A terminal crimping apparatus

Abstract

The application relates to the technical field of flexible circuit board production, and discloses a terminal crimping device which comprises a terminal crimping mechanism, a feeding platform, a crimping moving platform, a terminal feeding mechanism and a positioning detection mechanism. The terminal crimping mechanism comprises an upper die mechanism, a lower die mechanism, a crimping driving mechanism, a terminal feeding mechanism and a crimping stroke adjusting mechanism, and the crimping stroke adjusting mechanism is used for adjusting the crimping stroke of the lower die mechanism. The feeding platform is used for placing products to be crimped, and sends the terminal crimping part of the products into the space between the upper die mechanism and the lower die mechanism. The crimping moving platform is used for driving the terminal crimping mechanism to move in the horizontal plane relative to the feeding platform. The terminal feeding mechanism is used for conveying the terminals into the terminal feeding mechanism. The positioning detection mechanism is used for taking photos of the products to be crimped on the feeding platform and the products after crimping. The terminal crimping device can be suitable for piercing terminals with different crimping heights, and can improve the crimping quality of the terminals.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible circuit board production, and particularly relates to a terminal crimping device. BACKGROUND

[0002] In the production process of flexible circuit boards in the vehicle-mounted industry, in order to improve production efficiency, piercing terminals, also known as paint stripping connectors or piercing wiring terminals, are used to realize one-time crimping and conduction of the terminals and the lines of the flexible circuit board. The existing terminal crimping device is mainly used for crimping the terminals of wires, and cannot be applied to crimping the terminals of flexible circuit boards with high crimping precision requirements, and cannot detect the shape of the crimped terminals. Moreover, the existing terminal crimping mechanism only supports one crimping height, and the lengths of the piercing parts of the terminals used by different products are different, resulting in different crimping strokes, so that multiple crimping mechanisms with different crimping heights need to be prepared to complete the production of different types of products, increasing the production equipment cost. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present application is to provide a terminal crimping device which can realize high-precision terminal crimping of flexible circuit boards and has good adaptability to piercing terminals with different crimping strokes.

[0004] To solve the above problems, the technical scheme adopted by the present application is as follows: a terminal crimping device, comprising: a terminal crimping mechanism, comprising an upper die mechanism, a lower die mechanism, a crimping driving mechanism, a terminal feeding mechanism and a crimping stroke adjusting mechanism, the terminal feeding mechanism is arranged on one side of the upper die mechanism and the lower die mechanism, and is used to transport terminals to between the upper die mechanism and the lower die mechanism, the lower die mechanism is connected with the crimping driving mechanism, the crimping driving mechanism is used to drive the lower die mechanism to approach the upper die mechanism, so as to crimp the terminals on the product, and the crimping stroke adjusting mechanism is used to adjust the crimping stroke of the lower die mechanism; an upper feeding platform arranged on one side of the terminal crimping mechanism is used to place the product to be crimped with terminals and send the terminal crimping part of the product into between the upper die mechanism and the lower die mechanism; a crimping moving platform connected with the terminal crimping mechanism is used to drive the terminal crimping mechanism to move relative to the upper feeding platform in the horizontal plane; a terminal feeding mechanism arranged on one side of the terminal crimping mechanism is used to transport terminals into the terminal feeding mechanism; and a positioning and detecting mechanism connected with the terminal crimping mechanism is used to take pictures of the product to be crimped on the upper feeding platform and the product after crimping, so as to position the product to be crimped with terminals and detect the crimping quality of the terminals.

[0005] Compared with the prior art, the beneficial effects of the present application are that the flexible circuit board on the feeding platform can be photographed by the positioning detection mechanism before crimping to position the flexible circuit board, thereby improving the position accuracy of terminal crimping. The positioning detection mechanism can detect the shape of the crimped terminal after crimping to detect the crimping quality of the terminal. The crimping stroke adjusting mechanism can adjust the crimping stroke of the lower die mechanism, so that the equipment can crimp the piercing terminals with different crimping strokes, improve the adaptability of the equipment, reduce the number of equipment types required, and reduce the production cost.

[0006] The terminal crimping equipment described above, the crimping moving platform comprises an X-axis driving mechanism and a Y-axis driving mechanism, the Y-axis driving mechanism is arranged on the X-axis driving mechanism, and the terminal crimping mechanism and the positioning detection mechanism are arranged on the Y-axis driving mechanism.

[0007] The terminal crimping equipment described above, the positioning detection mechanism comprises a detection platform, a backlight source, a coaxial light source and a detection camera, the detection camera is arranged above the detection platform, the coaxial light source is arranged between the detection camera and the detection platform, the backlight source is arranged in the detection platform, and a glass plate through which the backlight emitted by the backlight source can pass is embedded on the tabletop of the detection platform.

[0008] The terminal crimping equipment described above, the feeding platform comprises a bearing platform, a platform longitudinal movement driving mechanism and a pressing mechanism, the tabletop of the bearing platform is provided with a containing groove matched with the product shape of the terminal to be crimped, a plurality of suction holes are arranged in the containing groove, a cavity communicating with the suction holes is arranged in the bearing platform, the cavity communicates with a vacuum source, the bearing platform is arranged on the platform longitudinal movement driving mechanism, the platform longitudinal movement driving mechanism is used to drive the bearing platform to reciprocate horizontally in a direction perpendicular to the feeding direction of the terminal, one end of the bearing platform towards the terminal crimping mechanism is provided with a pressing plate, and the pressing mechanism is arranged at the end of the movement stroke of the bearing platform close to the terminal crimping mechanism. When the bearing platform is located at the end of the movement stroke close to the terminal crimping mechanism, the pressing mechanism can be pressed onto the pressing plate.

[0009] The terminal crimping equipment described above, the terminal feeding mechanism comprises a feeding shaft, an isolation paper recycling shaft and a terminal guide groove, the feeding shaft is rotatably arranged on a rack, the feeding shaft is used to place terminal roll material, the isolation paper recycling shaft is rotatably arranged on one side of the feeding shaft, the isolation paper recycling shaft can rotate under the drive of a recycling driving motor, and the terminal guide groove is fixedly arranged on one side of the feeding shaft. The terminal guide groove is used to guide the terminals discharged from the terminal roll material to the terminal feeding mechanism.

[0010] The terminal crimping device, the crimping drive mechanism comprises a crimping drive device and a sliding frame, the lower die mechanism is slidingly arranged in the sliding frame, the lower die mechanism can slide along the sliding frame under the drive of the crimping drive device, the upper end of the sliding frame is provided with a cutting outer cutter, the cutting outer cutter is provided with a frame flow channel through which the frame of the terminal can pass, the lower die mechanism comprises a lower die sliding block, a terminal limiting block and a cutting inner cutter, the terminal limiting block is slidingly connected with the lower die sliding block, the upper end of the terminal limiting block is provided with a sliding channel with a width matched with the width of the terminal, the crimping stroke adjusting mechanism is arranged on the sliding frame, the upper end of the cutting inner cutter is slidingly arranged in the sliding channel, the cutting inner cutter is connected with the lower die sliding block through the crimping stroke adjusting mechanism, and the cutting elastic element is arranged between the terminal limiting block and the crimping stroke adjusting mechanism, when the lower die mechanism approaches the upper die mechanism, the cutting inner cutter cooperates with the cutting outer cutter to separate the terminal from the frame of the terminal.

[0011] The terminal crimping device, the crimping stroke adjusting mechanism comprises an adjusting sliding block, a locking mechanism, an adjusting eccentric shaft, an adjusting mounting plate and an adjusting handle, the adjusting sliding block is slidingly arranged in the lower die sliding block, the adjusting sliding block is provided with an adjusting groove, the adjusting eccentric shaft passes through the adjusting groove, the eccentric part of the adjusting eccentric shaft is located in the adjusting groove, the adjusting mounting plate is connected with the lower die sliding block, the two ends of the adjusting eccentric shaft are rotatably connected with the lower die sliding block and the adjusting mounting plate respectively, the adjusting handle is arranged at one end of the adjusting eccentric shaft, the adjusting handle is arranged on the outer side of the adjusting mounting plate, the locking mechanism is arranged on the adjusting mounting plate, the locking mechanism is used for locking the position of the adjusting handle, the cutting inner cutter is connected with the adjusting sliding block, and the cutting elastic element is arranged between the terminal limiting block and the adjusting sliding block.

[0012] The terminal crimping device, the upper end surface of the lower die sliding block is provided with an auxiliary support, the upper end of the auxiliary support is provided with a support groove with a width matched with the width of the terminal, and the auxiliary support is used for supporting the connecting portion of the terminal.

[0013] The terminal crimping device, the upper die mechanism comprises an upper die mounting block, a forming cutter and a forming auxiliary head, the forming cutter is arranged at one end of the upper die mounting block facing the lower die mechanism, one end of the forming cutter facing the lower die mechanism is provided with a forming groove for crimping and forming the piercing portion of the terminal, the forming auxiliary head is slidingly arranged in the upper die mounting block, the shape of the forming auxiliary head is matched with the shape of the auxiliary support, the upper die mounting block is provided with an auxiliary head driving device, the auxiliary head driving device is used for driving the forming auxiliary head to press on the lower die mechanism, and the side, away from the forming auxiliary head, of the forming cutter is provided with a guide baffle.

[0014] In the above-mentioned terminal crimping device, a positioning pin is slidably provided in the terminal positioning block, the shape of the positioning pin matches the positioning hole on the terminal frame, and a positioning elastic member is provided between the lower end of the positioning pin and the crimping stroke adjustment mechanism.

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a terminal crimping device according to an embodiment of the present invention;

[0017] Figure 2 This is a structural diagram of a crimping mobile platform according to an embodiment of the present invention;

[0018] Figure 3 A side view of a positioning detection mechanism according to an embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the loading platform according to an embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the terminal feeding mechanism according to an embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the three-dimensional structure of the terminal crimping mechanism according to an embodiment of the present invention;

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the lower mold part of an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of the three-dimensional structure of the lower mold part of an embodiment of the present invention from another perspective;

[0024] Figure 9 is a cross-sectional view of a crimping drive mechanism according to an embodiment of the present invention;

[0025] Figure 10 A rear view of the lower die slide according to an embodiment of the present invention;

[0026] Figure 11 A rear view of the lower mold mechanism according to an embodiment of the present invention;

[0027] Figure 12 is a cross-sectional view of a crimping stroke adjustment mechanism according to an embodiment of the present invention;

[0028] Figure 13 Schematic diagram of the three-dimensional structure of the upper mold mechanism according to an embodiment of the present invention;

[0029] Figure 14 Schematic diagram of the internal structure of the upper mold mechanism according to an embodiment of the present invention;

[0030] Figure 15 A partially enlarged schematic diagram of a forming knife according to an embodiment of the present invention;

[0031] Figure 16 It is a schematic diagram of the three-dimensional structure of the terminal feeding mechanism according to an embodiment of the present invention.

[0032] Description of Figure Numbers:

[0033] 100 terminal crimping mechanism, 110 upper die mechanism, 111 upper die mounting block, 112 forming knife, 1121 guide baffle, 113 forming auxiliary head, 114 auxiliary head drive device, 115 pressure sensor, 120 lower die mechanism, 121 lower die slide, 1211 auxiliary bracket, 122 terminal limit block, 1221 positioning pin, 1222 positioning elastic member, 123 cutting inner knife, 124 cutting elastic member, 125 waste cutting knife, 12 6 guide wedge, 130 crimping drive mechanism, 131 sliding frame, 1311 cutting outer knife, 1312 product connection plate, 1313 outer sealing plate, 132 crimping eccentric shaft, 133 crimping slider, 140 terminal feeding mechanism, 141 terminal limit plate, 142 terminal flow channel, 143 feeding gear, 144 feeding drive motor, 145 clutch drive mechanism, 150 crimping stroke adjustment mechanism, 151 adjustment slider, 1511 adapter block, 15 2 Adjusting mounting plate, 153 Adjusting eccentric shaft, 154 Adjusting handle, 155 Locking mechanism, 1551 Locking tooth plate, 1552 Locking elastic member, 1553 Locking pin, 160 Waste recovery box, 161 Waste door, 162 Waste drive mechanism, 200 Loading platform, 210 Carrying platform, 211 Accommodating slot, 212 Lower pressure plate, 220 Platform longitudinal movement drive mechanism, 230 Pressing mechanism, 231 Lower pressure beam, 232 Upper pressure plate, 23 3 pressing drive mechanism, 300 crimping moving platform, 310X-axis drive mechanism, 320Y-axis drive mechanism, 400 terminal loading mechanism, 410 unloading shaft, 411 damping mechanism, 420 isolation paper recovery shaft, 421 recovery drive motor, 430 terminal guide groove, 500 positioning detection mechanism, 510 detection platform, 511 glass plate, 520 backlight source, 530 detection camera, 540 coaxial light source, 550 avoidance drive mechanism. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. Figure 1An embodiment of the present invention provides a terminal crimping device, comprising a terminal crimping mechanism 100, a loading platform 200, a crimping moving platform 300, a terminal loading mechanism 400, and a positioning detection mechanism 500. The terminal crimping mechanism 100 comprises an upper die mechanism 110, a lower die mechanism 120, a crimping drive mechanism 130, a terminal feeding mechanism 140, and a crimping stroke adjustment mechanism 150. The terminal feeding mechanism 140 is arranged on one side of the upper die mechanism 110 and the lower die mechanism 120, and is used to transport the pierced terminal to be crimped between the upper die mechanism 110 and the lower die mechanism 120. The lower die mechanism 120 is connected to the crimping drive mechanism 130, and can approach the upper die mechanism 110 under the drive of the crimping drive mechanism 130, so as to cooperate with the upper die mechanism 110 to crimp the terminal on the product. The crimping stroke adjustment mechanism 150 is used to adjust the crimping stroke of the lower die mechanism 120. The loading platform 200 is arranged on one side of the terminal crimping mechanism 100, and is used to place the flexible circuit board with the terminal to be crimped, and to feed the terminal crimping part of the product between the upper mold mechanism 110 and the lower mold mechanism 120. The terminal crimping mechanism 100 is connected to the crimping moving platform 300, and the crimping moving platform 300 is used to drive the terminal crimping mechanism 100 to move in the horizontal plane relative to the loading platform 200. The terminal loading mechanism 400 is arranged on one side of the terminal crimping mechanism 100, and is used to transport the terminal to the terminal feeding mechanism 140. The positioning detection mechanism 500 is connected to the terminal crimping mechanism 100, and is used to take pictures of the product to be crimped and the product after crimping on the loading platform 200, so as to locate the position of the flexible circuit board to be crimped, and to detect the crimping quality of the crimped terminal.

[0035] During operation, the terminal crimping device manually places the flexible circuit board to be crimped onto the loading platform 200. The portion of the circuit on the flexible circuit board that requires crimping terminals, i.e., the terminal crimping portion, protrudes from the loading platform 200, allowing it to penetrate into the positioning and detection mechanism 500 and the terminal crimping mechanism 100. The crimping mobile platform 300 drives the terminal crimping mechanism 100, first causing the terminal crimping portion on the loading platform 200 to extend into the positioning and detection mechanism 500, allowing the positioning and detection mechanism 500 to photograph and locate the flexible circuit board on the loading platform 200. The crimping mobile platform 300 then drives the terminal crimping mechanism 100 to move, causing the terminal crimping portion of the flexible circuit board to extend between the upper and lower mold mechanisms 110, 120. The lower and upper mold mechanisms 120 cooperate with the upper and lower mold mechanisms 110 to crimp the terminal onto the terminal crimping portion of the flexible short-circuit board. After crimping is completed, the crimping mobile platform 300 drives the terminal crimping mechanism 100 to move, so that the crimped terminal is re-extended into the positioning detection mechanism 500, and the crimped terminal is photographed to detect the crimping quality of the crimped terminal. The terminal crimping device takes a photo and positions the flexible circuit board through the positioning detection mechanism 500 before crimping, thereby improving the success rate of terminal crimping of the flexible circuit board, and detects the quality of the crimped terminal after crimping to ensure the quality of the product. At the same time, the terminal crimping device can also adjust the crimping stroke of the lower mold mechanism 120 through the crimping stroke adjustment mechanism 150, so that the terminal crimping mechanism 100 can adapt to the crimping of puncture terminals with different crimping heights, thereby improving the adaptability of the terminal crimping device to terminals of different models, thereby reducing the number of types of terminal crimping devices required and reducing production costs.

[0036] Reference Figure 2 In this embodiment, the crimping mobile platform 300 includes an X-axis drive mechanism 310 and a Y-axis drive mechanism 320. The terminal crimping mechanism 100 and the positioning detection mechanism 500 are arranged on the Y-axis drive mechanism 320, and the Y-axis drive mechanism 320 is arranged on the X-axis drive mechanism 310. The terminal crimping mechanism 100 and the positioning detection mechanism 500 can move relative to the loading platform 200 in a horizontal plane under the drive of the X-axis drive mechanism 310 and the Y-axis drive mechanism 320, so as to take pictures and position the flexible circuit board on the loading platform 200, crimp the terminals at different positions on the flexible circuit board, and perform AVI inspection on the terminals after crimping.

[0037] Reference Figure 2 and Figure 3In this embodiment, the positioning detection mechanism 500 includes a detection platform 510, a backlight source 520, a coaxial light source 540 and a detection camera 530. The detection camera 530 is arranged above the detection platform 510, and the coaxial light source 540 is arranged between the detection camera 530 and the detection platform 510. The backlight source 520 is arranged in the detection platform 510, and a glass plate 511 is embedded on the surface of the detection platform 510 for the backlight emitted by the backlight source 520 to pass through. When it is necessary to take a picture and position the flexible circuit board on the loading platform 200, the backlight emitted by the backlight source 520 can clearly illuminate the marking features on the flexible circuit board; when it is necessary to detect the crimping quality of the terminals crimped on the flexible circuit board on the loading platform 200, the coaxial light source 540 can illuminate the terminals crimped on the flexible circuit board without shadows, so that the detection camera 530 can capture a clear image of the terminal, thereby improving the detection accuracy of the crimping quality of the terminal. Refer to Figure 3 Since the coaxial light source 540 is large in size, it may interfere with other mechanisms during the terminal crimping process. Therefore, in this embodiment, the coaxial light source 540 is set on the support structure of the terminal crimping mechanism 100 through the avoidance driving mechanism 550. The coaxial light source 540 can be driven by the avoidance driving mechanism 550 relative to the terminal crimping mechanism 100 in the horizontal direction perpendicular to the feeding direction of the terminal. When it is necessary to take pictures, it extends forward to the top of the detection platform 510. When it is not necessary to take pictures, it retracts a distance backward to avoid collision and interference with other mechanisms during the crimping process.

[0038] Reference Figure 4In this embodiment, the loading platform 200 includes a carrying platform 210, a platform longitudinal movement mechanism, and a pressing mechanism 230. A receiving groove 211 matching the shape of the flexible circuit board of the terminal to be crimped is provided on the surface of the carrying platform 210. A plurality of adsorption holes are provided in the receiving groove 211. A cavity connected to the adsorption holes is provided in the carrying platform 210. The cavity is connected to the vacuum source. The carrying platform 210 can adsorb the flexible circuit board in the receiving groove 211 through the adsorption holes. A lower pressing plate 212 is provided at one end of the carrying platform 210 facing the terminal crimping mechanism 100. The carrying platform 210 is provided on a platform longitudinal movement driving mechanism 220. The platform longitudinal movement driving mechanism 220 is used to drive the carrying platform 210 to reciprocate in a horizontal direction perpendicular to the feeding direction of the terminal. The pressing mechanism 230 is located at the end of the travel range of the carrying platform 210 near the terminal crimping mechanism 100. When the carrying platform 210 is at the end of its travel range near the terminal crimping mechanism 100, the pressing mechanism 230 can press down onto the lower pressing plate 212. During loading, the platform longitudinal drive mechanism 220 drives the carrying platform 210 to move outward. The operator places the flexible circuit board into the receiving groove 211, so that the terminal crimping portion of the flexible circuit board extends out of the rear end of the lower pressing plate 212. The operator then activates the suction function of the carrying platform 210 to suction the flexible circuit board into the receiving groove 211. The platform longitudinal drive mechanism then drives the carrying platform 210 toward the terminal crimping mechanism 100, causing the lower pressing plate 212 to come under the pressing mechanism 230, and the pressing mechanism 230 presses down onto the lower pressing plate 212. After the terminals are crimped and inspected, the pressing mechanism 230 and the platform longitudinal driving mechanism 220 are reset in succession, and the carrying platform 210 turns off the adsorption function, making it easier for the operator to remove the flexible circuit board after the terminals are crimped.

[0039] Reference Figure 4 In this embodiment, the pressing mechanism 230 includes a downward pressing beam 231 and a pressing drive mechanism 233. The downward pressing beam 231 is movably mounted on the support structure of the platform longitudinal drive mechanism 220 via the pressing drive mechanism 233. An upper pressing plate 232, whose shape matches the lower pressing plate 212, is disposed at the rear end of the downward pressing beam 231. The pressing drive mechanism 233 is used to drive the downward pressing beam 231 to move vertically upward and downward. When the supporting platform 210 moves below the pressing mechanism 230, the pressing drive mechanism 233 drives the upper pressing plate 232 to press against the lower pressing plate 212, securing the base of the terminal crimping portion of the flexible printed circuit board. This prevents deformation of the terminal crimping portion during the crimping process, thereby ensuring the quality of the terminal crimping.

[0040] Reference Figure 1 and Figure 5In this embodiment, the terminal feeding mechanism 400 includes a discharge shaft 410, a release paper recovery shaft 420, and a terminal guide groove 430. The discharge shaft 410 is rotatably mounted on the frame and is used to place the terminal coil. The release paper recovery shaft 420 is rotatably mounted on one side of the discharge shaft 410. Driven by a recovery drive motor 421, the release paper recovery shaft 420 can rotate to recover the release paper in the terminal coil into a roll. The terminal guide groove 430 is fixedly mounted on one side of the discharge shaft 410 and is used to guide the terminals discharged from the terminal coil to the input end of the terminal feeding mechanism 140. In this embodiment, both the discharge shaft 410 and the release paper recovery shaft 420 are provided with two side baffles. The terminal coil or the recovered release paper coil is arranged between the two side baffles to prevent the coil from spreading during the unwinding or rewinding process. The terminal guide groove 430 is an arc-shaped guide groove. The coiled material discharged from the discharge shaft 410 enters the lower end of the terminal guide groove 430, flows out of the upper end of the terminal guide groove 430 to the upper side of the support platform of the frame, and enters the terminal flow channel 142 of the terminal feeding mechanism 140. To further improve the stability of the terminal coil discharge, the discharge shaft 410 is equipped with a damping mechanism 411 at the rotational connection between the discharge shaft 410 and its bracket. The damping mechanism 411 includes an abutment block and an adjustment block. The abutment block is slidably connected to the adjustment block. The abutment block is provided with a friction rubber block that abuts the circumference of the discharge shaft 410. A spring is interposed between the abutment block and the adjustment block. The spring force can be adjusted by adjusting the relative position of the abutment block and the adjustment block, thereby adjusting the pressure between the friction rubber block and the discharge shaft 410, thereby adjusting the damping of the discharge shaft 410.

[0041] Reference Figures 6 to 12In this embodiment, the crimping drive mechanism 130 includes a crimping drive device and a sliding frame 131. The lower mold mechanism 120 is slidably arranged in the sliding frame 131. The lower mold mechanism 120 can slide along the sliding frame 131 under the drive of the crimping drive device. A cutting outer knife 1311 is provided at the upper end of the sliding frame 131. The cutting outer knife 1311 is provided with a frame flow channel for the terminal frame to pass through. The lower mold mechanism 120 includes a lower mold slider 121, a terminal limit block 122 and a cutting inner knife 123. The terminal limit block 122 is slidably connected to the lower mold slider 121. The upper end of the terminal limit block 122 is provided with a slideway whose width matches the width of the terminal. The crimping stroke adjustment mechanism 150 is arranged on the sliding frame 131, the cutting inner knife 123 is slidably set in the terminal limit block 122, the blade part of the upper end of the cutting inner knife 123 is slidably set in the slide, and the cutting inner knife 123 is connected to the lower mold slider 121 through the crimping stroke adjustment mechanism 150 and the terminal limit block 122. A cutting elastic part 124 is arranged between the terminal limit block 122 and the crimping stroke adjustment mechanism 150. When the lower mold mechanism 120 approaches the upper mold mechanism 110 under the drive of the crimping drive device, the terminal limit block 122 and the cutting inner knife 123 move toward the upper mold mechanism 110, so that the terminal falls into the terminal limit block 122. When the terminal limit block 122 contacts the upper mold mechanism 110, the terminal limit block 122 stops moving, and the cutting inner knife 123 is then lifted and contacts the terminal in the slide, and cooperates with the cutting outer knife 1311 to cut the terminal from its frame, and continues to press the cut terminal toward the upper mold mechanism 110, so that the puncture part of the terminal pierces the product passing between the upper mold mechanism 110 and the lower mold mechanism 120, and is folded inward under the pressure between the upper mold mechanism 110 and the lower mold mechanism 120. The crimping stroke adjustment mechanism 150 can adjust the maximum stroke of the terminal limit block 122 and the cutting inner knife 123 by adjusting the hard limit position of the terminal limit block 122, thereby adjusting the crimping stroke. Figure 8 In this embodiment, the longitudinal section of the upper end of the terminal limit block 122 is triangular to avoid interference between the terminal limit block 122 and other mechanisms during movement and to reduce the contact area between the terminal limit block 122 and the product during crimping. During the crimping process, the terminal falls into the slide of the terminal limit block 122, so that the piercing portion of the terminal can only be folded inward and fitted on the product line under the cooperation of the cutting inner knife 123 and the upper mold mechanism 110, thereby ensuring the crimping quality. Figure 11In this embodiment, limiting grooves are provided on both sides of the sliding groove of the terminal limiting block 122, and limiting bosses are provided on both sides of the cutting inner knife 123. The limiting bosses can move in the limiting grooves on the corresponding sides as the cutting inner knife 123 moves. The limiting grooves and the limiting bosses cooperate to limit the maximum stroke of the cutting inner knife 123 relative to the terminal limiting groove, preventing the blade of the upper end of the cutting inner knife 123 from extending out of the terminal limiting groove, causing the blade of the cutting inner knife 123 to be damaged.

[0042] It is understandable that the crimping stroke adjustment mechanism 150 can be a position-adjustable limit slider or limit bolt, etc. Figure 7 、 Figure 9 、 Figure 11 and Figure 12 In this embodiment, the crimping stroke adjustment mechanism 150 includes an adjustment slider 151, a locking mechanism 155, an adjustment eccentric shaft 153, an adjustment mounting plate 152, and an adjustment handle 154. The adjustment slider 151 is slidably mounted within the chute of the lower die slider 121. The adjustment slider 151 is provided with an adjustment slot, through which the adjustment eccentric shaft 153 passes, with the eccentric portion of the adjustment eccentric shaft 153 positioned. The adjustment mounting plate 152 is connected to the lower die slider 121. The ends of the adjustment eccentric shaft 153 are rotatably connected to the lower die slider 121 and the adjustment mounting plate 152, respectively. The adjustment handle 154 is disposed at one end of the adjustment eccentric shaft and is located outside the adjustment mounting plate 152. A locking mechanism 155 is provided on the adjustment mounting plate 152 and is used to lock the position of the adjustment handle 154. The inner cutting blade 123 is connected to the adjustment slider 151, and the cutting elastic member 124 is disposed between the terminal stop block 122 and the adjustment slider 151. To adjust the crimping stroke, unlock the locking mechanism 155 and rotate the adjustment handle 154, which rotates the adjustment eccentric shaft 153. The cam mechanism formed by the eccentric portion and the adjustment slot drives the adjustment slider 151 to slide along the slide slot of the lower die slider 121, thereby changing the initial position of the cutting inner blade 123 connected to the adjustment slider 151 relative to the lower die slider 121, thereby adjusting the crimping stroke. After adjustment, relock the adjustment handle 154 using the locking mechanism 155 to fix the adjustment result. It can be understood that the adjustment slot is a waist-shaped hole with a width that matches the diameter of the eccentric portion.

[0043] It is understood that the locking mechanism 155 can use a latch or a bolt to lock the adjustment handle 154 and the adjustment mounting plate 152. Figure 7 、 Figure 9 、 Figure 11 and Figure 12In the embodiment, the locking mechanism 155 comprises a locking rack 1551 and a locking pin 1553, the locking pin 1553 is rotatably arranged at the end of the adjusting handle 154 away from the adjusting eccentric shaft 153, the edge of the locking rack 1551 at the end of the terminal limiting block 122 is arc-shaped, and the arc-shaped edge of the locking rack 1551 is provided with locking teeth. The locking pin 1553 is provided with a locking boss matched with the tooth groove of the locking teeth, the locking boss is arranged on the inner side surface of the locking pin 1553, and the locking elastic member 1552 is arranged between the locking pin 1553 and the adjusting handle 154. The locking elastic member 1552 continuously applies a pushing force to the locking pin 1553 in the direction of the locking rack 1551, so that the locking boss is inserted into any tooth groove of the locking teeth. When adjustment is needed, the locking pin 1553 is pulled outward, so that the locking boss is separated from the tooth groove of the locking teeth, thereby the adjusting handle 154 can be rotated to drive the adjusting eccentric shaft 153 to rotate, and the adjustment of the pressing stroke of the lower mold mechanism 120 is realized. After the adjustment is completed, the locking pin 1553 is released, and the locking pin 1553 is inserted into the corresponding tooth groove under the elastic force of the locking elastic member 1552, so that the position of the adjusting handle 154 is locked again.

[0044] With reference to Figure 11 and Figure 12 , in order to facilitate the replacement of the cutting inner blade 123, the cutting inner blade 123 is connected with the adjusting sliding block 151 through the adapter block 1511, the adjusting sliding block 151 and the adapter block 1511 are connected through a tenon joint mode which is easy to disassemble, the outer side of the lower mold sliding block 121 is provided with a semi-open sliding groove, the outer side of the sliding frame 131 is also provided with a semi-open sliding groove, the lower mold sliding block 121 is slidingly arranged in the sliding groove of the sliding frame 131, and the outer side of the sliding frame 131 is provided with a detachable outer cover plate 1313. The lower mold sliding block 121, the terminal limiting block 122, the adjusting sliding block 151 and the adapter block 1511 on the lower mold sliding block 121 are limited in the sliding groove of the sliding frame 131 by the outer cover plate 1313. The lower end of the cutting inner blade 123 and the upper end of the adapter block 1511 are provided with plug-in structures, the cutting inner blade 123 is detachably connected with the adapter block 1511 through the plug-in structures, and the cutting inner blade 123 and the adapter block 1511 after plugging are inseparable in the movement direction of the lower mold mechanism 120. The cutting elastic member 124 is arranged between the terminal limiting block 122 and the adapter block 1511.

[0045] With reference to Figure 8 , Figure 9 and Figure 12In this embodiment, an auxiliary bracket 1211 is provided on the upper end surface of the lower mold slider 121. The upper end of the auxiliary bracket 1211 is provided with a support groove whose width matches the width of the terminal. The auxiliary bracket 1211 is used to support the connecting part of the terminal during the crimping process, thereby preventing the non-puncture part of the terminal from being deformed during the crimping process. The connecting part of the terminal will fall into the support groove during the lifting process of the auxiliary bracket 1211. A positioning pin 1221 is slidingly provided in the terminal positioning block. The shape of the positioning pin 1221 matches the positioning hole on the frame of the terminal. A positioning elastic member 1222 is provided between the lower end of the positioning pin 1221 and the adapter block 1511. During the crimping process, the positioning pin 1221 approaches the upper mold mechanism 110 along with the terminal limit block 122, and is first inserted into the positioning hole on the frame of the terminal to ensure that the terminal can fall into the slide of the limit terminal block to ensure the crimping accuracy.

[0046] It is understandable that the crimping drive device can adopt a linear drive mechanism such as a cylinder or an electric cylinder. Figure 6 、 Figure 8 、 Figure 9 and Figure 10 In this embodiment, the crimping drive device drives the lower die mechanism 120 via a cam mechanism. A crimping chute is provided on the lower die slide 121, within which a crimping slider 133 is disposed. A crimping eccentric shaft 132 is rotatably mounted on the slide frame 131. The output end of the crimping eccentric shaft 132 is rotatably connected to the crimping slider 133, while the input end of the crimping eccentric shaft 132 is axially connected to the output shaft of the crimping drive motor. The crimping drive motor rotates the crimping eccentric shaft 132, thereby driving the output end of the crimping eccentric shaft 132 to eccentrically rotate, thereby driving the lower die slide 121 to reciprocate along the chute of the slide frame 131.

[0047] Reference Figure 7 In this embodiment, a product connection plate 1312 is provided on the upper end of the slide 131, facing away from the terminal feed mechanism 140. This plate supports the product to be crimped. A scrap cutter 125 is provided on the side of the lower mold slide 121, facing away from the terminal feed mechanism 140. When the lower mold mechanism 120 moves, the scrap cutter 125 follows its movement and cooperates with the product connection plate 1312 to cut the frame scrap remaining after the terminals are removed, facilitating its recycling.

[0048] Reference Figure 7In order to further facilitate the recycling of frame waste, the sliding frame 131 is provided with a waste recycling box 160 on the side away from the terminal feeding mechanism 140. The upper end of the waste recycling box 160 is provided with a waste inlet, and the lower end is provided with a waste outlet. A waste door 161 is provided on the waste outlet and can be opened and closed under the drive of a waste driving mechanism 162. The lower side of the waste cutting knife 125 is provided with a guide wedge 126 for guiding the cut end of the frame waste to the waste inlet. When the frame waste is cut by the waste cutting knife 125, the cut frame section flows into the waste recycling box 160 along the wedge surface of the upper end of the guide wedge 126. When the waste recycling box 160 is full of waste, the waste door 161 can be opened by the waste driving mechanism 162 to empty the waste recycling box 160. In this embodiment, the waste door 161 is hinged to the waste recycling box 160, and a sliding table cylinder is provided on the waste recycling box 160. The sliding table of the sliding table cylinder is connected to the waste door 161 through a connecting rod, and the two ends of the connecting rod are rotatably connected to the sliding table of the sliding table cylinder and the waste door 161.

[0049] Referring to Figure 13 and Figure 14 In this embodiment, the upper die mechanism 110 includes an upper die mounting block 111, a forming knife 112, and a forming auxiliary head 113. The forming knife 112 is arranged at one end of the upper die mounting block 111 facing the lower die mechanism 120. The end of the forming knife 112 facing the lower die mechanism 120 is provided with a forming groove for crimping the piercing part of the terminal. The forming auxiliary head 113 is slidingly arranged in the upper die mounting block 111. The shape of the end of the forming auxiliary head 113 facing the lower die mechanism 120 matches the shape of the auxiliary support 1211. The upper die mounting block 111 is provided with an auxiliary head driving device 114, which drives the forming auxiliary head 113 to press on the lower die mechanism 120. Referring to Figure 15 In this embodiment, the lower end of the forming knife 112 is provided with two arc-shaped forming grooves side by side. The two forming grooves guide the inward bending of the two sides of the terminal piercing part, so that the terminal is electrically connected to the circuit on the product and is buckled on the product. In this embodiment, the auxiliary head driving device 114 uses a cylinder. During crimping, the auxiliary head driving device 114 synchronously drives the forming auxiliary head 113 to extend towards the auxiliary support 1211, pressing the terminal on the auxiliary support 1211. Then the auxiliary head driving device 114 acts as a spring to ensure that the position of the terminal does not change during the crimping process, thereby ensuring the crimping accuracy of the terminal. Referring to Figure 8 and Fig. In this embodiment, the outer side of the forming knife 112 is provided with a guide baffle 1121, which blocks part of the outer end of the forming groove, further avoiding the longitudinal outward movement of the terminal during crimping.

[0050] Referring to Figure 14In the embodiment, a pressure sensor 115 is arranged between the upper end of the forming knife 112 and the upper die mounting block 111 to collect the crimping pressure, so as to better control the crimping forming effect. The forming knife 112 is arranged in a cavity in the upper die mounting block 111, and a small gap exists between the forming knife 112 and the side wall of the cavity of the upper die mounting block 111, so as to facilitate the pressure sensor 115 to collect the pressure received by the forming knife 112.

[0051] It can be understood that the terminal feeding mechanism 140 should include a terminal flow channel 142 through which the frame of the terminal flows, and a terminal driving mechanism for driving the terminal to flow along the flow channel, which can be a conveyor belt or a conveyor wheel mechanism, etc. Referring to Figure 16 In the embodiment, the terminal driving mechanism includes a feeding gear 143 and a feeding driving motor 144, the feeding gear 143 is connected with the output shaft of the feeding driving motor 144, and the spacing between the teeth on the feeding gear 143 is equal to the spacing of the positioning holes on the frame of the terminal. The lower side of the terminal flow channel 142 is provided with a insertion hole through which the feeding gear 143 can be inserted, and the terminal flow channel 142 is arranged on the clutch driving mechanism 145. The terminal flow channel 142 can be driven by the clutch driving mechanism 145 to move up and down in the vertical direction, so that the feeding gear 143 can be inserted into the terminal flow channel 142 or separated from the terminal flow channel 142. When the feeding gear 143 is inserted into the terminal flow channel 142, the teeth of the feeding gear 143 can be inserted into the positioning holes on the frame of the terminal, so that the feeding driving motor 144 can realize equidistant conveying of the terminal by rotating the feeding gear 143. The input end of the terminal flow channel 142 is provided with an arc-shaped terminal limiting plate 141, and the two sides of the terminal limiting plate 141 are provided with side baffles. The terminals discharged from the discharging shaft 410 enter the terminal flow channel 142 along the terminal limiting block, and the side baffles are used to limit the swing amplitude of the terminals when the terminal crimping mechanism moves, so as to avoid that the terminals swing too much and cause the frame of the terminal to deform greatly, which affects the terminal to enter the terminal flow channel 142.

[0052] It can be understood that the X-axis driving mechanism 310, the Y-axis driving mechanism 320, the material pressing driving mechanism 233, the platform longitudinal movement driving mechanism 220 and the avoiding driving mechanism 550 can be linear driving mechanisms composed of driving devices such as motors, air cylinders or electric cylinders and transmission and guide devices such as sliding rails, guide rods and screw pairs. The specific structures of them are well known in the art, and will not be described here.

[0053] It should be noted that in the description of the present invention, if there are any descriptions of directions, such as up, down, front, back, left, right, etc., the directions or positional relationships indicated are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction, and cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If there are descriptions of "first," "second," and so on, these are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0055] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0056] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A terminal crimping device, characterized in that, include: A terminal crimping mechanism (100) comprises an upper die mechanism (110), a lower die mechanism (120), a crimping drive mechanism (130), a terminal feeding mechanism (140) and a crimping stroke adjustment mechanism (150), wherein the terminal feeding mechanism (140) is arranged on one side of the upper die mechanism (110) and the lower die mechanism (120) and is used to transport the terminal between the upper die mechanism (110) and the lower die mechanism (120), the lower die mechanism (120) is connected to the crimping drive mechanism (130), the crimping drive mechanism (130) is used to drive the lower die mechanism (120) to approach the upper die mechanism (110) so as to crimp the terminal onto the product, and the crimping stroke adjustment mechanism (150) is used to adjust the crimping stroke of the lower die mechanism (120); A loading platform (200) is provided on one side of the terminal crimping mechanism (100) and is used to place a product to be crimped with a terminal and to feed the terminal crimping portion of the product between the upper die mechanism (110) and the lower die mechanism (120); A crimping movable platform (300) connected to the terminal crimping mechanism (100) and used to drive the terminal crimping mechanism (100) to move in a horizontal plane relative to the loading platform (200); A terminal loading mechanism (400) is provided on one side of the terminal crimping mechanism (100) and is used to transport the terminal to the terminal feeding mechanism (140); a positioning detection mechanism (500), connected to the terminal crimping mechanism (100), for taking photos of the product to be crimped and the product after crimping on the loading platform (200), so as to locate the product to be crimped with the terminal and detect the crimping quality of the terminal; The crimping drive mechanism (130) includes a crimping drive device and a sliding frame (131), the lower mold mechanism (120) is slidably arranged in the sliding frame (131), and the lower mold mechanism (120) can slide along the sliding frame (131) under the drive of the crimping drive device, and the upper end of the sliding frame (131) is provided with a cutting outer knife (1311), and the cutting outer knife (1311) is provided with a frame flow channel for the terminal frame to pass through, the lower mold mechanism (120) includes a lower mold slider (121), a terminal limit block (122) and a cutting inner knife (123), the terminal limit block (122) is slidably connected to the lower mold slider (121), and ... The upper end of the terminal limit block (122) is provided with a slideway whose width matches the width of the terminal, the crimping stroke adjustment mechanism (150) is provided on the sliding frame (131), the upper end of the cutting inner knife (123) is slidably provided in the slideway, the cutting inner knife (123) is connected to the lower mold slider (121) through the crimping stroke adjustment mechanism (150), and a cutting elastic member (124) is provided between the terminal limit block (122) and the crimping stroke adjustment mechanism (150). When the lower mold mechanism (120) approaches the upper mold mechanism (110), the cutting inner knife (123) cooperates with the cutting outer knife (1311) to separate the terminal from the terminal frame.

2. The terminal crimping device according to claim 1, characterized in that The crimping mobile platform (300) comprises an X-axis drive mechanism (310) and a Y-axis drive mechanism (320), wherein the Y-axis drive mechanism (320) is arranged on the X-axis drive mechanism (310), and the terminal crimping mechanism (100) and the positioning detection mechanism (500) are arranged on the Y-axis drive mechanism (320).

3. The terminal crimping device according to claim 1, characterized in that: The positioning detection mechanism (500) comprises a detection platform (510), a backlight source (520), a coaxial light source (540) and a detection camera (530), wherein the detection camera (530) is arranged above the detection platform (510), the coaxial light source (540) is arranged between the detection camera (530) and the detection platform (510), the backlight source (520) is arranged within the detection platform (510), and a glass plate (511) is embedded on the surface of the detection platform (510) for allowing backlight emitted by the backlight source (520) to pass through.

4. The terminal crimping device according to claim 1, wherein: The loading platform (200) comprises a carrying platform (210), a platform longitudinal movement driving mechanism (220) and a pressing mechanism (230); a receiving groove (211) matching the shape of the product of the terminal to be crimped is provided on the table surface of the carrying platform (210); a plurality of adsorption holes are provided in the receiving groove (211); a cavity connected to the adsorption holes is provided in the carrying platform (210); the cavity is connected to a vacuum source; the carrying platform (210) is provided on the platform longitudinal movement driving mechanism (220); the platform longitudinal movement driving mechanism (220) The device is used to drive the carrying platform (210) to reciprocate horizontally in a direction perpendicular to the feeding direction of the terminal. A lower pressing plate (212) is provided at one end of the carrying platform (210) facing the terminal crimping mechanism (100). The pressing mechanism (230) is provided at a position where the movement stroke of the carrying platform (210) is close to the end of the terminal crimping mechanism (100). When the carrying platform (210) is located at a position where the movement stroke of the carrying platform (210) is close to the end of the terminal crimping mechanism (100), the pressing mechanism (230) can be pressed down onto the lower pressing plate (212).

5. The terminal crimping device according to claim 1, wherein: The terminal feeding mechanism (400) comprises a discharge shaft (410), a release paper recovery shaft (420) and a terminal guide groove (430), wherein the discharge shaft (410) is rotatably arranged on a frame, the discharge shaft (410) is used to place terminal coils, the release paper recovery shaft (420) is rotatably arranged on one side of the discharge shaft (410), the release paper recovery shaft (420) can be rotated under the drive of a recovery drive motor (421), and the terminal guide groove (430) is fixedly arranged on one side of the discharge shaft (410), and the terminal guide groove (430) is used to guide the terminals discharged from the terminal coils to the terminal feeding mechanism (140).

6. The terminal crimping device according to claim 1, wherein: The crimping stroke adjustment mechanism (150) includes an adjustment slider (151), a locking mechanism (155), an adjustment eccentric shaft (153), an adjustment mounting plate (152) and an adjustment handle (154), wherein the adjustment slider (151) is slidably arranged in the lower die slider (121), an adjustment slot is arranged on the adjustment slider (151), the adjustment eccentric shaft (153) passes through the adjustment slot, and the eccentric portion of the adjustment eccentric shaft (153) is located in the adjustment slot, the adjustment mounting plate (152) is connected to the lower die slider (121), and both ends of the adjustment eccentric shaft (153) are respectively connected to the lower die slider (121). The terminal block (121) and the adjusting mounting plate (152) are rotatably connected, the adjusting handle (154) is arranged at one end of the adjusting eccentric shaft (153), the adjusting handle (154) is arranged on the outside of the adjusting mounting plate (152), the locking mechanism (155) is arranged on the adjusting mounting plate (152), and the locking mechanism (155) is used to lock the position of the adjusting handle (154), the cutting inner knife (123) is connected to the adjusting slider (151), and the cutting elastic member (124) is arranged between the terminal limit block (122) and the adjusting slider (151).

7. The terminal crimping device according to claim 2, characterized in that: An auxiliary bracket (1211) is provided on the upper end surface of the lower mold slider (121), and a support groove having a width matching the width of the terminal is provided at the upper end of the auxiliary bracket (1211). The auxiliary bracket (1211) is used to support the connecting portion of the terminal.

8. The terminal crimping device according to claim 7, characterized in that: The upper die mechanism (110) comprises an upper die mounting block (111), a forming knife (112) and a forming auxiliary head (113); the forming knife (112) is arranged at one end of the upper die mounting block (111) facing the lower die mechanism (120); the forming knife (112) is provided with a forming groove for crimping and forming the piercing portion of the terminal at one end facing the lower die mechanism (120); the forming auxiliary head (113) is slidably arranged in the upper die mounting block (111); the shape of the forming auxiliary head (113) matches the shape of the auxiliary bracket (1211); an auxiliary head driving device (114) is provided in the upper die mounting block (111); the auxiliary head driving device (114) is used to drive the forming auxiliary head (113) to press on the lower die mechanism (120); and a guide baffle (1121) is provided on the side of the forming knife (112) facing away from the forming auxiliary head (113).

9. The terminal crimping device according to claim 1, wherein: A positioning pin (1221) is slidably provided in the terminal positioning block, the shape of the positioning pin (1221) matches the positioning hole on the terminal frame, and a positioning elastic member (1222) is provided between the lower end of the positioning pin (1221) and the crimping stroke adjustment mechanism (150).

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