Plate bending positioning mechanism

Abstract

The utility model provides a plate bending positioning mechanism, and belongs to the technical field of plate bending. The plate bending and positioning mechanism is installed on the bending machine, a lower die is installed on the bending machine, and the plate bending and positioning mechanism comprises a supporting frame, a first lead screw, a moving plate, a translation mechanism, a translation plate, a fixing frame, a second lead screw, a positioning plate and a positioning groove. The first lead screw is rotated to drive the moving plate to move, so that the distance between the positioning plate and the lower die is adjusted, and the positioning plate can position plates with different bending lengths; by rotating the second lead screw, the second lead screw drives the positioning plate to move up and down, so that the height of the positioning plate is adjusted, it is ensured that the positioning plate can be kept horizontal with the top faces of the lower dies with different thicknesses, then the positioning plate can be matched with the lower dies of different types to conduct bending positioning on plates, and the application range of products is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate bending, and in particular relates to a plate bending positioning mechanism. Background Art

[0002] In the related art, when a plate is bent, the plate is usually passed through a lower mold and an upper mold, and the plate is placed on the lower mold; then, the lower mold and the upper mold are matched to align the plate. When the plate passes through the lower mold and the upper mold, in order to ensure the length of the plate to be bent, the plate needs to be positioned by a positioning mechanism.

[0003] The prior art (publication number: CN220195997U) discloses a distribution cabinet plate bending and positioning mechanism, which drives the push plate and the limit plate to move through the lead screw, so that the limit plate can move on the guide rail through the slider to adjust the distance between the limit plate and the bending machine, thereby limiting the distribution cabinet plate through the limit plate, so as to improve the bending quality of the distribution cabinet plate by the bending machine. At the same time, there is no need to measure the length of the distribution cabinet plate extending out of the bending machine every time, so as to improve the bending efficiency of the distribution cabinet plate. Moreover, since the limit plate is L-shaped, when the limit plate limits the distribution cabinet plate, the limit plate also supports the distribution cabinet plate, thereby preventing the distribution cabinet plate from tilting, and further improving the bending quality of the distribution cabinet plate.

[0004] In this prior art, the distribution cabinet plate is positioned by a limit plate; however, since the height of the limit plate cannot be adjusted, when the type of the lower mold is changed, the height of the lower mold changes, and the top of the lower mold cannot remain level with the limit plate. Therefore, when the distribution cabinet plate is placed on the lower mold, the distribution cabinet cannot be placed on the limit plate, thereby reducing the applicability of the product. Utility Model Content

[0005] In order to solve the problem that the height of the limit plate cannot be adjusted in the above-mentioned prior art, when the type of the lower mold is changed, the height of the lower mold changes, and the top of the lower mold cannot be kept level with the limit plate. Therefore, when the distribution cabinet plate is placed on the lower mold, the distribution cabinet cannot be placed on the limit plate, thereby reducing the applicability of the product. The utility model provides a plate bending and positioning mechanism, which adopts the rotation of the second lead screw to drive the positioning plate to move up and down, thereby adjusting the height of the positioning plate to ensure that the positioning plate can be kept level with the top surface of the lower mold of different thicknesses, thereby realizing that the positioning plate can cooperate with different types of lower molds to bend and position the plate, so as to improve the effect of the product's applicability range. Its specific technical scheme is:

[0006] A plate bending and positioning mechanism, the plate bending and positioning mechanism is installed on a bending machine, a lower mold is installed on the bending machine, and the plate bending and positioning mechanism comprises: a support frame, a first lead screw, a movable plate, a translation mechanism, a translation plate, a fixed frame, a second lead screw, a positioning plate and a positioning groove; the support frame is L-shaped, and two support frames are respectively fixed on the bed of the bending machine; a first external thread is arranged on the outer wall of the first lead screw, and the two first lead screws are respectively embedded in the two support frames, and the two ends of the first lead screw are respectively connected to the support frame and the bed of the bending machine for rotation; a first threaded hole is arranged in the movable plate, a first internal thread is arranged in the first threaded hole, and the two movable plates are respectively embedded in the two support frames, The first lead screw passes through the first threaded hole of the movable plate; the translation mechanism is connected to the two movable plates at the same time; the translation plate is connected to the translation mechanism; the fixed frame is L-shaped, and the fixed frame is fixed on the translation plate; a second external thread is provided on the outer wall of the second lead screw, the second lead screw is embedded in the fixed frame, and the two ends of the second lead screw are respectively rotatably connected with the fixed frame and the translation plate; a second threaded hole is provided in the positioning plate, and a second internal thread is provided in the second threaded hole, at least part of the positioning plate is embedded in the fixed frame, and the second lead screw passes through the second threaded hole of the positioning plate; the positioning groove is provided at the end of the positioning plate; wherein the first external thread is adapted to the first internal thread, and the second external thread is adapted to the second internal thread.

[0007] In addition, the plate bending and positioning mechanism in the above technical solution provided by the utility model may also have the following additional technical features:

[0008] In the above technical scheme, the plate bending and positioning mechanism includes: a first optical bar and a second optical bar; the first optical bar is embedded in the support frame, and the two ends of the first optical bar are respectively connected to the support frame and the bed of the bending machine, and the first optical bar passes through the movable plate; the second optical bar is embedded in the fixed frame, and the two ends of the second optical bar are respectively connected to the fixed frame and the translation plate, and the second optical bar passes through the positioning plate.

[0009] In the above technical scheme, the translation mechanism includes: a first mounting plate, a third threaded hole and a third lead screw; the two first mounting plates are respectively fixed on the two movable plates, and the two first mounting plates are located on both sides of the translation plate; a third internal thread is arranged in the third threaded hole, and the third threaded hole is penetrated on the side wall of the translation plate; a third external thread is arranged on the outer wall of the third lead screw, and the two ends of the third lead screw are respectively rotatably connected with the two first mounting plates, and the third lead screw passes through the third threaded hole on the translation plate; wherein, the third internal thread is adapted to the third external thread.

[0010] In the above technical solution, the translation mechanism further includes: a connecting portion; the connecting portion is square and connected to the end of the third lead screw; wherein the connecting portion and the third lead screw are an integrated structure.

[0011] In the above technical solution, the translation mechanism also includes: a second mounting plate and a third optical bar; the two second mounting plates are respectively fixed on the two movable plates, and the two second mounting plates are located on both sides of the translation plate; the two ends of the third optical bar are respectively connected to the two second mounting plates, and the third optical bar passes through the translation plate.

[0012] In the above technical solution, the plate bending and positioning mechanism also includes: a synchronous wheel and a synchronous belt; the two synchronous wheels are respectively mounted on the outside of the two first screws, and the synchronous wheels are located on the outside of the support frame; the synchronous belt is simultaneously mounted on the outside of the two synchronous wheels.

[0013] In the above technical solution, the plate bending and positioning mechanism also includes: a first handwheel and a second handwheel; the first handwheel is mounted on the outside of a first screw, and the first handwheel is located on the outside of the support frame; the second handwheel is mounted on the outside of the second screw, and the second handwheel is located above the fixed frame.

[0014] In the above technical solution, the plate bending and positioning mechanism also includes: reinforcing ribs; the reinforcing ribs are triangular in shape, and two reinforcing ribs are connected to the translation plate and the fixing frame at the same time.

[0015] Compared with the prior art, the plate bending and positioning mechanism of the utility model has the following beneficial effects:

[0016] 1. By rotating the first screw, the first screw drives the movable plate to move, so as to adjust the distance between the positioning plate and the lower mold, so that the positioning plate can position the plates with different bending lengths; by rotating the second screw, the second screw drives the positioning plate to move up and down, so as to adjust the height of the positioning plate, so as to ensure that the positioning plate can keep level with the top surface of the lower mold of different thicknesses, and then the positioning plate can cooperate with different types of lower molds to bend and position the plates, so as to improve the application range of the product.

[0017] 2. By passing the first optical bar through the moving plate, the moving plate can move along the first optical bar, thereby avoiding the moving plate from shifting during movement, thereby improving the stability of the moving plate. By passing the second optical bar through the positioning plate, the positioning plate can move along the second optical bar, thereby avoiding the positioning plate from shifting during movement, thereby improving the stability of the positioning plate.

[0018] 3. By penetrating the third threaded hole on the side wall of the translation plate and passing the third lead screw through the third threaded hole of the translation plate, the third lead screw is threadedly connected to the translation plate, thereby rotating the third lead screw to drive the translation plate to move, so as to adjust the position of the translation plate and the parts on the translation plate, thereby improving the applicability of the product.

[0019] 4. By connecting the square connecting part to the end of the third screw, the staff can clamp the connecting part with a wrench, so as to rotate the connecting part to drive the third screw to rotate, thereby improving the user experience of the product.

[0020] 5. By passing the third optical bar through the translation plate, the translation plate can be moved along the third optical bar, thereby avoiding the translation plate from being offset during movement, thereby improving the stability of the translation plate movement.

[0021] 6. By respectively mounting the two synchronous wheels on the outside of the two first lead screws, and mounting the synchronous belt on the outside of the two synchronous wheels at the same time, it is achieved that when one first lead screw rotates, the first lead screw drives the other first lead screw to rotate through the two synchronous wheels and the synchronous belt, thereby achieving synchronous rotation of the two first lead screws, and then achieving synchronous movement of the two movable plates, so as to improve the stability of the movement of the translation mechanism connected to the two movable plates at the same time.

[0022] 7. By sleeved the first hand wheel on the outside of a first lead screw and placing the first hand wheel on the outside of the support frame, the first lead screw can be driven to rotate by turning the first hand wheel, thereby reducing the difficulty of rotating the first lead screw and improving the user experience of the product. By sleeved the second hand wheel on the outside of the second lead screw and placing the second hand wheel on the top of the fixed frame, the second lead screw can be driven to rotate by turning the second hand wheel, thereby reducing the difficulty of rotating the second lead screw and improving the user experience of the product.

[0023] 8. Two triangular reinforcing ribs are connected to the translation plate and the fixed frame by welding to improve the firmness of the connection between the translation plate and the fixed frame, thereby improving the overall strength of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a side view of a plate bending and positioning mechanism of the utility model;

[0025] Figure 2 for Figure 1 A local enlarged view of point A;

[0026] Figure 3 It is a top view of a plate bending and positioning mechanism of the utility model;

[0027] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names in the figure is:

[0028] 10 bending machine, 11 lower mold, 12 supporting frame, 13 first lead screw, 14 moving plate, 15 translation mechanism, 151 first mounting plate, 152 third lead screw, 153 connecting part, 154 second mounting plate, 155 third optical rod, 16 translation plate, 17 fixing frame, 18 second lead screw, 19 positioning plate, 20 positioning groove, 21 first optical rod, 22 synchronous wheel, 23 synchronous belt, 24 first hand wheel, 25 second hand wheel, 26 reinforcing rib. DETAILED DESCRIPTION

[0029] The following is a combination of specific implementation cases and attached Figure 1-Figure 3 The present invention is further described below, but the present invention is not limited to these embodiments.

[0030] A plate bending positioning mechanism, such as Figures 1 to 3 As shown, the plate bending and positioning mechanism is installed on the bending machine 10, and the lower mold 11 is installed on the bending machine 10. The plate bending and positioning mechanism includes: a support frame 12, a first lead screw 13, a movable plate 14, a translation mechanism 15, a translation plate 16, a fixed frame 17, a second lead screw 18, a positioning plate 19 and a positioning groove 20; the support frame 12 is L-shaped, and the two support frames 12 are respectively fixed on the bed of the bending machine 10; a first external thread is provided on the outer wall of the first lead screw 13, and the two first lead screws 13 are respectively embedded in the two support frames 12, and the two ends of the first lead screw 13 are respectively rotatably connected with the support frame 12 and the bed of the bending machine 10; a first threaded hole is provided in the movable plate 14, and a first internal thread is provided in the first threaded hole. The two movable plates 14 are respectively embedded in the two support frames 12, and the first threaded hole is provided with a first internal thread. A lead screw 13 passes through the first threaded hole of the movable plate 14; the translation mechanism 15 is connected to the two movable plates 14 at the same time; the translation plate 16 is connected to the translation mechanism 15; the fixing frame 17 is L-shaped, and the fixing frame 17 is fixed on the translation plate 16; a second external thread is provided on the outer wall of the second lead screw 18, and a second internal thread is provided in the second threaded hole. The second lead screw 18 is embedded in the fixing frame 17, and the two ends of the second lead screw 18 are rotatably connected with the fixing frame 17 and the translation plate 16 respectively; a second threaded hole is provided in the positioning plate 19, at least a part of the positioning plate 19 is embedded in the fixing frame 17, and the second lead screw 18 passes through the second threaded hole of the positioning plate 19; the positioning groove 20 is provided at the end of the positioning plate 19; wherein, the first external thread is adapted to the first internal thread, and the second external thread is adapted to the second internal thread.

[0031] By fixing the L-shaped support frame 12 on the bed of the bending machine 10, embedding the first lead screw 13 into the support frame 12, and connecting the two ends of the first lead screw 13 to the support frame 12 and the bed of the bending machine 10 respectively, so that the support frame 12 and the bed of the bending machine 10 cooperate to support the first lead screw 13, so that the first lead screw 13 can rotate in the support frame 12; by embedding the moving plate 14 into the support frame 12, and passing the first lead screw 13 through the first threaded hole of the moving plate 14, so that the first lead screw 13 and the moving plate 14 are threadedly connected, so that the first lead screw 13 is rotated, so that the first lead screw 13 drives the moving plate 14 to move, so as to adjust the distance between the moving plate 14 and the bed of the bending machine 10. By connecting the translation mechanism 15 to the two moving plates 14 at the same time, and connecting the translation plate 16 to the translation mechanism 15, so that the two moving plates 14 can drive the translation mechanism 15 and the translation plate 16 to move. By fixing the L-shaped fixing frame 17 on the translation plate 16, embedding the second lead screw 18 into the fixing frame 17, and rotatably connecting the two ends of the second lead screw 18 to the fixing frame 17 and the translation plate 16 respectively, the fixing frame 17 and the translation plate 16 cooperate to support the second lead screw 18, so that the second lead screw 18 can rotate in the fixing frame 17; by embedding at least a part of the positioning plate 19 into the fixing frame 17, and passing the second lead screw 18 through the second threaded hole of the positioning plate 19, so that the second lead screw 18 is threadedly connected with the positioning plate 19, so that the second lead screw 18 is rotated, so that the second lead screw 18 drives the positioning plate 19 to move up and down, thereby adjusting the height of the positioning plate 19; by setting the positioning groove 20 at the end of the positioning plate 19, the plate to be bent can be embedded in the positioning groove 20, so that the positioning plate 19 can support and position the plate.

[0032] When the product is used specifically, the two first lead screws 13 are first rotated at the same time, so that the two first lead screws 13 respectively drive the two movable plates 14 to move toward the direction of the bending machine 10, so that the positioning plate 19 is close to the lower mold 11 installed on the bending machine 10; then, the second lead screw 18 is rotated, and the second lead screw 18 drives the positioning plate 19 to move up and down, so that the bottom surface of the positioning groove 20 is level with the top surface of the lower mold 11 installed on the bending frame; then, the two first lead screws 13 are rotated in the opposite direction at the same time, so that the two first lead screws 13 respectively drive the two movable plates 14 to move away from the bending machine 10, so as to adjust the distance between the positioning plate 19 and the lower mold 11; the distance between the positioning plate 19 and the lower mold 11 is the distance of the plate to be bent; then, the plate is placed on the lower mold 11 and in the positioning groove 20 at the same time, and the plate is in contact with the positioning plate 19, so as to support and position the positioning plate 19.

[0033] By adopting the above structure, the first screw 13 is rotated to drive the movable plate 14 to move, so as to adjust the distance between the positioning plate 19 and the lower mold 11, so that the positioning plate 19 can position the plates with different bending lengths; the second screw 18 is rotated to drive the positioning plate 19 to move up and down, so as to adjust the height of the positioning plate 19 to ensure that the positioning plate 19 can maintain level with the top surface of the lower mold 11 of different thicknesses, thereby enabling the positioning plate 19 to cooperate with different types of lower molds 11 to bend and position the plates, thereby improving the application range of the product.

[0034] In the embodiments of the present invention, Figures 1 to 3 As shown, the plate bending and positioning mechanism includes: a first optical bar 21 and a second optical bar; the first optical bar 21 is embedded in the support frame 12, and the two ends of the first optical bar 21 are respectively connected to the support frame 12 and the bed of the bending machine 10, and the first optical bar 21 passes through the movable plate 14; the second optical bar is embedded in the fixed frame 17, and the two ends of the second optical bar are respectively connected to the fixed frame 17 and the translation plate 16, and the second optical bar passes through the positioning plate 19.

[0035] By embedding the first optical bar 21 into the support frame 12, and connecting the two ends of the first optical bar 21 to the support frame 12 and the bed of the bending frame respectively, the support frame 12 and the bending machine 10 can cooperate to support the first optical bar 21, thereby improving the stability of the first optical bar 21; by passing the first optical bar 21 through the moving plate 14, the moving plate 14 can move along the first optical bar 21, thereby avoiding the displacement of the moving plate 14 during movement, thereby improving the stability of the movement of the moving plate 14. By embedding the second optical bar into the fixed frame 17, and connecting the two ends of the second optical bar to the fixed frame 17 and the translation plate 16 respectively, the fixed frame 17 and the translation plate 16 can cooperate to support the second optical bar, thereby improving the stability of the second optical bar; by passing the second optical bar through the positioning plate 19, the positioning plate 19 can move along the second optical bar, thereby avoiding the displacement of the positioning plate 19 during movement, thereby improving the stability of the movement of the positioning plate 19.

[0036] In the embodiments of the present invention, Figures 1 to 3 As shown, the translation mechanism 15 includes: a first mounting plate 151, a third threaded hole and a third lead screw 152; the two first mounting plates 151 are respectively fixed on the two movable plates 14, and the two first mounting plates 151 are located on both sides of the translation plate 16; a third internal thread is arranged in the third threaded hole, and the third threaded hole is penetrated and arranged on the side wall of the translation plate 16; a third external thread is arranged on the outer wall of the third lead screw 152, and both ends of the third lead screw 152 are respectively rotatably connected with the two first mounting plates 151, and the third lead screw 152 passes through the third threaded hole on the translation plate 16; wherein, the third internal thread is adapted to the third external thread.

[0037] By fixing the two first mounting plates 151 on the two movable plates 14 respectively, and rotatably connecting the two ends of the third lead screw 152 to the two first mounting plates 151 respectively, the two first mounting plates 151 can support the third lead screw 152, so that the third lead screw 152 can rotate between the two first mounting plates 151; by penetrating the third threaded hole on the side wall of the translation plate 16, and passing the third lead screw 152 through the third threaded hole of the translation plate 16, so that the third lead screw 152 is threadedly connected to the translation plate 16, the third lead screw 152 is rotated, so that the third lead screw 152 drives the translation plate 16 to move, so as to adjust the position of the translation plate 16 and the parts on the translation plate 16, thereby improving the applicability of the product.

[0038] In the embodiments of the present invention, Figures 1 to 3 As shown, the translation mechanism 15 further includes: a connecting portion 153; the connecting portion 153 is square, and the connecting portion 153 is connected to the end of the third lead screw 152; wherein the connecting portion 153 and the third lead screw 152 are an integrated structure.

[0039] By connecting the square connecting portion 153 to the end of the third lead screw 152, a worker can clamp the connecting portion 153 with a wrench, and then rotate the connecting portion 153 to drive the third lead screw 152 to rotate, thereby improving the user experience of the product. By setting the connecting portion 153 and the third lead screw 152 as an integrated structure, the connecting portion 153 and the third lead screw 152 can be processed and formed at one time, thereby improving the connection strength between the connecting portion 153 and the third lead screw 152.

[0040] In the embodiments of the present invention, Figures 1 to 3 As shown, the translation mechanism 15 also includes: a second mounting plate 154 and a third optical bar 155; the two second mounting plates 154 are respectively fixed on the two movable plates 14, and the two second mounting plates 154 are located on both sides of the translation plate 16; the two ends of the third optical bar 155 are respectively connected to the two second mounting plates 154, and the third optical bar 155 passes through the translation plate 16.

[0041] By fixing the two second mounting plates 154 on the two movable plates 14 respectively, and connecting the two ends of the third optical bar 155 to the two second mounting plates 154 respectively, so that the two second mounting plates 154 can support the third optical bar 155, thereby improving the stability of the third optical bar 155; by passing the third optical bar 155 through the translation plate 16, so that the translation plate 16 can move along the third optical bar 155, thereby avoiding the translation plate 16 from deflecting during movement, so as to improve the stability of the movement of the translation plate 16.

[0042] In the embodiments of the present invention, Figures 1 to 3As shown, the plate bending and positioning mechanism also includes: a synchronous wheel 22 and a synchronous belt 23; the two synchronous wheels 22 are respectively mounted on the outside of the two first screws 13, and the synchronous wheels 22 are located on the outside of the support frame 12; the synchronous belt 23 is simultaneously mounted on the outside of the two synchronous wheels 22.

[0043] By respectively putting the two synchronous wheels 22 on the outside of the two first lead screws 13, and putting the synchronous belt 23 on the outside of the two synchronous wheels 22 at the same time, it is realized that when one first lead screw 13 rotates, the first lead screw 13 drives the other first lead screw 13 to rotate through the two synchronous wheels 22 and the synchronous belt 23, thereby realizing the synchronous rotation of the two first lead screws 13, and then realizing the synchronous movement of the two movable plates 14, so as to improve the movement stability of the translation mechanism 15 connected to the two movable plates 14 at the same time.

[0044] In the embodiment of the present utility model, Figures 1 to 3 As shown, the plate bending and positioning mechanism also includes: a first hand wheel 24 and a second hand wheel 25; the first hand wheel 24 is sleeved on the outside of a first screw 13, and the first hand wheel 24 is located on the outside of the support frame 12; the second hand wheel 25 is sleeved on the outside of the second screw 18, and the second hand wheel 25 is located above the fixed frame 17.

[0045] By sleeved the first hand wheel 24 on the outside of the first lead screw 13 and placing the first hand wheel 24 on the outside of the support frame 12, the first lead screw 13 can be driven to rotate by rotating the first hand wheel 24, thereby reducing the difficulty of rotating the first lead screw 13 and improving the user experience of the product. By sleeved the second hand wheel 25 on the outside of the second lead screw 18 and placing the second hand wheel 25 on the top of the fixed frame 17, the second lead screw 18 can be driven to rotate by rotating the second hand wheel 25, thereby reducing the difficulty of rotating the second lead screw 18 and improving the user experience of the product.

[0046] In the embodiment of the present utility model, Figures 1 to 3 As shown, the plate bending and positioning mechanism further includes: reinforcing ribs 26 ; the reinforcing ribs 26 are triangular in shape, and two reinforcing ribs 26 are connected to the translation plate 16 and the fixing frame 17 at the same time.

[0047] The two triangular reinforcing ribs 26 are connected to the translation plate 16 and the fixing frame 17 by welding to improve the firmness of the connection between the translation plate 16 and the fixing frame 17, thereby improving the overall strength of the product.

[0048] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A plate bending and positioning mechanism, the plate bending and positioning mechanism is installed on a bending machine, and a lower mold is installed on the bending machine, characterized in that: The plate bending and positioning mechanism comprises: A support frame, the support frame is L-shaped, and two support frames are respectively fixed on the bed of the bending machine; A first lead screw, wherein a first external thread is arranged on an outer wall of the first lead screw, two first lead screws are respectively embedded in two support frames, and two ends of the first lead screw are respectively rotatably connected to the support frame and the bed of the bending machine; A moving plate, wherein a first threaded hole is provided in the moving plate, a first internal thread is provided in the first threaded hole, the two moving plates are respectively embedded in the two supporting frames, and the first lead screw passes through the first threaded hole of the moving plate; A translation mechanism, the translation mechanism being connected to the two moving plates at the same time; A translation plate connected to the translation mechanism; A fixing frame, the fixing frame is L-shaped and is fixed to the translation plate; A second lead screw, wherein a second external thread is arranged on an outer wall of the second lead screw, the second lead screw is embedded in the fixing frame, and two ends of the second lead screw are rotatably connected to the fixing frame and the translation plate respectively; A positioning plate, wherein a second threaded hole is provided in the positioning plate, a second internal thread is provided in the second threaded hole, at least a portion of the positioning plate is embedded in the fixing frame, and the second lead screw passes through the second threaded hole of the positioning plate; A positioning groove, wherein the positioning groove is arranged at an end of the positioning plate; The first external thread is matched with the first internal thread, and the second external thread is matched with the second internal thread.

2. A plate bending and positioning mechanism according to claim 1, characterized in that: The plate bending and positioning mechanism comprises: A first optical bar, wherein the first optical bar is embedded in the support frame, two ends of the first optical bar are respectively connected to the support frame and the bed of the bending machine, and the first optical bar passes through the movable plate; The second optical bar is embedded in the fixing frame, two ends of the second optical bar are respectively connected to the fixing frame and the translation plate, and the second optical bar passes through the positioning plate.

3. A plate bending and positioning mechanism according to claim 2, characterized in that: The translation mechanism comprises: A first mounting plate, wherein two first mounting plates are respectively fixed on the two movable plates, and the two first mounting plates are located on both sides of the translation plate; a third threaded hole, wherein a third internal thread is provided in the third threaded hole, and the third threaded hole is penetrated and arranged on the side wall of the translation plate; A third lead screw, wherein a third external thread is provided on an outer wall of the third lead screw, two ends of the third lead screw are rotatably connected to the two first mounting plates respectively, and the third lead screw passes through a third threaded hole on the translation plate; Wherein, the third internal thread is matched with the third external thread.

4. A plate bending and positioning mechanism according to claim 3, characterized in that: The translation mechanism also includes: A connecting portion, the connecting portion is square and connected to an end of the third lead screw; Wherein, the connecting portion and the third lead screw are an integrated structure.

5. A plate bending and positioning mechanism according to claim 4, characterized in that: The translation mechanism also includes: A second mounting plate, wherein two second mounting plates are respectively fixed on the two movable plates, and the two second mounting plates are located on both sides of the translation plate; A third optical bar, both ends of which are respectively connected to the two second mounting plates, and the third optical bar passes through the translation plate.

6. A plate bending and positioning mechanism according to claim 1, characterized in that: The plate bending and positioning mechanism also includes: Synchronous wheels, two of which are respectively mounted on the outsides of the two first lead screws, and the synchronous wheels are located on the outside of the support frame; A synchronous belt is simultaneously sleeved on the outer sides of the two synchronous wheels.

7. A plate bending and positioning mechanism according to claim 6, characterized in that: The plate bending and positioning mechanism also includes: A first hand wheel, wherein the first hand wheel is sleeved on the outside of one of the first screws, and the first hand wheel is located on the outside of the support frame; A second hand wheel is sleeved on the outer side of the second lead screw and is located above the fixing frame.

8. A plate bending and positioning mechanism according to claim 7, characterized in that: The plate bending and positioning mechanism also includes: The reinforcing ribs are triangular in shape, and two of the reinforcing ribs are connected to the translation plate and the fixing frame at the same time.

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