Auxiliary feeding frame for bending machine

Abstract

The utility model belongs to the technical field of ancillary facilities of metal plate bending machines, and discloses an auxiliary feeding frame for a bending machine, which is arranged on the outer side of a die bearing table of a main machine of the bending machine and comprises an L-shaped support, a rolling wheel frame, rolling wheels and an outer supporting assembly. The vertical plate is mounted on the countersunk head sliding block of the sliding groove of the mold bearing table through a first bolt; the roller frame is horizontally installed on a top plate of the L-shaped support, a plurality of rollers used for supporting the bottom face of a plate workpiece in a rolling mode are arranged at the top of the roller frame at equal intervals in the length direction of the roller frame, and the long edge direction of the roller frame is perpendicular to the mold bearing table; the bottom end of the outer supporting assembly is supported on the workshop ground, and the top end is supported on the bottom face of the cantilever end of the L-shaped support. According to the feeding frame, a two-point installation mode is adopted for effectively supporting the bending machine main machine frame and the far end, the supporting capacity of the feeding frame is improved, and a large-area plate workpiece can be effectively supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal bending machine accessory technology field especially, relates to a kind of auxiliary feeding frame for bending machine. BACKGROUND

[0002] Bending machine is a kind of machine that can bend thin steel plate, and it mainly includes a die carrier, a lower die fixed on the die carrier, and an upper die fixed on the punch of the bending machine. An upper material loading workbench is often used to assist material loading during the material loading process on the bending machine. When the applicant performs the bending process of the lamp pole pipe, it is found that the existing auxiliary material loading workbench cannot effectively support large-area sheet metal workpieces when bending relatively large sheet metal workpieces. In order to prevent the corners of the sheet metal from sinking downward and affecting the bending accuracy, multiple workers are often needed to flatten the sheet metal workpiece and maintain it. The workers spend a lot of time and effort to flatten the workpiece and it is difficult to ensure the horizontal level of the workpiece, which leads to the bending angle of the workpiece not meeting the standard. In addition, it is difficult to drag the steel plate on the workbench to align with the bending knife position.

[0003] The utility model patent with publication number CN210208175U discloses an auxiliary support for a bending machine, which is arranged on a bending machine frame and includes a fixing member arranged at the front end of the bending machine frame. A support support is arranged on the fixing member. The support support includes a connecting seat arranged on the fixing member and a lifting assembly. A limiting hole is formed in the connecting seat in the vertical direction. The lifting assembly includes a lifting rod arranged in the limiting hole and a support plate arranged on the upper end of the lifting rod. A limiting assembly for fixing the lifting rod is arranged on the connecting seat. The patent technical solution directly installs the auxiliary support on the bending machine frame and can be lifted. However, due to the shaft sleeve type installation of the connecting seat, the supporting force is limited, and the triangular short frame body cannot effectively support large-area sheet metal workpieces.

[0004] The utility model patent with publication number CN215467633U discloses an adjustable auxiliary material loading workbench, which is also installed on the front side bottom of the bending machine main body by means of a horizontal sliding block. The distal end also does not have a load-bearing support, so it cannot effectively support large-area sheet metal workpieces.

[0005] Therefore, it is necessary to develop an auxiliary feeding frame for a bending machine to address the above-mentioned defects. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of auxiliary feeding frame for bending machine, and two-point type installation is used in bending machine mainframe and distal end Effective support is carried out, the supporting capacity of feeding frame is improved, and large-area sheet metal workpieces can be effectively supported.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions: Therefore, it is necessary to develop an auxiliary feeding frame for a bending machine to address the above-mentioned defects.

[0008] The utility model bending machine uses auxiliary material feeding frame, sets up in the die bearing platform outside of bending machine host computer, including L type support, gyro wheel frame, gyro wheel and outer support subassembly, the one end of L type support towards the die bearing platform is set up as the vertical board, the vertical board passes through first bolt installation on the countersunk head sliding block of die bearing platform sliding groove, gyro wheel frame horizontal installation on the top plate of L type support, a plurality of for rolling support plate material workpiece bottom surface gyro wheel along gyro wheel frame length direction equal interval interval setting on its top, gyro wheel frame long edge direction is perpendicular to the die bearing platform, outer support subassembly bottom end support on the workshop ground and top end support on the L type support cantilever end bottom surface.

[0009] Further, two symmetrical first waist type holes are formed on the vertical plate along the vertical direction, the first bolt passes through the first waist type hole and is connected to the countersunk head sliding block in the die bearing platform sliding groove; the outer support subassembly can adjust the support height.

[0010] Further, the outer support subassembly includes a double-headed screw and an outer leg, a threaded sleeve is arranged on the cantilever end bottom surface of the L-shaped support, the double-headed screw is vertically arranged and is threadedly connected into the hole in the threaded sleeve at the top end, the double-headed screw is threadedly connected into the threaded hole in the top plate of the outer leg at the bottom end, and the outer leg is supported on the workshop ground.

[0011] Further, lock nuts are threadedly connected to the reverse threaded sections of the upper and lower sections of the double-headed screw, respectively, and the two lock nuts are locked to the bottom surface of the threaded sleeve and the top surface of the top plate of the outer leg, respectively.

[0012] Further, a light rod section is arranged at the middle of the double-headed screw, and a wrench slot is arranged on the light rod section for facilitating insertion of an open-end wrench.

[0013] Further, the gyro wheel frame includes a U-shaped groove frame and a bottom plate, the U-shaped groove frame is arranged with the opening upward and is welded to the bottom plate at the center of the bottom surface, and the bottom plate is installed on the top plate of the L-shaped support through the second bolts at the four corner positions.

[0014] Further, a second waist type hole is formed in the bottom plate at the position of the second bolt installation, and the long edge direction of the second waist type hole is along the long edge direction of the gyro wheel frame.

[0015] Further, an insertion slot is formed in the top edge of the side wall of the U-shaped groove frame, and a plurality of insertion slots are arranged at equal intervals along the long edge direction of the gyro wheel frame; and the gyro wheel shaft ends are clamped in the insertion slots.

[0016] Further, flat tables are milled on the gyro wheel shaft ends, the two flat tables are symmetrically arranged, and the flat tables are vertically inserted into the insertion slots.

[0017] Compared with the prior art, the bending machine auxiliary feeding frame has the beneficial technical effects that:

[0018] The auxiliary feeding frame for the bending machine is provided with an outer supporting assembly at the lower end of the cantilever of the L-shaped support, thereby improving the auxiliary supporting strength and increasing the length of the roller frame, and the auxiliary feeding frame is suitable for use in bending large-area plate workpieces. The roller frame is detachably installed on the top plate of the L-shaped support, which is convenient for replacing roller frames of different lengths and convenient for maintenance. The auxiliary feeding frame for the bending machine is supported at the main machine rack and the far end by a two-point installation mode, thereby improving the supporting capacity of the feeding frame and effectively supporting large-area plate workpieces.

[0019] In addition, the first bolt is installed through the first waist-shaped hole, and the supporting height of the outer supporting assembly is adjusted, so that the height can be conveniently adjusted and adapted after the main machine of the bending machine is replaced by a lower die of different height. The double-head screw rod is provided, the double-head screw rod is rotated to adjust the distance between the bottom surface of the threaded sleeve and the top surface of the outer supporting leg top plate, and the supporting height is adjusted. The lock nuts are threadedly connected to the opposite threaded sections of the double-head screw rod, so that the adjusted double-head screw rod is locked to prevent the supporting height from changing due to loosening. The wrench slot is arranged on the middle rod section of the double-head screw rod, so that the operator can conveniently adjust. The second bolt is inserted through the second waist-shaped hole in the bottom plate, so that the front and rear positions of the roller frame can be adjusted, and the lower die of different widths can be replaced and adjusted. The roller shaft end is installed in the top-end opening insertion slot formed in the top edge of the side wall of the U-shaped groove frame, and the roller can be installed and removed by only being inserted and pulled out, thereby greatly improving the dismounting efficiency compared with the hole installation mode. The flat table is machined on the roller shaft end, the flat table is clamped in the insertion slot to prevent the roller shaft from rotating, and the roller part rotates relative to the roller shaft, thereby making the operation more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described in connection with the drawings.

[0021] Figure 1 Fig. 1 is a front view of a bending machine using the auxiliary feeding frame of the utility model;

[0022] Figure 2 Fig. 2 is a front view of the auxiliary feeding frame of the utility model;

[0023] Figure 3 Fig. 3 is a right view of the auxiliary feeding frame of the utility model;

[0024] Figure 4 Fig. 4 is a top view of the auxiliary feeding frame of the utility model.

[0025] Figure 5 It is the three-dimensional structure schematic diagram of the roller in the utility model.

[0026] The number 1 is L type bottom frame, 101 is first waist type hole, 102 is tensile bar plate, 103 is threaded sleeve, 2 is roller frame, 201 is bottom plate, 202 is insertion slot, 203 is second waist type hole, 3 is roller, 301 is roller shaft, 302 is flat table, 4 is double head screw rod, 401 is spanner slot, 5 is outer support leg, 6 is first bolt, 7 is second bolt, 8 is bending machine main machine, 801 is mould bearing table. DETAILED DESCRIPTION

[0027] The core of the utility model is to provide a kind of auxiliary feeding frame for bending machine, adopt two-point installation mode to effectively support in bending machine main machine rack and far end, improve the supporting capacity of feeding frame, can effectively support large area sheet metal workpiece.

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0029] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as the limitation of the utility model.

[0030] Referring to the drawings, Figure 1 It is the main view structural schematic diagram of bending machine for applying the auxiliary feeding frame of the utility model bending machine; Figure 2 It is the main view structural schematic diagram of the auxiliary feeding frame of the utility model bending machine; Figure 3 It is the right view structural schematic diagram of the auxiliary feeding frame of the utility model bending machine; Figure 4 It is the overhead view structural schematic diagram of the auxiliary feeding frame of the utility model bending machine; Figure 5 It is the three-dimensional structure schematic diagram of the roller in the utility model.

[0031] In a specific embodiment, as Figures 1 to 5As shown in the utility model, the auxiliary feeding frame for bending machine is arranged outside the die bearing table 801 of the bending machine main machine 8 and is used for auxiliary supporting the plate workpiece to be bent. The auxiliary feeding frame for bending machine comprises an L-shaped support 1, a roller frame 2, rollers 3 and an outer supporting assembly. The longitudinal section of the L-shaped support 1 is L-shaped, and one end of the L-shaped support 1 facing the die bearing table 801 is arranged as a vertical plate. The vertical plate is installed on the countersunk head sliding block of the sliding groove of the die bearing table 801 through a first bolt 6. Generally, a T-shaped groove is arranged on the outer wall of the die bearing table 801 along the length direction of the lower die, a T-shaped sliding block is arranged in the T-shaped groove, and the first bolt 6 is installed in the threaded hole in the middle of the T-shaped sliding block. The roller frame 2 is horizontally installed on the top plate of the L-shaped support 1, and a plurality of rollers 3 for rolling and supporting the bottom surface of the plate workpiece are arranged at equal intervals on the top of the roller frame 2 along the length direction of the roller frame 2. The long edge direction of the roller frame 2 is perpendicular to the die bearing table 801. The bottom end of the outer supporting assembly is supported on the workshop ground in front of the bending machine main machine 8, and the top end of the outer supporting assembly is supported on the bottom surface of the cantilever end of the L-shaped support 1.

[0032] By additionally arranging the outer supporting assembly below the cantilever end of the L-shaped support 1, the auxiliary supporting strength is improved, and the length of the roller frame 2 can also be increased, thereby being suitable for bending use of large-area plate workpieces. By arranging the roller frame 2 to be detachably installed on the top plate of the L-shaped support 1, on the one hand, different lengths of the roller frame 2 can be replaced, and on the other hand, maintenance is facilitated. The auxiliary feeding frame for bending machine adopts a two-point installation mode to effectively support the bending machine main machine rack and the far end, thereby improving the supporting capacity of the feeding frame and enabling effective support of large-area plate workpieces.

[0033] In a specific embodiment of the utility model, as shown in the drawings, Figures 2-4 two symmetrical first waist-shaped holes 101 are formed in the vertical direction on the vertical plate, and the first bolt 6 is connected to the countersunk head sliding block in the sliding groove of the die bearing table 801 through the first waist-shaped hole 101. The outer supporting assembly can adjust the supporting height.

[0034] By arranging the first waist-shaped hole 101 to install the first bolt 6 and adjusting the supporting height of the outer supporting assembly, the height can be conveniently adjusted and adapted after the lower die of the bending machine main machine 8 is replaced.

[0035] Specifically, as shown in the drawings, Figure 2 and Figure 3As shown, the outer support assembly comprises a double-headed screw 4 and an outer support leg 5, and a threaded sleeve 103 is vertically welded on the bottom surface of the cantilever end of the L-shaped support 1. The double-headed screw 4 is vertically arranged below the threaded sleeve 103 and is threadedly connected into the hole in the threaded sleeve 103, and the bottom end of the double-headed screw 4 is threadedly connected into the threaded hole in the top plate of the outer support leg 5, and the outer support leg 5 is supported on the workshop ground. The threaded sleeve 103, the double-headed screw 4 and the outer support leg 5 are coaxially arranged.

[0036] Specifically, as shown in Figure 1 The threaded sleeve 103 and the vertical plate are further welded with a rib plate 102, which increases the structural strength of the L-shaped support 1.

[0037] Specifically, as shown in Figure 2 And Figure 3 The upper and lower reverse threaded segments of the double-headed screw 4 are respectively threadedly connected with lock nuts, and the thread rotation directions of the two lock nuts are opposite. The two lock nuts are respectively locked onto the bottom surface of the threaded sleeve 103 and the top surface of the top plate of the outer support leg 5.

[0038] Specifically, as shown in Figure 2 And Figure 3 The middle part of the double-headed screw 4 is provided with a smooth rod segment, and the smooth rod segment is provided with a wrench notch 401 for facilitating the insertion of an open-end wrench. That is, the width of the wrench notch 401 is matched with the opening width of the open-end wrench.

[0039] Through the arrangement of the double-headed screw 4, the distance between the bottom surface of the threaded sleeve 103 and the top surface of the top plate of the outer support leg 5 can be adjusted by rotating the double-headed screw 4, and then the support height can be adjusted. By threadedly connecting the lock nuts on the upper and lower reverse threaded segments of the double-headed screw 4, the double-headed screw 4 can be locked after adjustment, so that the support height change caused by loosening is avoided. By arranging the wrench notch 401 on the middle smooth rod segment of the double-headed screw 4, the adjustment of the operating personnel is facilitated.

[0040] In a specific embodiment of the present application, as shown in Figures 2-4 The roller frame 2 comprises a U-shaped groove frame and a bottom plate 201, the U-shaped groove frame is arranged with the opening upward and the bottom surface is welded on the bottom plate 201 in the middle, and the bottom plate 201 is installed on the top plate of the L-shaped support 1 through the second bolts 7 at four corner positions.

[0041] Specifically, as shown in Figure 4 The bottom plate 201 is provided with a second waist-shaped hole 203 at the installation position of the second bolt 7, and the long side direction of the second waist-shaped hole 203 is along the long side direction of the roller frame 2.

[0042] By arranging the second waist-shaped hole 203 on the bottom plate 201 to pass through the second bolt 7, the front and rear positions of the roller frame 2 can be adjusted, and the adjustment after replacing the lower mold with different widths is facilitated.

[0043] In the specific embodiment of the utility model, as shown in Figure 2 and Figure 4 , the top edge of the side wall of the U-shaped groove frame is provided with an insertion groove 202, and the top of the insertion groove 202 is provided with an opening. A plurality of insertion grooves 202 are arranged at equal intervals along the long edge direction of the roller frame 2. The roller shaft 301 of the roller 3 is clamped at the axial end of the insertion groove 202.

[0044] Specifically, as shown in Figure 2 , Figure 4 and Figure 5 , the axial end of the roller shaft 301 is milled to have a flat platform 302, and the two flat platforms 302 are symmetrically arranged, and the flat platform 302 is vertically inserted into the insertion groove 202.

[0045] Obviously, the axial end of the roller shaft 301 can also be milled to have a square head, which is inserted into the insertion groove 202 for installation. Similar simple replacement methods also fall within the protection scope of the utility model.

[0046] By providing the insertion groove 202 with a top opening at the top edge of the side wall of the U-shaped groove frame to install the axial end of the roller shaft 301, the installation and disassembly of the roller 3 can be realized only by inserting and pulling out, which greatly improves the disassembly efficiency compared with the hole installation method. By processing the flat platform 302 at the axial end of the roller shaft 301, the flat platform 302 is clamped in the insertion groove 202 to ensure that the roller shaft 301 does not rotate, while the roller part rotates relative to the roller shaft 301, and the operation is more stable and reliable.

[0047] The working process of the auxiliary feeding frame for the bending machine is as follows: in actual conditions, one bending machine main machine 8 corresponds to two sets of the auxiliary feeding frame for the bending machine, which are arranged at equal intervals along the length direction of the lower die. The operator controls the overhead crane to hoist the plate workpiece to the auxiliary feeding frame for the bending machine, that is, the roller 3 rolls and supports the bottom surface of the plate workpiece. The plate workpiece is dragged by hand or clamped and sent by a numerical control jaw to move to the position where it needs to be bent, and the bending operation is performed. When the lower die of different heights is replaced, the supporting height of the auxiliary feeding frame for the bending machine needs to be adjusted. The adjustment process is as follows: the first bolt 6 and the two lock nuts on the double-headed screw 4 are loosened, the L-shaped support 1 is lifted upward when it needs to be adjusted upward, the double-headed screw 4 is rotated by using an open wrench to reduce the exposed part of the double-headed screw 4, and the L-shaped support 1 is pressed downward when it needs to be adjusted downward. When the top edge height of the roller 3 is basically flat with the top edge of the lower die, the first bolt 6 is slightly tightened, the double-headed screw 4 is adaptively adjusted, and finally the first bolt 6 is tightened and the two lock nuts are tightly locked to the bottom surface of the threaded sleeve 103 and the top surface of the top plate of the outer leg 5.

[0048] In summary, the auxiliary feeding frame for bending machine, by adding the outer support assembly below the cantilever end of the L-shaped support 1, improves the auxiliary support strength, and can also increase the length of the roller frame 2, and then is suitable for large area plate workpiece bending use. By setting the roller frame 2 detachable installation on the top plate of the L-shaped support 1, on the one hand, it is convenient to replace the roller frame 2 of different lengths, and on the other hand, it is convenient to maintain. The auxiliary feeding frame for bending machine adopts two-point installation mode to effectively support the bending machine mainframe and the far end, improves the support capacity of the feeding frame, and can effectively support the large area plate workpiece. In addition, by setting the first waist-shaped hole 101 to install the first bolt 6, and adjusting the support height of the outer support assembly, the height can be conveniently adjusted and adapted after replacing the lower die of different heights of the bending machine mainframe 8. By setting the double-head screw 4, the adjustment of the distance between the bottom surface of the threaded sleeve 103 and the top surface of the outer support leg 5 can be realized by rotating the double-head screw 4, and then the adjustment of the support height is realized. By threadedly connecting the lock nut on the upper and lower reverse threaded sections of the double-head screw 4, the double-head screw 4 can be locked after adjustment, so that the support height change caused by loosening is avoided. By setting the wrench slot 401 on the middle light rod section of the double-head screw 4, it is convenient for the operator to adjust. By setting the second waist-shaped hole 203 on the bottom plate 201 to pass through the second bolt 7, the front and rear positions of the roller frame 2 can be adjusted, and it is convenient to replace the lower die of different widths for adjustment. By setting the top end opening insertion slot 202 on the top edge of the side wall of the U-shaped groove frame to install the roller shaft 301 shaft end, only insertion and extraction are needed to realize the installation and disassembly of the roller 3, which greatly improves the disassembly efficiency compared with the hole installation mode. By machining the flat table 302 on the roller shaft 301 shaft end, the flat table 302 is clamped in the insertion slot 202 to ensure that the roller shaft 301 does not rotate, and the roller part rotates relative to the roller shaft 301, and the operation is more stable and reliable.

[0049] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0050] The above-described embodiments only describe the preferred mode of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements of the technical scheme of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. An auxiliary feeding rack for a bending machine, arranged outside a mold bearing platform (801) of a bending machine main machine (8), characterized in that: The invention comprises an L-shaped bracket (1), a roller frame (2), a roller (3) and an external support assembly, wherein one end of the L-shaped bracket (1) facing the mold bearing platform (801) is set as a vertical plate, and the vertical plate is installed on the countersunk slider of the slide groove of the mold bearing platform (801) through a first bolt (6); the roller frame (2) is horizontally installed on the top plate of the L-shaped bracket (1), and a plurality of rollers (3) for rolling and supporting the bottom surface of the sheet workpiece are arranged at equal intervals on the top of the roller frame (2) along the length direction, and the long side direction of the roller frame (2) is perpendicular to the mold bearing platform (801); the bottom end of the external support assembly is supported on the workshop floor and the top end is supported on the bottom surface of the cantilever end of the L-shaped bracket (1).

2. The auxiliary feeding rack for a bending machine according to claim 1, characterized in that: Two symmetrical first waist-shaped holes (101) are provided on the vertical plate along the vertical direction, and the first bolt (6) passes through the first waist-shaped hole (101) and is connected to the countersunk slider in the slide groove of the mold support platform (801); the external support component can adjust the support height.

3. The auxiliary feeding rack for a bending machine according to claim 2, characterized in that: The outer support assembly includes a double-ended screw (4) and an outer leg (5); a threaded sleeve (103) is provided on the bottom surface of the cantilever end of the L-shaped bracket (1); the double-ended screw (4) is vertically arranged and the top end is threadedly connected to the hole in the threaded sleeve (103); the bottom end of the double-ended screw (4) is threadedly connected to the threaded hole in the top plate of the outer leg (5); and the outer leg (5) is supported on the workshop floor.

4. The auxiliary feeding rack for a bending machine according to claim 3, characterized in that: The upper and lower reverse threaded sections of the double-ended screw (4) are respectively threadedly connected with lock nuts, and the two lock nuts are respectively locked to the bottom surface of the threaded sleeve (103) and the top surface of the top plate of the outer leg (5).

5. The auxiliary feeding rack for a bending machine according to claim 4, characterized in that: A polished rod section is provided in the middle of the double-ended lead screw (4), and a wrench notch (401) is provided on the polished rod section for facilitating the insertion of an open-end wrench.

6. The auxiliary feeding rack for a bending machine according to claim 1, characterized in that: The roller frame (2) comprises a U-shaped channel frame and a bottom plate (201); the U-shaped channel frame is opened upward and the bottom surface is centrally welded to the bottom plate (201); the bottom plate (201) is mounted on the top plate of the L-shaped bracket (1) via second bolts (7) at four corners.

7. The auxiliary feeding rack for a bending machine according to claim 6, characterized in that: The bottom plate (201) is provided with a second waist-shaped hole (203) at the installation position of the second bolt (7), and the long side direction of the second waist-shaped hole (203) is along the long side direction of the roller frame (2).

8. The auxiliary feeding rack for a bending machine according to claim 6, characterized in that: An insertion groove (202) is provided on the top edge of the side wall of the U-shaped channel frame, and a plurality of the insertion grooves (202) are arranged at equal intervals along the long side direction of the roller frame (2); the shaft end of the roller shaft (301) of the roller (3) is clamped in the insertion groove (202).

9. The auxiliary feeding rack for a bending machine according to claim 8, characterized in that: A flat platform (302) is milled on the end of the roller shaft (301), and two flat platforms (302) are symmetrically arranged. The flat platforms (302) are vertically inserted into the insertion groove (202).

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