32 - Electric cylinder; 33 - Hemming head; 34 - Stainless steel product; 35 - Second rack. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: As Figure 1 — Figure 11 shown, a hemming device for processing stainless steel products includes a base 1, and a transposition mechanism, a support mechanism, and a hemming mechanism are arranged on the base 1.

[0033] The stainless steel product 34 to be hemmed is placed on the transposition mechanism, and the transposition mechanism drives the stainless steel product 34 to rotate to complete hemming at different positions of the stainless steel product 34.

[0034] The commutation mechanism includes a fixed disk 14 which is rotatably installed on the base 1. The fixed disk 14 is fixedly connected to one end of the commutation cylinder 10, and the other end of the commutation cylinder 10 is fixedly connected to the central gear 9. On both sides of the central gear 9, there are arranged a first rack 7 and a second rack 35. On both the first rack 7 and the second rack 35, there are arranged a first telescopic rod 8. The two first telescopic rods 8 are respectively connected to two guiding slide rails 11 arranged on the base 1. One end of a sliding rod 6 is connected to both the first rack 7 and the second rack 35, and the other end of the two sliding rods 6 is in sliding fit with the central rod 5. One end of a push rod 4 is rotatably connected to the central rod 5, and the other end of the push rod 4 is rotatably installed on the disk 3. The disk 3 is connected to the power source.

[0035] Specifically, the power source is a double-shaft motor 2. Output shafts are arranged at both ends of the double-shaft motor 2. The output shaft below the double-shaft motor 2 is fixedly connected to the disk 3, and the double-shaft motor 2 is fixedly installed on the base 1.

[0036] The guiding slide rail 11 includes a first guiding part 12, and two second guiding parts 13 are respectively arranged at both ends of the first guiding part 12.

[0037] On the fixed disk 14, there are arranged a plurality of clamping plates 15 which are arranged circumferentially. The clamping plates 15 are in sliding fit with the fixed disk 14, and a first return spring 16 is arranged between the clamping plates 15 and the fixed disk 14. When curling the stainless steel product 34, the clamping plates 15 are used to fix the stainless steel product 34.

[0038] The supporting mechanism includes an elastic supporting plate 25. The two sides of the elastic supporting plate 25 are respectively connected to the clamping arms 24. When curling the stainless steel product 34, the elastic supporting plate 25 is used to support the outer ring of the stainless steel product 34.

[0039] The supporting mechanism further includes a sliding block which is slidably installed on the fixed seat 20. The intersection of the two ends of the two clamping arms 24 far away from the elastic supporting plate 25 is coaxially connected to the sliding block. A pointer 22 is installed on the sliding block, and a scale 23 is arranged below the pointer 22. The scale 23 is fixedly installed on the fixed seat 20. The sliding block is fixedly connected to the extending end of a cylinder 21 fixedly installed on the fixed seat 20.

[0040] The supporting mechanism further includes a supporting plate 26. Distance measuring sensors 29 are respectively fixedly installed on both sides of the supporting plate 26. Two symmetrically arranged connecting blocks are slidably installed on the supporting plate 26. A second return spring 27 is arranged between the connecting blocks and the supporting plate 26. One end of a second telescopic rod 28 is connected to each connecting block, and the other end of the second telescopic rod 28 is connected to the elastic supporting plate 25. And the connection position of the second telescopic rod 28 and the elastic supporting plate 25 is directly below the connection position of the clamping arm 24 and the elastic supporting plate 25.

[0041] Specifically, telescopic rod 28 and telescopic rod 1 8 are both composed of two parts that slide together, and a telescopic spring is arranged between the two parts. The telescopic spring assists the two parts that slide together to reset. This belongs to the prior art and can be thought of and implemented by technical personnel in this field.

[0042] The supporting mechanism also includes a cylindrical gear 2 19, which is rotatably mounted on the base 1, and is fixedly connected to the fixed seat 20. The cylindrical gear 2 19 is meshed with the cylindrical gear 1 18, and the cylindrical gear 1 18 is rotatably mounted on the base 1. The cylindrical gear 1 18 is connected to the power source through the belt assembly 17.

[0043] Specifically, the belt assembly 17 includes two pulleys and a belt. The two pulleys are connected by the belt, and the two pulleys are respectively installed on the output shaft of the dual-axis motor 2 and the shaft where the cylindrical gear 18 is located.

[0044] The crimping mechanism includes a crimping head 33, which is used to crimp the stainless steel product 34. The crimping mechanism also includes an electric cylinder 32, which is fixedly mounted on a cylindrical gear 4 31, the extended end of which is fixedly connected to the crimping head 33, the cylindrical gear 4 31 is rotatably mounted on the base 1, the cylindrical gear 4 31 is meshed with the cylindrical gear 3 30, and the cylindrical gear 3 30 is connected to the cylindrical gear 1 18 through a vertical shaft.

[0045] Working principle: When curling a stainless steel product 34, first fix the stainless steel product 34 to be curled on the fixed disk 14. Specifically, push the multiple clamps 15 in the direction away from the central axis of the fixed disk 14 to make the clamps 15 slide along the fixed disk 14, so that the multiple clamps 15 gradually move away from the central axis of the fixed disk 14, and then place the stainless steel product 34 to be curled in the center of the fixed disk 14, release the clamps 15, and reset the clamps 15 under the elastic force of the reset spring 16, and finally make the clamps 15 clamp the stainless steel product 34. At the same time, the stainless steel product 34 can also be moved to the center of the fixed disk 14 in this process.

[0046] After the fixation of the stainless steel product 34 is completed, the air cylinder 21 is started, and the extending end of the air cylinder 21 pushes the sliding block and the pointer 22 on the sliding block to slide towards the side close to the stainless steel product 34. At this time, the connection points of the two clamping arms 24 on the sliding block will also move towards the side close to the stainless steel product 34, so that the elastic support plate 25 approaches the stainless steel product 34 and finally adheres to the stainless steel product 34. In this way, when curling the stainless steel product 34, the elastic support plate 25, the clamping arms 24, etc. can play a supporting role on the outer wall of the stainless steel product 34. In addition, during the process of the clamping arm 24 pushing the elastic support plate 25 to move, the second telescopic rod 28 connected to the elastic support plate 25 will also move. Since the second telescopic rod 28 is a telescopic structure, when the second telescopic rod 28 moves, the connecting block will also slide on the support plate 26, thus changing the distance between the two connecting blocks. This distance will be detected by the two distance measuring sensors 29, and the accurate distance will be obtained through the computer. During this process, the second return spring 27 will deform, and the function of the second return spring 27 is to assist the reset of the connecting block.

[0047] Since in the initial state, the distance from the pointer 22 to the center of the fixed disk 14 is determined, that is, the distance from the pointer 22 to the center of the fixed stainless steel product 34 is determined, and the distance that the pointer 22 moves on the scale 23 can also be determined by the pointer of the pointer 22 on the scale 23. Then, after the elastic support plate 25 finishes moving, the distance from the intersection of the two clamping arms 24 to the center of the stainless steel product 34 is determined. Taking the schematic diagram of the central gear 9 in the figure as an example, taking point A as the center of the stainless steel product 34 and point D as the position of the intersection of the two clamping arms 24, then the distance from point A to point D at this time is determined, denoted as AD; at the same time, taking point C and point B to represent the positions where the two second telescopic rods 28 are connected to the elastic support plate 25, since the distance between the two connecting blocks can be detected by the distance measuring sensor 29, and the distance between the two connecting blocks is equal to the distance between the connections of the two second telescopic rods 28 and the elastic support plate 25, that is, the distance between C and B, denoted as BC, and the distance CE from point C to point E is half of the distance between BC. Moreover, the end of the clamping arm 24 far from the pointer 22 always remains tangent to the stainless steel product 34, so the distance from point A to point C and the distance from point A to point B are the radii of the stainless steel product 34. Specifically: △ACD is a right triangle, △CED is a right triangle, and △ACD and △CED have a common ∠ADC, so △ACD and △CED are similar triangles. Therefore, according to the properties of similar triangles, we know that:

[0048] So:

[0049] After obtaining the distance of AC, the radius of the stainless steel product 34 can be known. Then, according to the requirements of curling, the distance between the curling head 33 and the center of the stainless steel product 34 can be adjusted. Specifically, start the electric cylinder 32, and the extending end of the electric cylinder 32 pushes the curling head 33 to move, so as to adjust the distance between the curling head 33 and the center of the stainless steel product 34, and start curling. The purpose of doing this is to be able to curl the stainless steel products 34 with different sizes flexibly, without the need for manual measurement of the diameter of the stainless steel product 34, reducing the process and improving the efficiency.

[0050] When curling, start the dual-axis motor 2 to make the two output shafts on the dual-axis motor 2 rotate. When the output shafts above and below the dual-axis motor 2 rotate, the disc 3 fixedly installed on the lower output shaft will rotate, and the disc 3 drives the push rod 4 to rotate, so that the center rod 5 makes a reciprocating linear movement. When the center rod 5 reciprocates, the sliding rod 6 slidably engaged with the center rod 5 will drive the rack one 7 and the rack two 35 to move. When the rack one 7 is at the first guiding part 12 on the guiding slide rail 11, the rack one 7 meshes with the center gear 9. At this time, the rack two 35 is at the second guiding part 13 of the other guiding slide rail 11, and the rack two 35 does not mesh with the center gear 9, that is, the center gear 9 can only mesh with one of the center gear 9 or the rack two 35 at the same time. The purpose of doing this is to enable the center gear 9 to always rotate alternately counterclockwise and clockwise. In this way, the commutation cylinder 10 fixedly connected to the center gear 9 will drive the fixed disc 14 and the stainless steel product 34 to rotate reciprocally, so that the curling is more uniform and the effect is better.

[0051] When the output shaft above the dual-axis motor 2 rotates, the output shaft drives the cylindrical gear one 18 to rotate through the belt assembly 17. When the cylindrical gear one 18 rotates, the cylindrical gear two 19 meshing with the cylindrical gear one 18 will rotate. In this way, the fixed seat 20 on the cylindrical gear two 19 will rotate. At the same time, when the cylindrical gear one 18 rotates, the cylindrical gear three 30 connected to the cylindrical gear one 18 through the vertical shaft will rotate in the same direction as the cylindrical gear one 18. In this way, the cylindrical gear four 31 meshing with the cylindrical gear three 30 will drive the curling head 33 to rotate. The rotation direction of the cylindrical gear four 31 is the same as the rotation direction of the cylindrical gear two 19. Therefore, the relative position between the curling head 33 and the elastic support plate 25 remains unchanged, so as to ensure that when curling a certain position on the stainless steel product 34, there is always an elastic support plate 25 for support. In this way, the electric cylinder 32 pushes the curling head 33 to curl the stainless steel product 34, and the elastic support plate 25 supports the outer wall of the stainless steel product 34. At the same time, through the reciprocating rotation of the stainless steel product 34, the curling position can be smoother, the force is more uniform, and the quality of curling is improved.

Claims

1. A curling device for processing stainless steel products, comprising a base (1), characterized in that: The base (1) is provided with a transposition mechanism, a support mechanism, and a curling mechanism; The stainless steel product (34) to be curled is placed on the transposition mechanism, and the stainless steel product (34) is driven to rotate by the transposition mechanism to complete curling at different positions of the stainless steel product (34); The shifting mechanism comprises a fixed plate (14), the fixed plate (14) being rotatably mounted on the base (1), the fixed plate (14) being fixedly connected to one end of a shifting cylinder (10), the other end of the shifting cylinder (10) being fixedly connected to a central gear (9), a rack 1 (7) and a rack 2 (35) being arranged on both sides of the central gear (9), a telescopic rod 1 (8) being arranged on each of the rack 1 (7) and the rack 2 (35), the two telescopic rods 1 (8) being respectively connected to two guide rails ( 11), the guide rail (11) comprises a first guide portion (12), and the two ends of the first guide portion (12) are respectively provided with a second guide portion (13); the rack one (7) and the rack two (35) are both connected to one end of a sliding rod (6), and the other ends of the two sliding rods (6) are slidably matched with the center rod (5), and the center rod (5) is rotatably connected to one end of a push rod (4), and the other end of the push rod (4) is rotatably mounted on a disc (3), and the disc (3) is connected to a power source; The fixing plate (14) is provided with a plurality of circumferentially arranged clamping plates (15), the clamping plates (15) and the fixing plate (14) are slidably matched, and a return spring (16) is provided between the clamping plates (15) and the fixing plate (14), and when the stainless steel product (34) is curled, the clamping plates (15) are used to fix the stainless steel product (34); The support mechanism comprises an elastic support plate (25), both sides of which are respectively connected to the clamping arms (24); when the stainless steel product (34) is curled, the elastic support plate (25) is used to support the outer ring of the stainless steel product (34); The curling mechanism comprises a curling head (33), and the curling head (33) is used to curl the stainless steel product (34); the curling mechanism also comprises an electric cylinder (32), and the electric cylinder (32) is fixedly mounted on a cylindrical gear four (31), and the protruding end of the electric cylinder (32) is fixedly connected to the curling head (33), and the cylindrical gear four (31) is rotatably mounted on the base (1), and the cylindrical gear four (31) is meshed with the cylindrical gear three (30), and the cylindrical gear three (30) is connected to the cylindrical gear one (18) through a vertical shaft.

2. A curling device for processing stainless steel products according to claim 1, characterized in that: The support mechanism further comprises a sliding block, the sliding block being slidably mounted on the fixed seat (20), the intersection of one end of the two clamping arms (24) away from the elastic support plate (25) being coaxially connected to the sliding block, a pointer (22) being mounted on the sliding block, a scale (23) being arranged below the pointer (22), the scale (23) being fixedly mounted on the fixed seat (20), and the sliding block being fixedly connected to the protruding end of a cylinder (21) fixedly mounted on the fixed seat (20).

3. A curling device for processing stainless steel products as claimed in claim 2, characterized in that: The support mechanism further comprises a support plate (26), and distance measuring sensors (29) are fixedly mounted on both sides of the support plate (26), and two symmetrically arranged connecting blocks are slidably mounted on the support plate (26), and a second return spring (27) is arranged between the connecting block and the support plate (26), and one end of a second telescopic rod (28) is connected to each of the connecting blocks, and the other end of the second telescopic rod (28) is connected to the elastic support plate (25), and the connection between the second telescopic rod (28) and the elastic support plate (25) is located directly below the connection between the clamping arm (24) and the elastic support plate (25).

4. A curling device for processing stainless steel products as claimed in claim 3, characterized in that: The support mechanism further comprises a cylindrical gear 2 (19), wherein the cylindrical gear 2 (19) is rotatably mounted on the base (1), the cylindrical gear 2 (19) is fixedly connected to the fixed seat (20), the cylindrical gear 2 (19) is meshed with the cylindrical gear 1 (18), the cylindrical gear 1 (18) is rotatably mounted on the base (1), and the cylindrical gear 1 (18) is connected to the power source via a belt assembly (17).

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