Angle cutting device for angle steel bracket production with adjustable cutting angle

Abstract

The present invention relates to the technical field of angle cutting devices, and discloses an angle cutting device for producing angle steel brackets with adjustable cutting angles, comprising a side wall fixedly mounted on the top of a base plate, and a top plate fixedly mounted on the top of the side wall, wherein the outer wall of the side wall is mounted with two rotating sleeves capable of rotating and sliding, and the inner walls of the two rotating sleeves are both slidably mounted with sliding rods, and the outer walls of the two sliding rods on the side away from the side wall are both mounted with rotatable cutting knives. The present invention adjusts the angle and position of the two rotating sleeves so that the axis extension lines of the two rotating sleeves coincide with the edge of the part to be cut, thereby causing the cutting path of the cutting knife to coincide with the edge of the part to be cut, and then, by adjusting the assembly, the two cutting knives are alternately cut on the angle steel bracket to achieve the purpose of cutting at different angles, thereby adapting to different cutting requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of angle cutting devices, in particular to an angle cutting device for producing angle steel brackets with adjustable cutting angles. Background Art

[0002] Angle cutting devices play an important role in various manufacturing and processing processes. Automated and semi-automated angle cutting devices can speed up cutting, reduce manual operations, improve overall production efficiency, save time and costs, and reduce possible dangers during manual operations, reduce the risk of operator injury, and improve the safety of the working environment.

[0003] As disclosed in Chinese patent publication No. CN221231672U, this utility model is applicable to the field of door frame processing technology and provides a device for processing and cutting corners of anti-theft door frames, including a fixing box, the bottom of which is fixedly connected to support legs near the four corners, the inner cavity of the fixing box is provided with a fixing mechanism, the top of the fixing box is fixedly connected to a first L-shaped plate near the left side, and through the mutual cooperation of various components, when the two threaded sleeves rotate, the adjacent threaded sleeves can be jointly moved to the opposite side under the limit of the adjacent limit blocks and the limit rods, and the two splints can be connected to the opposite side under the connection of the two connecting rods fixed on the adjacent threaded sleeves, so as to facilitate the fixing of the door frame to be processed and improve the cutting effect of the device. Through the mutual cooperation of various components, the debris generated by the door frame cutting can be sucked into the collection box through the dust collecting head and remain on the top of the filter screen, which is convenient for cleaning the debris and reduces the cleaning intensity of the staff.

[0004] When manufacturing angle steel brackets, folding is a common process. In order to ensure that the folded angle steel bracket has good strength and precision, it is very necessary to perform angle cutting before folding. By cutting the appropriate angle at the folding line, the stress concentration in the subsequent bending process can be significantly reduced, preventing the material from cracking or deformation.

[0005] However, this type of corner cutting device can only cut specific angles. In actual construction and engineering, the angles between the walls where the angle steel brackets are installed may not always be right angles, but may have various angles. For example, in some high-end residential or commercial buildings, there are high aesthetic requirements for the exposed bracket structure. By cutting at different angles, the bracket can be made more neat and beautiful after installation. Summary of the Invention

[0006] The object of the present invention is to provide an angle cutting device for producing angle steel brackets with adjustable cutting angles, so as to solve at least one technical problem existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an angle cutting device for producing angle steel brackets with adjustable cutting angles, comprising a side wall fixedly mounted on the top of a bottom plate, and a top plate fixedly mounted on the top of the side wall, two rotating sleeves capable of rotating and sliding are mounted on the outer wall of the side wall, sliding rods are slidably mounted on the inner wall of each of the two rotating sleeves, and rotatable cutting knives are mounted on the outer wall of each of the two sliding rods on a side away from the side wall, the two cutting knives are both located on the axis of the corresponding sliding rod, and the intersection of the cutting paths of the two cutting knives is always located at the intersection of the portion to be cut of the angle steel bracket;

[0008] It also includes a mounting portion mounted on the top of the base plate, wherein the mounting portion can fix the angle steel bracket to be cut;

[0009] It also includes an adjustment component that enables the two sliding rods to slide in the corresponding rotating sleeves.

[0010] Preferably, the adjustment assembly includes a rotating block rotatably mounted on the outer wall of the side wall, the outer wall of the rotating block is integrally formed with two sliding connecting rods, and the outer wall of the two sliding rods close to the side wall is rotatably mounted with a connecting block, and the two connecting blocks are each provided with a through hole for the corresponding sliding connecting rod to slide inside;

[0011] The adjusting assembly further comprises a rotating assembly capable of causing the rotating block to rotate back and forth.

[0012] Preferably, the rotating assembly includes a slotted plate rotatably mounted on the outer wall of the side wall, and the rotating block is fixedly mounted coaxially with the slotted plate, a first electric cylinder capable of reciprocating swing is mounted on the outer wall of the side wall, and the first electric cylinder can swing at an angle of e, a slider is fixedly mounted on the outer wall of the output part of the first electric cylinder, and the slider is slidably mounted on the inner wall of the slotted plate.

[0013] Preferably, a sliding groove is provided on the outer wall of the side wall, and two sliding electric sliders are installed in the sliding groove. The two rotating sleeves are rotatably installed on the outer walls of the two electric sliders through rotating shafts. The outer walls of the two rotating sleeves are rotatably installed with rotating connecting rods. A second electric cylinder is fixedly installed on the top of the top plate, and the output end of the second electric cylinder passes through the top plate and is fixedly installed with a lifting rod, and the two rotating connecting rods are rotatably connected to the outer wall of the lifting rod.

[0014] Preferably, the mounting portion includes a support platform fixedly mounted on the top of the base plate, a fixing plate fixedly mounted on the top of the support platform, a mounting plate fixedly mounted on the top of the base plate, an elastic telescopic rod fixedly mounted on the outer wall of one side of the mounting plate close to the side wall, and a roller rotatably mounted on the end of the output portion of the elastic telescopic rod.

[0015] Preferably, a first gear and a second gear are rotatably mounted on the outer wall of the side wall, and the first gear is engaged with the second gear. The second gear is driven to rotate by an external driving component, and the first electric cylinder is fixedly mounted coaxially with the first gear.

[0016] Preferably, the rotation angle of the first electric cylinder is g, and the angle g is greater than the angle e.

[0017] Preferably, a first laser locator is fixedly mounted on the outer walls of the two sliding rods, and the rays emitted by the first laser locator are consistent with the cutting path of the cutting knife.

[0018] Preferably, a blocking end is provided at the end of the sliding connecting rod.

[0019] Preferably, a second laser locator is installed on the outer wall of the side wall, and the rays emitted by the second laser locator pass through the cutting intersection of the angle steel to be cut.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention adjusts the angles and positions of the two rotating sleeves so that the extended lines of the axes of the two rotating sleeves coincide with the edges of the parts to be cut, thereby making the cutting paths of the cutting knives coincide with the edges of the parts to be cut. Then, by adjusting the components, the two cutting knives are made to alternately cut the angle steel bracket to achieve the purpose of cutting at different angles, thereby adapting to different actual situations. For example, cutting sharp angles can reduce the conflict and extrusion of materials during the bending process, thereby improving the smoothness and precision of the bending; and cutting at obtuse angles can enhance the bearing capacity of the joint part and adapt to larger loads and stress distributions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a main perspective view of the present invention;

[0023] Figure 2 For the present invention Figure 1 A magnified view of point A in the figure;

[0024] Figure 3 For the present invention Figure 1 Enlarged view of point B in FIG.

[0025] Figure 4 It is the front view of the present invention;

[0026] Figure 5 It is a right side view of the present invention;

[0027] Figure 6 This is a schematic diagram of the first state of the present invention;

[0028] Figure 7 This is a schematic diagram of the second state of the present invention;

[0029] Figure 8 This is a schematic diagram of the third state of the present invention;

[0030] Figure 9 This is a schematic diagram of a fourth state of the present invention;

[0031] Figure 10 This is a schematic diagram of the bending of the angle steel bracket in the present invention;

[0032] Figure 11 Schematic diagram of the swing angle of the first electric cylinder in the present invention.

[0033] In the figure: 1. Base plate; 2. Side wall; 3. Top plate; 4. Mounting plate; 5. Elastic telescopic rod; 6. Roller; 7. Support platform; 8. Fixed plate; 9. Slide groove; 10. Cutting knife; 11. Sliding rod; 12. Rotating sleeve; 13. Rotating shaft; 14. Electric slider; 15. Rotating connecting rod; 16. Slotted plate; 17. Rotating block; 18. Sliding connecting rod; 19. Connecting block; 20. First electric cylinder; 21. Sliding pin; 22. First gear; 23. Second gear; 24. Second electric cylinder; 25. Lifting rod; 26. First laser locator; 27. Second laser locator. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1 to 11 The present invention provides a technical solution: an angle cutting device for producing angle steel brackets with adjustable cutting angles, comprising a side wall 2 fixedly mounted on the top of a bottom plate 1, and a top plate 3 fixedly mounted on the top of the side wall 2, two rotating sleeves 12 capable of rotating and sliding are mounted on the outer wall of the side wall 2, a sliding rod 11 is slidably mounted on the inner wall of each of the two rotating sleeves 12, a rotatable cutting knife 10 is mounted on the outer wall of each of the two sliding rods 11 away from the side wall 2, the two cutting knives 10 are both located on the axis of the corresponding sliding rod 11, and the intersection of the cutting paths of the two cutting knives 10 is always located at the intersection of the portion to be cut of the angle steel bracket;

[0036] It also includes a mounting portion mounted on the top of the base plate 1, and the mounting portion can fix the angle steel bracket to be cut;

[0037] It also includes an adjustment component that enables the two sliding rods 11 to slide in the corresponding rotating sleeves 12.

[0038] See Figure 1 When using the device, first fix the angle steel bracket to be cut on the top of the base plate 1 through the mounting portion, adjust the angle and position of the two rotating sleeves 12 so that the angle between the extended lines of the axes of the two rotating sleeves 12 is consistent with the angle of the part to be cut of the angle steel bracket, so that the angle between the cutting paths of the two cutting knives 10 is consistent with the cutting angle, and the intersection point of the extended lines of the cutting paths of the two cutting knives 10 is coincident with the intersection point of the part to be cut, and the sliding rod 11 is made to slide in the rotating sleeve 12 by adjusting the component, and one of the sliding rods 11 will extend out, and under the limiting action of the rotating sleeve 12, the corresponding cutting knife 10 will be moved at The extension line of the axis of the rotating sleeve 12 is used as the path for cutting, and the other sliding rod 11 will be retracted into the rotating sleeve 12 to prevent the two cutting knives 10 from colliding and causing damage to it during cutting. When the first cutting knife 10 completes cutting, the state of the two sliding rods 11 is reversed by adjusting the assembly. The first sliding rod 11 is retracted into the rotating sleeve 12, and the second sliding rod 11 is extended outward to enable the corresponding cutting knife 10 to cut the angle steel bracket. After the angle steel bracket completes the cutting, the position is marked at the bending line and the angle steel is fixed with a bending machine, the bending angle is adjusted, and then the bending is performed slowly and evenly (such as Figure 10 As shown), the bent angle steel bracket is welded by welding components to further enhance its structural strength and stability. This enables the bracket to fit the installation environment closely, improves its structural strength and aesthetics, and reduces subsequent processing and finishing workload.

[0039] In addition, the two rotating sleeves 12 are controlled to rotate and slide through the external structure to change the angle between the two rotating sleeves 12, thereby changing the cutting path and cutting angle of the two cutting knives 10, thereby achieving the purpose of adjusting the cutting angle. Moreover, during the adjustment of the two rotating sleeves 12, the cutting intersection of the two cutting knives 10 is always at the intersection of the part to be cut of the angle steel bracket to ensure the normal cutting process after the angle adjustment.

[0040] Therefore, by adjusting the angle and position of the two rotating sleeves 12, the extended lines of the axes of the two rotating sleeves 12 are made to coincide with the edge of the part to be cut, so that the cutting path of the cutting knife 10 coincides with the edge of the part to be cut, and then by adjusting the component, the two cutting knives 10 are made to alternately cut the angle steel bracket to achieve the purpose of cutting at different angles, thereby adapting to different actual situations. For example, cutting sharp angles can reduce the conflict and extrusion of materials during the bending process, thereby improving the smoothness and precision of the bending; obtuse angle cutting can enhance the bearing capacity of the joint part and adapt to larger loads and stress distribution.

[0041] In addition, by cutting corners at different angles, more complex and diversified structural designs can be achieved to meet the special needs of various engineering applications. In short, diversified corner cutting treatments can not only improve the quality and service life of angle steel brackets, but also improve their adaptability and reliability in different application scenarios.

[0042] Furthermore, the adjustment assembly includes a rotating block 17 rotatably mounted on the outer wall of the side wall 2, and two sliding links 18 are integrally formed on the outer wall of the rotating block 17. The outer walls of the two sliding rods 11 close to the side wall 2 are both rotatably mounted with connecting blocks 19, and the two connecting blocks 19 are each provided with a through hole for the corresponding sliding link 18 to slide inside.

[0043] The adjusting assembly further includes a rotating assembly capable of causing the rotating block 17 to rotate back and forth.

[0044] See Figure 3 as well as Figure 4 After adjusting the cutting angle and position, when the angle steel bracket needs to be cut, the rotating block 17 is rotated by the rotating assembly, so that the rotating block 17 drives the two sliding links 18 to rotate. Figure 7 Taking the clockwise rotation as an example, the sliding link 18 on the right side will move downward and cooperate with the connecting block 19 to extend the sliding rod 11 to the side away from the rotating sleeve 12. Under the limiting effect of the rotating sleeve 12, the sliding rod 11 drives the cutting knife 10 to cut along the extension line of the axis of the rotating sleeve 12 as the path (i.e. Figure 6 The left side sliding rod 11 is contracted into the rotating sleeve 12 under the cooperation of the left sliding connecting rod 18 and its corresponding connecting block 19. When the right cutting knife 10 cuts to the intersection at a, the rotating block 17 is reversed (i.e., rotated counterclockwise) by the rotating assembly. Consistent with the above principle, the left side cutting knife 10 cuts along the path a, and the right side cutting knife 10 retracts toward the rotating sleeve 12 along with the sliding rod 11.

[0045] The rotating block 17 is rotated back and forth by the rotating assembly, so that the two cutting knives 10 alternately cut the diagonal steel bracket along a predetermined route, thereby completing the corner cutting process to facilitate the subsequent bending and welding process.

[0046] Furthermore, the rotating assembly includes a slotted plate 16 rotatably mounted on the outer wall of the side wall 2, and the rotating block 17 is coaxially fixedly mounted with the slotted plate 16. A first electric cylinder 20 capable of reciprocating swing is mounted on the outer wall of the side wall 2, and the first electric cylinder 20 can swing at an angle of e. A sliding pin 21 is fixedly mounted on the outer wall of the output part of the first electric cylinder 20, and the sliding pin 21 is slidably mounted on the inner wall of the slotted plate 16.

[0047] See Figure 2When the diagonal steel bracket needs to be cut, the first electric cylinder 20 is rotated through the external component, thereby driving the sliding pin 21 to rotate, and then driving the slotted plate 16 to rotate in the opposite direction. Since the rotating block 17 is coaxially installed with the slotted plate 16, when the slotted plate 16 rotates, the rotating block 17 will rotate together with the slotted plate 16, thereby achieving the purpose of rotating the sliding link 18, thereby completing the above-mentioned process of alternately extending and retracting the two sliding rods 11, and in this process, the two cutting knives 10 alternately complete the cutting task.

[0048] It is worth mentioning that during the processing, directly performing the final cutting may cause uneven stress on the material, rough cuts or cutting deviations, and directly performing the final cutting on the angle steel bracket will make the cutting knife 10 more easily damaged, increasing the production cost. Therefore, it is very necessary to pre-cut the angle steel bracket before the final cutting. The specific implementation method is as follows:

[0049] Before the final cutting of the angle steel bracket, adjust the output part of the first electric cylinder 20 to retract to a predetermined position, so that the sliding pin 21 is initially further away from the rotation axis of the slot plate 16, and then when the first electric cylinder 20 rotates, the rotation amplitude of the slotted plate 16 is smaller, such as Figure 11 As shown, the rotation amplitude of the first electric cylinder 20 is e. When the first electric cylinder 20 rotates to the extreme angle, the axis of the slotted plate 16 is just perpendicular to the axis of the first electric cylinder 20. At this time, the slotted plate 16 rotates to the farthest distance, and at this time one of the cutting knives 10 is slightly in contact with the angle steel bracket to be cut (according to the above, it can be seen that the rotation of the slotted plate 16 will drive the cutting knife 10 to move along the boundary of the cutting part) to achieve the purpose of pre-cutting the angle steel bracket, and under the premise that the first electric cylinder 20 rotates at a uniform speed, the slotted plate 16 will have a deceleration swing process during the process of the axis of the first electric cylinder 20 rotating to be perpendicular to the axis of the slotted plate 16, which will act on the cutting knife 10 and make the cutting knife 10 slowly approach the angle steel bracket to be cut. In this process, the operator can better observe the cutting point, prevent the cutting position error, and have enough time to adjust or shut down.

[0050] When the pre-cutting is completed, by driving the first electric cylinder 20 to extend and retract outward, the sliding pin 21 moves toward the direction close to the rotation axis of the slotted plate 16. At this time, when the first electric cylinder 20 rotates, the rotation amplitude of the sliding pin 21 will be larger to complete the above-mentioned process of cutting the angle steel bracket (the above description is detailed enough and will not be repeated here).

[0051] Furthermore, a slide groove 9 is provided on the outer wall of the side wall 2, and two sliding electric sliders 14 are installed in the slide groove 9. The two rotating sleeves 12 are rotatably installed on the outer walls of the two electric sliders 14 through the rotating shaft 13. The outer walls of the two rotating sleeves 12 are rotatably installed with a rotating connecting rod 15. A second electric cylinder 24 is fixedly installed on the top of the top plate 3. The output end of the second electric cylinder 24 passes through the top plate 3 and is fixedly installed with a lifting rod 25. The two rotating connecting rods 15 are rotatably connected to the outer wall of the lifting rod 25.

[0052] See Figure 4 When different angles need to be cut, for example, to adjust to a smaller angle, the second electric cylinder 24 controls the lifting rod 25 to be adjusted vertically upward. At this time, under the action of the rotating connecting rod 15, the angle between the extended lines of the axes of the two rotating sleeves 12 will be smaller. However, by simply adjusting the movement of the lifting rod 25, although the angle between the cutting paths of the two cutting blades 10 will be smaller, the final cutting intersection will change. Figure 8 At this time, by adjusting the two electric sliders 14 to move closer to each other, the two rotating sleeves 12 are moved closer, and in this process, the two sliding rods 11 drive the corresponding connecting blocks 19 to slide on the sliding connecting rod 18, thereby making the two cutting knives 10 move closer to each other while ensuring the cutting angle, until the intersection of the cutting paths of the two cutting knives 10 coincides with the intersection of the part to be cut, that is, Figure 9 As shown by the dotted line at d in the middle, the cutting angle is adjusted; when it is necessary to adjust to a larger cutting angle, consistent with the above principle, the lifting rod 25 is adjusted to move vertically downward through the second electric cylinder 24, and the two electric sliders 14 are adjusted away from each other to complete the adjustment of the cutting angle.

[0053] In summary, the two cutting knives 10 are rotated and the cutting angle is adjusted through the second electric cylinder 24 to achieve cutting of various angles of the diagonal steel bracket. At the same time, the two electric sliders 14 can move the cutting knife 10 after the angle is adjusted to compensate for the position offset of the cutting knife 10 after rotation, ensuring the accuracy of the final cutting point and achieving high-precision cutting.

[0054] Furthermore, the mounting portion includes a support platform 7 fixedly mounted on the top of the base plate 1, a fixing plate 8 fixedly mounted on the top of the support platform 7, a mounting plate 4 fixedly mounted on the top of the base plate 1, an elastic telescopic rod 5 fixedly mounted on the outer wall of one side of the mounting plate 4 close to the side wall 2, and a roller 6 rotatably mounted on the end of the output part of the elastic telescopic rod 5.

[0055] See Figure 1 as well as Figure 5Before cutting the angle steel bracket, place the angle steel bracket to be cut flat on the top of the support platform 7, so that the side to be cut is vertically under the two cutting knives 10, and the side to be cut is in contact with the fixed plate 8. The roller 6 on the elastic telescopic rod 5 cooperates with the fixed plate 8 for positioning. The operator pulls the angle steel bracket to be cut to adjust it so that the intersection of the part to be cut coincides with the intersection of the cutting path of the cutting knife 10. After adjustment, the roller 6 is locked to prevent the angle steel bracket from shifting during the cutting process.

[0056] Furthermore, a first gear 22 and a second gear 23 are rotatably mounted on the outer wall of the side wall 2 , and the first gear 22 is engaged with the second gear 23 . The second gear 23 is driven to rotate by an external driving component, and the first electric cylinder 20 is coaxially fixedly mounted with the first gear 22 .

[0057] See Figure 2 as well as Figure 5 When it is necessary to drive the first electric cylinder 20 to rotate and drive the cutting blade 10 to perform pre-cutting or final cutting on the angle steel bracket, the second gear 23 is driven to rotate by the motor fixed to the outer wall of the side wall 2. This causes the first gear 22 to rotate, and then drives the first electric cylinder 20 and the sliding pin 21 to rotate, so that the cutting blade 10 can cut the angle steel bracket. If the first electric cylinder 20 is directly installed on the output shaft of the motor, it will cause the motor load to be high, which may cause a safety accident. The coordinated driving of the first gear 22 and the second gear 23 can share the load of the motor, allowing the motor to work at a lower load, extending the service life of the motor. In addition, the motor can work for a long time under low load conditions, reducing the risk of overheating and wear during operation, and preventing accidents.

[0058] Furthermore, the rotation angle of the first electric cylinder 20 is g, and g is greater than e.

[0059] See Figure 11As can be seen from the above, when pre-cutting the angle steel bracket, the first electric cylinder 20 is shortened first. When the first electric cylinder 20 rotates until its axis is perpendicular to the axis of the slotted plate 16, it is a critical point (that is, before the two are rotated to be perpendicular, the cutting knife 10 will be close to the angle steel bracket, and when it continues to rotate, it will move away). The closer to the critical point, the slower the rotation speed of the slotted plate 16. When the rotation angle of the first electric cylinder 20 is set to g, the slotted plate 16 will gradually slow down and swing. When the first electric cylinder 20 exceeds the range of e, the slotted plate 16 will accelerate the reverse swing. When the first electric cylinder 20 rotates in the reverse direction, the slotted plate 16 first swings counterclockwise. When the axis of the first electric cylinder 20 is closer, the slotted plate 16 will swing counterclockwise. When passing the boundary of angle e, the slotted plate 16 will rotate clockwise again, which corresponds to the cutting knife 10: the cutting knife 10 first slows down and contacts the angle steel bracket. When it just contacts lightly, it will accelerate away to reduce the stress concentration at the cutting point, prevent the angle steel bracket and the cutting knife 10 from cracking or breaking during the pre-cutting process, and protect the cutting knife 10 and the angle steel bracket. When the first electric cylinder 20 rotates in the opposite direction, the cutting knife 10 will first perform a second pre-cut on the angle steel bracket, and then gradually move away and reset. The secondary pre-cutting can further correct the error of the initial cutting, ensure the accuracy of the cutting angle and position, improve the straightness and smoothness of the cutting line, and reduce the need for subsequent processing.

[0060] Furthermore, first laser locators 26 are fixedly mounted on the outer walls of the two sliding rods 11 , and the rays emitted by the first laser locators 26 are consistent with the cutting path of the cutting knife 10 .

[0061] Furthermore, a second laser locator 27 is installed on the outer wall of the side wall 2, and the rays emitted by the second laser locator 27 pass through the cutting intersection of the angle steel to be cut.

[0062] See Figure 4 as well as Figure 5 Before cutting the angle steel bracket, align the intersection of the part to be cut with the ray emitted by the second laser locator 27. Adjust the rotating sleeve 12 through the cooperation of the second electric cylinder 24 and the electric slider 14 so that the intersection of the rays emitted by the two first laser locators 26 is on the ray of the second laser locator 27, thereby achieving the purpose of positioning and reducing errors in the cutting process.

[0063] Furthermore, a blocking end is provided at the end of the sliding link 18 .

[0064] See Figure 4 One end of the sliding link 18 is provided with a column top to prevent the connecting block 19 from being separated from the sliding link 18 during the sliding process on the sliding link 18, so as to ensure the stability of the entire structure.

[0065] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for angle steel bracket production with adjustable cutting angle, comprising a side wall (2) fixedly mounted on the top of a bottom plate (1), and a top plate (3) fixedly mounted on the top of the side wall (2), characterized in that: The outer wall of the side wall (2) is provided with two rotating sleeves (12) capable of rotating and sliding, and the inner walls of the two rotating sleeves (12) are both slidably provided with sliding rods (11), and the outer walls of the two sliding rods (11) away from the side wall (2) are both provided with rotatable cutting knives (10), and the two cutting knives (10) are both located on the axis of the corresponding sliding rod (11), and the intersection of the cutting paths of the two cutting knives (10) is always located at the intersection of the portion to be cut of the angle steel bracket; It also includes a mounting portion mounted on the top of the base plate (1), wherein the mounting portion can fix the angle steel bracket to be cut; It also includes an adjustment assembly that enables both of the sliding rods (11) to slide in the corresponding rotating sleeves (12); The adjustment assembly comprises a rotating block (17) rotatably mounted on the outer wall of the side wall (2), the outer wall of the rotating block (17) is integrally formed with two sliding connecting rods (18), and the outer walls of the two sliding rods (11) on one side close to the side wall (2) are both rotatably mounted with connecting blocks (19), and the two connecting blocks (19) are each provided with a through hole for the corresponding sliding connecting rod (18) to slide inside. The adjusting assembly further comprises a rotating assembly capable of causing the rotating block (17) to rotate back and forth.

2. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 1 is characterized in that: The rotating assembly comprises a slotted plate (16) rotatably mounted on the outer wall of the side wall (2), and the rotating block (17) is fixedly mounted coaxially with the slotted plate (16); a first electric cylinder (20) capable of reciprocating swing is mounted on the outer wall of the side wall (2), and the first electric cylinder (20) can swing at an angle e; a sliding pin (21) is fixedly mounted on the outer wall of the output portion of the first electric cylinder (20), and the sliding pin (21) is slidably mounted on the inner wall of the slotted plate (16).

3. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 2 is characterized in that: The outer wall of the side wall (2) is provided with a slide groove (9), and two slidable electric sliders (14) are installed in the slide groove (9). The two rotating sleeves (12) are respectively rotatably installed on the outer walls of the two electric sliders (14) through the rotating shaft (13). The outer walls of the two rotating sleeves (12) are both rotatably installed with a rotating connecting rod (15). A second electric cylinder (24) is fixedly installed on the top of the top plate (3). The output end of the second electric cylinder (24) passes through the top plate (3) and is fixedly installed with a lifting rod (25). The two rotating connecting rods (15) are both rotatably connected to the outer wall of the lifting rod (25).

4. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 1 is characterized in that: The mounting portion comprises a support platform (7) fixedly mounted on the top of the base plate (1); a fixing plate (8) is fixedly mounted on the top of the support platform (7); a mounting plate (4) is fixedly mounted on the top of the base plate (1); an elastic telescopic rod (5) is fixedly mounted on the outer wall of one side of the mounting plate (4) close to the side wall (2); and a roller (6) is rotatably mounted on the end of the output portion of the elastic telescopic rod (5).

5. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 2, characterized in that: A first gear (22) and a second gear (23) are rotatably mounted on the outer wall of the side wall (2), and the first gear (22) is meshed with the second gear (23). The second gear (23) is driven to rotate by an external driving component. The first electric cylinder (20) is coaxially fixedly mounted with the first gear (22).

6. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 2, characterized in that: The rotation angle of the first electric cylinder (20) is g, and the angle g is greater than the angle e.

7. The angle cutting device for producing angle steel brackets with adjustable cutting angle according to any one of claims 1 to 6, characterized in that: A first laser locator (26) is fixedly mounted on the outer walls of the two sliding rods (11), and the rays emitted by the first laser locator (26) are consistent with the cutting path of the cutting knife (10).

8. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 1, characterized in that: The end of the sliding link (18) is provided with a blocking end.

9. The angle cutting device for producing angle steel brackets with adjustable cutting angles according to claim 7, characterized in that: A second laser locator (27) is installed on the outer wall of the side wall (2), and the rays emitted by the second laser locator (27) pass through the cutting intersection of the angle steel to be cut.

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