JP7448809B2 - brooch hanging tool - Google Patents

Description

The present invention relates to a broach hanging tool that is a hanging tool for a broach cutter.

Broaching has the advantages of high efficiency, simple work, and little variation in processing accuracy, and is an indispensable processing method for mass production. For example, when forming an internal female thread on the inner peripheral surface of a cylindrical member, a broach cutter having cutting edges formed on the outer peripheral surface is used. A broach cutter has a structure with many cutting edges arranged in the cutting direction, and is a heavy tool depending on its size. For example, Patent Document 1 discloses a broach cutter standing and tilting device. The broach cutter standing and tilting device of Patent Document 1 is used to raise or tilt a broach cutter used in a vertical broaching machine between a horizontal state and a vertical state using a hoist. By using the broach cutter standing and tilting device as disclosed in Patent Document 1, the posture of the heavy broach cutter can be changed in a stable state.

Japanese Patent Application Publication No. 2008-183694

As exemplified in Patent Document 1, a groove (recess) is formed on the outer peripheral surface of the shank of the broach cutter. After inserting the hanging jig into the shank of the broach cutter, the hanging jig and the shank are fixed with a fixing member such as a pin. However, currently, confirmation of whether the fixing member has been inserted to the correct position depends on the operator's judgment. Therefore, if a confirmation error or omission occurs, there is a risk that the broach cutter may fall from the hanging jig when the broach cutter is placed in an upright position.

In view of such problems, the present invention provides a broach hanging tool that can prevent the broach cutter from falling from the hanging tool without depending on the operator's judgment, and can improve safety. The purpose is to

In order to solve the above problems, a typical configuration of the broach hanging tool according to the present invention is a broach hanging tool that is a hanging tool for a broach cutter, and the broach hanging tool includes a hook unit and a pin unit. The hook unit has a main body into which the shank of the broach cutter is inserted, and a hook hook attached to the main body, and the pin unit passes through the main body to regulate movement of the shank of the broach cutter. The hook hook is rotatable with respect to the main body, and the hook is rotatable with respect to the main body, and the hook is attached to the rotation axis. The regulating plate has a bar that protrudes on the opposite side of the part, and a depression is formed on the upper edge of the regulating plate, and when the fixing pin is inserted to the correct position with respect to the main body, the regulation plate is inserted into the depression and the bar. When the positions of the hooks match, the hook can be erected, and the regulating plate is locked by the bar.

According to the above configuration, only when the fixing pin is inserted into the main body of the hook to the correct position, the positions of the recess and the bar portion match and the hook can be erected. Thereby, the regulation plate is locked by the bar part, and it is possible to prevent the broach cutter from falling from the main body part when it is in the upright state. Therefore, it is possible to prevent the broach cutter from falling from the broach hanging tool without relying on the operator's judgment, and it is possible to improve safety.

It is preferable that the hook unit has a baffle plate arranged inside the hook hanger in a position where the hook hanger is folded down. According to this configuration, when the hook hook is in the folded position, the hook of the hoist crane cannot be hung on the hook hook. Therefore, it is possible to improve safety.

The pin unit preferably has a retaining pin that prevents the hook unit from coming off from the main body. Thereby, the state in which the pin unit is attached to the hook unit can be maintained. Therefore, it is not necessary to attach them every time work is performed, and it is possible to easily handle them.

According to the present invention, it is possible to provide a broach hanging tool that can prevent the broach cutter from falling from the hanging tool without depending on the operator's judgment, and can improve safety.

It is an overall perspective view of the broach hanging tool of this embodiment. It is an exploded perspective view of a broach hanging tool. It is a detailed view of the broach hanging tool of this embodiment. It is a detailed view of the broach hanging tool of this embodiment. 5 is a cross-sectional view of FIGS. 3 and 4. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in these embodiments are merely illustrative to facilitate understanding of the invention, and do not limit the invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to omit redundant explanation, and elements not directly related to the present invention are omitted from illustration or explanation. omitted.

FIG. 1 is an overall perspective view of a broach hanging tool 100 of this embodiment. FIG. 2 is an exploded perspective view of the broach hanging tool 100. A broach hanging tool 100 shown in FIGS. 1 and 2 is a hanging tool for a broach cutter 200. The broach hanging tool 100 includes a hook unit 110 and a pin unit 130.

The hook unit 110 includes a main body 112 into which the shank 202 of the broach cutter 200 is inserted, and a hook hook 114 attached to the main body 112. A hook 302 of a hoist crane 300 is hooked onto a hooking portion 122 of the hook hook 114. Note that the hooking portion 122 may be a loop-shaped wire as shown in the figure, a triangular or square wire, or a plate with a hole. Further, the main body portion 112 is formed with a plurality of insertion holes 116 into which the fixing pins 132 of the pin unit 130 are inserted. Although four sets of fixing pins 312 and insertion holes 116 are shown in this embodiment, one or more sets are sufficient.

The pin unit 130 includes a fixing pin 132 that is inserted into the insertion hole 116 to pass through the main body 112 and restrict the movement of the constricted portion 204 of the shank 202 of the broach cutter 200, and a fixing pin 132 that is located outside the main body 112 and fixed. It has a regulating plate 134 arranged in parallel with the pin 132. By inserting the fixing pin 132 into the insertion hole 116, the hook unit 110 and the pin unit 130 are brought into a combined state.

Further, in this embodiment, as shown in FIG. 2, a pair of regulating plates 134 are connected by a connecting plate 138, and a handle 140 is attached to the connecting plate 138. This makes it possible to comfortably insert the fixing pin 132 into the insertion hole 116. In this embodiment, two regulating plates 134 are provided on both sides of the main body portion 112, but there may be only one regulating plate 134.

As a feature of the brooch hanging device 100 of this embodiment, the hook hook 114 is rotatable with respect to the main body portion 112, and the barring portion 124 projects on the opposite side of the hook hooking portion 122 with respect to the rotation shaft 118. have. On the other hand, the regulation plate 134 of the pin unit 130 has a recess 136 formed in its upper edge.

3 and 4 are detailed views of the broach hanging tool 100 of this embodiment. FIG. 3A is a side view of the broach hanging tool 100 in a state where the fixing pin 132 is not completely inserted into the insertion hole of the main body portion 112. FIG. 3(b) is a diagram of the broach hanging tool 100 of FIG. 3(a) observed from a different direction. FIG. 3(c) is a sectional view taken along the line AA in FIG. 3(b), and shows the shank 202 of the broach cutter 200 being inserted into the main body portion 112.

FIG. 4A is a side view of the broach hanging tool 100 in a state where the fixing pin 132 is completely inserted into the insertion hole 116 of the main body portion 112. FIG. 4(b) is a sectional view taken along line BB in FIG. 4(a). FIG. 4(c) is a sectional view taken along line CC in FIG. 4(b). FIG. 5 is a cross-sectional view of FIGS. 3 and 4. FIG. 5(a) is a sectional view taken along line DD in FIG. 4(b). FIG. 5(b) is a sectional view taken along line EE in FIG. 3(b).

As shown in FIG. 3(a), when the fixing pin 132 of the pin unit 130 is not completely inserted into the insertion hole 116 of the hook unit 110, the regulating plate 134 is in contact with the side surface of the bar portion 124. Become. Therefore, the hook hook 114 cannot be rotated.

When attaching the broach hanger 100 to the broach cutter 200, the shank 202 of the broach cutter 200 is inserted into the hole 126 inside the main body shown in FIG. 3(c). Then, the fixing pin 132 of the pin unit 130 is completely inserted into the insertion hole 116 of the hook unit 110. In this way, when the fixing pin 132 is inserted into the main body part 112 to the correct position, the positions of the recess 136 and the bar part 124 are aligned. As a result, as shown in FIG. 4(a), the hook hook 114 can be erected, and the regulating plate 134 is locked by the bar portion 124. At this time, as shown in FIGS. 4(b) and 4(c), a fixing pin 132 is placed in the constricted portion 204 of the broach cutter 200.

As explained above, according to the broach hanging tool 100 of the present embodiment, only when the fixing pin 132 is inserted to the correct position with respect to the main body part 112 of the hook unit 110, the position of the recess 136 and the bar part 124 is determined. When they match, the hook hook 114 can be erected. By locking the regulating plate 134 with the bar portion 124, it is possible to prevent the broach cutter 200 in the upright state from falling from the main body portion 112. Therefore, it is possible to prevent the broach cutter 200 from falling from the broach hanging tool 100 without depending on the operator's judgment, and to improve safety.

Moreover, in the broach hanging tool 100 of this embodiment, as shown in FIG. 3(a), the hook unit 110 has a baffle plate 128 arranged inside the hook hook 114 in the position where the hook hook 114 is folded down. As a result, the hook 302 of the hoist crane 300 cannot be hung on the hook hook 114 when the hook hook 114 is in the tilted position, that is, when the regulation plate 134 is not locked by the bar part 124. Therefore, it is possible to improve safety.

Furthermore, in the broach hanging tool 100 of this embodiment, as shown in FIG. 4(b), the pin unit 130 includes, in addition to the fixing pin 132, a retaining pin 142 that prevents the hook unit 110 from coming off from the main body 112. has. Specifically, as shown in FIG. 5(a), a sliding hole 110a into which a retaining pin slides is formed in the main body. A stepped portion 110b is formed in the sliding hole 110a. The diameter of the sliding hole 110a on the side closer to the connecting plate 138 than the stepped portion 110b is narrower than the diameter of the head portion 142a of the retaining pin 142.

According to the above configuration, when the pin unit 130 is pulled out in a direction away from the hook unit 110, the head portion 142a of the retaining pin 142 is caught on the stepped portion 110b as shown in FIG. 5(b). Therefore, the state in which the pin unit 130 is attached to the hook unit 110 can be maintained. Therefore, it is not necessary to attach them every time work is performed, and it is possible to easily handle them.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes and modifications within the scope of the claims, and these naturally fall within the technical scope of the present invention. Understood.

INDUSTRIAL APPLICATION This invention can be utilized as a broach hanging tool which is a hanging tool for a broach cutter.

DESCRIPTION OF SYMBOLS 100... Brooch hanging tool, 110... Hook unit, 110a... Sliding hole, 110b... Step part, 112... Main body part, 114... Hook hook, 116... Insertion hole, 118... Rotation shaft, 122... Hook hooking part, 124... Bolt portion, 126... Hole, 128... Baffle plate, 130... Pin unit, 132... Fixed pin, 134... Regulating plate, 136... Recess, 138... Connecting plate, 140... Handle, 142... Retaining pin, 142a... Head part, 200...Broach cutter, 202...Shank, 204...Neck part, 300...Hoist crane, 302...Hook

Claims (3)

A brooch hanging tool that is a hanging tool for a brooch cutter,
The brooch hanging tool includes a hook unit and a pin unit,
The hook unit is
a main body into which the shank of the broach cutter is inserted;
and a hook attached to the main body,
The pin unit is
a fixing pin that passes through the main body and restricts movement of the shank of the broach cutter;
a regulating plate located outside the main body and arranged in parallel with the fixing pin;
The hook hook is rotatable with respect to the main body portion, and has a bar portion that protrudes on the opposite side of the hook hook portion with respect to the rotation axis,
The regulation plate has a recess formed in its upper edge,
When the fixing pin is not inserted into the main body part to the correct position, the regulation plate comes into contact with the side surface of the bar part, so that the regulation plate prevents the hook hook from rotating from the fallen position. regulates,
When the fixing pin is inserted into the main body part to the correct position, when the position of the recess matches the position of the bar, the hook hanger rotates and becomes able to stand up. A broach hanging tool, characterized in that the regulating plate is locked by being inserted into a recess of the regulating plate . The brooch hanger according to claim 1, wherein the hook unit has a baffle plate disposed inside the hook when the hook is folded down. The broach hanging tool according to claim 1 or 2, wherein the pin unit has a retaining pin that prevents the hook unit from coming off from the main body.

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