CN210692991U - Wire cutting and peeling mechanism of single-end terminal machine - Google Patents

Abstract

The utility model discloses a cut-off line peeling mechanism of single-end terminal machine relates to the terminal machine field, and it includes cutters and the take-up that is used for receiving the line, cutters includes knife rest, last blade holder and lower blade holder, go up the blade holder and slide with lower blade holder and connect on the knife rest, it is equipped with first rack towards the side of knife rest to go up the blade holder, the blade holder is equipped with the connecting plate towards the side of knife rest down, the connecting plate is located and sets up towards the blade holder, the side of connecting plate towards first rack is equipped with the second rack, be equipped with step motor on the knife rest, coaxial being fixed with the gear on step motor's the output shaft, the gear is located between first rack and the second rack and with the two meshing. The utility model discloses it is accurate to have the wire cutting of skinning, promotes terminal pressfitting quality, and then promotes the effect of connecting the reliability between the inside components and parts of brushless controller.

Description

Wire cutting and peeling mechanism of single-end terminal machine

Technical Field

The utility model belongs to the technical field of the technique of terminal machine and specifically relates to a wire cutting peeling mechanism of single-end terminal machine is related to.

Background

The controller is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of a main circuit or a control circuit and changing the resistance value in the circuit according to a preset sequence. The brushless controller adopts 16F72 produced by American microchip as a main control chip, the chip has moderate resource and excellent performance, and is manufactured by efficient and rapid PTD program control to form a three-phase low-voltage brushless direct current controller with excellent performance. The brushless controller generally uses a wire with a terminal for connection, the wire generally comprises a wire core and a paint coating for protecting the wire core, and a terminal machine is needed for removing the excess paint coating and pressing the terminal on the wire core.

The terminal machine refers to a machine used for processing electric wires, and the terminal machine can press a hardware head to an electric wire end and then conduct. The terminal that the terminal machine was beaten is usually for connecting more conveniently, need not go the welding just can be stable link together two wires, only need pull out when demolising can.

As shown in fig. 1 and 2, a single-end terminal machine in the prior art includes a base 1, a wire feeding mechanism 11, a wire cutting and peeling mechanism 12, a terminal feeding mechanism 13, and a terminal pressing mechanism 131 are sequentially disposed on the base 1, and the wire cutting and peeling mechanism 12 includes a cutter device 2 and a wire winding device 14; a material receiving area (not shown in the figure) is arranged below the wire collecting device 14, a wire feeding device 15 is arranged between the wire feeding mechanism 11 and the wire cutting and peeling mechanism 12, and a feeding plate 17 capable of rotating in a reciprocating mode is arranged below the wire feeding device 15; the wire feeding mechanism 11 conveys the wire to the wire feeding device 15, the wire feeding device 15 conveys the wire to the cutter device 2, the cutter device 2 cuts off redundant paint coats of the wire to expose the wire core, then the feeding plate 17 rotates to convey the wire with the exposed wire core to the terminal pressing mechanism 131, the terminal feeding mechanism 13 conveys the terminal to the lower part of the wire core, the terminal pressing mechanism 131 presses the terminal onto the wire, the pressed wire is returned to the cutter device 2 by the feeding plate 17 to be peeled and cut, and then the wire winding device 14 places the finished product in the material receiving area. The cutter device 2 comprises an upper cutter holder 22, a lower cutter holder 23 and a cutter frame 21, the cutter frame 21 is installed on the base 1, the upper cutter holder 22 and the lower cutter holder 23 respectively slide on the cutter frame 21, the upper cutter holder 22 and the lower cutter holder 23 are respectively driven by the telescopic cylinder 121 to move back and forth or move relatively, and when the upper cutter holder 22 and the lower cutter holder are intersected, the wire is peeled and cut off.

The adoption of the scheme has the following defects: go up blade holder and lower blade holder and respectively adopt a telescopic cylinder to drive, because of two telescopic cylinders drive respectively, including pneumatic drive's transmission speed easily receives the influence of atmospheric pressure, so the cutting position in space is difficult to keep unanimous all the time, the deviation appears easily, the influence is skinned and is cut off the wire, and then probably influences the pressfitting quality of terminal, causes the influence to the connection of brushless controller circuit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wire cutting peeling mechanism of single-end terminal machine has the wire and skins and cut off accurately, promotes terminal pressfitting quality, and then promotes the effect of connecting the reliability between the inside components and parts of brushless controller.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a wire cutting peeling mechanism of single-end terminal machine, includes cutters and the take-up that is used for receiving the line, cutters includes knife rest, last blade holder and lower blade holder, go up the blade holder and slide with lower blade holder and connect on the knife rest, it is equipped with first rack towards the side of knife rest to go up the blade holder, the blade holder is equipped with the connecting plate towards the side of knife rest down, the connecting plate is located and sets up towards last blade holder, the side of connecting plate towards first rack is equipped with the second rack, be equipped with step motor on the knife rest, coaxial being fixed with the gear on step motor's the output shaft, the gear be located between first rack and the second rack and with the two meshing.

By adopting the technical scheme, the rotation of the gear drives the first rack and the second rack to move in opposite directions, so that the upper tool apron and the lower tool apron are driven to simultaneously perform peeling and cutting motions, the cutting positions are always consistent due to the gear and rack transmission, the peeling and cutting effects on the wire are better, the terminal pressing quality is improved, and the connection reliability between internal components of the brushless controller is improved; meanwhile, the arrangement of the stepping motor enables the moving distance of the upper tool apron and the lower tool apron to be consistent each time.

The utility model discloses further set up to: the cutting knife and the wire stripping knife on the upper knife holder and the cutting knife and the wire stripping knife on the lower knife holder are staggered and abutted with each other, and the length of the wire stripping knife is smaller than that of the cutting knife.

By adopting the technical scheme, the wire stripping knife which is arranged oppositely can be used for simultaneously stripping at two ends, and the length of the cutting knife and the length of the wire stripping knife are distinguished, so that when the cutting knife cuts off a wire, the wire stripping knife cannot damage a wire core, and meanwhile, the cutting of the wire stripping knife on a painted foreskin can be guaranteed.

The utility model discloses further set up to: the section of the cutting edge of the cutting knife and the section of the cutting edge of the wire stripping knife are V-shaped.

Through adopting above-mentioned technical scheme, the cutting edge of V-arrangement can follow both sides cutting simultaneously, and cutting speed is faster, also can produce great cutting volume to the lacquer foreskin simultaneously, and the cutting direction of V-arrangement cutting edge is the slope cutting simultaneously, and the pressure that the cutting edge received is less relatively, just also is difficult to damage.

The utility model discloses further set up to: the cutting knife and the wire stripping knife both comprise a knife body and a knife head, and the knife body and the knife head are detachably connected.

Through adopting above-mentioned technical scheme, when the sword or blunt sword appear in the cutting edge, only need change the tool bit can, need not to change whole sword, reduction in production cost.

The utility model discloses further set up to: the side that the knife rest was kept away from to the blade has seted up the sliding tray, the one end that the cutting edge was kept away from to the tool bit is equipped with the sliding head with the sliding tray adaptation, the side that the knife rest was kept away from to the blade slides and has the baffle, baffle and sliding head butt, the baffle passes through bolt locking with the blade.

Through adopting above-mentioned technical scheme, slide from the one side of keeping away from the knife rest and install the tool bit, can not produce the interference with the knife rest, make things convenient for the workman to change, and adopt the baffle to restrict the tool bit, it is convenient simple, the workman's operation of being convenient for.

The utility model discloses further set up to: the sliding groove is conical towards the knife rest, and the large end is positioned at one end of the knife body far away from the knife rest.

Through adopting above-mentioned technical scheme, conical sliding head is bigger with the area of contact of sliding tray, combines also inseparabler, increases the stationarity of cutting edge cutting, and then promotes the cutting effect.

The utility model discloses further set up to: the wire take-up device comprises a first cylinder and a finger cylinder for clamping a wire, the first cylinder is installed on a knife rest, a fixing plate is connected to a piston rod of the first cylinder, the finger cylinder is installed on the fixing plate, the finger cylinder is located on one side, away from the wire feeding device, of the knife rest, and the material receiving area is located below the finger cylinder.

Through adopting above-mentioned technical scheme, the wire is cliied to the finger cylinder, and first cylinder drives the finger cylinder and removes to receive the material district top, and the finger cylinder loosens the wire again, places the wire in receiving the material district, convenient and fast.

The utility model discloses further set up to: the tool rest is provided with a travel switch, and the fixing plate is provided with a shifting block for shifting the travel switch.

By adopting the technical scheme, when the piston rod of the first cylinder extends out to drive the finger cylinder to move, the shifting head touches the travel switch, the travel switch sends out an electric signal, the air pressure in the first cylinder is increased, the extending speed of the piston rod is increased, and the wire feeding efficiency of the first cylinder is increased; when the piston rod retracts, the shifting head touches the travel switch again, the travel switch sends out an electric signal, the air pressure in the first air cylinder is reduced, and then the retraction speed of the piston rod of the first air cylinder is reduced.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the arrangement of the gear, the first rack, the second rack, the upper tool apron and the lower tool apron, the effects of peeling and cutting the wire are improved, the terminal pressing quality is further improved, and the connection reliability between components in the brushless controller is improved;

2. through the setting of blade and tool bit, when sword or blunt sword appear in the cutting edge, the quick replacement tool bit, and the tool bit installation is comparatively firm, and the cutting performance of cutting edge is also better.

Drawings

FIG. 1 is a schematic diagram of a single-ended handset in the prior art;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural diagram for embodying the whole in the present embodiment;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is an exploded view of the present embodiment showing the structure of the connection between the blade body and the blade head;

fig. 6 is a sectional view for embodying a connection structure between the pinion, the first rack, and the second rack in the present embodiment;

FIG. 7 is an enlarged view of portion C of FIG. 6;

fig. 8 is a schematic view for embodying the wire takeup device in the present embodiment;

fig. 9 is an enlarged view of a portion D in fig. 8.

In the figure, 1, a base; 11. a wire feeding mechanism; 12. a wire cutting and peeling mechanism; 121. a telescopic cylinder; 13. a terminal feeding mechanism; 131. a terminal pressing mechanism; 14. a take-up device; 141. a first cylinder; 142. a finger cylinder; 143. a fixing plate; 1431. a shifting block; 15. a wire feeding device; 16. a material receiving area; 17. a feeding plate; 2. a cutter device; 21. a tool holder; 211. a stepping motor; 212. a gear; 213. a travel switch; 22. an upper tool apron; 221. a first rack; 222. a cutting knife; 2221. a blade body; 2222. a cutter head; 2223. a sliding groove; 2224. a sliding head; 2225. a baffle plate; 223. wire stripping knife; 23. a lower tool apron; 231. a connecting plate; 232. a second rack; 233. a slide block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 3 and 4, for the wire cutting and peeling mechanism of the single-end terminal machine disclosed by the present invention, the wire cutting and peeling mechanism is installed on the single-end terminal machine, and comprises a cutter device 2 and a wire winding device 14 (as shown in fig. 8), the cutter device 2 is used for peeling and cutting a wire (not shown in the figure), and the wire winding device 14 is used for accommodating the wire; the cutter device 2 comprises a cutter frame 21, an upper cutter seat 22 and a lower cutter seat 23, wherein the cutter frame 21 is located at the downstream of the wire feeding device 15 and is installed on the base 1, a material receiving area 16 is arranged at the downstream of the cutter frame 21 and is used for placing a processed wire, the upper cutter seat 22 and the lower cutter seat 23 are connected with the cutter frame 21 in a sliding mode, the upper cutter seat 22 is located above the lower cutter seat 23, sliding blocks 233 (shown in fig. 7) are arranged on two sides of the upper cutter seat 22 and two sides of the lower cutter seat 23, sliding grooves (not shown in the figure) matched with the sliding blocks 233 are arranged on the cutter frame 21, the sliding grooves limit the movement of the sliding blocks 233 towards the upper cutter seat 22, the sliding blocks 233 can only vertically move, and the cutting of the wire is realized;

as shown in fig. 8 and 9, the wire rewinding device 14 includes a first air cylinder 141 and a finger air cylinder 142, the first air cylinder 141 is mounted on the tool holder 21, one end of a piston rod of the first air cylinder 141, which is far away from the first air cylinder 141, faces the upper tool apron 22 and is fixedly connected with a fixing plate 143, the finger air cylinder 142 is fixedly connected to the fixing plate 143 and is located on one side of the upper tool apron 22, which is far away from the wire feeding device 15, and the finger air cylinder 142 is also located above the material receiving area 16; the finger cylinder 142 clamps the wires from the upper tool apron 22 and the lower tool apron 23, the telescopic motion of the piston rod of the first cylinder 141 drives the finger cylinder 142 to reciprocate, the finger cylinder 142 is taken away from the upper tool apron 22 and the lower tool apron 23, and the wires are conveniently placed in the material receiving area 16 by the finger cylinder 142.

As shown in fig. 6 and 7, a first rack 221 is fixedly connected to a side surface of the upper tool apron 22 facing the tool rest 21, a connecting plate 231 is fixedly connected to a side surface of the lower tool apron 23 facing the tool rest 21, the connecting plate 231 is arranged facing the upper tool apron 22, and a second rack 232 is arranged on a side of the connecting plate 231 facing the first rack 221; the tool rest 21 is also provided with a stepping motor 211, an output shaft of the stepping motor 211 is coaxially fixed with a gear 212, and the gear 212 is positioned between and meshed with a first rack 221 and a second rack 232; the gear 212 rotates forward or backward to drive the first rack 221 and the second rack 232 to move relatively or back to back simultaneously, so as to realize the cutting action of the upper tool apron 22 and the lower tool apron 23, and meanwhile, because the rotation angle of the stepping motor 211 is fixed, the moving distance of the upper tool apron 22 and the lower tool apron 23 each time is also fixed, and the relative or back to back movement of the upper tool apron 22 and the lower tool apron 23 is realized by the forward rotation and the reverse rotation of the stepping motor 211.

As shown in fig. 3 and 4, the upper tool apron 22 and the lower tool apron 23 are respectively provided with a cutting knife 222 and a stripping knife 223, the cutting knife 222 is respectively located in the middle of the upper tool apron 22 and the lower tool apron 23, the stripping knife 223 is respectively oppositely arranged at two ends of the upper tool apron 22 and the lower tool apron 23, the cutting knife 222 and the stripping knife 223 on the upper tool apron 22 and the cutting knife 222 and the stripping knife 223 on the lower tool apron 23 are respectively staggered and abutted, the wire is located between the upper tool apron 22 and the lower tool apron 23 and is cut by the cutting knife 222 and the stripping knife 223, the upper tool apron 22 and the lower tool apron 23 are kept still after the wire is cut by the cutting knife 222, the stripping knife 223 is placed in the wire to cut off the painted sheath, and at this time, the wire feeding device 15 and the finger cylinder 142 simultaneously pull the wire at two ends to separate the wire core (not shown) from the excess painted sheath (not shown), so as to cut off and strip the wire.

As shown in fig. 4, the length of the cutting knife 222 is longer than that of the wire stripping knife 223, and the difference between the lengths of the two is not less than half of the diameter of the wire core, such an arrangement enables the cutting knife 222 to cut the wire, and at the same time, the wire stripping knife 223 only cuts the painted jacket without cutting the wire core, the larger the difference between the lengths of the wire stripping knife 223 and the cutting knife 222 is, the easier the wire stripping is, but the larger the difference is, the cutting of the wire is also affected, so the difference between the lengths of the wire stripping knife 223 and the cutting knife 222 is generally less than the diameter of the wire core; in order to increase the cutting amount of the painted wrappers, the section shape of the blade of the wire stripping knife 223 is set to be V-shaped, and compared with the linear blade, the blade on two sides of the V-shaped blade can cut the painted wrappers at the same time, so that the cutting amount of the painted wrappers on two sides is larger, and the wire stripping is easier; the shape of the section of the cutting edge of the cutting knife 222 is also V-shaped, the two sides of the V-shaped cutting edge cut simultaneously, the cutting efficiency is high, the cutting direction is oblique cutting, and the damage to the cutting edge is small.

As shown in fig. 5, each of the cutting knife 222 and the wire stripping knife 223 includes a knife body 2221 and a knife head 2222, a sliding groove 2223 is formed in a side surface of the knife body 2221 away from the knife rest 21, a sliding head 2224 adapted to the sliding groove 2223 is arranged at one end of the knife head 2222 away from the knife edge, the sliding groove 2223 is tapered along a sliding direction of the sliding head 2224, that is, the sliding groove 2223 is tapered, and the tapered sliding head 2224 is more tightly fitted to the sliding groove 2223; in order to fix the cutting head 2222 to the tool body 2221, a stop plate 2225 is slidably moved on the side surface of the tool body 2221 away from the tool holder 21, the stop plate 2225 abuts against the side surface of the sliding head 2224 away from the tool holder 21, and the stop plate 2225 is fastened to the tool body 2221 by bolts.

As shown in fig. 8 and 9, the tool post 21 is further provided with a travel switch 213, and the bottom surface of the fixing plate 143 is provided with a dial 1431 for toggling the travel switch 213; initially, the finger cylinder 142 clamps the wire to perform wire stripping action, the extension speed of the piston rod of the first cylinder 141 is slow, after the shifting head 1431 touches the travel switch 213, the travel switch 213 sends out an electric signal, the air pressure of the first cylinder 141 is increased, the extension speed and the retraction speed of the piston rod of the first cylinder 141 are both fast, the speed of driving the finger cylinder 142 to convey the wire to the material receiving area 16 is increased, the conveying time is saved, and the working efficiency is further improved; when the piston rod of the first cylinder 141 is retracted, the dial 1431 touches the stroke switch 213 again, and the retraction and extension speed of the piston rod of the first cylinder 141 becomes slow, and thus it reciprocates.

The implementation process of the embodiment is as follows: the wire feeding device 15 feeds the wire between the upper tool apron 22 and the lower tool apron 23, the stepping motor 211 is started to drive the gear 212 to rotate, the gear 212 drives the first gear 212 and the second gear 212 to move relatively, the upper tool apron 22 and the lower tool apron 23 are driven to approach, the middle part of the wire is cut by the cutting knife 222, the wire is divided into two sections, and the wire stripping knives 223 at two ends cut the wire to cut the paint coat but not to touch the wire core; the feeding plate 17 rotates to drive the wire feeding device 15 to feed a section of wire far away from the finger cylinder 142 into the terminal pressing mechanism, the wire core is pulled out while the feeding plate 17 rotates, the redundant paint coating is blocked and stripped by the wire stripping knife 223, meanwhile, the finger cylinder 142 clamps a section of wire far away from the wire feeding device 15, a piston rod of the first cylinder 141 drives the finger cylinder 142 to move, the wire core is pulled out, and wire stripping is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a wire cutting peeling mechanism of single-end terminal machine, includes cutters (2) and take-up (14) that are used for receiving the line, cutters (2) include knife rest (21), go up blade holder (22) and lower blade holder (23) and slide and connect on knife rest (21), its characterized in that: go up blade holder (22) and be equipped with first rack (221) towards the side of blade holder (21), lower blade holder (23) is equipped with connecting plate (231) towards the side of blade holder (21), connecting plate (231) set up towards last blade holder (22), the side of connecting plate (231) towards first rack (221) is equipped with second rack (232), be equipped with step motor (211) on blade holder (21), coaxial gear (212) that is fixed with on the output shaft of step motor (211), gear (212) are located between first rack (221) and second rack (232) and mesh with the two.

2. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 1, characterized in that: the cutting knife (222) and the wire stripping knife (223) are arranged on the upper knife holder (22) and the lower knife holder (23), the cutting knife (222) is located in the middle of the upper knife holder (22) and the lower knife holder (23), the wire stripping knife (223) is arranged at two ends of the upper knife holder (22) and the lower knife holder (23) respectively, the cutting knife (222) and the wire stripping knife (223) on the upper knife holder (22) are staggered and abutted with the cutting knife (222) and the wire stripping knife (223) on the lower knife holder (23), and the length of the wire stripping knife (223) is smaller than that of the cutting knife (222).

3. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 2, characterized in that: the section of the cutting edge of the cutting knife (222) and the section of the cutting edge of the wire stripping knife (223) are V-shaped.

4. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 3, characterized in that: the cutting knife (222) and the wire stripping knife (223) both comprise a knife body (2221) and a knife head (2222), and the knife body (2221) is detachably connected with the knife head (2222).

5. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 4, characterized in that: sliding tray (2223) have been seted up to the side of blade (2221) keeping away from knife rest (21), one end that blade (2222) kept away from the cutting edge is equipped with slider (2224) with sliding tray (2223) adaptation, the side that blade (2221) kept away from knife rest (21) slides has baffle (2225), baffle (2225) and slider (2224) butt, baffle (2225) pass through bolt locking with blade (2221).

6. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 5, characterized in that: the sliding groove (2223) is tapered towards the tool rest (21), and the large end of the sliding groove is located at one end, far away from the tool rest (21), of the tool body (2221).

7. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 1, characterized in that: the wire take-up device (14) comprises a first air cylinder (141) and a finger air cylinder (142) for clamping a wire, wherein the first air cylinder (141) is installed on a tool rest (21), a fixing plate (143) is connected to a piston rod of the first air cylinder (141), the finger air cylinder (142) is installed on the fixing plate (143), the finger air cylinder (142) is located on one side, away from a wire feeding device (15), of the tool rest (21), a material receiving area (16) is arranged on the downstream of the tool rest (21), and the material receiving area (16) is located below the finger air cylinder (142).

8. The wire cutting and peeling mechanism of the single-end terminal machine according to claim 7, characterized in that: the tool rest (21) is provided with a travel switch (213), and the fixing plate (143) is provided with a shifting block (1431) for shifting the travel switch (213).

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