CN113523048B - U-shaped bolt fastener cold bending forming device - Google Patents

U-shaped bolt fastener cold bending forming device Download PDF

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Publication number
CN113523048B
CN113523048B CN202110828796.XA CN202110828796A CN113523048B CN 113523048 B CN113523048 B CN 113523048B CN 202110828796 A CN202110828796 A CN 202110828796A CN 113523048 B CN113523048 B CN 113523048B
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positioning adjustment
group
receiving
fixedly connected
positioning
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CN202110828796.XA
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CN113523048A (en
Inventor
张东
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Ningbo Zhongjiang High Strength Bolt Co ltd
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Ningbo Zhongjiang High Strength Bolt Co ltd
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Priority to CN202110828796.XA priority Critical patent/CN113523048B/en
Publication of CN113523048A publication Critical patent/CN113523048A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The utility model discloses a U-shaped bolt fastener cold bending forming device, which relates to the technical field of metal forming and solves the problems that the existing U-shaped bolt needs to process bolts with different length types in the cold bending processing process, the adjustment operation is troublesome, meanwhile, parts can be clamped on an upper die and ascend along with the upper die after the cold bending processing is finished, a worker needs to take down a workpiece and then place the workpiece into a collecting box, the operation is troublesome, and the production efficiency is affected; the top of the bracket body is fixedly connected with a group of cold bending driving parts; the upper part of the bracket body is connected with a group of cold-bending upper modules in a sliding way; the middle part of the bracket body is connected with a group of material receiving pieces in a front-back sliding way; the rear of the bracket body is fixedly connected with a group of material storage baskets. The utility model can adjust the distance between two groups of positioning pieces, can realize the positioning of workpieces with different lengths, avoids the operation of manual material receiving, reduces the operation, improves the working efficiency, and has simple use and convenient operation.

Description

U-shaped bolt fastener cold bending forming device
Technical Field
The utility model relates to the technical field of metal forming, in particular to a cold roll forming device for a U-shaped bolt fastener.
Background
U-shaped bolt, namely riding bolt, the English name is U-bolt, is a nonstandard part, is named because of the U-shape, two ends of the U-shaped bolt are provided with threads to be combined with nuts, and is mainly used for fixing tubular objects such as water pipes or sheet-shaped objects such as plate springs of automobiles.
For example, application number: the utility model discloses a U-shaped bolt fastener cold bending forming device which comprises a machine case, an extrusion frame, extrusion arms, pulleys and a forming module, wherein the extrusion frame is fixedly arranged on the upper surface of the machine case, two extrusion arms are symmetrically arranged in a box body of the extrusion frame, the pulleys are connected in grooves at the lower end of the extrusion arms through a first installation shaft and a second installation shaft, the first installation shaft and the second installation shaft are of cylindrical structures, a buffer sleeve is sleeved at the outer ring of the pulleys in the device, the buffer sleeve has a shockproof effect, the buffer sleeve is reasonable in structure design, is not easy to fall off, is not easy to enable the extrusion arms to shake in the extrusion process, improves the quality of cold bending forming of the U-shaped bolt fastener, is convenient to assemble and disassemble, is stable in fixed structure, is convenient to maintain and replace, and is suitable for popularization.
Based on the above, the existing U-shaped bolt needs to process bolts with different length types in the cold bending process, at the moment, the positioning device of the workpiece needs to be adjusted, the existing positioning device needs to be independently adjusted during adjustment, the adjustment operation is troublesome, meanwhile, after the cold bending process is finished, the part can be clamped on the upper die and ascends along with the upper die, a worker needs to take down the workpiece and then place the workpiece in the collecting box, the operation is troublesome, and the production efficiency is affected; therefore, the existing requirements are not met, and a U-shaped bolt fastener cold-bending forming device is provided.
Disclosure of Invention
The utility model aims to provide a U-shaped bolt fastener cold-bending forming device, which aims to solve the problems that the existing U-shaped bolt provided in the background art needs to process bolts with different length types in the cold-bending processing process, a workpiece positioning device needs to be adjusted at the moment, the existing positioning device needs to be independently adjusted during adjustment, the adjustment operation is troublesome, meanwhile, parts are clamped on an upper die after the cold-bending processing is finished and rise along with the upper die, and workers need to take down the workpiece and then place the workpiece in a collecting box, so that the operation is troublesome and the production efficiency is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the cold bending forming device of the U-shaped bolt fastener comprises a bracket body; the top of the bracket body is fixedly connected with a group of cold bending driving parts; the upper part of the bracket body is connected with a group of cold-bending upper modules in a sliding way; the piston rod of the cold bending driving piece is fixedly connected with the cold bending upper module; a group of positioning adjusting handles are rotatably connected to the left lower part of the front end surface of the bracket body; the inner side of the lower part of the bracket body is rotationally connected with two groups of positioning adjustment driving parts; two groups of positioning pieces are connected above the lower part of the bracket body in a sliding manner; a group of feeding middle transmission shafts are rotatably connected to the left side and the right side of the rear of the bracket body; the middle part of the bracket body is connected with a group of material receiving pieces in a front-back sliding way; the rear of the bracket body is fixedly connected with a group of material storage baskets.
Preferably, the positioning adjustment handle further comprises a positioning adjustment driving bevel gear, the rear part of the positioning adjustment handle is coaxially and fixedly connected with a group of positioning adjustment driving bevel gears, the positioning adjustment driving piece further comprises a positioning adjustment driven bevel gear, the left end face of the front group of positioning adjustment driving piece is coaxially and fixedly connected with a group of positioning adjustment driven bevel gears, and the positioning adjustment driving bevel gears and the positioning adjustment driven bevel gears are meshed to form a bevel gear transmission mechanism together.
Preferably, the positioning adjustment driving piece further comprises positioning adjustment coaxial chain wheels, the left end face and the right end face of the positioning adjustment driving piece are coaxially and 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 together through transmission chains in a transmission mode to form a transmission chain transmission mechanism.
Preferably, the positioning adjustment driving piece further comprises a positioning adjustment driving screw rod, a group of positioning adjustment driving screw rods are coaxially and fixedly connected to the left side and the right side of the positioning adjustment driving piece, the screw pitches of the positioning adjustment driving screw rods on the two sides are identical and opposite in rotation direction, and the positioning adjustment driving screw rods and the positioning piece are in threaded transmission connection to form a screw nut transmission pair.
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 gears and the material receiving driving racks are meshed to form a gear rack transmission mechanism together.
Preferably, the feeding middle transmission shaft further comprises a receiving driving gear, the outer side of the feeding middle transmission shaft is coaxially and fixedly connected with a group of receiving driving gears, the receiving piece further comprises a receiving driven rack, the left side and the right side of the top of the receiving piece are fixedly connected with a group of receiving driven racks, and the receiving driving gears and the receiving driven racks are meshed to form a gear rack transmission mechanism together.
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 storage basket.
Preferably, the support body still includes the ejector block, and the upper portion of support body is provided with two sets of ejector blocks towards the below, and two sets of ejector blocks are located the left and right sides of mould on the cold bending respectively.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, synchronous reverse sliding of the two groups of positioning pieces is realized by adopting transmission modes such as a bevel gear transmission mechanism, a screw nut transmission pair and a transmission chain transmission mechanism, and the distance between the two groups of positioning pieces is adjusted, so that workpieces with different lengths can be positioned, the adjustment is simple, and the neutrality is good.
By adopting the gear rack transmission mechanism, the workpiece can be automatically dropped and simultaneously automatically received by driving the receiving part to slide back and forth in the ascending process after cold bending is completed, the manual receiving operation is avoided, the operation is reduced, and the working efficiency is improved.
The utility model can adjust the distance between two groups of positioning pieces, can realize positioning of workpieces with different lengths, has simple adjustment, good neutrality, 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 diagram of an axial structure of the present utility model;
FIG. 2 is a schematic view of a side structure of a propeller shaft according to the present utility model;
FIG. 3 is a schematic view of a driving shaft side structure of a positioning member according to the present utility model;
FIG. 4 is a schematic view of the drive shaft side structure of the positioning adjustment drive of the present utility model;
FIG. 5 is a schematic view of the axial side structure of the bracket body according to the present utility model;
FIG. 6 is a schematic view of the mounting shaft side structure of the receiving unit of the present utility model;
FIG. 7 is a schematic view of a side structure of a material receiving unit transmission shaft according to the present utility model;
FIG. 8 is a schematic view of a receiving member according to the present utility model;
in the figure: 1. a bracket body; 101. a jacking block; 2. positioning an adjusting handle; 201. positioning and adjusting a drive bevel gear; 3. positioning the adjustment drive; 301. positioning and adjusting a driven bevel gear; 302. positioning and adjusting a coaxial sprocket; 303. positioning and adjusting a driving screw rod; 4. a positioning piece; 5. a cold roll driving member; 6. cold bending the upper mould; 601. cold bending an upper die; 602. a receiving driving rack; 7. a feeding middle transmission shaft; 701. a material receiving driving gear; 702. a receiving driven gear; 8. a receiving piece; 801. receiving a driven rack; 9. and (5) a storage basket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 8, an embodiment of the present utility model provides: the cold bending forming device of the U-shaped bolt fastener 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 face of the bracket body 1; the inner side of the lower part of the bracket body 1 is rotationally connected with two groups of positioning adjustment driving parts 3; two groups of positioning pieces 4 are connected above the lower part of the bracket body 1 in a sliding manner; a group of charging middle transmission shafts 7 are rotatably connected to the left side and the right side of the rear part of the bracket body 1; the middle part of the bracket body 1 is connected with a group of material receiving pieces 8 in a front-back sliding way; a group of material storage baskets 9 are fixedly connected to the rear of the bracket body 1.
Further, the positioning adjustment handle 2 further includes a positioning adjustment drive bevel gear 201, the rear portion of the positioning adjustment handle 2 is coaxially and fixedly connected with a set of positioning adjustment drive bevel gears 201, the positioning adjustment driving member 3 further includes a positioning adjustment driven bevel gear 301, the left end face of the front set of positioning adjustment driving member 3 is coaxially and fixedly connected with a set of positioning adjustment driven bevel gears 301, the positioning adjustment drive bevel gears 201 and the positioning adjustment driven bevel gears 301 are meshed together to 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 set of positioning adjustment driving member 3 to rotate through the bevel gear transmission mechanism formed by the positioning adjustment drive bevel gears 201 and the positioning adjustment driven bevel gears 301.
Further, the positioning adjustment driving piece 3 further comprises a positioning adjustment coaxial sprocket 302, the left end face and the right end face of the positioning adjustment driving piece 3 are coaxially and fixedly connected with a group of positioning adjustment coaxial sprocket 302, the two groups of positioning adjustment coaxial sprockets 302 on the same side are connected together through transmission chains to form a transmission chain transmission mechanism, in use, the front group of positioning adjustment driving piece 3 rotates, and the front group of positioning adjustment driving piece 3 drives the two groups of positioning adjustment driving pieces 3 to synchronously rotate through the transmission chain transmission mechanism formed by the two groups of positioning adjustment coaxial sprockets 302 on the same side through transmission chains.
Further, the positioning adjustment driving piece 3 further comprises a positioning adjustment driving screw 303, a group of positioning adjustment driving screws 303 are coaxially and fixedly connected to the left side and the right side of the positioning adjustment driving piece 3, the screw pitches of the positioning adjustment driving screws 303 on the two sides are the same and are opposite in rotation direction, the positioning adjustment driving screws 303 are in threaded transmission connection with the positioning pieces 4 to form a screw nut transmission pair together, in use, when the two groups of positioning adjustment driving pieces 3 synchronously rotate, the two groups of positioning adjustment driving pieces 3 drive the two groups of positioning pieces 4 to synchronously and reversely slide through the screw nut transmission pair formed by the positioning adjustment driving screws 303 and the positioning pieces 4 in threaded transmission connection together, and the distance between the two groups of positioning pieces 4 is adjusted so as to meet the positioning of workpieces with different lengths.
Further, the cold-bending upper module 6 further includes a cold-bending upper die 601 and a receiving driving rack 602, the lower part of the front end surface 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 and right sides of the cold-bending upper module 6 are fixedly connected with a group of receiving driving racks 602, the feeding middle transmission shaft 7 further includes a receiving driven gear 702, the inner side of the feeding middle transmission shaft 7 is coaxially and fixedly connected with a group of receiving driven gears 702, the receiving driven gears 702 and the receiving driving racks 602 are meshed together to form a rack-and-pinion transmission mechanism, in use, the cold-bending driving member 5 drives the cold-bending upper module 6 to slide up and down, and the cold-bending upper module 6 drives the feeding middle transmission shaft 7 to rotate through the rack-and-pinion transmission mechanism formed by the meshing together of the receiving driven gears 702 and the receiving driving racks 602.
Further, the feeding middle transmission shaft 7 further comprises a receiving driving gear 701, a group of receiving driving gears 701 are coaxially and fixedly connected to the outer side of the feeding middle transmission shaft 7, the receiving part 8 further comprises a receiving driven rack 801, a group of receiving driven racks 801 are fixedly connected to the left side and the right side of the top of the receiving part 8, the receiving driving gears 701 and the receiving driven racks 801 are meshed to form a rack-and-pinion transmission mechanism together, in use, when the feeding middle transmission shaft 7 rotates, the feeding middle transmission shaft 7 drives the receiving part 8 to slide back and forth through the rack-and-pinion transmission mechanism formed by the meshing of the receiving driving gears 701 and the receiving driven racks 801.
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 material storage basket 9, and in use, when a workpiece falls to the receiving part 8, the workpiece slides into the material storage basket 9 from the bottom plate of the receiving part 8.
Further, the support body 1 further includes a top material block 101, two sets of top material blocks 101 are disposed on the upper portion of the support body 1 towards the lower direction, the two sets of top material blocks 101 are respectively located on the left side and the right side of the upper cold-bending die 601, in use, when the upper cold-bending die 601 lifts up to the top with a workpiece, the workpiece is propped against the top material blocks 101, and the workpiece falls off from the upper cold-bending die 601.
Working principle: the positioning adjustment handle 2 is rotated, the positioning adjustment handle 2 drives a front group of positioning adjustment driving pieces 3 to rotate through a bevel gear transmission mechanism formed by meshing and jointly forming a positioning adjustment driving bevel gear 201 and a positioning adjustment driven bevel gear 301, the front group of positioning adjustment driving pieces 3 drive two groups of positioning adjustment driving pieces 3 to synchronously rotate through a transmission chain transmission mechanism formed by jointly connecting two groups of positioning adjustment coaxial sprockets 302 on the same side through transmission chains, and the two groups of positioning adjustment driving pieces 3 drive two groups of positioning pieces 4 to synchronously and reversely slide through a screw nut transmission pair formed by jointly connecting a positioning adjustment driving screw 303 and positioning pieces 4 in a transmission way, so that the positioning of workpieces with different lengths is met; when the automatic feeding device is used, a workpiece is placed between two groups of positioning pieces 4, a cold-bending driving piece 5 drives a cold-bending upper die 6 to slide up and down, the workpiece is extruded downwards through the cold-bending upper die 601, cold-bending forming of the workpiece is achieved, after the cold-bending forming is completed, the cold-bending upper die 601 slides upwards along with the workpiece, the cold-bending upper die 6 drives a feeding middle transmission shaft 7 to rotate through a gear-rack transmission mechanism formed by meshing a receiving driven gear 702 and a receiving driving rack 602, the feeding middle transmission shaft 7 drives a receiving piece 8 to slide forwards through a gear-rack transmission mechanism formed by meshing the receiving driving gear 701 and the receiving driven rack 801, the receiving piece 8 slides to the lower part of the cold-bending upper die 601, when the cold-bending upper die 601 lifts up to the top along with the workpiece, the workpiece is propped against a jacking block 101, the workpiece falls off from the cold-bending upper die 601, and the workpiece slides into a storage basket 9 from a bottom plate of the receiving piece 8, and automatic feeding of the workpiece is achieved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 (4)

1.U shape bolt fastener cold roll forming device, 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 parts (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 bracket body (1); the inner side of the lower part of the bracket body (1) is rotationally connected with two groups of positioning adjustment driving parts (3); two groups of positioning pieces (4) are connected above the lower part of the bracket body (1) in a sliding manner; a group of feeding middle transmission shafts (7) are rotatably connected to the left side and the right side of the rear of the bracket body (1); the middle part of the bracket body (1) is connected with a group of material receiving pieces (8) in a front-back sliding way; a group of material storage baskets (9) are fixedly connected to the rear of the bracket body (1);
the upper cold bending module (6) further comprises an upper cold bending die (601) and a material receiving driving rack (602), the lower part of the front end face of the upper cold bending module (6) is fixedly connected with a group of upper cold bending die (601), the rear parts of the left side and the right side of the upper cold bending module (6) are fixedly connected with a group of material receiving driving racks (602), the feeding middle transmission shaft (7) further comprises a material receiving driven gear (702), the inner side of the feeding 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;
the feeding middle transmission shaft (7) further comprises a receiving driving gear (701), the outer side of the feeding middle transmission shaft (7) is coaxially and fixedly connected with a group of receiving driving gears (701), the receiving part (8) further comprises a receiving driven rack (801), the left side and the right side of the top of the receiving part (8) are fixedly connected with a group of receiving driven racks (801), and the receiving driving gear (701) and the receiving driven racks (801) are meshed to form a gear-rack transmission mechanism; the bottom of the receiving piece (8) is of a backward inclined structure, and the rear part of the receiving piece (8) is opposite to the material storage basket (9); the support body (1) is still including top material piece (101), and the upper portion of support body (1) is provided with two sets of top material pieces (101) towards the below, and two sets of top material pieces (101) are located the left and right sides of mould (601) on the cold bending respectively.
2. The U-bolt fastener cold roll forming apparatus of claim 1, wherein: the positioning adjustment handle (2) further comprises a positioning adjustment driving bevel gear (201), a group of positioning adjustment driving bevel gears (201) are coaxially and fixedly connected to the rear portion of the positioning adjustment handle (2), the positioning adjustment driving piece (3) further comprises a positioning adjustment driven bevel gear (301), a group of positioning adjustment driven bevel gears (301) are coaxially and fixedly connected to the left end face of the front group of positioning adjustment driving piece (3), and the positioning adjustment driving bevel gears (201) and the positioning adjustment driven bevel gears (301) are meshed to form a bevel gear transmission mechanism together.
3. The U-bolt fastener cold roll forming apparatus of claim 1, wherein: the positioning adjustment driving piece (3) further comprises positioning adjustment coaxial chain wheels (302), a group of positioning adjustment coaxial chain wheels (302) are coaxially and fixedly connected to the left end face and the right end face of the positioning adjustment driving piece (3), and the two groups of positioning adjustment coaxial chain wheels (302) on the same side are in transmission connection through a transmission chain to form a transmission chain transmission mechanism together.
4. The U-bolt fastener cold roll forming apparatus of claim 1, wherein: the positioning adjustment driving piece (3) further comprises a positioning adjustment driving screw (303), a group of positioning adjustment driving screws (303) are coaxially and fixedly connected to the left side and the right side of the positioning adjustment driving piece (3), the screw pitches of the positioning adjustment driving screws (303) on the two sides are the same and opposite, and the positioning adjustment driving screws (303) and the positioning piece (4) are in threaded transmission connection to form a screw nut transmission pair.
CN202110828796.XA 2021-07-22 2021-07-22 U-shaped bolt fastener cold bending forming device Active CN113523048B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110828796.XA CN113523048B (en) 2021-07-22 2021-07-22 U-shaped bolt fastener cold bending forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110828796.XA CN113523048B (en) 2021-07-22 2021-07-22 U-shaped bolt fastener cold bending forming device

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CN113523048A CN113523048A (en) 2021-10-22
CN113523048B true CN113523048B (en) 2023-07-04

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CN205887745U (en) * 2016-08-23 2017-01-18 河南固强电力器材有限公司 U -shaped bolt former
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KR101892103B1 (en) * 2018-06-15 2018-08-28 (주)대양앙카볼트 U-bolt manufacturing apparatus
CN110238249B (en) * 2019-07-15 2020-12-25 海盐东盛紧固件制造有限公司 U-shaped bolt cold roll forming device
CN211489163U (en) * 2019-11-27 2020-09-15 咸阳聚力石油机械制造有限公司 Bolt bending machine for machining U-shaped bolts
CN111744996A (en) * 2020-07-01 2020-10-09 深圳市创智联环保设备有限公司 U type hardware preparation facilities
CN213378660U (en) * 2020-10-15 2021-06-08 河北邯旺不锈钢制品有限公司 Bolt forming device
CN112387830B (en) * 2020-12-04 2022-06-24 广东力锋五金制品有限公司 Automatic change bending device

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Publication number Priority date Publication date Assignee Title
KR101688854B1 (en) * 2016-07-01 2017-01-02 심형용 Apparatus for manufacturing U-bolt

Non-Patent Citations (1)

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利用模具过压技术解决U形螺栓的平行度问题;董天毅;模具技术(04);第37-39页 *

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