JPH0724549U - Edge grinding device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an end surface grinding device capable of processing the upper and lower corners of the end surface of a member to be ground at one time and easily and efficiently chamfering without adjusting even if the plate thickness is different. To aim. A grinding device for grinding upper and lower corners of an end surface of a member to be ground mounted on a conveying means is oblique to an end surface of the member to be ground on the conveying means in an advancing direction and in a traveling direction. It has upper and lower belt grinding means 1 and 2 arranged side by side, and the grinding belt 1d of the upper belt grinding means 1 of the belt grinding means 1 and 2 is angled with respect to the lower corner portion b of the member A to be ground. The grinding belt 2d of the lower belt grinding means 2 forms a chamfering angle with respect to the upper corner portion a of the member to be ground A, which is elastically mounted so as to swing close to the member to be ground so as to form a cutting angle. As described above, it is mounted so as to swing freely with respect to the member A to be ground.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an end surface grinding device for chamfering (abbreviated to a wide concept including deburring in this specification) the upper and lower corners of an end surface of a member to be ground, such as a plate material.

[0002]

[Prior art]

 Burrs, so-called "burrs," are generated on the cut end face of a member to be ground, for example, a plate material cut by a shearing device or the like, by cutting (shearing). Since this bar is sharp like a sharp blade, there is a risk of cuts if the hands etc. are touched during assembly, etc., and it also has a rough appearance, so it is exposed to the outside. Of course, so-called "chamfering process (also called deburring process)" is generally performed even for members such as plate materials used inside.

Conventionally, in this “chamfering process”, since it is necessary to process members to be ground having various plate thicknesses different from each other, a grinding device called a belt sander is fixed and the belt portion of this device is fixed. "Chamfering" was performed on the upper and lower corners of the end surface by abutting and grinding one of the upper and lower corners of the workpiece to be gripped by hand, then reversing and grinding the remaining corners. .

Further, in recent years, in view of the poor workability of gripping and grinding with the above-mentioned hand, the grinding belt portion of the belt sander is passed by gripping and carrying the member to be ground by the carrying means, There is provided an end surface grinding device that performs chamfering processing (see FIG. 6) at one of upper and lower corners of an end surface of a grinding member.

[0005]

[Problems to be solved by the device]

 However, when the above-mentioned member to be ground is gripped by hand for chamfering, it is extremely inefficient, and at the same time, it is difficult to keep the chamfer dimension strictly constant. There was a problem.

On the other hand, in the case of the above-mentioned automated end surface grinding machine, it is considerably more efficient and has a constant chamfering dimension as compared with a machine which is gripped by hand and chamfered, but various plate thicknesses are different. Since it is a general-purpose machine that processes, the upper and lower corners of the end face must be machined one by one, which is not always efficient. In the case of a dedicated machine for processing a plate of constant thickness, an end surface grinding machine that processes the upper and lower corners of the end surface at one time can be considered, but in this case, only the plate of constant thickness is processed. There is a problem in that it cannot be done and is inferior in versatility.

The present invention has been made in view of the above situation, and it is possible to machine the upper and lower corners of the end surface of the member to be ground at one time, and chamfer easily and efficiently without adjusting even if the thickness is different. It is an object of the present invention to provide an end surface grinding device that can be processed.

[0008]

[Means for Solving the Problems]

 An end surface grinding device according to the first aspect of the present invention is a grinding device for grinding upper and lower corners of an end surface of a member to be processed placed on a conveying means. The upper and lower belt grinding means are arranged diagonally with respect to the end surface of the belt and are arranged side by side in the advancing direction. Among the belt grinding means, the grinding belt of the upper belt grinding means is to be ground. The grinding belt of the lower belt grinding means is attached to the upper corner of the member to be ground so that it can swing close to the member to be ground so as to form a chamfering angle with respect to the lower corner of the member. It is characterized that it is mounted so that it can swing close to the member to be ground so as to form a chamfering angle.

[0009]

[Action]

 Therefore, according to the end surface grinding apparatus of the present invention, if the member to be ground is placed on the conveying means, the conveying means conveys the member to be ground, and the member to be ground can be moved up or down among the upper and lower corners of the end surface. The upper belt grinding means performs chamfering on the corners (for example, the lower corners), and the remaining belt corners (for example, the upper corners) on the upper and lower corners are chamfered by the lower belt grinding means, in this order, or Repeat in reverse order. Further, since the upper and lower belt grinding means are both swingably mounted, it is possible to perform end face grinding so that the chamfering angle and chamfering dimension are substantially the same even if the thickness of the member to be ground changes. it can.

Moreover, since the upper belt grinding means and the lower belt grinding means are obliquely arranged with respect to the traveling direction, the grinding belt and the tip end surface of the member to be ground are obliquely brought into contact with each other to be ground. The grinding belt surface can always come into contact with the corner of the member to be ground without hindering the progress of the member and without finely adjusting the position.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a structure of an end surface grinding apparatus according to an embodiment of the present invention in a state where an upper cover is removed and an upper pressing roller is removed, and FIG. 2 is seen from a direction II of FIG. Fig. 3 is a front view of the end surface grinding device of the octopus, Fig. 3 is a sectional view taken along the line II-II of Fig. 1 showing the structure of the upper belt grinding means portion, and Fig. 4 is a III view of the lower belt grinding means portion of Fig. -II I is a sectional view taken along the arrow.

In FIG. 1, 1 is an upper belt grinding means composed of a belt sander, 2 is a lower belt grinding means composed of a belt sander, 3 and 4 are provided on the base side, and the belt grinding means are provided. It is a bearing member that pivotally supports the first and second parts, respectively. Further, 5 is a drive roller that supports the member to be ground and conveys it to the side of the belt grinding means 1 and 2, and 7 is a guide roller for guiding and positioning the end surface of the member to be ground to be machined. Further, in FIG. 2, reference numeral 6 denotes a pressing roller which is arranged to face the driving roller 5 vertically.

As shown in FIG. 1, the upper belt grinding means 1 and the lower belt grinding means 2 are inclined with respect to the traveling direction X of the member to be ground, that is, have an angle α with respect to the traveling direction X. Is arranged. Further, the upper belt grinding means 1 and the lower belt grinding means 2 are swingably supported by the bearing members 3 and 4 so that they can come close to the member A to be ground, as shown in FIGS. (Refer to the pulleys 1c and 2c indicated by the arrows R and Q and the chain double-dashed line). Then, as shown in FIG. 3, the upper belt grinding means 1 is brought into contact with the lower corner portion b (see FIG. 6) of the end surface of the member A to be ground in the direction indicated by the arrow R by the weight of the belt sander. As shown in FIG. 4, the belt grinding means 2 below the belt sander is pressed so that the belt grinding means 2 contacts the upper corner a (see FIG. 6) of the end surface of the member A to be ground. Is pressed in the direction indicated by arrow Q.

In the upper belt grinding means 1, as shown in FIG. 3, a motor M ₁ is arranged in a frame 1A having a support shaft 1a supported at the bearing member 3 at one end. A pulley 1b is arranged on the rotation shaft of the motor M ₁ , and a pulley 1c is arranged rotatably on the tip side (lower left side in FIG. 3) facing the pulley 1b. An endless grinding belt 1d is wound between the rollers 1b and 1c, and a portion 1d 'of the grinding belt 1d adjacent to the base end of the pulley 1c is located slightly above the upper end of the drive roller 5.

Further, the pulley 1c is configured to be able to project toward the tip end side with respect to the frame 1A, and the degree of this projection is configured to be determined by the degree of pressing of a spring (not shown).

Further, on the upper surface side of the grinding belt 1d, a grinding belt support plate 1e is arranged below except the adjacent portion 1d ′ on the base end side of the pulley 1c, and the base end of the adjacent portion 1d ′ is arranged. The side part is slightly bent to the lower surface side.

Further, the wall surface 20 of the base B is provided with a stopper end surface 1f that abuts against the frame 1A.

On the other hand, in the lower belt grinding means 2, as shown in FIG. 4, a motor M ₂ is arranged on a frame 2A having a support shaft 2a supported at the bearing member 4 at one end. with roller 2b is arranged on the rotary shaft of the motor M _2, rotatably roller 2c to the distal end side to face this roller 2b (upper right side in FIG. 4) are disposed, these rows La 2b An endless grinding belt 2d is wound between the rollers 2c, 2c, and an adjacent portion 2d 'of the grinding belt 2d on the base end side of the roller 2c is located slightly above the upper end of the drive roller 5.

Further, the roller 2c is configured to be capable of protruding toward the tip end side with respect to the frame 2A, and the extent of this protrusion is determined by the degree of pressing of a spring (not shown).

Further, on the lower surface side of the grinding belt 2d, a grinding belt support plate 2e is arranged above except the adjacent portion 2d 'on the base end side of the roller 2c, and the base end of the adjacent portion 2d' is provided. The side part is slightly bent to the upper surface side.

Further, the bracket 21 attached to the base B is provided with a stopper end surface 2f that abuts against the frame 2A.

A plurality of drive rollers 5 are provided on the side of the belt grinding means 1 and 2 described above (front side in FIG. 1, left side in FIG. 3, right side in FIG. 4) (in this embodiment). As shown in FIG. 2, each driving roller 5 is provided with a motor M ₀ arranged at the bottom of the base B through a sprocket 8, a chain 9 and a sprocket 16 on the roller 5 side. , Are configured to be driven.

Further, as shown in FIG. 3, among the drive rollers 5, the drive roller 5 ₁ located at a position in contact with the above-mentioned upper belt grinding means 1 does not interfere with the belt grinding means 1. The roller width W is configured to be short, and two small-diameter support rollers 10 ₁ are arranged on the side of the support plate 5a of the drive roller 5 ₁ on the belt grinding means 1 side as shown in FIG. It is set up. Support rollers 10 ₁ of the two is arranged so that the upper end in the same position as the upper end of the other drive B over La 5.

As shown in FIG. 2, a pressing roller 6 is arranged above the drive roller 5 so as to face each other vertically. The pressing roller 6 is illustrated in FIGS. 4 and 5. As described above, the support shaft 6a is rotatably supported on the base B side, and the spring 11 is interposed between the support shaft 6a and the base B to drive the drive roller 5 and the pressing roller. 6 serves to clamp and fix the member A to be ground from above and below during conveyance.

As shown in FIG. 4 or 2, the pressing roller 6 is not provided at the position where the above-mentioned lower belt grinding means 2 is provided, and the belt grinding means 2 is provided. The pressure roller 6 is prevented from interfering with each other, and _two small-diameter support rollers 102 are provided as shown in FIG. Support roller 10 ₂ of the two is lower in the pressed state downward through and leaf springs so that the same position as the lower end of the other drive dynamic roller 5, are disposed.

On the side of the drive roller 5 on the side of the belt grinding means 1, 2 (opposite side in FIG. 1), a guide roller 7 is provided so that the outer peripheral edge thereof is slightly separated from the end of the drive roller 5. Is erected. That is, the rotary shaft 7a is erected in a direction orthogonal to the drive roller 5 so that the end surface of the member A to be ground conveyed on the drive roller 5 contacts the outer periphery of the guide roller 7 to guide and position it. There is.

Further, in this embodiment, as shown in FIGS. 1 and 5, a side support is provided on the side of the drive roller 5 on the side opposite to the belt grinding means 1 and 2 (front side in FIG. 1). A plurality of rollers 12 are rotatably lined up on a support frame 13, and this support frame 13 is supported on the base B side via a support rod 14 and a receiving member 15, as shown in FIG. As indicated by a two-dot chain line in FIG. 1, it is configured so as to project in the direction away from the belt grinding means 1 and 2 side (the front side direction in FIG. 1) according to the width of the member A to be ground.

Thus, the end surface grinding apparatus according to the present embodiment configured as described above functions as described below to grind the upper and lower corners of the end surface of the member to be ground.

That is, when the end surface grinding device is operated, the motors M _0, M _{1 and} M ₂ rotate, and in this state, the member A to be ground indicated by the two-dot chain line in FIGS. 1 and 2 is driven by the drive roller. 5 is placed so that the end surface to be ground on the guide roller 7 contacts the guide roller 7, and is fed to the left side in FIGS. 1 and 2, between the pressing roller 6 located above and the driving roller 5 located below. In the sandwiched and fixed state, it is conveyed to the left side in FIGS. 1 and 2.

Then, the tip of the member A to be ground contacts the rotating grinding belt 1d of the belt grinding means 1 above, but at this time, the belt grinding means 1 is slanted with respect to the traveling direction as described above. 3 and is pressed by the belt sander's own weight in the direction shown by the arrow R in FIG. 3 so that it can approach the lower corner b (see FIG. 6) of the member to be ground A, so it is pressed movably. Therefore, regardless of the plate thickness of the member A to be ground, the members A always contact at a substantially constant angle. Therefore, the lower corner portion b (see FIG. 6) of the end surface of the member A to be ground is ground by the grinding belt grinding means 1 as shown in FIG. 6 to remove burrs.

When the member A to be ground is further conveyed to the left side in FIGS. 1 and 2, the member A comes into contact with the grinding belt 2d of the lower belt grinding unit 2 at this time, but the belt grinding unit 2 is moved to the above-mentioned position. As shown in Fig. 6, the weight of the belt sander and the weight 18 are pressed so as to be close to the upper corner a of the member A to be ground (see Fig. 6). Since it is pressed freely, it always contacts at a substantially constant angle regardless of the plate thickness of the member A to be ground. Therefore, the upper corner a (see FIG. 6) of the end surface of the member A to be ground is ground by the belt grinding means 2 as shown in FIG. 6 to remove burrs.

As described above, the member A to be ground is conveyed from above by the driving roller 5 by the pressing roller 6 and is sandwiched by these rollers 6, 5, and the upper belt grinding means 1 and the lower belt grinding means 1 are conveyed. By passing through the grinding means 2, the upper and lower corner portions a and b of the end surface of the member A to be ground can be chamfered with a desired chamfer dimension s, as shown in FIG.

When the member A to be ground is a wide member, the side support roller 13 is extended to the front side as shown by the chain double-dashed line in FIG. It can be supported by and driven by the driving roller 5.

According to the end surface grinding apparatus of the present embodiment, as described above, if the end surface of the material to be ground A is simply placed on the drive roller 5 so that the end surface of the material A to be ground comes into contact with the guide roller 7, The upper and lower corners of the end face are automatically chamfered and then delivered.

[0036]

[Effect of device]

 Thus, according to the end surface grinding apparatus of the present invention, the upper and lower corners of the end surface of the member to be ground can be processed at one time, and even if the thickness is slightly different within a certain range, it can be easily and efficiently adjusted. Can be chamfered.

Therefore, in the present day when labor costs are high, it becomes possible to save labor in chamfering the end face of a member to be ground such as a plate material.

Furthermore, since the structure can be relatively simple, it can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a plan view showing a configuration of an end surface grinding apparatus according to an embodiment of the present invention in a state where an upper cover is removed and an upper pressing roller is removed.

FIG. 2 is a view of the structure of the end surface grinding apparatus according to the embodiment of the present invention taken along the line II of FIG. 1, in which belt grinding means is omitted.

FIG. 3 is a view showing a configuration of a lower belt grinding means portion.
11 is a sectional view taken along the line II-II of FIG.

FIG. 4 is a view showing a configuration of an upper belt grinding means portion.
FIG. 3 is a sectional view taken along line III-III of FIG.

5 is a sectional view taken along line IV-IV in FIG. 1 showing the arrangement of the driving roller and the pressing roller, and the arrangement of the guide roller and the side supporting roller.

FIG. 6 is a side view of the member to be ground, exaggeratingly showing the chamfered state of the upper and lower corners of the end face.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper belt grinding means 1d ... Grinding belt 2 ... Lower belt grinding means 2d ... Grinding belt 5 ... Driving roller 6 ... Pressing roller A ... Grinding member a ... Upper corner b ... Lower corner

Claims (1)

[Scope of utility model registration request] 1. A grinding device for grinding upper and lower corners of an end surface of a work member placed on a conveying means, wherein the grinding device is in an approaching direction with respect to the end surface of the work member on the conveying means. The upper and lower belt grinding means are arranged obliquely with respect to each other in the traveling direction, and the grinding belt of the upper belt grinding means of the belt grinding means is chamfered with respect to the lower corner of the member to be ground. It is mounted so as to swing close to the member to be ground so as to form an angle, and the grinding belt of the lower belt grinding means forms a chamfering angle with respect to the upper corner of the member to be ground. An end surface grinding device characterized by being elastically mounted so as to be capable of swinging close to each other.