Metal line bending machine

Abstract

The utility model relates to a metal line bending machine which comprises an operation table body and a bottom cabinet, the operation table body is horizontally arranged, the bottom cabinet with the top open is fixedly installed on the bottom face of the operation table body, and a storage transverse plate is horizontally unfolded and fixed to the middle in the bottom cabinet. The utility model has the beneficial effects that the rear part and the side part of the turning and bending assembly are provided with the positioning and limiting assembly for limiting the position of the metal line when the metal line is bent and placed; in this way, the metal line can be accurately limited and placed on the top face of the bending female die through the positioning limiting assembly, the fold position is vertically aligned with the bottom edge of the bending male die, accurate limiting of the fold position of the metal line is achieved, and a fold limiting control mode that an operator observes and corrects is replaced. And the bending machining efficiency of the metal lines can be improved, and the defective rate of bending machining of the metal lines can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of metal line processing auxiliary components, in particular to a metal line bending machine. Background Art

[0002] In the process of home wall decoration, the common wall decoration lines in the past were mostly simple materials such as plaster lines, but nowadays, metal wall decoration lines have become the new mainstream. Specifically speaking of decorative metal lines, in addition to being a very good finishing material, it is also a decorative material with the effect of adding the finishing touch. At the same time, it has the characteristics of fire resistance, light weight, and high strength. During the production stage, the surface is generally oxidized and colored, so it can be made into a variety of different colors.

[0003] Specifically in the processing and production process of metal lines, it is necessary to use bending equipment to bend the metal lines into an L-shaped shape to meet the needs of edge decoration. Specifically for the bending equipment, the current operation process of the bending equipment is usually: the metal line is placed flat on the top surface of the concave die of the V-shaped bending die, and then the metal line is bent by pressing the punch of the V-shaped bending die and cooperating with the bending groove of the concave die. However, due to the lack of positioning and limiting means for the crease position of the metal line in the bending equipment, it is usually necessary to first mark the crease position on the surface of the metal line during the bending process, and then the crease position is limited by comparing the punch with the marking line of the crease position during the bending process. When this method of limiting the crease position is implemented, the operator needs to always keep an eye on whether the marked position is aligned with the bottom edge of the punch. At the same time, repeated corrections are required to accurately compare and errors are prone to occur, resulting in low efficiency of the bending process of the metal line, and a high defective rate of the bending process of the metal line. Utility Model Content

[0004] The purpose of the utility model is to provide a metal wire bending machine in order to solve the above-mentioned problem. A positioning and limiting component for limiting the position of the metal wire when it is bent is installed at the rear and side positions of the flipping and bending component. The positioning and limiting component can accurately limit the metal wire to the top surface of the bending die and align the crease position vertically with the bottom edge of the bending punch, thereby achieving accurate limitation of the crease position of the metal wire. See the following description for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a metal wire bending machine, comprising an operating table body and a bottom cabinet, wherein the operating table body is horizontally arranged, the bottom surface of the operating table body is fixedly installed with the bottom cabinet with an open top, and a horizontal plate for placing objects is horizontally unfolded and fixed in the middle of the bottom cabinet;

[0007] A turning and bending assembly for turning and bending the metal wire is installed in the middle of the top surface of the operating table body, and part of the turning and bending assembly is fixedly installed on the top surface of the storage horizontal plate, and a safety limit assembly for limiting the descending distance of the turning and bending assembly is installed at one side of the turning and bending assembly;

[0008] The operating table body is provided with positioning and limiting components at the rear and side positions of the flip and bend components for limiting the position of the metal wire when it is bent and placed;

[0009] The operating table body is provided with a workpiece collecting assembly for collecting the bent metal wires at the front position of the flipping and bending assembly.

[0010] Preferably, the flip bending assembly includes a bending die, a bending punch and a cylinder body, the bending die is fixed laterally on the middle part of the top surface of the operating table body, and the bending groove on the top of the bending die is arranged laterally, the bending punch is arranged laterally on the upper part of the bending die, the lower part of the bending punch is directly opposite to the bending groove up and down and can adapt to each other, both sides of the bending punch are horizontally extended and fixed with mounting wing plates, and the mounting wing plate at one side is installed with the safety limit assembly, and the mounting wing plate at the other side is connected with part of the positioning and limiting assembly, the cylinder body is vertically fixed on both sides of the top surface of the storage cross plate, the push rod on the top of the cylinder body is vertically arranged and passes through the top surface of the operating table body in a sliding fit, and the top end of the push rod is connected to the bottom surface of the mounting wing plate on the corresponding side through a connecting sleeve.

[0011] Preferably, the bending groove is a through groove in the transverse direction, and the bending punch and the bending die are flush at both ends in the transverse direction; the cross-sectional shapes of the lower part of the bending punch and the bending groove along the longitudinal vertical plane are both V-shaped.

[0012] Preferably, the safety limit assembly includes a limit stud and a limit nut, the mounting wing plate at one side is engaged and interspersed with the limit stud in a vertical threaded manner, and the portions of the limit stud extending out from the top and bottom surfaces of the mounting wing plate are coaxially engaged with the limit nut.

[0013] Preferably, the limiting nuts are all hexagonal nuts and their peripheries do not interfere with the bending punch, and the top end of the limiting stud is coaxially fixed with an end for convenient gripping and force application.

[0014] Preferably, the positioning and limiting assembly includes a fixed seat and a movable seat, the fixed seat is fixedly mounted on the top surface of the operating table body at a position behind the bending die in the longitudinal direction, and a slide groove is provided on the top surface of the fixed seat in the longitudinal direction, and the slide groove is slidably matched with the movable seat in the longitudinal direction, a limiting back plate vertically arranged in the transverse direction is fixedly installed on the front of the top surface of the movable seat through a connecting plate, and the top surface of the limiting back plate is not lower than the top surface of the bending die, and a mounting hole is vertically provided on the rear part of the top surface of the movable seat, the mounting hole is a through hole and a clamping stud is vertically engaged and inserted, and at the same time, an elastic pressure block of a buffer material is coaxially fixed to the bottom of the clamping stud near the bottom of the slide groove.

[0015] Preferably, the slide groove is a dovetail groove or an I-shaped groove, and the top surface of the movable seat is not lower than the top of the slide groove; the connecting plate is an L-shaped plate and the vertical part and the horizontal part are respectively connected to the back side of the limiting back plate and the top surface of the movable seat.

[0016] Preferably, the elastic pressing block is a circular rubber block with an outer diameter smaller than the inner diameter of the mounting hole, and a handle for easy holding is coaxially fixed to the top end of the clamping stud.

[0017] Preferably, a limiting side plate is vertically fixed to the bottom surface of the mounting wing plate on which the safety limiting assembly is not installed, and the limiting side plate contacts but is not fixed to the side end surfaces close to the bending punch and the bending die, and the operating table body is vertically opened to a guide opening at a position corresponding to the limiting side plate, and the lower part of the limiting side plate passes through the guide opening in a vertical sliding fit; the limiting back plate and the limiting side plate are rectangular long strips arranged horizontally and vertically respectively, and the horizontal width of the limiting back plate is not less than the horizontal width of the bending die, and the longitudinal width of the limiting side plate is not greater than the longitudinal width of the bending die.

[0018] Preferably, a cabinet door that can be opened and closed is installed on the front of the base cabinet; the workpiece collection assembly includes a blanking opening and a collection box, the operating table body is provided with a blanking opening vertically opened horizontally in front of the bending die to allow the bent metal wire to fall smoothly into the base cabinet, the collection box is placed on the top surface of the storage horizontal plate above the blanking opening, and the cylinder body and the limiting side plate do not interfere with the position of the collection box.

[0019] By using the above-mentioned metal wire bending machine, specifically in the process of bending the metal wire, since the positioning and limiting components for limiting the position of the metal wire when it is bent are installed at the rear and side positions of the flip-bending component, in the process of placing the metal wire on the top of the flip-bending component, the positioning and limiting components can accurately limit the metal wire to the top surface of the bending concave die and align the crease position with the bottom edge of the bending punch vertically, thereby achieving accurate limiting of the crease position of the metal wire, replacing the crease limit control method of observation and correction by the operator, which is beneficial to improving the bending efficiency of the metal wire and reducing the defective rate of the metal wire bending process. During operation, the metal line with the crease position marking line is placed flat on the top surface of the bending die, so that one end of the metal line is against the side end surface of the limiting side plate, so that the side end position of the metal line during the placement process can be blocked and limited by the limiting side plate of the positioning and limiting assembly, and then the clamping stud is rotated clockwise to make the elastic pressure block rise and leave the bottom of the slide groove, and then the metal line is pushed to the crease mark position by the moving seat sliding along the slide groove longitudinally and compared with the bottom edge of the bending groove horizontally, and then the moving seat is kept stationary and the clamping stud is reversed counterclockwise to make the elastic pressure block at the bottom press against the bottom of the slide groove, so as to lock the moving seat from sliding along the slide groove, and then The limiting back plate is locked to a blocking and limiting state of the metal line from the rear, so that the limiting back plate of the positioning and limiting assembly can block and limit the rear position of the metal line during the placement process, and then the limiting side plate and the limiting back plate can respectively block and limit from the side and the rear to quickly limit the folding position of the metal line to be vertically aligned with the bottom edge of the bending punch. The positioning and limiting operation of the folding position of the metal line is simple and easy to implement, which is convenient for accurately limiting the folding position of the metal line. At the same time, the limiting back plate can be fixed by sliding the movable seat of the positioning and limiting assembly along the longitudinal direction of the slide groove and pressing the elastic pressing block to the bottom of the slide groove by screwing the clamping stud. The front and rear positions are adjusted and locked, so that the position of the limit back plate can be adjusted when blocking and limiting, which is convenient for limiting the crease position of metal lines with different longitudinal widths, thereby improving the general use range of the positioning and limiting component. After the crease limit operation of the metal line is completed, the cylinder body is ventilated by connecting to the external air supply pipeline. The cylinder body drives the bending punch to descend by the inward retraction of the push rod. During the descent process, the bending punch cooperates with the bending groove to bend the metal line with the top surface of the bending die flat, so as to process and produce an L-shaped metal line edge finishing workpiece. In the process of the flipping and bending assembly bending the metal line,Since the mounting wing plate on one side of the flip and bending assembly is fixedly provided with the safety limit assembly for limiting the descending distance of the flip and bending assembly, the descending distance of the bending punch can be limited by the bottom end of the limit stud of the safety limit assembly contacting the top surface of the operating table body, and then the bending punch can be prevented from descending too low and damaging the crease position of the metal line by limiting the descending distance of the bending punch, which is beneficial to improving the product quality of the metal line after bending. At the same time, specifically with respect to the safety limit assembly, since the position height of the bottom end of the limit stud can be adjusted by twisting the limit stud, the bottom end of the limit stud can be adjusted to a suitable safety limit position according to the thickness of the metal line to be bent, thereby improving the adaptability and flexibility of the safety limit assembly during use. Specifically, in the adjustment operation of the limit stud, when no metal line is placed on the top surface of the bending die, the limit stud The bending punch is lowered to the bottom and fully matches the bending groove, and then remains stationary. Then the limiting stud is screwed down until the bottom end contacts the top surface of the operating table body. Then, the limiting stud is screwed up again until the distance between the bottom end of the limiting stud and the top surface of the operating table body is equal to the thickness of the metal line to be bent. The distance between the bottom end of the limiting stud and the top surface of the operating table body can be compared and adjusted by horizontally padding the metal line to be bent, thereby completing the adaptability adjustment of the safety limiting assembly. After the bending operation of the metal line is completed, since the workpiece collecting assembly for collecting the bent metal line is provided at the front position of the flipping and bending assembly, after the metal line is bent, the bent metal line can be pushed into the blanking opening so that the bent metal line can fall into the collection box and be collected in a centralized manner, thereby realizing the centralized collection of the bent metal lines, and facilitating the centralized removal of the bent metal lines in batches for transportation and storage.

[0020] The beneficial effects are as follows: 1. The utility model is provided with a positioning and limiting assembly at the rear and side positions of the turning and bending assembly to limit the position of the metal line when it is placed during bending, so that the metal line can be accurately limited and placed on the top surface of the bending concave die through the positioning and limiting assembly and the crease position is vertically aligned with the bottom edge of the bending punch, thereby realizing accurate limiting of the crease position of the metal line, replacing the crease limit control method of observation and correction by the operator, which is beneficial to improving the bending processing efficiency of the metal line and reducing the defective rate of the bending processing of the metal line;

[0021] 2. The side end position of the metal line during the placement process can be blocked and limited by the limiting side plate of the positioning limiting component, and the rear position of the metal line during the placement process can be blocked and limited by the limiting back plate of the positioning limiting component. Then, the crease position of the metal line can be quickly limited to be vertically aligned with the bottom edge of the bending punch by blocking and limiting the limiting side plate and the limiting back plate from the side and the rear respectively. The positioning and limiting operation of the crease position of the metal line is simple and easy to implement, which is convenient for realizing accurate limiting of the crease position of the metal line;

[0022] 3. The position of the limit back plate can be adjusted and locked by sliding the movable seat of the positioning limit assembly along the longitudinal direction of the slide groove and tightening the elastic pressure block to the bottom of the slide groove by screwing the clamping stud. In this way, the position of the limit back plate can be adjusted when blocking and limiting, which is convenient for limiting the crease position of metal lines with different longitudinal widths, thereby improving the general use range of the positioning limit assembly;

[0023] 4. A safety limit assembly for limiting the descending distance of the flip bending assembly is fixedly provided on the mounting wing plate on one side of the flip bending assembly, so that the lower end of the limit stud of the safety limit assembly contacts the top surface of the operating table body to limit the descending distance of the bending punch, thereby preventing the bending punch from descending too low and damaging the crease position of the metal line by limiting the descending distance of the bending punch, which is beneficial to improving the product quality of the metal line after bending;

[0024] 5. The position height of the bottom end of the limit stud can be adjusted by twisting the limit stud, and then the bottom end of the limit stud can be adjusted to a suitable safety limit position according to the thickness of the metal line to be bent, which improves the adaptability and flexibility of the safety limit assembly during use;

[0025] 6. A workpiece collecting assembly for collecting bent metal wires is provided in front of the flipping and bending assembly. After the metal wires are bent, the bent metal wires can be pushed into the blanking opening to fall into the collecting box and collected centrally, thereby realizing the centralized collection of the bent metal wires and facilitating the centralized removal of the bent metal wires in batches for transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1This is the overall axonometric diagram of the utility model. Figure 1 ;

[0028] Figure 2 This is the overall axonometric diagram of the utility model. Figure 2 ;

[0029] Figure 3 This utility model Figure 1 Cross-section diagram Figure 1 ;

[0030] Figure 4 This utility model Figure 3 A local enlarged view of point A;

[0031] Figure 5 This utility model Figure 3 A partial enlarged view of point B;

[0032] Figure 6 This utility model Figure 1 Cross-section diagram Figure 2 ;

[0033] Figure 7 This utility model Figure 6 A partial enlarged view of point C;

[0034] Figure 8 This utility model Figure 1 Cross-section diagram Figure 3 ;

[0035] Fig. 9 This utility model Figure 8 A partial enlarged view of point D;

[0036] Fig.10 This utility model Figure 1 The front view of the external image;

[0037] Fig.11 This utility model Figure 1 Dorsal external view of ;

[0038] Fig.12 This utility model Figure 1 The left external view of

[0039] Fig.13 This utility model Figure 1 The right external view of

[0040] Fig.14 This utility model Figure 1 External view from above.

[0041] The following are the descriptions of the reference numerals:

[0042] 1. Flip bending assembly; 101. Bending punch; 102. Bending groove; 103. Bending die; 104. Mounting wing plate; 105. Connecting sleeve; 106. Push rod; 107. Cylinder body; 2. Operation table body; 3. Base cabinet; 301. Cabinet door; 302. Storage horizontal plate; 4. Safety limit assembly; 401. End; 402. Limit stud; 403. Limit nut; 5. Positioning limit assembly; 501. Fixed seat; 502. Moving seat; 503. Slide; 504. Mounting hole; 505. Clamping stud; 506. Handle; 507. Connecting plate; 508. Limit back plate; 509. Limit side plate; 5010. Guide opening; 5011. Elastic pressure block; 6. Workpiece collection assembly; 601. Blanking opening; 602. Collection box. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0044] See also Figure 1-Figure 14As shown, the utility model provides a metal wire bending machine, including an operating table body 2 and a bottom cabinet 3. The operating table body 2 is horizontally arranged, and the bottom surface of the operating table body 2 is fixedly installed with the bottom cabinet 3 with an open top, and the inner middle part of the bottom cabinet 3 is horizontally unfolded and fixed with a storage cross plate 302. A turning and bending assembly 1 for turning and bending metal wires is installed in the middle of the top surface of the operating table body 2, and part of the turning and bending assembly 1 is fixedly installed on the top surface of the storage horizontal plate 302. Specifically, the turning and bending assembly 1 includes a bending die 103, a bending punch 101 and a cylinder body 107. A bending die 103 is fixed in the middle of the top surface of the operating table body 2 along the horizontal direction, and a bending groove 102 at the top of the bending die 103 is arranged in the horizontal direction, and a bending punch 101 is arranged in the horizontal direction above the bending die 103. The lower part of the bending punch 101 is directly opposite to the bending groove 102 up and down and can be adapted to each other. Both sides of the bending punch 101 are horizontally extended and fixed with mounting wing plates 104, and the mounting wing plate 104 at one side is installed with a safety limit assembly 4, and the mounting wing plate 104 at the other side is opposite to part of the positioning limit assembly 5. The cylinder body 107 is vertically fixed on both sides of the top surface of the storage horizontal plate 302, and the push rod 106 on the top of the cylinder body 107 is vertically arranged and passes through the top surface of the operating table body 2 in a sliding fit. At the same time, the top of the push rod 106 is connected to the bottom surface of the mounting wing plate 104 on the corresponding side through a connecting sleeve 105. Preferably, the connecting sleeve 105 is welded to the bottom surface of the mounting wing plate 104, and the connecting sleeve 105 and the push rod 106 are coaxially interference fit. With this arrangement, the cylinder body 107 is ventilated by connecting to the external air supply pipeline. The cylinder body 107 drives the bending punch 101 to descend by the inward retraction of the push rod 106. During the descent process, the bending punch 101 cooperates with the bending groove 102 to bend the metal wire placed flat on the top surface of the bending die 103, so as to process and produce an L-shaped metal wire edge finishing workpiece.

[0045] A safety limit assembly 4 is installed at one side of the flip and bend assembly 1 to limit the descending distance of the flip and bend assembly 1. Specifically, the safety limit assembly 4 includes a limit stud 402 and a limit nut 403. The mounting wing plate 104 at one side engages with the limit stud 402 in a vertical threaded manner, and the portion of the limit stud 402 extending from the top and bottom surfaces of the corresponding mounting wing plate 104 is coaxially engaged with the limit nut 403. The function of this arrangement is to limit the descending distance of the flip and bend assembly 1 by the limit stud 402. The way in which the bottom end of 02 contacts the top surface of the operating table body 2 can limit the descending distance of the bending punch 101, and then the way in which the bending punch 101 descends can be prevented from descending too low and damaging the crease position of the metal line by limiting the descending distance of the bending punch 101. At the same time, the position height of the bottom end of the limiting stud 402 can be adjusted by twisting the limiting stud 402, and then the bottom end of the limiting stud 402 can be adjusted to a suitable safety limit position according to the thickness of the metal line to be bent.

[0046] See also Figure 1-Figure 9 As shown, the operating table body 2 is installed with a positioning and limiting component 5 for limiting the position of the metal wire when it is bent and placed at the rear and side positions of the flip-turn bending component 1. Specifically, the positioning and limiting component 5 includes a fixed seat 501 and a movable seat 502. The top surface of the operating table body 2 is fixed with a fixed seat 501 in the longitudinal direction at the rear of the bending die 103, and a slide groove 503 is provided on the top surface of the fixed seat 501 in the longitudinal direction. The slide groove 503 is slidably matched with the movable seat 502 in the longitudinal direction. A limiting back plate 508 vertically arranged in the transverse direction is fixedly installed at the front of the top of the movable seat 502 through a connecting plate 507, and the top surface of the limiting back plate 508 is not lower than the top surface of the bending die 103. A mounting hole 504 is vertically provided at the rear of the top surface of the movable seat 502. The mounting hole 504 is a through hole and is vertically engaged with a clamping stud 505. At the same time, the clamping stud 505 is pressed against An elastic pressure block 5011 made of a buffer material is coaxially fixed to the bottom end of the bottom of the slide groove 503. The purpose of this arrangement is to block and limit the rear position of the metal line during the placement process through the limiting back plate 508, and then the limiting back plate 508 can block and limit from the rear to quickly limit the folding position of the metal line to vertical alignment with the bottom edge of the bending punch 101, so as to facilitate the accurate limitation of the folding position of the metal line. At the same time, the movable seat 502 of the positioning and limiting component 5 slides longitudinally along the slide groove 503 and the elastic pressure block 5011 is pressed against the bottom of the slide groove 503 by screwing the clamping stud 505, so that the limiting back plate 508 can be adjusted and locked in the front and rear position, so that the position of the limiting back plate 508 during blocking and limiting can be adjusted, so as to facilitate the use of limiting the folding position of metal lines with different longitudinal widths.

[0047] See also Figure 3-Figure 9As shown, the operating table body 2 is provided with a workpiece collecting component 6 for collecting the bent metal lines at the front position of the flipping and bending component 1. Specifically, the workpiece collecting component 6 includes a blanking opening 601 and a collection box 602. The operating table body 2 is provided with a blanking opening 601 vertically and horizontally in front of the bending die 103 to allow the bent metal lines to smoothly fall into the bottom cabinet 3. The collection box 602 is placed on the top surface of the storage horizontal plate 302 above the blanking opening 601, and the cylinder body 107 and the limiting side plate 509 do not interfere with the position of the collection box 602. The advantage of such a configuration is that after the metal lines are bent, the bent metal lines can be pushed into the blanking opening 601 to fall into the collection box 602 and be collected together, so that the bent metal lines can be taken out in batches for transportation and storage.

[0048] See also Figure 1-Figure 9 As shown, the following optimizations are made to the turning and bending assembly 1 and the safety limit assembly 4, wherein specifically for the turning and bending assembly 1, the bending groove 102 is a through groove in the horizontal direction, and the bending punch 101 and the bending die 103 are level at both ends in the horizontal direction, so that the bending punch 101 and the bending die 103 have a good comparison effect, and are convenient for accurately bending the metal wire. At the same time, the cross-sectional shapes of the lower part of the bending punch 101 and the bending groove 102 along the longitudinal vertical plane are both V-shaped, and due to such a setting, it is ensured that an L-shaped metal wire edge trimming workpiece can be processed and manufactured.

[0049] Specifically for the safety limit assembly 4, the limit nuts 403 are all hexagonal nuts and the outer peripheries do not interfere with the bending punch 101. The top of the limit stud 402 is coaxially fixed to the end 401 for convenient holding and applying force. Preferably, the end 401 is an outer hexagonal shape and the outer periphery does not interfere with the bending punch 101. The purpose of this arrangement is, first of all, to prevent the limit nut 403 from being unable to be smoothly screwed, resulting in the limit nut 403 being unable to be smoothly pressed against the surface of the safety wing plate. At the same time, by holding the end 401, force can be directly applied to screw the limit stud 402 for forward and reverse adjustment.

[0050] See also Figure 1-Figure 9As shown, the positioning and limiting component 5 and the base cabinet 3 are optimized as follows, specifically for the positioning and limiting component, the slide groove 503 is a dovetail groove or an I-shaped groove, preferably the rear end of the slide groove 503 is open, and the top surface of the movable seat 502 is not lower than the top of the slide groove 503. The reason for this arrangement is to facilitate the movable seat 502 to only slide longitudinally along the slide groove 503 and cannot escape from other directions, and at the same time to facilitate the smooth installation of the limiting back plate 508 on the top surface of the movable seat 502 through the connecting plate 507, and the optional connecting plate 507 is an L-shaped plate and the vertical part and the horizontal part are respectively connected to the back of the limiting back plate 508 and the top surface of the movable seat 502. With this arrangement, it is convenient for the limiting back plate 508 to be stably fixed on the top surface of the movable seat 502 through the connecting plate 507 and maintain a horizontal vertical setting state. The elastic pressure block 5011 can be further optionally a circular rubber block with an outer diameter smaller than the inner diameter of the mounting hole 504, and a handle 506 is coaxially fixed to the top of the clamping stud 505 for easy holding. The advantage of such a setting is that, firstly, the elastic pressure block 5011 can be pressed on the bottom of the slide groove 503 and elastically deformed to stably lock the movable seat 502 so that it cannot slide along the slide groove 503. At the same time, the elastic deformation of the elastic pressure block 5011 can also prevent the bottom of the slide groove 503 from being crushed and damaged. Moreover, since a handle 506 is provided on the top of the clamping stud 505, the clamping stud 505 can be smoothly driven to perform forward and reverse adjustments by applying force by holding the handle 506.

[0051] At the same time, the bottom surface of the mounting wing plate 104 without the safety limit assembly 4 is vertically fixed with the limit side plate 509, and the limit side plate 509 is in contact with the side end surfaces of the bending punch 101 and the bending die 103 but is not fixed, the operating table body 2 is vertically opened to the guide opening 5010 at the position corresponding to the limit side plate 509, and the lower part of the limit side plate 509 passes through the guide opening 5010 in a vertical sliding fit manner; the limit back plate 508 and the limit side plate 509 are rectangular long strips arranged horizontally and vertically respectively, and the horizontal and vertical ends of the limit back plate 508 are respectively arranged vertically. The width of the side plate 509 is not less than the lateral width of the bending die 103, and the longitudinal width of the limiting side plate 509 is not greater than the longitudinal width of the bending die 103. The effect of such a setting is that the limiting side plate 509 can first block and limit the side end position of the metal line during the placement process, and at the same time, the limiting side plate 509 can guide and correct the descent of the bending punch 101 by vertically sliding along the guide opening 5010, and ensure that the size of the limiting back plate 508 and the limiting side plate 509 can block and limit the metal line from the back and side respectively. Specifically, with respect to the bottom cabinet 3, a cabinet door 301 that can be opened and closed is installed in front of the bottom cabinet 3. Preferably, the cabinet door 301 that can be opened and closed horizontally is installed in the bottom cabinet 3 to facilitate the placement of the collection box 602 in the bottom cabinet 3 and the later removal of the collection box 602 from the bottom cabinet 3.

[0052] With the above structure, specifically in the process of bending the metal line, since the positioning and limiting components 5 for limiting the position of the metal line when it is bent are installed at the rear and side positions of the flip-bending component 1, in the process of placing the metal line on the top of the flip-bending component 1, the positioning and limiting components 5 can accurately limit the metal line to the top surface of the bending die 103 and align the crease position with the bottom edge of the bending punch 101 vertically, thereby achieving accurate limiting of the crease position of the metal line, replacing the crease limit control method of observation and correction by the operator, which is beneficial to improving the bending efficiency of the metal line and reducing the defective rate of the metal line bending process. Specifically, in the operation, the crease position marking line that has been marked The metal line is placed flat on the top surface of the bending die 103, so that one end of the metal line is against the side end surface of the limiting side plate 509, so that the limiting side plate 509 of the positioning limiting component 5 can block and limit the side end position of the metal line during the placement process, and then the clockwise rotation of the clamping stud 505 makes the elastic clamping block 5011 rise and leave the bottom of the slide groove 503, and then the moving seat 502 is pushed to move to the crease mark position by sliding along the slide groove 503 longitudinally and horizontally comparing it with the bottom edge of the bending groove 102, and then the moving seat 502 is kept stationary and the clamping stud 505 is reversed counterclockwise to make the elastic clamping block 5011 at the bottom press against the bottom of the slide groove 503, so as to lock the moving seat 502 from sliding along the slide groove 503, and then lock the limit. The back plate 508 blocks and limits the metal line from the rear, so that the limiting back plate 508 of the positioning and limiting component 5 can block and limit the rear position of the metal line during the placement process, and then the limiting side plate 509 and the limiting back plate 508 can block and limit from the side and the rear respectively, so that the folding position of the metal line can be quickly limited to be vertically aligned with the bottom edge of the bending punch 101. The positioning and limiting operation of the folding position of the metal line is simple and easy to implement, which is convenient for realizing accurate limitation of the folding position of the metal line. At the same time, because the movable seat 502 of the positioning and limiting component 5 slides longitudinally along the slide groove 503 and the elastic pressing block 5011 is pressed against the bottom of the slide groove 503 by screwing the clamping stud 505, the limiting back plate 508 can be The front and rear positions are adjusted and locked, so that the position of the limiting back plate 508 can be adjusted when it is blocked and limited, which is convenient for limiting the crease position of metal lines with different longitudinal widths, thereby improving the general use range of the positioning and limiting component 5. After the crease limit operation of the metal line is completed, the cylinder body 107 is ventilated by connecting to the external air supply pipeline. The cylinder body 107 drives the bending punch 101 to descend by the inward retraction of the push rod 106. During the descent process, the bending punch 101 cooperates with the bending groove 102 to bend the metal line with the top surface of the bending die 103 placed flat, so as to process and produce an L-shaped metal line edge finishing workpiece. In the process of bending the metal line by the flipping bending component 1,Since the mounting wing plate 104 on one side of the flip and bending component 1 is fixedly provided with a safety limit component 4 for limiting the descending distance of the flip and bending component 1, the descending distance of the bending punch 101 can be limited by the bottom end of the limit stud 402 of the safety limit component 4 contacting the top surface of the operating table body 2, and then the bending punch 101 can be prevented from descending too low and damaging the crease position of the metal line by limiting the descending distance of the bending punch 101, which is beneficial to improving the product quality after the metal line is bent. At the same time, specifically with respect to the safety limit component 4, since the position height of the bottom end of the limit stud 402 can be adjusted by twisting the limit stud 402, the bottom end of the limit stud 402 can be adjusted to a suitable safety limit position according to the thickness of the metal line to be bent, thereby improving the adaptability and flexibility of the safety limit component 4 during use. Specifically, in the adjustment operation of the limit stud 402, when no metal line is placed on the top surface of the bending die 103, the limit stud 402 can be adjusted to a suitable safety limit position according to the thickness of the metal line to be bent. After the bending punch 101 is lowered to the bottom and fully matched with the bending groove 102, it remains stationary, and then the limiting stud 402 is screwed down to the bottom end to contact the top surface of the operating table body 2, and then the limiting stud 402 is screwed up to rise until the distance between the bottom end of the limiting stud 402 and the top surface of the operating table body 2 is equal to the thickness of the metal line to be bent. The distance between the bottom end of the limiting stud 402 and the top surface of the operating table body 2 can be compared and adjusted by horizontally padding the metal line to be bent, so that the adaptability adjustment of the safety limiting component 4 is completed. After the bending operation of the metal line is completed, since a workpiece collection component 6 for collecting the bent metal line is provided at the front position of the flip bending component 1, after the metal line is bent, the bent metal line can be pushed into the blanking opening 601 so that the bent metal line can fall into the collection box 602 and be collected in a centralized manner, thereby realizing the centralized collection of the bent metal lines, and facilitating the centralized removal of the bent metal lines in batches for transportation and storage.

[0053] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A metal wire bending machine, comprising an operating table body (2) and a bottom cabinet (3), characterized in that: The operating table body (2) is arranged horizontally, the bottom surface of the operating table body (2) is fixedly mounted with the bottom cabinet (3) with an open top, and a storage horizontal board (302) is fixedly arranged in the middle of the bottom cabinet (3); A turning and bending assembly (1) for turning and bending the metal wire is installed in the middle of the top surface of the operating table body (2), and part of the turning and bending assembly (1) is fixedly installed on the top surface of the storage horizontal plate (302), and a safety limit assembly (4) for limiting the descending distance of the turning and bending assembly (1) is installed on one side of the turning and bending assembly (1); The operating table body (2) is provided with a positioning and limiting component (5) installed at the rear and side of the flipping and bending component (1) for limiting the position of the metal wire when it is bent and placed; The operating table body (2) is provided with a workpiece collecting assembly (6) for collecting bent metal wires at a front position of the flipping and bending assembly (1).

2. A metal wire bending machine according to claim 1, characterized in that: The flip bending assembly (1) comprises a bending die (103), a bending punch (101) and a cylinder body (107); the bending die (103) is fixed in the middle of the top surface of the operating table body (2) in the transverse direction, and the bending groove (102) at the top of the bending die (103) is arranged in the transverse direction; the bending punch (101) is arranged in the transverse direction above the bending die (103); the lower part of the bending punch (101) and the bending groove (102) are vertically opposite and can be matched with each other; mounting wing plates (101) are horizontally extended and fixed on both sides of the bending punch (101); 4), and the mounting wing plate (104) at one side is installed with the safety limit assembly (4), and the mounting wing plate (104) at the other side is connected to a portion of the positioning limit assembly (5), the cylinder body (107) is vertically fixed on both sides of the top surface of the storage cross plate (302), the push rod (106) at the top of the cylinder body (107) is vertically arranged and passes through the top surface of the operating table body (2) in a sliding fit, and the top end of the push rod (106) is connected to the bottom surface of the mounting wing plate (104) at the corresponding side through a connecting sleeve (105).

3. A metal wire bending machine according to claim 2, characterized in that: The bending groove (102) is a through groove in the transverse direction, and the bending punch (101) and the bending die (103) are flush at both ends in the transverse direction; the cross-sectional shapes of the lower part of the bending punch (101) and the bending groove (102) along the longitudinal vertical plane are both V-shaped.

4. A metal wire bending machine according to claim 3, characterized in that: The safety limit assembly (4) comprises a limit stud (402) and a limit nut (403); the mounting wing plate (104) at one side is engaged with and interspersed with the limit stud (402) in a vertical threaded manner; and the portions of the limit stud (402) extending out from the top and bottom surfaces of the mounting wing plate (104) are coaxially engaged with the limit nut (403).

5. A metal wire bending machine according to claim 4, characterized in that: The limiting nuts (403) are all hexagonal nuts and their peripheries do not interfere with the bending punch (101). The top end of the limiting stud (402) is coaxially fixed with the end head (401) for convenient holding and applying force.

6. A metal wire bending machine according to any one of claims 2 to 5, characterized in that: The positioning and limiting assembly (5) comprises a fixed seat (501) and a movable seat (502); the fixed seat (501) is fixed to the top surface of the operating table body (2) at a position behind the bending die (103) in the longitudinal direction; a slide groove (503) is provided on the top surface of the fixed seat (501) in the longitudinal direction; the slide groove (503) is slidably matched with the movable seat (502) in the longitudinal direction; the front portion of the top surface of the movable seat (502) is fixedly mounted via a connecting plate (507) There is a limit back plate (508) vertically arranged along the horizontal direction, and the top surface of the limit back plate (508) is not lower than the top surface of the bending die (103). A mounting hole (504) is vertically opened at the rear of the top surface of the movable seat (502). The mounting hole (504) is a through hole and a clamping stud (505) is vertically engaged and inserted therethrough. At the same time, an elastic pressure block (5011) made of a buffer material is coaxially fixed to the bottom end of the clamping stud (505) near the bottom of the slide groove (503).

7. A metal wire bending machine according to claim 6, characterized in that: The slide groove (503) is a dovetail groove or an I-shaped groove, and the top surface of the movable seat (502) is not lower than the top of the slide groove (503); the connecting plate (507) is an L-shaped plate, and the vertical part and the horizontal part are respectively connected to the back side of the limiting back plate (508) and the top surface of the movable seat (502).

8. A metal wire bending machine according to claim 7, characterized in that: The elastic pressing block (5011) is a circular rubber block with an outer diameter smaller than the inner diameter of the mounting hole (504); a handle (506) for easy holding is coaxially fixed to the top end of the clamping stud (505).

9. A metal wire bending machine according to claim 7 or 8, characterized in that: A limiting side plate (509) is vertically fixed to the bottom surface of the mounting wing plate (104) on which the safety limiting assembly (4) is not installed, and the limiting side plate (509) contacts but is not fixed to the side end surfaces of the bending punch (101) and the bending die (103) at a position close to the limiting side plate (5010), and the lower part of the limiting side plate (509) passes through the guiding opening (5010) in a vertical sliding manner; the limiting back plate (508) and the limiting side plate (509) are rectangular long strips arranged horizontally and vertically respectively, and the horizontal width of the limiting back plate (508) is not less than the horizontal width of the bending die (103), and the vertical width of the limiting side plate (509) is not greater than the vertical width of the bending die (103).

10. A metal wire bending machine according to claim 9, characterized in that: A cabinet door (301) capable of opening and closing is installed in front of the base cabinet (3); the workpiece collecting assembly (6) comprises a blanking opening (601) and a collecting box (602); the operating table body (2) is provided with a blanking opening (601) vertically and horizontally in front of the bending die (103) to allow the bent metal wire to smoothly fall into the base cabinet (3); the collecting box (602) is placed on the top surface of the storage horizontal plate (302) at a position above the blanking opening (601), and the cylinder body (107) and the limiting side plate (509) do not interfere with the position of the collecting box (602).

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