Terminal crimping mechanism

Abstract

The utility model relates to the technical field of flexible circuit board production, and discloses a terminal crimping mechanism, which comprises 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 used for conveying terminals to the position between the upper die mechanism and the lower die mechanism. And the lower die mechanism is connected with the crimping driving mechanism, and the crimping driving mechanism is used for driving the lower die mechanism to approach the upper die mechanism so as to crimp the terminal on the product. The crimping stroke adjusting mechanism is used for adjusting the crimping stroke of the lower die mechanism. According to the terminal crimping mechanism, the crimping stroke of the lower die mechanism can be adjusted through the crimping stroke adjusting mechanism so as to adapt to crimping of piercing terminals with different crimping heights, the applicability of the terminal crimping mechanism is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board manufacturing technology, specifically to a terminal crimping mechanism. Background Technology

[0002] In the production of flexible circuit boards (PCBs) for the automotive industry, piercing terminals, also known as non-stripping connectors or piercing-type terminals, are used to improve production efficiency and achieve one-time crimping and connection between the terminals and the PCB circuitry. Existing terminal crimping mechanisms only support one crimping height. However, different products use terminals with varying piercing lengths, resulting in different crimping strokes. This necessitates the use of multiple crimping mechanisms with different heights to produce different product models, increasing production equipment costs. Therefore, a new terminal crimping mechanism capable of adapting to various crimping strokes is needed. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a terminal crimping mechanism that can adjust the crimping stroke to adapt to terminals with different crimping strokes, thereby improving the applicability of the terminal crimping mechanism and reducing production costs.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A terminal crimping mechanism includes 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 disposed on one side of the upper mold mechanism and the lower mold mechanism and is used to transport the terminal 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 onto the product. The crimping stroke adjustment mechanism is used to adjust the crimping stroke of the lower mold mechanism.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows: the lower die mechanism is provided with a crimping stroke adjustment mechanism, which can adjust the crimping stroke of the lower die mechanism so that a single terminal crimping mechanism can adapt to piercing terminals with various different crimping strokes, reducing the types of terminal crimping mechanisms required, thereby reducing production costs.

[0006] The aforementioned terminal crimping mechanism includes a crimping drive mechanism comprising a crimping drive device and a sliding frame. The lower die mechanism is slidably disposed within the sliding frame and can slide along the sliding frame under the drive of the crimping drive device. An outer cutting blade is disposed at the upper end of the sliding frame, and a frame flow channel is provided on the outer cutting blade for the terminal frame to pass through. The lower die mechanism includes a lower die slider, a terminal limiting block, and an inner cutting blade. The terminal limiting block is slidably connected to the lower die slider, and a slide rail with a width matching the width of the terminal is disposed at the upper end of the terminal limiting block. A crimping stroke adjustment mechanism is disposed on the sliding frame, and the upper end of the inner cutting blade is slidably disposed within the slide rail. The inner cutting blade is connected to the lower die slider via the crimping stroke adjustment mechanism. A cutting elastic element is disposed between the terminal limiting block and the crimping stroke adjustment mechanism. When the lower die mechanism approaches the upper die mechanism, the inner cutting blade and the outer cutting blade cooperate to separate the terminal from the terminal frame.

[0007] The aforementioned terminal crimping mechanism includes a crimping stroke adjustment mechanism comprising an adjusting slider, a locking mechanism, an adjusting eccentric shaft, an adjusting mounting plate, and an adjusting handle. The adjusting slider is slidably disposed within the lower die slider, and an adjusting groove is provided on the adjusting slider. The adjusting eccentric shaft passes through the adjusting groove, with its eccentric portion located within the adjusting groove. The adjusting mounting plate is connected to the lower die slider, and both ends of the adjusting eccentric shaft are rotatably connected to the lower die slider and the adjusting mounting plate, respectively. The adjusting handle is disposed at one end of the adjusting eccentric shaft and is located on the outside of the adjusting mounting plate. The locking mechanism is disposed on the adjusting mounting plate and is used to lock the position of the adjusting handle. The inner cutting blade is connected to the adjusting slider, and the cutting elastic element is disposed between the terminal limiting block and the adjusting slider.

[0008] The terminal crimping mechanism described above includes a locking mechanism comprising a locking tooth plate and a locking pin. The locking pin is rotatably disposed at the end of the adjusting handle facing away from the adjusting eccentric shaft. The edge of the locking tooth plate facing away from the terminal limiting block is arc-shaped, and the arc-shaped edge of the locking tooth plate is provided with locking teeth. The locking pin is provided with a locking boss that matches the tooth groove of the locking teeth. A locking elastic element is provided between the locking pin and the adjusting handle. The locking elastic element continuously applies a pushing force to the locking pin in the direction of the locking tooth plate, causing the locking boss to insert into any tooth groove of the locking teeth.

[0009] In the aforementioned terminal crimping mechanism, an auxiliary bracket is provided on the upper surface of the lower die slider, and a support groove with a width matching the width of the terminal is provided on the upper end of the auxiliary bracket. The auxiliary bracket is used to support the connection part of the terminal.

[0010] The aforementioned terminal crimping mechanism includes an upper mold mechanism comprising an upper mold mounting block, a forming blade, and a forming auxiliary head. The forming blade is disposed at one end of the upper mold mounting block facing the lower mold mechanism, and the end of the forming blade facing the lower mold mechanism is provided with a forming groove for crimping the piercing portion of the terminal. The forming auxiliary head is slidably disposed within the upper mold mounting block, and the shape of the forming auxiliary head matches the shape of the auxiliary support. An auxiliary head driving device is disposed within the upper mold mounting block, and the auxiliary head driving device is used to drive the forming auxiliary head to press against the lower mold mechanism.

[0011] In the aforementioned terminal crimping mechanism, a guide baffle is provided on the side of the forming blade facing the forming auxiliary head.

[0012] In the aforementioned terminal crimping mechanism, a waste cutting blade is provided on the side of the lower die mechanism facing away from the terminal feeding mechanism, and a product connecting plate is provided on the side of the lower die mechanism facing away from the terminal feeding mechanism. When the lower die mechanism is activated, the waste cutting blade cooperates with the product connecting plate to cut off the remaining frame after the terminal is cut off.

[0013] In the aforementioned terminal crimping mechanism, a waste recycling bin is provided on the side of the lower die mechanism facing away from the terminal feeding mechanism. A waste inlet is provided at the upper end of the waste recycling bin, and a waste outlet is provided at the lower end of the waste recycling bin. An openable and closable waste door is provided on the waste outlet, which can be opened and closed under the drive of a waste driving mechanism. A guide wedge is provided below the waste cutting blade to guide the cut frame waste to the waste inlet.

[0014] In the aforementioned terminal crimping mechanism, a positioning pin is slidably disposed within the terminal positioning block. The shape of the positioning pin matches the positioning hole on the terminal frame. A positioning elastic element is disposed between the lower end of the positioning pin and the crimping stroke adjustment mechanism.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the terminal crimping mechanism according to an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the lower mold portion according to an embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the lower mold portion from another perspective of an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the crimping drive mechanism according to an embodiment of the present utility model;

[0020] Figure 5 This is a rear view of the lower mold slider according to an embodiment of the present utility model;

[0021] Figure 6 This is a rear view of the lower mold mechanism according to an embodiment of the present utility model;

[0022] Figure 7 This is a cross-sectional view of the crimping stroke adjustment mechanism according to an embodiment of the present utility model;

[0023] Figure 8 This is a three-dimensional structural diagram of the upper mold mechanism according to an embodiment of the present utility model;

[0024] Figure 9 This is a schematic diagram of the internal structure of the upper mold mechanism in an embodiment of the present utility model;

[0025] Figure 10 This is a partially enlarged schematic diagram of the forming blade according to an embodiment of the present utility model.

[0026] Explanation of icon numbers:

[0027] 100 Upper mold mechanism, 110 Upper mold mounting block, 120 Forming blade, 121 Guide baffle, 130 Forming auxiliary head, 140 Auxiliary head drive device, 150 Pressure sensor, 200 Lower mold mechanism, 210 Lower mold slider, 211 Auxiliary bracket, 220 Terminal limit block, 221 Positioning pin, 222 Positioning elastic element, 230 Cutting inner blade, 240 Cutting elastic element, 250 Scrap cutting blade, 260 Guide wedge, 300 Pressing drive mechanism, 310 Sliding frame. 311 Cutting outer blade, 312 Product connecting plate, 313 Outer sealing plate, 320 Crimping eccentric shaft, 330 Crimping slider, 400 Terminal feeding mechanism, 500 Crimping stroke adjustment mechanism, 510 Adjusting slider, 511 Adapter block, 520 Adjusting mounting plate, 530 Adjusting eccentric shaft, 540 Adjusting handle, 550 Locking mechanism, 551 Locking toothed plate, 552 Locking elastic element, 553 Locking pin, 600 Scrap recycling bin, 610 Scrap door, 620 Scrap drive mechanism. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below, with reference to Figure 1This utility model provides a terminal crimping mechanism, including an upper die mechanism 100, a lower die mechanism 200, a crimping drive mechanism 300, a terminal feeding mechanism 400, and a crimping stroke adjustment mechanism 500. The terminal feeding mechanism 400 is disposed on one side of the upper die mechanism 100 and the lower die mechanism 200, and is used to transport the pierced terminal between the upper die mechanism 100 and the lower die mechanism 200. The lower die mechanism 200 is connected to the crimping drive mechanism 300 and can approach the upper die mechanism 100 under the drive of the crimping drive mechanism 300 to crimp the terminal onto the product. The crimping stroke adjustment mechanism 500 is used to adjust the crimping stroke of the lower die mechanism 200. This terminal crimping mechanism allows for the adjustment of the crimping stroke of the lower die mechanism 200 through the crimping stroke adjustment mechanism 500, enabling the crimping mechanism to pierce terminals with various crimping heights, reducing the number of types of terminal crimping mechanisms, and thus reducing equipment costs in the workshop.

[0029] Reference Figures 2 to 7In this embodiment, the crimping drive mechanism 300 includes a crimping drive device and a sliding frame 310. The lower die mechanism 200 is slidably disposed within the sliding frame 310 and can slide along the sliding frame 310 under the drive of the crimping drive device. An outer cutting blade 311 is provided at the upper end of the sliding frame 310, and a frame flow channel is provided on the outer cutting blade 311 for the terminal frame to pass through. The lower die mechanism 200 includes a lower die slider 210, a terminal limiting block 220, and an inner cutting blade 230. The terminal limiting block 220 is slidably connected to the lower die slider 210, and a slide rail with a width matching the width of the terminal is provided at the upper end of the terminal limiting block 220. The crimping stroke adjustment mechanism 500 is mounted on the sliding frame 310. The inner cutting blade 230 is slidably mounted in the terminal limiting block 220. The blade part at the upper end of the inner cutting blade 230 is slidably mounted in the slide rail. The inner cutting blade 230 is connected to the terminal limiting block 220 of the lower mold slider 210 through the crimping stroke adjustment mechanism 500. A cutting elastic element 240 is provided between the terminal limiting block 220 and the crimping stroke adjustment mechanism 500. When the lower mold mechanism 200 approaches the upper mold mechanism 100 under the drive of the pressing drive device, the terminal limiting block 220 and the inner cutting blade 230 move toward the upper mold mechanism 100, causing the terminal to fall into the terminal limiting block 220. After the terminal limiting block 220 contacts the upper mold mechanism 100, the terminal limiting block 220 stops moving, and the inner cutting blade 230 then rises and contacts the terminal in the slide. It cooperates with the outer cutting blade 311 to cut the terminal off its frame, and then presses the cut terminal back onto the upper mold mechanism 100, so that the piercing part of the terminal pierces the product passing between the upper mold mechanism 100 and the lower mold mechanism 200, and folds inward under the pressure between the upper mold mechanism 100 and the lower mold mechanism 200. The crimping stroke adjustment mechanism 500 can adjust the maximum stroke of the terminal limit block 220 and the cutting inner blade 230 by adjusting the hard limit positions of the inner cutting blade 230 and the terminal limit block 220, thereby adjusting the crimping stroke. (Refer to...) Figure 6 In this embodiment, the upper longitudinal section of the terminal limiting block 220 is triangular to avoid interference between the terminal limiting block 220 and other mechanisms during movement, and to reduce the contact area between the terminal limiting block 220 and the product during crimping. During crimping, the terminal falls into the slide of the terminal limiting block 220, ensuring that the piercing portion of the terminal, with the cooperation of the inner cutting blade 230 and the upper die mechanism 100, can only be folded inwards and engaged with the product's wiring, thus guaranteeing crimping quality. (Refer to...) Figure 6In this embodiment, the sliding groove of the terminal limiting block 220 is provided with limiting grooves on both sides, and the cutting inner blade 230 is provided with limiting bosses on both sides. The limiting bosses can move in the limiting grooves on the corresponding sides as the cutting inner blade 230 moves. The limiting grooves and limiting bosses cooperate to limit the maximum stroke of the cutting inner blade 230 relative to the terminal limiting groove, preventing the cutting edge of the upper end of the cutting inner blade 230 from extending out of the terminal limiting groove, which would cause the cutting edge of the cutting inner blade 230 to be damaged.

[0030] It is understandable that the crimping stroke adjustment mechanism 500 can be a position-adjustable limit slider or limit bolt, etc. (Refer to...) Figure 2 , Figure 4 , Figure 6 and Figure 7 In this embodiment, the crimping stroke adjustment mechanism 500 includes an adjusting slider 510, a locking mechanism 550, an adjusting eccentric shaft 530, an adjusting mounting plate 520, and an adjusting handle 540. The adjusting slider 510 is slidably disposed within the groove of the lower die slider 210. An adjusting groove is provided on the adjusting slider 510, and the adjusting eccentric shaft 530 passes through the adjusting groove, with its eccentric portion located within the groove. The adjusting mounting plate 520 is connected to the lower die slider 210. Both ends of the adjusting eccentric shaft 530 are rotatably connected to the lower die slider 210 and the adjusting mounting plate 520, respectively. The adjusting handle 540 is disposed at one end of the adjusting eccentric shaft and is located on the outside of the adjusting mounting plate 520. The locking mechanism 550 is disposed on the adjusting mounting plate 520 and is used to lock the position of the adjusting handle 540. The inner cutting blade 230 is connected to the adjusting slider 510, and the cutting elastic element 240 is disposed between the terminal limiting block 220 and the adjusting slider 510. When the crimping stroke needs adjustment, unlock the locking mechanism 550 and rotate the adjusting handle 540, causing the adjusting eccentric shaft 530 to rotate. The cam mechanism formed by the eccentric part and the adjusting groove drives the adjusting slider 510 to slide along the groove of the lower die slider 210, thereby changing the initial position of the cutting inner blade 230 connected to the adjusting slider 510 relative to the lower die slider 210, thus achieving adjustment of the crimping stroke. After adjustment, relock the adjusting handle 540 using the locking mechanism 550 to fix the adjustment result. It can be understood that the adjusting groove is an oblong hole with a width matching the diameter of the eccentric part.

[0031] Understandably, the locking mechanism 550 can use a pin or bolt to lock the adjusting handle 540 to the adjusting mounting plate 520. (Refer to...) Figure 2 , Figure 4 , Figure 6 and Figure 7In this embodiment, the locking mechanism 550 includes a locking tooth plate 551 and a locking pin 553. The locking pin 553 is rotatably disposed at one end of the adjusting handle 540 facing away from the adjusting eccentric shaft 530. One end edge of the locking tooth plate 551, which is intended to be the terminal limiting block 220, is arc-shaped, and the arc-shaped edge of the locking tooth plate 551 is provided with locking teeth. The locking pin 553 is provided with a locking boss that matches the tooth groove of the locking teeth. The locking boss is disposed on the inner surface of the locking pin 553. A locking elastic member 552 is provided between the locking pin 553 and the adjusting handle 540. The locking elastic member 552 continuously applies a pushing force to the locking pin 553 in the direction of the locking tooth plate 551, so that the locking boss is inserted into any tooth groove of the locking teeth. When adjustment is needed, the locking pin 553 is moved outward to disengage the locking boss from the groove of the locking tooth, thereby allowing the adjusting handle 540 to rotate, which in turn rotates the adjusting eccentric shaft 530 to adjust the pressing stroke of the lower die mechanism 200. After adjustment, the locking pin 553 is released, and under the elastic force of the locking elastic element 552, the locking pin 553 is inserted into the corresponding groove, relocking the position of the adjusting handle 540.

[0032] Reference Figure 6 and Figure 7 To facilitate the replacement of the inner cutting blade 230, the inner cutting blade 230 is connected to the adjusting slider 510 via the adapter block 511. The adjusting slider 510 and the adapter block 511 are connected by an easily detachable tenon joint. A semi-open groove is provided on the outer side of the lower mold slider 210. The adjusting slider 510, the adapter block 511, and the terminal limiting block 220 are slidably disposed in the groove of the lower mold slider 210. A semi-open groove is also provided on the outer side of the sliding frame 310. The lower mold slider 210 is slidably disposed in the groove of the sliding frame 310. A detachable outer sealing plate 313 is provided on the outer side of the sliding frame 310. The lower mold slider 210, as well as the terminal limiting block 220, the adjusting slider 510, and the adapter block 511 on the lower mold slider 210, are restricted by the outer sealing plate 313 in the groove of the sliding frame 310. Both the lower end of the inner cutting blade 230 and the upper end of the adapter block 511 are provided with an engagement structure. The inner cutting blade 230 is detachably connected to the adapter block 511 through the engagement structure. After engagement, the inner cutting blade 230 and the adapter block 511 cannot be separated in the movement direction of the lower die mechanism 200. The cutting elastic element 240 is disposed between the terminal limiting block 220 and the adapter block 511.

[0033] Reference Figure 2 , Figure 3 and Figure 7In this embodiment, an auxiliary support 211 is provided on the upper surface of the lower mold slider 210. The upper end of the auxiliary support 211 has a support groove with a width matching the width of the terminal. The auxiliary support 211 supports the connecting part of the terminal during the crimping process, thereby preventing deformation of the non-piercing part of the terminal during crimping. The connecting part of the terminal falls into the support groove during the lifting of the auxiliary support 211. A positioning pin 221 is slidably disposed within the terminal positioning block. The shape of the positioning pin 221 matches the positioning hole on the terminal frame. A positioning elastic element 222 is provided between the lower end of the positioning pin 221 and the adapter block 511. During the crimping process, the positioning pin 221 approaches the upper mold mechanism 100 along with the terminal limiting block 220 and is first inserted into the positioning hole on the terminal frame to ensure that the terminal can fall into the slide of the limiting terminal block, ensuring crimping accuracy.

[0034] Understandably, the crimping drive device can employ a linear drive mechanism such as a pneumatic cylinder or an electric cylinder. (Refer to...) Figure 1 , Figure 3 , Figure 4 and Figure 5 In this embodiment, the pressing drive device drives the lower die mechanism 200 through a cam mechanism. A pressing groove is provided on the lower die slider 210, and a pressing slider 330 is disposed within the pressing groove. A pressing eccentric shaft 320 is rotatably mounted on the sliding frame 310. The output end of the pressing eccentric shaft 320 is rotatably connected to the pressing slider 330, and the input end of the pressing eccentric shaft 320 is rotatably connected to the output shaft of the pressing drive motor. The pressing drive motor drives the pressing eccentric shaft 320 to rotate, thereby causing the output end of the pressing eccentric shaft 320 to rotate eccentrically, causing the lower die slider 210 to reciprocate along the groove of the sliding frame 310.

[0035] Reference Figure 2 In this embodiment, a product connecting plate 312 is provided on the upper end of the sliding frame 310 facing away from the terminal feeding mechanism 400. The product connecting plate 312 is used to support the product to be crimped with terminals. A waste cutting blade 250 is provided on the lower mold slider 210 facing away from the terminal feeding mechanism 400. When the lower mold mechanism 200 moves, the waste cutting blade 250 will move with the lower mold mechanism 200 and cooperate with the product connecting plate 312 to cut off the remaining frame waste after the terminal is removed, so as to facilitate the recycling of frame waste.

[0036] Reference Figure 2To further facilitate the recycling of frame scrap, a scrap recycling bin 600 is provided on the side of the sliding frame 310 facing away from the terminal feeding mechanism 400. The scrap recycling bin 600 has a scrap inlet at the upper end and a scrap outlet at the lower end. A closable scrap door 610 is provided on the scrap outlet, which can be opened and closed by the scrap driving mechanism 620. A guide wedge 260 is provided below the scrap cutting blade 250 to guide the frame scrap at the cutting end to the scrap inlet. When the frame scrap is cut by the scrap cutting blade 250, the cut frame segment flows into the scrap recycling bin 600 along the wedge surface at the upper end of the guide wedge 260. When the scrap recycling bin 600 is full, the scrap door 610 can be opened by the scrap driving mechanism 620 to empty the scrap recycling bin 600. In this embodiment, the waste door 610 is hinged to the waste recycling bin 600. The waste recycling bin 600 is provided with a slide cylinder. The slide of the slide cylinder is connected to the waste door 610 through a connecting rod. The two ends of the connecting rod are rotatably connected to the slide of the slide cylinder and the waste door 610, respectively.

[0037] Reference Figure 8 and Figure 9 In this embodiment, the upper mold mechanism 100 includes an upper mold mounting block 110, a forming blade 120, and a forming auxiliary head 130. The forming blade 120 is disposed at one end of the upper mold mounting block 110 facing the lower mold mechanism 200, and this end has a forming groove for pressing the piercing portion of the terminal. The forming auxiliary head 130 is slidably disposed within the upper mold mounting block 110, and the shape of the end of the forming auxiliary head 130 facing the lower mold mechanism 200 matches the shape of the auxiliary support 211. An auxiliary head driving device 140 is disposed within the upper mold mounting block 110, and the auxiliary head driving device 140 drives the forming auxiliary head 130 to press against the lower mold mechanism 200. (Refer to...) Figure 10 In this embodiment, the lower end of the forming blade 120 is provided with two arc-shaped forming grooves side by side. These grooves guide the inward bending and folding of both sides of the terminal piercing portion, allowing the terminal to be electrically connected to the wiring on the product while simultaneously fastening onto the product. In this embodiment, the auxiliary head driving device 140 is a cylinder. During crimping, the auxiliary head driving device 140 synchronously drives the forming auxiliary head 130 to extend towards the auxiliary support 211, pressing the terminal onto the auxiliary support 211. Subsequently, the auxiliary head driving device 140 acts as a spring, ensuring that the position of the terminal does not change during the crimping process, thereby ensuring the crimping accuracy of the terminal. (Refer to...) Figure 8 and Figure 10 In this embodiment, a guide baffle 121 is provided on the outer side of the forming blade 120. The guide baffle 121 blocks part of the outer end of the forming groove, further preventing the terminal from moving longitudinally outward during the crimping process.

[0038] Reference Figure 9In this embodiment, a pressure sensor 150 is provided between the upper end of the forming blade 120 and the upper mold mounting block 110 to collect the pressing pressure and better control the pressing effect. The forming blade 120 is disposed in the cavity inside the upper mold mounting block 110, and there is a small gap between the forming blade 120 and the side wall of the cavity of the upper mold mounting block 110 so that the pressure sensor 150 can collect the pressure on the forming blade 120.

[0039] It is understood that the terminal feeding mechanism 400 should include a flow channel for the frame of terminals to flow through, and a terminal driving mechanism for driving the terminals to flow along the flow channel. The terminal driving mechanism can be a conveyor belt or a conveyor wheel mechanism, etc., and its specific structure is common knowledge in the art and will not be described in detail here.

[0040] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 should not be construed as a limitation of this utility model.

[0041] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A terminal crimping mechanism characterized by comprising: The terminal crimping device comprises an upper die mechanism (100), a lower die mechanism (200), a crimping driving mechanism (300), a terminal feeding mechanism (400) and a crimping stroke adjusting mechanism (500), the terminal feeding mechanism (400) is arranged on one side of the upper die mechanism (100) and the lower die mechanism (200) and is used for conveying a terminal to the upper die mechanism (100) and the lower die mechanism (200), the lower die mechanism (200) is connected with the crimping driving mechanism (300), the crimping driving mechanism (300) is used for driving the lower die mechanism (200) to approach the upper die mechanism (100) so as to crimp the terminal on a product, and the crimping stroke adjusting mechanism (500) is used for adjusting the crimping stroke of the lower die mechanism (200).

2. The terminal crimping mechanism according to claim 1, characterized by The crimping driving mechanism (300) comprises a crimping driving device and a sliding frame (310), the lower die mechanism (200) is slidingly arranged in the sliding frame (310), the lower die mechanism (200) can slide along the sliding frame (310) under the driving of the crimping driving device, an upper end of the sliding frame (310) is provided with a cutting outer cutter (311), the cutting outer cutter (311) is provided with a frame flow channel through which a frame of the terminal passes, the lower die mechanism (200) comprises a lower die sliding block (210), a terminal limiting block (220) and a cutting inner cutter (230), the terminal limiting block (220) is slidingly connected with the lower die sliding block (210), an upper end of the terminal limiting block (220) is provided with a sliding channel with a width matched with that of the terminal, the crimping stroke adjusting mechanism (500) is arranged on the sliding frame (310), an upper end of the cutting inner cutter (230) is slidingly arranged in the sliding channel, the cutting inner cutter (230) is connected with the lower die sliding block (210) through the crimping stroke adjusting mechanism (500), and a cutting elastic element (240) is arranged between the terminal limiting block (220) and the crimping stroke adjusting mechanism (500), when the lower die mechanism (200) approaches the upper die mechanism (100), the cutting inner cutter (230) cooperates with the cutting outer cutter (311) to separate the terminal from the frame of the terminal.

3. The terminal crimping mechanism according to claim 2, characterized by The crimping stroke adjusting mechanism (500) comprises an adjusting slider (510), a locking mechanism (550), an adjusting eccentric shaft (530), an adjusting mounting plate (520) and an adjusting handle (540), the adjusting slider (510) is slidingly arranged in the lower die slider (210), the adjusting slider (510) is provided with an adjusting groove, the adjusting eccentric shaft (530) passes through the adjusting groove, the eccentric part of the adjusting eccentric shaft (530) is located in the adjusting groove, the adjusting mounting plate (520) is connected with the lower die slider (210), the two ends of the adjusting eccentric shaft (530) are rotatably connected with the lower die slider (210) and the adjusting mounting plate (520) respectively, the adjusting handle (540) is arranged at one end of the adjusting eccentric shaft (530), the adjusting handle (540) is arranged outside the adjusting mounting plate (520), the locking mechanism (550) is arranged on the adjusting mounting plate (520), the locking mechanism (550) is used for locking the position of the adjusting handle (540), the cutting inner cutter (230) is connected with the adjusting slider (510), and the cutting elastic element (240) is arranged between the terminal limiting block (220) and the adjusting slider (510).

4. The terminal crimping mechanism according to claim 3, characterized by The locking mechanism (550) comprises a locking toothed plate (551) and a locking pin (553), the locking pin (553) is rotatably arranged at one end of the adjusting handle (540) away from the adjusting eccentric shaft (530), the edge of one end of the locking toothed plate (551) away from the terminal limiting block (220) is in arc shape, the arc-shaped edge of the locking toothed plate (551) is provided with locking teeth, the locking pin (553) is provided with a locking boss matched with the tooth groove of the locking teeth, and a locking elastic element (552) is arranged between the locking pin (553) and the adjusting handle (540), the locking elastic element (552) continuously applies a pushing force to the locking pin (553) in the direction of the locking toothed plate (551), so that the locking boss is inserted into any tooth groove of the locking teeth.

5. The terminal crimping mechanism according to claim 2, characterized by The upper end surface of the lower die slider (210) is provided with an auxiliary support (211), the upper end of the auxiliary support (211) is provided with a support groove with a width matched with that of the terminal, and the auxiliary support (211) is used for supporting the connecting portion of the terminal.

6. The terminal crimping mechanism according to claim 5, characterized by The upper die mechanism (100) comprises an upper die mounting block (110), a forming cutter (120) and a forming auxiliary head (130), the forming cutter (120) is arranged at one end of the upper die mounting block (110) facing the lower die mechanism (200), one end of the forming cutter (120) facing the lower die mechanism (200) is provided with a forming groove for crimping forming the piercing part of the terminal, the forming auxiliary head (130) is slidingly arranged in the upper die mounting block (110), the shape of the forming auxiliary head (130) matches the shape of the auxiliary support (211), the auxiliary head driving device (140) is arranged in the upper die mounting block (110), and the auxiliary head driving device (140) is used to drive the forming auxiliary head (130) to press on the lower die mechanism (200).

7. The terminal crimping mechanism of claim 6, wherein The side of the forming cutter (120) away from the forming auxiliary head (130) is provided with a guide baffle (121).

8. The terminal crimping mechanism of claim 1, wherein The side of the lower die mechanism (200) away from the terminal feeding mechanism (400) is provided with a waste cutting cutter (250), the side of the lower die mechanism (200) away from the terminal feeding mechanism (400) is provided with a product connecting plate (312), and the waste cutting cutter (250) and the product connecting plate (312) cooperate to cut the frame remaining after cutting the terminal when the lower die mechanism (200) acts.

9. The terminal crimping mechanism of claim 8, wherein The side of the lower die mechanism (200) away from the terminal feeding mechanism (400) is provided with a waste recycling box (600), the upper end of the waste recycling box (600) is provided with a waste inlet, the lower end of the waste recycling box (600) is provided with a waste outlet, the waste outlet is provided with an openable and closable waste door (610), the waste door (610) can be opened and closed under the drive of a waste driving mechanism (620), and the lower side of the waste cutting cutter (250) is provided with a guide wedge (260) for guiding the cut frame waste to the waste inlet.

10. The terminal crimping mechanism of claim 2, wherein The terminal positioning block is slidingly provided with a positioning pin (221), the shape of the positioning pin (221) matches the positioning hole on the frame of the terminal, and the lower end of the positioning pin (221) and the crimping stroke adjusting mechanism (500) are provided with a positioning elastic element (222).

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