CN115488268B

CN115488268B - Spring machine

Info

Publication number: CN115488268B
Application number: CN202211155375.6A
Authority: CN
Inventors: 杜智生
Original assignee: Dongguan Dushi Chengfa Precision Spring Co ltd
Current assignee: Dongguan Dushi Chengfa Precision Spring Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2024-03-08
Anticipated expiration: 2042-09-22
Also published as: CN115488268A

Abstract

The invention discloses a spring machine, which comprises a substrate; the cutter mounting seat is mounted on the substrate; the rotating seat is arranged on the base plate and is in signal connection with an upper computer of the spring machine; the multi-angle cam is arranged on the rotating seat, the rotating seat is used for controlling the rotation of the multi-angle cam, a plurality of convex parts are arranged on the multi-angle cam, and the convex parts protrude along the radial direction of the multi-angle cam; the rocker arm is rotationally connected to the base plate, one end of the rocker arm is connected with the cutter mounting seat, and the other end of the rocker arm is abutted to the edge of the polygonal cam. The technical scheme of the invention can improve the production efficiency of the spring.

Description

Spring machine

Technical Field

The invention relates to the technical field of spring manufacturing, in particular to a spring machine.

Background

Existing spring machines use cam controlled cutters: the rotating seat drives the cam to rotate, and when the cam is rotated and the protruding part of the cam is abutted against the rocker arm, the rocker arm pushes the cutter to move towards the discharging part of the spring machine, so that the cutter acts on the spring wire; when the part of the cam which is not protruded is abutted with the rocker arm, the cutter is far away from the discharging piece, and the cutter does not act on the spring wire. When the rotating seat drives the cam to abut against the protruding part and the rocker arm from the non-protruding part, the spring wire is acted once. In the primary action, the cam rotation angle used by the existing spring machine is overlarge, so that the primary action time is long, and the production efficiency of the spring machine is low.

Disclosure of Invention

The invention mainly aims to provide a spring machine which aims at improving the production efficiency of springs.

In order to achieve the above object, the present invention provides a spring machine comprising:

a substrate;

the cutter mounting seat is mounted on the substrate;

the rotating seat is arranged on the base plate and is in signal connection with an upper computer of the spring machine;

the multi-angle cam is arranged on the rotating seat, the rotating seat is used for controlling the rotation of the multi-angle cam, a plurality of convex parts are arranged on the multi-angle cam, and the convex parts protrude along the radial direction of the multi-angle cam;

the rocker arm is rotationally connected to the base plate, one end of the rocker arm is connected with the cutter mounting seat, and the other end of the rocker arm is abutted to the edge of the polygonal cam.

Optionally, the convex parts are provided with corner pieces, the convex parts are arranged in one-to-one correspondence with the corner pieces, the positions of the corner pieces in the radial direction of the polygonal cam are adjustable, and the corner pieces can protrude out of the convex parts in the radial direction of the polygonal cam.

Optionally, sliding grooves are arranged on the polygonal cam in one-to-one correspondence with the corner pieces, the sliding grooves extend along the radial direction of the polygonal cam, sliding convex parts are arranged on the corner pieces, and the sliding convex parts are embedded in the sliding grooves; the bottom of the sliding groove is provided with a threaded hole, the corner fitting is provided with a screw through hole, the screw through Kong Hengjie is strip-shaped, and the screw through hole extends along the radial direction of the polygonal cam.

Optionally, an accommodating countersink is formed at the edge of one end of the screw through hole away from the polygonal cam.

Optionally, the corner fitting is provided with a threaded hole in a radial direction of the polygonal cam, the threaded hole is provided at one end of the corner fitting, which is close to an axis of the polygonal cam, the threaded hole is used for mounting an abutment screw, and one end, which is far away from the corner fitting after the abutment screw is mounted into the threaded hole, is abutted to the polygonal cam.

Optionally, an abutment member is disposed on the polygonal cam, and the abutment member is configured to abut against an end of the abutment screw away from the corner member.

Optionally, the corner fitting is configured to have a plurality of different shapes for each of the corner fittings.

Optionally, the polygonal cam is provided with a mounting hole, and the rotating seat is provided with a mounting threaded hole corresponding to the mounting hole.

Optionally, the polygon cam is provided with a mounting recess recessed in a direction approaching the axis of the polygon cam in a radial direction of the polygon cam.

Optionally, a plurality of rotating seats are disposed on the substrate, and the cutter mounting seats and the rocker arms are disposed in one-to-one correspondence with the rotating seats.

According to the technical scheme, the cutters are controlled through the multi-angle cams, so that when the rocker arms are abutted with the convex parts of the multi-angle cams, the convex parts push the rocker arms, so that the rocker arms push the cutter mounting seats, the cutters move towards the discharging piece, and the spring wires are bent or cut off; when the rocker arm is abutted with the part between the convex parts of the polygonal cam, the cutter is far away from the discharging part, and the action on the spring wire is stopped. From the above, it can be seen that the cutter can be made to act on the spring wire once every time the rocker arm slides over one lobe on the polygon cam. Because the multi-angle cam is provided with a plurality of convex parts, the multi-angle cam can be enabled to rotate by a small angle through setting the distance between the convex parts, and the spring wire can be acted for a plurality of times, so that the production efficiency of the spring machine is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a spring machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of an exploded view of the corner fitting, the multi-angle cam and the rotating base of the embodiment of the spring machine of FIG. 1;

fig. 3 is a schematic view of the corner fitting of the embodiment of the spring machine of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Substrate board	31	Screw via
20	Multi-angle cam	33	Sliding protrusion
				21	Convex part	34	Accommodating sink
22	Sliding groove	40	Rotary seat
				23	Abutting part installation position	41	Mounting threaded hole
24	Mounting recess	50	Cutter mounting seat
				25	Mounting hole	60	Rocker arm
26	Threaded hole	70	Discharging piece
				30	Corner fitting

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The invention provides a spring machine.

In an embodiment of the present invention, referring to fig. 1 and 2, the spring machine includes:

a substrate 10;

a tool mount 50, the tool mount 50 being mounted on the substrate 10;

the rotating seat 40 is arranged on the base plate 10 and is in signal connection with an upper computer of the spring machine;

a multi-angle cam 20, the multi-angle cam 20 being mounted on a rotation seat 40, the rotation seat 40 for controlling rotation of the multi-angle cam 20, the multi-angle cam 20 being provided with a plurality of protrusions 21, the protrusions 21 protruding in a radial direction of the multi-angle cam 20;

the rocker arm 60, the rocker arm 60 is rotatably connected to the base plate 10, one end of the rocker arm 60 is connected to the cutter mount 50, and the other end abuts against the edge of the polygon cam 20.

The tool mount 50 and the rotary mount 40 are both of the prior art and therefore the structure and principle thereof will not be described in detail. The upper computer of the spring machine can control the rotating seat 40, and the rotating speed, the rotating angle, the forward and reverse rotation states of the rotating seat 40 are all controlled by the upper computer of the spring machine. The cams used in the existing spring machine have no plurality of convex parts 21, but only one convex part 21; and existing spring machines typically require multiple knife engagements to act on the spring wire. Thus, in order to avoid the rest of the knife, the cam needs to have a longer movement stroke for the knife, so that the knife is far from the discharging part 70 when the knife does not act on the spring wire, thereby giving way to the other knives. In the spring machine according to the embodiment of the present invention, the single cutter can be rapidly reciprocated under the control of the multi-angle cam 20 by providing the plurality of protrusions 21 to act on the spring wire, so that the machining of the spring wire can be completed by the single cutter, and thus, the cutter stroke is not required to be excessively long. The cutter stroke is reduced, the production efficiency of the spring machine is further improved, and meanwhile, a plurality of cutters are not required to be controlled, so that the energy consumption can be reduced.

Referring to fig. 1 and 2, alternatively, the convex parts 21 are provided with corner pieces 30, the convex parts 21 are provided in one-to-one correspondence with the corner pieces 30, the position of the corner pieces 30 in the radial direction of the polygon cam 20 is adjustable, and the corner pieces 30 may protrude from the convex parts 21 in the radial direction of the polygon cam 20. The provision of the corner fitting 30 allows for adjustable cutter travel: the cutter moves under the driving of the cutter mount 50, the cutter mount 50 is driven by the rocking, and the rocker arm 60 is driven by the polygon cam 20, so that the larger the protrusion 21 of the polygon cam 20 is, the larger the cutter stroke is. The formation of the convex portion 21 is not adjustable, but the corner fitting 30 is provided on the convex portion 21, so that the corner fitting 30 may also abut against the rocker arm 60, and the corner fitting 30 protrudes from the convex portion 21, which corresponds to an increase in the protruding degree of the convex portion 21, thereby improving the stroke of the cutter. In practical use, the stroke of the cutter is variable, and different cutter strokes can perform different functions on the spring wire, for example, different cutter strokes bend the spring wire to different degrees. The provision of the corner pieces 30 allows the multi-angle cam 20 to manufacture more spring patterns.

Referring to fig. 1 to 3, alternatively, the polygonal cam 20 is provided with sliding grooves 22 in one-to-one correspondence with the corner pieces 30, the sliding grooves 22 extend in the radial direction of the polygonal cam 20, the corner pieces 30 are provided with sliding protrusions 33, and the sliding protrusions 33 are embedded in the sliding grooves 22; the bottom of the sliding groove 22 is provided with a threaded hole 26, the corner piece 30 is provided with a screw through hole 31, the cross section of the screw through hole 31 is strip-shaped, and the screw through hole 31 extends along the radial direction of the polygonal cam 20. The sliding protrusion 33 is limited in the sliding groove 22, and the sliding protrusion 33 enables the corner piece 30 to slide along the sliding groove 22 only. Since the angle cam 20 rotates in actual use, the swing arm rubs back and forth at the edge of the angle cam 20, which tends to rotate the angle member 30, and since the sliding groove 22 extends in the radial direction of the angle cam 20, the sliding groove 22 can prevent the rotation from occurring, increasing the stability of the angle member 30. When it is desired to fix the corner fitting 30, a screw may be inserted through the screw through hole 31 and screwed into the screw hole 26, so that the screw head of the screw abuts the corner fitting 30 with the side of the corner fitting 30 away from the polygonal cam 20, thereby restricting the position of the corner fitting 30. The cross section of the screw through hole 31 is strip-shaped, so that the corner piece 30 can be fixed at any position in the chute through the screw.

Referring to fig. 1 to 3, alternatively, an edge of an end of the screw via hole 31 remote from the polygonal cam 20 is provided with a receiving recess 34. The receiving recess 34 may be used to receive the head of a screw such that the head of the screw protrudes to a lesser extent from the corner fitting 30, preventing the screw from hanging other mechanical parts. In addition, since the screw through hole 31 needs to pass through the screw, the inner wall of the screw through hole 31 cannot be abutted against the screw, but the side wall of the accommodating recess 34 can be abutted against the screw head of the screw, thereby improving the fixing capability of the screw diagonal member 30.

Referring to fig. 1 to 3, alternatively, the corner fitting 30 is provided with a screw hole 26 in a radial direction of the polygon cam 20, the screw hole 26 being provided at an end of the corner fitting 30 near an axis of the polygon cam 20, the screw hole 26 being for mounting an abutment screw, the end of the abutment screw remote from the corner fitting 30 being abutted against the polygon cam 20 after being fitted into the screw hole 26. The end of the abutting screw far away from the corner fitting 30 abuts against the polygonal cam 20 after being screwed into the corner fitting 30, the abutting mode can be that the abutting screw abuts against one side wall of the sliding groove 22 directly, or as shown in fig. 2, the polygonal cam 20 is provided with an abutting member mounting position 23, the abutting member mounting position 23 can be a threaded hole, the abutting member can be another screw, and after the screw is screwed into the threaded hole, the screw head of the screw abuts against the screw head of the abutting screw mutually; the abutment mounting location 23 may be an insertion hole, and the abutment may be a rod with one end expanded, and after the rod is inserted into the insertion hole, the expanded end abuts against the screw head of the abutment screw. The abutting screw can prevent the corner fitting 30 from sliding towards the axis of the polygonal cam 20, and the self-locking structure is similar to that of a screw and a nut, namely, the screw can be driven to rotate by rotating the screw, but the screw cannot be driven to rotate by moving along the extending direction of the screw, so that the screw cannot move similarly along the direction of the screw under the pushing action of external force, and after the abutting screw abuts against the polygonal cam 20, the corner fitting 30 cannot move towards the axis of the polygonal cam 20 due to the self-locking principle.

Referring to fig. 1 to 2, optionally, an abutment member is provided on the polygon cam 20 for abutting with an end of the abutment screw remote from the corner member 30. The contact is the above-described component attached to the contact attachment position 23. The abutment members are provided such that the force from the corner fitting 30 does not directly act on the polygon cam 20, thereby improving the service life of the polygon cam 20. The abutment member may be integrally formed with the polygonal cam, for example, a square column protruding from a side surface of the polygonal cam 20 facing away from the rotating seat 40, and a planar side wall of the square column may be disposed facing the corner member 30, and at this time, the screw head of the abutment screw may abut against the square column.

Referring to fig. 1 to 3, alternatively, the corner pieces 30 are configured to have a plurality of kinds, each of the corner pieces 30 having a different shape. The angle 30 has different shapes, so that the cutter has different action modes, and springs with different shapes can be processed. The corner fitting 30 may also be provided with an adjustment screw hole provided along the radial direction of the polygon cam 20, the adjustment screw hole being provided at one end of the corner fitting 30 facing away from the axis of the polygon cam 20. The adjusting screw is matched with the corner piece through an adjusting threaded hole in the corner piece 30, one end of the adjusting screw, which is away from the axis of the polygonal cam 20, is configured into a round head, and a hexagonal counter bore can be formed in the top end of the round head. When in use, a hexagonal wrench or a hexagonal screwdriver is inserted into the hexagonal countersunk head, and the adjusting screw is protruded out of the end face of the corner piece 30 by rotating the adjusting screw; of course, the adjustment screw may be turned to trap the corner fitting 30 and thus be disabled. The extent to which the adjustment screw protrudes from the corner piece 30 may vary the manner in which the cutter acts on the spring wire. It should be noted that the adjustment screw is merely a fine adjustment of the shape of the surface of the diagonal member 30 and thus does not protrude too much from the surface of the diagonal member 30. The adjustment screw may be disposed not in the radial direction of the polygon cam 20 but at an angle to the radial direction of the polygon cam 20; multiple adjusting screws can be arranged on one corner piece 30, so that the adjustment of the surface shape of the corner piece 30 is more flexible and accurate. The inclination angle of the matching screw thread of the adjusting screw and the adjusting screw hole can be set as small as possible, namely, the included angle between the tangential direction of the screw thread and the axis direction of the screw is as close to a right angle as possible. Therefore, the adjustment of the adjusting screw is more accurate, and the self-locking effect between the adjusting screw and the adjusting screw hole is stronger.

Referring to fig. 1 and 2, alternatively, the polygon cam 20 is provided with a mounting hole 25, and the rotating base 40 is provided with a mounting screw hole 41 provided corresponding to the mounting hole 25. When the polygon cam 20 is to be mounted on the rotating base 40, a screw may be inserted through the mounting hole 25 and screwed into the mounting screw hole 41, and the head of the screw may be abutted against the side of the polygon cam 20 facing away from the rotating base 40, thereby completing the fixation of the polygon cam 20. The mounting hole 25 may be a long hole, for example, extending in the circumferential direction of the polygon cam 20, while one mounting hole 25 corresponds to a plurality of mounting screw holes 41, thus making the mounting angle adjustment of the polygon cam 20 more flexible. The mounting hole 25 may be provided such that both ends in the extending direction thereof can exactly match the mounting screw holes 41, so that the polygonal cam 20 is fixed from both ends of the mounting hole 25 using screws, respectively, which can be abutted against the inner wall of the mounting hole 25, thereby improving the fixing effect on the polygonal cam 20. To further enhance the fixing effect of the rotating base 40 on the polygon cam 20, a protruding cylinder is disposed at the axial center of the rotating base, and a circular hole is disposed at the axial center of the polygon cam 20, and the circular hole is matched with the cylinder, so that the cylinder fixes the polygon cam 20. The end of the mounting hole 25 facing away from the rotating seat 40 may also be provided with a receiving recess for receiving a screw head of a screw. The screw head of the screw abuts against the accommodation groove, and the fixing action on the polygon cam 20 can be improved.

Referring to fig. 1 and 2, alternatively, the polygon cam 20 is provided with a mounting recess 24, the mounting recess 24 being recessed in a direction approaching the axis of the polygon cam 20 in a radial direction of the polygon cam 20. The mounting recess 24 gives way to the end of the rocker arm 60 near the rotating base 40 when the polygon cam 20 is mounted in the rotating base 40, making it easier to mount the polygon cam 20 in the rotating base 40. During spring machining, the mounting recess 24 may also be used to keep the tool bit as far from the discharge member 70 as possible, at which time additional tool bits may act on the spring wire to yield the additional tool bits. The attachment concave portion 24 may be provided at a plurality of positions on the polygon cam 20, for example, two opposing attachment concave portions 24 are provided on the polygon cam, and convex portions 33 are provided on two opposing sides between the two attachment concave portions 24, and the convex portions 33 on the two opposing sides are similarly provided. The multi-angle cam 20 thus has rotational symmetry along its axis with a period of one hundred eighty degrees. Therefore, the multi-way cam can be matched with the discharging piece only by rotating along one direction, and the spring wire can be continuously processed. Since the cutters used for the multi-angle cam are cutters for bending the spring wire, the capability of cutting the spring wire may not be provided, and the mounting recess 24 may be a relief for other cutter heads having cutting capability, a mounting recess 24 may be the beginning or end of a rotation cycle. However, if the knife for controlling the polygon cam has cutting capability at the same time, the spring can be continuously machined by only periodically arranging the convex portions 33 instead of the mounting concave portions 24 so that the polygon cam can rotate in only one direction.

Referring to fig. 1, optionally, a plurality of rotary seats 40 are provided on the base plate 10, and a cutter mount 50 and a swing arm 60 are provided in one-to-one correspondence with the rotary seats 40. Thus, the multi-angle cam 20 and the common cam can be mixed and applied, and the flexibility of the use of the spring machine is increased. A plurality of the polygon cams 20 may be simultaneously operated. In general, one of the polygon cams 20 may be manufactured with one type of spring, and if other types of springs are to be manufactured, it is necessary to detach the polygon cam 20 from the rotating base 40 and replace it with another one of the polygon cams 20 to start the production of other types of springs. When the spring machine is provided with a plurality of rotating seats 40, different types of polygonal cams 20 can be respectively arranged on the different rotating seats 40 in advance, and during production, the production of different types of springs can be completed only by controlling the different rotating seats 40 to work, so that the frequency of disassembling and assembling the polygonal cams 20 is reduced, and the production efficiency is improved.

The spring wire is a wire-like material, typically steel wire, used in processing springs.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A spring machine, comprising:

a substrate;

the cutter mounting seat is mounted on the substrate;

the rocker arm is rotationally connected to the base plate, one end of the rocker arm is connected with the cutter mounting seat, and the other end of the rocker arm is abutted against the edge of the polygonal cam;

the convex parts are provided with corner pieces, the convex parts are arranged in one-to-one correspondence with the corner pieces, the positions of the corner pieces in the radial direction of the polygonal cam are adjustable, and the corner pieces can protrude out of the convex parts in the radial direction of the polygonal cam; the multi-angle cam is provided with sliding grooves in one-to-one correspondence with the corner pieces, the sliding grooves extend along the radial direction of the multi-angle cam, the corner pieces are provided with sliding convex parts, and the sliding convex parts are embedded in the sliding grooves; the bottom of the sliding groove is provided with a threaded hole, the corner fitting is provided with a screw through hole, the screw through Kong Hengjie is strip-shaped, and the screw through hole extends along the radial direction of the polygonal cam.

2. The spring machine as claimed in claim 1, wherein an edge of an end of the screw through hole remote from the polygonal cam is provided with a receiving recess.

3. The spring machine according to claim 1, wherein the corner fitting is provided with a screw hole in a radial direction of the polygon cam, the screw hole being provided at an end of the corner fitting near an axis of the polygon cam, the screw hole being for mounting an abutment screw, the end of the abutment screw remote from the corner fitting being abutted against the polygon cam after being fitted into the screw hole.

4. A spring machine as claimed in claim 3, wherein said polygonal cam is provided with an abutment for abutment with an end of said abutment screw remote from said corner piece.

5. The spring machine of claim 1 wherein said corner pieces are configured in a plurality of different shapes for each of said corner pieces.

6. The spring machine according to claim 1, wherein said polygonal cam is provided with a mounting hole, and said rotary seat is provided with a mounting screw hole provided corresponding to said mounting hole.

7. The spring machine according to claim 1, wherein the polygon cam is provided with a mounting recess recessed in a direction approaching the axis of the polygon cam in a radial direction of the polygon cam.

8. The spring machine according to claim 1, wherein a plurality of said rotary seats are provided on said base plate, and said cutter mounting seats and said rocker arms are provided in one-to-one correspondence with said rotary seats.