Bending device and double-station bending machine applying same

Abstract

The invention discloses a bending device which comprises a rack, a feeding mechanism, a pressing mechanism and a bending mechanism. The pressing mechanism comprises a mounting frame, a lifting cylinder, a coil pressing block and a terminal pressing block; the lifting cylinder is arranged on the mounting frame and drives the coil pressing block and the terminal pressing block to lift; the bending mechanism comprises a driving part, a transmission module, a transmission rack, a transmission gear, a rotating shaft and a bending part, the transmission rack is fixedly arranged on the transmission module, the driving part drives the transmission module to move, the rotating shaft and the transmission gear are axially fixed and rotationally arranged on the rack, the transmission gear is meshed with the transmission rack, and the bending part is arranged on the rack. The rotating shaft is fixed with the end part of the bending piece so as to drive the bending piece to turn over; the invention further discloses a double-station bending machine which comprises a pair of bending devices and is further provided with the supporting mechanism. The terminal bending mechanism has the advantages that the driving piece of the bending mechanism can drive the bending piece to turn over in different directions, so that the terminal can be bent in two different directions.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal bending, and particularly to a bending device and a double-station bending machine using the same. Background Art

[0002] During the production of coils, the terminals on the coils need to be bent. After the terminals on the coils are bent, the contact area between the terminals and the wires can be increased, thereby enhancing the firmness of the connection and the electrical conductivity. In addition, bending can also make the combination between the terminals and the wires closer, reducing the possibility of loosening and falling off, so as to improve the reliability and stability of the connection.

[0003] Currently, the bending of terminals is usually completed by bending equipment. Referring to Patent CN107516804B, the existing terminal bending equipment includes a frame, a bending connector, a linear brake, a slider, and a bending tool. The terminal is installed and placed on the bending connector. The bending tool is horizontally rotatably installed on the frame. The linear brake is fixedly arranged on the frame. The slider is vertically slidably arranged on the frame. The linear brake drives the slider to move downward, thereby driving the bending tool to rotate, so as to bend the terminal installed and placed on the bending connector.

[0004] The existing bending equipment can only bend the terminals in a single direction. Therefore, when it is necessary to bend the terminals in two different directions to bend the terminals into a "Z" shape, the existing bending equipment is difficult to achieve, and improvements need to be made. Summary of the Invention

[0005] The purpose of the present invention is to provide a bending device that can bend terminals in two different directions and a double-station bending machine using the same.

[0006] The present invention provides a bending device, which includes a frame, a feeding mechanism, a pressing mechanism, and a bending mechanism. The feeding mechanism is horizontally arranged on the frame and feeds the coils. The pressing mechanism includes a mounting frame, a lifting cylinder, a coil pressing block, and a terminal pressing block. The mounting frame is arranged on the frame. The lifting cylinder is arranged on the mounting frame and drives the coil pressing block and the terminal pressing block to lift. The terminal pressing block limits the vertical direction of the terminal. The bending mechanism is horizontally arranged on the frame. The bending mechanism includes a driving member, a transmission block, a transmission rack, a transmission gear, a rotating shaft, and a bending member. The transmission rack is horizontally and fixedly arranged on the transmission block and is driven by the driving member to move the transmission block and the transmission rack. The rotating shaft is axially fixed to the transmission gear and is rotatably arranged on the frame. The transmission gear meshes with the transmission rack. The rotating shaft is fixed to the end of the bending member to drive the bending member to flip.

[0007] Preferably, the driving member is arranged as a cylinder, the telescopic rod of the cylinder is fixed to the transmission block, a first sliding track is arranged on the frame, a first sliding seat is fixedly arranged at the bottom end of the transmission block, and the first sliding seat is seated on the first sliding track.

[0008] Preferably, there is a pair of transmission racks, transmission gears and rotating shafts arranged in the bending mechanism. The transmission block includes a first transmission block and a second transmission block. The first transmission block is fixedly arranged on the first sliding seat, the second transmission block is fixedly arranged on the first transmission block and is perpendicular to the first transmission block, and the two transmission racks are respectively fixed to both ends of the second transmission block.

[0009] Preferably, the component on the frame rotatably connected to the rotating shaft is an installation plate. A limiting handle is arranged at the end of the rotating shaft. An installation block is fixedly arranged on the side surface of the installation plate. A limiting rod is vertically fixedly arranged on the installation block, and the limiting rod limits the flipping of the limiting handle.

[0010] Preferably, a threaded hole is vertically formed through the installation block, and the limiting rod is fixedly connected by threading in the threaded hole.

[0011] Preferably, the bending member includes a bending block, a connecting block and a pair of rotating handles. The two rotating handles are respectively fixed to the ends of the two rotating rods. The two ends of the connecting block are respectively fixed to the two rotating handles, and the bending block is fixed at the middle position of the connecting block.

[0012] Preferably, a pair of first clamping grooves are formed on the surface of the bending block for clamping and limiting the terminals.

[0013] Preferably, the feeding mechanism includes a feeding cylinder, a feeding seat, a supporting seat, a feeding slide rail and a feeding slide seat. The feeding cylinder and the feeding slide rail are both fixedly arranged on the frame. The feeding slide seat is fixedly arranged at the bottom end of the feeding seat and is slidably arranged on the feeding slide rail. A placing groove is formed on the surface of the feeding seat for placing the coil; the supporting seat is fixed at one end of the feeding seat facing the bending mechanism, and a pair of second clamping grooves are formed on the surface of the supporting seat for clamping and limiting the terminals.

[0014] Preferably, a limiting block is fixedly arranged on the frame, a limiting member is fixedly arranged on one side of the feeding seat, and the limiting block limits the movement of the limiting member.

[0015] Preferably, the pressing mechanism further includes a lifting seat and a pair of guide sleeves. The coil pressing block and the terminal pressing block are fixed to the bottom end of the lifting seat. The mounting frame includes a pair of guide rods. The two guide sleeves are fixedly arranged in the lifting seat, the guide rods are arranged in the guide sleeves, and the telescopic rod of the lifting cylinder is fixed to the lifting seat.

[0016] Preferably, an installation box is fixedly arranged at the bottom end of the lifting seat. A pair of buffer springs are arranged in the installation box. A pair of through holes are formed at the bottom end of the installation box. A connecting rod is inserted through the two through holes. The two ends of the buffer spring are respectively fixed to the top wall of the installation box and one end of the connecting rod. The other ends of the two connecting rods are respectively fixed to the coil pressing block and the terminal pressing block.

[0017] Preferably, a pair of guiding grooves are vertically formed on the surface of the installation box. A guiding pin is fixed on the surface of each of the two connecting rods. The guiding pin is inserted into the guiding groove.

[0018] The present invention also discloses a double-station bending machine, which includes a pair of bending devices. The two bending devices are respectively a first bending device and a second bending device. The first bending device bends the head of the terminal downward, and the second bending device bends the tail of the terminal upward. A supporting mechanism is further arranged in the first bending device. The supporting mechanism includes an ejecting cylinder and a supporting block. The supporting block is fixedly arranged at the end of the telescopic rod of the ejecting cylinder and is located between the feeding mechanism and the bending mechanism.

[0019] Preferably, a pair of third clamping grooves are formed on the top surface of the supporting block. The terminal is clamped in the third clamping groove.

[0020] Preferably, the supporting mechanism is obliquely arranged. One side of the upper end of the supporting block is provided as an inclined surface and can be attached to the end wall of the supporting seat.

[0021] From the above description of the present invention, the present invention has the following beneficial effects: 1. In the two bending mechanisms of the double-station bending machine, the driving member can drive the transmission rack to move back and forth, so as to drive the bending member to flip in different directions through the transmission gear, thereby realizing bending the terminal in two different directions and meeting the processing requirements of multi-segment bending of the terminal.

[0022] 2. The rotating shaft is rotatably connected to the mounting plate of the frame. A limiting handle is arranged at the end of the rotating shaft. A mounting block is fixedly arranged on the side surface of the mounting plate. A limiting rod is vertically fixedly arranged on the mounting block. The flipping of the limiting handle is limited by the limiting rod; thereby controlling the maximum flipping angle of the bending member to avoid excessive flipping of the terminal.

[0023] 3. An installation box is fixedly arranged at the bottom end of the lifting seat. A pair of buffer springs are arranged in the installation box. Two connecting rods respectively fixed to the coil pressing block and the terminal pressing block are inserted through the through holes of the installation box. The two ends of the buffer spring are respectively fixed to the top wall of the installation box and one end of the connecting rod; the arrangement of the buffer spring provides a jumping space for the coil pressing block and the terminal pressing block to avoid excessive pressure on the surface of the coil or the surface of the supporting seat. Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of a double-station bending machine in an embodiment; Figure 2 is a schematic diagram of the structure of the first bending device in an embodiment; Figure 3 is a schematic diagram of the structure of the loading mechanism in an embodiment; Figure 4 is a schematic diagram of the structure of the loading seat and the support seat in an embodiment; Figure 5 is a schematic diagram of the structure of the pressing mechanism in an embodiment; Figure 6 is a schematic diagram of the structure of the installation box, the coil pressing block and the terminal pressing block in an embodiment; Figure 7 is a schematic diagram of the structure of the buffer spring in an embodiment; Figure 8 is a schematic diagram of the structure of the support mechanism in an embodiment; Figure 9 is a schematic diagram of the structure of the support block in an embodiment; Figure 10 is a schematic diagram of the structure of the bending mechanism in an embodiment; Figure 11 is a schematic diagram of the structure of the transmission rack, the transmission gear and the mounting plate in an embodiment; Figure 12 is a schematic diagram of the structure of the bending part in an embodiment; Figure 13 is a schematic diagram of the structure of the mounting block and the limiting rod in an embodiment; Figure 14 is a schematic diagram of the state before the bending block of the first bending device bends the terminal in an embodiment; Figure 15 is a schematic diagram of the state after the bending block of the first bending device bends the terminal in an embodiment; Figure 16 is a schematic diagram of the state before the bending block of the second bending device bends the terminal in an embodiment; Figure 17 is a schematic diagram of the state after the bending block of the second bending device bends the terminal in an embodiment.

[0025] Reference Signs: 1, first bending device; 11, frame; 111, limit block; 112, mounting plate; 113, mounting block; 114, screw hole; 115, limit rod; 12, feeding mechanism; 121, feeding cylinder; 122, feeding seat; 1221, placing groove; 123, supporting seat; 1231, second clamping groove; 124, feeding slide rail; 125, feeding slide block; 126, limiting member; 13, pressing mechanism; 131, mounting frame; 1311, guide rod; 132, lifting cylinder; 133, coil pressing block; 134, terminal pressing block; 135, mounting box; 1351, through hole; 1352, guiding groove; 1353, guiding pin; 136, lifting seat; 137, guide sleeve; 138, buffer spring; 139, connecting rod; 14, bending mechanism; 141, driving member; 142, transmission block group; 1421, first transmission block; 1422, second transmission block; 143, first sliding track; 144, first sliding block; 145, transmission rack; 146, transmission gear; 147, rotating shaft; 148, bending member; 1481, bending block; 14811, first clamping groove; 1482, connecting block; 1483, rotating handle; 149, limiting handle; 15, supporting mechanism; 151, ejecting cylinder; 152, supporting block; 1521, third clamping groove; 1522, inclined surface; 2, second bending device. Detailed Embodiment

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the Figure 1-17 accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Refer to Figure 1 and Figure 2 A double-station bending machine is composed of two bending devices, namely the first bending device 1 and the second bending device 2. The bending process of the upper terminal of the coil is completed in two steps by the first bending device 1 and the second bending device 2. Among them, the head of the terminal is bent downward by the first bending device 1, and then the tail of the terminal is bent upward by the second bending device 2. Both the first bending device 1 and the second bending device 2 include a frame 11, a feeding mechanism 12, a pressing mechanism 13 and a bending mechanism 14. Among them, the feeding mechanism 12, the pressing mechanism 13 and the bending mechanism 14 are all arranged on the frame 11. The feeding mechanism 12 and the bending mechanism 14 are arranged opposite to each other, and the pressing mechanism 13 is arranged above one end of the feeding mechanism 12 close to the bending mechanism 14. The coil and the terminal are fed through the feeding mechanism 12, so that the coil and the terminal move to the lower part of the pressing mechanism 13. The coil and the terminal are fixed by the pressing mechanism 13, and finally the terminal is bent by the bending mechanism 14.

[0028] Reference Figure 3 and Figure 4 wherein the feeding mechanism 12 includes a feeding cylinder 121, a feeding seat 122, a support seat 123, a feeding slide rail 124 and a feeding slide block 125. The feeding cylinder 121 and the feeding slide rail 124 are arranged in a straight line on the frame 11. The feeding slide block 125 is fixed to the bottom end of the feeding seat 122 and is seated on the feeding slide rail 124. The support seat 123 is fixed to one end of the feeding seat 122 close to the bending mechanism 14. A placing groove 1221 is formed on the surface of the feeding seat 122, and a pair of second clamping grooves 1231 are formed on the surface of the support seat 123 along its length direction. After the coil is placed in the placing groove 1221 of the feeding seat 122, the terminals of the coil are clamped in the second clamping grooves 1231 of the support seat 123. The support seat 123 supports the terminals, and the second clamping grooves 1231 on the surface of the support seat 123 limit the terminals to prevent the terminals from shifting during feeding or bending. The telescopic rod of the feeding cylinder 121 is fixed to the feeding seat 122, and the feeding cylinder 121 drives the feeding seat 122 and the support seat 123 to slide towards the bending mechanism 14, thereby completing the feeding of the coil and the terminals.

[0029] Reference Figure 5 、 Figure 6 and Figure 7 wherein the pressing mechanism 13 includes a mounting frame 131, a lifting cylinder 132, a coil pressing block 133, a terminal pressing block 134, a mounting box 135, a lifting seat 136 and a pair of guide sleeves 137. The mounting frame 131 is vertically and fixedly arranged on the frame 11, and the mounting frame 131 includes a pair of guide rods 1311. The lifting cylinder 132 is vertically and fixedly arranged on the mounting frame 131. The two guide sleeves 137 are fixedly arranged in the lifting seat 136, and the two guide columns are inserted around the guide sleeves 137. The telescopic rod of the lifting cylinder 132 is fixed to the lifting seat 136. The lifting seat 136 is lifted and lowered along the guide columns through the guide sleeves 137 under the driving action of the lifting cylinder 132. The mounting box 135 is fixed to the bottom end of the lifting seat 136. A pair of buffer springs 138 are arranged in the mounting box 135, and a pair of through holes 1351 are formed at the bottom end of the mounting box 135. Connecting rods 139 are inserted into the two through holes 1351. The two ends of the buffer springs 138 are respectively fixed to the end portions of the connecting rods 139 and the top wall of the mounting box 135, and the coil pressing block 133 and the terminal pressing block 134 are respectively fixed to the bottom ends of the two connecting rods 139.

[0030] In order to enable the coil to accurately move below the coil pressing block 133 and the terminal pressing block 134, a limiting member 126 is fixedly arranged on one side of the loading seat 122, and a limiting block 111 is fixedly arranged on the surface of the frame 11 correspondingly. When the limiting member 126 on one side of the loading seat 122 abuts against the limiting block 111, the support seat 123 stops sliding. At this time, the coil and the terminal move to directly below the coil pressing block 133 and the terminal pressing block 134. The telescopic rod of the lifting cylinder 132 extends, so as to drive the coil pressing block 133 and the terminal pressing block 134 to descend, and make the bottom end of the coil pressing block 133 abut against the coil, and the bottom end of the terminal pressing block 134 abut against the surface of the support seat 123, so that the tail end of the terminal is limited between the terminal pressing block 134 and the support seat 123. The buffer spring 138 arranged in the mounting box 135 plays a buffering role in pressing and fixing the coil and the terminal, so as to prevent damage to the coil and the terminal caused by excessive pressure applied by the coil pressing block 133 and the terminal pressing block 134. When the coil pressing block 133 and the terminal pressing block 134 respectively abut against the coil and the terminal, as the lifting cylinder 132 continues to drive the lifting seat 136 to descend, the connecting rod 139 gradually presses the buffer spring 138, causing relative sliding between the connecting rod 139 and the mounting box 135. In order to prevent the connecting rod 139 from deviating in angle during the movement; a pair of guiding grooves 1352 are formed by opening in the vertical direction on the surface of the mounting box 135, and guiding pins 1353 are fixedly arranged on the surfaces of the two connecting rods 139, so that the guiding pins 1353 are inserted into the guiding grooves 1352.

[0031] Refer to Figure 8 and Figure 9, compared with the second bending device 2, the first bending device 1 further includes a support mechanism 15, and the support mechanism 15 is inclined and arranged between the feeding mechanism 12 and the bending mechanism 14. The support mechanism 15 includes an ejecting cylinder 151 and a support block 152. The support block 152 is fixedly arranged at the top end of the telescopic rod of the ejecting cylinder 151. When the ejecting cylinder 151 is in a normal state, the top surface of the support block 152 is flush with the top surface of the support block 152. After the terminal pressing block descends, it abuts against the support block and the support seat at the same time. A pair of third card slots 1521 are formed on the surface of the support block 152, and the two terminals on the coil are clamped in the two third card slots 1521 on the surface of the support block 152, so as to limit the terminals and prevent the two terminals from deviating in angle. In the first bending device 1, the head of the terminal is bent downward by the bending mechanism 14. The setting of the support mechanism 15 further provides support for the two terminals, preventing the support seat and the feeding seat from being arched during the process of the bending mechanism 14 bending the head of the terminal. One side of the upper end of the support block 152 is set as an inclined surface 1522. When the ejecting cylinder 151 drives the support block 152 to move to be flush with the top surface of the support seat 123, the inclined surface 1522 on one side of the support block 152 fits with the end wall of the support seat 123, so that the support block 152 also supports the support seat 123 at the same time. After the head of the terminal is bent by the bending mechanism 14, the telescopic rod of the ejecting cylinder 151 retracts, causing the support block 152 to descend to avoid interfering with the removal of the coil and the terminals.

[0032] Refer to Figure 10 and Figure 11, the bending mechanism 14 includes a driving member 141, a transmission block 142, a first sliding track 143, a first sliding seat 144, a pair of transmission racks 145, a pair of transmission gears 146, a pair of rotating shafts 147 and a bending member 148. The driving member 141 and the first sliding track 143 are fixedly arranged on the frame 11. The first sliding seat 144 is fixedly arranged at the bottom end of the transmission block 142, and the first sliding seat 144 is seated on the first sliding track 143. The transmission block 142 is composed of a first transmission block 1421 and a second transmission block 1422. The second transmission block 1422 is fixedly arranged on the first transmission block 1421, and the second transmission block 1422 is perpendicular to the first transmission block 1421. The driving member 141 is set as a cylinder, and the telescopic rod of the cylinder is fixed to the first transmission block 1421. The transmission block 142 is driven by the cylinder to slide on the frame 11. The two transmission racks 145 are respectively fixed at both ends of the second transmission block 1422, and the two transmission racks 145 are perpendicular to the second transmission block 1422. The rotating shaft 147 is axially fixed to the transmission gear 146. In order to meet the rotational installation of the rotating shaft 147, a plurality of mounting plates 112 are vertically and fixedly arranged on the frame 11. The two ends of the rotating shaft 147 are respectively rotatably connected to the mounting plates 112, and the transmission gear 146 is meshed with the transmission rack 145.

[0033] Referring to Figure 11 and Figure 12 , the bending member 148 includes a bending block 1481, a connecting block 1482 and a pair of rotating handles 1483. The rotating handles 1483 are located at both ends of the connecting block 1482, and the bending block 1481 is located at the middle position of the connecting block 1482. The two rotating handles 1483 are respectively fixed to the closer ends of the two rotating shafts 147. By driving the transmission rack 145 to move through the driving member 141, the rotating shafts 147 and the rotating handles 1483 of the bending member 148 rotate self - rotatably driven by the transmission gear 146. At the same time, the connecting block 1482 and the bending block 1481 of the bending member 148 make a circular motion around the rotating shaft 147. The first bending device 1 bends the head of the terminal downward. The initial state of the bending block 1481 is above the head of the terminal. Subsequently, the driving member 141 drives the transmission block 142 and the transmission rack 145 to slide in the direction close to the feeding mechanism 12, so that the transmission gear 146 rotates to drive the bending block 1481 to turn downward, thereby bending the head of the terminal downward.

[0034] Referring to Figure 11 and Figure 13, in order to prevent excessive bending of the terminal, a limit handle 149 is provided at one end of the rotating rod away from the rotating handle 1483. Correspondingly, a mounting block 113 is fixedly provided on the side surface of the mounting plate 112, and a screw hole 114 is vertically formed through the mounting block 113. A limit rod 115 is threadedly connected in the screw hole 114 of the mounting block 113, and the limit rod 115 is rotated to fix it at an appropriate position height. The rotating shaft 147 rotates to drive the bending member 148 and the limit handle 149 to flip. When the limit handle 149 flips to abut against the limit rod 115, the bending member 148 stops bending the terminal. The flipping of the limit handle 149 is limited by the limit rod 115 to prevent the bending member 148 from over-bending the terminal. The limit rod 115 is fixed in the mounting block 113 by threaded connection, so as to facilitate adjusting the fixed position of the limit rod 115, thereby adjusting the bending angle of the terminal. After the terminal is bent by the bending member 148, in order to prevent the bent terminal from having an angular offset, a pair of first card slots 14811 are formed on the surface of the bending block 1481. The two first card slots 14811 formed are parallel to each other and are distributed along the length direction of the bending block 1481. When the bending block 1481 bends the terminal on the coil, the terminal on the coil is clamped in the first card slot 14811 on the surface of the bending block 1481, and the first card slot 14811 is provided to limit the terminal during the bending process.

[0035] Refer to Figures 14-17 , after the first bending process of the terminal is completed by the first bending mechanism 14, subsequently, when the second bending process of the terminal on the coil is carried out by the second bending device 2. In the second bending device 2, the coil and the terminal are also fed by the feeding mechanism 12; and the coil and the terminal are pressed and fixed by the pressing mechanism 13, so that the coil pressing block 133 presses on the coil, and the terminal pressing block 134 presses on the terminal, so that the two terminals are limited between the support seat 123 and the terminal pressing block 134. Finally, the bending mechanism 14 in the second bending device 2 bends the tail of the terminal upward. Before the second bending device 2 bends the terminal, the bending member 148 in its bending mechanism 14 is located below the terminal, and the driving member 141 drives the transmission block 142, the transmission block 142 and the transmission rack 145 to move away from the feeding mechanism 12, so that the transmission gear 146 drives the bending member 148 to flip upward, thereby bending the terminal upward. Until the limit handle 149 on the rotating shaft 147 abuts against the limit rod 115, at this time, the second bending of the terminal is completed.

[0036] The specific implementation principle of the embodiment of the present application is as follows: When it is necessary to bend the terminals, first, the first bending device 1 bends the heads of the terminals at the upper end of the coil downward. The coil and terminals to be bent are fed through the feeding mechanism 12 of the first bending device 1. The coil is placed in the placement groove 1221 of the feeding seat 122, so that the two terminals are clamped in the second card slot 1231 of the support seat 123. After installation, the heads of the two terminals protrude beyond the support seat 123.

[0037] The telescopic rod of the feeding cylinder 121 extends to drive the feeding seat 122 and the support seat 123 to slide towards the bending mechanism 14 until the limiting member 126 abuts against the limiting block 111 on the frame 11. At this time, the coil on the feeding seat 122 is located below the coil pressing block 133, and the terminals on the support seat 123 are located below the terminal pressing block 134. Subsequently, the telescopic rod of the lifting cylinder 132 extends to drive the coil pressing block 133 to abut against the upper part of the coil, and drive the pressing and fixing block to abut against the support seat 123, so that the terminals are limited between the support seat 123 and the terminal pressing block 134; at this time, the heads of the two terminals protruding beyond the support seat 123 are located below the bending member 148.

[0038] Finally, the bending mechanism 14 in the first bending device 1 bends the terminals on the coil. At this time, the driving member 141 drives the transmission block 142 and the transmission rack 145 to move towards the feeding mechanism 12. The transmission gear 146 rotates under the action of the transmission rack 145. During the rotation of the rotating shaft 147, the bending member 148 is driven to flip downward. When the bending member 148 flips downward, the two terminals are bent until the limiting handle 149 fixed on the rotating shaft 147 abuts against the limiting rod 115, and the bending member 148 stops flipping; thus, the first bending process of the terminals on the coil is completed by the first bending device 1.

[0039] Then, the second bending device 2 bends the tails of the terminals at the upper end of the coil upward. The coil and terminals that have completed the first bending process are fed through the feeding mechanism 12 of the second bending device 2, so that the coil and terminals move below the coil pressing block 133 and the terminal pressing block 134. The telescopic rod of the lifting cylinder 132 extends, and similarly, the coil pressing block 133 abuts against and presses the coil, and the terminal pressing block 134 presses on the support seat 123.

[0040] At this time, the bending member 148 of the second bending device 2 is located below the terminal. Subsequently, the driving member 141 of the bending mechanism 14 drives the transmission block 142 and the transmission rack 145 to move away from the feeding mechanism 12. The transmission gear 146 rotates under the action of the transmission rack 145. Thus, the bending member 148 is driven to turn upward through the rotating shaft 147. During the upward turning of the bending member 148, the two terminals are embedded in the first card slots 14811 of the bending block 1481, thereby preventing the terminals from having angular offsets during the turning process. Until the limiting handle 149 on the rotating shaft 147 abuts against the limiting rod 115 on the mounting block 113, thus completing the second bending process for the upper terminals of the coil.

[0041] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A bending device, characterized in that: It includes a frame, a feeding mechanism, a pressing mechanism and a bending mechanism; The feeding mechanism is horizontally arranged on the frame and feeds the coil; The pressing mechanism includes a mounting frame, a lifting cylinder, a coil pressing block and a terminal pressing block. The mounting frame is arranged on the frame. The lifting cylinder is arranged on the mounting frame and drives the coil pressing block and the terminal pressing block to lift. The terminal pressing block limits the vertical direction of the terminal; The bending mechanism is horizontally arranged on the frame. The bending mechanism includes a driving member, a transmission block, a transmission rack, a transmission gear, a rotating shaft and a bending member. The transmission rack is horizontally and fixedly arranged on the transmission block and is driven by the driving member to move the transmission block and the transmission rack. The rotating shaft is axially fixed to the transmission gear and is rotatably arranged on the frame. The transmission gear meshes with the transmission rack. The rotating shaft is fixed to the end of the bending member to drive the bending member to flip.

2. The bending device according to claim 1, wherein: The driving member is set as a cylinder. The telescopic rod of the cylinder is fixed to the transmission block. A first sliding track is arranged on the frame. A first sliding seat is fixedly arranged at the bottom end of the transmission block. The first sliding seat is seated on the first sliding track.

3. The bending device according to claim 2, characterized in that: There is a pair of the transmission rack, the transmission gear and the rotating shaft arranged in the bending mechanism. The transmission block includes a first transmission block and a second transmission block. The first transmission block is fixedly arranged on the first sliding seat. The second transmission block is fixedly arranged on the first transmission block and is perpendicular to the first transmission block. The two transmission racks are respectively fixed to the two ends of the second transmission block.

4. A bending device according to claim 1, characterized in that: What is rotationally connected to the rotating shaft on the frame is a mounting plate. A limiting handle is arranged at the end of the rotating shaft. A mounting block is fixedly arranged on the side surface of the mounting plate. A limiting rod is vertically and fixedly arranged on the mounting block. The limiting rod limits the flipping of the limiting handle.

5. A bending device according to claim 4, characterized in that: A screw hole is vertically formed through the mounting block. The limiting rod is fixedly connected by threading in the screw hole.

6. The bending device according to claim 3, characterized in that: The bending member includes a bending block, a connecting block and a pair of rotating handles. The two rotating handles are respectively fixed to the ends of the two rotating rods. The two ends of the connecting block are respectively fixed to the two rotating handles. The bending block is fixed at the middle position of the connecting block.

7. A bending device according to claim 6, characterized in that: A pair of first clamping grooves are formed on the surface of the bending block for clamping and limiting the terminal.

8. A bending device according to claim 1, characterized in that: The feeding mechanism includes a feeding cylinder, a feeding seat, a supporting seat, a feeding slide rail and a feeding slide seat. The feeding cylinder and the feeding slide rail are both fixedly arranged on the frame. The feeding slide seat is fixedly arranged at the bottom end of the feeding seat and is slidably arranged on the feeding slide rail. A placing groove is formed on the surface of the feeding seat for placing the coil. The supporting seat is fixed at one end of the feeding seat facing the bending mechanism. A pair of second clamping grooves are formed on the surface of the supporting seat for clamping and limiting the terminal.

9. A bending device according to claim 8, characterized in that: A limiting block is fixedly arranged on the frame. A limiting member is fixedly arranged on one side of the feeding seat. The limiting block limits the movement of the limiting member.

10. A bending device according to claim 1, characterized in that: The pressing mechanism further includes a lifting seat and a pair of guide sleeves. The coil pressing block and the terminal pressing block are fixed to the bottom end of the lifting seat. The mounting frame includes a pair of guide rods. The two guide sleeves are fixedly arranged in the lifting seat. The guide rods are inserted into the guide sleeves. The telescopic rod of the lifting cylinder is fixed to the lifting seat.

11. A bending device according to claim 10, characterized in that: A mounting box is fixedly arranged at the bottom end of the lifting seat. A pair of buffer springs are arranged in the mounting box. A pair of through holes are formed by opening at the bottom end of the mounting box. Connecting rods are inserted into the two through holes. The two ends of the buffer spring are respectively fixed to the top wall of the mounting box and one end of the connecting rod. The other ends of the two connecting rods are respectively fixed to the coil pressing block and the terminal pressing block.

12. A bending device according to claim 11, characterized in that: A pair of guide grooves are vertically formed by opening on the surface of the mounting box. Guide pins are fixed to the surfaces of the two connecting rods. The guide pins are inserted into the guide grooves.

13. A double-station bending machine, characterized in that: It includes a pair of bending devices according to any one of claims 1-12. The two bending devices are respectively a first bending device and a second bending device. The first bending device bends the head of the terminal downward. The second bending device bends the tail of the terminal upward. A support mechanism is further arranged in the first bending device. The support mechanism includes an ejecting cylinder and a support block. The support block is fixedly arranged at the end of the telescopic rod of the ejecting cylinder and is located between the feeding mechanism and the bending mechanism.

14. A double-station bending machine according to claim 13, characterized in that: A pair of third clamping grooves are formed by opening on the top surface of the support block. The terminal is clamped in the third clamping grooves.

15. A double-station bending machine according to claim 13, characterized in that: The support mechanism is inclined. One side of the upper end of the support block is provided as an inclined surface and can be attached to the end wall of the support seat.

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