Bending equipment

Abstract

The invention belongs to the technical field of bending machines, and particularly relates to bending equipment which comprises a rack, a driving device, an upper mounting plate, an upper die mechanism, a lower mounting plate and a lower die mechanism, the upper die mechanism comprises an upper die, the upper die is arranged at the lower end of the upper mounting plate in a sliding mode, the upper die is provided with a first shaping part, and the front end of the first shaping part is provided with a first inclined face; the reset assembly is mounted at the lower end of the upper mounting plate and is connected with the upper mold; the lower die mechanism is provided with a second shaping part and a guide part. The rear end of the second shaping part is provided with a second inclined face corresponding to the first inclined face. When the upper die mechanism moves in the direction close to the lower die mechanism, the guiding part abuts against the rear end of the upper die, the first shaping part is guided to be close to the second shaping part, and the first inclined face of the first shaping part and the second inclined face of the second shaping part can bend materials by the angle larger than 90 degrees under guiding of the guiding part. Therefore, the set standard that the material can be bent by 90 degrees after being rebounded is achieved, and the product quality is guaranteed.

Description

Technical Field

[0001] The present technical solution relates to the technical field of bending machines, and particularly refers to a bending device. Background Art

[0002] A bending device is a machine used for bending metal materials. It is equipped with a bending die and applies pressure to the bending die to bend the metal material placed in the bending die into a specific shape.

[0003] The bending dies of existing bending devices generally adopt a right-angle design, so as to be able to bend the edge of the metal material into 90 degrees. However, due to the springback characteristics of the metal material, during the bending process, stress changes will occur inside the metal. When the external force is removed, the metal material will rebound due to the recovery of elastic deformation. This results in the angle of the folded edge of the metal material after being bent by the right-angle die often being greater than the preset 90 degrees, making it difficult to meet the requirement of angle accuracy and affecting the product quality and performance. Summary of the Invention

[0004] The purpose of the present technical solution is to provide a bending device. By setting an inclined surface one on the upper die, under the guidance of the guiding part, the inclined surface one and the inclined surface two perform a bending operation on the material on the shaping part two, so that the bending angle of the material is greater than 90 degrees, improving the problem that when a bending die with a right-angle design bends a metal material, the bending angle does not meet the preset standard due to the springback characteristics of the metal.

[0005] The purpose of the present technical solution is achieved as follows:

[0006] A bending device includes: a frame; a driving device installed on the frame; an upper mounting plate installed on the driving end of the driving device; an upper die mechanism installed at the lower end of the upper mounting plate; a lower mounting plate installed on the frame and located below the upper mounting plate; and a lower die mechanism installed at the upper end of the lower mounting plate for cooperating with the upper die mechanism to perform a bending operation on the material. Among them, the upper die mechanism includes: an upper die slidably arranged at the lower end of the upper mounting plate, and the upper die is provided with a shaping part one, and an inclined surface one is arranged at the front end of the shaping part one; and a reset assembly installed at the lower end of the upper mounting plate and connected to the upper die for driving the upper die to reset to the initial position. The lower die mechanism is provided with a shaping part two and a guiding part, and an inclined surface two corresponding to the inclined surface one is arranged at the rear end of the shaping part two. When the upper die mechanism moves towards the direction close to the lower die mechanism, the guiding part abuts against the rear end of the upper die, guiding the shaping part one to approach the shaping part two, so that the inclined surface one cooperates with the inclined surface two to perform a bending operation on the material on the shaping part two.

[0007] Preferably, the angle α between the second inclined surface and the upper end surface of the second shaping part is less than 90 degrees.

[0008] Preferably, a first guiding surface is provided at the front end of the guiding part, and the first guiding surface is inclined towards the upper end direction of the guiding part; a second guiding surface is provided at the rear end of the upper die, and the second guiding surface cooperates with the first guiding surface to guide the upper die to move on the guiding part, so that the first inclined surface moves towards the direction close to the second inclined surface.

[0009] Preferably, the reset assembly includes: at least one connecting rod, which is slidably arranged on the upper mounting plate, and one end of the connecting rod is connected to the upper die, and the other end has an anti - detachment part; and a reset elastic member, which is sleeved on the corresponding connecting rod, and both ends of the reset elastic member respectively abut against the anti - detachment part and the upper mounting plate, and is used to drive the upper die to reset to the initial position.

[0010] Preferably, the lower die mechanism includes: a lower die, which is mounted on the lower mounting plate, and the second shaping part is arranged on the lower die; and a guiding seat, which is integrally formed or separately arranged at the rear end of the lower die and is located above the lower mounting plate, and the guiding part is arranged on the guiding seat.

[0011] Preferably, the lower die mechanism further includes: at least one limiting block, which is mounted on the upper end of the lower mounting plate;

[0012] At least one limiting groove corresponding to the limiting block is provided at the rear end of the guiding seat, and the limiting block is inserted into the limiting groove and abuts against the side wall of the limiting groove.

[0013] Preferably, at least one guide rod is mounted at the lower end of the upper mounting plate, and a guiding hole is provided on the guiding seat; when the upper mounting plate moves towards the lower mounting plate, the lower end of the guide rod is inserted into the corresponding guiding hole.

[0014] Preferably, a blank - holding mechanism is provided on the upper mounting plate, and the blank - holding mechanism includes: a blank - holding part, which is slidably arranged at the lower end of the upper mounting plate and is located above the second shaping part, and is used to press the material tightly on the upper end of the second shaping part; a guiding connecting part, which is slidably arranged on the upper mounting plate, and the lower end of the guiding connecting part extends out of the lower end of the upper mounting plate and is connected to the blank - holding part; a blank - holding elastic member, whose two ends are respectively connected to the upper mounting plate and the blank - holding part, so that the blank - holding part has a tendency to move away from the upper mounting plate.

[0015] Preferably, the blank - holding mechanism further includes: a limiting baffle, which is mounted at the lower end of the upper mounting plate, and the limiting baffle abuts against the front end of the blank - holding part to limit the movement of the blank - holding part.

[0016] Preferably, the pressure member is provided with a limiting member; when the pressure member moves towards the direction close to the second shaping portion, the limiting member abuts against the material located at the front end of the second shaping portion to limit the movement of the material.

[0017] The prominent and beneficial technical effects of this technical solution compared with the prior art are:

[0018] 1. This technical solution realizes the bending of the material through the cooperation of the first shaping portion provided on the upper mold and the second shaping portion of the lower mold mechanism, and under the guidance of the guiding portion, the inclined surface one of the first shaping portion and the inclined surface two of the second shaping portion can bend the material at an angle greater than 90 degrees, so that the material can reach the set standard of bending 90 degrees after springback, ensuring the product quality and performance.

[0019] 2. This technical solution realizes the bending and shaping of the material by the inclined surface one and the inclined surface two through the cooperation of the guiding surface one provided on the guiding portion and the guiding surface two provided on the first shaping portion, ensuring the stability of the bending and shaping operation of the first shaping portion and the second shaping portion on the material. At the same time, the reset assembly drives the connecting rod to move through the reset elastic member to drive the upper mold to reset, ensuring the stability of the upward reset of the first shaping portion.

[0020] 3. This technical solution designs the pressure member of the pressure mechanism to ensure that the material can be stably placed on the second shaping portion, ensuring that the material will not move during the bending operation and ensuring the bending quality.

[0021] 4. This technical solution designs the pressure elastic member to be connected with the pressure member, thus ensuring that the force of the pressure member pressing against the material will not be too large to damage the material. At the same time, when pressing materials with different thicknesses, the pressure elastic member ensures that the pressure applied by the pressure member can press the material tightly, avoiding the problem that the material displacement during the bending operation leads to the bending quality not meeting the standard. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the first embodiment.

[0023] Figure 2 It is a schematic structural diagram of the first embodiment after the material is placed.

[0024] Figure 3 It is a schematic structural diagram of the upper mold mechanism and the pressure mechanism of the first embodiment.

[0025] Figure 4 It is a schematic structural diagram of the pressure mechanism when the upper mold mechanism and the limit baffle of the first embodiment are not installed.

[0026] Figure 5 It is a schematic structural diagram of the lower mold mechanism of the first embodiment.

[0027] Figure 6 It is a cross-sectional view of the first embodiment.

[0028] Figure 7 It is a cross-sectional view when the upper die mechanism of the first embodiment bends the material.

[0029] Figure 8 It is a cross-sectional view after the upper die mechanism of the first embodiment bends the material.

[0030] Figure 9 It is a cross-sectional view when the material is bent in the first embodiment and the upper die mechanism returns to the initial position.

[0031] Figure 10 It is a side view of the lower die in the first embodiment.

[0032] Reference numerals: 1. Upper mounting plate; 11. Guide sleeve; 12. Sliding seat; 13. Sliding block; 14. Sliding groove; 15. Guide rod; 16. Guide groove; 161. Through hole

[0033] 2. Upper die mechanism

[0034] 3. Lower mounting plate; 31. Guide post; 311. Boss; 32. Sleeve; 33. Anti-disengagement part; 34. Sleeve spring; 35. Limit block

[0035] 4. Lower die mechanism; 41. Lower die; 411. Second shaping part; 412. Second inclined surface; 413. Arc surface; 414. Support part; 415. Avoidance space; 42. Guide seat; 421. Guide part; 422. First guide surface; 423. Guide hole; 424. Limit groove

[0036] 5. Upper die; 51. First shaping part; 511. First inclined surface; 512. Second guide surface; 513. Avoidance groove; 514. Slide block

[0037] 6. Reset assembly; 61. Connecting rod; 611. Anti-disengagement part; 62. Reset elastic part

[0038] 7. Blank holding mechanism; 71. Blank holding part; 72. Blank holding elastic part; 73. Limit part; 74. Guide connecting part; 741. Anti-disengagement protrusion; 75. Limit baffle

[0039] 100. Material Detailed implementation manners

[0040] The following further elaborates on the detailed implementation manners of the technical solution in conjunction with the drawings. See Figures 1 - 10 .

[0041] First embodiment:

[0042] In conjunction with Figures 1 - 5, A bending device, comprising: a frame, a driving device, an upper mounting plate 1, an upper die mechanism 2, a lower mounting plate 3 and a lower die mechanism 4; the driving device is mounted on the frame, the upper mounting plate 1 is connected to the driving end of the driving device, and the driving device is a hydraulic cylinder or a linear cylinder or a linear motor or an electric push rod, and the upper mounting plate 1 is driven to move by the driving device so as to approach or move away from the lower mounting plate 3; the upper die mechanism 2 is mounted at the lower end of the upper mounting plate 1; the lower mounting plate 3 is mounted on the frame of the bending device and is arranged below the upper mounting plate 1; the lower die mechanism 4 is mounted at the upper end of the lower mounting plate 3, and when the upper die mechanism 2 approaches the lower die mechanism 4, bending operation is performed on the material 100 placed on the lower die mechanism 4, and the material 100 is a metal sheet.

[0043] The upper die mechanism 2 includes an upper die 5 and a reset assembly 6. The upper die 5 is slidably arranged at the lower end of the upper mounting plate 1, and the lower end of the upper die 5 has a first shaping part 51. The front end of the first shaping part 51 has an inclined surface 511, and the inclined surface 511 is inclined in a direction away from the lower end surface of the upper die 5; the reset assembly 6 is mounted at the lower end of the upper mounting plate 1 and is connected to the upper die 5 for driving the upper die 5 to reset to the initial position, that is, for driving the upper die 5 to move to the set position; the lower die mechanism 4 is provided with a second shaping part 411 and a guiding part 421, and the rear end of the second shaping part 411 is provided with an inclined surface 412 corresponding to the inclined surface 511; the material 100 is bent and shaped by the first shaping part 51 and the second shaping part 411 respectively abutting against both sides of the material 100, that is, the edge of the material 100 is abutted against the inclined surface 412 by the inclined surface 511 for bending and shaping.

[0044] Combined Figures 6 - 9 , During operation, first place the material 100 on the upper end of the second shaping part 411, and make the edge of the material 100 extend out of the upper end of the second shaping part 411 and be placed below the first shaping part 51. At this time, when the upper die mechanism 2 moves towards the lower die mechanism 4, the front side of the lower end of the first shaping part 51 abuts against the upper end of the edge of the material 100, causing the material 100 to be bent around the second shaping part 411. As the upper die mechanism 2 further moves downward, the guiding part 421 abuts against the rear end of the upper die 5, causing the upper die 5 to move on the upper mounting plate 1 against the acting force of the reset assembly 6, so that the guiding part 421 guides the first shaping part 51 to approach the second shaping part 411, and the inclined surface 511 and the inclined surface 412 respectively abut against both sides of the material 100, thereby realizing the bending operation on the material 100 on the second shaping part 411.

[0045] Such as Figure 10As shown, the angle α between the plane where the inclined surface two 412 is located and the upper end surface of the shaping part two 411 is less than 90 degrees and greater than or equal to 75 degrees. The angle of the angle α is preferably 82 degrees, so that the angle after the edge of the material 100 is bent is less than 90 degrees, so as to realize that the angle after the edge of the material 100 rebounds is 90 degrees. The angle of the angle α is adjusted according to the material of the material 100, that is, the angle of the angle α is adjusted according to the different springback characteristics of the material 100, so that the bent material 100 reaches 90 degrees after springback, meeting the production standard. When processing different types of materials 100, it is necessary to set the corresponding inclination angle (angle α) according to the springback coefficient of the material 100. For materials with a larger springback coefficient after bending, the angle of the angle α is smaller.

[0046] Combined Figure 3 with Figure 4 , sliding blocks 13 are arranged on both sides of the lower end of the upper mounting plate 1. A sliding groove 14 is formed between the sliding block 13 and the lower end of the upper mounting plate 1. Both ends of the upper mold 5 have sliders 514, and the sliders 514 are slidably arranged in the sliding groove 14, so as to realize that the upper mold 5 is slidably arranged at the lower end of the upper mounting plate 1.

[0047] As Figure 9 shown, the inclined surface two 412 and the upper end surface of the shaping part two 411 are transitioned through an arc surface 413. The bending part of the material 100 is located at the upper end of the arc surface 413. The arc surface 413 can reduce stress concentration, make the stress distribution more uniform, avoid excessive stress concentration at a certain point, so as to reduce the risk of defects such as cracks and fractures in the material 100. At the same time, the arc surface 413 can reduce the sharp friction and extrusion between the material 100 and the lower die mechanism 4, make the damage to the surface of the material smaller, so as to improve the surface quality of the material after bending, and can also reduce the wear of the shaping part two 411.

[0048] Combined Figures 6 - 9 , a first guiding surface 422 is arranged at the front end of the guiding part 421, and the first guiding surface 422 is inclined towards the upper end direction close to the guiding part 421; a second guiding surface 512 is arranged at the lower half of the rear end of the upper mold 5, and the second guiding surface 512 cooperates with the first guiding surface 422. When the lower end of the upper mold 5 abuts against the guiding part 421, the second guiding surface 512 and the first guiding surface 422 can be mutually attached and slide, so as to guide the upper mold 5 to move on the guiding part 421, make the shaping part one 51 close to the shaping part two 411, and make the inclined surface one 511 move towards the direction close to the inclined surface two 412, so as to realize the shaping of the material 100.

[0049] The middle part of the front end of the guiding part 421 is the first guiding surface 422, and the upper part and the lower part of the front end of the guiding part 421 are vertical surfaces, that is, the front ends of the upper and lower parts of the first guiding surface 422 of the guiding part 421 are vertical planes.

[0050] Combined with Figures 6 - 9 , the reset assembly 6 includes: at least one set of connecting rods 61 and a reset elastic member 62. A sliding seat 12 is provided at the lower end of the upper mounting plate 1. The connecting rod 61 is slidably disposed on the sliding seat 12 of the upper mounting plate 1, and one end of the connecting rod 61 extends out of the sliding seat 12 and is threadedly connected or clamped or inserted and fixed to the upper mold 5. The other end of the connecting rod 61 has an anti-disengagement portion 611; the reset elastic member 62 is a spring or a disc spring. The reset elastic member 62 is sleeved on the connecting rod 61, and both ends of the reset elastic member 62 respectively abut against the anti-disengagement portion 611 and the sliding seat 12 of the upper mounting plate 1, so that the anti-disengagement portion 611 has a tendency to move in a direction away from the rear end of the sliding seat 12, thereby driving the upper mold 5 to reset to the initial position, so that the front end of the sliding seat 12 abuts against the rear end of the upper mold 5, that is, the rearward movement reset of the upper mold 5 is realized; when the guiding portion 421 guides the upper mold 5, that is, when guiding the shaping portion one 51 close to the shaping portion two 411, it is necessary to overcome the elastic force of the reset elastic member 62, and when the upper mold 5 moves upward and away from the lower die mechanism 4 for demolding the material 100, the reset elastic member 62 drives the upper mold 5 to move rearward, thereby avoiding the abutment of the inclined surface one 511 and the inclined surface two 412 and preventing the upward movement of the upper mold 5, ensuring the stability of the reset of the upper mold 5; at the same time, when demolding the material 100, the reset elastic member 62 of the reset assembly 6 can reduce the force of the inclined surface one 511 pressing against the inclined surface two 412, thereby avoiding scratching the surface of the material 100 at the lower front end of the shaping portion one 51, and also avoiding scratching the surface of the inclined surface two 412 by the edge end of the material 100.

[0051] When multiple sets of connecting rods 61 and reset elastic members 62 are provided, several connecting rods 61 are arranged and distributed along the length direction of the sliding seat 12 and are connected to the upper mold 5. In this design solution, one connecting rod 61 is connected to both the rear ends of the upper mold 5.

[0052] When the reset elastic member 62 drives the upper mold 5 to reset to the initial position, that is, when the upper mold 5 is reset, the front end of the sliding seat 12 abuts against the rear end of the upper mold 5, realizing the limitation of the movement range of the upper mold 5.

[0053] Such as Figure 6 , the sliding seat 12 is located above the guiding seat 42. The direction in which the upper mold 5 moves toward the lower mold 41 is the mold closing direction (in this embodiment, taking Figure 6 as an example, the downward movement direction of the upper mold 5 is the mold closing direction); the point closest to the lower end of the upper mold 5 on the guiding surface two 512 is point A, that is, Figure 6 the lowest end of the guiding surface two 512 in Figure 6The uppermost end of the middle guiding surface two 512 is point B, and the point on the guiding surface one 422 that is farthest from the upper end of the guiding seat 42 is point C, that is Figure 6 The lowermost end of the middle guiding surface one 422 is point C, and the point on the guiding surface one 422 that is closest to the upper end of the guiding seat 42 is point D, that is Figure 6 The uppermost end of the middle guiding surface one 422 is point D; when the upper die 5 is in the initial position, the projection of point A on the plane perpendicular to the die - closing direction (that is, on the plane perpendicular to the die - closing direction, the position where point A projects onto this plane, and the projection positions of the subsequent described points B, C, and D are the positions projected onto this plane) is located in front of the projection of point D on the plane perpendicular to the die - closing direction, and the projection of point B on the plane perpendicular to the die - closing direction is located behind the projection of point C on the plane perpendicular to the die - closing direction. Thus, when the upper die 5 and the lower die 41 are being closed, that is, when the upper die 5 moves towards the lower die 41, point A can slide on the guiding surface one 422, enabling the guiding surface two 512 to slide on the guiding surface one 422, avoiding the problem that the lower end of the upper die 5 abuts against the upper end of the guiding seat 42, resulting in the guiding surface two 512 being unable to slide on the guiding surface one 422, and avoiding interference between the lower end of the upper die 5 and the upper end of the guiding seat 42. At the same time, it ensures that the guiding surface two 512 can smoothly slide on the guiding surface one 422, thereby ensuring that the guiding and shaping part one 51 can move closer to the shaping part two 411; in this design scheme, when the upper die 5 is in the initial position, the projection of point A on the plane perpendicular to the die - closing direction is located behind the projection of point C on the plane perpendicular to the die - closing direction.

[0054] Combined with Figures 3 - 5 and Figure 8 , at least one guide rod 15 is installed at the lower end of the upper mounting plate 1. The lower end of the guide rod 15 extends out of the lower end of the sliding seat 12. A guide hole 423 is provided on the guiding seat 42. When the upper mounting plate 1 moves towards the lower mounting plate 3, the guide rod 15 is inserted into the corresponding guide hole 423 to achieve the guiding function and ensure the accurate and stable movement of the upper mounting plate 1.

[0055] Combined with Figures 5 - 9 , the lower die mechanism 4 includes: a lower die 41 and a guiding seat 42. Both the lower die 41 and the guiding seat 42 are installed at the upper end of the lower mounting plate 3, and the guiding seat 42 is located at the rear end of the lower die 41. The lower die 41 and the guiding seat 42 are integrally formed or separately designed. The front half of the upper end of the lower die 41 protrudes to form a shaping part two 411, and the guiding seat 42 is provided with a guiding part 421, and the guiding part 421 is located behind the shaping part two 411.

[0056] Combined with Figures 5 - 7, the lower die mechanism 4 further includes: at least one limit block 35, which is installed at the upper end of the lower mounting plate 3. At least one limit groove 424 corresponding to the limit block 35 is provided at the rear end of the guide seat 42. The front end of the limit block 35 is inserted into the limit groove 424 and abuts against the side wall of the limit groove 424, so as to prevent the guide seat 42 from moving at the upper end of the lower mounting plate 3, thereby ensuring the stability of the installation of the guide seat 42.

[0057] In order to ensure the stability of the placement of the material 100 on the upper end of the second upper shaping part 411, a material pressing mechanism 7 is provided at the lower end of the upper mounting plate 1. The material pressing mechanism 7 is located above the second shaping part 411. The material pressing mechanism 7 includes: a material pressing member 71, which is movably arranged at the lower end of the upper mounting plate 1 and is located above the second shaping part 411. The material pressing member 71 can move up and down at the lower end of the upper mounting plate 1, and is used to press against the upper end of the material 100 and press the lower end of the material 100 against the upper end of the second shaping part 411, so as to prevent the material 100 from moving up and down on the second shaping part 411, avoid the movement of the material during the bending operation, ensure the quality of the bent product, and there is no need to manually press the material 100 against the upper end of the second shaping part 411, saving manpower and improving safety and accuracy.

[0058] Combined Figures 6 - 9 , the material pressing mechanism 7 further includes: a material pressing elastic member 72, which is a spring or a rubber member or a silica gel member. The two ends of the material pressing elastic member 72 are respectively connected to the upper mounting plate 1 and the material pressing member 71; when the material pressing member 71 presses against the material 100 on the second shaping part 411, the material pressing elastic member 72 undergoes elastic deformation and contracts, so as to ensure that the force of the material pressing member 71 pressing against the material 100 will not be too large to damage the material 100. At the same time, when pressing materials 100 with different thicknesses, the material pressing elastic member 72 can ensure that the pressure applied by the material pressing member 71 can press the material 100 tightly, ensuring the accurate stability of the pressure.

[0059] The material pressing mechanism 7 further includes: a guiding connecting member 74, which is a bolt or a pin. It slidably passes through the upper mounting plate 1, and the lower end of the guiding connecting member 74 extends out of the lower end of the upper mounting plate 1 and is threadedly connected or plugged or adhesively connected or interference-fitted with the material pressing member 71; when the guiding connecting member 74 is adopted, the material pressing elastic member 72 makes the material pressing member 71 tend to move in a direction away from the upper mounting plate 1; a guiding groove 16 is provided in the upper mounting plate 1, a through hole 161 is provided at the bottom of the guiding groove 16, a anti-detachment protrusion 741 is provided at the upper end of the guiding connecting member 74, the guiding connecting member 74 is slidably arranged in the guiding groove 16, and the lower end of the guiding connecting member 74 extends out of the guiding groove 16 through the through hole 161 and is connected to the material pressing member 71, and the material pressing member 71 is slidably arranged at the lower end of the upper mounting plate 1 through the guiding connecting member 74.

[0060] The blank holding mechanism 7 further includes: a limit baffle 75, which is installed at the lower end of the upper mounting plate 1, and the limit baffle 75 abuts against the front end of the blank holder 71 for restricting the forward and backward movement of the blank holder 71.

[0061] A limit member 73 is provided on the front side of the lower end of the blank holder 71; when the blank holder 71 moves towards the direction close to the second shaping part 411, the rear end of the limit member 73 presses against the material 100 located at the front end of the second shaping part 411, so that the material 100 can be attached to the front end of the second shaping part 411, realizing the restriction of the forward and backward movement of the material 100 on the second shaping part 411, avoiding the change of the bent area due to the movement of the material when the first shaping part 51 presses down the material 100, and ensuring the quality of the material after bending.

[0062] A support part 414 is provided on the second shaping part 411, and the upper end of the support part 414 and the lower end of the blank holder 71 perform upper and lower direction limiting and fixing on the material 100, and the front end of the support part 414 and the rear end of the limit member 73 perform front and rear direction limiting and fixing on the material 100.

[0063] When the rear end of the limit member 73 presses against the material 100 located at the front end of the second shaping part 411, the limit baffle 75 abuts against the front end of the limit member 73 for restricting the movement of the limit member 73, ensuring the force of the limit member 73 pressing against the material 100, and thus ensuring the stability of pressing the material.

[0064] Such as Figure 8 , the upper mounting plate 1 is provided with at least one guide sleeve 11, and the lower mounting plate 3 is provided with at least one guide post 31 corresponding to the guide sleeve 11; when the upper mounting plate 1 moves towards the direction close to the lower mounting plate 3, the guide post 31 slides into the guide sleeve 11 for positioning the positions of the upper mounting plate 1 and the lower mounting plate 3 and ensuring the accuracy of the movement of the upper mounting plate 1; or, a sliding sleeve 32 is sleeved on the upper end of the guide post 31, and an anti - detachment member 33 is connected to the upper end of the guide post 31, and the anti - detachment member 33 abuts against the upper end of the sliding sleeve 32 for restricting the sliding sleeve 32 from detaching from the upper end of the guide post 31. A sliding sleeve spring 34 is sleeved on the guide post 31, the upper end of the sliding sleeve spring 34 abuts against the lower end of the sliding sleeve 32, and the lower end of the sliding sleeve spring 34 abuts against the upper end of the lower mounting plate 3 or a boss 311 on the side wall of the lower end of the guide post 31, so that the sliding sleeve 32 has a movement tendency away from the lower end of the guide post 31.

[0065] An avoidance groove 513 is provided at the front half of the lower end of the first shaping part 51. The side wall of the avoidance groove 513 is inclined towards its notch. The avoidance groove 513 is used to avoid the edge warping of the material 100. When the material 100 is produced, there will be edge warping after cutting, so it is necessary to avoid it through the avoidance groove 513, so that the lower front side of the first shaping part 51 first abuts against the material 100 and cooperates with the upper rear end of the second shaping part 411 to realize the bending of the material 100. Since when the lower end of the first shaping part 51 is a plane, the lower end of the first shaping part 51 will directly press on the edge warping of the material 100, which will cause deviation in the bending position of the material 100 and affect the bending effect. Therefore, the avoidance groove 513 needs to be designed.

[0066] The front end of the lower mold 41 and the front end of the second shaping part 411 protrude from the front end of the lower mounting plate 3, and an avoidance space 415 is formed at the front end of the lower mold 41 and the front end of the second shaping part 411 for avoiding the material 100, facilitating the rotation or movement of the material 100, so as to facilitate the removal of the bent and shaped material 100 from the upper end of the second shaping part 411 to realize the demoulding and blanking operation.

[0067] The specific working process of this solution is as follows: As Figure 6 , first place the material 100 on the upper end of the second shaping part 411, and make the edge of the material 100 extend out of the upper end of the second shaping part 411 and be placed below the first shaping part 51. Then, by moving the upper die mechanism 2 towards the lower die mechanism 4, that is, when the upper die 5 of the upper die mechanism 2 approaches the lower die 41 for die closing, the lower front side of the first shaping part 51 abuts against the upper edge of the edge of the material 100, and the edge warping of the material 100 is placed in the avoidance groove 513;

[0068] As Figure 7 , when the upper die 5 further moves along the die closing direction for die closing, the pressure elastic member 72 makes the pressure member 71 press the material 100 against the upper end of the supporting part 414 through elastic deformation, and the limiting member 73 presses the material 100 against the front end of the supporting part 414. The first shaping part 51 makes the part of the material 100 extending out of the second shaping part 411 be preliminarily bent around the second shaping part 411;

[0069] As Figure 8, after the upper mold 5 further moves downward for mold closing, the guiding portion 421 abuts against the rear end of the upper mold 5, causing the second guiding surface 512 to slide on the first guiding surface 422. As a result, the upper mold 5 moves on the upper mounting plate 1 against the acting force of the reset assembly 6, and the first shaping portion 51 approaches the second shaping portion 411. Furthermore, the first inclined surface 511 and the second inclined surface 412 respectively abut against both sides of the material 100, thereby realizing the bending operation on the material 100 on the second shaping portion 411, that is, causing the material 100 to fit on the second shaping portion 411 and realizing the bending and shaping of the material 100. A reserved space is left between the lower end of the upper mold 5 and the upper end of the lower mold 41, so as to be able to adapt to bending materials 100 with different edge lengths.

[0070] As Figure 9 , after the bending operation is completed, the upper mounting plate 1 moves in a direction away from the lower mounting plate 3, that is, moves in the reverse direction of the mold closing direction for resetting, causing the upper mold mechanism 2 and the material pressing mechanism 7 to move upward. The upper mold 5 is reset to its initial position under the action of the reset assembly. After the material 100 loses the pressure applied by the first shaping portion 51, it rebounds to 90 degrees through the elastic rebound characteristic of the material itself.

[0071] Embodiment 2:

[0072] The design scheme of this embodiment is basically the same as that of Embodiment 1, and the difference lies in:

[0073] Sliding blocks 13 are no longer provided on both sides of the lower end of the upper mounting plate 1, and sliders 514 are no longer provided at both ends of the upper mold 5. The upper mold 5 is slidably arranged at the lower end of the upper mounting plate 1 by sliding the connecting rod 61 on the sliding seat 12.

[0074] Embodiment 3:

[0075] The design scheme of this embodiment is basically the same as that of Embodiment 1, and the difference lies in:

[0076] There is no need to set up a guiding connecting piece 74. The material pressing piece 71 is movably connected to the lower end of the upper mounting plate 1 through a material pressing elastic piece 72. Through the elastic deformation of the material pressing elastic piece 72, the position adjustment of the material pressing piece 71 at the lower end of the upper mounting plate 1 can be realized, so as to adapt to the pressing operation on materials with different thicknesses on the second shaping portion 411, ensure that the material is pressed on the second shaping portion 411, and at the same time ensure the stability of the rear end of the limiting piece 73 pressing against the material 100 at the front end of the second shaping portion 411.

[0077] The basic principles, main features and advantages of the present technical solution have been shown and described above. Those skilled in the art should understand that the present technical solution is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present technical solution. Without departing from the spirit and scope of the present technical solution, the present technical solution will have various changes and improvements, and these changes and improvements all fall within the scope of the present technical solution claimed. The scope of protection required by the present technical solution is defined by the appended claims and their equivalents.

[0078] It should be noted that the structures, ratios, sizes, etc. depicted in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present technical solution can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present technical solution can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present technical solution. At the same time, the terms such as "upper", "lower", "front", "rear" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope in which the present technical solution can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope in which the present technical solution can be implemented.

Claims

1. A bending device, characterized in that, Comprising: A frame; A driving device, which is installed on the frame; An upper mounting plate (1), which is installed on the driving end of the driving device; An upper die mechanism (2), which is installed at the lower end of the upper mounting plate (1); A lower mounting plate (3), which is installed on the frame and is located below the upper mounting plate (1); and A lower die mechanism (4), which is installed at the upper end of the lower mounting plate (3) and is used to cooperate with the upper die mechanism (2) to bend a material (100); Wherein, the upper die mechanism (2) comprises: An upper die (5), which is slidably arranged at the lower end of the upper mounting plate (1), and a first shaping portion (51) is arranged on the upper die (5), and a first inclined surface (511) is arranged at the front end of the first shaping portion (51); and A reset assembly (6), which is installed at the lower end of the upper mounting plate (1) and is connected to the upper die (5) for driving the upper die (5) to reset to the initial position; The lower die mechanism (4) is provided with a second shaping portion (411) and a guiding portion (421), and a second inclined surface (412) corresponding to the first inclined surface (511) is arranged at the rear end of the second shaping portion (411); When the upper die mechanism (2) moves towards the direction close to the lower die mechanism (4), the guiding portion (421) abuts against the rear end of the upper die (5) to guide the first shaping portion (51) close to the second shaping portion (411), so that the first inclined surface (511) cooperates with the second inclined surface (412) to bend the material (100) on the second shaping portion (411).

2. The bending device according to claim 1, characterized in that: The included angle α between the second inclined surface (412) and the upper end surface of the second shaping portion (411) is less than 90 degrees.

3. The bending device according to claim 1, characterized in that: A first guiding surface (422) is arranged at the front end of the guiding portion (421), and the first guiding surface (422) is inclined towards the upper end direction close to the guiding portion (421); A second guiding surface (512) is arranged at the rear end of the upper die (5), and the second guiding surface (512) cooperates with the first guiding surface (422) to guide the upper die (5) to move on the guiding portion (421), so that the first inclined surface (511) moves towards the direction close to the second inclined surface (412).

4. The bending device according to claim 1, characterized in that: The reset assembly (6) comprises: At least one connecting rod (61), which is slidably arranged on the upper mounting plate (1), and one end of the connecting rod (61) is connected to the upper die (5), and the other end has an anti - detachment portion (611); and A reset elastic member (62), which is sleeved on the corresponding connecting rod (61), and both ends of the reset elastic member (62) respectively abut against the anti - detachment portion (611) and the upper mounting plate (1) for driving the upper die (5) to reset to the initial position.

5. The bending device according to claim 1, characterized in that: The lower die mechanism (4) includes: A lower die (41) which is installed on the lower mounting plate (3), and a second shaping part (411) is provided on the lower die (41); and A guide seat (42) which is integrally formed or separately provided at the rear end of the lower die (41) and is located at the upper end of the lower mounting plate (3), and a guiding part (421) is provided on the guide seat (42).

6. A bending device according to claim 5, wherein: The lower die mechanism (4) further includes: at least one limiting block (35) which is installed at the upper end of the lower mounting plate (3); At least one limiting groove (424) corresponding to the limiting block (35) is provided at the rear end of the guide seat (42), and the limiting block (35) is inserted into the limiting groove (424) and abuts against the side wall of the limiting groove (424).

7. A bending device according to claim 5, wherein: At least one guide rod (15) is installed at the lower end of the upper mounting plate (1), and a guide hole (423) is provided on the guide seat (42); When the upper mounting plate (1) moves towards the lower mounting plate (3), the lower end of the guide rod (15) is inserted into the corresponding guide hole (423).

8. A bending device according to any one of claims 1-7, wherein: The upper mounting plate (1) is provided with a blank pressing mechanism (7), and the blank pressing mechanism (7) includes: A blank pressing member (71) which is slidably provided at the lower end of the upper mounting plate (1) and is located above the second shaping part (411) for pressing the material (100) against the upper end of the second shaping part (411); A guiding connecting member (74) which is slidably provided on the upper mounting plate (1), and the lower end of the guiding connecting member (74) extends out of the lower end of the upper mounting plate (1) and is connected to the blank pressing member (71); A blank pressing elastic member (72) whose two ends are respectively connected to the upper mounting plate (1) and the blank pressing member (71), so that the blank pressing member (71) has a tendency to move away from the upper mounting plate (1).

9. A bending device according to claim 8, wherein: The blank pressing mechanism (7) further includes: a limiting baffle (75) which is installed at the lower end of the upper mounting plate (1), and the limiting baffle (75) abuts against the front end of the blank pressing member (71) for restricting the movement of the blank pressing member (71).

10. A bending device according to claim 8, wherein: The blank pressing member (71) is provided with a limiting member (73); When the blank pressing member (71) moves towards the second shaping part (411), the limiting member (73) abuts against the material (100) at the front end of the second shaping part (411) for restricting the movement of the material (100).

Images