Bending equipment for precision forgings

Abstract

The invention provides bending equipment for precision forgings, and relates to the technical field of precision forgings bending. Two arc-shaped groove holes are formed in the mounting bracket; a precision forge piece bending unit is mounted on the mounting bracket; two groups of positioning units are mounted on the mounting bracket; a straightening unit is mounted on the mounting bracket, and the straightening unit is positioned above the precision forge piece bending unit; a control unit is mounted on the mounting bracket; when the rectangular straightening plate moves forwards or backwards under the action of friction force, a precision forging raw material can be driven to rotate, the precision forging raw material can be automatically straightened when rotating, and the precision of a formed precision forging is higher; the problems that the precision of the formed precision forge piece is reduced due to the fact that the precision forge piece cannot be straightened before being bent due to the fact that the cut precision forge piece is usually directly bent and slightly bent by workers is difficult to find are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of precision forging bending, and more specifically, particularly relates to a bending device for precision forgings. Background Art

[0002] Precision forgings are usually processed by die forging, adopting a new forging process with less or no cutting machining, thus replacing the traditional forging method; bending can make the forgings form specific geometric shapes to meet the requirements of complex product structures, such as curved pipes, arc-shaped brackets, etc.

[0003] The currently used precision forging bending devices still have the following problems: 1. The precision forgings after truncation are usually directly subjected to bending processing, and it is impossible to assist in straightening the precision forgings before bending. When the precision forgings after truncation have slight bending, it is not easy for workers to detect, resulting in a reduction in the accuracy of the formed precision forgings; 2. Although some precision forging bending devices are equipped with positioning structures, during bending processing, the positioning structures cannot move, affecting the bending effect of the precision forgings; 3. Before bending, the hands of workers cannot be completely moved to the safe area, resulting in the precision forging bending device being prone to accidentally injuring the hands of workers. Summary of the Invention

[0004] The embodiments of the present disclosure relate to a bending device for precision forgings, which has a precision forging bending unit, a positioning unit, a straightening unit, and a control unit; when the rectangular straightening plate moves forward or backward under the action of friction, it can drive the precision forging raw material to rotate. When the precision forging raw material rotates, it can be automatically straightened, making the precision forgings have higher accuracy after forming; when the precision forging raw material is bent, both ends of the precision forging raw material can push two positioning plates to move outward, without affecting the normal forming of the precision forging raw material; a worker needs to pull out the rectangular storage plate with one hand through the U-shaped handle, and press the control button A or control button B with the other hand, avoiding accidental injury to the worker by the device.

[0005] In the first aspect of the present disclosure, a bending device for precision forgings is provided, specifically including a mounting bracket; two arc-shaped slot holes are provided on the mounting bracket; a precision forging raw material to be bent is placed on the top of the mounting bracket; a precision forging bending unit is installed on the mounting bracket; two groups of positioning units are installed on the mounting bracket, and the two groups of positioning units are used to position the precision forging raw material to be bent; A straightening unit is installed on the mounting bracket, and the straightening unit is located above the precision forging bending unit. The straightening unit is used to straighten the precision forging raw material to be bent; a control unit is installed on the mounting bracket, and the control unit is used to control the precision forging bending unit and the straightening unit.

[0006] In at least some embodiments, the precision forging bending unit includes: a bending positioning block, a connecting plate, a rotating bending block, and an arc-shaped pushing frame; there are two bending positioning blocks in total, and the two bending positioning blocks are rotatably installed on the mounting bracket; there are two connecting plates in total, and the two connecting plates are welded to the outside of the two bending positioning blocks, and the tops of the two connecting plates are in contact with the mounting bracket; there are two rotating bending blocks in total, and the two rotating bending blocks are welded inside the two connecting plates, and the two rotating bending blocks are located in two arc-shaped slot holes; there are two arc-shaped pushing frames in total, and the two arc-shaped pushing frames are welded to the two connecting plates, and receiving grooves are respectively formed at the tops of the two arc-shaped pushing frames.

[0007] In at least some embodiments, the precision forging bending unit further includes: a gear A, a motor, and a gear B; there are two gear As in total, and the two gear As are welded to the outside of the two bending positioning blocks; the motor is fixedly installed on the mounting bracket; the gear B is welded to the output shaft of the motor, and the gear B is also meshed with the two gear As.

[0008] In at least some embodiments, the positioning unit includes: a circular movable rod, an octagonal rod, and a positioning flat plate; the circular movable rod is slidably installed on the mounting bracket, and the bottom of the circular movable rod is provided with a rounded corner, and the bottom of the circular movable rod is inserted into the receiving groove; the octagonal rod is slidably installed inside the circular movable rod, and the octagonal rod is also slidably connected to the mounting bracket; the positioning flat plate is welded to the inner end of the octagonal rod, and the inner side of the positioning flat plate is in contact with the precision forging raw material.

[0009] In at least some embodiments, the positioning unit further includes: a limit retaining ring A and a return spring A; the limit retaining ring A is welded to the outside of the octagonal rod, and the inner side of the limit retaining ring A is in contact with the circular movable rod; the return spring A is installed on the outside of the octagonal rod, and the return spring A is located between the circular movable rod and the positioning flat plate.

[0010] In at least some embodiments, the straightening unit includes: an electric cylinder, a lifting mounting plate, a straightening push block, and a circular guide rod; there are two electric cylinders in total, and the two electric cylinders are fixedly installed on the mounting bracket; the lifting mounting plate is fixedly installed on the output shafts of the two electric cylinders; the straightening push block is welded to the lifting mounting plate; there are two circular guide rods in total, and the two circular guide rods are welded to the lifting mounting plate.

[0011] In at least some embodiments, the straightening unit further includes: a movable connection block, a return spring B, a circular guide shaft, and a rectangular straightening plate; there are two movable connection blocks in total, and the two movable connection blocks are slidably mounted on the outer sides of the two circular guide rods; there are two return springs B in total, and the two return springs B are mounted on the outer sides of the two circular guide rods; there are two circular guide shafts in total, and the two circular guide shafts are slidably mounted on the two movable connection blocks; the rectangular straightening plate is welded to the bottoms of the two circular guide shafts, and the bottom of the rectangular straightening plate is knurled.

[0012] In at least some embodiments, the straightening unit further includes: a limit retaining ring B, a return spring C, a rectangular mounting block, and a straightening protrusion; there are two limit retaining rings B in total, and the two limit retaining rings B are welded to the tops of the two circular guide shafts, and the bottoms of the two limit retaining rings B are in contact with the two movable connection blocks; there are two return springs C in total, and the two return springs C are mounted on the outer sides of the two circular guide shafts, and the two return springs C are located between the two movable connection blocks and the rectangular straightening plate; the rectangular mounting block is welded to the top of the rectangular straightening plate, and the rear side of the rectangular mounting block is tangent to the straightening push block; there are two straightening protrusions in total, and the two straightening protrusions are welded to the rear side of the rectangular mounting block, and the two straightening protrusions and the straightening push block are located in the same central plane.

[0013] In at least some embodiments, the control unit includes: a rectangular storage plate, a control button A, a control button B, and a U-shaped handle; the rectangular storage plate is slidably mounted inside the mounting bracket; the control button A is fixedly mounted inside the rectangular storage plate, and the control button A is used to control the motor; the control button B is fixedly mounted inside the rectangular storage plate, and the control button B is used to control the two electric cylinders; the U-shaped handle is welded to the front side of the rectangular storage plate.

[0014] In at least some embodiments, the control unit further includes: a circular return shaft, a limit retaining ring C, and a return spring D; there are two circular return shafts in total, and the two circular return shafts are welded to the rear side of the rectangular storage plate, and the two circular return shafts are also slidably connected to the mounting bracket; there are two limit retaining rings C in total, and the two limit retaining rings C are welded to the rear ends of the two circular return shafts; there are two return springs D in total, and the two return springs D are mounted on the outer sides of the two circular return shafts, and the two return springs D are located between the mounting bracket and the two limit retaining rings C.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the output shafts of the two electric cylinders extend, the lifting mounting plate drives the rectangular straightening plate to move downward, ensuring elastic contact between the rectangular straightening plate and the raw material of the precision forging, providing a blocking and protective effect on the raw material of the precision forging, and improving the safety during the bending of the raw material of the precision forging. In addition, when the straightening push block contacts the straightening protrusion, the rectangular straightening plate moves forward under the action of the straightening push block and the straightening protrusion. When the straightening push block separates from the straightening protrusion, the rectangular straightening plate automatically resets backward under the action of the two return springs B. When the rectangular straightening plate moves forward or backward under the action of friction, it can drive the raw material of the precision forging to rotate. When the raw material of the precision forging rotates, it can be automatically straightened, making the precision forging have higher accuracy after forming.

[0016] 2. The present invention plays a positioning role for the raw material of the precision forging, making the precision forging more consistent after forming. When the raw material of the precision forging is bent, the two ends of the raw material of the precision forging can push the two positioning flat plates to move outward, without affecting the normal forming of the raw material of the precision forging while achieving the positioning effect. In addition, when the raw material of the precision forging is bent, the two circular movable rods automatically separate from the two receiving grooves. When the two circular movable rods separate from the two receiving grooves, the two circular movable rods can push the rectangular straightening plate upward, creating a slight gap between the bottom of the rectangular straightening plate and the raw material of the precision forging, without affecting the normal forming of the raw material of the precision forging while achieving the straightening effect.

[0017] 3. The present invention facilitates the staff to control the motor and the two electric cylinders. When the control button A is pressed, the motor rotates forward. When the control button A is pressed again, the motor rotates backward and resets. When the control button B is pressed, the output shafts of the two electric cylinders extend. When the control button B is pressed again, the output shafts of the two electric cylinders contract and reset. In addition, when the staff presses the control button A or the control button B, the staff needs to pull out the rectangular storage plate through the U-shaped handle with one hand and press the control button A or the control button B with the other hand, ensuring that when the control button A or the control button B is pressed, the staff's hands are in a safe area, avoiding accidental injury to the staff by the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0020] In the drawings: Figure 1 is the three-dimensional structure schematic diagram of the present invention; Figure 2 is the present inventionFigure 1 Structural schematic diagram of the rear bottom view Figure 3 Structural schematic diagram of the precision forging bending unit of the present invention Figure 4 of the present invention Figure 3 Structural schematic diagram of the bottom view Figure 5 of the present invention Figure 1 Partial enlarged structural schematic diagram of area A in the present invention Figure 6 of the present invention Figure 1 Central cross-sectional structural schematic diagram Figure 7 of the present invention Figure 6 Partial enlarged structural schematic diagram of area B in the present invention Figure 8 Structural schematic diagram of the straightening unit of the present invention Figure 9 of the present invention Figure 8 Central cross-sectional structural schematic diagram Figure 10 Structural schematic diagram of the control unit of the present invention

[0021] List of reference numerals 1. Mounting bracket; 101. Arc-shaped slot hole 2. Precision forging bending unit; 201. Bending positioning block; 202. Connecting plate; 203. Rotary bending block; 204. Arc-shaped push frame; 2041. Receiving groove; 205. Gear A; 206. Motor; 207. Gear B 3. Precision forging raw material 4. Positioning unit; 401. Circular movable rod; 402. Octagonal rod; 403. Positioning plate; 404. Limit retaining ring A; 405. Return spring A 5. Straightening unit; 501. Electric cylinder; 502. Lifting mounting plate; 503. Straightening push block; 504. Circular guide rod; 505. Movable connecting block; 506. Return spring B; 507. Circular guide shaft; 508. Rectangular straightening plate; 509. Limit retaining ring B; 510. Return spring C; 511. Rectangular mounting block; 512. Straightening protrusion 6. Control unit; 601. Rectangular receiving plate; 602. Control button A; 603. Control button B; 604. U-shaped handle; 605. Circular return shaft; 606. Limit retaining ring C; 607. Return spring D Detailed implementation manners

[0022] In order to make the objectives, solutions, and advantages of the technical solution of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0023] Embodiment: Please refer to Figures 1 to 10 As shown in the figure: The present invention provides a bending device for precision forgings, including a mounting bracket 1; two arc-shaped slot holes 101 are provided on the mounting bracket 1; a precision forging raw material 3 to be bent is placed on the top of the mounting bracket 1; a precision forging bending unit 2 is installed on the mounting bracket 1; two positioning units 4 are installed on the mounting bracket 1, and the two positioning units 4 are used to position the precision forging raw material 3 to be bent; A straightening unit 5 is installed on the mounting bracket 1, and the straightening unit 5 is located above the precision forging bending unit 2. The straightening unit 5 is used to straighten the precision forging raw material 3 to be bent; a control unit 6 is installed on the mounting bracket 1, and the control unit 6 is used to control the precision forging bending unit 2 and the straightening unit 5.

[0024] In the embodiments of the present disclosure, as Figure 3 and Figure 4 shown, the precision forging bending unit 2 includes: bending positioning blocks 201, connecting plates 202, rotary bending blocks 203, and arc-shaped push frames 204; there are two bending positioning blocks 201 in total, and the two bending positioning blocks 201 are rotatably installed on the mounting bracket 1; there are two connecting plates 202 in total, and the two connecting plates 202 are welded to the outside of the two bending positioning blocks 201, and the tops of the two connecting plates 202 are in contact with the mounting bracket 1; there are two rotary bending blocks 203 in total, and the two rotary bending blocks 203 are welded to the inside of the two connecting plates 202, and the two rotary bending blocks 203 are located in the two arc-shaped slot holes 101; there are two arc-shaped push frames 204 in total, and the two arc-shaped push frames 204 are welded to the two connecting plates 202, and receiving grooves 2041 are respectively provided at the tops of the two arc-shaped push frames 204; the precision forging bending unit 2 further includes: gears A 205, a motor 206, and gears B 207; there are two gears A 205 in total, and the two gears A 205 are welded to the outside of the two bending positioning blocks 201; the motor 206 is fixedly installed on the mounting bracket 1; the gear B 207 is welded to the output shaft of the motor 206, and the gear B 207 is also meshed with the two gears A 205; Its specific function is as follows: Since the two gears A205 are welded to the outside of the two bending positioning blocks 201, the gear B207 is welded to the output shaft of the motor 206, and the gear B207 is also meshed with the two gears A205. When the motor 206 works, the two rotary bending blocks 203 rotate simultaneously, bending the precision forging raw material 3 and realizing the automatic forming of the precision forging.

[0025] In the embodiment of the present disclosure, as Figure 8 and Figure 9 shown, the straightening unit 5 includes: an electric cylinder 501, a lifting mounting plate 502, a straightening push block 503, and a circular guide rod 504; there are two electric cylinders 501 in total, and the two electric cylinders 501 are fixedly mounted on the mounting bracket 1; the lifting mounting plate 502 is fixedly mounted on the output shafts of the two electric cylinders 501; the straightening push block 503 is welded to the lifting mounting plate 502; there are two circular guide rods 504 in total, and the two circular guide rods 504 are welded to the lifting mounting plate 502; the straightening unit 5 further includes: a movable connection block 505, a return spring B506, a circular guide shaft 507, and a rectangular straightening plate 508; there are two movable connection blocks 505 in total, and the two movable connection blocks 505 are slidably mounted on the outside of the two circular guide rods 504; there are two return springs B506 in total, and the two return springs B506 are mounted on the outside of the two circular guide rods 504; there are two circular guide shafts 507 in total, and the two circular guide shafts 507 are slidably mounted on the two movable connection blocks 505; the rectangular straightening plate 508 is welded to the bottoms of the two circular guide shafts 507, and the bottom of the rectangular straightening plate 508 is knurled; the straightening unit 5 further includes: a limit retaining ring B509, a return spring C510, a rectangular mounting block 511, and a straightening protrusion 512; there are two limit retaining rings B509 in total, and the two limit retaining rings B509 are welded to the tops of the two circular guide shafts 507, and the bottoms of the two limit retaining rings B509 are in contact with the two movable connection blocks 505; there are two return springs C510 in total, and the two return springs C510 are mounted on the outside of the two circular guide shafts 507, and the two return springs C510 are located between the two movable connection blocks 505 and the rectangular straightening plate 508; the rectangular mounting block 511 is welded to the top of the rectangular straightening plate 508, and the rear side of the rectangular mounting block 511 is tangent to the straightening push block 503; there are two straightening protrusions 512 in total, and the two straightening protrusions 512 are welded to the rear side of the rectangular mounting block 511, and the two straightening protrusions 512 and the straightening push block 503 are located in the same central plane; Its specific functions are as follows: Since the lifting mounting plate 502 is fixedly installed on the output shafts of the two electric cylinders 501, and the two circular guide shafts 507 are slidably installed on the two movable connection blocks 505, and the two return springs C510 are located between the two movable connection blocks 505 and the rectangular straightening plate 508. When the output shafts of the two electric cylinders 501 extend, the lifting mounting plate 502 drives the rectangular straightening plate 508 to move downward, ensuring elastic contact between the rectangular straightening plate 508 and the precision forging raw material 3, playing a role of blocking and protecting the precision forging raw material 3, and improving the safety during the bending of the precision forging raw material 3. Also, since the rear side of the rectangular mounting block 511 is tangent to the straightening push block 503, and the two straightening protrusions 512 are welded to the rear side of the rectangular mounting block 511, and the bottom of the rectangular straightening plate 508 is knurled. When the straightening push block 503 contacts the straightening protrusion 512, the rectangular straightening plate 508 moves forward under the action of the straightening push block 503 and the straightening protrusion 512. When the straightening push block 503 separates from the straightening protrusion 512, the rectangular straightening plate 508 automatically returns backward under the action of the two return springs B506. When the rectangular straightening plate 508 moves forward or backward under the action of friction, it can drive the precision forging raw material 3 to rotate. When the precision forging raw material 3 rotates, it can be automatically straightened, making the precision forging have higher precision after forming; Among them, after the rectangular straightening plate 508 contacts the precision forging raw material 3, when the output shafts of the two electric cylinders 501 continue to extend, the rectangular straightening plate 508 will stop moving under the supporting action of the precision forging raw material 3, while the two electric cylinders 501 will still drive the lifting mounting plate 502 to move downward; at this time, the rectangular mounting block 511 will move under the action of the straightening push block 503 and the straightening protrusion 512 (because the straightening push block 503 and the straightening protrusion 512 are arc-shaped structures), thereby realizing the forward and backward movement of the rectangular straightening plate 508; when the precision forging raw material 3 rotates, the slightly bent part and the non-bent part will slowly become concentric, thereby realizing automatic straightening; In addition, the friction between the rectangular straightening plate 508 and the precision forging raw material 3 can be appropriately adjusted through the two return springs C510 until the elastic force of the two return springs C510 meets the requirement for the rectangular straightening plate 508 to straighten the precision forging raw material 3.

[0026] In the embodiments of the present disclosure, as Figure 5 and Figure 7As shown in the figure, the positioning unit 4 includes: a circular movable rod 401, an octagonal rod 402, and a positioning flat plate 403; the circular movable rod 401 is slidably mounted on the mounting bracket 1, and the bottom of the circular movable rod 401 is provided with a rounded corner, and the bottom of the circular movable rod 401 is inserted into the receiving groove 2041; the octagonal rod 402 is slidably mounted inside the circular movable rod 401, and the octagonal rod 402 is also slidably connected to the mounting bracket 1; the positioning flat plate 403 is welded to the inner end of the octagonal rod 402, and the inner side of the positioning flat plate 403 contacts the precision forging raw material 3; the positioning unit 4 further includes: a limit retaining ring A404 and a return spring A405; the limit retaining ring A404 is welded to the outside of the octagonal rod 402, and the inner side of the limit retaining ring A404 contacts the circular movable rod 401; the return spring A405 is mounted on the outside of the octagonal rod 402, and the return spring A405 is located between the circular movable rod 401 and the positioning flat plate 403; Its specific function is as follows: Since the two positioning flat plates 403 are welded to the inner ends of the two octagonal rods 402, and the inner sides of the two positioning flat plates 403 contact the precision forging raw material 3, and the two return springs A405 are located between the two circular movable rods 401 and the two positioning flat plates 403, it plays a positioning role for the precision forging raw material 3, making the precision forgings more consistent after forming. When the precision forging raw material 3 is bent, the two ends of the precision forging raw material 3 can push the two positioning flat plates 403 to move outwards, without affecting the normal forming of the precision forging raw material 3 while achieving the positioning effect; also, since the two circular movable rods 401 are slidably mounted on the mounting bracket 1, and the bottoms of the two circular movable rods 401 are provided with rounded corners, and the bottoms of the two circular movable rods 401 are inserted into the two receiving grooves 2041, when the precision forging raw material 3 is bent, the two circular movable rods 401 are automatically separated from the two receiving grooves 2041. When the two circular movable rods 401 are separated from the two receiving grooves 2041, the two circular movable rods 401 can push the rectangular straightening plate 508 upwards, creating a slight gap between the bottom of the rectangular straightening plate 508 and the precision forging raw material 3, without affecting the normal forming of the precision forging raw material 3 while achieving the straightening effect.

[0027] In the embodiment of the present disclosure, as Figure 10As shown in the figure, the control unit 6 includes: a rectangular storage board 601, a control button A 602, a control button B 603, and a U-shaped handle 604; the rectangular storage board 601 is slidably installed inside the mounting bracket 1; the control button A 602 is fixedly installed inside the rectangular storage board 601, and the control button A 602 is used to control the motor 206; the control button B 603 is fixedly installed inside the rectangular storage board 601, and the control button B 603 is used to control the two electric cylinders 501; the U-shaped handle 604 is welded to the front side of the rectangular storage board 601; the control unit 6 further includes: a circular reset shaft 605, a limit retaining ring C 606, and a reset spring D 607; there are two circular reset shafts 605 in total, and the two circular reset shafts 605 are welded to the rear side of the rectangular storage board 601, and the two circular reset shafts 605 are also slidably connected to the mounting bracket 1; there are two limit retaining rings C 606 in total, and the two limit retaining rings C 606 are welded to the rear ends of the two circular reset shafts 605; there are two reset springs D 607 in total, and the two reset springs D 607 are installed outside the two circular reset shafts 605, and the two reset springs D 607 are located between the mounting bracket 1 and the two limit retaining rings C 606; Its specific function is as follows: Since the control button A 602 is fixedly installed inside the rectangular storage board 601 and the control button B 603 is fixedly installed inside the rectangular storage board 601, it is convenient for the staff to control the motor 206 and the two electric cylinders 501. When the control button A 602 is pressed, the motor 206 rotates forward. When the control button A 602 is pressed again, the motor 206 rotates in reverse to reset. When the control button B 603 is pressed, the output shafts of the two electric cylinders 501 extend. When the control button B 603 is pressed again, the output shafts of the two electric cylinders 501 contract to reset. Also, since the rectangular storage board 601 is slidably installed inside the mounting bracket 1, and the two reset springs D 607 are installed outside the two circular reset shafts 605, and the two reset springs D 607 are located between the mounting bracket 1 and the two limit retaining rings C 606, when the staff presses the control button A 602 or the control button B 603, the staff needs to use one hand to pull out the rectangular storage board 601 through the U-shaped handle 604, and use the other hand to press the control button A 602 or the control button B 603, ensuring that when the control button A 602 or the control button B 603 is pressed, the staff's hands are in a safe area, avoiding the equipment from causing accidental injury to the staff.

[0028] The specific usage method and function of this embodiment: When the present invention is in use, place the precision forging raw material 3 between two bending positioning blocks 201 and two rotating bending blocks 203, ensuring that the left and right sides of the precision forging raw material 3 are in contact with the two positioning flat plates 403, which plays a positioning role for the precision forging raw material 3 and makes the precision forging more consistent after forming; one hand of the staff pulls out the rectangular storage plate 601 through the U-shaped handle 604, and the other hand presses the control button B603. When the output shafts of the two electric cylinders 501 extend, the lifting mounting plate 502 drives the rectangular straightening plate 508 to move downward, ensuring that the rectangular straightening plate 508 is in elastic contact with the precision forging raw material 3, which plays a blocking and protective role for the precision forging raw material 3 and improves the safety of the precision forging raw material 3 during bending. When the straightening push block 503 contacts the straightening protrusion 512, the rectangular straightening plate 508 moves forward under the action of the straightening push block 503 and the straightening protrusion 512. When the straightening push block 503 separates from the straightening protrusion 512, the rectangular straightening plate 508 automatically returns backward under the action of the two return springs B506. When the rectangular straightening plate 508 moves forward or backward under the action of friction, it can drive the precision forging raw material 3 to rotate. When the precision forging raw material 3 rotates, it can be automatically straightened, making the precision forging more accurate after forming; then the staff presses the control button A602, ensuring that when the control button A602 or the control button B603 is pressed, the staff's hands are in a safe area, avoiding accidental injury to the staff by the equipment; when the motor 206 works, the two rotating bending blocks 203 rotate simultaneously, which plays a bending role for the precision forging raw material 3 and realizes the automatic forming of the precision forging. Then, the equipment is reset through the control button A602 and the control button B603, and then the formed precision forging is taken out.

[0029] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0030] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A bending device for precision forgings, comprising a mounting bracket (1); two arc-shaped slot holes (101) are formed in the mounting bracket (1); a precision forging raw material (3) to be bent is placed on the top of the mounting bracket (1); it is characterized in that, A precision forging bending unit (2) is installed on the mounting bracket (1); two positioning units (4) are installed on the mounting bracket (1), and the two positioning units (4) are used to position the precision forging raw material (3) to be bent. A straightening unit (5) is installed on the mounting bracket (1), and the straightening unit (5) is located above the precision forging bending unit (2), and the straightening unit (5) is used to straighten the precision forging raw material (3) to be bent; a control unit (6) is installed on the mounting bracket (1), and the control unit (6) is used to control the precision forging bending unit (2) and the straightening unit (5). The straightening unit (5) includes: a straightening push block (503), a movable connection block (505), a circular guide shaft (507), a rectangular straightening plate (508), a limit retaining ring B (509), a return spring C (510), a rectangular mounting block (511) and a straightening protrusion (512); there are two limit retaining rings B (509) in total, and the two limit retaining rings B (509) are welded to the tops of the two circular guide shafts (507), and the bottoms of the two limit retaining rings B (509) are in contact with the two movable connection blocks (505); there are two return springs C (510) in total, and the two return springs C (510) are installed outside the two circular guide shafts (507), and the two return springs C (510) are located between the two movable connection blocks (505) and the rectangular straightening plate (508); the rectangular mounting block (511) is welded to the top of the rectangular straightening plate (508), and the rear side of the rectangular mounting block (511) is tangent to the straightening push block (503); there are two straightening protrusions (512) in total, and the two straightening protrusions (512) are welded to the rear side of the rectangular mounting block (511), and the two straightening protrusions (512) and the straightening push block (503) are located in the same central plane.

2. The bending device for precision forgings according to claim 1, characterized in that, The precision forging bending unit (2) includes: a bending positioning block (201), a connecting plate (202), a rotary bending block (203) and an arc-shaped push frame (204); there are two bending positioning blocks (201) in total, and the two bending positioning blocks (201) are rotatably installed on the mounting bracket (1); there are two connecting plates (202) in total, and the two connecting plates (202) are welded to the outside of the two bending positioning blocks (201), and the tops of the two connecting plates (202) are in contact with the mounting bracket (1); there are two rotary bending blocks (203) in total, and the two rotary bending blocks (203) are welded to the inside of the two connecting plates (202), and the two rotary bending blocks (203) are located in two arc-shaped slot holes (101); there are two arc-shaped push frames (204) in total, and the two arc-shaped push frames (204) are welded to the two connecting plates (202), and receiving grooves (2041) are respectively formed at the tops of the two arc-shaped push frames (204).

3. The bending device for precision forgings according to claim 2, characterized in that, The precision forging bending unit (2) further includes: gear A (205), motor (206) and gear B (207); there are two gear A (205) in total, and the two gear A (205) are welded to the outside of the two bending positioning blocks (201); the motor (206) is fixedly installed on the mounting bracket (1); the gear B (207) is welded to the output shaft of the motor (206), and the gear B (207) is also meshed and connected with the two gear A (205).

4. A bending device for precision forgings according to claim 1, characterized in that, The positioning unit (4) includes: circular movable rod (401), octagonal rod (402) and positioning flat plate (403); the circular movable rod (401) is slidably installed on the mounting bracket (1), and the bottom of the circular movable rod (401) is provided with a rounded corner, and the bottom of the circular movable rod (401) is inserted into the receiving groove (2041); the octagonal rod (402) is slidably installed inside the circular movable rod (401), and the octagonal rod (402) is also slidably connected with the mounting bracket (1); the positioning flat plate (403) is welded to the inner end of the octagonal rod (402), and the inner side of the positioning flat plate (403) contacts the precision forging raw material (3).

5. A bending device for precision forgings according to claim 4, characterized in that, The positioning unit (4) further includes: limit retaining ring A (404) and return spring A (405); the limit retaining ring A (404) is welded to the outside of the octagonal rod (402), and the inner side of the limit retaining ring A (404) contacts the circular movable rod (401); the return spring A (405) is installed on the outside of the octagonal rod (402), and the return spring A (405) is located between the circular movable rod (401) and the positioning flat plate (403).

6. The bending device for precision forgings according to claim 3, characterized in that, The straightening unit (5) further includes: electric cylinder (501), lifting mounting plate (502) and circular guide rod (504); there are two electric cylinders (501) in total, and the two electric cylinders (501) are fixedly installed on the mounting bracket (1); the lifting mounting plate (502) is fixedly installed on the output shafts of the two electric cylinders (501); the straightening push block (503) is welded to the lifting mounting plate (502); there are two circular guide rods (504) in total, and the two circular guide rods (504) are welded to the lifting mounting plate (502).

7. A bending device for precision forgings according to claim 6, characterized in that, The straightening unit (5) further includes: return spring B (506); there are two movable connecting blocks (505) in total, and the two movable connecting blocks (505) are slidably installed on the outside of the two circular guide rods (504); there are two return springs B (506) in total, and the two return springs B (506) are installed on the outside of the two circular guide rods (504); there are two circular guide shafts (507) in total, and the two circular guide shafts (507) are slidably installed on the two movable connecting blocks (505); the rectangular straightening plate (508) is welded to the bottom of the two circular guide shafts (507), and the bottom of the rectangular straightening plate (508) is knurled.

8. A bending device for precision forgings according to claim 6, characterized in that, The control unit (6) includes: a rectangular storage plate (601), a control button A (602), a control button B (603), and a U-shaped handle (604); the rectangular storage plate (601) is slidably installed inside the mounting bracket (1); the control button A (602) is fixedly installed inside the rectangular storage plate (601), and the control button A (602) is used to control the motor (206); the control button B (603) is fixedly installed inside the rectangular storage plate (601), and the control button B (603) is used to control the two electric cylinders (501); the U-shaped handle (604) is welded to the front side of the rectangular storage plate (601).

9. The bending device for precision forgings according to claim 8, characterized in that, The control unit (6) further includes: a circular return shaft (605), a limit snap ring C (606), and a return spring D (607); there are two circular return shafts (605) in total, and the two circular return shafts (605) are welded to the rear side of the rectangular storage plate (601), and the two circular return shafts (605) are also slidably connected to the mounting bracket (1); there are two limit snap rings C (606) in total, and the two limit snap rings C (606) are welded to the rear ends of the two circular return shafts (605); there are two return springs D (607) in total, and the two return springs D (607) are installed outside the two circular return shafts (605), and the two return springs D (607) are located between the mounting bracket (1) and the two limit snap rings C (606).

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