JPS58126047A - Reciprocal moving mechanism of slide disc - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hand-held reciprocating mechanism for a profiling board, and more particularly, the present invention relates to a hand-held reciprocating mechanism for a profiling board, and in particular, a housing that supports a tool holding device, a connecting rod that is operably connected to the tool and the holding device, a crank pin for movement, the tool holding device being supported for reciprocating motion by a tool support ring carried by the housing; An internal retaining ring is used to permit rotation of the tool support housing relative to the tool support ring, the retaining ring comprising a pair of opposing rings formed in the tool retainer. For slidably supporting a flat surface, the slotted tool support housing allows the use of an enlarged tip so that the tool holding device is free of pressure between the tool support housing and the tool support housing. be able to support large lateral loads without excessive wear.

Hand-held reciprocating mechanisms for driving cutting tools such as profiling machines are known. This prior art technique suffers from its short service life and is prone to rapid wear and premature failure due to the lateral loads imposed on the reciprocating tool. Examples of conventional reciprocating mechanisms include U.S. Pat.
No. 90.081 and No. 3,626.768. These patents relate to the applicant's invention and provide the closest prior art approximation of a reciprocating mechanism for finishing rough surfaces of dies and the like.

SUMMARY OF THE INVENTION A basic object of the invention is to provide a new and improved reciprocating mechanism, and an object of the invention is to provide a new and improved reciprocating mechanism that can be used to smooth rough surfaces such as dies, It is a further object of the present invention to provide a reciprocating mechanism having an enlarged diameter bearing portion that absorbs lateral loads without excessive wear to smooth rough surfaces. It is a further object of the present invention to provide a reciprocating mechanism for finishing rough surfaces which includes a shield to prevent chips and cuttings from entering the area between the coated surfaces. It is in.

That is, the present application discloses, as in the illustrated embodiment, a housing 12, a tool holding device 14 supported by said housing 12 for reciprocating motion, and rotating on an axis 20 perpendicular to the direction of reciprocating motion. Drive shaft 18. A crank pin 24 attached to the drive shaft 18 providing reciprocating motion. a connecting rod 28 operably connecting the crank pin 24 and the tool holding device 14; a drive device 16 configured with a drive device 16; a tool support ring 30 having a center frame 32 and supported by the housing 12 in order to slidably support the tool holding device 14; A tool support housing 38 rotatably supported on the outside 40 of the ring metal 30, and the tool support housing 3
8 to the tool support ring 30 in the axial direction and allows the tool support housing 38 to rotate in relation to the tool support ring 30; and the tool holding device 14. A shield 106 surrounds the end of the mechanism and prevents chips and abrasive debris from entering the mechanism.
A hand-held reciprocating mechanism for a profiling board is a specified invention, comprising a housing 12 and said housing 1 for reciprocating movement.
2 and a drive shaft 18.2 which rotates on an axis 20 perpendicular to the direction of reciprocation.
A crank pin 24 attached to the drive shaft 18 providing reciprocating motion. The crank pin 24 and the tool holding device 1
Connecting rod 28. In order to slidably support the driving device 16 and the tool holding device 14, the housing 1 has a central frame 32.
2, a tool support housing 38 rotatably supported on the outside of the tool support ring 30, and a tool support housing 38 supported by the tool support ring 30. axially fixed to, and
The tool support housing 38 is connected to the tool support ring 30.
and a shield 106 surrounding the end of the tool holding device 14 to prevent chips and abrasive debris from entering the mechanism. The metal ring 30 has a rear end 34 with a thread on the outer periphery and a tip, and the tool support housing 38 includes a longitudinal restricting hole 48 and a restricting hole 48.
The tool support ring 30 has a first groove 50 extending diametrically outward from the center, and the tool support ring 30 is slidably connected to the longitudinal throttle hole 50, and the tool support ring 30 includes: Said first
There is a second groove 52 extending diametrically outwardly, juxtaposed with the groove 50 of the groove 50, and when inserted into the longitudinal restriction hole 48, so as to engage the first and second grooves 50°52. A retaining ring 54 with a circumferential notch 56 for diametrically inward clamping is provided, which retaining ring 54 can expand into said first groove 50 in its relaxed state and partially and , which diametrically occupies the first groove 50 thereof, which is also dipped into the tool support ring 3.
0 and into the second groove 52 and, upon entering the second groove 52, the first and second grooves 50.52, thereby preventing the tool support housing 38 from moving axially relative to the tool support ring 30, and also preventing the tool support housing 38 from moving axially relative to the tool support ring 30. A first combined invention is a hand-held reciprocating mechanism for a profiling board that allows free angular rotation, and also includes a housing 12 and a tool supported by the housing 12 for reciprocating movement. A holding device 14, a drive shaft 1B rotating on a shaft 20 perpendicular to the reciprocating direction, and a crank pin 24 attached to the drive shaft 18 that provides reciprocating motion.The crank pin 24 and the tool holding device 14 are operated. Connecting rod 28. a drive device 16 comprising a drive device 16; a tool support ring 30 having a central cavity 32 and supported by the housing 12 for slidably supporting the tool holding device 14; A tool support housing 38 is rotatably supported on the outside of the tool support ring 30, and the tool support housing 38 is fixed to the tool support ring 30 in the axial direction, and the tool support housing 38 is connected to the tool support housing 38. a retention mechanism 42 that allows rotation relative to the support ring 30;
and a shield 106 surrounding the end of the tool holding device 14 to prevent chips and polishing debris from entering the mechanism.
The tool support ring 30 has a rear end portion 34 with a thread on the outer periphery and a tip end, and a longitudinal throttle hole 48 is provided in the tool support housing 38. , a first groove 50 extending diametrically outward from the throttle hole 48, and the tool support ring 30 has a first groove 50 extending diametrically outward from the throttle hole 48 in the longitudinal direction.
In this tool support ring 30, there are
a second groove 52 extending diametrically outwardly alongside the first groove 50;
A retaining ring 54 is provided with a circumferential notch 56 for tightening diametrically inward when inserted into the longitudinal throttle hole 48 so that the retaining ring 54 is slidably engaged. 54 in its relaxed state, the first groove 50
expandable partially and diametrically into its first
It occupies a groove 50 in the first groove 50 and diametrically into the first groove 50 in order to slide across the tool support ring 30 and into the second groove 52. When expandable outwardly and into the second groove 52, the tool support housing 38 engages the first and second grooves 50.52, thereby causing the tool support housing 38 to 30 and prevents movement in the axial direction with respect to
The holding mechanism 42 is configured to allow free angle rotation with respect to the tool support ring 30,
The tool holding device 14 includes a tube 60 having a connecting rod end 62 and a barbed tool holding end 64, the tube 60 being slidably connected to the central cavity 32. The connecting rod side end 62 is a first spherical socket 68 having an outwardly enlarged through hole 70, and the connecting rod 2B is inserted through the outwardly expanded through hole 70. an enlarged spherical end portion 72 that complements the first spherical socket 50 and has a rod portion 74 extending and connected to a crank pin opening arrow formed on the crank pin 24; a threaded hole portion 78 formed in the intersecting crank pins 24; a threaded fixing member 80 that is screwed into the threaded hole portion 78 for fixing the rod portion 74 to the crank pin 24; and the expandable spherical surface. a second spherical socket 82 formed in the shaped end 72;
In such a tool holding device 14, the balls 84 are
a spring seat 86 which is in mating contact with the second spherical socket 82 and includes a third spherical socket 88; Each tool support 90 is provided with a threaded end 92 that engages the threaded tool holding end 64 such that a load in excess of the biasing force is applied to the tool support 90.
In order to avoid deactivation and damage of the reciprocating mechanism when subjected to A second combined invention is a hand-held reciprocating mechanism for a profiling board, in which a bullet 94 is extended between the tool support 90 and the spring seat 86 so as to be biased against each other; , a housing 12 and a tool holding device 14 supported by said housing 12 for reciprocating motion.
and a drive shaft 18 , which rotates on a shaft 20 perpendicular to the direction of reciprocating motion and is supported within the housing 12 by a pair of axially spaced bearings 22 . crank pin 2
4 and a connecting rod 28 operatively connecting the tool holding device 14, a drive device 16 including the crank pin 24 having a selectively adjustable rank arm allowing selective adjustment of reciprocating motion; Tool holding bag W
a tool support ring 30 having a center frame 32 supported by the housing 12 at a rear end 34 having a screw on the outer periphery; and a tool support housing 38 rotatably supported by the tool support ring 30; the tool support housing 38 is fixed to the tool support ring 30 in the axial direction; A holding mechanism 42 that allows the housing 38 to rotate in relation to the tool support ring 3o, and this holding mechanism 42
, the tool support ring 30 is attached to the tool support housing 3.
8, the tool support housing 38 can be assembled to the tool support ring 30, and the combination of the tool holding device 14 includes a pair of opposing flat surfaces 98 and the opposing flat surface. 98 and a slot 110 formed in the widening tip of the tool support housing 38 for supporting the lateral loads imposed on the tool support 90;
A third combined invention is a hand-held reciprocating mechanism for a die or a profiling board for finishing a rough surface, which substantially traverses the diameter-expanding tip 46. The present invention is a hand-held reciprocating mechanism for driving a polishing tool for finishing dies and other rough surfaces.

It includes a housing, a tool holding device supported by said housing for reciprocating movement, and a drive mechanism consisting of a drive shaft rotating on an axis perpendicular to the direction of reciprocating movement. The drive shaft is supported within the housing by a pair of axially spaced bearings and is mounted with a crank pin having a selectively adjustable rank arm for selectively adjusting reciprocating motion. ing. A connecting rod operably connects the crank pin and the tool holding device.

A tool support ring having a central frame is supported by the housing at its rear end which is threaded on its outer periphery. The tool support ring slidably supports the tool holding device for reciprocating movement. A tool support housing is rotatably supported by the tool support ring. The tool support housing has a rear end portion and a distal end portion having an enlarged diameter. A retention mechanism, including, for example, a retaining ring, axially secures the tool support housing to the tool support ring and allows the tool support housing to rotate relative to the tool support ring. It is provided. The retaining ring allows the tool support housing to be assembled to the tool support ring by inserting the tool support ring into the rear end of the tool support housing, and the retaining ring is configured to allow the tool support housing to be assembled to the tool support ring by inserting the tool support ring into the rear end of the tool support housing. was left completely uncovered to form a slot. A pair of opposing flat surfaces are formed in the tool holding device to abut the slots, and the pair of opposing flat surfaces extend substantially across the widening tip. There is.

This provides a large area bearing area between the tool holding device and the tool support housing to balance lateral loads without excessive wear. A shield covering the end of the tool holder prevents chips and debris from entering the reciprocating mechanism. This increases the durability of the device.

Embodiment In FIG. 1, reference numeral 10 indicates a hand-held reciprocating mechanism or profiling board which is one embodiment of the present invention.

This hand-held reciprocating mechanism lO includes a housing 12, a tool holding device 14, and a drive shaft 1 rotating around an axis 2o.
8 and a drive mechanism 16 including the drive mechanism 8. The tool holding device 14 is supported by the housing 12 for reciprocating movement and reciprocating perpendicular to the axis.

The drive shaft 18 is supported within the housing 12 by a pair of spaced apart bearings 22, and a crank pin 24 is configured at one end of the drive shaft. This crank bin 14 can rotate, and
Eccentric plug 2 with selectively adjustable reciprocating movement
6 is supported. A connecting rod 28 connects the crank pin 24 to the tool holding device 14 in a manner to be described in detail below.

A tool support ring 30 has a center frame 32, and is supported by the housing 12 by plated with a rear end 34 having an outer peripheral thread formed in a hole 36 of the housing 12.

] - The support housing 38 is slidable and rotated by the outer circumferential portion 40 of the tool support ring 30, and is axially mounted on the tool holding device 30 by a holding mechanism as will be described in detail later. is supported by The tool support housing 38 includes a rear end 44 and an enlarged distal end 46 . The retention mechanism 42 secures the tool support housing 38 to the tool support ring 30 and allows the tool support housing 38 to rotate relative to the tool support ring. Outer periphery 4
a longitudinal throttle hole 48 formed in the tool support housing 38 and a first groove 5 extending diametrically outwardly from the longitudinal throttle hole 48 for rotatably coupling to the tool support housing 38;
Consists of 0. The second groove 52 is formed by the tool supporting ring 3o.
This groove extends diametrically inward from the outer circumferential portion 40 of the tool support ring and is arranged in the same position as the first groove 50 in the axial direction. be. The retaining ring 54 is connected to the first ring 50 and the second ring 50. a52
The retaining ring 54 has a circumferential notch 56 (see FIG. 4) on its circumference for inserting the retaining ring 54 into the longitudinal throttle hole 48. It is formed so that it can be tightened diametrically inward. This retaining ring 54 is
In its relaxed state, it can expand diametrically to partially occupy the first groove 5o. The retaining ring 54
can also expand diametrically outwardly beyond its relaxed state so that its retaining ring 54 can enter the second groove 52 across the outer periphery 40 of the tool support ring. When this retaining ring 54 enters the second groove 52, it simultaneously enters the first groove 50. The tool support housing 38 is engaged with the second 452, and the tool support housing 38 is engaged with the tool support ring 3o.
This prevents the tool support housing 38 from moving in the axial direction in relation to the tool support ring 30, and allows the tool support housing 38 to freely rotate in relation to the tool support ring 30. A chamfered portion 58 is formed at the tip of the tool support ring 30, and this is because the tool support ring 30 is coupled to the retaining ring 54, and the outer peripheral portion 40 of the tool support ring 30 is connected to the retaining ring 54. It is intended to fit externally.

As shown in FIG. 2, the tool holding device 14 has a connecting rod side end 62.
and a threaded tool holder side end 64, and the tool holder side end 64 includes a thread 66 formed therein along the tool holder side end. There is. The connecting rod end 62 of the tube 60 includes a first spherical socket 68 with an outwardly expandable opening lower 0 providing clearance for rotation of the connecting rod 28. The connecting rod 28 includes an expandable spherical end 72 formed at the end of a rod portion 74 . The rod portion 74 extends through the outwardly expandable open lower portion 0 and engages with a crank pin opening arrow formed in the crank pin 24 . A threaded hole 78 is formed in the crank pin 24 to receive a threaded fixing member 80 to which the rod portion 74 is coupled. The expandable spherical end 72 has a ball 8.
4 (to receive the second spherical socket 82
is formed. For this ball 84 to abut, the spring seat 86 has a third spherical socket 88 . Tool support 90 includes a threaded end 92 for threaded engagement with tool holding end 64 . Biasing means comprising a spring 94 urge the spring seat 86 against the ball 84 and the ball 84 against the second spherical socket 82 and the expandable spherical end against the first The tool 5 support body 90 and the spring seat 86 are provided between the tool 5 support 90 and the spring seat 86 in order to urge the tool 5 to abut against the spherical sockets 68 of the tool 5, respectively. If a load is placed on the tool support that exceeds the biasing force of its spring 90, this spring 90 limits the load that can be placed on the connecting rod 28, causing the drive motor to stop and the reciprocating mechanism to stop. To prevent malfunctions.

A ball 84 which is an abutment between the second spherical socket and the third socket throat allows the second spherical socket and one half of said ball and the third spherical socket and the other half of said ball substantially reducing friction between the
Free rotation of the connecting rod is achieved.

As shown in FIG. 3, tool support 90 includes a tool coupling end 96 having a pair of opposing flat surfaces 98. As shown in FIG. As shown in FIG. 2, there is a tool shank (not shown).

) is configured with a tool holding frame 100 for receiving the receptacle. A screw hole 102 is provided intersecting the tool holding frame 100, and a screw 104 is provided therein for appropriately fixing the tool.

As shown in FIG. 1, a shield 106 is provided to prevent chips and cutting debris from entering the reciprocating mechanism. Fixing means 108 are provided for attaching the shield 106 to the tool support 90. This fixing means 10B consists of a screw 110 fitted into a screw hole 112 formed in this tool support 90, and the screw 1
The head 111 of No. 10 holds the shield 106 so as to abut against the tool support 90.

As shown in FIG. 4, a slot 110 is formed in the diameter-expanding tip 46 so as to fit snugly and slide against the pair of opposing flat surfaces 98, and the tool support 90 is provided with support means for lateral loads, thus allowing the reciprocating mechanism to accommodate large lateral loads without undue wear. The pair of opposing planes define the ball 84. which is positioned within the second spherical socket and the third spherical socket. The slot 110 with the expandable spherical end 72 abutting the first spherical socket
This substantially increases the durability and wear resistance of the reciprocating mechanism according to the invention.

Conventional profiling machines have been subject to substantial wear and have been prone to early failure due to the rather large distance between the tool and the bearing surface that supports the lateral loads of the tool. Furthermore, in the conventional device, the effective support range for receiving lateral loads is limited. The present invention using the retainer 42 allows for the use of a wide bearing surface located adjacent to the tool to carry the lateral loads. This reduces the overhanging loads and also increases the bearing surface that supports the loads. This results in a substantial increase in the operational life of the reciprocating mechanism.

As shown in FIG. 3, the tool support 90 has a
A handle 120 is configured for rotation. The handle 120 consists of a body 122 secured to the tool support housing 38. Its outer edge is roughened for convenient grip in the hands of the operator. A pair of finger rests are configured with protrusions 126 to provide the operator with an additional lever and convenience for rotating the tool holding device with his or her fingers.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the reciprocating mechanism of the invention, FIG. 2 is a longitudinal sectional view of the tool holding device of the invention taken along line 2-2 in FIG. 1, and FIG. , a cross-sectional view taken along the line 3-3 in Fig. 1 and seen from the tool holding device, and Fig. 4 is an exploded view of the tool supporting ring, the tool holding device, and the tool supporting housing. FIG. In the figure, 12 is a housing, 14 is a tool holding device, 16 is a drive device, 20 is a shaft perpendicular to the reciprocating direction, 18
24 is a drive shaft, 24 is a crank pin, 28 is a connecting rod, 30 is a tool support ring, 32 is a central cavity, 34 is a rear end portion with a thread on the outer periphery, 38 is a tool support housing, and 40 is a tool support ring. 42 is a holding mechanism, 46 is a distal end portion that can be expanded in diameter,
48 is a longitudinal throttle hole, 50 is a first groove, 52 is a second groove, 54 is a retaining groove, 56 is a peripheral notch, 60 is a tube, 62
64 is a connecting rod side end, 64 is a tool holding end, 68 is a first spherical socket, 70 is a through hole that expands outward, 72 is an expandable spherical end, 74 is a rod body, and 76 is a crank pin. an opening, 78 a screw hole, 80 a screwed fixing member, 82 a second spherical socket, 84 a ball, 86 a spring seat,
88 is a third spherical socket, 88 is a third spherical socket, 92 is a threaded end, 90 is a tool support, 92 is a barbed end, 94 is a bullet, and 98 is a pair of opposing sockets. plane, 10
6 is a shield, and 110 is a slot. Patent Applicant: Joseph Janos Danksik, Attorney, Patent Attorneys: Tetsuya Mori, Patent Attorney, Yoshiaki Naito, Patent Attorney, Patent Attorney Yoshiaki Shimizu Submitted Statement of Amendment to Fiduciary Procedures (daytime) 1. Patent Application No. 57-162090 2, Title of Invention Reciprocating Mechanism for Tracing Board 3, P+li +I': Relationship with 1'- Patent Applicant: Joseph Janos Dunk Mr. Schick Nichiei Patent Office and f6698) 41.1: Satoshi Mori
Ya (and 3 other people) 5. Attached to [] of the order for stopping the order January 25, 1988 (shipment date) 6. Issuance IN increased by supplementary IF 7. Amendment 1. Description 8. Contents of the amendment Specification 1 no Jyo (no change in content) 312-

Claims (6)

[Claims] (1) a housing, a tool holding device supported by the housing for reciprocating motion, a drive shaft rotating on an axis perpendicular to the direction of the reciprocating motion, and a tool holding device mounted on the drive shaft for providing the reciprocating motion; a drive device comprising a crank bin, a connecting rod operably connecting the crank pin and the tool holding device; a tool support axle supported by a housing; a tool support housing rotatably supported on the outside of the tool support axle; and axially fixing the tool support housing to the tool support axle; and a holding mechanism that allows the tool support housing to rotate relative to the tool support axle, and a holding mechanism that surrounds an end of the tool holding device to prevent chips and abrasive debris from entering the mechanism. A hand-held reciprocating mechanism for the profiling board, consisting of a shield for the purpose. (2) A housing, a tool holding device supported by the housing for reciprocating motion, a drive shaft that rotates on an axis perpendicular to the direction of the reciprocating motion, and a drive shaft that provides the reciprocating motion; a drive device comprising an attached crank pin, a connecting rod operably connecting the crank bin and the tool holding device, and a central cavity for slidably supporting the tool holding device; a tool support axle supported by the housing; a tool support housing rotatably supported on the outside of the tool support axle; and a tool support housing rotatably supported by the tool support axle; a retention mechanism for securing and permitting rotation of the tool support housing relative to the tool support axle, and surrounding an end of the tool retention device;
The tool support shaft element serves as a shield to prevent chips and polishing debris from entering the mechanism, and the tool support shaft element has a rear end with a thread on the outer periphery and a tip end, and the tool support The housing has an elongated bore hole and a first groove extending diametrically outward from the bore hole, and the tool support ring is slidably coupled to the longitudinal throttle hole. and within the tool support ring there is a second groove extending diametrically outwardly in alignment with the first groove and ζ for sliding engagement with the first and second grooves. is provided with a retaining ring having a circumferential notch for tightening diametrically inward when inserted into the longitudinal throttle hole, and in its relaxed state, the retaining ring holds the first groove. expandable into, partially and diametrically occupying the first groove;
It is also expandable diametrically outwardly into the first groove and into the second groove to slide across the tool support ring and into the second groove. when inserted into the first and second grooves, thereby preventing the tool support housing from moving axially relative to the tool support ring, and preventing the tool support housing from moving axially relative to the tool support ring. A hand-held reciprocating mechanism for a profiling board that allows free angle rotation relative to the gold. (3) a housing, a tool holding device supported by the housing for reciprocating motion, a shaft, a crank pin attached to the drive shaft for providing the reciprocating motion, and a crank pin for operating the crank pin and the tool holding device; a drive device comprising a connecting rod connected to the tool holding device; a tool supporting ring having a central cavity and supported by the housing for slidably supporting the tool holding device; . a tool support housing rotatably supported on the outside of the tool support ring; and the tool support housing is fixed to the tool support ring in the axial direction; a holding mechanism that allows rotation relative to the metal; and a shield that surrounds the end of the tool holding device to prevent chips and abrasive debris from entering the mechanism; has a peripherally threaded rear end and a distal end, and the tool support housing has a longitudinal throttle hole and a first diametrically outwardly extending aperture in the tool support housing. a groove, the tool support ring is in sliding engagement with the longitudinal throttle hole, and the tool support ring has a first groove extending diametrically outwardly in alignment with the first groove. 2 grooves, and a circumferential cut for slidingly engaging the first and second grooves and squeezing diametrically inward when inserted into the longitudinal throttle hole. A retaining ring having a notch is provided which, in its relaxed state, is expandable into said first groove and partially and diametrically occupies said first groove. and this slides across said one support shaft mantle,
expandable diametrically outwardly into the first groove to enter into the second groove and, upon entering the second groove, connect the first and second grooves; engaging the tool support housing, thereby preventing the tool support housing from moving axially relative to the tool support ring, and allowing free angular rotation relative to the tool support ring. wherein the tool holding device includes a tube having a connecting rod end and a threaded tool holding end, the tube sliding into the central cavity. and the connecting rod side end is a first spherical socket having an outwardly enlarged through hole, and the connecting rod extends through the outwardly enlarged through hole. Equipped with a rod part connected to a crankpin opening formed in the crankpin,
an enlarged spherical end portion that complements the first spherical socket; a threaded hole portion formed in the crank pin that intersects the crank pin opening; and a screw hole portion for fixing the rod portion to the crank pin. The tool holding device further includes a threaded fixing member that is threaded into the threaded hole portion and a second spherical socket formed in the expandable spherical end. is in mating contact with the second spherical socket, and has a spring seat including a third spherical socket such that the third spherical socket is in mating contact with the ball, and also has the screw. Each tool support is provided with a threaded end that engages with the tool holding end, and the reciprocating mechanism is stopped and damaged when a load exceeding the biasing force is applied to the tool support. In order to avoid this, the tool support and the spring seat are arranged in such a way that the spring seat, the ball, the expandable spherical end, and the first spherical socket are urged against each other. A hand-held reciprocating mechanism for a profiling board with a bullet extending between them. (4) The tool support has a pair of opposing planes located diametrically outward from the axis and parallel to the axis, a tool holding cavity formed at the center of the tool support, and a screw for fixing the tool. a tool coupling end portion having an enlarged diameter and facing the tool holding end portion provided with the screw, and a tool coupling end portion having an enlarged diameter and including a tapped hole in which the screw is screwed together and intersecting the screw in the tool holding cavity; A hand-held reciprocating mechanism for a profiling board as claimed in claim 3, comprising fixing means. (5) The tool support housing includes a diameter-expanding tip portion and a slot formed in the diameter-expanding tip portion so as to comfortably slide and abut against the pair of flat surfaces, and A patent characterized in that the slots abutting the pair of planes extend substantially beyond the expanding end and feature a large area to support the imposed lateral loads to prevent wear on the pair of planes. A hand-held reciprocating mechanism for a profiling board according to claim 3. (6) a housing, a tool holding device supported by the housing for reciprocating motion; and a tool holding device that rotates on an axis perpendicular to the direction of the reciprocating motion, and the housing is supported by a pair of bearings spaced apart in the axial direction. a crank pin supported in the holder and having a selectively adjustable rank arm for selectively adjusting reciprocating motion; a connecting rod operably connecting the crank pin and the tool holding device; a drive shaft, a tool support ring slidably supporting the tool holding device and having a central cavity supported by the housing at a rear end having a thread on the outer periphery; and a tip having an enlarged diameter at the rear end. a tool support housing rotatably supported by the tool support ring; the tool support housing is axially fixed to the tool support ring, and the tool support housing is rotatably supported by the tool support ring; a holding mechanism that allows the tool support ring to rotate relative to the tool support housing, the holding mechanism being configured to allow the tool support housing to rotate relative to the tool support housing by inserting the tool support ring into the rear end of the tool support housing. The combination of tool support portions is adapted to be assembled to a support ring, the combination of said tool support portions having a pair of opposing planes and a pair of opposing planes for conveniently abutting said opposing planes to support a lateral load imposed on said tool support. , the tool support housing has a slot formed at the diameter-expanding tip, and the plane facing the slot substantially includes a die or a rough surface that crosses the diameter-expanding tip. Hand-held reciprocating mechanism of the profiling board for finishing.