CN110834058A

CN110834058A - Spring coiling machine and spring coiling process

Info

Publication number: CN110834058A
Application number: CN201911156963.XA
Authority: CN
Inventors: 杜强
Original assignee: Changzhou Terry Spring Co Ltd
Current assignee: Changzhou Terry Spring Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-02-25

Abstract

The invention discloses a spring coiling machine which comprises a roller and a steel wire, wherein the roller is arranged at the top and the bottom of the steel wire, one side of the roller, which is close to the steel wire, is in contact with the steel wire, guide plates are arranged at the top and the bottom of the steel wire, a mandrel is arranged at the right side of each guide plate, the right end of the steel wire penetrates out of the roller and the guide plates and surrounds the outer surface of the mandrel, a lower support rod, an upper support rod, a cutter and a pitch rod are sequentially arranged at one side of the steel wire, which is far away from the guide plates, and the roller, the lower support rod, the upper support rod, the cutter and the pitch rod. Compared with a pure mechanical or mechanical pneumatic structure, the spring coiling machine device with high automation degree is adopted, the spring coiling machine device is simple in structure, large in diameter of the processed wire, convenient to operate and use, and improves the spring coiling efficiency.

Description

Spring coiling machine and spring coiling process

Technical Field

The invention relates to the technical field of spring coiling, in particular to a spring coiling machine and a spring coiling process.

Background

The spring is a general part in the mechanical industry, has wide application, and along with the development of the industry, the spring as a basic part is increasingly widely applied, the requirements on the space shape and the forming precision of the spring are continuously improved, the spring coiling machine is commonly called as a spring machine and generally refers to mechanical equipment for producing the spring, most of the traditional spring coiling machines adopt a pure mechanical or mechanical pneumatic structure, the structure is complex, the diameter of a processed wire is small, the automation degree of the spring coiling machine equipment in the using process is low, and the operation is inconvenient, so that the spring coiling machine and the spring coiling process are provided, and the problems provided in the background technology are solved.

Disclosure of Invention

The invention aims to provide a spring coiling machine and a spring coiling process, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a spring coiling machine comprises rollers and a steel wire, wherein the rollers are arranged at the top and the bottom of the steel wire, one side of each roller, which is close to the steel wire, is in contact with the roller, guide plates are arranged at the top and the bottom of the steel wire, a mandrel is arranged on the right side of each guide plate, the right end of the steel wire penetrates out of the rollers and the guide plates and surrounds the outer surface of the mandrel, a lower support rod, an upper support rod, a cutter and a pitch rod are sequentially arranged on one side of the steel wire, which is far away from the guide plates, and the rollers, the lower support rods, the upper support rods, the cutter and the pitch rod are driven;

the hydraulic system comprises a hydraulic pump, a motor, a one-way valve, an overflow valve, a first electromagnetic directional valve, a filter, a temperature controller, a liquid level meter, an air filter, a stop valve, a pressure gauge, a second electromagnetic directional valve, a hydraulic lock, a hydraulic cylinder and an electric contact pressure gauge.

Preferably, the maximum oil supply pressure of the hydraulic pump is 5.8 MPa.

Preferably, the maximum flow rate of the hydraulic pump is 22.8L/min.

Preferably, the working pressure of the hydraulic cylinder is 6-6.5 MPa.

Preferably, the overflow valve is a direct-acting overflow valve and is used for unloading oil in the upper cavity of the hydraulic cylinder so as to prevent the upper cavity of the hydraulic cylinder from being overloaded.

A spring rolling process uses any one of the spring coiling machines, and comprises the following process steps:

under the action of the roller, the steel wire penetrates through the guide plate, when the steel wire touches the grooves at the front ends of the lower support rod and the upper support rod, friction points are respectively formed at the outlet of the guide plate and the positions of the lower support rod and the upper support rod, the steel wire is bent and deformed under the limiting and guiding action of the friction points to form a spring ring, the lower support rod and the upper support rod move, the diameter of the spring ring can be controlled by controlling the positions of the lower support rod and the upper support rod, the steel wire contacts the inclined surface of the pitch rod in the process of bending the steel wire into the spring ring, the pitch rod can move along the axial direction formed by winding the spring to form the pitch of the spring, when the support ring of the tight-coil spring or the spring is wound, the pitch rod moves back, the back ring of the back ring is formed by leaning against the wound front ring, after the spring is wound, the feeding mechanism stops feeding, the cutter acts to cut off the steel wire under the coordination of, and taking out the processed coil spring.

Compared with the prior art, the invention has the beneficial effects that: adopt spring coiling machine equipment that degree of automation is higher, for adopting pure mechanical type or mechanical pneumatic type structure, not only the structure is fairly simple, and the processing wire rod diameter is bigger moreover to it is more convenient to operate, convenient to use, has improved spring system efficiency.

Drawings

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

fig. 2 is a schematic diagram of the system of the present invention.

In the figure: the hydraulic control system comprises a roller 1, a steel wire 2, a guide plate 3, a mandrel 4, a lower support rod 5, an upper support rod 6, a cutter 7, a pitch rod 8, a hydraulic system 9, a hydraulic pump 91, a motor 92, a one-way valve 93, an overflow valve 94, a first electromagnetic directional valve 95, a filter 96, a temperature controller 97, a liquid level meter 98, an air filter 99, a stop valve 910, a pressure gauge 911, a second electromagnetic directional valve 912, a hydraulic lock 913, a hydraulic cylinder 914 and an electric contact pressure gauge 915.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In embodiment 1, please refer to fig. 1-2, the present invention provides a technical solution: the utility model provides a spring coiling machine, including gyro wheel 1 and steel wire 2, gyro wheel 1 sets up at the top and the bottom of steel wire 2, gyro wheel 1 is close to one side of steel wire 2 and rather than the mutual contact, the top and the bottom of steel wire 2 all are provided with deflector 3, the right side of deflector 3 is provided with dabber 4, the right-hand member of steel wire 2 is worn out and is encircleed at the surface of dabber 4 in gyro wheel 1 and deflector 3, one side that deflector 3 was kept away from to steel wire 2 has set gradually lower support bar 5, go up bracing piece 6, cutter 7 and pitch pole 8, gyro wheel 1, lower support bar 5, go up bracing piece 6, cutter 7 and pitch pole 8 are driven by hydraulic system 9.

The hydraulic system 9 comprises a hydraulic pump 91, an electric motor 92, a check valve 93, an overflow valve 94, a first electromagnetic directional valve 95, a filter 96, a temperature controller 97, a liquid level meter 98, an air cleaner 99, a stop valve 910, a pressure gauge 911, a second electromagnetic directional valve 912, a hydraulic lock 913, a hydraulic cylinder 914 and an electric contact pressure gauge 915.

Specifically, the maximum oil supply pressure of the hydraulic pump 91 is 5.8 MPa.

Specifically, the maximum flow rate of the hydraulic pump 91 is 22.8L/min.

Specifically, the working pressure of the hydraulic cylinder 914 is 6-6.5 MPa.

Specifically, the relief valve 94 is a direct-acting relief valve for unloading the oil in the upper chamber of the hydraulic cylinder 914 to prevent overloading of the upper chamber of the hydraulic cylinder 914.

In the working of the embodiment, under the action of the roller 1, the steel wire 2 penetrates through the guide plate 3, when the steel wire 2 touches the grooves at the front ends of the lower support rod 5 and the upper support rod 6, 3 friction points are respectively formed at the outlet of the guide plate 3 and the positions of the lower support rod 5 and the upper support rod 6, the steel wire 2 is bent and deformed under the limiting and guiding actions of the 3 friction points to form a spring ring, the lower support rod 5 and the upper support rod 6 move, the size of the diameter of the spring ring can be controlled by controlling the positions of the lower support rod 5 and the upper support rod 6, the steel wire 2 contacts the inclined surface of the pitch rod 8 in the process of bending the steel wire 2 into the spring ring, the pitch rod 8 can move along the axial direction of the spring winding forming to form the pitch of the spring, when the dense-coil spring or the support ring of the spring is wound, the pitch rod 8 is retreated to the back, the next spring ring is formed by leaning, when one spring is coiled, the feeding mechanism stops feeding, the cutter 7 acts, the steel wire 2 is cut off under the cooperation of the mandrel 4, and the processed coil spring is taken out.

Embodiment 2, referring to fig. 1-2, when the electromagnet is powered on, the first electromagnetic directional valve 95 is connected to the left of the loop, the hydraulic oil enters the upper chamber of the hydraulic cylinder 914 through the hydraulic lock 913, the lower chamber returns oil, the piston rod descends, the front roller 1 presses the steel wire 2, when the pressure in the upper chamber of the hydraulic cylinder 914 rises to the upper limit of the electric contact pressure gauge 915, the contact of the pressure gauge 911 sends a signal to de-energize the electromagnet 1DT, the directional valve 12 is in the middle position, the hydraulic cylinder 914 is pressurized by the hydraulic control one-way valve 93, when the pressure in the upper chamber of the hydraulic cylinder 914 falls to the lower limit of the electric contact pressure gauge 915, the electric contact pressure gauge 915 sends a signal to power on the electromagnet 1DT, the hydraulic pump 91 supplies oil to the system again to raise the pressure in the upper chamber, so that the pressure in the hydraulic cylinder 914 is maintained within the required working range, the piston rod rises, the direct-acting overflow valve 94 is used for unloading oil in an upper cavity of the hydraulic cylinder 914 to prevent the upper cavity of the hydraulic cylinder 914 from being overloaded, when the electromagnet 3DT is electrified, the hydraulic cylinder 914 descends, the rear roller 1 compresses the steel wire 2, when the electromagnets 6DT and 8DT are electrified, the rodless cavity of the hydraulic cylinder 914 is respectively controlled to feed oil, the upper support rod 6 and the lower support rod 5 simultaneously compress the steel wire 2 to cause the steel wire to be subjected to bending deformation, the electromagnet 10DT is electrified, and the wire clamp hydraulic cylinder 914 is clamped to ensure production safety.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A spring coiling machine comprises a roller (1) and a steel wire (2), and is characterized in that: the roller (1) is arranged at the top and the bottom of the steel wire (2), one side, close to the steel wire (2), of the roller (1) is in contact with the roller, guide plates (3) are arranged at the top and the bottom of the steel wire (2), a mandrel (4) is arranged on the right side of each guide plate (3), the right end of the steel wire (2) penetrates out of the roller (1) and the guide plates (3) and surrounds the outer surface of the mandrel (4), a lower support rod (5), an upper support rod (6), a cutter (7) and a pitch rod (8) are sequentially arranged on one side, far away from the guide plates (3), of the steel wire (2), and the roller (1), the lower support rod (5), the upper support rod (6), the cutter (7) and the pitch rod (8) are all driven by a hydraulic system (9);

the hydraulic system (9) comprises a hydraulic pump (91), a motor (92), a one-way valve (93), an overflow valve (94), a first electromagnetic directional valve (95), a filter (96), a temperature controller (97), a liquid level meter (98), an air filter (99), a stop valve (910), a pressure gauge (911), a second electromagnetic directional valve (912), a hydraulic lock (913), a hydraulic cylinder (914) and an electric contact pressure gauge (915).

2. A spring coiling machine as claimed in claim 1, wherein: the maximum oil supply pressure of the hydraulic pump (91) is 5.8 MPa.

3. A spring coiling machine as claimed in claim 1, wherein: the maximum flow rate of the hydraulic pump (91) is 22.8L/min.

4. A spring coiling machine as claimed in claim 1, wherein: the working pressure of the hydraulic cylinder (914) is 6-6.5 MPa.

5. A spring coiling machine as claimed in claim 1, wherein: the overflow valve (94) is a direct-acting overflow valve and is used for unloading oil in an upper cavity of the hydraulic cylinder (914) so as to prevent the upper cavity of the hydraulic cylinder (914) from being overloaded.

6. A spring rolling process is characterized in that: use of the spring coiling machine of any of the preceding claims 1-5, the process steps are as follows:

under the action of the roller (1), the steel wire (2) penetrates through the guide plate (3), when the steel wire (2) touches grooves at the front ends of the lower support rod (5) and the upper support rod (6), 3 friction points are formed at the outlet of the guide plate (3) and the positions of the lower support rod (5) and the upper support rod (6) respectively, the steel wire is bent and deformed under the limiting and guiding actions of the 3 friction points to form a spring ring, the lower support rod (5) and the upper support rod (6) move, the size of the diameter of the spring ring can be controlled by controlling the positions of the lower support rod (5) and the upper support rod (6), the steel wire (2) contacts the inclined plane of the pitch rod (8) in the process of bending the steel wire (2) into the spring ring, the pitch rod (8) can move along the axial direction formed by winding the spring (1) to form the pitch of the spring, when the dense ring spring or the support ring of the spring is wound, the pitch rod (8) is retreated to the back, the back circle of spring coils is formed by leaning against the wound front circle, when one spring is wound, the feeding mechanism stops feeding, the cutter (7) acts, the steel wire (2) is cut off under the cooperation of the mandrel (4), and the processed coil spring is taken out.