Wire harness terminal crimping device

Abstract

The utility model relates to a wire harness terminal crimping device, which comprises an upper crimping die and a lower crimping die, the upper crimping die comprises an upper rotating disc, an upper die is fixed on the upper rotating disc, and the lower crimping die is provided with a lower die; the upper driving structure controls the upper rotating disc to rotate; the crimping driving structure is used for controlling the upper rotating disc to move up and down, pressing the wire core of the wire harness and the terminal together, and controlling the pressure of the upper die when the terminal is pressed; the pressing adjusting structure is used for adjusting the position of the upper die on the upper rotating disc and controlling the pressure of the upper die in the wire harness pressing process, and by controlling the pressure in the wire harness and terminal pressing process, in the wire harness and terminal pressing process, the wire harness and the terminal can be firmly fixed, meanwhile, the wire harness and the terminal cannot be damaged, and the wire harness and the terminal cannot be damaged. The pressing pressure of the upper die on the wire harness is adjusted and controlled, so that the wire harness can be pressed in the using process, meanwhile, the wire harness cannot be damaged, and the production quality of the wire harness terminal is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wiring harness processing, particularly to wiring harness terminal crimping device. BACKGROUND

[0002] In the field of electrical connection, wiring harness terminal crimping is the core process to realize the reliable connection of wires and terminals, and its quality directly affects the conductivity, mechanical strength and long-term stability of electrical connection. Although the existing automatic crimping equipment is equipped with a pressure sensor, it is generally fixed pressure control. For wiring harnesses with different wire diameters, materials (such as copper core and aluminum core) or insulation layer thickness differences, the fixed pressure mode is easy to cause crimping force overload or deficiency. Excessive crimping force can cause metal core fracture and insulation layer extrusion rupture; insufficient crimping force can cause the contact resistance between the terminal and the wire to increase, leading to local heating and even short circuit risk. SUMMARY

[0003] Therefore, it is necessary to provide a wiring harness terminal crimping device to solve the problems in the prior art.

[0004] A wiring harness terminal crimping device, characterized in that it comprises an upper die and a lower die, the upper die comprises an upper rotating disc, and a plurality of upper dies are fixed on the side edge of the upper rotating disc; the lower die is provided with a lower die;

[0005] An upper driving structure is used to control the rotation of the upper rotating disc, so that the upper dies on the side edge of the upper rotating disc are aligned with the lower dies;

[0006] A crimping driving structure is used to control the up-and-down movement of the upper rotating disc, so that the upper dies are pressed together with the lower dies, the wire core of the wiring harness is pressed together with the terminal, and the pressure of the upper dies when pressing the terminal is controlled;

[0007] A pressing adjusting structure is used to adjust the position of the upper dies on the upper rotating disc and control the pressure of the upper dies during the pressing of the wiring harness.

[0008] In one embodiment, the upper die comprises a fixed plate fixed on the side edge of the upper rotating disc, the fixed plate is fixed opposite to the upper rotating disc, a stamping plate is fixed on the side edge of the fixed plate, the stamping plate is provided with a stamping part abutting against the crimping position of the wire core and the terminal of the wiring harness, the terminal is pressed together with the wiring harness, a wire pressing plate is provided on the side edge of the stamping plate and abuts against the wiring harness, and the wire pressing plate is used to press the wiring harness, a first elastic member and a pressing block are provided on the upper side of the wire pressing plate.

[0009] In one embodiment, the fixed plate is U-shaped, a fixed groove is arranged in the middle part of the fixed plate, a fixed end plate is arranged in the fixed groove of the fixed plate, the fixed end plate and the stamping plate are provided with a fixed hole transversely arranged, the fixed hole is fixed by a fixed bolt, the wire pressing plate is provided with a first waist-shaped hole corresponding to the fixed hole, and the wire pressing plate is connected with the fixed bolt through the first waist-shaped hole.

[0010] In one of the embodiments, the wire pressing plate outer side is further provided with a wire stripping plate, the wire stripping plate is provided with a second waist-shaped hole corresponding to the fixing hole, the wire stripping plate is L-shaped, including a horizontal part and a vertical part, the wire stripping plate outer side is provided with an outer fixing plate, the outer fixing plate is fixed with the fixing bolt through the outer fixing hole, the outer fixing plate lower side is provided with a counterbore, the counterbore is provided with a second elastic element, the second elastic element lower side abuts with the horizontal part upper side, and the wire stripping plate lower side is provided with a V-shaped groove.

[0011] In one of the embodiments, the punch plate inner side is further provided with an inner fixing plate, the inner fixing plate side edge is provided with a limiting groove, the limiting groove is communicated with the outside at the inner fixing plate lower side position, the limiting groove is provided with a limiting plate, the limiting plate is provided with a third waist-shaped hole corresponding to the fixing hole, the limiting plate is connected with the fixing bolt through the third waist-shaped hole, and the third elastic element is arranged between the limiting plate and the limiting groove, so that the limiting plate moves towards the inner fixing plate lower side position.

[0012] In one of the embodiments, the pressing adjusting structure includes an adjusting shaft arranged vertically with the upper rotating disc, the adjusting shaft end is provided with an adjusting wheel, the adjusting wheel is provided with a plurality of abutting surfaces, the abutting surfaces are not completely the same distance from the adjusting shaft axis, the adjusting shaft other end is provided with an adjusting driving structure for controlling the adjusting shaft rotation, and the adjusting wheel is located at the upper mold inner side position of the upper rotating disc. When the adjusting wheel rotates, the abutting surfaces abut with the pressing block, and the force when the wire pressing plate is pressed on the wire harness outer side is controlled.

[0013] In one of the embodiments, the pressure welding driving structure includes a pressure welding motor, the motor shaft of the pressure welding motor is connected with a cam, the cam is connected with the motor shaft at the center position, the cam outer side of the center is provided with a connecting rod through a rotating shaft, the connecting rod other end is connected with a moving rod through a rotating shaft, the moving rod lower side is provided with a moving plate, the moving plate is fixed with the rack through a vertical guide rail sliding block structure, and the upper rotating disc is arranged at the side edge of the moving plate through a rotating shaft. When the pressure welding motor rotates, the cam rotates is controlled, and the moving plate moves up and down in the vertical guide rail direction.

[0014] In one of the embodiments, the pressure detection structure is arranged between the moving rod and the moving plate, for detecting the pressure when the upper mold and the lower mold are pressed.

[0015] In one of the embodiments, the pressure welding lower mold includes a lower rotating disc, the lower mold is provided with a plurality of lower molds, which are annularly distributed on the side surface of the lower rotating disc, the lower rotating disc side edge is provided with a lower driving structure for controlling the lower rotating disc rotation, and the lower mold is provided with a fixing element.

[0016] In one of the embodiments, the upper rotary disc and / or the lower rotary disc is provided with a clamping groove on one side, a through hole is arranged in the clamping groove, the upper die and / or the lower die is provided with a fixing member penetrating the through hole, the other side of the upper rotary disc and / or the lower rotary disc is provided with a fixing block for fixing the fixing member in the clamping groove of the upper rotary disc and / or the lower rotary disc, the fixing block comprises a fixing part fixed on the side of the upper rotary disc and / or the lower rotary disc, the fixing part is provided with a fixing hole in the radial direction, a fixing rod is arranged in the fixing hole, the fixing hole and / or the fixing rod are tapered, a wedge-shaped block is fixed on the end of the fixing rod, a fixing spring is sleeved on the outside of the fixing rod, and the wedge-shaped block is clamped with the fixing member.

[0017] The wire harness terminal crimping device can fix the wire harness and the terminal firmly without damaging the wire harness and the terminal during the crimping of the wire harness and the terminal, so as to ensure the crimping quality, and the pressure of the upper die on the wire harness can be adjusted, so that the wire harness can be pressed without being damaged during use, thereby improving the production quality of the wire harness terminal. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front structure schematic view of the wire harness terminal crimping device.

[0019] Figure 2 It is a front structure schematic view of the wire harness terminal crimping device. Figure 1 It is an enlarged view structure schematic view of A in the wire harness terminal crimping device.

[0020] Figure 3 It is an enlarged view structure schematic view of B in the wire harness terminal crimping device. Figure 1

[0021] Figure 4 It is an enlarged view structure schematic view of C in the wire harness terminal crimping device. Figure 1

[0022] Figure 5 It is a back structure schematic view of the wire harness terminal crimping device.

[0023] Figure 6 It is an enlarged view structure schematic view of D in the wire harness terminal crimping device. Figure 1

[0024] Figure 7 It is a structure schematic view of the upper die of the wire harness terminal crimping device.

[0025] Figure 8 It is an exploded view structure schematic view of the upper die of the wire harness terminal crimping device.

[0026] Figure 9 It is a sectional view structure schematic view of the upper die of the wire harness terminal crimping device.​​​

[0027] 1, upper die;

[0028] 11, upper rotating disc; 111, clamping groove;

[0029] 12, upper mold; 121, fixed plate; 1211, fixed end plate; 1212, fixed hole;

[0030] 122, stamping plate;

[0031] 123, wire pressing plate; 1231, first waist-shaped hole;

[0032] 124, pressing block; 1241, first elastic member;

[0033] 125, wire stripping plate; 1251, second waist-shaped hole;

[0034] 126, outer fixed plate; 1261, second elastic member;

[0035] 127, inner fixed plate;

[0036] 128, limiting plate; 1281, third waist-shaped hole; 1282, third elastic member; 1283, limiting groove;

[0037] 129, fixed member;

[0038] 13, fixed block; 131, fixed part; 132, fixed rod;

[0039] 2, lower die; 21, lower rotating disc; 22, lower mold; 23, lower driving structure;

[0040] 3, upper driving structure;

[0041] 4, pressing driving structure; 41, pressing motor; 42, cam; 43, connecting rod; 44, moving rod; 45, moving plate; 46, pressure detection structure;

[0042] 5, pressing adjusting structure; 51, adjusting shaft; 52, adjusting wheel; 53, abutting surface; 54, adjusting driving structure. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0044] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] like Figures 1 to 9 As shown, a wire harness terminal crimping device is characterized in that it includes an upper crimping die 1 and a lower crimping die 2. The upper crimping die includes an upper rotating disk 11, and a plurality of upper molds 12 are fixed on the side of the upper rotating disk 11. The lower crimping die 2 is provided with a lower mold 22.

[0047] The upper drive structure 3 is used to control the rotation of the upper rotating disk 11 so that the upper mold 12 on the side of the upper rotating disk 11 is aligned with the lower mold 22.

[0048] The crimping drive structure 4 is used to control the upper rotating disk 11 to move up and down, so that the upper mold 12 and the lower mold 22 are pressed together, pressing the wire core of the wire harness and the terminal together, and controlling the pressure of the upper mold 12 when pressing the terminal.

[0049] The clamping adjustment structure 5 is used to adjust the position of the upper mold 12 on the upper rotating disk 11 and control the pressure of the upper mold 12 during the clamping process of the wire harness.

[0050] By controlling the pressure during the crimping process of the wire harness and terminals, the wire harness and terminals can be firmly fixed together without damaging them, thus ensuring the quality of the crimping. At the same time, by adjusting and controlling the pressure of the upper mold 12 on the wire harness, the wire harness can be pressed tightly during use without damaging it, thereby improving the production quality of the wire harness terminals.

[0051] At this time, the upper die 12 arranged on the upper rotating disc 11 is different, which can adapt to the crimping process of various types of wire harness terminals. In the production process, the upper die 12 corresponding to each type of wire harness terminal is fixed on the side of the upper rotating disc 11, and then the upper rotating disc 11 is controlled to rotate according to the actual needs in the production process, so that the corresponding upper die 12 rotates to the lowest point position and corresponds to the lower die 22, thereby completing the crimping process of the wire harness terminal.

[0052] At this time, the upper die 12 is used to complete the crimping process of the wire harness and the terminal, so in this embodiment, the upper die 12 includes a fixed plate 121 fixed on the side of the upper rotating disc 11, the fixed plate 121 is fixed relative to the upper rotating disc 11, a stamping plate 122 is fixed on the side of the fixed plate 121, the stamping plate 122 is provided with a stamping portion, which abuts against the crimping position of the wire core and the terminal, and the terminal and the wire harness are pressed together, a wire pressing plate 123 is provided on the side of the stamping plate 122, which abuts against the wire harness and is used to press the wire harness tightly, and a first elastic member 1241 and a pressing block 124 are provided on the upper side of the wire pressing plate 123. The stamping plate 122 is fixed with the fixed plate 121, and a stamping portion is arranged on the lower side of the stamping plate 122, which is provided with a V-shaped groove, and two semicircular arcs are arranged at the bottom of the groove. In this way, in the process of contacting the terminal, the two side edges of the terminal can be deformed to deform the two side edges of the terminal towards the middle, thereby pressing the wire harness (peeling) at the middle position tightly, thereby completing the crimping of the wire harness and the terminal. At the same time, the wire pressing plate 123 is arranged at the side position of the stamping plate 122, which is used to press the outer end of the crimping part of the wire harness tightly, so as to avoid the movement of the wire harness at the end during the crimping process of the wire harness and the terminal, thereby avoiding the problem of deviation of the wire harness.

[0053] At this time, the wire pressing plate 123 contacts the wire harness, and if the force acting on the wire pressing plate 123 is too large during the crimping process, the wire skin (insulating sleeve) on the surface of the wire harness will be damaged. Therefore, at this time, the first elastic member 1241 and the pressing block 124 are arranged on the upper side of the wire pressing plate 123. The first elastic member 1241 can form an elastic buffer between the wire pressing plate 123 and the wire harness when they contact each other, thereby avoiding the damage of the wire skin on the surface of the wire harness. At the same time, the pressing block 124 is arranged on the upper side of the first elastic member 1241, and the pressing block 124 abuts against the pressing adjusting structure 5. In this way, the position of the pressing block 124 can be controlled by the pressing adjusting structure 5, thereby controlling the length of the first elastic member 1241 after being compressed initially, so as to control the force acting on the wire harness by the wire pressing plate 123, thereby achieving the state of pressing the wire harness without damaging the wire skin.

[0054] At this time, the pressing block 124 includes a first pressing block 124 and a second pressing block 124, wherein the first pressing block 124 is L-shaped, the vertical position of the first pressing block 124 is provided with a waist-shaped hole, the side of the vertical position of the second pressing block 124 is provided with the second pressing block 124, the second pressing block 124 is provided with a through hole, and the bolt is fixed with the fixed plate 121 after passing through the through hole of the second pressing block 124 and the waist-shaped hole of the first pressing block 124. At this time, the first elastic piece 1241 is located between the upper side of the horizontal position of the first pressing block 124 and the lower side of the second pressing block 124. In this way, since the first pressing block 124 is connected with the bolt at the position of the waist-shaped hole, the first pressing block 124 can move up and down, so that the pressing plate 123 at the lower side of the first pressing block 124 can move up and down, the first pressing block 124 is in abutment with the pressing adjustment structure 5, so that the position of the first pressing block 124 can be adjusted through the pressing adjustment structure 5, thereby adjusting the initial position of the pressing plate 123, so as to meet the requirements of different types of wire harnesses.

[0055] Further, after the first elastic piece 1241 is arranged, the pressing plate 123 will move up and down. Therefore, in order to ensure that the pressing plate 123 has a certain space for moving up and down, in the embodiment, the fixed plate 121 is U-shaped, and the middle part is provided with a fixed groove. The fixed groove of the fixed plate 121 is provided with a fixed end plate 1211. The fixed end plate 1211 and the stamping plate 122 are provided with a fixed hole 1212 which is transverse to the fixed hole 1212. The fixed hole 1212 is fixed by a fixed bolt at the position of the fixed hole 1212. The pressing plate 123 is provided with a first waist-shaped hole 1231 corresponding to the fixed hole 1212. The pressing plate 123 is connected with the fixed bolt through the first waist-shaped hole 1231.

[0056] After the wire harness and the terminal are pressed, the upper die 12 moves downward, and the pressed terminal can be clamped in the position of the punching part on the lower side of the punching plate 122, so as to move up and down with the upper die 12, which can scratch the terminal and affect the quality of the terminal. Therefore, after the pressing is completed, the wire harness needs to be pressed downward during the upward movement of the upper die 12 to avoid the wire harness from moving upward, so that the terminal is separated from the punching plate 122. Therefore, in the embodiment, the wire pressing plate 123 is provided with a wire separating plate 125 outside, the wire separating plate 125 is provided with a second waist-shaped hole 1251 corresponding to the fixing hole 1212, the wire separating plate 125 is L-shaped and includes a horizontal part and a vertical part, the wire separating plate 125 is provided with an outer fixing plate 121126 outside, the outer fixing plate 121126 is fixed by the outer fixing hole 1212 and the fixing bolt, the outer fixing plate 121126 is provided with a counterbore on the lower side, the counterbore is provided with a second elastic element 1261, the second elastic element 1261 is in abutment with the upper side of the horizontal part on the lower side, and the wire separating plate 125 is provided with a V-shaped groove on the lower side. Under the action of the first elastic element 1241, the wire separating plate 125 can move up and down, when the wire separating plate 125 is not in contact with the terminal and the wire harness, the V-shaped groove of the wire separating plate 125 is lower than the position of the punching part of the punching plate 122, during the downward movement of the upper die 12 and the contact with the wire harness and the terminal, the wire separating plate 125 first contacts the wire harness, then the upper die 12 continues to move downward, the wire separating plate 125 moves upward, so that the second elastic element 1261 is compressed, the punching plate 122 and the wire pressing plate 123 contact the terminal and the wire harness, and then the pressing process is completed. After the pressing, the upper die 12 moves upward, at this time, the punching plate 122 and the wire pressing plate 123 move upward first, and the wire separating plate 125 remains stationary under the action of the second elastic element, so that the wire harness is pressed and cannot move, so as to separate the punching plate 122 from the terminal. During the continuous upward movement of the upper die 12, the wire separating plate 125 is separated from the wire harness, and the wire harness and the terminal are gradually separated from the upper die 12 after the pressing is completed, so as to ensure the normal taking out of the wire harness after the pressing.

[0057] Meanwhile, in the process of crimping, the terminal needs to be ensured not to move, therefore, in the embodiment, the inner side of the stamping plate 122 is further provided with an inner fixing plate 121127, the side of the inner fixing plate 121127 is provided with a limiting groove, the limiting groove is communicated with the outside at the lower side of the inner fixing plate 121127, a limiting plate 128 is arranged in the limiting groove, the limiting plate 128 is provided with a third waist-shaped hole 1281 corresponding to the fixing hole 1212, the limiting plate 128 is connected with the fixing bolt through the third waist-shaped hole 1281, a third elastic element 1282 is arranged between the limiting plate 128 and the limiting groove, so that the limiting plate 128 moves towards the lower side of the inner fixing plate 121127, the lower side of the limiting plate 128 is provided with a limiting groove 1283 matched with the terminal. Under the action of the limiting plate 128, the terminal is fixed, so that the terminal will not move in the process of crimping, thereby ensuring the crimping quality of the terminal and the wire harness.

[0058] The compression adjusting structure 5 is used to adjust the position of the compression plate by the pressing block 124, so as to control the force of the compression plate acting on the wire harness, therefore, in the embodiment, in order to conveniently adjust different force requirements, the compression adjusting structure 5 includes an adjusting shaft 51 arranged vertically with the upper rotating disc 11, the adjusting shaft 51 is provided with an adjusting wheel 52 at the end, the adjusting wheel 52 is provided with a plurality of abutting surfaces 53, the distance between the abutting surfaces 53 and the axis of the adjusting shaft 51 is not completely the same, the other end of the adjusting shaft 51 is provided with an adjusting driving structure 54 for controlling the rotation of the adjusting shaft 51, the adjusting wheel 52 is located at the inner side of the upper die 12 of the upper rotating disc 11, when the adjusting wheel 52 rotates, the abutting surface 53 abuts with the pressing block 124, and controls the force of the compression plate 123 when it is compressed on the outer side of the wire harness. At this time, the adjusting driving structure 54 is used to control the rotation of the adjusting shaft 51, in the embodiment, a motor is used for driving, a gear transmission structure (bevel gear transmission) can be added between the motor and the adjusting shaft 51 to change the transmission direction, so that the motor can be arranged at the outer side of the first rotating disc. At this time, under the action of the motor, the adjusting shaft rotates, so that the adjusting wheel 52 rotates, a plurality of abutting surfaces 53 are arranged at the outer side of the adjusting wheel 52, the abutting surfaces 53 are planes, so that a plurality of planes are continuous, thereby forming the outer side surface of the adjusting wheel 52. In the process of rotation of the adjusting wheel 52, different abutting surfaces 53 abut with the pressing block 124 (the first pressing block 124), so that the first pressing block 124 is in different positions, thereby making the compression plate be in different positions.

[0059] At this time, the adjusting drive structure 54 of the compression adjusting structure 5 is fixed relative to the upper rotating disc 11, that is, the adjusting drive structure 54, the adjusting shaft 51, and the adjusting wheel 52 are synchronously moved up and down with the upper rotating disc 11, so that the adjusting wheel 52 and the upper die 12 are in a relatively fixed position during the up-and-down movement of the upper rotating disc 11, so that the position of the corresponding compression block 124 of the upper die 12 does not change, so that the wire pressing plate 123 of the upper die 12 is in the same position when the upper die 12 does not contact the wire harness and the terminal, and the relative movement between the upper die 12 and the adjusting wheel 52 caused by the up-and-down movement of the upper rotating disc 11 is avoided.

[0060] During the compression process, the upper rotating disc 11 needs to move up and down, in order to ensure the stability of the upper rotating disc 11 during the movement, in the embodiment, the compression drive structure 4 comprises a compression motor 41, the shaft of the compression motor 41 is connected with a cam 42, the cam 42 is connected with the shaft at the center of the circle, the cam 42 is provided with a connecting rod 43 outside the center of the circle through a rotating shaft, the other end of the connecting rod 43 is connected with a moving rod 44 through a rotating shaft, the lower side of the moving rod 44 is provided with a moving plate 45, the moving plate 45 is fixed with the rack through a vertical guide rail sliding block structure, the upper rotating disc 11 is rotatably arranged at the side of the moving plate 45 through a rotating shaft, when the compression motor rotates, the cam 42 rotates, and the moving plate 45 moves up and down in the vertical guide rail direction; the rotation of the cam 42 is controlled by the compression motor 41, and then the connecting rod 43 rotates, the moving rod 44 and the moving plate 45 move up and down during the rotation of the connecting rod 43, so as to control the up-and-down movement of the upper rotating disc 11, and the up-and-down control of the upper die 12 is completed, at this time, the displacement of the moving plate 45 moving up and down can be controlled by controlling the rotation angle of the shaft of the compression motor 41, and then the displacement of the stamping plate 122 is controlled, so that the precision during the compression process can be improved during the compression process of the wire harness and the terminal, and the cam 42 connecting rod 43 structure can quickly move the moving plate 45 and the upper rotating disc 11, thereby improving the processing efficiency.

[0061] In the process of pressing the wire harness and the terminal, the pressure of the pressing plate 122 on the terminal needs to be controlled, so the displacement of the upper die 12 needs to be controlled, and then the displacement of the upper rotating disc 11 needs to be controlled. At this time, in the embodiment, the pressure detection structure 46 is arranged between the moving rod 44 and the moving plate 45, which is used to detect the pressure when the upper die 12 and the lower die 22 are pressed. The pressure detection result is a pressure sensor, which is arranged between the moving rod 44 and the moving plate 45. When the lower die 22 moves downward, the pressing plate 122 of the lower die 22 contacts the terminal. At this time, when the crimping motor 41 rotates the control cam 42 to rotate, the upward and downward movement of the pressing plate 122 can be controlled. Therefore, by arranging the pressure detection structure 46 between the moving rod 44 and the moving plate 45, the pressure when the upper die 12 and the lower die 22 are pressed can be detected in real time. After reaching the preset required pressure, the crimping motor 41 stops rotating and reverses, and then the crimping process is completed.

[0062] The upper die 1 adopts a rotating disc structure, and a plurality of upper dies 12 can be arranged. At this time, in order to arrange a plurality of lower dies 22, the crimping lower die 2 comprises a lower rotating disc 21, and the lower dies 22 are arranged in a plurality of positions distributed in a ring shape on the side of the lower rotating disc 21. The side of the lower rotating disc 21 is provided with a lower driving structure 23 used to control the rotation of the lower rotating disc 21, and the lower dies 22 are provided with fixing members 129. The lower dies 22 are fixed to the side edge position of the lower rotating disc 21 through the fixing members 129. Under the action of the lower driving structure 23, the lower rotating disc 21 rotates, so as to control different lower dies 22 to rotate to the highest position, and form a crimping structure of the wire harness terminal with the upper die 12.

[0063] Due to the setting of the plurality of upper molds 12, lower molds 22, in order to facilitate installation, in the embodiment, the upper mold 12, the lower mold 22 and the upper rotating disc 11, the lower rotating disc 21 are detachably fixed, of course, can be directly fixed through the fastener, in the embodiment, are fixed through the quick release form, so that the dismounting process is convenient, specifically, in the embodiment, the upper rotating disc 11 and / or the lower rotating disc 21 side is equipped with the clamping groove 111, the clamping groove 111 position sets the through hole, the fixed plate 121 of the upper mold 12 and / or the lower mold 22 is equipped with the fixing piece 129 that penetrates the through hole, the other side of the upper rotating disc 11 and / or the lower rotating disc 21 is equipped with the fixed block 13, for the fixing piece 129 is fixed in the clamping groove 111 position with the upper rotating disc 11 and / or the lower rotating disc 21, the fixed block 13 includes the fixed part 131 fixed in the side of the upper rotating disc 11 and / or the lower rotating disc 21, the fixed hole 1212 is equipped with the fixed rod 132 along the radius direction of the fixed part 131, the fixed hole 1212 and / or the fixed rod 132 are tapered, the end of the fixed rod 132 is fixed with the wedge-shaped block, the outside of the fixed rod 132 is sleeved with the fixed spring, the wedge-shaped block is clamped with the fixing piece 129.

[0064] Specifically, the clamping groove 111 is arranged on the side of the upper rotating disc 11 and the lower rotating disc 21, and the upper mold 12 and the lower mold 22 are located at the position of the clamping groove 111, so that the upper mold 12 and the lower mold 22 can be positioned, at this time, the fixing piece 129 at the back position of the upper mold 12 and the lower mold 22 passes through the through hole at the position of the clamping groove 111 to the other side, and the fixing piece 129 is fixed by the fixed block 13 at the other side, so as to realize the fixation of the upper mold 12 and the lower mold 22, at this time, the fixing piece 129 includes a vertical position penetrating the through hole at the position of the clamping groove 111, and a clamping protrusion at the bottom of the vertical position, the clamping protrusion protrudes on both sides of the vertical position, thereby forming a T-shaped structure, the clamping protrusion at one side of the vertical position forms a wedge-shaped groove, so that when the upper mold 12 and the lower mold 22 are fixed by the fixed block 13, the clamping protrusion at one side of the fixing piece 129 of the upper mold 12 and the lower mold 22 abuts against the side position of the upper rotating disc 11 and the lower rotating disc 21, and the wedge-shaped groove abuts against the wedge-shaped block of the fixed block 13, thereby fixing the fixing piece 129 in two directions, so as to improve the fixation firmness of the upper mold 12 and the lower mold 22 and the upper rotating disc and the lower rotating disc 21.

[0065] At this time, in order to facilitate disassembly, the wedge-shaped block clamped with the wedge-shaped groove is connected through the fixing rod 132, a fixed spring is sleeved on the outside of the fixing rod 132, and the other end of the fixed spring is designed to pass through the fixing hole 1212 of the fixing portion 131. The fixed spring is in a compressed state, so that the wedge-shaped block can better abut the wedge-shaped groove position. After the upper die 12 and the lower die 22 are taken out, the fixed rod 132 only needs to be moved outward, so that the wedge-shaped block is separated from the wedge-shaped groove, and then the upper die 12 and the lower die 22 can be taken out.

[0066] A wire harness terminal crimping method, comprising,

[0067] The upper die 12 and the lower die 22 are fixed with the upper rotating disc 11 and the lower rotating disc 21 respectively;

[0068] The upper drive structure 3 and the lower drive structure 23 are controlled to rotate the preset upper die 12 and lower die 22 to the lowest point and the highest point position respectively, so that the upper die 12 and the lower die 22 are aligned vertically;

[0069] The upper rotating disc 11 is controlled to move up and down by the crimping drive structure 4, so that the upper die 12 and the lower die 22 are pressed together, and the crimping of the wire harness and the terminal is completed. In the crimping process, the pressure detection structure 46 detects the pressure of the wire harness and the terminal during crimping, and the crimping motor 41 of the crimping drive structure 4 is controlled to rotate to a certain angle, so that the pressure of the wire harness and the terminal during crimping reaches the preset requirement.

[0070] The adjustment drive structure 54 of the compression adjusting structure 5 is controlled to adjust the contact position of the abutting surface 53 of the adjusting wheel 52 with the upper die 12, so that the pressure of the upper die 12 during the compression of the wire harness reaches the preset requirement.

[0071] The upper rotating disc 11 and the lower rotating disc 21 are circular, and multiple upper dies 12 and lower dies 22 can be arranged. For different models of wire harness terminal crimping, multiple upper dies 12 and lower dies 22 can be fixed, and then the upper rotating disc 11 and the lower rotating disc 21 are controlled to rotate according to the model, the corresponding upper die 12 is controlled to the lowest position, and the lower die 22 is controlled to the highest position, so that the disassembly and replacement time of the die is reduced, and the work efficiency is improved.

[0072] In the crimping process, the pressure detection structure 46 detects the pressure of the wire harness and the terminal during crimping, so as to avoid the problem of poor crimping quality caused by excessive or insufficient pressure.

[0073] In the process of crimping, the position of the pressing line plate 123 in the upper die 12 can be controlled by the pressing adjusting structure 5, so that the wire harness can be pressed during crimping of the wire harness and the terminal, and movement of the wire harness is avoided.

[0074] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0075] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A wire harness terminal crimping device characterized by comprising: The crimping upper die and the crimping lower die, the crimping upper die comprises an upper rotating disc, and a plurality of upper dies are fixed on the side of the upper rotating disc, and the crimping lower die is provided with lower dies; The upper driving structure is used for controlling the rotation of the upper rotating disc, so that the upper dies on the side of the upper rotating disc are aligned with the lower dies; The crimping driving structure is used for controlling the up-down movement of the upper rotating disc, so that the upper dies are pressed together with the lower dies, the wire core and the terminal of the wire harness are pressed together, and the pressure of the upper dies when pressing the terminal is controlled. The pressure adjusting structure is used for adjusting the position of the upper dies on the upper rotating disc, and controlling the pressure of the upper dies during the pressing of the wire harness.

2. The wire harness terminal crimping device according to claim 1, characterized by The upper dies comprise a fixed plate fixed on the side of the upper rotating disc, the fixed plate is fixed opposite to the upper rotating disc, the fixed plate is provided with a stamping plate, the stamping plate is provided with a stamping part, the stamping part abuts against the crimping position of the wire core and the terminal of the wire harness, the terminal and the wire harness are pressed together, the stamping plate is provided with a wire pressing plate, the wire pressing plate abuts against the wire harness, and the wire pressing plate is used for pressing the wire harness, and the wire pressing plate is provided with a first elastic element and a pressing block on the upper side.

3. The wire harness terminal crimping device according to claim 2, characterized by The fixed plate is in a U shape, the middle part is provided with a fixed groove, the fixed end plate is arranged in the fixed groove of the fixed plate, the fixed end plate and the stamping plate are provided with a fixed hole which is transversely arranged, the fixed hole is fixed by a fixed bolt, the wire pressing plate is provided with a first waist-shaped hole which corresponds to the fixed hole, and the wire pressing plate is connected with the fixed bolt through the first waist-shaped hole.

4. The wire harness terminal crimping device according to claim 3, characterized by The wire pressing plate is further provided with a wire stripping plate on the outer side, the wire stripping plate is provided with a second waist-shaped hole which corresponds to the fixed hole, the wire stripping plate is in an L shape and comprises a horizontal part and a vertical part, the outer side of the wire stripping plate is provided with an outer fixed plate, the outer fixed plate is fixed with the fixed bolt through an outer fixed hole, the outer fixed plate is provided with a counterbore on the lower side, the counterbore is provided with a second elastic element, the second elastic element abuts against the upper side of the horizontal part on the lower side, and the wire stripping plate is provided with a V-shaped groove on the lower side.

5. The wire harness terminal crimping device of claim 4, wherein, The stamping plate is further provided with an inner fixed plate on the inner side, the inner fixed plate is provided with a limiting groove on the side, the limiting groove is communicated with the outside on the lower side of the inner fixed plate, the limiting groove is provided with a limiting plate, the limiting plate is provided with a third waist-shaped hole which corresponds to the fixed hole, the limiting plate is connected with the fixed bolt through the third waist-shaped hole, a third elastic element is arranged between the limiting plate and the limiting groove, so that the limiting plate moves towards the lower side of the inner fixed plate, and the limiting plate is provided with a limiting groove which is matched with the terminal on the lower side.

6. The wire harness terminal crimping device according to any one of claims 2 to 5, characterized by The pressure adjusting structure comprises an adjusting shaft which is arranged vertically to the upper rotating disc, the end of the adjusting shaft is provided with an adjusting wheel, the adjusting wheel is provided with a plurality of abutting surfaces, the distance between the abutting surfaces and the axis of the adjusting shaft is not completely the same, the other end of the adjusting shaft is provided with an adjusting driving structure which is used for controlling the rotation of the adjusting shaft, the adjusting wheel is located on the inner side of the upper die of the upper rotating disc, when the adjusting wheel rotates, the abutting surfaces abut against the pressing block, and the force of the wire pressing plate when pressing the wire harness on the outer side is controlled.

7. The wire harness terminal crimping device of claim 6, wherein, The crimping drive structure comprises a crimping motor, a cam is connected to the motor shaft of the crimping motor, the cam is connected to the motor shaft at the center of the circle, the cam is provided with a connecting rod outside the center of the circle through a rotating shaft, the other end of the connecting rod is connected with a moving rod through a rotating shaft, the moving rod is provided with a moving plate on the lower side, the moving plate is fixed to the rack through a vertical guide rail sliding block structure, the upper rotating disc is rotatably arranged on the side of the moving plate through a rotating shaft, the crimping motor rotates to control the rotation of the cam, and the moving plate moves up and down in the vertical guide rail direction.

8. The wire harness terminal crimping device of claim 7, wherein, Pressure detection structure is arranged between the moving rod and the moving plate, which is used for detecting the pressure when the upper die and the lower die are pressed.

9. The wire harness terminal crimping device according to any one of claims 2 to 5, characterized by The crimping lower die comprises a lower rotating disc, the lower die is provided with a plurality of lower rotating discs which are annularly distributed on the side of the lower rotating disc, and the side of the lower rotating disc is provided with a lower drive structure for controlling the rotation of the lower rotating disc.

10. The wire harness terminal crimping device of claim 9, wherein, The side of the upper rotating disc and / or the lower rotating disc is provided with a clamping groove, a through hole is arranged at the position of the clamping groove, the fixed plate of the upper die and / or the lower die is provided with a fixing piece penetrating through the through hole, the other side of the upper rotating disc and / or the lower rotating disc is provided with a fixing block for fixing the fixing piece at the position of the clamping groove and the upper rotating disc and / or the lower rotating disc, the fixing block comprises a fixing part fixed to the side of the upper rotating disc and / or the lower rotating disc, the fixing part is provided with a fixing hole in the radial direction, a fixing rod is arranged in the fixing hole, the fixing hole and / or the fixing rod are conical, the end of the fixing rod is fixed with a wedge-shaped block, the outer side of the fixing rod is sleeved with a fixing spring, and the wedge-shaped block is clamped with the fixing piece.

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