JPH071320A - Burr removing device for press part - Google Patents

Abstract

PURPOSE:To remove burrs in a series of transfer press processes and improve work efficiency by supporting a press part from its bottom, allowing a burr removing brush to abut on the burrs of the press part, and also rotating-the burr removing brush. CONSTITUTION:When an upper die A of a press is lowered, the upper die 6 of a burr removing device 1 is also lowered. Therefore, the lower die 11 of the burr removing device 1 is pressed downward through a press part 9 and lowered while being rotated by the threadedly engaging sections 19 and 20 of a stay section 14. Wire brushes 13 threadedly engaging with the lower die 11 in a spiral state are rotated by the rotation of the lower die 11. As a result, the burrs of the piercing hole section 9c produced in the internal side of the side wall section 9b in the press part 9 are removed. With this constitution employed, burrs can be removed in a series of transfer press process only by building the burr removing device 1 in the last process position of a transfer press, for example.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring device for press parts.

[0002]

2. Description of the Related Art For example, an output shell (hereinafter referred to as a press part) 9 of a converter part for an automobile has a groove 9d, 9d ... And a pierce hole 9c, on a side wall 9b as shown in FIG.
9c ... is formed in a cap structure having a U-shaped cross section in the axial direction. The structure is formed through a pressing process such as a drawing process and a piercing punching process. The piercing punching process is performed from the outside to the inside by using a punch as disclosed in, for example, Japanese Utility Model Application Laid-Open No. 64-68121. Since it is pierced, as shown in FIG.
There is a problem that burrs occur inside the C and 9C parts. In addition, 9a has shown the upper wall part of the press component 9.

[0003]

Conventionally, in order to remove the burrs, a method in which a worker uses a wire brush to scrape off after completion of the press working is adopted, which is extremely inefficient in working and finishes. The accuracy (burr removal accuracy) was also poor.

[0004]

The invention described in each of claims 1 to 4 of the present application was made for the purpose of solving the above-mentioned conventional problems, and is configured as follows. .

(1) Structure of the Invention According to Claim 1 The press-part burrs removing device of the present invention is a press-part burrs removing device for removing burrs of press parts generated by press working in a press working step, A part supporting means for supporting the pressed part after the press working in the up-down direction from below, and a burr removal brush provided on the supporting means so as to be capable of contacting the burred part of the pressed part,
Rotation means for rotating the burrs removal brush is provided.

(2) Structure of the Invention According to Claim 2 In the device for removing burrs of a press part of the present invention, the rotating means in the structure according to the invention of claim 1 is formed in the middle of the part supporting means. It is characterized by comprising a screw mechanism portion for rotation operation and an elastic biasing means for applying a rotation operation force to the screw mechanism portion for rotation operation.

(3) Structure of the Invention According to Claim 3 In the device for removing burrs of a press part according to the present invention, the brush for removing burrs according to the structure of the invention according to claim 1 is:
The pressing means is fixed to the supporting means and is configured to be rotated by the rotating means, and the press component is supported by the upper portion of the supporting means via a ball bearing so as to be relatively rotatable. It is a feature.

(4) Structure of the Invention According to Claim 4 In the deburring device for press parts according to the present invention, the rotating means in the structure according to the invention of claim 1 is provided with a pinion provided in the middle of the supporting means. And a rack section for rotating the pinion and a drive cylinder for driving the rack section.

[0009]

The invention described in each of claims 1 to 4 of the present application has the following operation corresponding to each of the above configurations.

(1) Operation of the invention according to claim 1 With the configuration of the press part burrs removal device of the present invention, in the press parts burrs removal device for removing the burrs of the press parts caused by the press working in the press working step, A part supporting means for supporting the pressed part after the press working in the vertical direction from below, a burring brush provided in the supporting means so as to be capable of contacting the burrs portion of the pressed part, and the burring brush. It is provided with a rotating means for rotating, and the burrs part of the press component supported in the vertical direction by the component supporting means is rotated by a predetermined rotator to remove the burrs removing brush such as a wire brush. It can be removed automatically and efficiently during the process.

(2) Operation of the invention according to claim 2 In the structure of the deburring device for press parts according to the present invention, the rotating means in the structure according to the invention according to claim 1 is:
Claims because it is composed of a rotation actuating screw mechanism portion formed in the middle of the component supporting means and elastic biasing means for applying a rotation actuating force to the rotation actuating screw mechanism portion. The rotating action of the burrs removing brush of the invention described in 1 is effectively realized by the rotation of the rotary screw mechanism by the urging force of the elastic urging means.

(3) Action of the invention according to claim 3 In the structure of the device for removing burrs of press parts of the present invention, the brush for removing burrs in the structure of the invention according to claim 1 is fixed to the supporting means. In addition, the supporting means is configured to be rotated by the rotating means, and the press part is rotatably supported on the upper part of the supporting means via a ball bearing. Relative to the smooth rotation, the efficiency of burring work is improved.

(4) Operation of the invention according to claim 4 In the structure of the deburring device for press parts according to the present invention, the rotating means in the structure according to the invention according to claim 1 is:
The pinion provided in the middle of the supporting means, a rack section for rotating the pinion, and a drive cylinder for driving the rack section, and therefore the claim 1
The rotating action of the burrs removal brush of the described invention is effectively realized by the rotation of the pinion by the rack drive of the drive cylinder.

[0014]

As a result of the above, according to the deburring device for press parts of the present invention, the deburring work can be automatically realized in a series of press working steps such as the final step of the transfer press. Both accuracy is improved.

[0015]

【Example】

(1) First Embodiment FIGS. 1 to 3 show the configuration of a deburring device for press parts according to a first embodiment of the present invention.

In the figure, reference numeral 1 indicates the entire burring device for the press parts, and the burring device 1 is, for example, an upper die holder 2 for the burring device which is fixed to the upper die A of the transfer press device. An upper die 6 which is held in the tubular portion 2a below the upper die holder 2 so as to be able to move up and down through a vertical sliding guide member 8; and the upper die 6 is elastically supported through the rod portion 5a. Gas spring 5 and cap-shaped press part (work) 9 as shown in FIG. 6 fitted in the part holder groove 6b of the upper die 6 via the rubber member 7.
And the ball bearings 10, 1 inside the press part 9.
A cylindrical lower die (work support member) 11 that is fitted so as to be rotatable relative to each other and supports the press component 9 from below, and a circumferential direction on the outer peripheral portion of the lower die 11 Wire brushes 13, 13 ...
A male screw portion 20 provided in the middle of the lower support portion 14 of the lower mold 11, and a flange-shaped lower end portion 21 of the support portion 14 of the lower mold 11 to the balls 22a, 22a and the support plate 2.
A first support spring 23 having a large urging force for elastically supporting the upper side so as to be vertically movable via 2, and a lower die holder provided below the upper die holder 2 in correspondence with the upper die holder 2. 3 and the second supporting springs 17, 17 which are located on the inner and outer peripheral portions of the upper cylindrical body portion 3a of the lower die holder 3.
Upper die supporting members 16 and 16 which are elastically supported in an upward and downward direction by a vertical direction, a top plate 18 provided on the upper surface of the cylindrical body portion 3a of the lower die holder 3 in a horizontal direction, and the lower die. Mold holder 3 A cylindrical pillar guide member 24 provided on the outer periphery of the lower mold pillar portion 14 and the first support spring 23 in the cylindrical body portion 3a, and an upper portion 2 of the pillar guide member 24.
4a and the central portion 18a of the top plate 18, and is formed of a female screw groove portion 19 into which the male screw portion 20 of the upper die strut portion 14 is threadably inserted so as to be relatively rotatable.

The upper die supporting members 16, 16 ...
Is in a state of being urged upward from the lower side through the work lifter / knockout member 15 provided at the lower end of the cylindrical body portion of the upper die 6 by the elastic force of the second support springs 17, 17 ... The upper mold 6 is supported in a floating state. The second support springs 17, 17 ... Are engaged with the lower flange portion 16a of the upper die support member 16.

By the way, the wire brushes 13, 13 ... Provided on the lower mold 11 are composed of a wire portion 13a and a main body portion 13b, as shown in FIGS.
The main body portion 13b is fitted and retained in the wire brush fitting recesses 12, 12 formed in the outer periphery of the cylindrical body portion of the lower die 11, and the wire portion 13a is held and fixed. The piercing hole 9c on the inner surface of the side wall 9b of 9 is brought into contact with the burring portion.

Therefore, in the above configuration, when the output shell of the converter component such as the illustrated press component (work) is pressed, for example, in the final step of the transfer press, when the mold device having the above structure is installed, By such an action, the burrs in the pierce hole 9c of the press part 9 can be automatically removed in a continuous operation in the pressing step of the transfer press.

That is, first, in a non-pressed state in which the upper die A of the transfer press device is raised, the upper die 6 and the upper die holder 2 of the burr removing device 1 provided in the final step are also raised. Therefore, the lower die 11 to which the press part 9 is fitted is lifted to the maximum raised position by rotating the male screw portion 20 of the lower die strut portion 14 by the strong upward elastic biasing force of the first support spring 23. Has been.

Next, when the upper die A of the transfer press device is moved down from the above state to the pressing step, the lower die 11 of the burring device 1 is lowered and the lower die 11 of the lower die 11 is pressed. It is pressed downwards through and is lowered while rotating by the action of the screwing portions (20, 19) of the column portion 14.

Then, the wire brushes 13 and 13 fitted in a spline state by the rotation of the lower mold 11.
.. also rotate and scrape off the burrs of the pierce hole 9c that is generated inside the side wall 9b of the press part 9 in the state shown in FIGS. Therefore, in this configuration, by simply incorporating the burring device 1 having the above-mentioned mold structure at the final process position of the transfer pressing device, it is possible to realize an automatic burring work in a series of transfer pressing processes. The efficiency is greatly improved. In addition, in the press part 9 when the upper die 6 descends, the upper die 6 itself is elastically supported by the gas spring 5 with a damping action, and the rubber member 10 is provided on the upper wall 9a side. A holding state with a high degree of close contact is realized so that the sliding contact does not occur due to the contact with. On the other hand, the rear surface side of the upper wall portion 9a is configured to have a high relative rotational performance with the upper surface 11a side of the lower mold 11 via the ball bearings 10, 10 ... As described above. ing. Therefore,
The rotation of the wire brushes 13, 13, ... When the lower mold 11 descends is smoothly performed, and there is no fear of damaging the press part 9.

(2) Second Embodiment Next, FIG. 4 and FIG. 5 show the structure of a deburring device for press parts according to a second embodiment of the present invention.

In the device, the wire brushes 13, 1 are
The rotation of the lower mold 11 holding 3 ... Is replaced with the drive by the screw mechanism utilizing the lowering motion of the lower mold 11 as in the first embodiment, and the rack 31 and the pinion 30 and the rack 3 are replaced.
Drive cylinder (air cylinder) 32 that drives 1 in the axial direction
It is characterized by being realized by.

That is, in this structure, the support 14 of the lower mold 11 is extended to the inner bottom of the cylindrical body 3a of the lower mold holder 3, and the lower end 14a thereof is ball bearings 27, 27 ...
The pinion 30 is fixed in the middle of the column 14, and the tooth 31c of the rack 31 is engaged with the pinion 30. And rack 3
One end 31a of the No. 1 is held slidably in the axial direction by a slide guide 33, and the other end 31b is connected to the tip of an operating rod 32a of a drive cylinder 32.

Therefore, when the drive cylinder 32 drives the rack 31 in the left-right direction as shown by the arrow in FIG. 5, the pinion 30 rotates correspondingly and the same as in the case of the first embodiment. Wire brush 13,13 ・
・ Rotate to remove the burrs on the pierce hole 9c of the press part 9.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the structure of a deburring device for press parts according to a first embodiment of the present invention.

FIG. 2 is a horizontal sectional view of a main part of the device.

FIG. 3 is a partially cutaway vertical sectional view of the main part.

FIG. 4 is a sectional view showing the structure of a deburring device for press parts according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part of the same device.

FIG. 6 is a perspective view showing an example of a press part.

FIG. 7 is a sectional view of a main part of the press part.

[Explanation of symbols]

2 is an upper die holder, 3 is a lower die holder 3, 5 is a gas spring, 6 is an upper die, 7 is a rubber member, 9 is a press part,
9c is a pierce hole portion, 10 is a ball bearing, 11 is a lower die, 13 is a wire brush, 18 is a top plate, 19 is a female screw groove, 20 is a male screw portion, 23 is a first support spring, 3
0 is a pinion, 31 is a rack, and 32 is a drive cylinder.

Claims (4)

[Claims] 1. A deburring device for a pressed part, which removes a burred part of a pressed part caused by pressing in a pressing step, and a part support means for supporting the pressed part after the pressing process in a vertical direction from below. A deburring device for a pressed part, comprising: a deburring brush provided on the supporting means so as to be capable of contacting the deburring part of the pressed part; and a rotating means for rotating the deburring brush. . 2. The rotation means comprises a rotation actuating screw mechanism portion formed in the middle of the component supporting means and elastic biasing means for applying a rotation actuating force to the rotation actuating screw mechanism portion. The deburring device for a pressed part according to claim 1, wherein 3. The burrs removing brush is configured to be fixed to the supporting means and to rotate the supporting means by the rotating means, and the press part above the supporting means via a ball bearing. The deburring device for press parts according to claim 1, wherein the deburring device is supported so as to be rotatable relative to each other. 4. The press part according to claim 1, wherein the rotating means includes a pinion provided in the middle of the supporting means, a rack portion for rotating the pinion, and a drive cylinder for driving the rack portion. Burr removal device.