阅读说明：本技术 一种可快速更换的铆螺母工装 (But quick replacement's rivet nut frock ) 是由 周广 陈爱英 昊阳 于 2021-07-02 设计创作，主要内容包括：本发明涉及铆螺母设备技术领域,尤其是一种可快速更换的铆螺母工装,包括下模座、上模座、上模芯安装组件、导向组件、下模芯安装组件、上模芯和下模芯；上模芯安装组件包括安装板和安装座,安装座固定安装在安装板的底部；下模芯安装组件包括固定座、两个双向螺杆、两个定位夹板、两个蜗轮、蜗杆和手轮,固定座固定安装在上模座顶部,两个双向螺杆分别转动安装在固定座的内侧。本发明双向螺杆转动,进而使得两个定位夹板对相应的下模芯进行固定,使得下模芯与上模芯精确对准,操作简单快捷。(The invention relates to the technical field of nut riveting equipment, in particular to a nut riveting tool capable of being replaced quickly, which comprises a lower die base, an upper die core mounting assembly, a guide assembly, a lower die core mounting assembly, an upper die core and a lower die core; the upper die core mounting assembly comprises a mounting plate and a mounting seat, and the mounting seat is fixedly mounted at the bottom of the mounting plate; the lower die core mounting assembly comprises a fixing seat, two bidirectional screw rods, two positioning clamping plates, two worm wheels, a worm and a hand wheel, the fixing seat is fixedly mounted at the top of the upper die base, and the two bidirectional screw rods are respectively rotatably mounted on the inner side of the fixing seat. The bidirectional screw rod rotates, so that the two positioning clamping plates fix the corresponding lower mold core, the lower mold core is accurately aligned with the upper mold core, and the operation is simple and rapid.)

1. A quick-replaceable rivet nut tool comprises a lower die holder (1), an upper die holder (2), an upper die core mounting assembly (3), a guide assembly (5), a lower die core mounting assembly (6), an upper die core (7) and a lower die core (8), and is characterized in that the upper die core mounting assembly (3) is mounted at the bottom of the lower die holder (1), the lower die core mounting assembly (6) is mounted at the top of the upper die holder (2), the guide assembly (5) is mounted between the lower die holder (1) and the upper die holder (2), and the upper die core (7) and the lower die core (8) are respectively mounted in the upper die core mounting assembly (3) and the lower die core mounting assembly (6);

the upper die core mounting assembly (3) comprises a mounting plate (31) and a mounting seat (32), the mounting seat (32) is fixedly mounted at the bottom of the mounting plate (31), the upper die base (2) is clamped on the inner side of the mounting seat (32), and clamping grooves (33) are formed in two sides of the mounting seat (32);

lower die core installation component (6) are including fixing base (61), two-way screw rod (62), two locating splint (63), two worm wheel (64), worm (65) and hand wheel (66), fixing base (61) fixed mounting is at upper die base (2) top, two-way screw rod (62) rotate respectively and install the inboard in fixing base (61), two locating splint (63) threaded mounting respectively is at the both ends of two-way screw rod (62), two worm wheel (64) fixed mounting respectively is in the outer end of two-way screw rod (62), worm (65) rotate install in the outside of fixing base (61) and be connected with two worm wheel (64) transmissions, hand wheel (66) fixed mounting is in the outer end of worm (65).

2. The quick-replaceable rivet nut tool according to claim 1, wherein the upper die holder (2) is provided with a positioning assembly (4), the positioning assembly (4) comprises two clamping blocks (43), the two clamping blocks (43) are slidably mounted on the inner side of the upper die holder (2), the two clamping blocks (43) can be matched with corresponding clamping grooves (33), the upper die holder (2) is provided with positioning grooves (41) matched with the mounting plate (31), the inner side of the upper die holder (2) is provided with mounting grooves (42) corresponding to the clamping blocks (43), and the two clamping blocks (43) can slide in the corresponding mounting grooves (42).

3. The quick-replaceable rivet nut tool according to claim 2, characterized in that the positioning assembly (4) further comprises two elastic guide members (44), two racks (45), two gears (46) and two rotating caps (47), one ends of the two elastic guide members (44) are respectively mounted on the side walls of the corresponding clamping blocks (43), the other ends of the two elastic guide members (44) are fixedly connected with the corresponding racks (45), the two racks (45) can slide in the mounting grooves (42), the two gears (46) are rotatably mounted in the mounting grooves (42) and meshed with the corresponding racks (45), and the two rotating caps (47) are coaxially and fixedly connected with the corresponding gears (46).

4. The rivet nut tool capable of being replaced rapidly as claimed in claim 3, wherein the elastic guide member (44) comprises a sleeve (441), a limiting block (442), a sleeve rod (443) and a return spring (444), the sleeve (441) is fixedly connected with the corresponding rack (45), the sleeve rod (443) is inserted into the sleeve (441) and is slidably connected with the sleeve (441), the limiting block (442) is fixedly installed at one end of the sleeve rod (443) and is located inside the sleeve (441), the other end of the sleeve rod (443) is fixedly connected with the corresponding fixture block (43), and the return spring (444) is fixedly installed on the inner wall of the sleeve (441).

5. The quick-replaceable rivet nut tool according to claim 4, characterized in that the guide assembly (5) comprises an upper insert (51) and a first guide seat (52), the upper insert (51) is fixedly installed at the bottom of the upper die holder (2), and the first guide seat (52) is fixedly installed at the bottom of the upper insert (51).

6. The quick-replaceable rivet nut tool according to claim 5, characterized in that the guide assembly (5) further comprises a second guide seat (53), a block (54) and a lower insert (55), the bottom end of the first guide seat (52) is matched with the second guide seat (53), the bottom end of the second guide seat (53) is fixedly connected with the block (54), the bottom of the block (54) is fixedly connected with the lower insert (55), and the lower insert (55) is fixedly mounted at the top of the lower die holder (1).

Technical Field

The invention relates to the technical field of nut riveting equipment, in particular to a nut riveting tool capable of being replaced quickly.

Background

The self-fastening nut is a nut applied to a thin plate or a metal plate, is circular in shape, and is provided with embossing teeth and a guide groove at one end. The principle is that the embossing teeth are pressed into the preset hole positions of the metal plate, the aperture of the preset hole is generally slightly smaller than the embossing teeth of the press riveting nut, the embossing teeth of the press riveting nut are extruded into the plate through pressure, the periphery of the hole is caused to generate plastic deformation, and a deformed object is extruded into the guide groove, so that the locking effect is generated.

The mounting modes of the rivet nut mainly comprise two types, the first type adopts a rivet nut gun for mounting, the mode needs manual operation and a pneumatic system, and certain difficulty is generated in the design of a production line, and the second type adopts a riveting die for mounting; in a traditional riveting die, one set of die usually corresponds to one riveting size, and after a product with one specification is produced, the whole riveting die needs to be detached from a punching machine, then riveting dies with other sizes are mounted, and the riveting dies are aligned again, so that the riveting nut work can be carried out on the product with the other specification;

to this end, chinese patent CN201820762266.3 discloses "a rivet nut tool capable of being replaced quickly, which includes an upper mold plate, a lower mold plate, an upper mold core and a lower mold core, a cavity for accommodating a workpiece is disposed between the head of the upper mold core and the head of the lower mold core, an upper insert is detachably mounted on the bottom surface of the upper mold plate, a lower insert is detachably mounted on the top surface of the lower mold plate, the upper insert is provided with a first countersunk through hole from top to bottom, the lower insert is provided with a second countersunk through hole from bottom to top, the tail of the upper mold core and the tail of the lower mold core both extend out of a clamping ring along the circumferential direction, in an assembled state, the clamping ring of the upper mold core is clamped at the countersunk part of the first countersunk through hole, the clamping ring of the lower mold core is clamped at the countersunk part of the second countersunk through hole", in this patent, the upper mold core is detachably clamped on the upper mold plate, the lower mold core is detachably clamped at the lower mold core, although the mold core of this patent can be disassembled, however, a large number of bolts are needed for fixing during installation and fixation, and the installation is complicated; and the mold core location installation needs accurate alignment, and this patent is mainly through artifical location, and the precision is end to lead to at the bottom of the installation effectiveness of mold core.

Disclosure of Invention

The invention aims to solve the defect that a mold core is complex to install in the prior art, and provides a rivet nut tool capable of being replaced quickly.

In order to achieve the purpose, the invention adopts the following technical scheme:

designing a quick-replaceable rivet nut tool, which comprises a lower die base, an upper die core mounting assembly, a guide assembly, a lower die core mounting assembly, an upper die core and a lower die core, wherein the upper die core mounting assembly is mounted at the bottom of the lower die base, the lower die core mounting assembly is mounted at the top of the upper die base, the guide assembly is mounted between the lower die base and the upper die base, and the upper die core and the lower die core are respectively mounted in the upper die core mounting assembly and the lower die core mounting assembly;

the upper die core mounting assembly comprises a mounting plate and a mounting seat, the mounting seat is fixedly mounted at the bottom of the mounting plate, the upper die seat is clamped at the inner side of the mounting seat, and clamping grooves are formed in two sides of the mounting seat;

lower die core installation component includes fixing base, two-way screw rods, two locating splint, two worm wheels, worm and hand wheel, fixing base fixed mounting is two at the upper die base top two-way screw rods rotate respectively and install the inboard at the fixing base, two locating splint screw thread installation respectively is at the both ends of two-way screw rods, two the outer end at two-way screw rods is fixed mounting respectively to the worm wheel, the worm rotates the outside of installing at the fixing base, and is connected with two worm wheel transmissions, hand wheel fixed mounting is in the outer end of worm.

Preferably, install locating component on the upper die base, locating component includes two fixture blocks, two the equal slidable mounting of fixture block is in the inboard of upper die base, two the fixture block can cooperate with corresponding draw-in groove, the upper die base seted up with mounting panel assorted constant head tank, the mounting groove corresponding with the fixture block has been seted up to the upper die base inboard, two the fixture block can slide in corresponding mounting groove.

Preferably, locating component still includes two elastic guide spare, two racks, two gears and two rotatory caps, and the one end of two elastic guide spare is installed respectively on the lateral wall of corresponding fixture block, the other end and corresponding rack fixed connection of two elastic guide spare, two the rack can slide in the mounting groove, two gear revolve install in the mounting groove, and with corresponding rack toothing, two rotatory caps and the coaxial fixed connection of corresponding gear.

Preferably, the elastic guide piece comprises a sleeve, a limiting block, a loop bar and a return spring, the sleeve is fixedly connected with the corresponding rack, the loop bar is inserted into the sleeve and is in sliding connection with the sleeve, the limiting block is fixedly installed at one end of the loop bar and is located inside the sleeve, the other end of the loop bar is fixedly connected with the corresponding clamping block, and the return spring is fixedly installed on the inner wall of the sleeve.

Preferably, the guide assembly includes an upper insert and a first guide seat, the upper insert is fixedly installed at the bottom of the upper die base, and the first guide seat is fixedly installed at the bottom of the upper insert.

Preferably, the guide assembly further comprises a second guide seat, a block-up block and a lower insert, the bottom end of the first guide seat is matched with the second guide seat, the bottom end of the second guide seat is fixedly connected with the block-up block, the bottom of the block-up block is fixedly connected with the lower insert, and the lower insert is fixedly mounted at the top of the lower die seat.

The invention provides a quick-replaceable rivet nut tool, which has the beneficial effects that:

1. the worm rotates by rotating the hand wheel, so that the worm drives the two worm wheels to rotate, the two bidirectional screw rods rotate, and the two positioning clamping plates fix the corresponding lower mold core so that the lower mold core is aligned with the upper mold core;

2. make gear revolve through rotating two rotatory caps, because gear and rack toothing to make the rack drive the fixture block and remove to the mounting groove inboard, the fixture block breaks away from with the draw-in groove this moment, can directly take out last mould core installation component like this, thereby change or maintain convenient operation swiftly.

Drawings

Fig. 1 is a schematic structural view of a quick replaceable rivet nut tool according to the present invention;

fig. 2 is a schematic structural view of an upper mold core mounting assembly of a quick replaceable rivet nut tool according to the present invention;

FIG. 3 is a schematic structural view of a positioning assembly of a quick replaceable rivet nut tool according to the present invention;

FIG. 4 is a schematic structural view of an elastic guide of a quick replaceable rivet nut tool according to the present invention;

FIG. 5 is a schematic structural view of a guide assembly of a quick replaceable rivet nut tool according to the present invention;

FIG. 6 is a schematic structural view of a lower die core mounting assembly of a quick replaceable rivet nut tool according to the present invention;

in the figure: the die comprises a lower die holder 1, an upper die holder 2, an upper die core mounting assembly 3, a mounting plate 31, a mounting seat 32, a clamping groove 33, a positioning assembly 4, a positioning groove 41, a mounting groove 42, a clamping block 43, an elastic guide 44, a sleeve 441, a limiting block 442, a sleeve rod 443, a return spring 444, a rack 45, a gear 46, a rotating cap 47, a guide assembly 5, an upper insert 51, a first guide seat 52, a second guide seat 53, a heightening block 54, a lower insert 55, a lower die core mounting assembly 6, a fixed seat 61, a bidirectional screw 62, a positioning clamping plate 63, a worm wheel 64, a worm 65, a hand wheel 66, an upper die core 7 and a lower die core 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, a quick replaceable rivet nut tool comprises a lower die holder 1, an upper die holder 2, an upper die core mounting assembly 3, a guide assembly 5, a lower die core mounting assembly 6, an upper die core 7 and a lower die core 8, wherein the upper die core mounting assembly 3 is mounted at the bottom of the lower die holder 1, the lower die core mounting assembly 6 is mounted at the top of the upper die holder 2, the guide assembly 5 is mounted between the lower die holder 1 and the upper die holder 2, and the upper die core 7 and the lower die core 8 are respectively mounted in the upper die core mounting assembly 3 and the lower die core mounting assembly 6; the guide assembly 5 comprises an upper insert 51, a first guide seat 52, a second guide seat 53, a heightening block 54 and a lower insert 55, wherein the upper insert 51 is fixedly arranged at the bottom of the upper die holder 2, and the first guide seat 52 is fixedly arranged at the bottom of the upper insert 51; the bottom end of the first guide seat 52 is matched with the second guide seat 53, and the first guide seat 52 and the second guide seat 53 are matched for conveniently aligning the mold core; the bottom end of the second guide seat 53 is fixedly connected with the block-up 54, the bottom of the block-up 54 is fixedly connected with the lower insert 55, and the lower insert 55 is fixedly installed at the top of the lower die holder 1; the lower insert 55 and the upper insert 51 are used for ensuring the stability between the lower die base 1 and the upper die base 2.

The upper mold core mounting assembly 3 comprises a mounting plate 31 and a mounting seat 32, the mounting seat 32 is fixedly mounted at the bottom of the mounting plate 31, the upper mold base 2 is clamped at the inner side of the mounting seat 32, and clamping grooves 33 are formed in two sides of the mounting seat 32; the lower die core mounting assembly 6 comprises a fixed seat 61, two bidirectional screw rods 62, two positioning clamping plates 63, two worm wheels 64, a worm 65 and a hand wheel 66, wherein the fixed seat 61 is fixedly mounted at the top of the upper die base 2, the two bidirectional screw rods 62 are respectively rotatably mounted at the inner sides of the fixed seat 61, the two positioning clamping plates 63 are respectively installed at two ends of the two bidirectional screw rods 62 in a threaded manner, and the two positioning clamping plates 63 can move in the opposite direction or in the opposite direction along the two bidirectional screw rods 62; the two worm wheels 64 are fixedly arranged at the outer ends of the two bidirectional screw rods 62 respectively, the worm 65 is rotatably arranged at the outer side of the fixed seat 61 and is in transmission connection with the two worm wheels 64, and the hand wheel 66 is fixedly arranged at the outer end of the worm 65. The worm 65 is rotated by rotating the hand wheel 66, so that the worm 65 drives the two worm wheels 64 to rotate, the two-way screws 62 are rotated, and the two positioning clamping plates 63 fix the corresponding lower mold core 8, so that the lower mold core 8 is aligned with the upper mold core 7.

The upper die holder 2 is provided with the positioning assembly 4, the positioning assembly 4 comprises two clamping blocks 43, two elastic guide pieces 44, two racks 45, two gears 46 and two rotating caps 47, the two clamping blocks 43 are arranged on the inner side of the upper die holder 2 in a sliding mode, and the two clamping blocks 43 can be matched with the corresponding clamping grooves 33, so that the installation base 32 can be prevented from moving; the upper die holder 2 is provided with a positioning groove 41 matched with the mounting plate 31, the inner side of the upper die holder 2 is provided with a mounting groove 42 corresponding to the clamping block 43, the two clamping blocks 43 can slide in the corresponding mounting grooves 42, one end of each of the two elastic guide members 44 is respectively mounted on the side wall of the corresponding clamping block 43, the other end of each of the two elastic guide members 44 is fixedly connected with the corresponding rack 45, the two racks 45 can slide in the mounting grooves 42, the two gears 46 are rotatably mounted in the mounting grooves 42 and meshed with the corresponding racks 45, and the two rotating caps 47 are coaxially and fixedly connected with the corresponding gears 46; make gear 46 rotate through rotating two rotatory caps 47, because gear 46 and rack 45 mesh to make rack 45 drive fixture block 43 to the inboard removal of mounting groove 42, fixture block 43 breaks away from with draw-in groove 33 this moment, can directly take out last mould core installation component 3 like this, thereby change or maintain convenient operation swiftly.

The elastic guide 44 comprises a sleeve 441, a limit block 442, a sleeve 443 and a return spring 444, the sleeve 441 is fixedly connected with the corresponding rack 45, the sleeve 443 is inserted into the sleeve 441 and is slidably connected with the sleeve 441, the limit block 442 is fixedly installed at one end of the sleeve 443 and is located inside the sleeve 441, the other end of the sleeve 443 is fixedly connected with the corresponding fixture block 43, and the return spring 444 is fixedly installed on the inner wall of the sleeve 441; when the mold core mounting component 3 is mounted, the clamping block 43 acts on the clamping block 43, then the clamping block 43 moves to drive the sleeve rod 443 to move, and at the moment, the limiting block 442 acts on the return spring 444 to accumulate elastic potential energy; after the latch 43 is engaged with the slot 33, the return spring 444 returns to its original position under the action of the return spring 444, thereby completing the installation of the upper die core installation assembly 3.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.