Terminal crimping equipment

Abstract

The invention relates to the technical field of flexible circuit board production, and discloses terminal crimping equipment which comprises a terminal crimping mechanism, a feeding platform, a crimping moving platform, a terminal feeding mechanism and a positioning detection mechanism. Wherein 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 a product of a terminal to be crimped and feeding a terminal crimping part of the product 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 terminals into the terminal conveying mechanism. And the positioning detection mechanism is used for photographing the to-be-crimped product on the feeding platform and the crimped product. The terminal crimping equipment can adapt to piercing terminals with different crimping heights, and the crimping quality of the terminals can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of flexible circuit board production, and in particular to a terminal crimping device. Background Art

[0002] In the production process of flexible circuit boards in the automotive industry, in order to improve production efficiency, piercing terminals, also known as paint-free connectors or piercing terminal blocks, are used to achieve one-time crimping and connection between the terminal and the flexible circuit board circuit. Existing terminal crimping equipment is mostly used for terminal crimping of wires, and is not suitable for terminal crimping of flexible circuit boards with high crimping accuracy requirements, and is unable to detect the shape of the terminal after crimping. In addition, the existing terminal crimping mechanism only supports one crimping height, and the length of the piercing portion of the terminal used in different products is different, resulting in different crimping strokes, which requires the preparation of multiple crimping mechanisms with different crimping heights to complete the production of different models of products, increasing the cost of production equipment. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a terminal crimping device that can achieve high-precision terminal crimping of a flexible circuit board and has good adaptability to piercing terminals with different crimping strokes.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is as follows: a terminal crimping device, comprising: a terminal crimping mechanism, including an upper mold mechanism, a lower mold mechanism, a crimping drive mechanism, a terminal feeding mechanism and a crimping stroke adjustment mechanism, the terminal feeding mechanism is arranged on one side of the upper mold mechanism and the lower mold mechanism, and is used to transport the terminal to between the upper mold mechanism and the lower mold mechanism, the lower mold mechanism is connected to the crimping drive mechanism, the crimping drive mechanism is used to drive the lower mold mechanism to approach the upper mold mechanism to crimp the terminal on the product, and the crimping stroke adjustment mechanism is used to adjust the crimping stroke of the lower mold mechanism; a feeding platform, A device is arranged on one side of the terminal crimping mechanism, and is used to place products with terminals to be crimped, and to feed the terminal crimping part of the products between the upper mold mechanism and the lower mold mechanism; a crimping moving platform is connected to the terminal crimping mechanism, and is used to drive the terminal crimping mechanism to move in a horizontal plane relative to the loading platform; a terminal loading mechanism is arranged on one side of the terminal crimping mechanism, and is used to transport the terminals to the terminal feeding mechanism; a positioning detection mechanism is connected to the terminal crimping mechanism, and is used to take pictures of the products to be crimped and the products after crimping on the loading platform, so as to position the products with terminals to be crimped and detect the crimping quality of the terminals.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: before crimping, the flexible circuit board on the feeding platform can be photographed by the positioning detection mechanism, the position of the flexible circuit board can be located, and the position accuracy of the terminal crimping can be improved. After crimping, the positioning detection mechanism can detect the shape of the terminal after crimping and detect the crimping quality of the terminal. The crimping stroke adjustment mechanism can adjust the crimping stroke of the lower mold mechanism, so that the equipment can crimp pierced terminals with a variety of different crimping strokes, improve the adaptability of the equipment, reduce the number of equipment types required, and reduce production costs.

[0006] In the above-mentioned terminal crimping equipment, the crimping moving platform includes 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 above-mentioned terminal crimping equipment, the positioning detection mechanism includes 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 is embedded on the surface of the detection platform for the backlight emitted by the backlight source to pass through.

[0008] The above-mentioned terminal crimping equipment, the loading platform includes a carrying platform, a platform longitudinal movement driving mechanism and a pressing mechanism, the table top of the carrying platform is provided with a receiving groove matching the product shape of the terminal to be crimped, a plurality of adsorption holes are provided in the receiving groove, a cavity connected with the adsorption holes is provided in the carrying platform, the cavity is connected with a vacuum source, the carrying platform is arranged on the platform longitudinal movement driving mechanism, the platform longitudinal movement driving mechanism is used to drive the carrying platform to reciprocate horizontally in a direction perpendicular to the feeding direction of the terminal, a lower pressing plate is provided at one end of the carrying platform facing the terminal crimping mechanism, the pressing mechanism is arranged at the end of the movement stroke of the carrying platform close to the terminal crimping mechanism, when the carrying platform is located at the end of its movement stroke close to the terminal crimping mechanism, the pressing mechanism can be pressed down onto the lower pressing plate.

[0009] The above-mentioned terminal crimping equipment, the terminal feeding mechanism includes a feed discharge shaft, a release paper recovery shaft and a terminal guide groove, the feed discharge shaft is rotatably arranged on the frame, the feed discharge shaft is used to place the terminal coil, the release paper recovery shaft is rotatably arranged on one side of the feed discharge shaft, the release paper recovery shaft can be rotated under the drive of the recovery drive motor, the terminal guide groove is fixedly arranged on one side of the feed discharge shaft, and the terminal guide groove is used to guide the terminals discharged from the terminal coil to the terminal feeding mechanism.

[0010] The above-mentioned terminal crimping equipment, the crimping drive mechanism includes a crimping drive device and a sliding frame, the lower mold mechanism is slidably arranged in the sliding frame, the lower mold 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 knife, the cutting outer knife is provided with a frame flow channel for the frame of the terminal to pass through, the lower mold mechanism includes a lower mold slide block, a terminal limit block and a cutting inner knife, the terminal limit block is slidably connected to the lower mold slide block, the upper end of the terminal limit block is provided with a slideway whose width matches the width of the terminal, the crimping stroke adjustment mechanism is arranged on the sliding frame, the upper end of the cutting inner knife is slidably arranged in the slideway, the cutting inner knife is connected to the lower mold slide through the crimping stroke adjustment mechanism, a cutting elastic member is provided between the terminal limit block and the crimping stroke adjustment mechanism, and when the lower mold mechanism approaches the upper mold mechanism, the cutting inner knife cooperates with the cutting outer knife to separate the terminal from the frame of the terminal.

[0011] The above-mentioned terminal crimping equipment, the crimping stroke adjustment mechanism includes an adjusting slider, a locking mechanism, an adjusting eccentric shaft, an adjusting mounting plate and an adjusting handle, the adjusting slider is slidably arranged in the lower mold slider, the adjusting slider is provided with an adjusting slot, the adjusting eccentric shaft passes through the adjusting slot, the eccentric portion of the adjusting eccentric shaft is located in the adjusting slot, the adjusting mounting plate is connected to the lower mold slider, the two ends of the adjusting eccentric shaft are respectively rotatably connected to the lower mold slider and the adjusting mounting plate, the adjusting handle is arranged at one end of the adjusting eccentric shaft, the adjusting handle is arranged on the outside of the adjusting mounting plate, the locking mechanism is arranged on the adjusting mounting plate, the locking mechanism is used to lock the position of the adjusting handle, the cutting inner knife is connected to the adjusting slider, and the cutting elastic member is arranged between the terminal limit block and the adjusting slider.

[0012] In the above-mentioned terminal crimping equipment, an auxiliary bracket is arranged on the upper end surface of the lower mold slider, and a supporting groove with a width matching the width of the terminal is arranged on the upper end of the auxiliary bracket, and the auxiliary bracket is used to support the connecting part of the terminal.

[0013] The above-mentioned terminal crimping equipment, the upper mold mechanism includes an upper mold mounting block, a forming knife and a forming auxiliary head, the forming knife is arranged at one end of the upper mold mounting block facing the lower mold mechanism, the end of the forming knife facing the lower mold mechanism is provided with a forming groove for crimping the piercing part of the terminal, the forming auxiliary head is slidably arranged in the upper mold mounting block, the shape of the forming auxiliary head matches the shape of the auxiliary bracket, the upper mold mounting block is provided with an auxiliary head driving device, the auxiliary head driving device is used to drive the forming auxiliary head to press on the lower mold mechanism, and the side of the forming knife facing away from the forming auxiliary head is provided with a guide baffle.

[0014] In the above-mentioned terminal crimping device, a positioning pin is slidably arranged 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 arranged between the lower end of the positioning pin and the crimping stroke adjustment mechanism.

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

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

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

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

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

[0020] Figure 5 It is a three-dimensional structural schematic diagram of a terminal feeding mechanism according to an embodiment of the present invention;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of a terminal crimping mechanism according to an embodiment of the present invention;

[0022] Figure 7 It is a 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] Fig. 9 is a cross-sectional view of a crimping drive mechanism according to an embodiment of the present invention;

[0025] Fig.10 A rear view of a lower die slide block according to an embodiment of the present invention;

[0026] Fig.11 A rear view of the lower mold mechanism of an embodiment of the present invention;

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

[0028] Fig.13 It is a three-dimensional structural schematic diagram of an upper mold mechanism according to an embodiment of the present invention;

[0029] Fig.14 A schematic diagram of the internal structure of an upper mold mechanism according to an embodiment of the present invention;

[0030] Fig.15 It is a partial enlarged schematic diagram of a forming knife according to an embodiment of the present invention;

[0031] Fig.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 driving 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 driving 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 recycling box, 161 waste door, 162 waste driving mechanism, 200 loading platform, 210 bearing platform, 211 receiving groove, 212 lower pressing plate, 220 platform longitudinal movement driving mechanism, 230 pressing mechanism, 231 lower pressing beam, 232 upper pressing plate, 23 3 pressing drive mechanism, 300 crimping moving platform, 310X-axis drive mechanism, 320Y-axis drive mechanism, 400 terminal feeding 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 1, an embodiment of the present invention provides a terminal crimping device, including 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 includes 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, and 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 of 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 a 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 detect the crimping quality of the crimped terminal.

[0035] When the terminal crimping device is working, the flexible circuit board to be crimped is manually placed on the loading platform 200, and the circuit part of the flexible circuit board that needs to be crimped with the terminal, that is, the terminal crimping part, is made to protrude from the loading platform 200, so that the terminal crimping part can be inserted into the positioning detection mechanism 500 and the terminal crimping mechanism 100. The crimping mobile platform 300 drives the terminal crimping mechanism 100, firstly making the terminal crimping part on the loading platform 200 extend into the positioning detection mechanism 500, so that the positioning detection mechanism 500 takes a photo and positions the flexible circuit board on the loading platform 200. Then, the crimping mobile platform 300 drives the terminal crimping mechanism 100 to move, so that the terminal crimping part of the flexible circuit board extends between the upper mold mechanism 110 and the lower mold mechanism 120, so that the lower mold mechanism 120 cooperates with the upper mold mechanism 110 to crimp the terminal on the terminal crimping part 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 inserted into the positioning detection mechanism 500 again, and the crimped terminal is photographed to detect the crimping quality of the crimped terminal. The terminal crimping equipment 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 equipment 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, improve the adaptability of the terminal crimping equipment to terminals of different models, thereby reducing the number of types of terminal crimping equipment required and reducing production costs.

[0036] Reference Figure 2 In this embodiment, the crimping mobile platform 300 includes an X-axis driving mechanism 310 and a Y-axis driving mechanism 320, the terminal crimping mechanism 100 and the positioning detection mechanism 500 are arranged on the Y-axis driving mechanism 320, and the Y-axis driving mechanism 320 is arranged on the X-axis driving 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 driving mechanism 310 and the Y-axis driving 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 detection 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 table 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 terminals, thereby improving the detection accuracy of the crimping quality of the terminals. 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 the present embodiment, the coaxial light source 540 is arranged on the supporting 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 to perform telescopic movement 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 certain 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 table surface of the carrying platform 210, and 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, and 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, and 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 arranged at the end of the movement stroke of the carrying platform 210 close to the terminal crimping mechanism 100. When the carrying platform 210 is located at the end of its movement stroke close to the terminal crimping mechanism 100, the pressing mechanism 230 can be pressed down onto the lower pressing plate 212. When loading, the platform longitudinal movement driving mechanism 220 drives the carrying platform 210 to move to the outside, and the operator places the flexible circuit board into the receiving groove 211, so that the terminal crimping part of the flexible circuit board extends out of the rear end of the lower pressing plate 212, and then activates the adsorption function of the carrying platform 210 to adsorb the flexible circuit board into the receiving groove 211. Then, the platform longitudinal movement mechanism drives the carrying platform 210 to move toward the terminal crimping mechanism 100, so that the lower pressing plate 212 comes to the bottom of the pressing mechanism 230, and the pressing mechanism 230 is pressed down onto the lower pressing plate 212. After the terminals are crimped and tested, the pressing mechanism 230 and the platform longitudinal driving mechanism 220 are reset successively, and the support platform 210 turns off the adsorption function, so that the operator can take away the flexible circuit board after the terminals are crimped.

[0039] Reference Figure 4 In this embodiment, the pressing mechanism 230 includes a pressing beam 231 and a pressing drive mechanism 233. The pressing beam 231 is movably arranged on the support structure of the platform longitudinal movement drive mechanism 220 through the pressing drive mechanism 233. The rear end of the pressing beam 231 is provided with an upper pressing plate 232 whose shape matches the lower pressing plate 212. The pressing drive mechanism 233 is used to drive the pressing beam 231 to move up and down in the vertical direction. When the carrying platform 210 moves to the bottom of the pressing mechanism 230, the pressing drive mechanism 233 can drive the upper pressing plate 232 to press on the lower pressing plate 212 to fix the root of the terminal crimping part of the flexible circuit board to avoid deformation of the terminal crimping part during the crimping process and ensure the crimping quality of the terminal.

[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 arranged on the frame, and is used to place the terminal coil. 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 driven by the recovery drive motor 421 to rotate, so as to recover the release paper in the terminal coil into a roll. The terminal guide groove 430 is fixedly arranged on one side of the discharge shaft 410, and is used to guide the terminal discharged from the terminal coil to the input end of the terminal feeding mechanism 140. In this embodiment, two side baffles are arranged on the discharge shaft 410 and the release paper recovery shaft 420, and the terminal coil or the recovered release paper coil is arranged between the two side baffles to prevent the coil from spreading during the discharge or rewinding process. The terminal guide groove 430 is an arc-shaped guide groove. The coiled material discharged from the discharge shaft 410 enters from the lower end of the terminal guide groove 430, flows out from the outlet at the upper end along 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. In order to further improve the stability of the discharge of the terminal coiled material, the discharge shaft 410 is provided with damping, and a damping mechanism 411 is provided at the rotation 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 with the adjustment block, a friction rubber block is provided on the abutment block, the friction rubber block abuts against the circumference of the discharge shaft 410, and a spring is provided between the abutment block and the adjustment block. The elastic force of the spring can be adjusted by adjusting the relative position between the abutment block and the adjustment block, and the pressure between the friction rubber block and the discharge shaft 410 is adjusted, 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 disposed 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. An outer cutting knife 1311 is disposed at the upper end of the sliding frame 131. The outer cutting knife 1311 is provided with a frame flow channel for the frame of the terminal to pass through. The lower mold mechanism 120 includes a lower mold slider 121, a terminal limit block 122 and an inner cutting 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 arranged in the terminal limit block 122, the blade part of the upper end of the cutting inner knife 123 is slidably arranged in the slideway, 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, and 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 continue to press the cut terminal to the upper mold mechanism 110, so that the piercing part of the terminal pierces the product passing between the upper mold mechanism 110 and the lower mold mechanism 120, and folds 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 cutting inner knife 123 and 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 stop block 122 is triangular to avoid interference between the terminal stop block 122 and other mechanisms during movement and to reduce the contact area between the terminal stop block 122 and the product during crimping. During the crimping process, the terminal falls into the slideway of the terminal stop 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. Fig.11In this embodiment, limiting grooves are provided on both sides of the sliding groove of the terminal limiting block 122, and limiting bosses are correspondingly 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 may be a position-adjustable limit slider or limit bolt, etc. Figure 7 , Fig. 9 , Fig.11 and Fig.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 arranged in the slide groove of the lower die slider 121, and an adjustment groove is arranged on the adjustment slider 151. The adjustment eccentric shaft 153 passes through the adjustment groove, and the eccentric part of the adjustment eccentric shaft 153 is located in the adjustment groove. The adjustment mounting plate 152 is connected to the lower die slider 121, and the two ends of the adjustment eccentric shaft 153 are respectively rotatably connected to the lower die slider 121 and the adjustment mounting plate 152. The adjustment handle 154 is arranged at one end of the adjustment eccentric shaft, and the adjustment handle 154 is arranged on the outer side of the adjustment mounting plate 152. The locking mechanism 155 is arranged on the adjustment mounting plate 152, and the locking mechanism 155 is used to lock the position of the adjustment handle 154. The cutting inner knife 123 is connected to the adjustment slider 151, and the cutting elastic member 124 is arranged between the terminal limit block 122 and the adjustment slider 151. When the crimping stroke needs to be adjusted, the locking mechanism 155 is unlocked, and the adjusting handle 154 is rotated to drive the adjusting eccentric shaft 153 to rotate. The cam mechanism composed of the eccentric part and the adjusting groove drives the adjusting slider 151 to slide along the slide groove of the lower die slider 121, thereby changing the initial position of the cutting inner knife 123 connected to the adjusting slider 151 relative to the lower die slider 121, thereby adjusting the crimping stroke. After the adjustment is completed, the adjusting handle 154 is re-locked by the locking mechanism 155 to fix the adjustment result. It can be understood that the adjusting groove is a waist-shaped hole whose width matches the diameter of the eccentric part.

[0043] It is understandable that the locking mechanism 155 can lock the adjustment handle 154 and the adjustment mounting plate 152 by means of a latch or a bolt. Figure 7 , Fig. 9 , Fig.11 and Fig.12In this embodiment, the locking mechanism 155 includes a locking tooth plate 1551 and a locking pin 1553. The locking pin 1553 is rotatably arranged at one end of the adjusting handle 154 facing away from the adjusting eccentric shaft 153. The edge of one end of the locking tooth plate 1551 is arc-shaped, and the arc-shaped edge of the locking tooth plate 1551 is provided with locking teeth. The locking pin 1553 is provided with a locking boss that matches the tooth groove of the locking tooth. The locking boss is arranged on the inner surface of the locking pin 1553. A locking elastic member 1552 is arranged between the locking pin 1553 and the adjusting handle 154. The locking elastic member 1552 continuously applies a thrust to the locking pin 1553 in the direction of the locking tooth plate 1551, so that the locking boss is inserted into any tooth groove of the locking tooth. When adjustment is required, the locking pin 1553 is pulled outward to disengage the locking boss from the tooth groove of the locking tooth, so that the adjustment handle 154 can be rotated to drive the adjustment eccentric shaft 153 to rotate, thereby adjusting the crimping stroke of the lower die mechanism 120. 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, and the position of the adjustment handle 154 is locked again.

[0044] Reference Fig.11 and Fig.12 In order to facilitate the replacement of the inner cutting knife 123, the inner cutting knife 123 is connected to the adjusting slider 151 through the adapter block 1511, and the adjusting slider 151 and the adapter block 1511 are connected by an easily disassembled mortise and tenon joint. A semi-open slide groove is arranged on the outer side of the lower mold slide 121, and the adjusting slider 151, the adapter block 1511 and the terminal limit block 122 are slidably arranged in the slide groove of the lower mold slide 121. A semi-open slide groove is also arranged on the outer side of the sliding frame 131. The lower mold slide 121 is slidably arranged in the slide groove of the sliding frame 131, and a detachable outer sealing plate 1313 is arranged on the outer side of the sliding frame 131. The lower mold slide 121 and the terminal limit block 122, the adjusting slider 151 and the adapter block 1511 on the lower mold slide 121 are restricted in the slide groove of the sliding frame 131 by the outer sealing plate 1313. The lower end of the cutting inner blade 123 and the upper end of the adapter block 1511 are both provided with an insertion structure, and the cutting inner blade 123 is detachably connected to the adapter block 1511 through the insertion structure, and the inserted cutting inner blade 123 and the adapter block 1511 are inseparable in the movement direction of the lower mold mechanism 120. The cutting elastic member 124 is provided between the terminal limit block 122 and the adapter block 1511.

[0045] Reference Figure 8 , Fig. 9 and Fig.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, so as to avoid the non-puncture part of the punctured terminal from deforming 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 slidably 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 slideway of the limit terminal block to ensure the crimping accuracy.

[0046] It is understandable that the crimping drive device can be a linear drive mechanism such as a cylinder or an electric cylinder. Figure 6 , Figure 8 , Fig. 9 and Fig.10 In this embodiment, the crimping drive device drives the lower die mechanism 120 through a cam mechanism. A crimping chute is provided on the lower die slider 121, a crimping slider 133 is provided in the crimping chute, a crimping eccentric shaft 132 is rotatably provided on the slide frame 131, the output end of the crimping eccentric shaft 132 is rotatably connected to the crimping slider 133, and 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 drives the crimping eccentric shaft 132 to rotate, thereby driving the output end of the crimping eccentric shaft 132 to rotate eccentrically, and driving the lower die slider 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 side of the upper end of the sliding frame 131 facing away from the terminal feeding mechanism 140, and the product connection plate 1312 is used to support the product to be crimped with the terminal. A waste cutting knife 125 is provided on the side of the lower mold slide 121 facing away from the terminal feeding mechanism 140. When the lower mold mechanism 120 moves, the waste cutting knife 125 will follow the movement of the lower mold mechanism 120 and cooperate with the product connection plate 1312 to cut the frame waste remaining after the terminal is removed, so as to facilitate the recycling of the frame waste.

[0048] Reference Figure 7In order to further facilitate the recycling of frame waste, a waste recycling box 160 is provided on the side of the sliding frame 131 facing 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. An openable and closable waste door 161 is provided on the waste outlet, and the waste door 161 can be opened and closed under the drive of the waste driving mechanism 162. A guide wedge 126 for guiding the frame waste at the cutting end to the waste inlet is provided below the waste cutting knife 125. When the frame waste is cut by the waste cutting knife 125, the cut frame segment flows into the waste recycling box 160 along the wedge surface at the upper end of the guide wedge 126. When the waste in the waste recycling box 160 is full, the waste door 161 can be driven by the waste driving mechanism 162 to open and empty the waste in the waste recycling box 160. In this embodiment, the waste door 161 is hinged on the waste recovery box 160, and a sliding cylinder is provided on the waste recovery box 160. The slide of the sliding cylinder is connected to the waste door 161 through a connecting rod, and the two ends of the connecting rod are respectively rotatably connected to the slide of the sliding cylinder and the waste door 161.

[0049] Reference Fig.13 and Fig.14 In this embodiment, the upper mold mechanism 110 includes an upper mold mounting block 111, a molding knife 112 and a molding auxiliary head 113. The molding knife 112 is arranged at one end of the upper mold mounting block 111 facing the lower mold mechanism 120, and the end of the molding knife 112 facing the lower mold mechanism 120 is provided with a molding groove for crimping and molding the piercing part of the terminal. The molding auxiliary head 113 is slidably arranged in the upper mold mounting block 111, and the shape of one end of the molding auxiliary head 113 facing the lower mold mechanism 120 matches the shape of the auxiliary bracket 1211. An auxiliary head driving device 114 is arranged in the upper mold mounting block 111, and the auxiliary head driving device 114 drives the molding auxiliary head 113 to press on the lower mold mechanism 120. Refer to Fig.15 In this embodiment, two arc-shaped forming grooves are arranged side by side at the lower end of the forming knife 112. The two forming grooves respectively guide the inward bending and folding of the two sides of the terminal piercing part, so that the terminal is electrically connected to the circuit on the product and buckled on the product at the same time. In this embodiment, the auxiliary head driving device 114 adopts a cylinder. During crimping, the auxiliary head driving device 114 synchronously drives the forming auxiliary head 113 to extend toward the auxiliary bracket 1211, pressing the terminal onto the auxiliary bracket 1211, and 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. Figure 8 As shown in the figure, in this embodiment, a guide baffle 1121 is provided on the outer side of the forming knife 112, and the guide baffle 1121 blocks a part of the outer end of the forming groove to further prevent the terminal from moving outward longitudinally during the crimping process.

[0050] Reference Fig.14In this embodiment, a pressure sensor 115 is arranged between the upper end of the forming knife 112 and the upper mold mounting block 111 to collect the crimping pressure and better control the crimping forming effect. The forming knife 112 is arranged in the cavity in the upper mold mounting block 111. There is a small gap between the forming knife 112 and the side wall of the cavity of the upper mold mounting block 111 to facilitate the pressure sensor 115 to collect the pressure on the forming knife 112.

[0051] It is understandable that the terminal feeding mechanism 140 should include a terminal flow channel 142 for the terminal frame to flow, and a terminal driving mechanism for driving the terminal to flow along the flow channel. The terminal driving mechanism can be a conveyor belt or a conveyor wheel mechanism, etc. Fig.16 In this embodiment, the terminal drive mechanism includes a feeding gear 143 and a feeding drive motor 144. The feeding gear 143 is connected to the output shaft of the feeding drive motor 144. The spacing between the teeth on the feeding gear 143 is equal to the spacing between the positioning holes on the frame of the terminal. The lower side of the terminal flow channel 142 is provided with a plug hole for the feeding gear 143 to be inserted. The terminal flow channel 142 is provided on the clutch drive mechanism 145. The terminal flow channel 142 can be lifted and lowered in the vertical direction under the drive of the clutch drive mechanism 145, so that the feeding gear 143 extends into the terminal flow channel 142 or is separated from the terminal flow channel 142. When the feeding gear 143 extends 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 drive motor 144 can realize equidistant conveying of the terminal through the rotation of the feeding gear 143. The input end of the terminal flow channel 142 is provided with an arc-shaped terminal limit plate 141, and side baffles are provided on both sides of the terminal limit plate 141. The terminal released from the discharge shaft 410 enters the terminal flow channel 142 along the terminal limit block, and the side baffle is used to limit the swing amplitude of the terminal when the terminal crimping mechanism moves, so as to avoid the terminal swinging too much and causing a large deformation of the terminal frame, thereby affecting the terminal entering the terminal flow channel 142.

[0052] It can be understood that the X-axis drive mechanism 310, the Y-axis drive mechanism 320, the pressing drive mechanism 233, the platform longitudinal movement drive mechanism 220 and the avoidance drive mechanism 550 can be a linear drive mechanism composed of a drive device such as a motor, a cylinder or an electric cylinder and a transmission and guide device such as a slide rail, a guide rod and a screw pair. Their specific structure is common knowledge in the field and will not be elaborated here.

[0053] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the 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 orientation, be constructed or operated in a specific orientation, 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", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0055] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. 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-mentioned 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 substitutions made by technicians in this field on the basis of the present invention shall 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); 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 to 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 a 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 arranged on one side of the terminal crimping mechanism (100) and is used to place a product whose terminal is to be crimped 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 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 photos of the products to be crimped and the products after crimping on the loading platform (200) so as to locate the products with the terminals to be crimped and detect the crimping quality of the terminals.

2. The terminal crimping device according to claim 1, characterized in that: The crimping mobile platform (300) comprises an X-axis driving mechanism (310) and a Y-axis driving mechanism (320); the Y-axis driving mechanism (320) is arranged on the X-axis driving mechanism (310); and the terminal crimping mechanism (100) and the positioning detection mechanism (500) are arranged on the Y-axis driving 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); 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 inside 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, characterized in that: The loading platform (200) comprises a bearing platform (210), a platform longitudinal movement driving mechanism (220) and a material pressing mechanism (230); a receiving groove (211) matching the shape of a product of a terminal to be crimped is arranged on the table surface of the bearing platform (210); a plurality of adsorption holes are arranged in the receiving groove (211); a cavity connected to the adsorption holes is arranged in the bearing platform (210); the cavity is connected to a vacuum source; the bearing platform (210) is arranged on the platform longitudinal movement driving mechanism (220); and the platform longitudinal movement driving mechanism (220) Used to drive the bearing 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 bearing platform (210) facing the terminal crimping mechanism (100), and the pressing mechanism (230) is provided at a position where the movement stroke of the bearing platform (210) is close to the end of the terminal crimping mechanism (100). When the bearing platform (210) is located at a position where the movement stroke of the bearing 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, characterized in that: The terminal feeding mechanism (400) comprises a feeding shaft (410), a release paper recovery shaft (420) and a terminal guide groove (430); the feeding shaft (410) is rotatably arranged on a frame; the feeding shaft (410) is used to place terminal coils; the release paper recovery shaft (420) is rotatably arranged on one side of the feeding shaft (410); the release paper recovery shaft (420) can be rotated under the drive of a recovery drive motor (421); the terminal guide groove (430) is fixedly arranged on one side of the feeding shaft (410); 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, characterized in that: The crimping drive mechanism (130) comprises a crimping drive device and a sliding frame (131); the lower die mechanism (120) is slidably arranged in the sliding frame (131); the lower die mechanism (120) can slide along the sliding frame (131) under the drive of the crimping drive device; an outer cutting knife (1311) is arranged at the upper end of the sliding frame (131); a frame flow channel for a terminal frame to pass through is arranged on the outer cutting knife (1311); the lower die mechanism (120) comprises a lower die slider (121), a terminal limit block (122) and an inner cutting knife (123); the terminal limit block (122) is slidably connected to the lower die slider (121); the terminal The upper end of the 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 upper end of the cutting inner knife (123) is slidably arranged in the slideway; the cutting inner knife (123) is connected to the lower mold slide block (121) through the crimping stroke adjustment mechanism (150); 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 frame of the terminal.

7. The terminal crimping device according to claim 6, characterized in that: The crimping stroke adjustment mechanism (150) comprises 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 arranged in the lower die slider (121); an adjustment groove is arranged on the adjustment slider (151); the adjustment eccentric shaft (153) passes through the adjustment groove; the eccentric part of the adjustment eccentric shaft (153) is located in the adjustment groove; the adjustment mounting plate (152) is connected to the lower die slider (121); both ends of the adjustment eccentric shaft (153) are respectively connected to the lower die slider (121); The block (121) is rotatably connected to the adjusting mounting plate (152), the adjusting handle (154) is arranged at one end of the adjusting eccentric shaft (153), the adjusting handle (154) is arranged on the outer side of the adjusting mounting plate (152), the locking mechanism (155) is arranged on the adjusting mounting plate (152), 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 limiting block (122) and the adjusting slider (151).

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

9. The terminal crimping device according to claim 8, 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 end of the forming knife (112) facing the lower die mechanism (120) is provided with a forming groove for crimping and forming the piercing portion of the terminal; 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 arranged 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 arranged on the side of the forming knife (112) facing away from the forming auxiliary head (113).

10. The terminal crimping device according to claim 6, characterized in that: A positioning pin (1221) is slidably arranged 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 arranged between the lower end of the positioning pin (1221) and the crimping stroke adjustment mechanism (150).

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