JP4855488B2 - Tool holding device - Google Patents

Description

  The present invention relates to a holding device, and more particularly to a tool holding device mounted on a road cutting machine, various rotary cutting machines, or a polishing machine.

  A cutter holder and a tool-holding device of a conventional cutting machine are used to perform road surface cutting, mining mining, or surface roughening (for example, Patent Document 1 and Patent Document) 2).

  Each of the above-described tool holding devices includes a base fixed to the outer peripheral surface of an operating part (for example, a roller) of a machine and a holder coupled to the base. A tool is attached to the holder, and the holder is fastened on the base by a fastener. This tool is mounted on a holder so that a tangential angle with the substrate is formed so that drilling and cutting can be conveniently performed on the workpiece.

  When a conventional cutting machine performs processing, first the tool blade is brought close to the work piece, the roller is rotated to cut the work piece, and the work piece (for example, concrete on the road surface, asphalt, etc.) Destroy.

  Furthermore, since the workpiece generally has a solid structure, the service life of the tool is shortened, it is necessary to change frequently, and the reaction force generated when processing is transmitted to the tool body as well as the holder body I was sometimes told. For this reason, the strength between the holder and the substrate is not sufficient, and when replacing the tool, the holder has to be replaced at the same time. Therefore, the use cost was high.

  As can be seen from the above, the assembly strength of these tool holding devices was very important in order to achieve the desired machining objective, because the outside of the workpiece was stiff. When used in a road cutting machine, when cutting by rotating the cutter on the roller, the reaction force applied to the cutter holder due to the action force generated by the cutter cutting on the road surface to be cut is a fatal wound of the cutter holder There was sometimes. In particular, when the road cutting machine is used in an abnormal state, the service life of the cutter holder body may be shortened. Therefore, there has been a demand for a tool holding device that can increase the bond strength between the base and the holder, extend the service life, and reduce the use cost.

Taiwan Patent No. 275696 Taiwan Patent No. 275697

The first object of the present invention is to fix the load of the reaction force generated during processing by fixing the holder on the contact portion having a non-obtuse angle (that is, an angle of 90 degrees or less). It is an object of the present invention to provide a tool holding device that can be received by an inclined wall.
The second object of the present invention is to increase the bonding strength between the holder and the substrate by fitting the stopper block of the holder to the contact surface of the substrate after fitting the dovetail slide block of the holder onto the open guide groove of the substrate. It is to provide a tool holding device.
The third object of the present invention is to provide a concave portion communicating with the outer wall surface of the base between the front and rear slant wall portions, and the fineness generated when processing is performed by the waste disposal function of the concave portion. An object of the present invention is to provide a tool holding device that prevents clogging of clogs inside and deterioration of the cutter processing performance.

  In order to solve the above problems, according to a first aspect of the present invention, there is provided a tool holding device mounted on a roller of a cutting machine, which is fixed on an outer peripheral surface of the roller, and has a forward inclined wall and a rearward inclined wall. A contact portion including a wall, a contact surface extending downward from the top end of the forward inclined wall so as to be separated from the rear inclined wall, a receiving hole formed in the rear inclined wall in the axial direction, A base having a positioning hole communicating with the receiving hole, a detachably mounted on the base, a clamping part disposed at the contact part, and extending outward from the clamping part, the receiving hole A holder having a handle portion penetrating therein, a holding hole for receiving a tool, which is formed in the clamping portion and the handle portion so as to be parallel to the axial direction, and pressing the handle portion to A positioning member having an end for fixing the holder and penetrating through the positioning hole, An angle between the rear 傾壁 and 傾壁 is less than 90 degrees, the clamping portion, the tool holding device is provided with two walls which respectively correspond to the rear 傾壁 and the front 傾壁.

  In addition, it is preferable that the holder has a stopper that can be brought into contact with the contact surface of the base body and that protrudes in the outer diameter direction from the holding portion.

  Further, it is preferable that the base has an open guide groove formed on the forward inclined wall, and the holder has a slide block that slides on the open guide groove of the base.

  Moreover, it is preferable that the said base | substrate is provided with the recessed part which is provided in the joint of the said front inclination wall and the said back inclination wall, and communicates with the outer wall surface of the said base | substrate, and excludes small waste.

  Moreover, it is preferable that the said handle part of the said holder has a notch part which can communicate with the said positioning hole and can insert the said positioning member in it.

  According to the second aspect of the present invention, there is provided a tool holding device mounted on a roller of a cutting machine, which is fixed on the outer peripheral surface of the roller and includes a forward inclined wall and a backward inclined wall. A contact surface extending downward from the top end of the forward inclined wall so as to be separated from the rear inclined wall, a receiving hole drilled in the rear inclined wall in the axial direction, and a positioning communicating with the receiving hole A base having a hole, a holding part that is detachably mounted on the base and is disposed in the contact part, and a storage hole that is provided in the holding part so as to be parallel to the axial direction. A holder having a tool, a tube part inserted into the holder hole of the holder and the receiving hole of the base, a stopper formed at the front end of the pipe part, and parallel to the axial direction A shaft tube having a shaft hole formed in the tube portion and the stop portion, and disposed in the positioning hole. A positioning member having an end portion that presses the tube portion of the shaft tube to fix the shaft tube, and an angle formed by the forward inclined wall and the rear inclined wall is less than 90 degrees, and the clamping The part has two walls respectively corresponding to the rearwardly inclined wall and the forwardly inclined wall, and the stop part is provided with a tool holding device that abuts on the outer wall surface of the holder.

  In addition, it is preferable that the holder has a stopper that can be brought into contact with the contact surface of the base body and that protrudes in the outer diameter direction from the holding portion.

  Further, it is preferable that the base has an open guide groove formed on the forward inclined wall, and the holder has a slide block that slides on the open guide groove of the base.

  Moreover, it is preferable that the said base | substrate is provided in the joint of the said front inclination wall and the said back inclination wall, and is equipped with the recessed part which communicates with the said outer wall surface of the said base | substrate, and excludes small waste.

  Moreover, it is preferable that the said pipe part of the said shaft pipe has a notch part which can communicate with the said receiving hole and can insert the said positioning member in it.

  As is clear from the above description, the tool holding device of the present invention can improve the bonding strength between the holder and the base, and can improve the mechanical strength of the entire tool holding device. Therefore, the use cost can be reduced.

It is a disassembled perspective view which shows the tool holding device by 1st Embodiment of this invention. It is a perspective view which shows the tool holding device by 1st Embodiment of this invention. It is sectional drawing which shows the tool holding | maintenance apparatus by 1st Embodiment of this invention. It is sectional drawing which shows a state when the open guide groove of the base | substrate by the 1st Embodiment of this invention and the slide block of a holder are combined. It is a schematic diagram which shows a state when using it, making a tool holding device adhere to the roller by 1st Embodiment of this invention. It is a disassembled perspective view which shows the tool holding device by 2nd Embodiment of this invention. It is sectional drawing which shows the tool holding device by 2nd Embodiment of this invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

(First embodiment)
Please refer to FIG. 1 and FIG. As shown in FIGS. 1 and 2, the tool holding device according to the first embodiment of the present invention includes a base body 100, a holder 200, and a positioning member 300. This tool holding device is mounted on a roller 510 of a cutting machine 500, and is used for cutting a road surface by holding the tool 400 (see FIG. 5).

  Please refer to FIG. 1 and FIG. As shown in FIGS. 1 and 3, the base body 100 includes a bottom surface (see FIG. 5) welded on the outer peripheral surface 511 in accordance with the radius of curvature of the roller 510, a forward inclined wall 110, and a backward inclined wall 120. The contact portion 130, the recess 140 provided at the joint between the forward inclined wall 110 and the backward inclined wall 120, and the contact surface 150 extended downward from the top end of the forward inclined wall 110 so as to be separated from the backward inclined wall 120. And an open guide groove 160 formed on the forward inclined wall 110, a receiving hole 170 drilled in the rear inclined wall 120 in the axial direction, and a positioning hole 180 communicating with the receiving hole 170. The recess 140 communicates with the outer wall surface 101 of the base body 100 and is used for waste. The open guide groove 160 may have a dovetail structure. Furthermore, the angle θ formed by the forward inclined wall 110 and the rear inclined wall 120 is a vertical angle, but may be less than 90 degrees.

  The holder 200 is detachably mounted on the base body 100, a clamping part 210 disposed on the contact part 130, a handle part 220 extending outward from the clamping part 210 and penetrating into the receiving hole 170, A stopper 230 projecting from the clamping part 210 in the outer diameter direction, a slide block 240 provided at an end of the stopper 230, and a storage hole drilled in the clamping part 210 and the handle part 220 so as to be parallel to the axial direction 250. The storage hole 250 is used for storing the tool 400. As shown in FIG. 4, the slide block 240 of the holder 200 is slid into the open guide groove 160 of the base body 100, and the slide block 240 and the open guide groove 160 are fitted to each other with a dovetail structure. The stopper 230 is brought into contact with the surface 150 and the holder 200 is firmly engaged with the base body 100 in the axial direction, thereby preventing the holder 200 from receiving the force and moving inward. Thereby, crushed stone, dust, asphalt, etc. generated by cutting can be prevented from entering between the base body 100 and the holder 200.

  Furthermore, the handle part 220 of the holder 200 has a notch part 221. A positioning member 300 penetrating into the positioning hole 180 of the base body 100 is fitted into the notch 221. The positioning hole 180 is a screw hole, and the positioning member 300 is a screw shaft (for example, an internal hexagon countersunk screw) that can be fastened to the screw hole.

  As described above, in the tool holding device according to the first embodiment of the present invention, the angle formed by the front inclined wall 110 and the rear inclined wall 120 included in the contact portion 130 is a non-obtuse angle (90 degrees in the first embodiment). However, if the reaction force from the work piece 520 is transmitted to the holder 200 when cutting, the reaction force is directly applied to the rearward inclined wall 120 as shown in FIG. In addition to acting, the coupling relationship between the tool 400 and the base body 100 forms an inclination angle, so that a reaction force generated by processing is transmitted to the forward inclined wall 110. At this time, since the angle formed between the abutting portion 130 and the clamping portion 210 of the holder 200 is a non-obtuse angle, the holder 200 and the base body 100 are firmly held, the coupling strength is improved, and the mechanical strength of the tool holding device is increased. Can be increased.

  The holder 200 can obtain a good clamping effect by abutting a fan-shaped stopper 230 on the abutment surface 150 of the base body 100, and can also provide a dovetail slide block 240 in the open guide groove 160 of the base body 100. By fitting, the clamping effect between the holder 200 and the base body 100 can be made strong and stable. As a result, the load that the holder 200 can withstand is significantly increased, and the use time can be extended by preventing the holder 200 from cracking or collapsing. Therefore, it is possible to extend the entire service life and reduce the use cost. Furthermore, since the recess 140 formed between the forward inclined wall 110 and the rear inclined wall 120 has a waste disposal function, small waste of the workpiece 520 is clogged inside, and adversely affects the operation performance of the tool 400. Can be prevented. Furthermore, the scrap generated by the cutting can be guided by the contact surface 150 having an inclined structure, and the tool holding device can be prevented from being worn by the large scrap.

(Second Embodiment)
Please refer to FIG. 6 and FIG. As shown in FIGS. 6 and 7, the tool holding device according to the second embodiment of the present invention includes a base body 600, a holder 700, a shaft tube 800, and a positioning member 900. This tool holding device is mounted on a roller 510 of a cutting machine 500, and is used for cutting a road surface by sandwiching the tool 400.

  The base 600 is fixed on the outer peripheral surface 511 of the roller 510 and is a recess 640 provided at the joint between the forward inclined wall 610 and the backward inclined wall 620, and the contact portion 630 including the forward inclined wall 610 and the backward inclined wall 620. A contact surface 650 extending downward from the top end of the forward inclined wall 610 so as to be separated from the backward inclined wall 620, an open guide groove 660 formed on the forward inclined wall 610, and a rearward inclined wall 620 in the axial direction. And a positioning hole 680 communicating with the receiving hole 670. The concave portion 640 communicates with the outer wall surface 601 of the base body 600 and is used for removing waste and mud sand. The open guide groove 660 is a dovetail. Here, the angle θ formed by the forward inclined wall 610 and the backward inclined wall 620 is an angle θ in the second embodiment, but may be less than 90 degrees.

  The holder 700 is detachably mounted on the base body 600, and is provided at a clamping part 710 disposed at the contact part 630, a stopper 720 extending from the clamping part 710 in the outer diameter direction, and an end of the stopper 720. Slide block 730 and storage hole 740 drilled in clamping part 710 parallel to the axial direction. The slide block 730 of the holder 700 is slid into the open guide groove 660 of the base body 600, the base body 600 and the open guide groove 660 are fitted to each other with a dovetail structure, and the stopper 720 is placed on the contact surface 650 of the base body 600. The holder 700 is firmly engaged on the base body 600 in the axial direction.

  The shaft tube 800 is used to store the tool 400, and includes a tube portion 810 that extends through the storage hole 740 of the holder 700 and the receiving hole 670 of the base body 600, and a stop portion 820 formed at the front end of the tube portion 810. And a shaft hole 830 formed in the tube portion 810 and the stop portion 820 so as to be parallel to the axial direction. The stopper 820 is used to bring the holder 700 into contact with the outer wall surface 701. Further, the tube portion 810 of the shaft tube 800 has a notch portion 811. The notch portion 811 communicates with the positioning hole 680 of the base 600, presses the tube portion 810 of the shaft tube 800 at the end of the positioning member 900 penetrating the positioning hole 680, and fixes the shaft tube 800. The holder 700 can be positioned more reliably. The positioning hole 680 is a screw hole, and the positioning member 900 is a screw shaft that can be fastened to the screw hole.

  As can be seen from the above description, the tool holding device of the second embodiment has high bond strength and mechanical strength, and has a high waste removal effect and wear resistance as in the first embodiment. In the second embodiment, the shaft tube 800 is detachably provided in the housing hole 740 of the holder 700, and the holder 700 is worn by cutting waste by the stopper 820 of the shaft tube 800 exposed to the outside. Can be prevented. Therefore, the service life of the holder 700 can be extended. As a result, only the shaft tube 800 is worn even if it is used for a certain period of time. Therefore, the holder 700 can be continuously used only by replacing the shaft tube 800. Therefore, the second embodiment can reduce the material cost as compared with the first embodiment. As described above, the tool holding device of the present invention can reduce the cost of use, unlike the conventional tool holding device in which a large amount of tools and holders must be exchanged.

  As can be seen from the above-described embodiments, the tool holding device of the present invention can increase the bonding strength between the holder and the substrate and the overall mechanical strength, and the holder can be directly driven by the stopper of the holder and the stop portion of the shaft tube. It can be prevented from being worn. Furthermore, in the tool holding device of the present invention, the concave portion and the contact surface of the base body have a waste disposal action.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  100 base body, 101 outer wall surface, 110 forward inclined wall, 120 backward inclined wall, 130 abutting portion, 140 concave portion, 150 abutting surface, 160 open guide groove, 170 receiving hole, 180 positioning hole, 200 holder, 210 clamping portion, 220 handle part, 221 notch part, 230 stopper, 240 slide block, 250 storage hole, 300 positioning member, 400 tool, 500 cutting machine, 510 roller, 511 outer peripheral surface, 520 work piece, 600 substrate, 601 outer wall surface, 610 forward inclined wall, 620 backward inclined wall, 630 abutting portion, 640 recess, 650 abutting surface, 660 open guide groove, 670 receiving hole, 680 positioning hole, 700 holder, 701 outer wall surface, 710 clamping portion, 720 stopper, 730 slide block, 740 storage hole, 800 shaft tube, 810 tube section, 811 Notch, 820 Stop, 830 Shaft hole, 900 Positioning member

Claims (10)

A tool holding device mounted on a roller of a cutting machine,
An abutting portion fixed on the outer peripheral surface of the roller and including a forward inclined wall and a backward inclined wall; an abutting surface extending downward from the top end of the forward inclined wall so as to be separated from the backward inclined wall; A base having a receiving hole bored in the rearward inclined wall in a direction and a positioning hole communicating with the receiving hole;
A holding part that is detachably mounted on the base, and is arranged in the contact part, and a handle part that extends outward from the holding part and extends through the receiving hole is parallel to the axial direction. A holder that has a storage hole that is formed in the clamping part and the handle part and stores a tool,
A positioning member that has an end portion that presses the handle and fixes the holder, and is provided through the positioning hole;
An angle formed by the forward inclined wall and the backward inclined wall is 90 degrees or less,
The clamping unit is a tool holding device having two walls respectively corresponding to the rearwardly inclined wall and the forwardly inclined wall.   The tool holding device according to claim 1, wherein the holder has a stopper that can be brought into contact with the contact surface of the base body and that protrudes in an outer diameter direction from the clamping portion. The base has an open guide groove formed on the forward inclined wall;
The tool holder according to claim 1, wherein the holder has a slide block that slides into the open guide groove of the base.   The said base | substrate is provided in the joint of the said forward inclination wall and the said back inclination wall, and is provided with the recessed part which communicates with the outer wall surface of the said base | substrate, and excludes small debris. Tool holding device.   The tool holding device according to any one of claims 1 to 4, wherein the handle portion of the holder has a notch portion that communicates with the positioning hole and allows the positioning member to be fitted therein. A tool holding device mounted on a roller of a cutting machine,
An abutting portion fixed on the outer peripheral surface of the roller and including a forward inclined wall and a backward inclined wall; an abutting surface extending downward from the top end of the forward inclined wall so as to be separated from the backward inclined wall; A base having a receiving hole bored in the rearward inclined wall in a direction and a positioning hole communicating with the receiving hole;
A holder that is detachably mounted on the base and has a holding part that is disposed in the contact part and a storage hole that is provided in the holding part so as to be parallel to the axial direction;
A tube portion that houses the tool and is inserted into the holder hole of the holder and the receiving hole of the base, a stop portion formed at a front end portion of the tube portion, and the tube portion parallel to the axial direction And a shaft tube having a shaft hole drilled in the stop portion,
A positioning member disposed in the positioning hole and having an end for fixing the shaft tube by pressing the tube portion of the shaft tube;
An angle formed by the forward inclined wall and the backward inclined wall is 90 degrees or less,
The sandwiching portion has two walls corresponding respectively to the rearwardly inclined wall and the forwardly inclined wall,
The said holding | maintenance part is a tool holding | maintenance apparatus contact | abutted on the outer wall surface of the said holder.   The tool holding device according to claim 6, wherein the holder has a stopper that can be brought into contact with the contact surface of the base body and that protrudes in an outer diameter direction from the clamping portion. The base has an open guide groove formed on the forward inclined wall;
The tool holding device according to claim 6 or 7, wherein the holder has a slide block that slides into the open guide groove of the base.   The said base | substrate is provided in the joint of the said front inclination wall and the said back inclination wall, is connected to the said outer wall surface of the said base | substrate, and is provided with the recessed part which excludes small waste. Tool holding device.   The tool holding device according to any one of claims 6 to 9, wherein the tube portion of the shaft tube has a notch portion that communicates with the receiving hole and into which the positioning member can be fitted. .

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