CN113523048A

CN113523048A - U-shaped bolt fastener cold roll forming device

Info

Publication number: CN113523048A
Application number: CN202110828796.XA
Authority: CN
Inventors: 张东
Original assignee: Individual
Current assignee: Ningbo Zhongjiang High Strength Bolt Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-10-22
Anticipated expiration: 2041-07-22
Also published as: CN113523048B

Abstract

The invention discloses a cold roll forming device for a U-shaped bolt fastener, relates to the technical field of metal forming, and solves the problems that bolts with different lengths and types need to be processed in the cold roll processing process of the existing U-shaped bolt, the adjusting operation is troublesome, meanwhile, after the cold roll processing is finished, parts can be clamped on an upper die and ascend with the upper die, workers need to take down workpieces and then place the workpieces into a collecting box, the operation is troublesome, and the production efficiency is influenced; the top of the bracket body is fixedly connected with a group of cold bending driving pieces; the upper part of the bracket body is connected with a group of cold bending upper modules in a sliding manner; the middle part of the bracket body is connected with a group of material connecting pieces in a front-back sliding manner; and a group of material storage baskets are fixedly connected to the rear part of the support body. The invention can adjust the distance between two sets of positioning pieces, can position workpieces with different lengths, avoids manual material receiving operation, reduces operation, improves working efficiency, and is simple to use and convenient to operate.

Description

U-shaped bolt fastener cold roll forming device

Technical Field

The invention relates to the technical field of metal forming, in particular to a cold roll forming device for a U-shaped bolt fastener.

Background

U-bolts, i.e. horseback bolts, known by the english name U-bolts are non-standard parts, so called U-bolts, which are known for their U-shape and have threads at both ends for engaging nuts, and are mainly used for fixing tubular objects such as water pipes or sheet objects such as leaf springs of automobiles, and are called horseback bolts because they fix the objects in the same manner as if people were riding on the horse, and the U-bolts are manufactured by cold-bending a stud bolt.

For example, application No.: CN201820494572.3 the utility model discloses a U-shaped bolt fastener cold roll forming device, which comprises a machine case, an extrusion frame, an extrusion arm, a pulley and a forming module, the upper surface of the case is fixedly provided with an extrusion frame, two extrusion arms are symmetrically arranged in a box body of the extrusion frame, the groove at the lower end of the extrusion arm is connected with a pulley through a first mounting shaft and a second mounting shaft, the first mounting shaft and the second mounting shaft are both cylindrical structures, the outer ring of the pulley in the device is sleeved with a buffer sleeve, so that the device has a shockproof effect, and the buffer sleeve is reasonable in structural design and not easy to fall off, the extrusion arm is not easy to shake in the extrusion process, the cold bending forming quality of the U-shaped bolt fastener is improved, the pulley is fixed in the groove at the lower end of the extrusion arm through a first mounting shaft and a second mounting shaft, the disassembly and assembly are convenient, the fixing structure is stable, the maintenance and the replacement are convenient, and the device is suitable for popularization.

Based on the above, in the cold bending process of the existing U-shaped bolt, bolts with different lengths and models need to be processed, at the moment, a positioning device of a workpiece needs to be adjusted, the existing positioning device needs to be adjusted independently during adjustment, the adjustment operation is troublesome, meanwhile, after the cold bending process is completed, a part can be clamped on an upper die and ascends along with the upper die, a worker needs to take down the workpiece and then place the workpiece into a collection box, the operation is troublesome, and the production efficiency is affected; thus, the prior need has not been met, and a U-bolt fastener cold roll forming apparatus has been proposed.

Disclosure of Invention

The invention aims to provide a cold-bending forming device for a U-shaped bolt fastener, which aims to solve the problems that the prior U-shaped bolt provided by the background technology needs to process bolts with different lengths and types in the cold-bending processing process, a positioning device of a workpiece needs to be adjusted at the moment, the prior positioning device needs to be independently adjusted during adjustment, the adjustment operation is troublesome, meanwhile, after the cold-bending processing is finished, parts can be clamped on an upper die and ascend along with the upper die, workers need to take down the workpiece and then place the workpiece into a collecting box, the operation is troublesome, and the production efficiency is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: the U-shaped bolt fastener cold bending forming device comprises a bracket body; the top of the bracket body is fixedly connected with a group of cold bending driving pieces; the upper part of the bracket body is connected with a group of cold bending upper modules in a sliding manner; a piston rod of the cold bending driving piece is fixedly connected with the cold bending upper die piece; a group of positioning adjusting handles are rotatably connected to the left lower part of the front end surface of the support body; the inner side of the lower part of the bracket body is rotatably connected with two groups of positioning and adjusting driving pieces; two groups of positioning pieces are connected above the lower part of the bracket body in a sliding manner; the left side and the right side of the rear part of the bracket body are both rotatably connected with a group of charging middle transmission shafts; the middle part of the bracket body is connected with a group of material connecting pieces in a front-back sliding manner; and a group of material storage baskets are fixedly connected to the rear part of the support body.

Preferably, the positioning adjustment handle further comprises a positioning adjustment driving bevel gear, a group of positioning adjustment driving bevel gears are coaxially and fixedly connected to the rear portion of the positioning adjustment handle, the positioning adjustment driving piece further comprises a positioning adjustment driven bevel gear, a group of positioning adjustment driven bevel gears are coaxially and fixedly connected to the left end face of the front group of positioning adjustment driving piece, and the positioning adjustment driving bevel gear and the positioning adjustment driven bevel gears are meshed to form a bevel gear transmission mechanism.

Preferably, the positioning adjustment driving part further comprises a positioning adjustment coaxial chain wheel, the left end surface and the right end surface of the positioning adjustment driving part are fixedly connected with a group of positioning adjustment coaxial chain wheels, and the two groups of positioning adjustment coaxial chain wheels on the same side are connected through a transmission chain to form a transmission chain transmission mechanism.

Preferably, the positioning adjustment driving part further comprises a positioning adjustment driving lead screw, a group of positioning adjustment driving lead screws are fixedly connected to the left side and the right side of the positioning adjustment driving part coaxially, the thread pitches of the positioning adjustment driving lead screws on the two sides are the same, and the two sides are opposite in turning direction, and the positioning adjustment driving lead screws and the positioning part are in threaded transmission connection to form a lead screw nut transmission pair together.

Preferably, the cold-bending upper module further comprises a cold-bending upper die and a material receiving driving rack, the lower part of the front end face of the cold-bending upper module is fixedly connected with a group of cold-bending upper dies, the rear parts of the left side and the right side of the cold-bending upper module are fixedly connected with a group of material receiving driving racks, the feeding middle transmission shaft further comprises a material receiving driven gear, the inner side of the feeding middle transmission shaft is coaxially and fixedly connected with a group of material receiving driven gears, and the material receiving driven gear and the material receiving driving rack are meshed to form a gear rack transmission mechanism.

Preferably, the transmission shaft in the middle of feeding still connects the material driving gear including connecing, and the coaxial fixedly connected with in the outside of transmission shaft in the middle of feeding connects a set of material driving gear that connects, connects the material piece still including connecing the material driven rack, connects the equal fixedly connected with in the top left and right sides of material piece and connects a set of material driven rack that connects, connects the material driving gear and connects the meshing of material driven rack to constitute rack and pinion drive mechanism jointly.

Preferably, the bottom of the receiving part is of a backward inclined structure, and the rear part of the receiving part is opposite to the material storage basket.

Preferably, the bracket body further comprises a material pushing block, two groups of material pushing blocks are arranged on the upper portion of the bracket body downwards, and the two groups of material pushing blocks are respectively located on the left side and the right side of the cold bending upper die.

Compared with the prior art, the invention has the beneficial effects that:

the invention realizes synchronous reverse sliding of two groups of positioning pieces by adopting transmission modes such as a bevel gear transmission mechanism, a lead screw nut transmission pair, a transmission chain transmission mechanism and the like, adjusts the distance between the two groups of positioning pieces, can realize positioning of workpieces with different lengths, and has simple adjustment and good centering property.

Through the adoption of the gear rack transmission mechanism, the material receiving piece is driven to slide back and forth in the ascending process after the cold bending is completed, the automatic falling of the workpiece is realized, meanwhile, the material is automatically received, the manual material receiving operation is avoided, the operation is reduced, and the working efficiency is improved.

The automatic material receiving device can adjust the distance between two sets of positioning pieces, can position workpieces with different lengths, is simple to adjust, has good centering property, realizes automatic falling of the workpieces and automatic material receiving, avoids manual material receiving operation, reduces operation, improves working efficiency, and is simple to use and convenient to operate.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic side view of the drive shaft of the present invention;

FIG. 3 is a schematic side view of the positioning member driving shaft of the present invention;

FIG. 4 is a schematic side view of the positioning adjustment drive member drive shaft of the present invention;

FIG. 5 is a schematic axial side view of the stent body of the present invention;

FIG. 6 is a schematic side structure view of a receiving member mounting shaft according to the present invention;

FIG. 7 is a schematic side view of a transmission shaft of the receiving member of the present invention;

fig. 8 is a schematic structural view of the receiving part of the invention;

in the figure: 1. a stent body; 101. a material ejection block; 2. positioning an adjusting handle; 201. positioning and adjusting the driving bevel gear; 3. positioning the adjusting drive member; 301. positioning and adjusting the driven bevel gear; 302. positioning and adjusting the coaxial chain wheel; 303. positioning and adjusting the driving screw; 4. a positioning member; 5. a cold-bending drive member; 6. cold bending the upper mold part; 601. cold bending an upper die; 602. receiving driving racks; 7. a feeding middle transmission shaft; 701. receiving a driving gear; 702. a material receiving driven gear; 8. receiving a material part; 801. a material receiving driven rack; 9. and a material storage basket.

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 to 8, an embodiment of the present invention includes: the U-shaped bolt fastener cold roll forming device comprises a bracket body 1; the top of the bracket body 1 is fixedly connected with a group of cold bending driving pieces 5; the upper part of the bracket body 1 is connected with a group of cold bending upper modules 6 in a sliding way; the piston rod of the cold bending driving piece 5 is fixedly connected with the cold bending upper module 6; a group of positioning adjusting handles 2 are rotatably connected to the left lower part of the front end surface of the support body 1; the inner side of the lower part of the bracket body 1 is rotatably connected with two groups of positioning and adjusting driving pieces 3; two groups of positioning pieces 4 are connected above the lower part of the bracket body 1 in a sliding manner; the left side and the right side of the rear part of the bracket body 1 are both rotatably connected with a group of charging middle transmission shafts 7; the middle part of the bracket body 1 is connected with a group of connecting parts 8 in a front-back sliding manner; a group of material storage baskets 9 is fixedly connected to the rear of the support body 1.

Further, the positioning adjustment handle 2 further comprises a positioning adjustment driving bevel gear 201, a group of positioning adjustment driving bevel gears 201 is coaxially and fixedly connected to the rear portion of the positioning adjustment handle 2, the positioning adjustment driving member 3 further comprises a positioning adjustment driven bevel gear 301, a group of positioning adjustment driven bevel gears 301 is coaxially and fixedly connected to the left end face of the front group of positioning adjustment driving member 3, the positioning adjustment driving bevel gear 201 and the positioning adjustment driven bevel gears 301 are meshed to jointly form a bevel gear transmission mechanism, and in use, when the positioning adjustment handle 2 is rotated, the positioning adjustment handle 2 drives the front group of positioning adjustment driving member 3 to rotate through the bevel gear transmission mechanism jointly formed by the meshing of the positioning adjustment driving bevel gears 201 and the positioning adjustment driven bevel gears 301.

Further, the coaxial sprocket 302 is adjusted including the location to location regulation driving piece 3, the coaxial fixedly connected with of the equal left and right terminal surface of location regulation driving piece 3 sets of location regulation coaxial sprocket 302, connect through the drive chain transmission between the coaxial sprocket 302 of two sets of location regulation of homonymy and constitute drive chain drive mechanism jointly, in use, it is rotatory to adjust driving piece 3 when the preceding a set of location, preceding a set of location is adjusted driving piece 3 and is driven two sets of location and adjust driving piece 3 synchronous rotations through the drive chain transmission mechanism that connects to constitute jointly through the drive chain transmission between the coaxial sprocket 302 by two sets of location regulation coaxial sprockets of homonymy.

Further, the drive piece 3 is adjusted including the location still, the drive lead screw 303 is adjusted to the location, the equal coaxial fixedly connected with in the left and right sides of drive piece 3 is adjusted in the location adjusts a set of location and adjusts drive lead screw 303, the location of both sides is adjusted the same rotation opposite direction of drive lead screw 303 pitch, location is adjusted drive lead screw 303 and is connected with the 4 threaded transmission of setting element and constitute lead screw nut transmission pair jointly, in use, adjust drive piece 3 synchronous revolution when two sets of location, two sets of location are adjusted drive piece 3 and are driven two sets of setting element 4 synchronous reverse slip through the lead screw nut transmission pair that constitutes jointly by location adjustment

drive lead screw

303 and 4 threaded transmission of setting element, adjust the distance between two sets of setting element 4, in order to satisfy the location to different length work pieces.

Further, the upper module 6 of the cold bending further comprises an upper die 601 of the cold bending and a material receiving driving rack 602, the lower part of the front end face of the upper module 6 of the cold bending is fixedly connected with a group of upper dies 601 of the cold bending, the rear parts of the left side and the right side of the upper module 6 of the cold bending are fixedly connected with a group of material receiving driving racks 602, the middle transmission shaft 7 of the feeding further comprises a material receiving driven gear 702, the inner side of the middle transmission shaft 7 of the feeding is coaxially and fixedly connected with a group of material receiving driven gears 702, the material receiving driven gears 702 and the material receiving driving racks 602 are meshed to form a gear rack transmission mechanism together, in use, the upper module 6 of the cold bending is driven by the cold bending driving piece 5 to slide up and down, and the upper module 6 of the cold bending drives the middle transmission shaft 7 of the feeding to rotate through the gear rack transmission mechanism formed by the material receiving driven gears 702 and the material receiving driving racks 602.

Further, the feeding middle transmission shaft 7 further comprises a material receiving driving gear 701, a group of material receiving driving gears 701 is coaxially and fixedly connected to the outer side of the feeding middle transmission shaft 7, the material receiving part 8 further comprises a material receiving driven rack 801, a group of material receiving driven racks 801 are fixedly connected to the left side and the right side of the top of the material receiving part 8, the material receiving driving gear 701 and the material receiving driven rack 801 are meshed to jointly form a gear and rack transmission mechanism, and when the feeding middle transmission shaft 7 rotates in use, the feeding middle transmission shaft 7 drives the material receiving part 8 to slide back and forth through the gear and rack transmission mechanism formed by the material receiving driving gear 701 and the material receiving driven rack 801 in a meshed mode.

Further, the bottom of the receiving part 8 is of a backward inclined structure, the rear part of the receiving part 8 is opposite to the storage basket 9, and when a workpiece falls into the receiving part 8 in use, the workpiece slides into the storage basket 9 from the bottom plate of the receiving part 8.

Further, the support body 1 further comprises a material ejecting block 101, two groups of material ejecting blocks 101 are arranged on the upper portion of the support body 1 in a downward direction, the two groups of material ejecting blocks 101 are respectively located on the left side and the right side of the cold bending upper die 601, and when the cold bending upper die 601 drives the workpiece to rise to the top in use, the workpiece is ejected on the material ejecting block 101, so that the workpiece falls off from the cold bending upper die 601.

The working principle is as follows: rotating a positioning adjusting handle 2, wherein the positioning adjusting handle 2 drives a front group of positioning adjusting driving pieces 3 to rotate through a bevel gear transmission mechanism formed by meshing a positioning adjusting driving bevel gear 201 and a positioning adjusting driven bevel gear 301 together, the front group of positioning adjusting driving pieces 3 drives two groups of positioning adjusting driving pieces 3 to synchronously rotate through a transmission chain transmission mechanism formed by connecting two groups of positioning adjusting coaxial chain wheels 302 at the same side through transmission chain transmission, the two groups of positioning adjusting driving pieces 3 drive two groups of positioning pieces 4 to synchronously and reversely slide through a screw nut transmission pair formed by connecting a positioning adjusting driving screw 303 and the positioning pieces 4 in a threaded transmission way, and the distance between the two groups of positioning pieces 4 is adjusted to meet the positioning of workpieces with different lengths; when the cold bending forming device is used, a workpiece is placed between the two groups of positioning pieces 4, the cold bending driving piece 5 drives the cold bending upper module 6 to slide up and down, the workpiece is extruded downwards through the cold bending upper module 601, cold bending forming of the workpiece is realized, after the cold bending forming is finished, the cold bending upper module 601 drives the workpiece to slide upwards, the cold bending upper module 6 drives the feeding middle transmission shaft 7 to rotate through a gear and rack transmission mechanism formed by meshing the receiving driven gear 702 and the receiving driving rack 602, the feeding middle transmission shaft 7 drives the receiving piece 8 to slide forwards through the gear and rack transmission mechanism formed by meshing the receiving driving gear 701 and the receiving driven rack 801, so that the receiving piece 8 slides to the lower part of the cold bending upper module 601, when the cold bending upper module 601 drives the workpiece to rise to the top, the workpiece is pushed against the ejector block 101, the workpiece falls off from the cold bending upper module 601, and the workpiece slides into the storage basket 9 from the bottom plate of the receiving piece 8, automatic blanking of the workpiece is realized.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

U-shaped bolt fastener forming device that clogs, its characterized in that: comprises a bracket body (1); the top of the bracket body (1) is fixedly connected with a group of cold bending driving pieces (5); the upper part of the bracket body (1) is connected with a group of cold bending upper modules (6) in a sliding way; a piston rod of the cold bending driving piece (5) is fixedly connected with the cold bending upper module (6); a group of positioning adjusting handles (2) are rotatably connected to the left lower part of the front end surface of the support body (1); the inner side of the lower part of the bracket body (1) is rotatably connected with two groups of positioning and adjusting driving pieces (3); two groups of positioning pieces (4) are connected above the lower part of the bracket body (1) in a sliding way; the left side and the right side of the rear part of the bracket body (1) are respectively and rotatably connected with a group of charging middle transmission shafts (7); the middle part of the bracket body (1) is connected with a group of material connecting parts (8) in a front-back sliding manner; a group of material storage baskets (9) are fixedly connected to the rear part of the support body (1).
2. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the positioning adjusting handle (2) is characterized by further comprising a positioning adjusting drive bevel gear (201), a group of positioning adjusting drive bevel gears (201) are coaxially and fixedly connected to the rear portion of the positioning adjusting handle (2), a group of positioning adjusting driven bevel gears (301) are further arranged in the positioning adjusting driving part (3), a group of positioning adjusting driven bevel gears (301) are coaxially and fixedly connected to the left end face of a group of positioning adjusting driving part (3), and the positioning adjusting drive bevel gears (201) and the positioning adjusting driven bevel gears (301) are meshed to form a bevel gear transmission mechanism.
3. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the positioning adjustment driving part (3) further comprises a positioning adjustment coaxial chain wheel (302), a group of positioning adjustment coaxial chain wheels (302) are fixedly connected with the left end surface and the right end surface of the positioning adjustment driving part (3) in a coaxial mode, and the two groups of positioning adjustment coaxial chain wheels (302) on the same side are connected through a transmission chain to form a transmission chain transmission mechanism.
4. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the positioning adjustment driving piece (3) further comprises a positioning adjustment driving lead screw (303), a group of positioning adjustment driving lead screws (303) are fixedly connected with the left side and the right side of the positioning adjustment driving piece (3) in a coaxial mode, the thread pitches of the positioning adjustment driving lead screws (303) on the two sides are the same and opposite in rotating direction, and the positioning adjustment driving lead screws (303) and the positioning pieces (4) are in threaded transmission connection to form a lead screw nut transmission pair together.
5. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the cold-bending upper module (6) further comprises a cold-bending upper die (601) and a material receiving driving rack (602), the lower part of the front end face of the cold-bending upper module (6) is fixedly connected with a group of cold-bending upper dies (601), the rear parts of the left side and the right side of the cold-bending upper module (6) are fixedly connected with a group of material receiving driving racks (602), the charging middle transmission shaft (7) further comprises a material receiving driven gear (702), the inner side of the charging middle transmission shaft (7) is coaxially and fixedly connected with a group of material receiving driven gears (702), and the material receiving driven gears (702) and the material receiving driving racks (602) are meshed to form a gear-rack transmission mechanism.
6. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the feeding middle transmission shaft (7) further comprises a material receiving driving gear (701), a group of material receiving driving gears (701) are coaxially and fixedly connected to the outer side of the feeding middle transmission shaft (7), the material receiving part (8) further comprises a material receiving driven rack (801), a group of material receiving driven racks (801) are fixedly connected to the left side and the right side of the top of the material receiving part (8), and the material receiving driving gear (701) and the material receiving driven racks (801) are meshed to form a gear-rack transmission mechanism.
7. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the bottom of the receiving part (8) is of a backward inclined structure, and the rear part of the receiving part (8) is opposite to the material storage basket (9).
8. A U-bolt fastener cold roll forming apparatus as claimed in claim 1, wherein: the support body (1) further comprises two groups of ejector blocks (101), wherein the two groups of ejector blocks (101) are arranged on the upper portion of the support body (1) in a downward direction, and the two groups of ejector blocks (101) are respectively located on the left side and the right side of the cold-bending upper die (601).