Rotary bending mechanism

Abstract

The utility model discloses a rotary bending mechanism. The rotary bending mechanism comprises a machine table main body; the material folding bearing table is provided with a material folding notch part, and the upper surface of the material folding bearing table is defined to form a material part bearing surface; the material pressing plates are fixedly arranged on the material folding bearing table in a stacked mode; a first material folding punch is formed at the position of the lower end of the upper punch piece, and a first material folding face is formed on one side of the first material folding punch; the first driving mechanism is used for driving the upper punch part to move in the vertical direction; the first arc-shaped track is formed on the machine table main body; a lower folding module; a second material folding surface is formed on the second material folding punch; the second driving mechanism is used for driving the lower material folding module to slide along the first arc-shaped track; when the second driving mechanism drives the lower material folding module to be located at the first state position, the second material folding face and the material piece bearing face are coplanar. And when the second driving mechanism drives the lower material folding module to be located at the second state position, the second material folding surface is opposite to the first material folding surface.

Description

Technical Field

[0001] This application relates to a rotary bending mechanism. Background Art

[0002] With the continuous development of electronic technology, connectors, as a medium product for transmitting signals, are increasingly widely used. Whether it is equipment for industrial production, automobiles for life and transportation, or mobile phones, computers, MP3s, etc. that people often use, connectors are an important medium element and are indispensable. Existing connectors usually include an insulator and several pins inserted into the insulator, and the electrical conductivity of the connector is determined by the pins. Therefore, the reliability of the pins is crucial, and the pins generally require a bending process during processing.

[0003] A bending machine is a device that can bend plates, etc. It usually includes a positioning machine table, a material pressing device, and a bending device; however, there are still many deficiencies in existing bending devices. For example, the rotary design of the bending mechanism is not good enough, resulting in a poor bending effect of the product; at the same time, the installation of some bending dies is not stable and is prone to falling off; in addition, the folding plate for installing the bending die is not designed skillfully enough, and some are too heavy, increasing the pressure on the machine operation; this will directly affect the quality of the product.

[0004] Therefore, it is necessary to study a new rotary bending mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this application is to propose a new rotary bending mechanism to solve the deficiencies existing in the prior art.

[0006] To achieve the above purpose, this application provides the following technical solutions:

[0007] A rotary bending mechanism includes:

[0008] A machine table main body;

[0009] A material folding and carrying table, fixed on the machine table main body. A material folding notch is formed on one side of the material folding and carrying table, and the upper surface of the material folding and carrying table defines a material piece carrying surface;

[0010] A material pressing plate, stacked and fixed on the material folding and carrying table;

[0011] An upper punch member, assembled on the machine table main body so as to be movable in the up and down direction. A first material folding punch is formed at the lower end position of the upper punch member, and a first material folding surface facing one side of the material folding notch is formed;

[0012] A first driving mechanism, fixed on the machine table main body, for driving the upper punch member to move in the up and down direction;

[0013] The first arc-shaped track is formed on the machine body main body;

[0014] The lower blanking module is movably assembled on the machine body main body, and the lower blanking module is located below the upper punch part;

[0015] The second blanking punch is formed on the lower blanking module, and the second blanking punch is formed with a second blanking surface;

[0016] The second driving mechanism is assembled on the machine body main body and is used to drive the lower blanking module to slide along the first arc-shaped track;

[0017] When the second driving mechanism drives the lower blanking module to be in the first state position, the second blanking surface is coplanar with the workpiece bearing surface, or the second blanking surface is located below the extension surface where the workpiece bearing surface is located;

[0018] When the second driving mechanism drives the lower blanking module to be in the second state position, the second blanking surface faces the first blanking surface.

[0019] Furthermore, the included angle formed between the first blanking surface and the workpiece bearing surface is less than 90 degrees and greater than 75 degrees.

[0020] Furthermore, the first driving mechanism drives the upper punch part to move upward beyond the upper end of the bent product.

[0021] Furthermore, the machine body main body includes two support plates that are opposite and spaced apart in the left-right direction, and the first arc-shaped track is recessed and formed on the relative inner side surfaces of each support plate;

[0022] The lower blanking module is located between the two support plates, and two sliding pins are fixedly provided on each side of the lower blanking module, and the sliding pins slide and protrude into the first arc-shaped track.

[0023] Furthermore, the sliding stop member is fixedly provided in the shape of a crossbeam at the rear end positions of the two support plates;

[0024] When the second driving mechanism drives the lower blanking module to be in the first state position, the stop member stops the lower blanking module.

[0025] Furthermore, the shaft connection part is shaft-connected to the lower blanking module, and the shaft connection part can rotate relative to the lower blanking module;

[0026] The second driving mechanism is a linear motor or a linear cylinder, and the rotatable shaft of the second driving mechanism is assembled between the two support plates;

[0027] The connecting shaft has one end connected to the output shaft of the second driving mechanism and the other end connected to the shaft connection part.

[0028] Further, the second driving mechanism is a linear motor or a linear cylinder. The rotatable shaft of the second driving mechanism is assembled between two support plates in a rotatable manner, or the rotatable shaft of the second driving mechanism is assembled on the machine body in a rotatable manner;

[0029] One end of the output shaft of the second driving mechanism is rotatably connected to the lower material folding module.

[0030] Further, a second positioning punch is formed at the lower end position of the upper punch member. At least one needle-shaped positioning pin extends downward from the second positioning punch;

[0031] The needle-shaped positioning pins are arranged at intervals from the first material folding punch and are used for inserting into the material tape positioning holes on the bent product.

[0032] Further, a fixing frame is fixedly arranged on the machine body;

[0033] A first sliding groove extends in the up and down direction on the fixing frame. The upper punch member is assembled in the first sliding groove and can slide in the up and down direction;

[0034] A second sliding groove extends in the front and back direction perpendicular to the up and down direction on the fixing frame. The second sliding groove intersects and communicates with the first sliding groove;

[0035] A guiding plug-in is assembled in the second sliding groove and can slide in the front and back direction. The first driving mechanism drives the guiding plug-in to move;

[0036] An inclined guiding track is formed on the guiding plug-in;

[0037] A guiding pin member that is in limit fit with the inclined guiding track is formed on the upper punch member. The guiding pin member can slide relatively in the inclined guiding track. The guiding plug-in slides in the front and back direction to drive the upper punch member to slide in the up and down direction.

[0038] Further, limiting notches are recessed on both sides of the upper punch member. The guiding plug-in is limited in the limiting notches in the up and down direction;

[0039] The guiding pin member is formed in the limiting notch of the upper punch member;

[0040] The inclined guiding track is a groove or a through hole formed by inward depression on the surface of the guiding plug-in.

[0041] Compared with the prior art, the beneficial effects of the present application are as follows: The rotary bending mechanism of the present application can accurately control the bending angle, and the overall structure of the rotary bending mechanism is simple and the function is stable, which is easy to manufacture. Description of the Drawings

[0042] Figure 1 This is a three-dimensional schematic diagram of the rotary bending mechanism of the present application.

[0043] Figure 2 is Figure 1 the front view of the rotary bending mechanism shown in

[0044] Figure 3 is from Figure 2 the sectional view along line A-A in

[0045] Figure 4 This is a three-dimensional exploded view of the rotary bending mechanism of the present application.

[0046] Figure 5 is Figure 3 the enlarged view of the structure within the dashed box in

[0047] Figure 6 This is a three-dimensional schematic diagram of the material folding module of the rotary bending mechanism of the present application.

[0048] Figure 7 This is a three-dimensional exploded view of the material folding module of the rotary bending mechanism of the present application.

[0049] Figure 8 This is a three-dimensional exploded view of the upper punch part of the rotary bending mechanism of the present application. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0051] For a more accurate description throughout the present application, all directions involved shall be uniformly based on Figure 1 as a reference, the direction where the X-axis is located is defined as the left-right direction; the direction where the Y-axis is located is defined as the up-down direction, where the positive direction of the Y-axis is up; the direction where the Z-axis is located is defined as the front-back direction.

[0052] Please refer to Figures 1 to 8As shown, a rotary bending mechanism disclosed in the present application. The rotary bending mechanism includes a machine table main body 10, a material folding and carrying table 1 fixed on the machine table main body 10, a pressing plate 2 stacked and fixed on the material folding and carrying table 1, an upper punch member 3 assembled on the machine table main body 10 and moving in the up and down direction, a first driving mechanism 30 fixed on the machine table main body 10 for driving the upper punch member 3 to move in the up and down direction, a lower material folding module 4 movably assembled on the machine table main body 10, a second material folding punch 41 formed on the lower material folding module 4, and a second driving mechanism 42 assembled on the machine table main body 10 for driving the lower material folding module 4 to slide. The rotary bending mechanism of the present application mainly bends metal terminal parts. The second material folding punch 41 is formed with a second material folding surface 410.

[0053] Specifically, a material folding notch portion 11 is formed on one side of the material folding and carrying table 1, and the material folding notch portion 11 is used to make way for the second material folding punch 41. The upper surface of the material folding and carrying table 1 is defined to form a material piece carrying surface 101. A first material folding punch 31 is formed at the lower end position of the upper punch member 3, and a first material folding surface 310 facing one side of the material folding notch portion 11 is formed. Please refer to Figure 1 、 Figure 3 and Figure 4 As shown, a first arc-shaped track 5 is formed on the machine table main body 10. The lower material folding module 4 is located below the upper punch member 3. The second driving mechanism 42 can drive the lower material folding module 4 to slide along the first arc-shaped track 5.

[0054] During the use of the rotary bending mechanism of the present application, first place the bending product 100 on the material piece carrying surface 101, and then stack and press it above the bending product 100 through the pressing plate 2 to form a pre-fixation. During the operation of the rotary bending mechanism, there are the following two state positions: when the second driving mechanism 42 drives the lower material folding module 4 to be in the first state position, the second material folding surface 410 is coplanar with the material piece carrying surface 101 (preferred solution in this embodiment), or the second material folding surface 410 is located below the extension surface where the material piece carrying surface 101 is located; when the second driving mechanism 42 drives the lower material folding module 4 to be in the second state position, the second material folding surface 410 faces the first material folding surface 310. The rotary bending mechanism of the present application can perform a local 90-degree bending on the bending product 100.

[0055] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 8As shown, the machine body main body 10 includes two support plates 12 that are opposite to each other and spaced apart in the left-right direction. The above-mentioned first arc-shaped track 5 is recessed and formed on the relative inner side surfaces of each of the support plates 12. The lower blanking module 4 is located between the two support plates 12. Two sliding pins 42 are fixedly provided on each side of the lower blanking module 4, and the sliding pins 42 slide and protrude into the first arc-shaped track 5, so as to guide the lower blanking module 4 to slide along the extending direction of the first arc-shaped track 5.

[0056] Furthermore, the second driving mechanism 42 is a linear motor or a linear cylinder. The rotatable shaft of the second driving mechanism 42 is pivotally assembled between the two support plates 12. For example, protruding shaft parts 421 are formed on both sides of the second driving mechanism 42, and rotating grooves (not shown) are formed on the relative inner side surfaces of the two support plates 12. The protruding shaft parts 421 are rotatably implanted into the rotating grooves, so as to realize the rotational assembly between the second driving mechanism 42 and the support plate 12. Of course, the rotating grooves can be formed on the adapter member 7 (refer to Figure 1 ), and by correspondingly fixing the adapter member to the two support plates 12, the rotational assembly between the second driving mechanism 42 and the support plate 12 is realized.

[0057] Please refer to Figures 3 to 6 As shown, the rotary bending mechanism of the present application further has a pivot part 44. The pivot part 44 is pivotally connected to the lower blanking module 4 through a rotating shaft 46. The pivot part 44 can rotate relative to the lower blanking module 4. The output shaft of the second driving mechanism 42 and the pivot part 44 are integrally connected through a connecting shaft 45, so as to realize the second driving mechanism 42 driving the lower blanking module 4. Of course, in other embodiments, one end of the output shaft of the second driving mechanism 42 can be directly pivotally connected to the lower blanking module 4, that is, the pivot part 44, the connecting shaft 45 and the output shaft of the second driving mechanism 42 are an integral part, and the same effect can also be achieved.

[0058] Please refer to in combination Figures 1 to 8As shown, the rotary bending mechanism of the present application further includes a fixing frame 6, which is fixedly arranged on the machine table main body 10 correspondingly. The fixing frame 6 is formed with a first sliding groove 61 extending in the up and down direction, and the upper punch member 3 is assembled in the first sliding groove 61 and can slide in the up and down direction. The fixing frame 6 is formed with a second sliding groove 62 extending in the front and back direction perpendicular to the up and down direction. The second sliding groove 62 intersects and communicates with the first sliding groove 61. A guiding plug-in member 63 is assembled in the second sliding groove 62, and the guiding plug-in member 63 can slide in the second sliding groove 62 in the front and back direction. / The first driving mechanism 30 drives the guiding plug-in member 63 to move. Specifically, the first driving mechanism 30 can be a linear motor or a linear cylinder. The first driving mechanism 30 is assembled and fixed above the fixing frame 6 and is linked with the guiding plug-in member 63 through a connecting member 601. An inclined guiding track 64 is formed on the guiding plug-in member 63, and a guiding pin member 33 that is in limit fit with the inclined guiding track 64 is formed on the upper punch member 3. The guiding pin member 33 can slide relatively in the inclined guiding track 64. Through the guiding pin member 33, the linkage between the guiding plug-in member 63 and the upper punch member 3 is realized, and further, the sliding of the guiding plug-in member 63 in the front and back direction is converted into the sliding of the upper punch member 3 in the up and down direction. Further, in the present application, preferably: limiting notches 34 are formed by recessing on both sides of the upper punch member 3, and the guiding plug-in member 63 is limited in the limiting notches 34 in the up and down direction. The guiding pin member 33 is formed in the limiting notch 34 of the upper punch member 3. The inclined guiding track 64 is a groove or through hole formed by inwardly recessing the surface of the guiding plug-in member 63.

[0059] Please refer to Figure 1 、 Figures 3 to 5 and Figure 8 As shown, a second positioning punch 32 is further formed at the lower end position of the upper punch member 3. The second positioning punch 32 further extends downward to form at least one needle-shaped positioning pin 320. The needle-shaped positioning pins 320 are arranged at intervals with the first folding material punch 31. The needle-shaped positioning pins 320 are used to insert into the material belt positioning holes on the bent product 100 to realize the precise positioning of the bent product 100 before bending. In addition, the rotary bending mechanism of the present application further includes a sliding stop member 43, which is fixedly arranged in a cross beam shape at the rear end positions of the two support plates 12. When the second driving mechanism 42 drives the lower folding material module 4 to be in the first state position, the stop member 43 stops the lower folding material module 4 to prevent the lower folding material module 4 from excessive displacement.

[0060] Further, please refer to Figure 3 、 Figure 5 and Figure 8As shown, the first material folding surface 310 is arranged to be slightly inclined. The specific preferred solution is that the included angle formed between the first material folding surface 310 and the material part bearing surface 101 is less than 90 degrees and greater than 75 degrees. When the second driving mechanism 42 drives the lower material folding module 4 to be in the second state position, the second material folding surface 410 faces the first material folding surface 310, and the bending product 100 is bent upward from the flat shape to a range greater than 90 degrees and less than 105 degrees (the key is that it needs to exceed 90 degrees), so that the bent section of the bending product 100 is attached to the first material folding surface 310. Then the first driving mechanism 30 drives the upper punch member 3 to move upward beyond the upper end of the bending product 100. During this process, the lower end position of the first material folding surface 310 of the upper punch member 3 performs straightening and shaping on the bent section of the bending product 100 to overcome the problem that the bending product 100 made of metal material will rebound after being bent, thereby achieving the accurate positioning of the bending angle.

[0061] The rotary bending mechanism of the present application can accurately control the bending angle, and the overall structure of the rotary bending mechanism is simple and the function is stable, which is easy to manufacture.

[0062] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary bending mechanism, characterized in that: include: Machine body; A material folding bearing platform is fixed on the machine body, a material folding notch is formed on one side of the material folding bearing platform, and an upper surface of the material folding bearing platform is defined as a material bearing surface; A material pressing plate, stacked and fixed on the material folding bearing platform; An upper punch component is arranged on the machine body and can be moved in the up-down direction. A first folding punch is formed at the lower end of the upper punch component, and a first folding surface is formed facing one side of the folding notch. The first driving mechanism is fixed on the machine body and is used to drive the upper punch to move in the up and down direction; A first arc-shaped track is formed on the machine body; A lower material folding module, the movable group of which is arranged on the machine body, and the lower material folding module is located below the upper punch component; A second folding punch is formed on the lower folding module, and the second folding punch is formed with a second folding surface; The second driving mechanism is assembled on the machine body and is used to drive the lower folding module to slide along the first arc track; When the second driving mechanism drives the lower material folding module to be in the first state position, the second material folding surface is coplanar with the material bearing surface, or the second material folding surface is located below the extension surface where the material bearing surface is located; When the second driving mechanism drives the lower material folding module to be located in a second state position, the second material folding surface is opposite to the first material folding surface.

2. The rotary bending mechanism according to claim 1, characterized in that: The angle formed between the first material folding surface and the material bearing surface is less than 90 degrees and greater than 75 degrees.

3. The rotary bending mechanism according to claim 1, characterized in that: The first driving mechanism drives the upper punch to move upward to above the uppermost end of the bent product.

4. The rotary bending mechanism according to claim 1, characterized in that: The machine body comprises two support plates which are opposite to each other and spaced apart in the left-right direction, and the opposite inner side surfaces of each support plate are concavely formed with a first arc track; The lower folding material module is located between two supporting plates. Two sliding pins are fixedly arranged on both sides of the lower folding material module. The sliding pins slide and protrude into the first arc track.

5. The rotary bending mechanism according to claim 4, characterized in that: Also includes: The sliding stopper is in the shape of a beam and fixed at the rear end of the two support plates; When the second driving mechanism drives the lower material folding module to be located in the first state position, the stop member stops the lower material folding module.

6. The rotary bending mechanism according to claim 4 or 5, characterized in that: Also includes: A shaft connection portion, shaft-connected to the lower material folding module, and the shaft connection portion can rotate relative to the lower material folding module; The second driving mechanism is a linear motor or a linear cylinder, and the second driving mechanism is rotatably connected and assembled between the two support plates; A connecting shaft has one end connected to the output shaft of the second driving mechanism and the other end connected to the shaft connection portion.

7. The rotary bending mechanism according to claim 4 or 5, characterized in that: Also includes: The second driving mechanism is a linear motor or a linear cylinder, and the second driving mechanism is rotatably connected and assembled between the two support plates, or the second driving mechanism is rotatably connected and assembled on the machine body; One end of the output shaft of the second driving mechanism is rotatably connected to the lower material folding module.

8. The rotary bending mechanism according to claim 1, characterized in that: A second positioning punch is also formed at the lower end of the upper punch member, and the second positioning punch extends downward to form at least one needle-shaped positioning pin; The needle-shaped positioning pin is spaced apart from the first folding punch and is used for being inserted into the material strip positioning hole on the bent product.

9. The rotary bending mechanism according to claim 1, characterized in that: Also includes: A fixed frame, fixedly mounted on the machine body; A first sliding groove is formed on the fixing frame extending in the up-down direction, and the upper punch is assembled in the first sliding groove and can slide in the up-down direction; A second sliding groove is formed on the fixing frame and extends along a front-to-rear direction perpendicular to the up-down direction, and the second sliding groove is cross-connected with the first sliding groove; A guide plug-in is assembled in the second sliding groove and can slide along the front-rear direction, and the first driving mechanism drives the guide plug-in to move; an inclined guide track formed on the guide insert; The upper punch component is formed with a guide pin component that is limited by the inclined guide track. The guide pin component can slide relatively in the inclined guide track. The guide plug-in component slides in the front-rear direction to drive the upper punch component to slide in the up-down direction.

10. The rotary bending mechanism according to claim 9, characterized in that: The two sides of the upper punch are recessed to form a limiting notch, and the guide plug-in is limited in the limiting notch along the up and down directions; The guide latch member is formed in the limiting notch of the upper punch member; The inclined guide track is a groove or a through hole formed by the surface of the guide plug-in unit being recessed inwardly.

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