JP4161089B2 - Gun barrel polishing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gun barrel polishing device, and more particularly to a novel improvement for polishing a grooving groove like a new article by sliding each convex portion of a plurality of grindstone bodies against a grooving groove in the gun barrel. .
[0002]
[Prior art]
Conventionally, as a barrel polishing apparatus for this type of barrel, the configuration shown in FIG. 11 has been adopted. That is, what is denoted by reference numeral 1 in FIG. 11 is a roller-shaped brush body, and a plurality of adapters 3 and loading tools 4 are provided on the handle 2 having a long shape connected to the brush body 1. . Therefore, the brush body 1 is loaded into the gun cavity 6 of the barrel 5, and the brush body 1 is rotated and moved in the axial direction by using the loading tool 4 to clean the inside of the ridge groove 7 in the barrel 5. It was. Further, as a power drive type using a brush, a configuration disclosed in Japanese Patent Laid-Open No. 10-122791 has been proposed.
[0003]
[Problems to be solved by the invention]
Since the conventional barrel polishing apparatus is configured as described above, the following problems exist. That is, simply cleaning the inside of the barrel of the gun barrel with the brush body only removes the dirt on the surface of the gun barrel, and does not remove the fixed matter of about several tens of μm formed on the inner wall by shooting, resulting in a reduction in the inner diameter of the gun barrel. The cannonball was unstable, causing a reduction in shooting accuracy. Further, since this loading tool is a manual work by a plurality of workers, the work is extremely difficult. In addition, the above-described conventional configuration of the power drive type is easy to work, but since it is a brush, it has been difficult to perform sufficient cleaning as described above.
[0004]
The present invention has been made in order to solve the above-described problems. In particular, the grooving groove is made new by bringing each convex portion of the plurality of grindstone bodies into sliding contact with the grooving groove in the gun barrel. An object of the present invention is to provide a gun barrel polishing apparatus which is similarly polished.
[0005]
[Means for Solving the Problems]
A barrel polishing apparatus according to the present invention is a cylindrical support body having a hexagonal shape in a longitudinal shape, a plurality of grindstone bodies provided at outer peripheral positions of the cylindrical support body, and formed in an uneven shape on each of the grindstone bodies. A rod-shaped grindstone holding body for holding each grindstone body in a gun barrel polishing apparatus provided with a plurality of convex portions, wherein each convex portion is slidably contacted with a grooving groove formed on an inner wall of the gun barrel . The grindstone body and the grindstone holding body are entirely provided in a holding hole formed in a wall portion of each side of the hexagonal side of the cylindrical support body, and can be projected and retracted via an elastic body. The shape is a T-shape, and the grindstone holder is slidably contacted with a taper member provided in the cylindrical support body so as to be axially movable, and each grindstone body is moved in the radial direction by the axial movement of the taper member. Along the flange of the cylindrical support along the workpiece A configuration in which the pressing force of the grindstone body to a certain gun barrel can be adjusted by the urging force of the elastic body.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of a gun barrel polishing apparatus according to the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
In FIG. 1, what is indicated by reference numeral 1 is a polishing body provided on a cylindrical support 10 having a hexagonal shape, and this polishing body 1 is composed of a plurality of grindstone bodies 11 as shown in FIG. Has been. The rod-shaped grinding wheel holder 12 of the grinding body 11 is retractable held via the elastic member 12b into the holding hole 13 of the tubular support 10 is urged by the elastic body 12b, the The holding holes 13 are arranged in the radial direction on the walls of the hexagonal sides 10 </ b> A of the cylindrical support body 10, so that each grindstone body 11 can be projected and retracted along the radial direction A. . The grindstone body 11 and the grindstone holder 12 are T-shaped as shown in FIGS. 2 and 3.
[0007]
Guide members 3 and 3d are provided at one end of the cylindrical support 10 and the inner ring body 19 at the other end of the cylindrical support 10, and a columnar shape is formed in the cavity 14 of the cylindrical support 10. The formed taper member 15 is provided so as to be movable in the axial direction B, and is configured such that the inner end 12 a of the grindstone holding body 12 of each grindstone body 11 is in sliding contact with the taper member 15.
[0008]
A cylindrically formed handle 2 is connected to one end of the guide member 3 of the cylindrical support 10, and a plurality of the handles 2 are connected in a multi-stage shape, so that the length of the gun barrel 5 is increased. The length can be freely adjusted accordingly.
A feed wheel 16 is provided at an end portion of the handle 2, and a rod member 17 connected to the feed wheel 16 is coaxially disposed in the handle 2 and a taper member 15 through a screw portion 18. It is connected to the. When one end of the inner ring body 19 is screwed to the handle 2 and the handle 2 is held and the feed wheel 16 is rotated, the taper member 15 is axially moved along the axial direction B via the rod member 17 and the screw portion 18. It is configured to be movable. Since the inner end 12 a of each grindstone holder 12 is in sliding contact with the tapered surface of the taper member 15, each grindstone body 11 is moved in the radial direction of the cylindrical support 10 by the movement of the taper member 15 in the axial direction B. The pressing force of the grindstone 11 against the gun barrel 5 can be adjusted by the bias of the elastic body 12b.
[0009]
The surface of the grindstone 11 is formed in a concavo-convex shape to form a plurality of convex portions 11a and concave portions 11b, and each of the convex portions 11a slides into a grooving groove 7 (shown in FIG. 11) in the gun barrel 5. It is comprised so that it may contact | connect, and each grindstone body 11 rotates along the grooved groove 7 with the cylindrical support body 10 by the movement of the axial direction B of this grindstone body 11, and cleans and grind | polishes each grooved groove 7 It is configured to be able to.
Further, in the other form of FIG. 1 shown in FIG. 4, a cylindrical handle 10 is provided with a long handle 2 at one end, and the tip of a bar member 17 provided in the handle 2 so as to freely enter and exit is tapered. A feed wheel 16 is rotatably connected to the rear end of the rod member 17 via a threaded portion 100, and the rod member 17 is freely moved in and out in the direction of the arrow B ′ by the rotation of the feed wheel 16. It is configured to be able to.
A biasing elastic member 101 made of a spring or the like for biasing the taper member 15 toward the feed wheel 16 is provided in the cavity 14 at the tip end position of the taper member, and the taper member 15 is moved by the feed wheel 16. This prevents misalignment. 4 that are the same as those in FIG. 1 are assigned the same reference numerals, and descriptions thereof are omitted.
[0010]
Next, FIG. 5 and FIG. 6 are other forms of the manual configuration shown in FIG. 1 described above, and the guide members 3b, 3c and the like and the connection member 20 are newly added to the cylindrical support body 10 and the grindstone body 11. 21 is attached, both ends 22a and 22b of a wire 22 made of metal or the like are connected, the abrasive body 1 is inserted into the barrel 5 as shown in FIGS. 5 and 6, and the wire 22 is placed on the muzzle 5a side. By engaging the power-driven traction means 23 and the idler 24 provided on the turret 5b side of the barrel 5 and rotating the drive motor 25 of the traction means 23 forward and backward, The polishing body 1 can be moved along the axial direction B, and the ridge groove 7 in the gun barrel 5 can be cleaned and polished by pulling with the wire 22.
[0011]
Next, the configuration shown in FIG. 7 to FIG. 9 is another form in which the manual configuration shown in FIG. 1 is powered, and a guide member 3d and an inner ring are newly added to the cylindrical support 10 and the grindstone 11. The body 19a and the like are attached, and a roller 30 made of rubber, etc., a power transmission means 31 made up of a power transmission means 31 and a motor 32 are connected to one guide member 3d. The inside can be cleaned and polished by self-propelled. As shown in FIGS. 8 and 9, the roller 30 is configured such that the peripheral surface is inclined along the inner wall shape of the gun barrel 5, and the power transmission means 31 is connected to the rotating shaft 33 of the motor 32. A pinion 34 to be connected and a gear 35 meshing with the pinion 34 are configured.
Further, the taper member 15 is configured to be movable in the axial direction along the axial direction B by a screw portion 41 as a manually moving means that can be manually rotated.
[0012]
Next, the configuration shown in FIG. 10 is another form in which the operation of moving the taper member 15 in the axial direction in the self-propelled configuration shown in FIG. 7 is changed from a manual type to a power type. That is, the motor 50 is provided on the other inner ring body 19b, and the rotation shaft 51 of the motor 50 and the screw shaft 15a of the taper member 15 are connected by the male / female fitting type sinking key 52. And the taper member 15 can be moved along the axial direction B. The motor 50, the rotary shaft 51, the screw shaft 15a, and the sink key 52 constitute a power moving means 60.
[0013]
【The invention's effect】
Since the barrel polishing apparatus according to the present invention is configured as described above, the following effects can be obtained. That is, since a plurality of grindstone bodies having a concavo-convex surface are provided so as to be able to protrude and retract on the cylindrical support body via an elastic body, the convex portion of the grindstone body is in sliding contact with the grooving groove of the gun barrel, The groove can be surely cleaned and polished, and a new-like gun cavity can be obtained. Moreover, each grindstone body can be made to appear and disappear via a taper member, and a grindstone body and a grooving groove | channel can be completely slidably matched according to a grinding | polishing state every moment. Moreover, the cylindrical support body which has this each grindstone body is not limited to manual operation, and power drive by a motor can be performed, and significant labor saving and efficiency improvement can be achieved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a gun barrel polishing apparatus according to the present invention.
FIG. 2 is a cross-sectional view taken along the line CC of FIG.
3 is an enlarged cross-sectional view of a main part of FIG.
4 is a configuration diagram showing another embodiment of FIG. 1. FIG.
FIG. 5 is a configuration diagram illustrating another embodiment of FIG. 1;
6 is an enlarged view showing a main part of FIG.
7 is a cross-sectional configuration diagram showing another embodiment of FIG. 1; FIG.
FIG. 8 is a plan sectional view of the main part of FIG.
9 is a cross-sectional view of the main part of FIG.
10 is a cross-sectional configuration diagram showing another embodiment of FIG. 9; FIG.
FIG. 11 is a perspective view showing a conventional gun barrel polishing apparatus.
[Explanation of symbols]
5 Gun barrel 7 Ridging groove 10 Tubular support 10a Flange
10A side 11 grindstone body 11a convex part 12 grindstone holder
12b Elastic body 13 Holding hole 15 Tapered member 16 Feed wheel 17 Bar member 18 Screw part 22 Wire 23 Pulling means 30 Roller 41 Manual moving means 60 Power moving means

Claims (1)

A cylindrical support body (10) having a hexagonal shape in a longitudinal shape , a plurality of grindstone bodies (11) provided at an outer peripheral position of the cylindrical support body (10), and each of the grindstone bodies (11) are formed. a plurality of protrusions formed in an uneven shape and (11a), said each convex portion (11a) is configured to slidably contact with the barrel rifling grooves (7) formed on the inner wall (5) barrel In the polishing equipment,
The rod-shaped grindstone holders (12) for holding the grindstone bodies (11) are formed on the wall portions of the hexagonal sides (10A) of the cylindrical support (10) and arranged in the radial direction. It is provided in the holding hole (13) so as to be able to protrude and retract through an elastic body (12b) , and the overall shape of the grindstone body (11) and the grindstone holding body (12) is T-shaped, and the cylindrical support The grindstone holder (12) is in sliding contact with a taper member (15) provided in the body (10) so as to be axially movable, and each grindstone body (11) is moved by the axial movement of the taper member (15). the radially along haunt freely relative to the flange (10a) of the tubular support (10), the pressing force the elastic body of the grinding wheel of the barrel (5) as the workpiece (11) A gun barrel polishing apparatus characterized by being configured to be adjusted by the bias of (12b).

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