JPH08141680A - Tool chip holding jig for spring manufacturing device - Google Patents

Abstract

PURPOSE: To easily execute the fine adjustment of the tip position of a tool chip. CONSTITUTION: A tool chip holding jig is provided with a holding tool body 17 for fixing a tool fixing slide 11, a sliding body 18 being slidable while holding parallel state to the tool fixing slide 11 in the parallel direction to the wall 3 of a machine frame 2 in the holding tool body 17 and also, fixing to a desired position and a tool chip fixing body 19 being shakable in the direction crossing at the right angle to the wall 3 of the machine frame 2 and fixing to a desired position in this sliding body 18 and also, being fittable/removable to the tool chip 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring manufacturing apparatus (in this specification, a spring manufacturing apparatus means a spring manufacturing machine for manufacturing a spring as a finished product, a spring manufacturing machine for manufacturing a spring as a semi-finished product, and The present invention relates to a tool tip holder for a semi-finished spring processing machine [so-called a secondary processing machine] that performs a predetermined process on a spring that is a semi-finished product to obtain a finished product.

[0002]

2. Description of the Related Art The following is known as a conventional spring manufacturing apparatus. That is, a machine frame having a vertical front wall,
A wire rod processing space formed in the center of the front wall of this machine frame, a wire guide fixed to the front wall that guides the wire rod sent toward this wire rod processing space, and a wire rod processing space of this wire guide. At least a pair of wire feed rollers rotatably provided on the front wall on the opposite side and feeding the wire material while sandwiching the wire material, and provided on the front wall so as to be able to move back and forth toward the wire material processing space, and to which a predetermined tool is attached. Spring making machines with required tool mounting slides are known. Then, a tool mounting member is screwed into a screw hole formed in the tool mounting slide on the front surface of the tool mounting slide through two vertically elongated slots formed so as to penetrate the tool mounting slide in the front-rear direction. By this, it can be mounted vertically adjustable,
On the upper surface of the tool mounting member, the tool is screwed into the screw holes formed in the tool mounting member through the two long holes formed in the front-rear direction that are formed so as to penetrate therethrough in the vertical direction. The position was adjustable. In the above description, the vertical position and front-back position of the tip of the tool with respect to the reference position of the wire rod processing space are adjusted as follows. That is, the two bolts are loosened, the tool attachment member is slid up and down with respect to the tool attachment slide, and then the two bolts are tightened again, and the two bolts are loosened and the tool is attached to the tool attachment member. This was done by sliding back and forth and then tightening the two bolts again.

[0003]

Disadvantages of the Prior Art The conventional spring manufacturing apparatus has the following drawbacks. That is, since the bolt has a structure in which the bolt is screwed into the screw hole through the long hole, there is a degree of freedom that the tool mounting member can move in any direction within the contact surface with respect to the tool mounting slide when the bolt is loosened. ,Also,
Similarly, there is a degree of freedom that the tool can move in any direction within its abutting surface with respect to the tool mounting member, and as a result, it is difficult to finely adjust the vertical position and front-back position of the tip of the tool. .

[0004]

[Means for Solving the Disadvantages] The present invention employs the following means in order to eliminate the above disadvantages. The present invention
A holder main body that is attached to the tool attachment slide, and is slidable while being held parallel to the tool attachment slide in a direction parallel to the wall of the machine frame on the holder main body so that it can be fixed at a desired position. And a tool tip mounting body in which the tool tip is attachable / detachable to the slide body so as to be swingable in the direction orthogonal to the wall of the machine frame and fixed at a desired position. I have.

[0005]

The present invention has the following functions. The position of the tip of the tool tip can be adjusted by adjusting the position of the slide body that slides only in the direction of the machine frame wall and the position of the tool tip mounting body that swings only in the direction orthogonal to the machine frame wall. , It is easy to fine-tune the tip position of the tool tip.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments with reference to the drawings. In this specification, the front means the front side of FIG. 1, the rear means the back side, the left means the left side of FIG. 1, and the right means the right side of FIG.

FIG. 1 is a schematic front view of the spring manufacturing machine 1. The spring manufacturing machine 1 is fed to a machine frame 2 having a vertical front wall 3, a wire processing space 5 formed in the center of the front wall 3 of the machine frame 2, and the wire processing space 5. A wire guide 6 fixed to the front wall 3 for guiding the wire material
And at least a pair of wire feed rollers 7 which are rotatably provided on the front wall 3 on the side opposite to the wire rod processing space 5 of the wire guide 6 and which feeds out the wire rod while pinching the wire rod and the wire rod processing space 5 Bending die slide 8 facing the wire guide 6 and provided on the front wall 3 so as to move forward and backward toward the wire rod processing space 5, and a required slide provided on the front wall 3 so as to move forward and backward toward the wire rod processing space 5. It has a tool mounting slide 11 of a book. The bending die slide 8 is provided with a main body 8a provided on the front wall 3 so as to be movable back and forth toward the wire processing space 5, and provided on the main body 8a so as to swing parallel to the front wall 3 (left and right). First swing piece 8b
And the first rocking piece 8b meshes with the gear mechanism, and
The main body 8a has a second swing piece 8c provided so as to swing in parallel (left and right) with the front wall 3. A bending die is attached to the first swing piece 8b with or without a tool tip holder 16 described below. The swing piece 8
b is rocked at a predetermined time by rocking the second rocking piece 8c by a known actuating device.

The bending die slide 8 (main body 8a)
The tool mounting slide 11 is biased by a spring (not shown) so as to be separated from the wire rod processing space 5. The bending die slide 8 (main body 8a) and the tool mounting slide 11 are made to be projected toward the wire rod processing space 5 at a predetermined time by an operating device (not shown) including a cam or the like, and force from the operating device is applied. When the force is not applied, the wire rod retracts from the wire rod processing space 5 by the force of a spring (not shown) or the like.

Hereinafter, based on FIGS. 2 to 7, the wire rod processing space 5 of the left tool mounting slide 11 that slides horizontally
The tool tip holder 16 attached to the side end will be described. The tool tip holder 16 has a holder main body 17 attached to the tool attachment slide 11, and an upper and lower part of the holder main body 17 (while maintaining a parallel state to the tool attachment slide 11 in a direction parallel to the front wall 3). ) Sliding body 1 which is slidable and fixed at a desired position
8 and a tool tip mounting body 19 which is capable of swinging back and forth on the sliding body 18 and is fixed at a desired position, and a tool tip 20 is detachable.

The holder main body 17 has a U-shaped cross section having a front wall 25 and upper and lower walls 26 which are connected to the upper and lower edges of the front wall 25. The holes 27 are formed, and the holder main body 17 is attached to the tool attachment slide 11 by screwing the bolts 28 into the screw holes 29 formed in the tool attachment slide 11 through the through holes 27. The rear portions of the upper and lower walls 26 are designed to hold the tool mounting slide 11.

The sliding body 18 has a base 34 whose front and rear movements are restricted by the front wall 25 of the holder body 17 and the tool attachment slide 11 with the holder body 17 fixed to the tool attachment slide 11. The tool mounting slide 11 is provided with a tip portion 35 that is continuous with the base portion 34 and that abuts on the end surface of the wire rod processing space 5.

A screw hole 36 is formed through the base 34 in the vertical direction, and the bolt 3 is inserted into the screw hole 36 from above and below.
7 are screw-fitted through through holes 38 formed in the upper and lower walls 26. The base portion 34 is formed with a long hole 39 which is long in the vertical direction so that the base portion 34 does not collide with or interfere with the bolt 28 when the base portion 34 moves up and down.
With such a configuration, by loosening one bolt 37 and tightening the other bolt 37, the sliding member 18
The sliding member 18 can be fixed so as not to move at the same time as adjusting the vertical position of the sliding member 18. In addition, a protrusion 4 that is long in the vertical direction is formed on the surface of the base 34 that faces the tool mounting slide 11.
0 is provided, and this protrusion 40 is used for the tool mounting slide 11
It is fitted in the groove 41 formed in the. With the above-described configuration, the sliding body 18 can move only vertically with respect to the tool mounting slide 11 and the holder main body 17.

A recess 43 is formed at the front end 35 and is open forward and toward the wire processing space 5. By forming this recess 43, a rear wall 44 and upper and lower walls 45 are formed at the front end 35. Has been done. The base portion 47 of the tool tip mounting body 19 is fitted in the recess 43 in a state with no play in the vertical direction, and the base portion 47 and the upper and lower walls 45 are vertically penetrated and have a countersunk portion. A hole 50 is formed, a pivot 51 having a head is fitted into the through hole 50, and a screw hole 52 formed from the end of the shaft portion of the pivot 51.
A screw 53 is screwed into the. With such a configuration, the tool tip attachment body 19 can swing back and forth around the pivot 51. Further, the rear wall 44 is formed with long slits 54 on the left and right. As a result, after adjusting the position of the tool tip mounting body 19, if the screw 53 which has been loosened until now is tightened, the rear wall 44 bends, and as a result, the tool tip mounting body 19 is clamped and fixed by the upper and lower walls 45. It

Further, the base portion 47 is formed with a recess 56 which opens toward the rear wall 44, and the spring 5 is formed in the recess 56.
7 is stored in a compressed state. Due to the action of the spring 57, the tool tip mounting body 19 is urged to swing counterclockwise in FIG. Front wall 2 of the holder body 17
5, a screw hole 58 penetrating forward and backward is formed in a portion facing the base portion 47, and a bolt 59 to which a lock nut 60 is screwed is screwed into the screw hole 58. By pressing the bolt 59 against the tool tip mount 19, the tool tip mount 19 can be swung clockwise in FIG. 5 against the spring 57. Further, a screw hole 62 penetrating in the front-rear direction is formed in the base portion 47, and a bolt 63 having a lock nut 64 screwed therein is screwed into the screw hole 62. By pressing the bolt 63 against the rear wall 44, the tool tip mounting body 19 is fixed. With the above configuration,
After adjusting the front-back position of the tool tip mounting body 19, the tool tip mounting body 19 can be firmly fixed to the sliding body 18 by tightening the bolts 63 and the screws 53. The tool tip mounting body 19
At the time of adjusting the front-back position, the tip of the tool tip 20 makes an arc motion, but since the movement amount is small, it can be regarded as a front-back linear motion.

The tip portion 48 of the tool tip mounting body 19
Is formed with a recess 66 that is open to the front side and the wire processing space 5 side, and the tool tip 20 is fitted into this recess 66,
The tool tip 20 is detachably fixed to the tool tip attachment body 19 by screwing a screw 68 into a screw hole 69 formed in the tip portion 48 through a through hole 67 formed in the tool tip 20.

[0016]

[Modifications, etc.] Modifications will be described below. (1) In the spring manufacturing machine 1, the wall on which the tool mounting slide 11 is slidably mounted may be horizontal. (2) The tool tip holder 16 to which the separate tool tip 20 is attached is also attached to the tool attachment slide 11 other than the above. (3) The tools include all of the wire rod processing tools such as bending dies, forming tools, cutting tools, and cutting receiving tools that are attached to the spring manufacturing apparatus.

[0017]

The present invention has the following effects due to the above-described structure. According to the invention of claim 1, the tool is adjusted by adjusting the positions of the slide body that slides only in the direction along the wall of the machine frame and the tool tip attachment body that swings only in the direction orthogonal to the wall of the machine frame. Since the position of the tip of the tip can be adjusted, it is easy to finely adjust the position of the tip of the tool tip. According to the invention of claim 1, since the tool tip only needs to be fixed to the tool tip mounting body, that is, unlike the conventional case, the tool tip does not need to have a long hole, so that the tool tip can be downsized. As a result, the tool tip can be manufactured at low cost. Therefore, if the tool tip is damaged, the inexpensive tool tip can be replaced, and the running cost can be kept low.

[Brief description of drawings]

FIG. 1 is a simplified front view for explaining the outline of a spring manufacturing device.

FIG. 2 is a front view of an essential part showing an embodiment of the present invention.

3 is an enlarged end view taken along line III-III in FIG.

FIG. 4 is an enlarged view of part A of FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 1 spring manufacturing machine 2 machine frame 3 front wall 5 wire rod processing space 11 tool mounting slide 16 tool tip holder 17 holder body 18 sliding body 19 tool tip mounting body 20 tool tip

Claims (1)

[Claims] 1. A tool tip holder that is attached to a tool attachment slide of a spring manufacturing apparatus, which is provided so as to be movable back and forth toward a wire processing space along a vertical or horizontal wall of a machine frame. The holder body attached to the slide is slidable and fixed at a desired position while maintaining the parallel state to the tool attachment slide in a direction parallel to the wall of the machine frame on the holder body. Spring having a sliding body and a tool tip mounting body that is swingable in the sliding body in a direction orthogonal to the wall of the machine frame and is fixed at a desired position and has a tool tip detachable. Tool tip holder for manufacturing equipment.