JP4475893B2 - Spring making machine - Google Patents

Description

  The present invention relates to a spring manufacturing machine.

Conventionally, the following are known as this type of spring manufacturing machine.
The wire is sent from the final wire guide to the wire processing space, and the wire sent to or sent to the wire processing space is subjected to predetermined processing with a tool that protrudes or protrudes into the wire processing space to produce a spring. In the spring manufacturing machine, the wire feeding unit is movable in a direction parallel to the center line of the wire, or is movable in a direction parallel to the center line of the wire and is orthogonal to the center line of the wire. The wire rod feeding unit is horizontally movable in the direction, and the wire rod feeding unit is provided in the casing, the final wire rod guide for guiding the wire rod fed toward the wire rod machining space, and the wire rod rotatably provided in the casing. It is known to have at least a pair of wire feed rollers that feed out toward the final wire guide while clamping .
US Patent No. 6,185,981 JP 2003-33,839 A

The conventional spring manufacturing machine has the following drawbacks.
Since the conventional wire rod feeding unit does not move up and down, the degree of freedom of position adjustment of the wire rod feeding unit (exit end of the final wire rod guide) is limited.

(1) spring manufacturing machine according to claim 1 has a front wall that having a through-hole penetrating in the longitudinal direction, so as to go between the wire processing air provided in front of the through hole, the front wall of comprising at least one tool disposed on the front side, and at least one cutter provided on the front side of the front wall as towards the wire processing space, a wire feeding unit provided in the rear of the front wall In the spring manufacturing machine, the wire rod feeding unit has a final wire rod guide that guides the wire rod to the wire rod processing space, and the front wire rod guide is opposed to the through hole so as to face the front-rear direction, the left-right direction, and the vertical direction. It is characterized by being able to move to .
(2) spring manufacturing machine according to claim 2, and Dodai before and after mounted for longitudinal movement in the rear of the front wall, and a vertically movable platform disposed vertically movably in the back and forth movement stage, the upper and lower and a horizontal movement stage arranged to freely move laterally in Dodai, characterized in that the wire feed unit is provided on the lateral movement stage.

The present invention has the following effects by the configuration as described above.
(1) According to the first aspect of the invention, the position of the outlet end (wire feed unit) of the final wire guide can be easily changed in the front-rear / left-right direction, and further in the up-down direction. For example, the position of the exit end of the final wire guide can be easily changed with respect to the tool, so the position of the exit end of the final wire guide can be moved as necessary to improve the spring machining performance of the spring making machine It can be made.
(2) According to the invention of claim 2, the position of the wire rod feeding unit (final wire rod guide) can be changed smoothly by the movement of the front and rear moving base, the vertical moving base and the left and right moving base.

Embodiments of the present invention will be described below.
In this description, “front” refers to the front side of FIG. 1, “back” refers to the back side, “left” refers to the left side of FIG. 1, and “right” refers to the right side of FIG.
The machine frame 2 of the spring manufacturing machine 1 includes a lower base 3, an upper base 4 provided on the upper side of the lower base 3, and a vertical front provided on the front portion of the upper base 4. And a wall 5. A through hole 9 penetrating in the front-rear direction is formed in the central portion of the front wall 5.

  A wire processing space 11 is formed in front of the through hole 9. Then, at least two, in the present embodiment, eight well-known tool mounting slides (not shown) on the front wall 5 can advance and retreat with respect to the wire processing space 11 (advance and retreat along the one-dot chain line L in FIG. 1). It is provided so as to be free. The tool mounting slide is actuated by a known driving device (not shown). Also, each tool mounting slide is attached with a known tool (not shown) such as a bending die or a forming tool and a cutter (not shown) so as to go to the wire processing space 11.

  A pair of left and right guide rails 14 whose longitudinal direction is directed in the front-rear direction are provided on the upper base 4, and a front / rear moving table 15 is provided along the guide rails 14 so as to be movable back and forth. Is movable back and forth by an operating device 17 described in detail below.

  The actuating device 17 includes a motor 19 having a rotating shaft 20 (having its axis oriented in the vertical direction) fixed to the rear portion of the upper base 4 via a bracket 18 and the rotating shaft. A rotary plate 21 fixed to the rotary plate 21, an eccentric pin 22 provided with the axis centered on the rotary plate 21 in the vertical direction, a connecting rod 23 pivotally attached to the eccentric pin 22, and front and rear The moving base 15 has a connecting pin 24 provided with the other end of the connecting rod 23 pivotally attached so that the axis is directed in the vertical direction. The rotating shaft 20 and the eccentric pin 22 are arranged in the front-rear direction.

  A pair of left and right guide rails 27 whose longitudinal direction is directed in the vertical direction are provided on the front surface of the vertical wall 16 of the front and rear moving table 15, and a vertical moving table 28 is provided along these guide rails 27 so as to freely move up and down. The vertical movement table 28 is movable up and down by an operating device 29 described in detail below. Since the operating device 29 is the same as the operating device 17, detailed description is omitted and reference numerals and members are listed. Reference numeral 31 denotes a motor provided on the front wall 16, 32 denotes a rotating shaft, 33 denotes a rotating plate, 34 denotes an eccentric pin, 35 denotes a connecting rod, and 36 denotes a connecting pin.

  A pair of upper and lower guide rails 38 whose longitudinal direction is directed in the left-right direction is provided on the front surface of the up-and-down moving table 28, and a left-right moving table 39 is provided so as to be movable left and right along these guide rails 38. Is movable left and right by an operating device 41 described in detail below. Since the operating device 41 is the same as the operating device 17, detailed description is omitted and reference numerals and members are listed. Reference numeral 43 denotes a motor provided on the vertical movement table 28, 44 denotes a rotating shaft, 45 denotes a rotating plate, 46 denotes an eccentric pin, 47 denotes a connecting rod, and 48 denotes a connecting pin.

  A wire rod feeding unit 51 is provided on the left / right moving base 39. The wire rod feeding unit 51 includes a casing 52 fixed to the left / right moving base 39 and a wire rod (not shown) that is provided in the casing 52 so as to face the through hole 9 and is fed forward from the rear toward the wire rod machining space 11. (Not shown) (in FIG. 2 and FIG. 3, the center line of the wire is indicated by “W”). A final wire guide 53 having a wire passage (not shown) for guiding the wire and a casing 52 are rotatable. In this embodiment, there are provided two sets of wire feed rollers 54 (the axis is directed in the left-right direction) that feeds the final wire guide 53 while pinching the wire. . The wire feeding roller 54 rotates so as to feed the wire toward the final wire guide 53 by the operation of a known drive device (not shown) provided in the casing 52. As is well known, an annular groove (not shown) is formed on the outer peripheral surface of the wire rod feed roller 54, and a wire rod path is formed by the annular groove (not shown) of the pair of wire rod feed rollers 54 in contact with each other.

An auxiliary wire guide 55 having a wire passage (not shown) is provided in the casing 52 so as to be positioned between the wire feed roller 54 and the wire feed roller 54 arranged in front and rear and behind the wire feed roller 54 at the rearmost part. It has been.
As is well known, a wire formed by a center line of a wire passage (not shown) of the final wire guide 53 and an annular groove (not shown) formed on the outer peripheral surface of the wire feed roller 54 that abuts each other. The center line of the passage and the center line of the wire passage (not shown) of the auxiliary wire guide 55 are arranged in a straight line.

  Since the wire feed unit 51 can be easily changed in the front-rear direction, the left-right direction, and the up-down direction, before the operation of the spring manufacturing machine 1, the tool end of the outlet end 53a of the final wire guide 53 (wire feed unit 51) After adjusting the position with respect to the cutter, the wire feeding unit 51 is fixed. After that, as in the conventional spring manufacturing machine, a tool cutter provided on a tool mounting slide (not shown) is moved to perform predetermined processing to manufacture a spring.

A description will be given below of modifications and the like.
(1) In the present invention, the wire feeding unit 51 is movable back and forth, left and right, and up and down, that is, the position of the outlet end 53a of the final wire guide 53 is positioned with respect to the tool cutter. Since it can be changed, the tool cutter may be fixed to the front wall 5 of the machine frame 2. In other words, in the past, the final wire guide 53 was fixed at a fixed position during manufacturing of the spring, and the tool / cutter provided on the tool mounting slide was moved to perform predetermined processing. The positional relationship between the tool cutter and the tool cutter can be adjusted by moving either the final wire guide 53 or the tool cutter. From this point of view, the present invention moves the position of the final wire guide 53. Therefore, if the position of the final wire guide 53 is moved during spring manufacture, all or some of the tools are used. The cutter may be fixed to the front wall 5 of the machine frame 2. However, as described above, in general, after the position of the final wire guide 53 is adjusted, the final wire guide 53 is fixed at a fixed position during the manufacture of the spring and provided on the tool mounting slide, as in the prior art. The predetermined tool / cutter is moved to perform predetermined processing.
(2) The tool includes all known tools including a rotating spindle for bending the wire.
(3) The final wire guide 53 includes all known final wire guides.
(4) Actuator 17, 29, 41 is not limited to the thing of an embodiment.
(5) Needless to say, the tool mounting slide, the front wall 5 and the like are made so as not to obstruct the movement of the wire feed unit 51 in the set range.

  The present invention can be widely used for processing wire.

It is a simplified front view showing an embodiment of the present invention. It is the II-II line expanded sectional view of FIG. It is the III-III line expanded sectional view of FIG. It is the IV-IV sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spring manufacturing machine 2 Machine frame 5 Front wall 9 Through-hole 11 Wire material processing space 15 Front-back moving table 28 Vertical moving table 39 Left-right moving table 51 Wire rod feeding unit 52 Casing 53 Final wire rod guide 53a Outlet end 54 Wire rod feeding roller 55 Auxiliary wire rod guide

Claims (2)

A front wall that having a through-hole penetrating in the longitudinal direction, as toward the wire processing spatial provided in front of the through hole, and at least one tool provided on the front side of the front wall, the wire In a spring manufacturing machine comprising at least one cutter provided on the front side of the front wall so as to face the processing space, and a wire rod feeding unit provided on the rear side of the front wall ,
The wire rod feeding unit has a final wire rod guide for guiding the wire rod to the wire rod processing space, and the final wire rod guide is opposed to the through hole and can move in the front-rear direction, the left-right direction, and the up-down direction. What you can do
A spring manufacturing machine characterized by A back- and- forth moving table provided to be movable back and forth behind the front wall ;
A vertical movement table provided vertically movably to the forward-rearward movement stage,
And a horizontal movement stage arranged to freely move laterally on the vertical movement table,
Said wire feed unit is provided on the lateral movement stage
The spring manufacturing machine according to claim 1.

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