CN114247843B - Full-automatic rodless rivet gun - Google Patents
Full-automatic rodless rivet gun Download PDFInfo
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- CN114247843B CN114247843B CN202111669831.4A CN202111669831A CN114247843B CN 114247843 B CN114247843 B CN 114247843B CN 202111669831 A CN202111669831 A CN 202111669831A CN 114247843 B CN114247843 B CN 114247843B
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- clamping
- pull rod
- rodless
- rivet cap
- rivet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
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- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The rivet with the traditional structure comprises a rivet body and a pull rod, wherein the pull rod almost occupies 90% of the weight of the whole rivet, and the riveted pull rod is waste, so that a large amount of materials are wasted invisibly. The invention discloses a full-automatic rodless rivet gun, which comprises: rivet cap clamping mechanism, rivet cap ejecting mechanism, pull rod embrace and press from both sides mechanism, pull rod balance mechanism, rifle mouth stabilizing mean. The full-automatic rodless blind rivet gun is matched with a rodless blind rivet cap for use, and the rodless blind rivet cap is riveted on an object.
Description
Technical Field
The invention relates to the technical field of blind rivet guns, in particular to a full-automatic rodless blind rivet gun.
Background
As shown in fig. 1, a rivet 10 of a conventional structure includes a rivet body 11 and a pull rod 12. After the rivet 10 is riveted to an object using a rivet gun, the rivet body 11 stays on the object, and the draw bar 12 is drawn out and separated from the rivet body 11. The drawn-out draw bar 12 is waste and cannot be reused. In the conventional rivet 10, the pull rod 12 occupies almost 90% of the weight of the rivet, and the riveted pull rod 12 is discarded, which would result in a large amount of material being wasted.
For this reason, a rodless rivet cap 20 (shown in fig. 2) is specially designed to replace the conventional rivet 10, so that the waste of materials is reduced, and the cost is saved. As shown in FIG. 3, the rodless tack cap 20 includes a blocking portion 21, a filling portion 22, and an everting portion 23 connected in this order. The blocking portion 21, the filling portion 22 and the outward turned portion 23 are all of a cylindrical structure, and central axes of the blocking portion 21, the filling portion 22 and the outward turned portion 23 are on the same straight line.
In order to rivet the rodless rivet cap 20 to an object, a fully automatic rodless rivet gun needs to be designed in a matching manner, and the fully automatic rodless rivet gun is used in combination with the rodless rivet cap 20.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a full-automatic rodless blind rivet gun which is matched with a rodless blind rivet cap for use and realizes the riveting of the rodless blind rivet cap on an object.
The purpose of the invention is realized by the following technical scheme:
a fully automatic rodless blind rivet gun comprising: the rivet cap clamping mechanism, the rivet cap pushing mechanism, the pull rod clamping mechanism, the pull rod balancing mechanism and the gun nozzle stabilizing mechanism are arranged on the gun nozzle;
rivet cap clamping machine constructs includes: the device comprises a fixed seat with a rivet cap feeding channel and a movable clamp rotationally arranged on the fixed seat through an elastic resetting piece;
the rivet cap push-out mechanism comprises: the push rod and the driver are in driving connection with the push rod;
the pull rod clamping mechanism comprises: the clamping device comprises a clamping component, a clamping auxiliary block, an opening auxiliary block and a power source; embrace and press from both sides subassembly includes: the telescopic movable block, the left clamping jaw and the right clamping jaw; the left clamping jaw is provided with a left rotating end and a left tensioning end, and the right clamping jaw is provided with a right rotating end and a right tensioning end; the left rotating end and the right rotating end are rotatably arranged on the telescopic movable block; an opening and clamping movable space is formed between the clamping auxiliary block and the opening auxiliary block, and the left opening and clamping end and the right opening and clamping end move in the opening and clamping movable space; the power source is in driving connection with the telescopic movable block;
the pull rod balancing mechanism comprises: the clamping device comprises a base, a left clamping block, a right clamping block, a clamping elastic component and a pull rod; the base is provided with a pull rod through hole, the pull rod penetrates through the pull rod through hole, and the clamping elastic assembly applies elastic force for clamping the pull rod to the left clamping block and the right clamping block;
the muzzle stabilizing mechanism includes: the gun nozzle comprises a gun nozzle body, a left clamping nozzle, a right clamping nozzle and a clamping elastic piece; the left side clamping mouth and the right side clamping mouth are rotatably arranged on the gun nozzle body, and the clamping elastic piece is formed by applying elastic force for clamping the left side clamping mouth and the right side clamping mouth mutually.
In one of the embodiments, the first and second electrodes are,
a blind rivet cap feeding end and a blind rivet cap locating end are respectively formed at two ends of the blind rivet cap feeding channel, and a convex ring limiting groove is formed in the blind rivet cap feeding channel;
the movable clamp is provided with a main body support serial groove;
the fixed seat is provided with a push rod through hole which is communicated with the rivet cap feeding channel;
the push rod penetrates through the push rod through hole.
In one of the embodiments, the first and second electrodes are,
the left side is opened and is pressed from both sides and hold and press from both sides the groove to be seted up left side pull rod on holding, the right side is opened and is pressed from both sides and hold and press from both sides the groove to be seted up right side pull rod on holding.
In one of the embodiments, the first and second electrodes are,
the clamping auxiliary block is provided with a left clamping auxiliary surface and a right clamping auxiliary surface, the left clamping end is provided with a left clamping stress surface matched with the left clamping auxiliary surface, and the right clamping end is provided with a right clamping stress surface matched with the right clamping auxiliary surface;
the opening auxiliary block is provided with a left opening auxiliary surface and a right opening auxiliary surface, the left opening clamping end is provided with a left opening stress surface matched with the left opening auxiliary surface, and the right opening clamping end is provided with a right opening stress surface matched with the right opening auxiliary surface.
In one of the embodiments, the first and second electrodes are,
the clamping spring assembly comprises: a left elastic member and a right elastic member;
the base is provided with a left side accommodating groove and a right side accommodating groove which are respectively positioned at two sides of the axis of the pull rod through hole, the left side accommodating groove is communicated with the pull rod through hole, and the right side accommodating groove is communicated with the pull rod through hole;
the left clamping block is movably accommodated in the left accommodating groove in a reciprocating manner, and the right clamping block is movably accommodated in the right accommodating groove in a reciprocating manner;
the left clamping block is provided with a left clamping end, and the right clamping block is provided with a right clamping end;
the left elastic piece is used for providing elastic force for the left clamping block so that the left clamping end of the left clamping block approaches to the pull rod through hole direction;
the right elastic piece is used for providing elastic force for the right clamping block so that the right clamping end of the right clamping block approaches to the pull rod through hole;
the left clamping end is provided with a left clamping groove of the pull rod, and the right clamping end is provided with a right clamping groove of the pull rod.
In one embodiment, the reciprocating direction of the left clamping block and the axial direction of the pull rod through hole form a left included angle α 1, and the reciprocating direction of the right clamping block and the axial direction of the pull rod through hole form a right included angle α 2;
wherein 0< α 1<90 °, 0< α 2<90 °.
In one of the embodiments, the first and second electrodes are,
the left side is fixed on the left side and is equipped with left side tooth spare, the right side is fixed on the right side and is equipped with right side tooth spare, left side tooth spare with right side tooth spare intermeshing.
In one embodiment, the left side clamping mouth is provided with a left side pull rod clamping groove, and the right side clamping mouth is provided with a right side pull rod clamping groove.
Two ends of the left pull rod clamping groove form a left pull rod reset inclined plane and a left blind rivet cap boosting inclined plane respectively;
and the two ends of the right pull rod clamping groove form a right pull rod reset inclined plane and a right rivet cap boosting inclined plane respectively.
In one embodiment, the fully automatic rodless nail gun further comprises a nail-pulling cap feeding mechanism;
draw nail cap feed mechanism includes: the rivet cap discharging machine comprises a rivet cap discharging machine, a rivet cap pushing device, a rivet cap positioning jig and an air blowing device;
the rivet cap positioning jig is provided with a rivet cap accommodating cavity, and the rivet cap accommodating cavity is provided with a feeding hole, a discharging hole and a blowing hole;
the rivet cap discharging machine is used for conveying the rodless rivet caps to the feeding port;
the rivet cap pushing device is used for pushing the rodless rivet cap from the feeding port to the discharging port;
the air blowing device is communicated with the cavity of the rivet cap accommodating cavity through the air blowing port;
the rivet cap feeding mechanism further comprises a rivet cap feeding pipe, one end of the rivet cap feeding pipe is inserted into the discharge hole, and the other end of the rivet cap feeding pipe is inserted into the rivet cap feeding channel of the fixed seat;
the cross section of the inner cavity of the feeding pipe of the rivet cap is of a square structure.
In one embodiment, the push rod is provided with a negative pressure cavity, and the negative pressure cavity is communicated with a negative pressure generator.
The full-automatic rodless blind rivet gun is matched with a rodless blind rivet cap to be used, and the rodless blind rivet cap is riveted on an object.
Drawings
FIG. 1 is a structural view of a rivet of conventional construction;
FIG. 2 is a block diagram of a rodless tack cap according to the present invention;
FIG. 3 is a cross-sectional view of a rodless tack cap of the type shown in FIG. 2;
FIG. 4 is a block diagram of a fully automatic rodless blind rivet gun in accordance with one embodiment of the present invention;
FIG. 5 is a fragmentary view of the fully automatic rodless blind rivet gun shown in FIG. 4;
FIG. 6 is a block diagram of the blind rivet cap clamping mechanism shown in FIG. 5;
FIG. 7 is a partial view of the blind rivet cap fixture shown in FIG. 6;
FIG. 8 is a structural view of the fixing base shown in FIG. 7;
FIG. 9 is a block diagram of the removable clip shown in FIG. 7;
FIG. 10 is a block diagram of the drawbar clamping mechanism shown in FIG. 5;
FIG. 11 is an exploded view (one) of the drawbar clamping mechanism shown in FIG. 10;
FIG. 12 is an exploded view (two) of the drawbar clamping mechanism shown in FIG. 10;
FIG. 13 is an enlarged view of FIG. 12 at A;
FIG. 14 is a block diagram of the drawbar balancing mechanism shown in FIG. 5;
FIG. 15 is an exploded view of the drawbar balancing mechanism shown in FIG. 14;
FIG. 16 is a plan view of the drawbar balancing mechanism shown in FIG. 14;
FIG. 17 is a block diagram of the muzzle stabilizing mechanism shown in FIG. 5;
FIG. 18 is an exploded view of the muzzle stabilization mechanism of FIG. 17;
FIG. 19 is a plan view of the muzzle stabilization mechanism of FIG. 18;
FIG. 20 is a block diagram of the blind rivet cap loading mechanism shown in FIG. 4;
FIG. 21 is a first view of the rivet cap positioning fixture shown in FIG. 20;
FIG. 22 is a second view showing the structure of the blind rivet head positioning jig shown in FIG. 20;
FIG. 23 is a block diagram of the feed tube of the nut of FIG. 20;
FIG. 24 is a cross-sectional view of the feed tube of the nut of FIG. 23;
FIG. 25 is a schematic view of the blind rivet cap clamping mechanism cooperating with the blind rivet cap ejection mechanism to eject the rodless blind rivet cap out by the push rod and serially connected to the pull rod;
FIG. 26 is a schematic view of the pull rod clamping mechanism cooperating with the pull rod balancing mechanism to clamp the pull rod;
FIG. 27 is a schematic view of the muzzle stabilizing mechanism clamping the pull rod and the rodless nail cap;
FIG. 28 is a schematic view of the use of a pull rod to rivet a rodless rivet head to two objects.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 4 and 5, a fully automatic rod-less blind rivet gun 30 includes: the rivet cap clamping mechanism 100, the rivet cap push-out mechanism 200, the pull rod clamping mechanism 300, the pull rod balance mechanism 400 and the gun nozzle stabilizing mechanism 500.
As shown in fig. 6, 7 and 8, the blind rivet cap clamping mechanism 100 includes: the fixing seat 110 is provided with a rivet cap feeding channel 101, and the movable clamp 120 is rotatably arranged on the fixing seat 110 through an elastic resetting piece. A clamping space is formed between the fixed seat 110 and the movable clamp 120, and the clamping space is used for clamping the rodless rivet cap 20. Through setting up the elasticity piece that resets, can be so that the activity after the rotation presss from both sides 120 automatic re-setting when losing exogenic action, for example, the elasticity piece that resets can adopt prior art's cylindrical spring, if again, the elasticity piece that resets can also adopt prior art's torsional spring, with torsional spring and activity press from both sides 120 rotation axis connection can.
As shown in fig. 4, the blind rivet cap ejection mechanism 200 includes: a push rod 210 and a driver 220 in driving connection with the push rod 210. Among them, the actuator 220 preferably adopts a cylinder driving structure. The driver 220 drives the push rod 210 to perform telescopic motion, the push rod 210 is used for pushing out the rodless rivet cap 20 in the clamping space, the movable clamp 120 is pushed by the rodless rivet cap 20 to rotate (as shown in fig. 25), the movable clamp 120 after rotating forms an escape space for the rodless rivet cap 20, and the rodless rivet cap 20 can be smoothly separated from the clamping space under the action of the push rod 210. When the rodless rivet cap 20 is pushed out, the movable clip 120 is reset under the action of the elastic reset piece 102, and the elastic reset piece 102 can adopt a cylindrical spring or a torsion spring.
As shown in fig. 10 and 11, the pull rod clamping mechanism 300 includes: a clamping assembly 310, a clamping auxiliary block 320, an opening auxiliary block 330 and a power source 340 (shown in figure 4). As shown in fig. 12, the clamping assembly 310 includes: a telescopic movable block 311, a left clamping jaw 312 and a right clamping jaw 313. The left jaw 312 has a left pivoted end 3121 and a left flared end 3122, the right jaw 313 has a right pivoted end 3131 and a right flared end 3132; the left rotating end 3121 and the right rotating end 3131 are rotatably disposed on the telescopic movable block 311; an opening-clamping movable space 350 (shown in fig. 10) is formed between the clamping auxiliary block 320 and the opening auxiliary block 330, and the left opening-clamping end 3122 and the right opening-clamping end 3132 are movable in the opening-clamping movable space 350; the power source 340 is in driving connection with the telescopic movable block 311. The power source 340 preferably employs a cylinder structure. The power source 340 drives the left clamping jaw 312 and the right clamping jaw 313 through the telescopic movable block 311, and the left clamping jaw 312 and the right clamping jaw 313 can be opened or clamped because the left clamping end 3122 and the right clamping end 3132 reciprocate in the clamping movable space 350.
As shown in fig. 14 and 15, the tie bar balancing mechanism 400 includes: a base 410, a left clamping block 420, a right clamping block 430, a clamping elastic component and a pull rod 450; the base 410 is provided with a pull rod through hole 411, the pull rod 450 is arranged through the pull rod through hole 411, and the clamping elastic component applies elastic force for clamping the pull rod 450 to the left clamping block 420 and the right clamping block 430. The left and right clamping blocks 420 and 430 clamp the draw bar through the draw bar 450 in the hole 411 by the elastic force applied by the clamping elastic assembly, and the draw bar 450 can reciprocate in the axial direction thereof.
As shown in fig. 17 and 18, the muzzle stabilizing mechanism 500 includes: gun nozzle body 510, left side clamping nozzle 520, right side clamping nozzle 530, clamping elastic member 540. The left and right nipples 520 and 530 are rotatably installed on the gun nozzle body 510, and the clamping elastic member 540 applies an elastic force for clamping the left and right nipples 520 and 530 to each other.
The operation principle of the fully automatic rodless blind rivet gun 30 having the above-described structure will be described below:
as shown in fig. 25, a rodless rivet cap 20 is fed into the clamping space between the fixed base 110 and the movable clamp 120 through the rivet cap feeding channel 101;
the pull rod 450 has a head portion 451 and a tail portion 452 (shown in FIG. 14), the tail portion 452 of the pull rod 450 penetrating into the rodless tack cap 20 (shown in FIG. 25);
as shown in fig. 25, the driver 220 drives the push rod 210 to extend, the push rod 210 pushes out the rodless rivet cap 20 in the clamping space, and the rodless rivet cap 20 moves towards the head 451 direction from the tail portion 452 of the pull rod 450;
as shown in fig. 26, during the movement of the rodless nut 20 from the tail portion 452 of the pull rod 450 to the head portion 451, the rodless nut 20 and the push rod 210 pass through the left clamping block 420 and the right clamping block 430 in the pull rod balancing mechanism 400 (the left clamping block 420 and the right clamping block 430 are retracted from the rodless nut 20 and the push rod 210);
the push rod 210 continues to push the rodless tack cap 20 so that the rodless tack cap 20 reaches the head 451 of the draw rod 450;
as shown in fig. 27, due to the protruding structure of the head 451 of the pull rod 450 blocking the rodless nut 20, the rodless nut 20 and the pull rod 450 move together under the pushing force of the push rod 210, so that the head 451 of the drawrod 450 and the rodless nut 20 jointly pass through the left-side jaw 520 and the right-side jaw 530 to reach the outside of the gun mouth;
after the rodless rivet cap 20 and the head 451 of the pull rod 450 pass through the left clamping jaw 520 and the right clamping jaw 530, the driver 220 drives the push rod 210 to contract and reset (to prepare for the next pushing), and the next rodless rivet cap 20 can be clamped in the clamping space between the fixed seat 110 and the movable clamp 120 again;
as shown in fig. 28, when the rodless nut 20 and the head 451 of the draw bar 450 pass through the left-hand nozzle 520 and the right-hand nozzle 530 to the outside of the muzzle, the head 451 of the draw bar 450 passes through the through holes of the two objects 40, and the rodless nut 20 stays in the through holes of the two objects 40;
at this time, the pull rod clamping mechanism 300 starts to act, and the power source 340 drives the left clamping jaw 312 and the right clamping jaw 313 through the telescopic moving block 311, so that the left clamping end 3122 and the right clamping end 3132 move to one side in the clamping moving space 350, and thus, the left clamping end 3122 and the right clamping end 3132 can clamp and drag the rod body of the pull rod 450 (refer to fig. 26);
as shown in fig. 28, the rod body of the pull rod 450 is forced to move in the opposite direction, the head portion 451 of the pull rod 450 presses the rodless rivet cap 20, so that the rodless rivet cap 20 deforms, when the head portion 451 of the pull rod 450 is completely extracted from the rodless rivet cap 20, the rodless rivet cap 20 stays on the two objects 40, and the two objects 40 are riveted together, and the head portion 451 of the pull rod 450 passes through the left clamping nozzle 520 and the right clamping nozzle 530 again and returns to the interior of the gun nozzle during the movement in the opposite direction;
during the movement of the head 451 of the pull rod 450 in the opposite direction, since the next rodless nut 20 is already in place, the tail 452 of the pull rod 450 can be threaded into the rodless nut 20 again, ready for the next action (see fig. 25);
the power source 340 no longer applies force to the telescopic moving block 311, and the left clamping end 3122 and the right clamping end 3132 move to the other side in the clamping space 350, so that the left clamping jaw 312 and the right clamping jaw 313 are in the open state again, and are ready for the next clamping (see fig. 26).
The following describes a specific structure of the nut chuck 100:
as shown in fig. 8, a blind rivet cap feeding end 101a and a blind rivet cap locating end 101b are respectively formed at two ends of the blind rivet cap feeding channel 101, and a protruding ring limiting groove 101c is formed on the blind rivet cap feeding channel 101. The rodless blind nut 20 enters the blind nut feed channel 101 from the blind nut in-feed end 101a and eventually reaches the blind nut in-position end 101 b. The convex ring limiting groove 101c is used for clamping and limiting a convex ring (formed by the blocking part 21) of the rodless pull nail cap 20, so that the phenomenon that the rodless pull nail cap 20 is overturned and dislocated when passing through the pull nail cap feeding channel 101 is prevented, and the stability of feeding of the rodless pull nail cap 20 is improved.
As shown in fig. 9, the movable clip 120 is provided with a main body support serial groove 121. The body support serial groove 121 is used for supporting the body (composed of the filling part 22 and the evagination part 23) of the rodless tack cap 20, and when the rodless tack cap 20 reaches the tack cap arrival end 101b, the body of the rodless tack cap 20 is wrapped by the body support serial groove 121, so that the rodless tack cap 20 can be accurately located. The main body support series groove 121 is a semi-closed U-shaped structure, when the movable clamp 120 rotates, the movable clamp 120 does not interfere with the rodless pull nail cap 20, that is, the rodless pull nail cap 20 does not move along with the rotating movable clamp 120.
The fixing seat 110 is provided with a push rod through hole 111 (as shown in fig. 8), the push rod through hole 111 is communicated with the rivet cap feeding channel 101, and the push rod 210 penetrates through the push rod through hole 111. By forming the push-out rod passing hole 111, the push rod 210 can conveniently pass through the push-out rod passing hole 111 to push the rodless rivet cap 20 out of the clamping space.
As shown in fig. 9, the movable clip 120 has a pop-top cap-in-place guide ramp 122. Because the movable clamp 120 is rotatably arranged, when the structure is designed, the movable clamp 120 and the blind rivet cap feeding channel 101 form an interval, so that when the convex ring of the rodless blind rivet cap 20 is separated from the convex ring limiting groove 101c and is ready to reach the blind rivet cap arrival end 101b, the blind rivet cap arrival guide inclined surface 122 guides the convex ring of the rodless blind rivet cap 20, and the body support serial groove 121 guides the body of the rodless blind rivet cap 20, so that the rodless blind rivet cap 20 can accurately reach the blind rivet cap arrival end 101 b. Further, in order to allow the rodless nut 20 to stably reach the nut-up end 101b, the body support serial groove 121 is provided with a magnet 121a (shown in fig. 9) having a magnetic attraction force to the rodless nut 20, so that the rodless nut 20 can better overcome the friction force to reach the nut-up end 101 b.
Next, a specific structure of the rivet cap pushing mechanism 200 will be described:
the push rod 210 has a negative pressure chamber, and the negative pressure chamber is communicated with a negative pressure generator (refer to fig. 4). When the push rod 210 pushes the rodless rivet head 20 to be connected in series with the rod body of the pull rod 450, the rod body of the pull rod 450 also enters into the negative pressure cavity of the push rod 210, and negative pressure is formed in the negative pressure cavity to suck the pull rod 450, so that the pull rod 450 can be ensured to move stably without falling. In particular, when the nozzle of the entire fully automatic rodless nail gun is downward, the pull rod 450 does not fall down due to the gravity when the head 451 of the rodless nail cap 20 and the pull rod 450 together pass through the left and right nipples 520 and 530 to the outside of the nozzle.
Next, a specific structure of the pull rod clamping mechanism 300 will be described:
as shown in fig. 11 and 12, the clamping aid 320 has a left-side clamping aid surface 321 and a right-side clamping aid surface 322, the left-side tensioning tip 3122 has a left-side clamping force-bearing surface 3122a cooperating with the left-side clamping aid surface 321, and the right-side tensioning tip 3132 has a right-side clamping force-bearing surface 3132a cooperating with the right-side clamping aid surface 322;
as shown in fig. 11 and 12, the expanding auxiliary block 330 has a left expanding auxiliary surface 331 and a right expanding auxiliary surface 332, the left expanding clamping end 3122 has a left expanding bearing surface 3122b cooperating with the left expanding auxiliary surface 331, and the right expanding clamping end 3132 has a right expanding bearing surface 3132b cooperating with the right expanding auxiliary surface 332;
in the initial state, the left opening stress surface 3122b of the left opening-clamping end 3122 abuts against the left opening auxiliary surface 331, and the right opening stress surface 3132b of the right opening-clamping end 3132 abuts against the right opening auxiliary surface 332, at this time, the left clamping jaw 312 and the right clamping jaw 313 are in the opening state, and the pull rod 450 is located between the left clamping jaw 312 and the right clamping jaw 313;
starting a power source, wherein the power source drives the telescopic movable block 311 to move to one side, and the telescopic movable block 311 drives the left clamping jaw 312 and the right clamping jaw 313 to further move the left clamping end 3122 and the right clamping end 3132, so that a left clamping stress surface 3122a on the left clamping end 3122 abuts against the left clamping auxiliary surface 321, and a right clamping stress surface 3132a on the right clamping end 3132 abuts against the right clamping auxiliary surface 322, so that the left clamping jaw 312 and the right clamping jaw 313 are clamped with each other, and the pull rod 450 is clamped and applies force to one side;
the power source is disconnected, the telescopic movable block 311 drives the left clamping jaw 312 and the right clamping jaw 313 to reset in opposite directions, and the left clamping jaw 312 and the right clamping jaw 313 are in an opening state again.
As shown in fig. 13, a left pull rod clamping groove 361 is formed on the left clamping end 3122, and a right pull rod clamping groove 362 is formed on the right clamping end 3132. The rod body of the pull rod 450 can be better clamped by arranging the left pull rod clamping groove 361 and the right pull rod clamping groove 362.
In one embodiment, the left-side rod clamping groove 361 has a left-side rod clamping inclined surface, the right-side rod clamping groove 362 has a right-side rod clamping inclined surface 3621 (as shown in fig. 13), and the left-side rod clamping inclined surface has the same structure as the right-side rod clamping inclined surface 3621. Correspondingly, the tail part 452 of the pull rod 450 is provided with a circular truncated cone side surface 453 (as shown in fig. 14), the circular truncated cone side surface 453 is provided with an inclined surface matched with the left pull rod clamping inclined surface and the right pull rod clamping inclined surface 3621, the rod body of the pull rod 450 is clamped by the left pull rod clamping groove 361 and the right pull rod clamping groove 362, the left pull rod clamping inclined surface and the right pull rod clamping inclined surface 3621 tightly abut against the circular truncated cone side surface 453 to form 'surface contact', which can form a large stressed surface, when the left clamping jaw 312 and the right clamping jaw 313 apply axial force to the pull rod 450, the 'surface contact' is not easy to break the pull rod 450, and the service life of the pull rod 450 is greatly prolonged.
Next, a specific structure of the tie bar balance mechanism 400 will be described:
as shown in fig. 14, the clamping spring assembly includes: a left elastic member 441 and a right elastic member 442.
As shown in fig. 15, the base 410 is provided with a left receiving groove 412 and a right receiving groove 413 respectively located at two sides of the axis of the pull rod passing hole 411, the left receiving groove 412 is penetrated through the pull rod passing hole 411, and the right receiving groove 413 is penetrated through the pull rod passing hole 411; the left clamping block 420 is movably accommodated in the left accommodating groove 412 in a reciprocating manner, and the right clamping block 430 is movably accommodated in the right accommodating groove 413 in a reciprocating manner; the left clamp block 420 has a left clamp end 421 (shown in FIG. 15), and the right clamp block 430 has a right clamp end 431 (shown in FIG. 15); the left clamping end 421 is provided with a left clamping groove 4211 (as shown in fig. 15) of the pull rod, the right clamping end 431 is provided with a right clamping groove 4311 (as shown in fig. 15) of the pull rod, and the pull rod 450 is clamped by the left clamping groove 4211 of the pull rod and the right clamping groove 4311 of the pull rod.
The left elastic member 441 is used to provide an elastic force to the left clamp block 420 so that the left clamp end 421 of the left clamp block 420 approaches in the direction of the draw bar passing hole 411. The right elastic member 442 is used to provide an elastic force to the right clamping block 430 so that the right clamping end 431 of the right clamping block 430 approaches the draw-bar passing hole 411. In the present embodiment, the left and right elastic members 441 and 442 are spring structures.
As shown in fig. 16, further, the reciprocating direction of the left holding block 420 forms a left included angle α 1 with the axial direction of the draw-bar passing hole 411, and the reciprocating direction of the right holding block 430 forms a right included angle α 2 with the axial direction of the draw-bar passing hole 411; wherein 0< α 1<90 °, 0< α 2<90 °. With such a structure, the left clamping block 420 and the right clamping block 430 in the pull rod balance mechanism 400 can be more easily pushed away when the rodless pull nail cap 20 and the push rod 210 pass through the left clamping block 420 and the right clamping block 430.
Next, a specific structure of the muzzle stabilizing mechanism 500 will be described:
as shown in fig. 18, the left side nozzle 520 has a left side rod clamping groove 521, and the right side nozzle 530 has a right side rod clamping groove 531.
As shown in fig. 18, a left tie rod reset inclined surface 5211 and a left blind rivet cap boosting inclined surface 5212 are respectively formed at both ends of the left tie rod clamping groove 521; two ends of the right pull rod clamping groove 531 form a right pull rod reset inclined plane and a right rivet cap boosting inclined plane respectively.
Next, the operation of the left and right return inclined surfaces 5211 and 5211 will be described:
when the object 40 is riveted, acting force is applied to the pull rod 450, the head 451 of the pull rod 450 extrudes the rodless rivet cap 20, so that the rodless rivet cap 20 deforms, and when the head 451 of the pull rod 450 is completely extracted from the rodless rivet cap 20, the head 451 of the pull rod 450 needs to return to the cavities of the left clamping jaw 520 and the right clamping jaw 530;
in order to facilitate the head part 451 of the pull rod 450 to return to the cavity of the left clamp mouth 520 and the right clamp mouth 530, a left pull rod reset inclined plane 5211 and a right pull rod reset inclined plane are specially designed, when the pull rod 450 returns, the inclined plane on the head part 451 is contacted with the left pull rod reset inclined plane 5211 and the right pull rod reset inclined plane, the left clamp mouth 520 and the right clamp mouth 530 rotate in opposite directions by an angle after being stressed, and the temporarily separated left clamp mouth 520 and right clamp mouth 530 provide an avoiding space for returning the pull rod 450, so that the whole head part 451 can smoothly pass through the left pull rod clamping groove 521 and the right pull rod clamping groove 531;
after the head portion 451 completely passes over the left and right tie bar clamping grooves 521 and 531, the left and right nipples 520 and 530 are re-clamped together by the elastic member.
Next, the operation of the left side blind rivet head assist inclined surface 5212 and the right side blind rivet head assist inclined surface will be described:
when the head 451 of the pull rod 450 is returned to the cavity of the left-side clamping mouth 520 and the right-side clamping mouth 530, another rodless rivet cap 20 is connected in series to the tail 452 of the pull rod 450, and the rodless rivet cap 20 is pushed by the corresponding push rod from the tail of the pull rod 450 to the head;
when the rodless rivet cap 20 reaches the left-side pull rod clamping groove 521 and the right-side pull rod clamping groove 531, the rodless rivet cap 20 pushes the left-side clamping mouth 520 and the right-side clamping mouth 530 away again under the matching of the left-side pull nail cap boosting inclined plane 5212 and the right-side pull nail cap boosting inclined plane, so that the head 451 of the rodless rivet cap 20 and the pull rod 450 smoothly passes through the left-side pull rod clamping groove 521 and the right-side pull rod clamping groove 531 to reach the outer portions of the left-side clamping mouth 520 and the right-side clamping mouth 530 again, and the rodless rivet cap 20 is ready for next riveting.
As shown in fig. 18, a left tooth 550 is fixed on the left-side nozzle 520, a right tooth 560 is fixed on the right-side nozzle 530, and the left tooth 550 and the right tooth 560 are engaged with each other. In one embodiment, the left side gears 550 are circular gear plate structures and the right side gears 560 are circular gear plate structures; in another embodiment, the left side gears 550 are a half circle gear plate configuration and the right side gears 560 are a half circle gear plate configuration.
The left and right nipples 520 and 530 inevitably come into contact with the article 40; as shown in fig. 19, for example, when the right-side nozzle 530 contacts the object 40, the object 40 applies a force to the right-side nozzle 530, and the right-side nozzle 530 and the right-side teeth 560 thereon tend to rotate (i.e., rotate counterclockwise in the drawing) due to the rotation of the right-side nozzle 530 on the gun nozzle body 510; since the left tooth 550 and the right tooth 560 are engaged with each other, the right tooth 560 drives the left tooth 550 to rotate clockwise, the left tooth 550 drives the left nozzle 520 to rotate clockwise, and the left nozzle 520 with the tendency of rotating clockwise tightly abuts against the right nozzle 530, so that even if the right nozzle 530 touches the object 40, the left nozzle 520 and the right nozzle 530 exert a mutual abutting force, and the left nozzle 520 and the right nozzle 530 are clamped tightly and cannot rotate, so that the pull rod clamped therein is not influenced and has high stability.
Regarding the clamping elastic member 540, in one embodiment, the clamping elastic member 540 includes a left torsion spring and a right torsion spring, the left torsion spring is disposed on the left nozzle 520, the right torsion spring is disposed on the right nozzle 530, the left torsion spring provides a restoring torsion force to the left nozzle 520, and the right torsion spring provides a restoring torsion force to the right nozzle 530, so that the left nozzle 520 and the right nozzle 530 are clamped close to each other; in another embodiment, the resilient member is a cylindrical spring, and two ends of the cylindrical spring respectively abut against the left and right nipples 520 and 530.
To further increase the level of automation of the fully automatic rodless nail gun 30, the fully automatic rodless nail gun 30 of the present invention further includes a nail cap feed mechanism 600 (shown in fig. 4). The blind rivet head feeding mechanism 600 is used for feeding the rodless blind rivet heads 20 in an unordered stack into the blind rivet head clamping mechanism 100 in a correct posture one by one.
As shown in fig. 20, specifically, the staple cap feed mechanism 600 includes: the rivet cap arranging machine 610, the rivet cap pushing device 620, the rivet cap positioning jig 630 and the air blowing device (not shown);
as shown in fig. 21 and 22, the pop-up rivet cap positioning fixture 630 is provided with a pop-up rivet cap accommodating cavity, which has a feeding port 631, a discharging port 632, and a blowing port 633.
The blind rivet cap discharger 610 is used for conveying the rodless blind rivet caps 20 to the feed inlet 631; the draw-pin cap discharger 610 can adopt a common screw discharger in the prior art to pour a plurality of rodless draw-pin caps 20 which are randomly arranged in a pile into a containing box of the common screw discharger, thereby realizing that the plurality of rodless draw-pin caps 20 are orderly arranged and output.
The rivet cap pushing device 620 is used for pushing the rodless rivet cap 20 from the feeding port 631 to the discharging port 632; the rivet cap pushing device 620 comprises a pushing cylinder 621 and a pushing rod 622 (shown in fig. 20); the pushing cylinder 621 is in driving connection with the pushing rod 622, and the pushing rod 622 penetrates through the rivet cap accommodating cavity. When the rodless rivet cap 20 reaches the material inlet 631, the pushing cylinder 621 drives the pushing rod 622 to extend, so as to push the rodless rivet cap 20 at the material inlet 631 to the material outlet 632. The push cylinder 621 drives the push rod 622 to retract, thereby preparing for the next rodless nut 20 to be pushed.
The blowing device is communicated with the cavity of the rivet cap accommodating cavity through a blowing port 633; the blowing device can be obtained by using the prior art.
The rivet cap feeding mechanism 600 further includes a rivet cap feeding pipe 650 (as shown in fig. 20), wherein one end of the rivet cap feeding pipe 650 is inserted into the discharging hole 632, and the other end is inserted into the rivet cap feeding passage 101 of the fixing base 110. When the rodless rivet cap 20 reaches the discharge port 632, the air blowing device blows air to the cavity of the rivet cap accommodating cavity through the air blowing port 633, the rodless rivet cap 20 at the discharge port 632 is blown out at the moment of air blowing, and the rodless rivet cap 20 reaches the rivet cap feeding channel 101 along the pipeline of the rivet cap feeding pipe 650.
The cross section of the inner cavity of the feeding pipe 650 of the rivet cap is a square structure (as shown in fig. 23).
As shown in fig. 24, the interior cavity of the blind rivet head feed tube 650 has an upper top surface 651 and a lower bottom surface 652, and the two end surfaces of the rodless blind rivet head 20 are respectively abutted against the upper top surface 651 and the lower bottom surface 652. In the process of conveying the rodless rivet cap 20 along the pipeline of the rivet cap feeding pipe 650, in order to prevent the rodless rivet cap 20 from overturning, the cross section of the inner cavity of the rivet cap feeding pipe 650 is particularly made to be of a square structure, so that two end faces of the rodless rivet cap 20 respectively abut against the upper top face 651 and the lower bottom face 652, the rodless rivet cap 20 is constrained by the upper top face 651 and the lower bottom face 652, the rodless rivet cap is very stable in the conveying process and cannot overturn, and accurate feeding of the rodless rivet cap 20 is achieved. The distance between the upper top plane 651 and the lower bottom plane 652 is D1, and the distance between the two end planes of the rodless tack cap 20 is D2. In one embodiment, D1 ═ D2 may be made; in another embodiment, D1> D2 (i.e., D1 is slightly larger than D2, such as by 1 mm) may be provided, so that rodless tack cap 20 is not clamped too tightly by upper top surface 651 and lower bottom surface 652, and rodless tack cap 20 has a suitable play, which is equivalent to a reduction in friction, and smooth transfer is achieved without flipping rodless tack cap 20.
It is to be explained that under the conditions of D1> D2, due to uncertain external conditions, the rodless tack cap 20 may contact the upper top face 651 and also the lower bottom face 652 during the transportation, and the introduction of the term "both end faces of the rodless tack cap 20 abut against the upper top face 651 and the lower bottom face 652" in the above description does not mean that the rodless tack cap 20 simultaneously contacts the upper top face 651 and the lower bottom face 652 during the transportation.
In one embodiment, the blind rivet head feed tube 650 is a PU tube. In another embodiment, the nut feeder tube 650 is a silicone tube. The PU pipe is relatively smooth and has low friction, so that the rodless rivet cap 20 can be conveyed in the pipeline at a higher speed.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a full-automatic rodless blind rivet rifle which characterized in that includes: the rivet cap clamping mechanism, the rivet cap pushing mechanism, the pull rod clamping mechanism, the pull rod balancing mechanism and the gun nozzle stabilizing mechanism are arranged on the gun nozzle;
rivet cap clamping machine constructs includes: the device comprises a fixed seat with a rivet cap feeding channel and a movable clamp rotationally arranged on the fixed seat through an elastic resetting piece;
the rivet cap ejecting mechanism comprises: the push rod and the driver are in driving connection with the push rod;
the pull rod clamping mechanism comprises: the clamping device comprises a clamping component, a clamping auxiliary block, an opening auxiliary block and a power source; embrace and press from both sides subassembly includes: the telescopic movable block, the left clamping jaw and the right clamping jaw; the left clamping jaw is provided with a left rotating end and a left tensioning end, and the right clamping jaw is provided with a right rotating end and a right tensioning end; the left rotating end and the right rotating end are rotatably arranged on the telescopic movable block; an opening and clamping movable space is formed between the clamping auxiliary block and the opening auxiliary block, and the left opening and clamping end and the right opening and clamping end move in the opening and clamping movable space; the power source is in driving connection with the telescopic movable block;
the pull rod balancing mechanism comprises: the clamping device comprises a base, a left clamping block, a right clamping block, a clamping elastic component and a pull rod; the base is provided with a pull rod through hole, the pull rod penetrates through the pull rod through hole, and the clamping elastic assembly applies elastic force for clamping the pull rod to the left clamping block and the right clamping block;
the muzzle stabilizing mechanism includes: the gun nozzle comprises a gun nozzle body, a left clamping nozzle, a right clamping nozzle and a clamping elastic piece; the left side clamping mouth and the right side clamping mouth are rotatably arranged on the gun nozzle body, and the clamping elastic piece is formed by applying elastic force for clamping the left side clamping mouth and the right side clamping mouth mutually.
2. The fully automatic rodless nail gun according to claim 1,
a blind rivet cap feeding end and a blind rivet cap locating end are respectively formed at two ends of the blind rivet cap feeding channel, and a convex ring limiting groove is formed in the blind rivet cap feeding channel;
the movable clamp is provided with a main body supporting serial groove;
the fixed seat is provided with a push rod through hole which is communicated with the nail pulling cap feeding channel;
the push rod penetrates through the push rod through hole.
3. The fully automatic rodless nail gun according to claim 1,
the left side is opened and is pressed from both sides to serve and has been seted up the left side pull rod and embrace and press from both sides the groove, the right side is opened and is pressed from both sides to serve and has been seted up the right side pull rod and embrace and press from both sides the groove.
4. The fully automatic rodless nail gun according to claim 1 or 3,
the clamping auxiliary block is provided with a left clamping auxiliary surface and a right clamping auxiliary surface, the left clamping end is provided with a left clamping stress surface matched with the left clamping auxiliary surface, and the right clamping end is provided with a right clamping stress surface matched with the right clamping auxiliary surface;
the opening auxiliary block is provided with a left opening auxiliary surface and a right opening auxiliary surface, the left opening clamping end is provided with a left opening stress surface matched with the left opening auxiliary surface, and the right opening clamping end is provided with a right opening stress surface matched with the right opening auxiliary surface.
5. The fully automatic rodless nail gun according to claim 1,
the clamping spring assembly comprises: a left elastic member and a right elastic member;
the base is provided with a left side accommodating groove and a right side accommodating groove which are respectively positioned at two sides of the axis of the pull rod through hole, the left side accommodating groove is communicated with the pull rod through hole, and the right side accommodating groove is communicated with the pull rod through hole;
the left clamping block is movably accommodated in the left accommodating groove in a reciprocating manner, and the right clamping block is movably accommodated in the right accommodating groove in a reciprocating manner;
the left clamping block is provided with a left clamping end, and the right clamping block is provided with a right clamping end;
the left elastic piece is used for providing elastic force for the left clamping block so that the left clamping end of the left clamping block approaches to the pull rod through hole direction;
the right elastic piece is used for providing elastic force for the right clamping block so that the right clamping end of the right clamping block approaches to the pull rod through hole;
the left clamping end is provided with a left clamping groove of the pull rod, and the right clamping end is provided with a right clamping groove of the pull rod.
6. The fully automatic rodless nail gun according to claim 1 or 5, wherein the reciprocating direction of the left clamping block forms a left included angle α 1 with the axial direction of the pull rod through hole, and the reciprocating direction of the right clamping block forms a right included angle α 2 with the axial direction of the pull rod through hole;
wherein 0< α 1<90 °, 0< α 2<90 °.
7. The fully automatic rodless nail gun according to claim 1,
the left side is fixed on the left side and is equipped with left side tooth spare, the right side is fixed on the right side and is equipped with right side tooth spare, left side tooth spare with right side tooth spare intermeshing.
8. The fully automatic rod-less blind rivet gun as claimed in claim 1 or 7, wherein a left side pull rod clamping groove is formed on the left side clamping mouth, and a right side pull rod clamping groove is formed on the right side clamping mouth;
two ends of the left pull rod clamping groove form a left pull rod reset inclined plane and a left blind rivet cap boosting inclined plane respectively;
and the two ends of the right pull rod clamping groove form a right pull rod reset inclined plane and a right rivet cap boosting inclined plane respectively.
9. The fully automatic rodless nail gun according to claim 1, further comprising a nail cap loading mechanism;
draw nail cap feed mechanism includes: the rivet cap discharging machine comprises a rivet cap discharging machine, a rivet cap pushing device, a rivet cap positioning jig and an air blowing device;
the rivet cap positioning jig is provided with a rivet cap accommodating cavity, and the rivet cap accommodating cavity is provided with a feeding hole, a discharging hole and a blowing hole;
the rivet cap discharging machine is used for conveying the rodless rivet caps to the feeding port;
the rivet cap pushing device is used for pushing the rodless rivet cap from the feeding port to the discharging port;
the air blowing device is communicated with the cavity of the rivet cap accommodating cavity through the air blowing port;
the rivet cap feeding mechanism further comprises a rivet cap feeding pipe, one end of the rivet cap feeding pipe is inserted into the discharge hole, and the other end of the rivet cap feeding pipe is inserted into the rivet cap feeding channel of the fixed seat;
the cross section of the inner cavity of the feeding pipe of the rivet cap is of a square structure.
10. The fully automatic rodless nail gun according to claim 1, wherein the push rod has a negative pressure chamber that communicates with a negative pressure generator.
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CN202111669831.4A CN114247843B (en) | 2021-12-31 | 2021-12-31 | Full-automatic rodless rivet gun |
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DE2036784A1 (en) * | 1969-07-28 | 1971-02-11 | Aerpat Ag, Zug (Schweiz) | Rohrfonniger Bhndniel and method of setting the same |
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