CN211315007U - Dead point adjusting crank connecting rod structure and terminal machine - Google Patents
Dead point adjusting crank connecting rod structure and terminal machine Download PDFInfo
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- CN211315007U CN211315007U CN201921367280.4U CN201921367280U CN211315007U CN 211315007 U CN211315007 U CN 211315007U CN 201921367280 U CN201921367280 U CN 201921367280U CN 211315007 U CN211315007 U CN 211315007U
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Abstract
The utility model relates to the field of transmission machinery, in particular to a crank connecting rod structure for dead point adjustment and a terminal machine, the crank connecting rod structure for dead point adjustment comprises an installation carrier, the installation carrier is rotationally connected with a rotating shaft, one end of the rotating shaft is provided with an eccentric part, one end of a first connecting rod is pivoted with the eccentric part, and a pivot for connecting the first connecting rod and the eccentric part is in an eccentric shape with the rotating shaft; a connecting shaft can rotatably penetrate through the other end of the first connecting rod, and a second connecting rod and a third connecting rod are further rotatably connected to the connecting shaft; the connecting shaft is connected with the first connecting rod, the second connecting rod and the third connecting rod to form a rotating fulcrum; the other end of the second connecting rod is pivoted with a sliding block, the sliding block is arranged in the guide sliding chute, and the other end of the third connecting rod is rotatably connected with an adjusting mechanism; the motor drives the rotating shaft to rotate, so that the first connecting rod pushes an included angle between the second connecting rod and the third connecting rod to be changed continuously, and the sliding block is pushed to slide along the guide sliding groove; the adjusting mechanism adjusts the position of the fulcrum to change the dead point position of the slide block.
Description
Technical Field
The utility model relates to a transmission machinery field, concretely relates to crank link structure and terminal machine that dead point was adjusted.
Background
Crank link mechanisms are widely applied to mechanical transmission mechanisms, and generally, a free end of a connecting rod is pivoted with a sliding block, and the sliding block is driven to move linearly through linkage of the connecting rod; a link mechanism such as a three-link; the ends of the three connecting rods are pivoted together; and the other end of one connecting rod is rotationally connected with the electric crankshaft or the eccentric part, the other connecting rod is rotationally connected with a fixed part, and the free end of the other connecting rod is rotationally connected with the sliding block and can push the sliding block to move linearly through the rotation of the crankshaft.
Chinese patent literature, patent publication numbers are: CN203983699U entitled terminal crimping machine, which discloses the above crank link structure; specifically disclosed is: the terminal crimping machine comprises a rack, a servo motor, a terminal fixed on the rack, a lead screw, a link mechanism, a slider and a punch, wherein the lead screw, the link mechanism, the slider and the punch are slidably arranged on the rack; the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, one ends of the first connecting rod, the second connecting rod and the third connecting rod are rotatably connected to the fixed seat through a rotating shaft, the other end of the first connecting rod is rotatably connected to the sliding seat, the other end of the second connecting rod is rotatably connected to the fixed seat, and the other end of the third connecting rod is rotatably connected to the sliding block; therefore, when the sliding seat slides relative to the linear sliding rail, the sliding seat can drive the first connecting rod, the second connecting rod and the third connecting rod to rotate relatively so as to drive the sliding block to slide along the sliding groove, and then the sliding block pushes the punch to punch towards the die mounting plate, so that the terminal crimping action is completed. However, the end part of the second connecting rod of the structure is pivoted on the fixed seat, so the bottom dead center position of the punch is always unchanged; in the practical application process, the upper die is arranged on the punch, and the upper die and the lower die are matched to finish the molding of the terminal on the electric wire through the up-and-down movement of the punch; because the die has errors inevitably in the production process or the application process, when the upper die and the lower die are closed and the terminal is punched, the terminal is not stamped in place, and therefore the height of the lower die needs to be adjusted, for example, a gasket is adopted to be lifted up, or the bottom of the lower die holder is ground down, so that the use is very inconvenient; and the bottom dead center position of the punch is inconvenient, so that the terminal punching die only can meet the requirement of one die height, and the use is single. In view of the above drawbacks, it is necessary to design a dead-center adjusting crank link structure and a terminal machine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: a crank connecting rod structure with dead point adjustment and a terminal machine are provided to solve the problems of inconvenient use and single application caused by dead point fixation of the prior connecting rod mechanism.
In order to solve the technical problem, the technical scheme of the utility model is that: the crank connecting rod structure with the dead point adjusted comprises an installation carrier, wherein a rotating shaft is rotatably connected to the installation carrier, an eccentric part is arranged at one end of the rotating shaft, one end of a first connecting rod is pivoted with the eccentric part, and a pivot for connecting the first connecting rod and the eccentric part is in an eccentric shape with the rotating shaft; a connecting shaft can rotatably penetrate through the other end of the first connecting rod, and a second connecting rod and a third connecting rod are further rotatably connected to the connecting shaft; the connecting shaft is connected with the first connecting rod, the second connecting rod and the third connecting rod to form a rotating fulcrum; the other end of the second connecting rod is pivoted with a sliding block, the sliding block is arranged in the guide sliding chute, and the other end of the third connecting rod is rotatably connected with an adjusting mechanism; the motor drives the rotating shaft to rotate, so that the first connecting rod pushes an included angle between the second connecting rod and the third connecting rod to be changed continuously, and the sliding block is pushed to slide along the guide sliding groove; the adjusting mechanism adjusts the position of the fulcrum to change the dead point position of the sliding block.
Further, the adjusting mechanism pushes the third connecting rod to move up and down, and the position of the fulcrum is adjusted.
Further, the adjustment mechanism includes:
the adjusting slide block is connected with the carrier in a sliding manner, an adjusting slide groove is arranged at the bottom of the adjusting slide block, and the adjusting slide groove and the slide track of the slide block form included angles of not 90 degrees and 0 degree;
the connecting block is connected in the adjusting sliding groove in a sliding mode, and the third connecting rod is pivoted with the connecting block;
and the pushing mechanism pushes the adjusting slide block to slide, so that the adjusting slide block pushes the connecting block to move up and down.
Furthermore, the cross section of the adjusting sliding groove is T-shaped, and the upper end of the connecting block extends into the adjusting sliding groove and can slide along the two limiting grooves of the adjusting sliding groove.
Furthermore, two limiting grooves in the adjusting sliding groove and the sliding track of the sliding block form included angles of not 90 degrees and 0 degree.
Furthermore, a second guide sliding groove is formed in the side wall of the mounting carrier, and the connecting block is connected with the second guide sliding groove in a sliding mode; the pushing mechanism pushes the adjusting slide block to horizontally slide, so that the connecting block slides along the second guide sliding groove. Further, the central line of the second guide chute and the central line of the guide chute are on the same straight line.
Furthermore, the pushing mechanism comprises a first adjusting screw rod which is rotatably connected with the mounting carrier, a screw hole matched with the adjusting screw rod is formed in one side of the adjusting slide block, and the first adjusting screw rod is rotated to drive the adjusting slide block to slide.
Further, the pushing mechanism comprises a second adjusting screw and an adjusting nut; the adjusting nut is sleeved on the second adjusting screw rod and is rotatably connected with an installation part extending outwards from the installation carrier, and the end part of the second adjusting screw rod is connected with the adjusting slide block; and rotating the adjusting nut to drive the second adjusting screw rod and the adjusting slide block to move.
Further, a worm wheel is arranged on the adjusting nut; a worm is meshed with the worm wheel and is rotationally connected with the mounting carrier; and rotating the worm to enable the worm to drive the worm wheel and the second adjusting screw to rotate.
Further, a servo motor arranged on the mounting carrier drives the worm to rotate.
Further, the tip of third connecting rod is equipped with the open slot, the tip of first connecting rod stretches into in the open slot, the second connecting rod includes two connecting plates, two the connecting plate distributes two lateral wall laminating of open slot, the connecting axle runs through two the connecting plate, formation the both sides board and the first connecting rod of open slot.
The terminal machine comprises a crank connecting rod structure for dead point adjustment, an upper die connecting seat and a lower die mounting seat; the mounting carrier comprises a base, a supporting side plate and a mounting plate; the two supporting side plates are fixedly arranged on two sides of the base, the mounting plate is fixedly arranged at the upper end between the two supporting side plates, and a die mounting area is formed between the bottom of the mounting plate and the base; the rotating shaft is rotatably connected with the mounting plate, and an adjusting slide block of the adjusting mechanism is slidably connected with the mounting plate; the upper die connecting seat is arranged at the bottom of the sliding block, and the lower die mounting seat is arranged at the top of the base.
Furthermore, two supporting blocks are arranged on the outer side of the mounting plate, and the two supporting blocks form the guide sliding chute; the upper end of the mounting plate is provided with a supporting part extending outwards and a third guide sliding groove recessed inwards, and the third guide sliding groove is positioned at the bottom end of the supporting part; the adjusting slide block is provided with a guide connecting part extending into the third guide sliding chute; one end of the limiting plate is fixedly connected with the supporting part, the other end of the limiting plate is fixedly connected with the two supporting blocks, one side of the adjusting slider is attached to the side wall of the mounting plate, and the other side of the adjusting slider is attached to the inner side of the limiting plate; the pushing mechanism pushes the adjusting slide block to slide along the third guide sliding groove.
Further, the pushing mechanism is an electric worm and gear mechanism; the bottom of one end of the supporting part is provided with an installation part; a worm wheel of the pushing mechanism is rotatably connected with the mounting part, a worm is rotatably connected with the mounting plate, one end of a screw rod is connected with the adjusting slide block, and the other end of the screw rod penetrates through a threaded hole of the worm wheel; the motor drives the worm to rotate.
Further, the lower die mounting seat includes:
the lower die base is arranged on the base;
the locking plate is arranged on the lower die base, the top of the locking plate is arranged in the accommodating cavity and used for accommodating the pressure sensor, one end of the top of the locking plate is provided with an upward extending step, and the height of the step is 0.1-0.2 mm;
the connecting plate is fixedly connected to the top surface of the step;
and the locking module is arranged on the connecting plate.
Furthermore, the front end of the supporting side plate is also provided with a clearance gap position, and a protective cover covers the clearance gap position; the outer side of the supporting side plate is pivoted with two supporting connecting rods, and the other ends of the supporting connecting rods are pivoted with the side wall of the protective cover; and a threading clearance hole is also formed in the protective cover, and the electric wire penetrates through the clearance hole and extends between the upper die and the lower die.
Compared with the prior art, the crank connecting rod structure with the dead point adjustment has the following beneficial effects:
1. the other end of the third connecting rod is rotatably connected with an adjusting mechanism, the adjusting mechanism is used for adjusting the position of a fulcrum formed by connecting the first connecting rod, the second connecting rod and the third connecting rod, so that the dead point position of the sliding block is adjusted, and when the connecting rod mechanism is actually applied, a structural part connected with the sliding block does not need to be modified or adjusted again, so that the operation is simplified.
2. When this crank link mechanism uses on the terminal machine, can realize adjusting the dead point position of terminal machine lower mould through adjustment mechanism, go up the mould and when the lower mould compound die has the error, directly through the position of adjustment mechanism adjustment mould, replace the tradition height of realizing adjusting the compound die through the height of adjustment lower mould for easy operation changes.
3. The dead point position of the sliding block is adjusted through the adjusting mechanism, so that the terminal machine die with different die closing heights can be used, and the application is wider.
Drawings
FIG. 1 is a schematic diagram of a dead point adjusted crank link structure of the present invention;
fig. 2 is a front view of the dead point adjusted crank link structure of the present invention;
fig. 3 is a perspective view of the dead point adjusting crank link structure of the present invention;
FIG. 4 is an internal structure view of the dead point adjusted crank link structure of the present invention;
fig. 5 is a structural diagram of the adjusting mechanism of the crank connecting rod structure for dead point adjustment according to the present invention;
FIG. 6 is a structural view of another embodiment of the adjustment mechanism of the dead-center adjusted crank link structure of the present invention;
fig. 7 is a structural diagram of the pushing mechanism of the dead point adjusting crank link structure of the present invention;
fig. 8 is a structural view of the terminal machine of the present invention;
fig. 9 is an internal structure view of the terminal machine of the present invention;
fig. 10 is a structural view of the adjusting mechanism of the terminal machine of the present invention;
FIG. 11 is a structural diagram of the terminal machine of the present invention with a protective cover
Fig. 12 is an exploded view of the lower die mounting base of the terminal machine of the present invention.
Detailed Description
The following detailed description will be further described in conjunction with the above-identified drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.
Referring to fig. 1 to 3, the dead point adjusting crank connecting rod structure includes an installation carrier 1, a rotating shaft 2 is rotatably connected to the installation carrier 1, an eccentric portion 20 is disposed at one end of the rotating shaft 2, one end of a first connecting rod 3 is pivotally connected to the eccentric portion 20, and a pivot connecting the first connecting rod 3 and the eccentric portion 20 is eccentric to the rotating shaft 2. A connecting shaft 4 can rotatably penetrate through the other end of the first connecting rod 3, and a second connecting rod 5 and a third connecting rod 6 are further rotatably connected to the connecting shaft 4; the connecting shaft 4 connects the first connecting rod 3, the second connecting rod 5 and the third connecting rod 6 to form a rotating fulcrum a. The other end pin joint of second connecting rod 5 has slider 7, slider 7 is located in direction spout 8. The motor 9 drives the rotating shaft 2 to rotate, so that the first connecting rod 3 is driven to do curvilinear motion, the included angle between the second connecting rod 5 and the third connecting rod 6 is continuously changed, and the sliding block 7 is pushed to slide along the guide sliding groove 8.
The other end of the third connecting rod 6 is rotatably connected with an adjusting mechanism 100; the adjustment mechanism 100 adjusts the position of the fulcrum a, and can change the dead point position of the slider 7 when the slider 7 is driven to slide.
The crank connecting rod structure with the dead point adjusted in the embodiment is applied to a punch press or a terminal machine, so that the position of the bottom dead point of an upper die can be adjusted, the adjustment is convenient when the upper die and a lower die are subjected to die closing deviation, and the die closing height can also be adjusted, so that the punch press or the terminal machine with the structure can be suitable for various different dies. The crank connecting rod structure adjusted at the dead point is applied to mechanical equipment needing to adjust the stroke of the sliding block 7, and the effective stroke of the sliding block can be directly adjusted through the adjusting mechanism 100.
Further, the adjusting mechanism 100 pushes the third link 6 to move up and down, so as to adjust the position of the fulcrum a.
Further, referring to fig. 4 to 6, the adjusting mechanism 100 includes: an adjusting slider 110, a connecting block 120 and a pushing mechanism 130. Wherein:
adjust slider 110, with carrier 1 sliding connection, the bottom of adjusting slider 110 is provided with adjusts spout 111, adjust spout 111 with slider 7 sliding track is non-90 and 0 contained angle. Furthermore, the sliding track of the adjusting chute 111 and the sliding block 7 forms an included angle of not 100 degrees to 140 degrees. Furthermore, the adjusting sliding groove 111 forms an angle of 105 ° with the sliding track of the sliding block 7.
The connecting block 120 is slidably connected in the adjusting chute 111, and the third connecting rod 6 is pivotally connected with the connecting block 120; specifically, an open groove is formed at the bottom of the connecting block 120, and the end of the third link 6 is pivoted in the open groove.
The pushing mechanism 130 pushes the adjusting slider 110 to slide, so that the adjusting slider 110 pushes the connecting block 120 to move up and down. Specifically, when the adjusting slider 110 slides, the adjusting chute 111 forms an included angle with the sliding track of the slider 7, so as to reach the height position of the adjusting connecting block 120 and the position of the adjusting fulcrum a, thereby adjusting the dead point position of the slider 7.
Further, referring to fig. 5 and 6, the cross section of the adjusting sliding groove 111 is "T" shaped, and the upper end of the connecting block 120 extends into the adjusting sliding groove 111 and can slide along the two limiting grooves 112 of the adjusting sliding groove 111.
Specifically, two side walls of the adjusting sliding groove 111 extend outwards to form the limiting groove 112, and the bottom wall of the limiting groove 112 and the sliding track of the sliding block form an included angle of not 90 degrees and 0 degree, preferably 105 degrees. The two sides of the connecting block 120 are provided with limiting bosses which are matched with the limiting grooves 112 in a sliding manner.
Further, a second guide sliding groove 10 is formed in the side wall of the mounting carrier 1, and the connecting block 120 is slidably connected with the second guide sliding groove 10; the pushing mechanism 130 pushes the adjusting slider 110 to horizontally slide, so that the connecting block 120 slides along the second guiding chute 10; the position of the third connecting rod 6 is adjusted, so that the height position of the fulcrum A is adjusted.
Further, the center line of the second guide chute 10 and the center line of the guide chute 8 are on the same straight line. In the present embodiment, the pushing force of the first link 3 acts directly and equally on the second link lever 5 and the third link lever 6; the second connecting rod 5 and the second connecting rod 6 can be balanced in force. And the reaction force of the second connecting rod 5 to the first connecting rod 3 is equal to the reaction force of the third connecting rod 6 to the first connecting rod 3, so that the reaction forces applied to the first connecting rod 3 are mutually offset, the interaction between the second connecting rod 5 and the third connecting rod 6 is achieved, under the condition that the forces output by the motors 9 are equal, the impact force generated by the sliding block 7 in the embodiment is maximized, and the uneven force applied to the first connecting rod 3 is avoided.
Furthermore, the bottom surface of the adjusting slider 110 is an inclined surface and is parallel to the adjusting sliding groove 111, the connecting block 120 is attached to the bottom surface of the adjusting slider 110, and the high point of the inclined surface is close to the fulcrum a, so that when the connecting block 120 is stressed, the stressed position of the adjusting slider 110 faces the position of the low point of the adjusting slider.
Further, referring to fig. 5, the pushing mechanism 130 includes a first adjusting screw 131 rotatably connected to the mounting carrier 1, a screw hole matched with the adjusting screw 131 is formed on one side of the adjusting slider 110, and the adjusting slider 110 is driven to slide by rotating the first adjusting screw 131.
Further, referring to fig. 6, the pushing mechanism 130 includes a second adjusting screw 132 and an adjusting nut 133; adjusting nut 133 overlap in on the second adjusting screw 132, adjusting nut 133 with an installation department (not shown in the drawing) that installation carrier 1 extended outward rotates to be connected, the tip of second adjusting screw 132 with adjusting slider 110 connects, and is concrete, one side of adjusting slider 110 is equipped with the connecting hole, the one end of second adjusting screw 132 stretches into in the connecting hole, a pin passes second connecting screw 132 makes it fix on adjusting slider 110. The adjusting nut 133 is rotated to drive the second adjusting screw 132 and the adjusting slider 110 to displace.
Further, referring to fig. 6 and 7, a worm wheel 134 is disposed on the adjusting nut 133; a worm 135 is engaged with the worm wheel 134 and is rotatably connected to the mounting carrier 1. Turning the worm 135 causes the worm 135 to rotate the worm gear 134 and the second adjustment screw 132.
Further, a servo motor 136 provided on the mount carrier 1 drives the worm 135 to rotate. In this embodiment, the fulcrum a is adjusted by driving the servo motor 136.
Furthermore, an open slot is formed in the end of the third connecting rod 6, the end of the first connecting rod 3 extends into the open slot, the second connecting rod 5 comprises two connecting plates, the two connecting plates are distributed on two outer side walls of the open slot and are attached to each other, and the connecting shaft 4 penetrates through the two connecting plates, two side plates forming the open slot and the first connecting rod 3; in the present embodiment, the center lines of the first link 3, the second link 5, and the third link 6 may be made to intersect at the fulcrum a; it is specifically understood that the three of the first link 3, the second link 5 and the third link 6 are stressed to intersect with the pivot point a, so that the first link 3, the second link 5 and the third link 6 are stressed to be balanced.
The terminal machine, specifically referring to fig. 1 to 9, includes the dead point adjusting crank link structure, and further includes an upper die connecting seat 200 and a lower die mounting seat 300. The mounting carrier 1 includes a base 11, support side plates 12, and a mounting plate 13. Two support curb plate 12 fixed mounting be in the both sides of base 11, mounting panel 13 fixed mounting is in two support the upper end between the curb plate 12, the bottom of mounting panel 13 with form mould installation district B between the base 11. The rotating shaft 2 is rotatably connected with the mounting plate 13, and the adjusting slider 110 of the adjusting mechanism 100 is slidably connected with the mounting plate 13; the upper die connecting seat 200 is arranged at the bottom of the sliding block 7, and the lower die mounting seat 300 is arranged at the top of the base 11. In the terminal machine of this embodiment, the upper die of the terminal is disposed at the bottom end of the upper die connecting seat 200, and the lower die is mounted on the lower die mounting seat 300. The dead point position of the slide 7 can be adjusted by the adjustment mechanism 100 to adjust the height of the mold clamping of the upper and lower molds, so that the height of the mold clamping does not need to be adjusted by modifying the height of the upper or lower mold. And the use of terminal molds suitable for different heights can be realized.
Further, referring to fig. 8 to 10, two support blocks 1300 are disposed outside the mounting plate 13, and the two support blocks 1300 form the guide chute 8; the upper end of the mounting plate 13 is provided with a supporting part 1301 extending outwards and a third guiding sliding chute 1302 recessed inwards, and the third guiding sliding chute 1302 is positioned at the bottom end of the supporting part 1301; the adjusting slider 110 is provided with a guide connecting part 112 extending into the third guide chute 1302; one end of a limiting plate 14 is fixedly connected with the supporting part 1301, the other end of the limiting plate is fixedly connected with the two supporting blocks 1300, one side of the adjusting slider 110 is attached to the side wall of the mounting plate 13, and the other side of the adjusting slider is attached to the inner side of the limiting plate 14; the pushing mechanism 130 pushes the adjusting slider 110 to slide along the third guiding chute 1302.
Further, referring to fig. 10, this embodiment is a specific embodiment of the pushing mechanism 130 in the terminal machine. The pushing mechanism 130 is an electric worm and gear mechanism; a mounting part 1303 is arranged at the bottom of one end of the supporting part 1301; a worm wheel of the pushing mechanism 130 is rotatably connected with the mounting part 1303, a worm is rotatably connected with the mounting plate 13, one end of a screw rod is connected with the adjusting slider 110, and the other end of the screw rod penetrates through a threaded hole of the worm wheel; the motor drives the worm to rotate.
Further, referring to fig. 12, the lower die mounting base 300 includes: a lower die holder 310, a locking plate 320, a connecting plate 330 and a locking die 340. Wherein:
and the lower die holder 310 is arranged on the base 11.
The locking plate 320 is arranged on the lower die holder 310, the top of the locking plate 320 is arranged in the accommodating cavity and used for accommodating the pressure sensor 350, one end of the top is provided with a step 321 extending upwards, and the height of the step 321 is 0.1-0.2 mm; preferably 0.15 mm.
A connection plate 330 fixedly connected to the top surface of the step 321;
and the locking module 340 is arranged on the connecting plate 330. In this embodiment, the lower mold is locked to the connecting plate 330 by the locking module 340, and the magnitude of the punching force can be accurately detected by the pressure sensor 350 when the terminal is molded at the end of the electric wire, thereby facilitating accurate adjustment of the magnitude of the punching force. And due to the step 321, a gap is formed between the connecting plate 330 and the lower die holder 310, and the gap can enable the pressure sensor 350 to be sufficiently contacted with the connecting plate 330.
Further, referring to fig. 11, the front end of the supporting side plate 12 is further provided with a clearance gap, and a protective cover 15 covers the clearance gap; two support connecting rods 16 are pivoted at the outer sides of the support side plates 12, and the other ends of the support connecting rods 16 are pivoted with the side walls of the protective covers 15; the protective cover 15 is also provided with a threading clearance hole position 16, and the electric wire passes through the clearance hole position 17 and extends between the upper die and the lower die. Therefore, the protective function can be realized for the operator when the terminal is punched.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (17)
1. The crank connecting rod structure with the dead point adjusted is characterized by comprising an installation carrier, wherein a rotating shaft is rotatably connected to the installation carrier, an eccentric part is arranged at one end of the rotating shaft, one end of a first connecting rod is pivoted with the eccentric part, and a pivot for connecting the first connecting rod and the eccentric part is eccentric to the rotating shaft; a connecting shaft can rotatably penetrate through the other end of the first connecting rod, and a second connecting rod and a third connecting rod are further rotatably connected to the connecting shaft; the connecting shaft is connected with the first connecting rod, the second connecting rod and the third connecting rod to form a rotating fulcrum; the other end of the second connecting rod is pivoted with a sliding block, the sliding block is arranged in the guide sliding chute, and the other end of the third connecting rod is rotatably connected with an adjusting mechanism; the motor drives the rotating shaft to rotate, so that the first connecting rod pushes an included angle between the second connecting rod and the third connecting rod to be changed continuously, and the sliding block is pushed to slide along the guide sliding groove; the adjusting mechanism adjusts the position of the fulcrum to change the dead point position of the sliding block.
2. The dead-center adjusted crank link structure of claim 1, wherein the adjustment mechanism pushes the third link to displace up and down to adjust the fulcrum position.
3. The dead-center adjusted crank link structure of claim 2, wherein the adjustment mechanism comprises:
the adjusting slide block is connected with the carrier in a sliding manner, an adjusting slide groove is arranged at the bottom of the adjusting slide block, and the adjusting slide groove and the slide track of the slide block form included angles of not 90 degrees and 0 degree;
the connecting block is connected in the adjusting sliding groove in a sliding mode, and the third connecting rod is pivoted with the connecting block;
and the pushing mechanism pushes the adjusting slide block to slide, so that the adjusting slide block pushes the connecting block to move up and down.
4. The dead-point-adjusted crank connecting rod structure according to claim 3, wherein the cross section of the adjusting chute is "T" shaped, and the upper end of the connecting block extends into the adjusting chute and can slide along two limiting grooves of the adjusting chute.
5. The dead-point adjusted crank connecting rod structure according to claim 4, wherein two limiting grooves in the adjusting sliding groove form included angles of non-90 degrees and 0 degrees with the sliding track of the sliding block.
6. A dead-center adjusted crank link structure as claimed in claim 3, wherein the side wall of the mounting carrier is provided with a second guide sliding groove, and the connecting block is slidably connected with the second guide sliding groove; the pushing mechanism pushes the adjusting slide block to horizontally slide, so that the connecting block slides along the second guide sliding groove.
7. The dead-center adjusted crank link structure of claim 6, wherein a centerline of the second guide runner is collinear with a centerline of the guide runner.
8. The dead-center-adjusted crank connecting rod structure according to claim 3, wherein the pushing mechanism comprises a first adjusting screw rotatably connected to the mounting carrier, one side of the adjusting slider is provided with a screw hole engaged with the adjusting screw, and the first adjusting screw is rotated to drive the adjusting slider to slide.
9. The dead-center adjusted crank link structure of claim 3, wherein the pushing mechanism comprises a second adjusting screw and an adjusting nut; the adjusting nut is sleeved on the second adjusting screw rod and is rotatably connected with an installation part extending outwards from the installation carrier, and the end part of the second adjusting screw rod is connected with the adjusting slide block; and rotating the adjusting nut to drive the second adjusting screw rod and the adjusting slide block to move.
10. The dead-center adjusted crank link structure of claim 9, wherein the adjusting nut is provided with a worm gear; a worm is meshed with the worm wheel and is rotationally connected with the mounting carrier; and rotating the worm to enable the worm to drive the worm wheel and the second adjusting screw to rotate.
11. A dead-center adjusted crank link structure as claimed in claim 10, wherein a servo motor provided on the mounting carrier drives the worm to rotate.
12. A crank connecting rod structure with a dead center adjusted according to any one of claims 3 to 11, wherein the end of the third connecting rod is provided with an open slot, the end of the first connecting rod extends into the open slot, the second connecting rod comprises two connecting plates, the two connecting plates are distributed on two outer side walls of the open slot and attached to each other, and the connecting shaft penetrates through the two connecting plates, the two side plates forming the open slot and the first connecting rod.
13. A terminal machine, comprising the dead point adjusted crank link structure of any one of claims 3 to 12, further comprising an upper die connecting seat and a lower die mounting seat; the mounting carrier comprises a base, a supporting side plate and a mounting plate; the two supporting side plates are fixedly arranged on two sides of the base, the mounting plate is fixedly arranged at the upper end between the two supporting side plates, and a die mounting area is formed between the bottom of the mounting plate and the base; the rotating shaft is rotatably connected with the mounting plate, and an adjusting slide block of the adjusting mechanism is slidably connected with the mounting plate; the upper die connecting seat is arranged at the bottom of the sliding block, and the lower die mounting seat is arranged at the top of the base.
14. The terminal machine of claim 13, wherein two support blocks are provided on the outside of said mounting plate, said support blocks forming said guide runners; the upper end of the mounting plate is provided with a supporting part extending outwards and a third guide sliding groove recessed inwards, and the third guide sliding groove is positioned at the bottom end of the supporting part; the adjusting slide block is provided with a guide connecting part extending into the third guide sliding chute; one end of the limiting plate is fixedly connected with the supporting part, the other end of the limiting plate is fixedly connected with the two supporting blocks, one side of the adjusting slider is attached to the side wall of the mounting plate, and the other side of the adjusting slider is attached to the inner side of the limiting plate; the pushing mechanism pushes the adjusting slide block to slide along the third guide sliding groove.
15. The terminal machine of claim 14, wherein the pushing mechanism is an electric worm gear mechanism; the bottom of one end of the supporting part is provided with an installation part; a worm wheel of the pushing mechanism is rotatably connected with the mounting part, a worm is rotatably connected with the mounting plate, one end of a screw rod is connected with the adjusting slide block, and the other end of the screw rod penetrates through a threaded hole of the worm wheel; the motor drives the worm to rotate.
16. The terminal machine of claim 13, wherein the lower die mounting seat comprises:
the lower die base is arranged on the base;
the locking plate is arranged on the lower die base, the top of the locking plate is arranged in the accommodating cavity and used for accommodating the pressure sensor, one end of the top of the locking plate is provided with an upward extending step, and the height of the step is 0.1-0.2 mm;
the connecting plate is fixedly connected to the top surface of the step;
and the locking module is arranged on the connecting plate.
17. The terminal machine according to claim 13, wherein the front end of the supporting side plate is further provided with a clearance gap position, and a protective cover covers the clearance gap position; the outer side of the supporting side plate is pivoted with two supporting connecting rods, and the other ends of the supporting connecting rods are pivoted with the side wall of the protective cover; and a threading clearance hole is also formed in the protective cover, and the electric wire penetrates through the clearance hole and extends between the upper die and the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921367280.4U CN211315007U (en) | 2019-08-21 | 2019-08-21 | Dead point adjusting crank connecting rod structure and terminal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN110594377A (en) * | 2019-08-21 | 2019-12-20 | 广东银钢智能科技有限公司 | Dead point adjusting crank connecting rod structure and terminal machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110594377A (en) * | 2019-08-21 | 2019-12-20 | 广东银钢智能科技有限公司 | Dead point adjusting crank connecting rod structure and terminal machine |
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