TW201922384A - Locking device applied to a power tool seat by using the locking bolt and the positioning bolt to form a combination - Google Patents

Abstract

A locking device comprises a base, a fixing member having a pin hole and a locking hole, a locking bolt and a positioning bolt. The locking bolt has a locking portion screwed into the screw hole, an operating portion, a shaft bolt portion disposed between the locking portion and the operating portion and passing through the pin hole, and a bolt hole disposed in the shaft bolt portion. The positioning bolt has a screw locking portion screwed into the locking hole, a bolt head connected to one side of the screw locking portion, and a driving portion. When the driving portion is operated, the bolt head can be embedded in the bolt hole, and the locking bolt can be fixed and limited along a first axis, so that the locking member is stably fixed relative to the base. By using the locking bolt and the positioning bolt to form a bolt combination, the two members stacked on each other can be stably combined.

Description

Locking device

The present invention relates to a screw lock structure, and more particularly to a lock device suitable for use on a power tool holder.

Most of the general numerical control processing machines use a power turret (for example, TW Certificate No. M526937, No. I458576, etc.), and the power turret is mounted on a pedestal with a cutter head on the cutter head. A power tool holder with many different tools is installed. When the cutter head and the power tool holder are rotated relative to the base through a power source, the purpose of the knife selection can be achieved.

Although the above-mentioned power turret can achieve the intended processing purpose, the general power tool holder is locked to the cutter head by a plurality of bolts. When the machining operation is performed, the bolts may easily be loosened due to vibration, which may affect The precision of the machining can even cause damage to the tool.

Accordingly, it is an object of the present invention to provide a locking device that can improve the bonding stability between opposing members and can improve machining accuracy and avoid component damage.

Another object of the present invention is to provide a bolt combination that provides a secure bond between opposing members.

Thus, the locking device of the present invention comprises a base, a fixing member, a locking bolt and a positioning bolt. The base has a surface, and a screw hole recessed from the surface and extending along a first axis, the fixing member is disposed on one side of the base and has a first side opposite to the surface, an opposite a second side of the first side, a pin hole extending along the first axis and communicating from the first side to the second side, and a second axis extending along a second axis intersecting the first axis a locking hole, the locking hole and the pin hole communicate with each other, the locking hole has an internal thread portion, the locking bolt is disposed along the first axis, and has a locking portion screwed into the screw hole of the base An operating portion opposite to the locking portion, a shaft portion disposed between the locking portion and the operating portion and passing through the pin hole, and a shaft portion disposed along the second portion and along the second portion a bolt hole disposed on the axis, the positioning bolt is disposed along the second axis, and has a screw lock portion screwed into the inner thread portion of the lock hole, and a side connected to the screw lock portion along the second axis a plug head, and a driving portion corresponding to one of the screw portion and the plug head, operating the drive The bolt head can be embedded in the bolt hole and that the lock bolt fixed stopper generated along the first axis.

The bolt assembly of the present invention comprises a locking bolt and a positioning bolt. The locking bolt is disposed along a first axis and has a screw-shaped locking portion, an operating portion opposite to the locking portion, and a shaft portion disposed between the locking portion and the operating portion And a bolt hole disposed on the shaft portion and disposed along a second axis intersecting the first axis. The positioning bolt is disposed along the second axis, and has a screw-shaped screw locking portion, a bolt head connected to the side of the screw locking portion along the second axis, and a corresponding to the screw locking portion and the A driving portion of one of the plug heads, the driving portion is configured to embed the plug head in the bolt hole, and the locking bolt is caused to have a fixed limit along the first axis.

The utility model has the advantages that: the plug head is embedded in the bolt hole, the locking bolt can be fixed along the first axis, and the fixing member is fixedly fixed relative to the base when the lock When the fixing device and the bolt combination are applied to the power tool holder, the joint stability between the base and the fixing member can be improved and the machining precision can be improved and the component damage can be avoided.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

1 and 2, a first embodiment of a locking device 1 of the present invention includes a base 100, a fixing member 200, a locking bolt 30, a positioning bolt 40, and a set of locking bolts. 30 elastic washer 50.

The base 100 (e.g., a cutter head) has a surface 101 and a threaded bore 102 recessed by the surface 101 and extending along a first axis L1.

The fixing member 200 (for example, a power tool holder) is positioned on a side of the base 100. The fixing member 200 has a first side surface 201 opposite to the surface 101 and a second side surface 202 opposite to the first side surface 201. a side plane 203 connected between the first side surface 201 and the second side surface 202, a pin hole 10 extending along the first axis L1, and a locking hole 20 extending along the second axis L2. The first side surface 201 has an indication portion 204 disposed on a side of the pin hole 10. The second axis L2 intersects the first axis L1 perpendicularly. The pin hole 10 is communicated from the first side surface 201 to the second side surface 202. The lock hole 20 is in perpendicular communication with the pin hole 10, and the lock hole 20 has an operation hole segment 21 on the side of the first axis L1 and communicates from the side plane 203 to the pin hole 10, and a The internal thread portion 22 on the other side of the first axis L1. Since the transmission mechanism inside the power tool holder is not the focus of the present invention, the fixing member 200 is not described except for the pin hole 10 and the keyhole 20, and the internal structure diagram is not shown.

The locking bolt 30 is disposed along the first axis L1 and has a screw-shaped locking portion 31 screwed into the screw hole 102 of the base 100, and an operating portion 32 opposite to the locking portion 31. a bolt portion 33 disposed between the locking portion 31 and the operating portion 32 and extending through the pin hole 10, and a bolt hole 34 disposed on the shaft bolt portion 33 and disposed along the second axis L2 And a shoulder 35 disposed at the junction of the locking portion 31 and the boss portion 33. The boss portion 33 has a top surface 330, and an outer peripheral surface 331 formed by the periphery of the top surface 330 along the first axis L1 and surrounding the first axis L1. The top surface 330 has two intervals of 180 degrees and Corresponding to the index 332 of the indicating portion 204, the bolt hole 34 has two tapered hole segments 341 respectively recessed from opposite sides of the outer peripheral surface 331. The tapered hole segments 341 communicate with each other, and the tapered hole segments 341 are connected to each other. Each has a small diameter end 342 that is closer to the first axis L1, and a large diameter end 343 that is opposite to the small diameter end 342 along the second axis L2 and corresponds to the outer peripheral surface 331. The operation portion 32 is recessed in the shape of a groove from the top surface 330.

The positioning bolt 40 is disposed along the second axis L2, and has a screw-shaped screw portion 41 screwed into the inner thread portion 22 of the locking hole 20, and is connected to the screw lock along the second axis L2. A plug head 42 on one side of the portion 41, and a drive portion 43 corresponding to the plug head portion 42. The plug head 42 has a frustoconical shape and has a wide end 421 coupled to the screw portion 41, a narrow end 422 opposite the wide end 421 along the second axis L2, and a corresponding to the narrow The end portion 422 is perpendicular to the end surface 423 of the second axis L2. The driving portion 43 is recessed from the end surface 423 and extends along the second axis L2. The driving portion 43 is non-circular in cross section perpendicular to the second axis L2. (This embodiment is a regular hexagonal hole). The length of the internal thread portion 22 of the lock hole 20 corresponding to the second axis L2 is greater than the length of the screw portion 41 of the positioning bolt 40.

The elastic washer 50 is sleeved on the shoulder 35 of the locking portion 31 of the locking bolt 30 and the pivot portion 33. The elastic washer 50 can be pressed against the surface 101.

With the above structure, when the fixing member 200 is to be locked to the base 100, as shown in FIG. 3, the positioning bolt 40 is first screwed in with respect to the internal thread portion 22, and the end surface 423 is withdrawn from the The pin hole 10. Then, the first side surface 201 of the fixing member 200 abuts against the surface 101 of the base 100, and the pin hole 10 is aligned with the screw hole 102, and the locking portion 31 of the locking bolt 30 is further fixed. After the pin hole 10 is inserted into the screw hole 102, the elastic washer 50 can be pressed against the surface 101, and an indicator 332 of the locking bolt 30 is aligned with the indication of the fixing member 200. At the portion 204, it is indicated that the tapered hole segments 341 of the bolt holes 34 are aligned with the lock holes 20. At this time, the plug head 42 is still in a separated state along the second axis L2 with respect to the corresponding tapered hole segment 341, and the top surface 330 of the locking bolt 30 protrudes only slightly to the second side surface 202 ( Or may be located between the second side 202 and the second axis L2, not shown.

As shown in FIG. 4, when the operator extends into the driving hole portion 21 and inserts into the driving portion 43 by an operating tool (a hexagonal wrench as shown by the phantom line in FIG. 4), the positioning bolt 40 can be operated. The screw portion 22 is retracted relative to the internal thread portion 22, and the bolt head portion 42 is embedded in the corresponding tapered hole portion 341, and the locking bolt 30 is caused to have a fixed limit along the first axis L1. When the plug head 42 is embedded in the corresponding tapered bore section 341, the narrow end 422 approaches the small diameter end 342, and the wide end 421 approaches the large diameter end 343.

Therefore, the fixing member 200 is provided with a pin hole 10 extending along the first axis L1, a locking hole 20 extending along the second axis L2, and the locking bolt 30 can be inserted through the pin hole. 10, the plug head 42 of the positioning bolt 40 can be nested in the corresponding tapered hole section 341, so that the fixing member 200 can be firmly fixed to the base 100 even if applied to the power tool holder. The locking bolt 30 is also not loosened by vibration, which ensures the precision of the machining and the service life of the component and the tool.

In addition, the main effects produced by the present invention have been described above, and the secondary effects that can be produced by the present invention are explained as follows:

1. The tapered hole segments 341 are tapered, and the plug head 42 has a frustoconical shape, and the plug head 42 has an automatic alignment when nested relative to the corresponding tapered hole segment 341. Acting, and with the arrangement of the resilient washer 50, it is possible to absorb slight errors in the manufacture or assembly of the component or component and to allow the plug head 42 to be accurately aligned with the corresponding tapered bore segment 341.

In this embodiment, the top surface 330 of the locking bolt 30 protrudes only slightly from the second side surface 202, and the positioning bolt 40 is also hidden in the locking hole 20, so the locking bolt 30 and the positioning bolt 40 does not interfere with the operation of other locking elements or the relative operation between the mechanisms.

The bolt hole 34 of the locking bolt 30 is provided with the tapered hole segments 341 communicating with each other. The shape and structure of the tapered hole segments 341 are mirrored by the first axis L1, and the locking is performed. The bolts 30 have less orientation restrictions during installation and are easier to install.

It is worth mentioning that the combination of the locking bolt 30 and the bolt of the positioning bolt 40 can be applied not only to the base 100 and the fixing member 200 but also to the power tool holder. Other technical areas of solid bonding of stacked components.

As shown in FIG. 5 and FIG. 6 , the second embodiment of the locking device 1 ′ of the present invention is substantially the same as the first embodiment, and includes the base 100 , a fixing member 200 ′, the locking bolt 30 , and a locking bolt 30 . The positioning bolt 40 ′ and the elastic washer 50 sleeved on the locking bolt 30 . The difference from the first embodiment is that the locking hole 20' of the fixing member 200' is not provided with the operating hole portion, and the internal thread portion 222' is located between the side surface 203' and the pin hole 10'. The screw portion 41' of the positioning bolt 40' has an end surface 411' corresponding to the side plane 203, and the driving portion 43' corresponds to the screw portion 41' and is recessed by the end surface 411' and along the second The axis L2 extends, and the driving portion 43' has a regular hexagonal cross section perpendicular to the second axis L2. The driving portion 43 ′ of the positioning bolt 40 ′ can insert the bolt head 42 ′ into the tapered hole segment 341 corresponding to the bolt hole 34 , and the fixing bolt 30 can be fixed along the first axis L1 . Bit. Therefore, the second embodiment of the locking device 1' of the present invention can achieve the same objects and effects as the first embodiment.

7 and FIG. 8, a third embodiment of the locking device 1" of the present invention is substantially the same as the first embodiment, and includes the base 100, the fixing member 200, the locking bolt 30, and a positioning. The bolt 40" and the elastic washer 50 sleeved on the locking bolt 30. The positioning bolt 40" has a screw-shaped screw-locking portion 41" screwed into the inner thread portion 22 of the locking hole 20, and a bolt head connected to the screw-locking portion 41" along the second axis L2. The portion 42" and a driving portion 43" corresponding to the plug head 42". The plug head 42 has a frustoconical shape and has a narrow end 422" that is coupled to the screw portion 41", a wide end 421" opposite the narrow end 422" along the second axis L2, and a The drive portion 43" is recessed from the end surface 423" and extends along the second axis L2 corresponding to the end surface 423" of the wide end 421" and perpendicular to the second axis L2.

The driving portion 43" for operating the positioning bolt 40" can embed a part of the plug head 42" in the tapered hole section 341 corresponding to the bolt hole 34, and the other part corresponds to the operating hole section 21, and the lock is made The fixing bolt 30 produces a fixed limit along the first axis L1. Therefore, the third embodiment of the locking device 1" of the present invention can achieve the same objects and effects as the first and second embodiments.

In summary, the locking device 1 and the bolt combination of the present invention have a simple overall structure, are easy to manufacture, and can surely produce a stable combination of the two stacked members, and can truly achieve the object of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Locking device

100‧‧‧Base

101‧‧‧ surface

102‧‧‧ screw holes

L1‧‧‧first axis

200‧‧‧Fixed parts

211‧‧‧ first side

202‧‧‧ second side

203‧‧‧ side plane

204‧‧‧Instruction Department

L2‧‧‧second axis

10‧‧‧ pinhole

20‧‧‧Keyhole

21‧‧‧Operating hole section

22‧‧‧Threaded Department

30‧‧‧Lock bolts

31‧‧‧Locking

32‧‧‧Operation Department

33‧‧‧ shaft plug

330‧‧‧ top surface

331‧‧‧ outer perimeter

332‧‧ indicators

34‧‧‧Bolt hole

341‧‧‧Cone hole section

342‧‧‧Small path end

343‧‧‧ Large diameter end

35‧‧‧ shoulder

40‧‧‧ Positioning bolt

41‧‧‧ screw lock

42‧‧‧ bolt head

421‧‧‧ Wide end

422‧‧‧narrow end

423‧‧‧ end face

43‧‧‧ Drive Department

50‧‧‧Flexible washers

200’‧‧‧Fixed parts

203’‧‧‧Side plane

10’‧‧‧ pinhole

20’‧‧‧Keyhole

222'‧‧‧Threaded Department

40’‧‧‧ Positioning bolt

41’‧‧‧ screw lock

411’‧‧‧ end face

42’‧‧‧

43’‧‧‧ Drive Department

40"‧‧‧ Positioning bolts

41"‧‧‧ Screw lock

42" ‧ ‧ bolt head

43”‧‧‧ Drive Department

421"‧‧‧ Wide end

422"‧‧‧ narrow end

423"‧‧‧ end face

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a perspective view of a first embodiment of the locking device of the present invention; FIG. 3 is a schematic cross-sectional view showing one of the first embodiment; FIG. 4 is a cross-sectional view showing a first embodiment of the first embodiment; FIG. Figure 6 is a schematic cross-sectional view of a second embodiment of the second embodiment; Figure 7 is an exploded perspective view of a third embodiment of the locking device of the present invention; and Figure 8 is a third embodiment of the locking device A schematic cross-sectional view.

Claims (10)

A locking device comprising: a base having a surface, and a screw hole recessed from the surface and extending along a first axis; a fixing member disposed on one side of the base and having a relative a first side of the surface, a second side opposite to the first side, a pin hole extending along the first axis and communicating from the first side to the second side, and a first and a first a locking hole extending from the second axis intersecting the axis, the locking hole communicating with the pin hole, the locking hole having an internal thread portion; a locking bolt disposed along the first axis and having a screw lock thereon a locking portion in the screw hole of the base, an operating portion opposite to the locking portion, a shaft bolt portion disposed between the locking portion and the operating portion and passing through the pin hole, and a setting a bolt hole disposed along the second axis; and a positioning bolt disposed along the second axis and having a screw lock portion screwed into the inner thread portion of the lock hole, along the a second axis is coupled to the plug head on one side of the screw lock portion, and a corresponding one of the screw lock portion and the bolt A driving portion of one of the heads, the driving portion is configured to embed the plug head in the bolt hole, and the locking bolt is caused to have a fixed limit along the first axis. The locking device of claim 1, wherein the bolt portion of the locking bolt has an outer peripheral surface formed around the first axis, the bolt hole having at least one tapered hole portion recessed by the outer peripheral surface The tapered bore segment has a small diameter end that is adjacent to the first axis, and a bolt end portion of the positioning bolt that is opposite to the small diameter end and corresponds to the large diameter end of the outer peripheral surface Descriptively conical and having a wide end that is coupled to the screw portion and a narrow end opposite the wide end along the second axis, the narrow end approaching when the plug head is embedded in the bolt hole At the small diameter end, the wide end approaches the large diameter end. The locking device of claim 2, wherein the fixing member further has a side plane that is connected between the first side surface and the second side surface, and the internal thread portion of the locking hole is located at the first axis On the side, the locking hole also has an operating hole section on the other side of the first axis and communicated by the side plane to the pin hole. The locking device of claim 3, wherein the bolt head of the positioning bolt further has an end surface corresponding to the narrow end, the driving portion is recessed from the end surface and extends along the second axis, the driving portion is vertical The second axial axis has a non-circular cross section, and the locking device further comprises a set of elastic washers disposed at a joint portion of the locking bolt and the shaft bolt portion, and the elastic washer is pressed against the surface . The locking device of claim 4, wherein the inner thread portion of the locking hole of the fixing member has a length corresponding to the second axis that is greater than a length of the screw portion of the positioning bolt, and the screw portion along the internal thread portion When screwed in or retracted, the plug head can be nested or separated relative to the bolt hole along the second axis. The locking device of claim 2, wherein the fixing member further has a side plane that is connected between the first side and the second side, the internal thread portion of the locking hole is located at the side plane Between the pin holes. The locking device of claim 6, wherein the screwing portion of the positioning bolt has an end surface corresponding to the side plane, the driving portion corresponding to the screw locking portion and recessed by the end surface and along the second The axis extends, and the driving portion has a non-circular cross section perpendicular to the second axis. A bolt assembly comprising: a locking bolt disposed along a first axis and having a screw-shaped locking portion, an operating portion opposite to the locking portion, a locking portion and the operation a bolt portion between the portions, and a bolt hole disposed on the shaft bolt portion and disposed along a second axis intersecting the first axis; and a positioning bolt disposed along the second axis and having a a screw-shaped screw locking portion, a plug head connected to one side of the screw locking portion along the second axis, and a driving portion corresponding to one of the screw locking portion and the plug head, operating the driving portion The plug head can be inserted into the bolt hole, and the locking bolt can be fixed along the first axis. The bolt assembly of claim 8, wherein the bolt portion of the locking bolt has an outer peripheral surface formed around the first axis, the bolt hole having at least one tapered hole portion recessed by the outer peripheral surface, The tapered bore segment has a small-diameter end that is adjacent to the first axis, and a large-diameter end that is opposite to the small-diameter end and corresponds to the outer peripheral surface along the second axis, and the bolt head of the positioning bolt is Truncated and having a wide end coupled to the screw portion and a narrow end opposite the wide end along the second axis, the narrow end approaching when the plug head is embedded in the bolt hole At the small diameter end, the wide end approaches the large diameter end. The bolt assembly of claim 1, wherein the driving portion of the positioning bolt has a non-circular cross section perpendicular to the second axis.