JPH0329093Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a burnishing surface processing device, and particularly to a burnishing surface processing device that can smooth and continuously process the surfaces of a cylindrical shaft and a cylinder.

The purpose of this is to smooth the surface by burnishing and increase the surface hardness by work hardening, so that a machined surface with excellent durability can be obtained.

Another object of the present invention is to provide an optimal surface processing device for manufacturing tape guide columns. In other words, in order to guide the tape, the surface of the tape guide pillar must be smooth so as not to damage the tape. However, if the entire surface is smoothed, the guided tape will stick tightly to the circumferential surface, creating resistance to tape running and impairing the running stability of the tape. Therefore, the object of the present invention is to create an optimal surface for forming the peripheral surface of a tape guide column, which can smooth the surface, ensure stability of tape running, and improve the hardness of the peripheral surface.

Furthermore, another object is to enable the above-mentioned processing to be carried out automatically and continuously.

In order to achieve the above object, this invention uses two feed rolls in a burnishing processing device.
The shafts are mounted and held so as to face each other with a gap narrower than the diameter of the cylindrical or cylindrical workpiece, and
Each feed roll is provided so as to be inclined at an appropriate set angle in opposite directions with respect to the horizontal plane, and a drive mechanism is connected to the feed roll, and a drive mechanism is connected to the feed roll, and a drive mechanism is connected to the feed roll, and the feed roll is provided with a A moving means is provided for moving the workpiece, which is formed into a wrap-like shape so that the line formed by the surface is a hyperbola and is placed between the feed rolls, in a substantially straight line in the axial direction while rotating along the feed rolls; The intersection position of the feed rolls in
Alternatively, in the vicinity thereof and on the opposite side of the feed roll with respect to the workpiece, a burnishing roll is disposed that cooperates with the feed roll to press the circumferential surface of the workpiece and can adjust the amount of pressure as appropriate, The burnishing roll is formed so that the diameter of the edge of the burnishing roll gradually decreases as it goes outward in order to make it easier to insert the workpiece into the workpiece. , it is characterized in that it is formed so as to continuously perform burnishing while rotating and substantially linearly moving between the feed roll and the burnishing roll in order to work and harden the feed roll.

Hereinafter, embodiments of this invention will be described based on the drawings.

In the figure, numeral 1 indicates a cylindrical feed roll, and a pair of them are provided. These pair of feed rolls 1 face each other with a gap narrower than the diameter of the cylindrical or cylindrical workpiece A in order to form a passage path for the workpiece A in a substantially straight or gently curved shape. It has been placed.

In reality, instead of the feed roll 1 having a cylindrical shape as shown in FIG. 1, a one having a wrapper shape as a whole as shown in FIG. 4 or FIG. 5 is used. That is, the entire feed roll 1 is formed into a wrap shape such that the line formed by the peripheral surface 6 of the feed roll 1 in a cross section having the center line of the feed roll 1 is a hyperbola. As described above, the feed rolls 1 are arranged opposite to each other with a gap narrower than the diameter of the cylindrical or cylindrical workpiece A in order to form a passage path for the workpiece A in a substantially straight line, and are arranged in a pouch-like manner. The feed rolls 1 are mounted on a machine frame or the like so as to be inclined in opposite directions with respect to a horizontal plane.

Then, between the feed rolls 1 and 1, in reality, the feed roll 1 is connected to the workpiece A.
The workpiece A is placed on top of the gap which is placed opposite to the other with a gap narrower than the diameter of . In other words, workpiece A
The workpiece A is placed on the gap between the feed rolls 1 so that the center of the feed rolls 1 is located above the center of the feed rolls 1. Then, the workpiece A placed on this gap,
In order to move the workpiece A substantially linearly in the axial direction along the feed roll 1 while rotating it, a moving means formed in the shape of a wrapper is provided as described above. The movement component force in the axial direction obtained by rotating the workpiece A between the two is defined as the self-propelling force. That is, in the case of the bundle-shaped feed roll 1, the self-propelling force of the workpiece A obtained from the shape of the circumferential surface is used as a moving means.

To explain this moving means in more detail, as shown in FIG. 5, the two feed rolls 1 placed opposite each other have a gap narrower than the diameter of the cylindrical or cylindrical workpiece A, as described above. The feed rolls 1 are disposed facing each other with the feed rolls 1 interposed therebetween, and the bundle-shaped feed rolls 1 are arranged so as to be inclined in mutually opposite directions with respect to the horizontal plane.

Therefore, the workpiece A placed between the feed rolls 1 tries to tilt by the inclination angle of one feed roll 1, but the workpiece A is tilted by the inclination angle of the other feed roll 1. It also tries to imitate Feed Roll 1. Thereby, the workpiece A remains substantially horizontal. However, since the feed roll itself is tilted, if the feed roll 1 is rotated, a rotational force in an oblique direction will be transmitted to the workpiece A.

Then, the workpieces A are successively placed on this narrow gap in the axial direction of the feed roll 1. First, even if the feed roll 1 is tilted in opposite directions with respect to the horizontal plane, the circumferential surface 6 is formed in an overall wrap shape with a hyperbola in cross section, so the passage path of the workpiece A is approximately It becomes a straight line. In addition, since the two feed rolls 1 are provided so as to be inclined at appropriate set angles in mutually opposite directions with respect to the horizontal plane, when both are rotated in the same direction as shown in the figure, as shown in FIG. , the axes of the feed rolls 1 are different from the horizontal in the cross-section of the feeding side of the workpiece A, and as shown by the arrow in FIG. A feeding force is applied, thereby moving the workpiece A forward in a substantially straight line.

At or near the intersection of the feed rolls 1 in the axial direction of the feed rolls 1, or at the midpoint of the feed rolls 1 in the illustrated case,
As shown in FIG. 7, since the workpiece A is held between the feed rolls 1 and the burnishing roll 2, rotation and self-propelling force are applied to the workpiece A more strongly and reliably. In other words, if there is no presser from above like the feeding girder, the workpiece A
If the workpiece A is light, it may slip between the workpiece A and the feed roll 1, so the rotation of the workpiece A in cooperation with the feed roll 1 is somewhat unreliable, but the workpiece A called the burnishing roll 2
Since there is a presser foot, rotation and self-propelling force can be applied to the workpiece A more strongly and reliably.

The second half of feed roll 1, that is, workpiece A
As shown in FIG. 8, the axes of the feed rolls 1 are different from each other horizontally, although they are opposite to the feeder, as shown in FIG. A diagonally forward feeding force acts together with the rotational force, and the feeding force causes the workpiece A to move forward in a substantially straight line, similar to the above-mentioned feeding gage.

In this way, workpiece A is transferred to feed roll 1
The burnishing roll 2, which will be described later, is disposed approximately in the middle of the feed roll 1.

On the other hand, the feed roll 1 is supported by a double-sided bearing or a cantilever bearing. Further, the end of each feed roll 1 is extended, and a gear or the like that rotates the feed roll 1 is fixed to the extended end, and this gear or the like is connected to a drive mechanism (not shown). Incidentally, instead of linking to the drive mechanism in this way, it may be done by providing a drive roll 4 that faces and rotates in contact with a pair of feed rolls 1, as shown in FIG.

A burnishing roll 2 having a cylindrical shape as a whole is disposed on the pair of feed rolls 1 configured as described above. This burnishing roll 2 can be used only by pressing the burnishing roll 2 against the workpiece A.
cooperates with the feed roll 1 to press the circumferential surface of the workpiece A, and is located on the opposite side of the feed roll 1 to the workpiece A and at or near the intersection position of the feed rolls 1 in the axial direction of the feed roll 1. , that is, feed roll 1
It is arranged approximately in the middle part in the axial direction.

Further, as shown in FIG. 5, the burnishing roll 2 is constructed by narrowing the end 7 of the workpiece A near the mouth so that the diameter gradually becomes smaller as it goes outward.
To facilitate the biting of workpiece A. In this case,
It goes without saying that the narrowing circumferential surface may be rounded or straight in the narrowing direction.

Incidentally, although the burnishing roll 2 in the illustrated example has a cylindrical shape as a whole, the shape is not limited to this, but the burnishing roll 2 may have a cylindrical shape as a whole, but the burnishing roll 2 may have a cylindrical shape as a whole. It may be formed as a shape. Furthermore, it may be shaped like a bundle, a tapered shape, or a stepped shaft in which the supporting portion is formed with a diameter smaller than that of the main body via a stepped portion. Further, if necessary, a grooved roll having circumferential grooves formed on these circumferential surfaces may be used.

Although the burnishing roll 2 is normally configured in a free state, it may be configured to provide rotational drive for the purpose of strengthening the self-propelling force of the workpiece A. The burnishing roll 2 requires adjustment of the pressing force and amount of pressing against the workpiece A, and these adjustments can be performed using known pressing means, such as pneumatic pressure, hydraulic pressure, screw pressure, cam pressure, etc. Pressure due to
Select and use a means such as pressing with a spring.

Incidentally, the burnishing roll 2 is supported from above by a pair of guide rolls 5 as shown in FIG. 2 or FIG. Also good.

In use, burnishing is performed by a roll set consisting of a pair of feed rolls 1 and one burnishing roll 2. Further, one roll set may be provided as a combination of a pair of feed rolls 1 and a plurality of burnishing rolls 2 provided on the feed rolls 1. In order to obtain a highly accurate smooth surface or due to the difference in the material of the workpiece A, a plurality of these roll sets are provided and the burnishing process is performed by arranging them in parallel so that the passage of the workpiece A is approximately straight. It is also possible to use a device that performs the process several times. still,
The rotation direction of the feed roll 1 may be clockwise or counterclockwise and is not particularly limited, but in reality, there is a relationship between the rotation direction of the feed roll 1 and the self-propelled direction of the workpiece A, so the attached devices etc. may be rotated clockwise or counterclockwise. It is necessary to arrange it appropriately according to the direction of rotation. Further, the passage of the workpiece A may be gently curved as necessary.

Next, an embodiment of this invention will be described based on FIG. In the figure, 10 is a frame, and on this frame 10 there is a set of feed rolls 11 that axially supports the feed roll 1 and has a set angle to the feed roll 1 so as to be inclined with respect to the horizontal plane. and a drive gear box 13 connected to the feed roll 1 via a universal joint 12 to drive the feed roll 1.
and a burnishing roll support device 14 that supports the burnishing roll 2 and applies necessary pressure to the workpiece A.

The burnishing roll support device 14 moves up and down in conjunction with the above-mentioned pressing means inside, and has a burnishing roll bed 16 on the front surface to which a burnishing roll head 15 is fixed, and a pressurizing feed handle 17 on the top. , this pressurizing feed handle 1
A pressing amount display means 18 for digitally displaying the pressing amount of the burnishing roll 2 in conjunction with the rotation of the burnishing roll 7 is provided.

The burnishing roll head 15 has the burnishing roll 2 mounted on its lower part, and is provided with a fine adjustment moving means such as a screw to move the burnishing roll 2 by a small amount in the vertical direction. Fine adjustment dial 19 connected to transportation means
is arranged.

This fine adjustment moving means performs fine adjustment when a plurality of burnishing roll heads 15 are arranged in parallel on the burnishing roll bed 16, and aligns them with each other or moves a plurality of burnishing rolls 2.
It becomes possible to gradually increase the amount of depression by changing the height of the button. Note that 20 in the figure is a lock lever for fixing the pressurizing feed handle.

This invention is constructed as described above, and in a burnishing processing device, two feed rolls 1 are mounted on shafts and held so as to face each other with a gap narrower than the diameter of a cylindrical or cylindrical workpiece A. ,
Each feed roll 1 is provided so as to be inclined at an appropriate set angle in opposite directions with respect to a horizontal plane, and a drive mechanism is connected to this feed roll 1. The workpiece A is formed into a wrapper shape as a whole so that the line formed by the circumferential surface of the feed roll 1 is a hyperbola, and is placed between the feed rolls 1.
A moving means is provided for moving the feed roll 1 substantially linearly in the axial direction while rotating it along the feed roll 1, and moves the feed roll 1 with respect to the workpiece A at or near the intersection position of the feed rolls 1 in the axial direction of the feed roll 1. On the other side of
A burnishing roll 2 is provided that works together with the feed roll 1 to press the circumferential surface of the workpiece A and can adjust the amount of pressure as appropriate, and the burnishing roll 2 is
In order to facilitate the biting of the workpiece A, the edge on the biting side is formed to have a diameter that gradually becomes smaller as it goes outward, and the workpiece A can be moved by simply pressing a burnishing roll onto the workpiece A. Since the feed roll 1 and the burnishing roll 2 are formed so that the burnishing process is performed continuously while rotating and moving in a substantially straight line between the feed roll 1 and the burnishing roll 2 for work hardening, it is possible to finish the surface smoothly and also to work harden the feed roll 2. A machined surface with excellent durability can be obtained by increasing the surface hardness, and if the workpiece A is continuously supplied, the work can be performed automatically and continuously.

In other words, since the machined surface undergoes plastic deformation similar to that of one rolled at room temperature, the crystal grains on the surface become finer, unlike those inside, and are significantly strained due to sliding deformation in the direction of roll finishing. Therefore, the surface becomes a fibrous structure with compressive residual stress and a fine structure with work hardening, which can increase the surface hardness.

Further, the burnishing surface processing device according to this invention is different from those using a cutting or grinding method, and is used to roll minute protrusions on the surface of the workpiece A by pressing with a smooth peripheral surface of the roll. Therefore,
The finished machined surface is a smooth surface A1 as shown in Figure 3.
The cross-sectional shape has an appropriate number of recesses A2 on the top.
The finished smooth surface A1 having an appropriate number of recesses A2 becomes optimal as the peripheral surface of the tape guide column.

That is, the smooth surface A1 having an appropriate number of recesses A2 is
This is because the recess A2 can weaken the adhesiveness of the tape, and the smooth surface A1 can prevent the tape from being damaged. Furthermore, the surface hardness can be increased by work hardening as described above, and durability can also be improved.

Furthermore, since the two feed rolls 1 are mounted on shafts so as to face each other with a gap narrower than the diameter of the cylindrical or cylindrical workpiece A, the workpiece A placed between the feed rolls 1 is , whose axis is
Since it is located above the axis of the feed roll 1, it is ideal for pressing the burnishing roll 2 against the workpiece A since the opposite direction of the feed roll 1 can be seen. A burnishing roll 2 is placed at or near the intersecting position of the
Since the burnishing roll 2 does not interfere with the feed roll 1, therefore,
Even if the feed rolls 1 are arranged in a crossed manner as described above, the burnishing roll 2 will not overlap the feed roll 1.
There is no need to swing the drive system according to the overhang of the workpiece A, and the burnishing process itself only requires pressing the burnishing roll 2 against the workpiece A at that position, so this mechanism is sufficient, and the overall structure is Simplification can be achieved.

Further, this feed roll 1 is provided so that each feed roll 1 is inclined at an appropriate set angle in mutually opposite directions with respect to a horizontal plane,
The workpiece A placed between the feed rolls 1 is formed into a wrap shape so that the line formed by the peripheral surface of the feed roll 1 in a cross section having the center line of the feed roll 1 is a hyperbola, and the workpiece A is rotated along the feed roll 1 while being rotated along the axis. A moving means is provided on the opposite side of the feed roll 1 with respect to the workpiece A, and works together with the feed roll 1 to press the circumferential surface of the workpiece A, and the amount of pressure can be adjusted as appropriate. A burnishing roll 2 is provided, and the end of the burnishing roll 2 is formed so that the diameter thereof gradually becomes smaller toward the outside in order to facilitate the embedding of the workpiece A. Since the feed roll 1 and the burnishing roll 2 are formed so as to rotate and move in a substantially straight line, they are continuously fed to perform the burnishing process.
By arranging the two feed rolls 1 so as to be inclined at appropriate angles in opposite directions with respect to the horizontal plane, the workpiece A is subjected to both rotational force and , the diagonally forward moving force acts, and it becomes possible to continuously feed the workpiece A by simply placing the workpiece A between feed rolls 1 and 2.The workpiece A is well embedded in the mouth at that time, so that the workpiece A can be fed one after another. Workpiece A can be processed continuously,
It is possible to perform smooth burnishing without causing any scratches on the workpiece A, making it ideal for this type of burnishing and allowing mass processing to be carried out very efficiently.

As explained above, this invention is ideal as a burnishing device, can smooth the surfaces of cylindrical shafts and cylinders, and improves the durability of the machined surfaces through work hardening. Various useful effects can be obtained in practice, such as surface processing that can be performed continuously and automatically, efficient mass processing becomes possible, and the configuration is simplified as much as possible.
It is possible to provide a burnishing surface processing device that is optimal for manufacturing tape guide columns and the like.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is a side view of the same, FIG. 3 is an enlarged sectional view of the machined surface obtained by this invented device, and FIG. 4 is a front view of the entire device. Fig. 5 is a plan view of the main part showing the feed roll portion, Fig. 6 is a sectional view taken along the - arrow line in Fig. 5, Fig. 7 is also a sectional view taken along the - arrow line, and Fig. 8 is also a sectional view taken along the - arrow line in Fig. 5. . A... Workpiece, A1... Smooth surface, A2... Recess, 1... Feed roll, 2... Burnishing roll, 3... Push rod, 4... Drive roll, 5...
... Guide roll, 6 ... Circumferential surface, 7 ... End, 10
...Frame, 11...Feed roll set,
12...Universal joint, 13...Drive gearbox,
14... Burnishing roll support device, 15... Roll bed, 17... Pressure feed handle, 18
... Pressing amount display means, 19 ... Fine adjustment dial,
20...Rock lever. ...vanishing roll head, 16...vanishing.

Claims (1)

[Scope of utility model registration request] In a burnishing processing device, two feed rolls are axially mounted and held so as to face each other with a gap narrower than the diameter of a cylindrical or cylindrical workpiece, and each feed roll is rotated in opposite directions with respect to a horizontal plane. The feed roll is provided so as to be inclined at an appropriate set angle, and a drive mechanism is connected to the feed roll, and the entire feed roll is constructed such that the line formed by the peripheral surface of the feed roll in a cross section having the center line of the feed roll is a hyperbola. A moving means is provided for moving the workpiece formed into a bundle shape and placed between the feed rolls in a substantially straight line in the axial direction while rotating along the feed rolls, and at or near the intersection position of the feed rolls in the axial direction of the feed rolls. And, on the opposite side of the feed roll to the workpiece, a burnishing roll is disposed that cooperates with the feed roll to press the circumferential surface of the workpiece and can adjust the amount of pressure as appropriate, and the burnishing roll is In order to make it easier to insert the workpiece into the jaw, the end of the workpiece is formed so that the diameter gradually decreases as it goes outward, and the workpiece can be easily inserted into the workpiece by simply pressing a burnishing roll against the workpiece.
A burnishing surface processing device characterized in that the burnishing surface processing device is formed so as to continuously perform burnishing processing while rotating and substantially linearly moving between a feed roll and a burnishing roll for work hardening.