Multi-angle bending apparatus and method

Abstract

The application provides a multi-angle bending device and method. The bending device comprises a rack, a transfer assembly arranged on the rack, a first bending assembly and a second bending assembly. The transfer assembly is used to transfer a workpiece to be bent to the first bending assembly and the second bending assembly for bending operation. The first bending assembly comprises a first support, a downward bending mechanism arranged on the first support and a floating material support mechanism. The downward bending mechanism comprises a first mounting seat arranged obliquely on the first support, a first sliding plate arranged slidingly on the first mounting seat, a first driving mechanism connected with the first sliding plate and used to drive the first sliding plate to move, a pressing mechanism arranged on the first sliding plate and a bending roller shaft arranged rotatably at the lower end of the first sliding plate. The floating material support mechanism comprises a second mounting seat arranged vertically and fixedly on the first support. The application has the advantages of low cost and high bending efficiency in actual use, and can realize multi-angle bending of a connector terminal.

Description

Technical Field

[0001] This invention relates to the field of connector terminal bending equipment technology, specifically to a multi-angle bending equipment and method. Background Technology

[0002] In the connector industry, terminal bending is generally accomplished using stamping dies. Each die requires at least two bending stations and one adjustment station to ensure bending stability. Furthermore, the cost of stamping dies and presses is high, with a single set costing hundreds of thousands of yuan. Different bent terminals require newly developed dies to meet bending requirements. The packaging of bent terminals also has high requirements (due to their susceptibility to deformation), significantly limiting subsequent production processes. For example, the costs of injection molding and electroplating increase, while the efficiency of subsequent processes decreases, leading to higher product manufacturing costs. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-angle bending device and method, which has the advantages of low cost, high bending efficiency and stable bending angle in practical use, and can realize multi-angle bending of connector terminals.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A multi-angle bending device includes a frame, a transfer component mounted on the frame, and a first bending component. The transfer component is used to transfer the workpiece to be bent to the first bending component for bending operation.

[0006] The first bending assembly includes a first bracket, a downward bending mechanism mounted on the first bracket, and a floating material support mechanism;

[0007] The downward bending mechanism includes a first mounting base inclinedly disposed on a first bracket, a first sliding plate slidably disposed on the first mounting base, a first driving mechanism connected to the first sliding plate and used to drive the first sliding plate to move, a pressing mechanism disposed on the first sliding plate, and a bending roller shaft rotatably disposed at the lower end of the first sliding plate.

[0008] The floating material support mechanism includes a second mounting base that is vertically and fixedly mounted on a first bracket, a second sliding plate that is slidably mounted on the second mounting base, and a second driving mechanism mounted on the first bracket for driving the second sliding plate to move. A bending lower die is provided at the upper end of the second sliding plate. A pressing mechanism is used to press the workpiece to be bent tightly onto the bending lower die. A bending inclined surface is provided on the bending lower die, and the bending inclined surface is tangent to the bending roller shaft.

[0009] The first support is equipped with an adjustment mechanism for adjusting the travel distance of the first skateboard.

[0010] The pressing mechanism includes a limiting plate, a moving plate, and a pressing block. The limiting plate is fixedly mounted on the first sliding plate, the moving plate is slidably mounted on the first sliding plate, a buffer spring is provided between the limiting plate and the first sliding plate, and the pressing block is fixedly mounted on the limiting plate and extends beyond the first sliding plate.

[0011] Further optimization is achieved by including a telescopic rod, a sliding block, and a roller in the second drive mechanism. The sliding block is slidably mounted on the first bracket, the telescopic rod is fixedly mounted on the first bracket and connected to the sliding block, and the roller is fixedly mounted at the lower end of the second slide plate. The sliding block has an inclined surface, and the roller contacts the inclined surface.

[0012] Preferably, the first driving mechanism includes a first telescopic rod, a first sliding block, a first roller, and a first mounting plate. The first mounting plate is inclinedly disposed on the first bracket. The first telescopic rod is fixedly mounted on the first mounting plate and connected to the first sliding block which is slidably disposed on the first mounting plate. The first sliding block is provided with a first inclined surface. The first roller is mounted on the first sliding plate and, under the action of a tension spring, the first roller contacts the first inclined surface. The extension line of the first sliding plate is perpendicular to the first mounting plate. A fixing plate is provided at the end of the first mounting plate, and an adjustment mechanism is disposed on the fixing plate.

[0013] Preferably, the adjusting mechanism includes an adjusting bolt, which is threaded onto the fixed plate, and the end of the adjusting bolt is used to contact the end face of the first sliding block.

[0014] The transfer assembly includes a mounting frame, a guide seat, a pressure plate, a side plate, and a feeding mechanism. The guide seat has a groove on its upper side and is fixedly mounted on the mounting frame. The guide seat also has a first notch and a second notch on the side plate. After the side plate and the guide seat are fixedly connected, the first and second notches form a first guide groove, and a sliding groove and a gap are formed between the guide seat and the side plate.

[0015] The pressure plate is provided with a second guide groove corresponding to the first guide groove, and the pressure plate is also provided with a clearance groove communicating with the second guide groove; the pressure plate is fixedly set on the guide seat, and a guide area is formed between the pressure plate and the guide seat; the pressure plate is provided with a plurality of first pressing mechanisms, and the pressure plate located at the first bending assembly is provided with a second pressing mechanism; the material feeding mechanism is slidably set in the slide groove, and the material feeding mechanism is used to realize intermittent material feeding of the workpiece to be bent.

[0016] Further optimization includes a material feeding mechanism comprising a reciprocating cylinder, a connecting plate, and a drive rod. The reciprocating cylinder is fixedly mounted on the mounting bracket and connected to the connecting plate. The drive rod is slidably mounted in a groove and connected to the connecting plate. The drive rod has several mounting slots, each containing a rotating block. A spring is installed between the rotating block and the bottom of the mounting slot, causing the rotating block to contact the top of the groove under the action of the spring. The rotating block has a prying piece that passes through the gap. The prying piece has a right-angled triangular structure. The material feeding mechanism is used to move the workpiece to be bent to the positions of the first and second pressing mechanisms through the gap.

[0017] The first pressing mechanism includes an L-shaped limiting plate, a pressing block, and a pressing spring. The pressing plate is provided with a slot, the pressing block is slidably disposed in the slot and the lower end of the pressing block extends into the second guide groove, the L-shaped limiting plate is fixedly disposed on the pressing plate, and the pressing spring is located between the L-shaped limiting plate and the pressing block.

[0018] Further optimization involves a second pressure mechanism used to firmly hold the workpiece in place during bending.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention achieves the bending operation of connector terminals through a first bending component, a downward bending mechanism, and a floating material support mechanism. Simultaneously, when the transfer component moves the workpiece, the floating material support mechanism moves downward to facilitate workpiece movement. In use, the connector terminals are transferred to the first bending component via the transfer component. At this time, the conductive end of the connector terminal will be located on the lower bending die. The second drive mechanism drives the second sliding plate upward to support the workpiece, while the first drive mechanism drives the first sliding plate downward, causing the pressing mechanism to press the conductive end onto the lower bending die. As the first sliding plate continues to move, the bending roller shaft contacts the conductive end, and the bending operation of the conductive end is achieved under the limit of the lower bending die. Since the first adjustment mechanism can adjust the stroke of the first sliding plate, it can be adjusted according to actual needs, thereby controlling the distance the bending roller shaft moves and adjusting the bending angle of the bent portion. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 The main view.

[0024] Figure 3 This is a schematic diagram showing the positional relationship between the second bending component and the second pressing mechanism of the present invention.

[0025] Figure 4 For the present invention Figure 3 Side view.

[0026] Figure 5 This is a schematic diagram showing the assembly relationship between the second bending component and the second pressing mechanism of the present invention.

[0027] Figure 6 This is a schematic diagram of the overall structure of the first bending component of the present invention.

[0028] Figure 7 This is a schematic diagram of the overall structure of the first pressing mechanism of the present invention.

[0029] Figure 8 This is a schematic diagram showing the connection relationship between the transfer component and the second pressing mechanism of the present invention.

[0030] Figure 9 For the present invention Figure 5 A magnified view of a portion of point A in the middle.

[0031] Figure 10 For the present invention Figure 8 A magnified view of a portion of point B in the middle.

[0032] Figure label:

[0033] 101-Frame, 102-First bending assembly, 103-First support, 104-Transfer assembly, 105-Downward bending mechanism, 106-First mounting base, 107-First slide plate, 108-First drive mechanism, 109-First telescopic rod, 110-First sliding block, 111-First roller, 112-First mounting plate, 113-First inclined plane, 114-Fixing plate, 115-Adjusting mechanism, 116-Pressure mechanism, 117-Bending roller shaft, 1 18-Floating material support mechanism, 119-Second mounting base, 120-Second sliding plate, 121-Bending lower die, 122-Bending inclined surface, 123-Fixed component, 124-Limiting plate, 125-Moving plate, 126-Pressure block, 127-Buffer spring, 128-Second drive mechanism, 129-Telescopic rod, 130-Sliding block, 131-Roller, 132-Inclined surface, 133-Mounting bracket, 134-Guide seat, 135-Pressure plate, 136-Side plate, 137 - Feeding mechanism, 138-groove, 139-first notch, 140-second notch, 141-first guide groove, 142-slide groove, 143-gap, 144-second guide groove, 145-clearance groove, 146-guide area, 147-first pressing mechanism, 148-second pressing mechanism, 149-reciprocating cylinder, 150-connecting plate, 151-drive rod, 152-mounting groove, 153-rotating block, 154-connector terminal, 155-pushing piece 156-L-type limiting plate, 157-pressure block, 158-baffle, 159-slot, 160-first pressure plate, 161-fixed seat, 162-lifting cylinder, 163-L-type drive rod, 164-tightening block, 165-tightening part, 166-tightening spring, 167-arc-shaped part, 168-second bending assembly, 169-third bracket, 170-third fixed seat, 171-third sliding plate, 172-third drive mechanism, 173-third bending roller shaft. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0040] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0041] Example 1

[0042] This embodiment discloses a multi-angle bending device, including a frame 101, a transfer component 104 disposed on the frame 101, a first bending component 102 and a second bending component 168. The transfer component 104 is used to transfer the workpiece to be bent to the first bending component 102 and the second bending component 168 for bending operation. The workpiece to be bent is the connector terminal 154.

[0043] The first bending assembly 102 includes a first bracket 103, a downward bending mechanism 105 mounted on the first bracket 103, and a floating material support mechanism 118.

[0044] The downward bending mechanism 105 includes a first mounting base 106 inclinedly disposed on the first bracket 103, a first slide plate 107 slidably disposed on the first mounting base 106, a first drive mechanism 108 connected to the first slide plate 107 and used to drive the first slide plate 107 to move, a pressing mechanism 116 disposed on the first slide plate 107, and a bending roller shaft 117 rotatably disposed at the lower end of the first slide plate 107.

[0045] The floating material support mechanism 118 includes a second mounting base 119 that is vertically and fixedly mounted on the first bracket 103, a second sliding plate 120 that is slidably mounted on the second mounting base 119, and a second drive mechanism 128 mounted on the first bracket 103 for driving the second sliding plate 120 to move. A bending lower die 121 is provided at the upper end of the second sliding plate 120.

[0046] The pressing mechanism 116 is used to press the workpiece to be bent tightly onto the lower bending die 121. The lower bending die 121 is provided with a bending inclined surface 122, which is tangent to the bending roller shaft 117.

[0047] The first support 103 is provided with an adjustment mechanism 115 for adjusting the travel of the first slide plate 107.

[0048] This invention achieves the bending operation of the connector terminal 154 through a first bending component 102, achieves the downward bending purpose through a downward bending mechanism 105, and achieves the purpose of supporting the workpiece through a floating material support mechanism 118. Simultaneously, when the transfer component 104 moves the workpiece, the floating material support mechanism 118 moves downward to facilitate the movement of the workpiece. In use, the connector terminal is transferred to the first bending component 102 by the transfer component 104. At this time, the conductive end of the connector terminal 154 will be located on the lower bending die 121. Then, the second driving mechanism 128 drives the second sliding plate 120 to move upward to... The workpiece serves as a support. The first drive mechanism 108 drives the first slide plate 107 to move downward, so that the pressing mechanism 116 first presses the conductive end onto the bending die 121. As the first slide plate 107 continues to move, the bending roller shaft 117 contacts the conductive end. Under the limit of the bending die 121, the bending operation on the end of the conductive end is realized. Since the first adjustment mechanism 115 can adjust the stroke of the first slide plate 107, it can be adjusted according to actual needs, thereby controlling the distance of movement of the bending roller shaft 117, and thus realizing the adjustment of the bending angle of the end position of the bending part.

[0049] It should be noted that in actual use, the floating material support mechanism 118 supports the workpiece, and after the workpiece is bent once by the downward bending mechanism 105, the second drive mechanism 128 drives the second slide plate 120 to continue to move upward. At this time, the bending lower die 121 will move upward, thereby realizing the upward bending of the bent end. In actual use, the floating material support mechanism 118 is used to realize the upward 90° bending.

[0050] The pressing mechanism 116 includes a limiting plate 124, a moving plate 125, and a pressing block 126. The limiting plate 124 is fixedly mounted on the first sliding plate 107, the moving plate 125 is slidably mounted on the first sliding plate 107, a buffer spring 127 is provided between the limiting plate 124 and the first sliding plate 107, and the pressing block 126 is fixedly mounted on the limiting plate 124 and extends beyond the first sliding plate 107.

[0051] In this way, when bending the connector terminal 154, when the first slide plate 107 moves, the moving plate 125 will follow and first contact the connector terminal 154, and press and fix the connector terminal 154. At this time, the buffer spring 127 will be compressed. When the bending roller shaft 117 contacts the connector terminal 154, the bending of the connector terminal 154 can be achieved. Under the yielding effect of the bending slope 122, the bending effect can be improved, the purpose of over-bending can be achieved, and the situation of excessive bending rebound causing the bending to not meet the requirements can be avoided.

[0052] The second drive mechanism 128 includes a telescopic rod 129, a sliding block 130, and a roller 131. The sliding block 130 is slidably mounted on the first bracket 103. The telescopic rod 129 is fixedly mounted on the first bracket 103 and connected to the sliding block 130. The roller 131 is fixedly mounted at the lower end of the second slide plate 120. The sliding block 130 is provided with an inclined surface 132, and the roller 131 contacts the inclined surface 132.

[0053] The sliding block 130 is moved by the telescopic rod 129, thereby driving the second slide plate 120. Since the roller 131 is in contact with the inclined surface 132 on the sliding block 130, the second slide plate 120 can be moved upward and reset under the action of gravity when the sliding block 130 drives the roller 131 to move on the inclined surface 132. Of course, in actual use, the second slide plate 120 can also be reset by setting a tension spring.

[0054] In actual use, a reset spring is provided between the first slide plate 107 and the first bracket 103.

[0055] The first drive mechanism 108 includes a first telescopic rod 109, a first sliding block 110, a first roller 111, and a first mounting plate 112. The first mounting plate 112 is inclinedly disposed on the first bracket 103. The first telescopic rod 109 is fixedly mounted on the first mounting plate 112 and connected to the first sliding block 110 which is slidably disposed on the first mounting plate 112. The first sliding block 110 is provided with a first inclined surface 113. The first roller 111 is mounted on the first slide plate 107 and is in contact with the first inclined surface 113 under the action of a tension spring. The extension line of the first slide plate 107 is perpendicular to the first mounting plate 112. A fixing plate 114 is provided at the end of the first mounting plate 112, and an adjustment mechanism 115 is disposed on the fixing plate 114.

[0056] By tilting the first mounting plate 112, the first sliding plate 107 can move the connector terminal toward the bending slope 122 on the bending die 121. In the traditional method, the upper and lower dies are parallel, and the connector terminal 154 is deformed by extrusion. This requires the bending angle to be adjusted again using adjustment fixtures later. By tilting the first mounting plate and ensuring that the first sliding plate 107 is tilted, the first sliding plate 107 can slide at a preset tilt angle during bending, which can effectively compensate for the rebound angle of the connector terminal after bending, thereby achieving the purpose of one-step forming.

[0057] The adjusting mechanism 115 includes an adjusting bolt, which is threaded onto the fixed plate 114. The end of the adjusting bolt is used to contact the end face of the first sliding block 110.

[0058] When it is necessary to adjust the bending angle of the connector terminal 154, simply rotate the adjusting bolt to adjust the stroke of the first sliding block 110, thereby adjusting the stroke of the first sliding plate 107 and controlling the downward bending angle of the connector terminal 154.

[0059] In this embodiment, the transfer assembly 104 includes a mounting frame 133, a guide seat 134, a pressure plate 135, a side plate 136, and a feeding mechanism 137. The guide seat 134 has a groove 138 on its upper side and is fixedly mounted on the mounting frame 133. The guide seat 134 also has a first notch 139 and a second notch 140 on the side plate 136. After the side plate 136 is fixedly connected to the guide seat 134, the first and second notches form a first guide groove 141. A sliding groove 142 and a gap 143 are formed between the guide seat 134 and the side plate 136.

[0060] The pressure plate 135 is provided with a second guide groove 144 corresponding to the first guide groove 141, and the pressure plate 135 is also provided with a clearance groove 145 communicating with the second guide groove 144; the pressure plate 135 is fixedly mounted on the guide seat 134, and a guide area 146 is formed between the pressure plate 135 and the guide seat 134; a plurality of first pressing mechanisms 147 are provided on the pressure plate 135, and a second pressing mechanism 148 is provided on the pressure plate 135 located at the first bending assembly 102; the material feeding mechanism 137 is slidably mounted in the slide groove 142, and the material feeding mechanism 137 is used to realize intermittent material feeding of the workpiece to be bent.

[0061] It should be noted that, in this application, since the floating material support mechanism 118 not only supports the floating material but also has the purpose of bending upward, in actual use, the first bending component 102 and the second bending component 168 are both provided with a second pressing mechanism 148.

[0062] The transfer component 104 enables automated intermittent feeding, facilitating the bending of the connector terminal 154. In practical use, the fixing member 123 of the connector terminal 154 is placed in the material groove formed by the first guide groove 141 and the second guide groove 144. The conductive end of the connector terminal 154 extends out of the guide area 146. When the feeding mechanism 137 moves the connector terminal 154 to the first pressing mechanism 147, it is fixed to prevent the connector terminal 154 from moving. When the connector terminal 154 moves to the second pressing mechanism 148, the second pressing mechanism 148 further presses and fixes the connector terminal 154 to perform the bending operation.

[0063] The material feeding mechanism 137 includes a reciprocating cylinder 149, a connecting plate 150, and a drive rod 151. The reciprocating cylinder 149 is fixedly mounted on the mounting bracket 133 and connected to the connecting plate 150. The drive rod 151 is slidably mounted in the slide groove 142 and connected to the connecting plate 150. The drive rod 151 is provided with several mounting grooves 152. Each mounting groove 152 is provided with a rotating block 153. A spring is provided between the rotating block 153 and the bottom of the mounting groove 152. Under the action of the spring, the rotating block 153 contacts the top of the slide groove 142. The rotating block 153 is provided with a toggle piece 155 that passes through the gap 143. The toggle piece 155 has a right-angled triangular structure. The material feeding mechanism 137 is used to move the workpiece to be bent to the position of the first pressing mechanism 147 and the second pressing mechanism 148 through the gap 143.

[0064] In this way, the reciprocating cylinder 149 is used to drive the drive rod 151 so that it can move back and forth in the slide groove 142. By rotating the rotating block 153 in the mounting groove 152 and making the rotating block 153 contact the top of the slide groove 142 under the action of the spring, the rotating block 153 and the spring form an automatic reset structure. At the same time, the actuating plate 155 has a triangular structure. When the inclined surface of the actuating plate 155 contacts the fixing member 123 of the connector terminal 154, the actuating plate 155 will retract to the gap 143 and spring back away from the fixing member 123 of the connector terminal 154. When the right angle side of the actuating plate 155 contacts the fixing member 123 of the connector terminal 154, the actuating plate 155 will drive the connector terminal 154, so that the connector terminal 154 can move in the material groove formed by the first guide groove 141 and the second guide groove 144, thereby achieving the purpose of intermittent feeding.

[0065] The first pressing mechanism 147 includes an L-shaped limiting plate 156, a pressing block 157, and a pressing spring. A slot 159 is provided on the pressing plate 135. The pressing block 157 is slidably disposed in the slot 159 and the lower end of the pressing block 157 extends into the second guide groove 144. The L-shaped limiting plate 156 is fixedly disposed on the pressing plate 135, and the pressing spring is located between the L-shaped limiting plate 156 and the pressing block 157.

[0066] Thus, under the action of the compression spring and the pressure block 157, when the actuating piece 155 moves the connector terminal 154 to below the pressure block 157, the pressure block 157 presses and fixes the fixing piece 123 of the connector terminal 154 under the action of the compression spring.

[0067] In actual use, guide surfaces are provided on both sides of the pressure block 157 so that when the fixing member 123 of the connector terminal 154 contacts the guide surface, the pressure block 157 moves upward, avoiding the problem of poor movement.

[0068] The second pressing mechanism 148 is used to firmly fix the workpiece during bending; in this embodiment, the specific structure of the second pressing mechanism 148 is as follows:

[0069] The second pressing mechanism 148 includes a fixed base 161, a lifting cylinder 162, an L-shaped drive rod 163, and a pressing block 164. A through groove is provided on the pressing plate 135, which is connected to the second guide groove 144 and the clearance groove 145. The pressing block 164 is actively installed in the through groove through a rotating shaft. A pressing part 165 is provided on the pressing block 164. A pressing spring 166 connected to the pressing block 164 is provided in the through groove.

[0070] The fixed base 161 is fixedly mounted on the guide base 134, the lifting cylinder 162 is fixedly mounted on the fixed base 161, and the L-shaped drive rod 163 is rotatably mounted on the fixed base 161 via a pin. The end of the L-shaped drive rod 163 is provided with an arc-shaped portion 167 that contacts the clamping block 164. Thus, during the bending operation, the lifting cylinder 162 drives the L-shaped drive rod 163 to rotate, causing the arc-shaped portion 167 to contact the clamping block 164. After driving the clamping block 164 to rotate, the clamping portion 165 clamps the connector terminal 154. 123 is tightly fixed in the material groove; the L-shaped drive rod 163, the fixing seat 161 and the clamping block 164 form a lever-type fixing structure, which can eliminate the gap between the fixing part 123 of the connector terminal 154 and the material groove, realize the uniformity of the bending reference, and thus effectively improve the bending effect; at the same time, under the action of the clamping block 164, one end of the connector fixing part can be contacted and clamped, so as to achieve accurate positioning and prevent the product from moving backward during the upward bending process, thereby improving the bending accuracy.

[0071] In this embodiment, the specific structure of the second bending component 168 is as follows:

[0072] The second bending assembly 168 is fixedly mounted on the frame 101;

[0073] The second bending assembly 168 includes a third support 169, a third fixed seat 170, a third slide plate 171, and a third drive mechanism 172. The third support 169 is fixedly mounted on the frame 101, the third fixed seat 170 is inclinedly mounted on the third support 169, the third slide plate 171 is slidably mounted on the third fixed seat 170, the third slide plate 171 is connected to the third drive mechanism 172, and the third drive mechanism 172 is used to drive the third slide plate 171 to slide. A third bending roller shaft 173 is rotatably mounted on the upper end of the third slide plate 171. A second pressing mechanism 148 is provided at the pressure plate 135 located at the second bending assembly 168.

[0074] Further optimization includes a first pressure plate 160, which has the same structure as the pressure plate 135, but the length of the first pressure plate 160 is shorter than that of the pressure plate 135. The first pressure plate 160 is connected to the pressure plate 135. A lifting spring is provided between the first pressure plate 160 and the guide seat 134. The first pressure plate 160 and the guide seat 134 are slidably connected by bolts. The clamping block 164 in the second pressing mechanism 148 is located in the groove 138 on the first pressure plate 160.

[0075] In this way, when the connector terminal 154 is bent, the first pressure plate 160 moves toward the guide seat under the action of the L-shaped drive rod 163, pressing the conductive part of the connector terminal 154 extending out of the guide area 146. At the same time, the clamping block 164 tightens and fixes the fixing member 123 of the connector terminal 154, thereby achieving double fixation of the connector terminal 154.

[0076] In actual use, the first pressure plate 160 is provided with a relief slope on the side facing the second bending assembly 168, so as to form relief when making a 90° bend and eliminate the bend reset.

[0077] In this embodiment, the third drive mechanism 172 has the same structure as the second drive mechanism 128. In this embodiment, the roller 131 in the third drive mechanism 172 is rotatably mounted on the third slide plate 171.

[0078] A baffle 158 is also provided on the frame 101, and an adjustment mechanism 115 is provided on the baffle 158. Under the action of the adjustment mechanism, the sliding movement of the third drive mechanism 172 is adjusted, thereby realizing the control of the movement stroke of the third slide plate 171; thus, the bending angle of the conductive part of the connector terminal can be adjusted.

[0079] It should be noted that in actual use, the first bending component 102 is mainly used to perform 90° bending operations at the edge of the conductive part of the connector terminal 154 and at the edge away from the conductive part. Under the action of the downward bending mechanism 105, the bending angle of the edge of the conductive part of the connector terminal is adjusted to achieve the purpose of multi-angle bending.

[0080] The second bending component 168 is provided to achieve multi-angle bending of the connector terminal 154 away from the edge of the conductive part; through the first bending component 102 and the second bending component 168, multi-angle bending of the connector terminal 154 can be achieved in actual use.

[0081] The present invention enables the bending roller shaft 117 to rotate during bending, thereby reducing bending friction and effectively eliminating problems such as bending scratches.

[0082] Further optimization involves setting slots of the same width as the connector terminal 154 on both the bending roller shaft 117 and the third bending roller shaft 173 during use, effectively solving the problem of misalignment of the terminal.

[0083] This invention enables bending operations from 0° to 95° in practical use, replacing many stamping die bending methods. Furthermore, the 0°-95° ​​bending is achieved in a single, continuous process. The first pressure plate 160 and the second pressing mechanism 148 ensure accurate bending angle precision within 0.5°, while stamping die bending precision is typically limited to + / -1°. This bending mechanism is significantly superior to die bending, offering lower cost, higher efficiency, and greater versatility. It reduces the manufacturing difficulty of stamping, injection molding, and electroplating, resulting in a substantial reduction in product manufacturing costs.

[0084] Alternatively, in actual use, a touch switch is provided at the end of the adjusting bolt in the adjusting structure 115. The touch switch is connected to the telescopic rod in the first drive mechanism and the second drive mechanism through the controller. In this way, when the touch switch is touched, the reset return can be performed.

[0085] Example 2

[0086] This embodiment discloses a multi-angle bending method, which mainly uses the multi-angle bending equipment disclosed in Embodiment 1 to bend the connector terminal 154.

[0087] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0088] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-angle bending device, comprising a frame, characterized in that: It also includes a transfer assembly, a first bending assembly and a second bending assembly mounted on the frame. The transfer assembly is used to transfer the workpiece to be bent to the first bending assembly and the second bending assembly for bending operation. The first bending assembly includes a first bracket, a downward bending mechanism mounted on the first bracket, and a floating material support mechanism; The downward bending mechanism includes a first mounting base inclinedly disposed on a first bracket, a first sliding plate slidably disposed on the first mounting base, a first driving mechanism connected to the first sliding plate and used to drive the first sliding plate to move, a pressing mechanism disposed on the first sliding plate, and a bending roller shaft rotatably disposed at the lower end of the first sliding plate. The floating material support mechanism includes a second mounting base that is vertically and fixedly mounted on a first bracket, a second sliding plate that is slidably mounted on the second mounting base, and a second driving mechanism mounted on the first bracket for driving the second sliding plate to move. A bending lower die is provided at the upper end of the second sliding plate. A pressing mechanism is used to press the workpiece to be bent tightly onto the bending lower die. A bending inclined surface is provided on the bending lower die, and the bending inclined surface is tangent to the bending roller shaft. The first support is provided with an adjustment mechanism for adjusting the travel of the first slide plate; the first mounting base is inclined so that when the first slide plate moves, it can bring the connector terminal closer to the bending slope on the bending die. When bending, the first slide plate slides at a preset tilt angle, which can effectively compensate for the rebound angle of the connector terminal after bending, thereby achieving the purpose of one-step forming; the adjustment mechanism is used to adjust the travel of the first slide plate, thereby controlling the downward bending angle of the connector terminal.

2. The multi-angle bending device according to claim 1, characterized in that: The pressing mechanism includes a limiting plate, a moving plate, and a pressing block. The limiting plate is fixedly mounted on the first sliding plate, the moving plate is slidably mounted on the first sliding plate, a buffer spring is provided between the limiting plate and the first sliding plate, and the pressing block is fixedly mounted on the limiting plate and extends beyond the first sliding plate.

3. The multi-angle bending device according to claim 1, characterized in that: The second drive mechanism includes a telescopic rod, a sliding block, and a roller. The sliding block is slidably mounted on the first bracket, the telescopic rod is fixedly mounted on the first bracket and connected to the sliding block, and the roller is fixedly mounted at the lower end of the second slide plate. The sliding block has an inclined surface, and the roller contacts the inclined surface.

4. The multi-angle bending device according to claim 3, characterized in that: The first drive mechanism includes a first telescopic rod, a first sliding block, a first roller, and a first mounting plate. The first mounting plate is inclinedly mounted on a first bracket. The first telescopic rod is fixedly mounted on the first mounting plate and connected to the first sliding block, which is slidably mounted on the first mounting plate. The first sliding block has a first inclined surface. The first roller is mounted on a first sliding plate and, under the action of a tension spring, contacts the first inclined surface. The extension line of the first sliding plate is perpendicular to the first mounting plate. A fixing plate is provided at the end of the first mounting plate, and an adjustment mechanism is mounted on the fixing plate.

5. A multi-angle bending device according to claim 4, characterized in that: The adjustment mechanism includes an adjustment bolt, which is threaded onto a fixed plate, and the end of the adjustment bolt is used to contact the end face of the first sliding block.

6. A multi-angle bending device according to any one of claims 1-5, characterized in that: The transfer assembly includes a mounting frame, a guide seat, a pressure plate, a side plate, and a feeding mechanism. The guide seat has a groove on its upper side and is fixedly mounted on the mounting frame. The guide seat also has a first notch and a second notch on the side plate. After the side plate is fixedly connected to the guide seat, the first and second notches form a first guide groove, and a sliding groove and a gap are formed between the guide seat and the side plate. The pressure plate is provided with a second guide groove corresponding to the first guide groove, and the pressure plate is also provided with a clearance groove communicating with the second guide groove; the pressure plate is fixedly set on the guide seat, and a guide area is formed between the pressure plate and the guide seat; the pressure plate is provided with a plurality of first pressing mechanisms, and the pressure plate located at the first bending assembly is provided with a second pressing mechanism; the material feeding mechanism is slidably set in the slide groove, and the material feeding mechanism is used to realize intermittent material feeding of the workpiece to be bent.

7. A multi-angle bending device according to claim 6, characterized in that: The material feeding mechanism includes a reciprocating cylinder, a connecting plate, and a drive rod. The reciprocating cylinder is fixedly mounted on the mounting frame and connected to the connecting plate. The drive rod is slidably mounted in the slide groove and connected to the connecting plate. The drive rod is provided with several mounting slots, and each mounting slot is provided with a rotating block. A spring is provided between the rotating block and the bottom of the mounting slot. Under the action of the spring, the rotating block contacts the top of the slide groove. The rotating block is provided with a toggle piece that passes through the gap. The toggle piece has a right-angled triangular structure. The material feeding mechanism is used to move the workpiece to be bent to the position of the first pressing mechanism and the second pressing mechanism through the gap.

8. A multi-angle bending device according to claim 7, characterized in that: The first pressing mechanism includes an L-shaped limiting plate, a pressing block, and a pressing spring. The pressing plate is provided with a slot, the pressing block is slidably disposed in the slot and the lower end of the pressing block extends into the second guide groove, the L-shaped limiting plate is fixedly disposed on the pressing plate, and the pressing spring is located between the L-shaped limiting plate and the pressing block.

9. A multi-angle bending device according to claim 7, characterized in that: The second pressing mechanism is used to firmly hold the workpiece in place when bending it.

10. A multi-angle bending method, characterized in that: This includes using the multi-angle bending device described in any one of claims 1-9 to perform bending operations on connector terminals.

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