JP7253836B2 - Tool holder holding device in tool magazine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tool holder holding device in a tool magazine, and more particularly to a tool holder holding device in a tool magazine that facilitates manual insertion and removal of tool holders.

Generally, a tool magazine is for storing a plurality of tool holders or toolings, and each tool holder or tooling is used to insert a cutting tool. The processing machine takes out a necessary tool holder from a tool magazine, moves it to a processing location, and performs processing with a cutting tool.

In order to firmly hold the cutting tool and absorb the forces during machining, the tool holder is usually made of a very rigid material and has a considerable weight. Therefore, when the tool holder is stored in the tool magazine, it must be positioned with a positioning means having sufficient force so that the tool holder does not loosen and drop.

The most common locating means is to provide a receiving hole in the side wall of the tool sleeve, in which a resilient member and a locating steel ball are installed. By abutting the positioning steel ball on the rear end position of the ball head of the tool holder, movement to the outside of the tool holder is avoided. However, since the tool holder is very heavy, unless the elastic member has a considerably large elastic force, it cannot be avoided that the tool holder very easily comes out against the elastic force of the elastic member. In addition, from this fact, when it is desired to remove or insert the tool holder, a large mechanical force must be applied to push the tool holder. cannot be pushed into

US Pat. No. 6,201,301 discloses a similar structure. In this structure, the slide sleeve is elastically installed by horizontally installing the elastic member. The slide sleeve has a space for inserting the steel ball. By using the elastic force of the elastic member to shift the steel ball from the space in which the steel ball is to be immersed, the steel ball maintains its projection toward the tool holder. On the other hand, when it is desired to take out the tool holder or to insert the tool holder into the tool sleeve, the hook on the outside of the slide sleeve is used to resist the elastic force of the elastic member, and the space for inserting the steel ball is extended up to the steel ball. move. Then, the steel ball is immersed and the tool holder can be freely inserted and removed.

However, in the above structure as well, in order to properly position a very heavy tool holder, an elastic member with an extremely large elastic force must be selected. For this reason, it is still necessary to connect a large power to the hook, and it cannot be operated manually. Moreover, the structure of the member becomes extremely complicated, which not only increases the cost but also increases the probability of failure.

Taiwan Utility Model No. M606496

SUMMARY OF THE INVENTION One of the objects of the present invention is to provide a tool holder holding device in a tool magazine that facilitates releasing of a positioning member and facilitates insertion, positioning, or withdrawal of a tool holder.

To achieve the above objectives, the present invention provides a tool holder holding device in a tool magazine for receiving and positioning tool holders installed in the tool magazine. Opposed ends of the tool holder are provided with a cutting tool receiving portion and a positioning portion, respectively. The positioning portion includes a stem portion and a large diameter portion. The large-diameter portion is located at one end of the handle portion on the far side from the cutting tool housing portion. Moreover, the outer diameter of the large diameter portion is larger than the outer diameter of the handle portion. Also, the tool holder holding device in the tool magazine includes a main body, at least one elastic member, at least one positioning member, a stopper and moving means.

The body defines an axial direction and is provided with a receiving space along the axial direction. At least one accommodation hole is formed in the main body radially outward from the inner wall of the accommodation space. The at least one accommodation hole communicates with the accommodation space. Both ends of the accommodation space of the main body that face each other in the axial direction are defined as a first end and a second end, respectively. The at least one receiving hole is located between the first end and the second end. The tool holder is inserted into the first end of the accommodation space at the positioning portion. The at least one elastic member and the at least one positioning member are accommodated in the at least one accommodation hole. One end of the at least one elastic member elastically contacts the at least one positioning member to push the at least one positioning member toward the accommodation space. The at least one positioning member receives an elastic force from the at least one elastic member and is partially positioned within the accommodation space under normal conditions. The stopper is provided in the accommodation space and is slidable between a positioning position and a release position along the axial direction. The stopper contacts the positioning portion of the tool holder. When the stopper is in the positioning position, the stopper is located between the at least one receiving hole and the second end. In addition, the at least one positioning member is partially positioned within the accommodation space, thereby preventing the large-diameter portion of the tool holder from slipping out toward the first end. When the stopper is in the released position, the stopper at least partially overlaps the at least one receiving hole in the radial direction, thereby pressing the at least one positioning member toward the at least one elastic member. The moving means is used to drive the stopper from the positioning position to the releasing position.

Thus, in the present invention, by pushing the positioning member into the receiving hole using the stopper, the tool holder can be released from the constraint of the positioning member and extracted. At this time, the stopper stops at the positioning member portion. When the tool holder is to be inserted again, the tool holder can be directly used to push the stopper so that the tool holder can be retained again by the positioning member. In the process of releasing and positioning the cutting tool, the stopper retracts the positioning member in place of the tool holder, making it easier to insert and remove the cutting tool, saving labor.

FIG. 1 is a perspective view of the present invention. FIG. 2 is an exploded perspective view of the present invention. FIG. 3 is a cross-sectional view of the present invention, and A is a partially enlarged view. FIG. 4 illustrates the use of the present invention. FIG. 5 illustrates the use of the present invention.

Please refer to FIGS. 1-5 and 3A. The present invention provides a tool holder retention device in a tool magazine for receiving and positioning a tool holder 60 installed in the tool magazine. A cutting tool housing portion 61 and a positioning portion 62 are provided at opposite ends of the tool holder 60 . A cutting tool is accommodated in the cutting tool accommodating portion 61 . The positioning portion 62 includes a handle portion 621 and a large diameter portion 622 . The large diameter portion 622 is located at one end of the handle portion 621 on the far side from the cutting tool housing portion 61 . Moreover, the large diameter portion 622 has an outer diameter larger than that of the handle portion 621 and has a ball head shape. Also, the tool holder holding device in the tool magazine includes a main body 10, at least one elastic member 20, at least one positioning member 30, a stopper 40 and moving means.

The main body 10 defines an axial direction, and a receiving space 11 is opened along the axial direction. At least one accommodation hole 12 is formed in the main body 10 from the inner wall of the accommodation space 11 toward the outside in the radial direction. The at least one accommodation hole 12 communicates with the accommodation space 11 . Both ends of the housing space 11 of the main body 10 facing each other in the axial direction are defined as a first end and a second end, respectively. The at least one receiving hole 12 is located between the first end and the second end. The tool holder 60 is inserted at the positioning portion 62 into the first end of the accommodation space 11 . Specifically, the accommodation space 11 includes a large-diameter section 111 and a small-diameter section 112 . The large diameter section 111 is near the first end, and the small diameter section 112 is near the second end. The at least one receiving hole 12 communicates with the small diameter section 112 . A tapered section 113 is further connected between the large diameter section 111 and the small diameter section 112 . The inner diameter of the tapered section 113 is gradually reduced from one end near the large diameter section 111 to one end near the small diameter section 112 . The length and inner diameter of the large-diameter section 111, the small-diameter section 112, and the tapered section 113 may be set according to the standard of the tool holder to be accommodated.

The at least one elastic member 20 and the at least one positioning member 30 are accommodated in the at least one accommodation hole 12 . One end of the at least one elastic member 20 elastically contacts the at least one positioning member 30 to push the at least one positioning member 30 toward the accommodation space 11 . The at least one positioning member 30 receives elastic force from the at least one elastic member 20 and is partially positioned within the accommodation space 11 under normal conditions. For example, the at least one elastic member 20 may be a spring and the at least one positioning member 30 may be a ball. However, it is not limited to this. Moreover, preferably, the inner diameter of one end of the at least one accommodation hole 12 near the accommodation space 11 is gradually reduced. This prevents the at least one positioning member 30 from completely coming out of the at least one receiving hole 12 . In addition, for the convenience of processing, a fitting ring may be further fitted in the accommodation space of the main body. The at least one receiving hole portion is formed in the body and partially extends through the mating ring. In addition, one end of the gradually decreasing inner diameter of the at least one accommodating hole is located in the fitting ring.

The stopper 40 is provided in the accommodation space 11 and is slidable between the positioning position and the release position along the axial direction. The stopper 40 contacts the positioning portion 62 of the tool holder 60 . When the stopper 40 is in the positioning position, the stopper 40 is located between the at least one receiving hole 12 and the second end (ie within the small diameter section 112). In addition, the at least one positioning member 30 is partially positioned within the accommodation space 11 to prevent the large-diameter portion 622 of the tool holder 60 from slipping out toward the first end. Conversely, when the stopper 40 is in the released position, the stopper 40 at least partially overlaps the at least one receiving hole 12 in the radial direction, thereby moving the at least one positioning member 30 to the at least one elastic force. Press against member 20 . At this time, the stopper 40 receives elastic force from the elastic member 20 and is radially positioned by the positioning member 30, so that free movement in the axial direction becomes difficult. Preferably, at least one positioning recess 42 is recessed in the outer peripheral wall of the stopper 40 . The at least one positioning recess 42 corresponds to the at least one positioning member 30 . When the stopper 40 is at the released position, the at least one positioning member 30 is partially fitted into the at least one positioning recess 42 and abuts thereon. As a result, since the stopper 40 is almost positioned, when the stopper 40 does not face the position of the positioning member 30, the stopper 40 receives a strong elastic force from the elastic member 20 and is displaced. A situation in which the effect of pushing open is lost is avoided. In addition, in this embodiment, the cut-off portion 1121 is formed by contracting the inner diameter of one end of the small-diameter section 112 of the accommodation space 11 farther from the large-diameter section 111 inward. This prevents the stopper 40 from slipping out of the second end of the accommodation space 11 in the axial direction. Further, the moving means is used for driving the stopper 40 to move from the positioning position to the releasing position. For example, the moving means is an air cylinder 50 or a hydraulic cylinder, mounted outside the second end of the body 10 . The moving means selectively contacts the end surface of the stopper 40 facing the second end, thereby pushing the stopper 40 into the release position. When the stopper 40 is at the released position, the air cylinder 50 can contract backward. Therefore, when the next cutting tool is inserted, the stopper 40 is pushed backward by the pushing force from the tool holder 60 and returns to the positioning position.

In this embodiment, the at least one receiving hole 12 includes at least four receiving holes 12 . These receiving holes 12 are spaced apart from each other. Also, the at least one elastic member 20 and the at least one positioning member 30 include at least four elastic members 20 and at least four positioning members 30 . This enhances the positioning effect of the tool holder 60 . In addition, uniform distribution of the positioning members 30 and elastic members 20 avoids uneven force applied to the tool holder 60 . However, the number of accommodation holes, elastic members, and positioning members may be adjusted as necessary.

In addition, most of the large diameter portion 622 of the tool holder 60 has a ball head-like structure with a slightly contracted end. Therefore, in order to cooperate with this structure and to be advantageous in pushing the positioning member 30 open, in the present embodiment, the flange 41 is formed by protruding the peripheral edge of one end of the stopper 40 facing the first end. forming The radial width of the flange 41 gradually decreases towards the free end. As a result, the inner surface of the flange 41 is formed with an outwardly widening conical surface that engages with the outer surface of the large diameter portion 622 of the tool holder 60 . Therefore, the flange 41 has the same shape and is inserted between the large-diameter portion 622 of the tool holder 60 and the inner wall of the housing space 11 , which is more advantageous for pushing the positioning member 30 open and is caught. is avoided.

In actual use, referring to FIGS. 4 and 5, when the tool holder 60 is positioned by these positioning members 30, the stopper 40 is positioned at the positioning position and is positioned on the small diameter section 112. To position. When the air cylinder 50 pushes the stopper 40 toward the large-diameter portion 622 of the tool holder 60, the stopper 40 pushes open the positioning members 30, and then the large-diameter portion Instead of 622 , the positioning member 30 can continue to be pushed into the receiving hole 112 . Subsequently, when it is desired to insert the tool holder 60 into the accommodation space 11 again and position it, the large diameter portion 622 comes into contact with the stopper 40 and pushes the stopper 40 toward the second end. can be done. When the stopper 40 separates from the positioning member 30, the large-diameter portion 622 also passes through the vicinity of the positioning member 30. Therefore, by pushing further, the positioning member 30 can be brought into contact with the handle portion 621. . Accordingly, the large-diameter portion 622 is smoothly inserted and positioned without pushing the positioning member 30 open against the elastic force of the elastic member 20 in the radial direction. Therefore, it is very convenient.

Thus, the tool holder holding device in the tool magazine of the present invention resists the elastic force of the elastic member while being assisted by the stopper, so it is advantageous for inserting and removing the tool holder. Therefore, the user can complete the inserting operation of the cutting tool by pushing the stopper manually or by means of small power. Ease of completing the cutting tool insertion operation is highly desired by industry participants. However, the above-described embodiments merely describe and detail the technical content of the present invention, and the scope of the rights in this case shall conform to the scope of claims described later.

REFERENCE SIGNS LIST 10 main body 11 accommodation space 111 large diameter section 112 small diameter section 1121 blocking section 113 taper section 12 accommodation hole 20 elastic member 30 positioning member 40 stopper 41 flange 42 positioning recess 50 air cylinder 60 tool holder 61 cutting tool accommodation section 62 positioning section 621 handle Part 622 large diameter part

Claims (10)

A tool holder holding device in a tool magazine, which is installed in the tool magazine to accommodate and position the tool holder, and opposite ends of the tool holder are respectively provided with a cutting tool accommodation part and a positioning part, and the positioning The portion includes a handle and a large-diameter portion, the large-diameter portion being located at one end of the handle farther from the cutting tool housing, and the outer diameter of the large-diameter portion being the outer diameter of the handle. larger than
The tool holder holding device in the tool magazine is
A main body defining an axial direction and having a housing space along the axial direction, wherein at least one housing hole is formed radially outward from an inner wall of the housing space, At least one receiving hole communicates with the receiving space, opposite ends of the receiving space of the main body in the axial direction are defined as a first end and a second end, respectively, and the at least one receiving hole communicates with the first end. a main body positioned between one end and the second end and into which the tool holder is inserted into the first end of the housing space at a positioning portion;
at least one elastic member and at least one positioning member accommodated in the at least one accommodation hole, wherein one end of the at least one elastic member elastically abuts the at least one positioning member, One positioning member is pushed toward the accommodation space, and the at least one positioning member receives an elastic force from the at least one elastic member, and under normal conditions, a portion of the positioning member is positioned within the accommodation space. at least one elastic member and at least one positioning member;
A stopper is provided in the housing space, is slidable along the axial direction between a positioning position and a release position, and abuts against the positioning portion of the tool holder, wherein the stopper is at the positioning position. In one case, the stopper is positioned between the at least one receiving hole and the second end, and the at least one positioning member is positioned partially within the receiving space such that the stopper is positioned in the direction of the first end. When the stopper is in the released position, the stopper radially overlaps the at least one receiving hole at least partially to prevent the at least one tool holder from coming off. a stopper that presses one positioning member toward the at least one elastic member;
A tool holder holding device including moving means for driving the stopper to move from the positioning position to the releasing position. The accommodation space includes a large-diameter section and a small-diameter section, the large-diameter section is located near the first end, the small-diameter section is located near the second end, and the at least one accommodation hole communicates with the small-diameter section. and said positioning position is also located within said small diameter section. A tapered section is further connected between the large-diameter section and the small-diameter section, and the inner diameter of the tapered section gradually decreases from one end closer to the large-diameter section toward one end closer to the small-diameter section. A tool holder holding device in a tool magazine according to claim 2. 2. An inner diameter of one end of said at least one accommodation hole closer to said accommodation space is gradually reduced so as to avoid a situation in which said at least one positioning member completely slips out of said at least one accommodation hole. A tool holder holding device in a tool magazine according to . 2. A tool holder holding device in a tool magazine according to claim 1, wherein said positioning member is a ball and said elastic member is a spring. A flange is formed by protruding a peripheral edge of one end of the stopper that faces the first end, and the radial width of the flange is gradually reduced toward the free end to form the flange. 2. A tool holder retainer in a tool magazine according to claim 1, wherein the inner surface is formed with an outwardly flared conical surface. 2. The moving means according to claim 1, wherein the moving means is an air cylinder or a hydraulic cylinder, which is installed outside the second end of the body and selectively abuts one end of the stopper facing the second end. tool holder holding device in the tool magazine of . The at least one receiving hole is at least four receiving holes, the receiving holes are spaced apart from each other, and the at least one elastic member and the at least one positioning member are the at least four elastic members and at least one positioning member. 2. A tool holder retainer in a tool magazine according to claim 1, comprising four said positioning members. At least one positioning recess is provided in the outer peripheral wall of the stopper, the at least one positioning recess corresponds to the at least one positioning member, and when the stopper is in the release position, the at least 2. A tool holder holding device in a tool magazine according to claim 1, wherein one positioning member is partially fitted into and abuts said at least one positioning recess. In order to prevent the stopper from slipping out of the second end of the accommodation space in the axial direction, a blocking portion is formed by contracting an inner diameter of one end of the small-diameter section farther from the large-diameter section. A tool holder holding device in a tool magazine according to claim 2.

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