CN114603384A

CN114603384A - Tool holder capable of executing safe locking

Info

Publication number: CN114603384A
Application number: CN202011429754.0A
Authority: CN
Inventors: 孙颖
Original assignee: CHEN SOUND INDUSTRIAL CO LTD
Current assignee: CHEN SOUND INDUSTRIAL CO LTD
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2022-06-10

Abstract

The invention provides a tool holder capable of executing safe locking of a tool, which is provided with two clamp bodies and a pin piece for clamping a tool holder on a base. Each clamp body is provided with a connecting part and a claw part, and the two connecting parts are overlapped and connected to the base through a shaft piece; the pin piece is arranged on the base in parallel with the shaft piece and penetrates through the connecting parts of the two clamp bodies at a position different from the position of the shaft piece. When the two clamp bodies are at the unlocking position, the two clamp bodies can swing relatively to make the knife handle open the two claw parts and be taken away or returned back; when the two clamping bodies are in the locking position of the pin piece, the two clamping bodies are limited not to pivot relatively, the knife handle is clamped and fixed by the two claw parts, and the safety function of the knife clamp locking knife can be achieved by the movement of the pin piece.

Description

Tool holder capable of executing safe locking

Technical Field

The present invention relates to a tool holder for holding a tool holder, and more particularly, to a tool holder capable of performing a safety lock.

Background

In order to smoothly replace the tools in the machining process of the central processing machine, a corresponding tool magazine is usually arranged beside the central processing machine, and the common tool magazines have a bamboo hat type, a disc type, a chain type, a tool magazine type and the like, so as to accommodate and plan the tools for various types of machining and the manufacturing process. The tool magazine is mainly used for placing tools of different machining types for the alternative use of a central machining tool in the process of machining a workpiece, and has become an indispensable important accessory of a central machining machine, and the design and innovation trend of the tool magazine is not inferior to that of the central machining machine.

A common tool holder structure, for example, taiwan patent No. 240497, is a tool clamping mechanism on a wheel drum type tool magazine, which discloses that two inner sides of a front edge of a pressure plate prop against a pulling surface of a tool by a knock pin, so as to prevent the tool from being thrown out of the tool magazine due to rapid rotation of a cutter head; for example, taiwan patent No. 324282 discloses a clamping seat structure of a tool magazine in a cutting machine, in which an elastic force is released by a reset component pressed at the ends of two clamping arms, and a rotation action is performed inwards by taking a round rod as an axis, so that the two clamping edges clamp and position the neck of a milling tool; for example, taiwan patent No. I293907 discloses a tool holder structure of a tool magazine, which discloses a containing chamber of a tool clamping portion having a clamping block, each clamping block being capable of clamping and supporting a ring groove concavely formed on a periphery of a tool bar when the tool bar is loaded, so as to firmly support the tool bar in a tool clamping seat.

However, although the above-mentioned conventional tool holder structures all have a clamping structure (such as the above-mentioned top pin, the reset component and the locking block) for positioning the tool holder, there is no safe tool locking mechanism that can prevent the tool holder from being opened inadvertently, and in practical use, the tool holder is often easily separated from the tool holder and falls off when an external force is applied, so how to solve the problem is the main focus of the present invention.

Disclosure of Invention

In order to solve the above problems, the present invention provides a tool holder capable of performing a safety lock to provide a safety lock mechanism, so as to ensure that the tool holder can be removed or returned only when the tool holder is in an unlocked state.

One embodiment of the present invention provides a tool holder for performing a safety lock, which is attached to a base for holding a tool holder. The cutter holder comprises two clamp bodies and a pin piece, each clamp body is respectively provided with a connecting part and a claw part, the two connecting parts are overlapped and are penetrated through by a shaft piece and can be pivotally connected with the base, and the two claw parts are oppositely pivotally swung along with the two connecting parts to be opened and closed; the pin piece is parallel to the shaft piece and arranged on the base, the pin piece penetrates through the two connecting parts at a position different from the shaft piece, the pin piece can move along the axial direction of the pin piece and is positioned at an unlocking position or a locking position relative to the base, the two clamps can swing relatively when the pin piece is positioned at the unlocking position, and the knife handle can open the two claw parts to be taken away or returned; the two clamp bodies are limited from swinging relative to each other when the pin piece is in the locking position, and the knife handle is clamped and fixed by the two claw parts.

Preferably, the two connecting portions each have a pin hole, the pin hole has an equal diameter and is aligned to be penetrated by the pin member when the two connecting portions are overlapped, the pin member has a large diameter section and a small diameter section, the large diameter section has a width equal to the diameter of the pin hole, the small diameter section has a width smaller than the pin hole, and the pin member is located in the two pin holes with the large diameter section in the locking position to limit the two clamps from pivoting; when the pin piece is in the unlocking position, the small-diameter section is arranged in at least one pin hole, and a gap is reserved, so that the two clamping bodies can pivot relatively through the gap.

Preferably, the base has a pin slot for accommodating the pin, the pin is abutted by a return elastic member in the pin slot, the pin is normally pushed by the return elastic member to be located at the locking position, and when the pin is displaced to the unlocking position, the return elastic member is compressed to generate a pre-force, so that the pre-force provides the pin to return to the locking position.

Preferably, the pin member further comprises a positioning seat locked to the base and stacked on the two connecting portions, the positioning seat has a through hole aligned with the pin hole, the through hole and the small diameter section have the same width, when the pin member is located at the locking position, the large diameter section is located in the pin hole, the small diameter section is located in the through hole and extends out of an exposed section, and when the exposed section is pressed into the through hole, the pin member is displaced from the locking position to the unlocking position.

Preferably, the pin member has a slot located at the exposed section, and a roller is pivoted to the exposed section in the slot, so that the roller is pressed into the through hole by being supported.

Preferably, the pin member has a lead angle at the top end of the exposed section, the lead angle is biased to one side of the slot and is in an arc curve, and the roller is exposed at the top end of the pin member and at the side having the lead angle.

Preferably, the pin member is recessed along an axial direction of the large-diameter section at one side of the large-diameter section to form a cut plane, and a stopper is arranged on the base beside the pin slot to be flush with the cut plane, so that the stopper limits the pin member not to deflect when the pin member is axially displaced relative to the base.

Preferably, the base has a plurality of the tool holders arranged side by side.

Preferably, each clip body has a return elastic member abutting against the outer side thereof, and at least one clip body compresses the abutted return elastic member when swinging outwards, and rebounds along with the abutted return elastic member to return and return.

Preferably, the elastic restoring element can be arranged between any two tool holders, wherein two ends of the elastic restoring element respectively abut against the clamp bodies of two adjacent tool holders; the elastic resetting piece can also be provided with a clamp body with one end abutting against one tool clamp of the tool holder and the other end abutting against a stop block arranged on the base.

Therefore, when the two clamping bodies are in the unlocking position of the pin piece, the knife handle can open the two claw parts to be taken out of the knife holder or return to the knife holder, but when the two clamping bodies are in the locking position, the two clamping bodies are limited to be incapable of relatively swinging, at the moment, the two clamping bodies are limited by the pin piece to ensure that the two claw parts cannot be opened, and the knife handle cannot be separated from the knife holder even if force is applied to the knife handle, so that the safety knife locking mechanism is adopted to avoid the problem that the knife handle is separated from the knife holder and falls off when being subjected to external force.

Drawings

Fig. 1 is a schematic view of a tool holder of an embodiment of the present invention mounted on a drum magazine along with a base.

Fig. 2 is a perspective view of the holder according to the embodiment of the present invention mounted on the base.

FIG. 3 is an exploded view of a knife clip of FIG. 2 in position on a base.

FIG. 4 is a partial cross-sectional view of the toolholder taken at section line 4-4 of FIG. 1, with the pin member in the locked position.

FIG. 5 is a partial cross-sectional view of FIG. 1 at the toolholder taken at section line 5-5.

FIG. 6 is a schematic view of an embodiment of the present invention with the spindle moved toward the toolholder to a position where the tool holder is removed.

Fig. 7 is a schematic view of the pin member of fig. 4 axially displaced to an unlocked position.

FIG. 8 is a schematic view of the two clamp bodies of FIG. 5 with the pin in the unlocked position and the jaws spread apart to remove or return the handle.

FIG. 9 is a schematic view of an embodiment of the present invention carried on a spindle and returned to a tool holder.

Detailed Description

To facilitate the explanation of the present invention, the following description will be made with reference to specific embodiments. Various objects in the embodiments are illustrated in scale, size, amount of distortion or displacement suitable for illustration, rather than in scale of actual components, as is taught herein.

Referring to fig. 1 to 9, the present invention provides a tool holder 100 capable of performing a safety lock, which is used for holding a tool holder 300 on a base 200, and the base 200 has a plurality of tool holders 100 arranged side by side in the present embodiment (as shown in fig. 1 and 2). The tool holder 100 mainly comprises two holder bodies 10 and a pin member 20, wherein:

the clamp 10 has a connecting portion 11 and a claw portion 12, the two connecting portions 11 are overlapped and are pivotally connected to the base 200 by a shaft 13, and the two claw portions 12 are opened and closed along with the two connecting portions 11. In the present embodiment, the two clamp bodies 10 have the same structure, and the connecting portion 11 is a side plate with a smaller thickness relative to the clamp body 10 itself, and the two clamp bodies 10 of the present embodiment are oppositely disposed and overlapped by the two connecting portions 11 (as shown in fig. 3), so that the positions of the two claw portions 12 are symmetrical. In addition, each of the two connecting portions 11 has a pin hole 111, the diameter of the pin holes 111 is equal, and the two pin holes 111 are aligned when the two connecting portions 11 are overlapped.

The pin 20 is disposed on the base 200, and when the pin 20 is disposed on the base 200, the pin 20 is parallel to the shaft 13, and the position of the pin 20 on the base 200 is different from the position of the shaft 13, the pin 20 is disposed through two overlapped and aligned pin holes 111, and the pin 20 can be displaced along the axial direction thereof to be located at an unlocking position P1 (as shown in fig. 7 and 8) or a locking position P2 (as shown in fig. 4 and 5) relative to the base 200. When the two clamp bodies 10 are at the unlocking position P1 of the pin member 20, the two clamp bodies 10 can pivot relatively, and when the knife handle 300 moves along with the processing spindle when being engaged with the processing spindle, external force can be applied to the two claw parts 12 to expand the two claw parts 12, so that the knife handle 300 can be removed from the knife holder 100, or the knife handle 300 can be returned to the knife holder 100; when the two clamp bodies 10 are at the locking position P2 of the pin member 20, the two clamp bodies 10 are restrained by the pin member 20 and do not swing relatively, and the knife handle 300 is clamped and fixed by the two claw portions 12. The two clamps 10 can pivot relatively, including two clamps 10 can swing, or one clamp 10 is stationary and the other clamp 10 swings relatively, which is the type of the invention that two clamps 10 can pivot relatively.

In the present embodiment, the pin member 20 has a large diameter section 21 and a small diameter section 22, the large diameter section 21 has a width approximately equal to the width of the two pin holes 111, and the small diameter section 22 has a width smaller than the width of the two pin holes 111. When the pin member 20 is at the locking position P2, the two clamp bodies 10 are restricted from pivoting relative to each other by the large diameter section 21 in the two pin holes 111; when the pin 20 is in the unlocking position P1, the small diameter section 22 is located in at least one pin hole 111 and has a gap G, so that the gap G provides a space for the two clamp bodies 10 to pivot relatively.

Preferably, the base 200 has a pin slot 201 for accommodating the pin 20, and a return elastic member 23 is disposed in the pin slot 201, the return elastic member 23 is a compression spring in the embodiment, the pin 20 is abutted to the large diameter section 21 by the return elastic member 23 in the pin slot 201, the pin 20 is normally pushed by the return elastic member 23 to be located at the locking position P2, and when the pin 20 is displaced to the unlocking position P1, the return elastic member 23 is compressed to generate a pre-force, and when the compressed force of the return elastic member 23 is removed, the pin 20 is returned to the locking position P2 by the pre-force.

In the present embodiment, a positioning seat 30 is further included and locked on the base 200 (as shown in fig. 2 and 3), and the positioning seat 30 is stacked on the two connecting portions 11, and a space for the two clamp bodies 10 to swing movably is still left between the positioning seat 30 and the base 200. The positioning socket 30 has a through hole 31, the through hole 31 is aligned with the two pin holes 111 when the positioning socket 30 is locked on the base 200, and the through hole 31 and the small diameter section 22 have the same width, when the pin member 20 is located at the locking position P2, the large diameter section 21 is located in the two pin holes 111, the small diameter section 22 is located in the through hole 31, and the small diameter section 22 extends out of the through hole 31 by an exposed section 221, and when the exposed section 221 is pressed into the through hole 31, the pin member 20 is displaced from the locking position P2 to the unlocking position P1.

In the present embodiment, the pin member 20 has a cut plane 24 (as shown in fig. 3, 4 and 5) on one side of the large diameter section 21, the cut plane 24 is formed along the axial direction of the pin member 20 and is recessed in the large diameter section 21, a stopper 40 is disposed on the base 200 beside the pin slot 201 to align with the cut plane 24, the stopper 40 is a cylinder in the present embodiment, and the base 200 has a groove 202 for receiving and positioning the stopper 40, so that the stopper 40 can limit the pin member 20 from deflecting when the pin member 20 is axially displaced relative to the base 200.

In the above embodiment, when the pin 20 is in the unlocking position P1, the small diameter section 22 has a gap G (as shown in fig. 7) in the pin hole 111 of the clip 10 relatively above, and the pivotable range of the clip 10 relatively above is larger than that of the clip 10 relatively below, but the invention is not limited thereto, that is, the small diameter section 22 may have a gap G (not shown) in the pin hole 111 of both clips 10, so that both clips 10 have the same pivotable range.

In the present embodiment, the pin member 20 has a slot 222, the slot 222 is located in the exposed section 221 in the pin member 20, a roller 25 is pivotally installed in the slot 222 and located in the exposed section 221, and the pin member 20 has a guiding angle 223 at the top end of the exposed section 221 in the present embodiment, the guiding angle 223 is biased to one side of the slot 222 and is in an arc curve, the roller 25 is exposed at the top end of the pin member 20 at one side of the guiding angle 223, so that the roller 25 is pulled to press the exposed section 221 into the through hole 31.

In this embodiment, each clip body 10 has a restoring elastic member 50 abutting against the outer side thereof, and the restoring elastic member 50 is a compression spring in this embodiment, when the two clip bodies 10 swing relatively, the clip body 10 swinging outward compresses the abutting restoring elastic member 50, and swings back to restore along with the rebounding restoring elastic member 50. The elastic restoring member 50 can be disposed between any two tool holders 100, and both ends thereof respectively abut against the two clamp bodies 10 of the two adjacent tool holders 100; as shown in fig. 2, the elastic restoring member 50 can also be a clamp 10 having one end abutting against one of the tool holders 100, and the other end abutting against a stop 203 disposed on the base 200, in this embodiment, three stops 203 are disposed on the base 200, two of the stops are disposed outside the tool holder 100 at the two ends of the base 200, and a stop 203 is disposed in the middle of the base 200, and the elastic restoring member 50 of this embodiment can restore the clamp 10 of the tool holder 100 after pivoting by means of the stop 203.

When the tool holder 100 of the above-described embodiment is actually used on the base 200, it is mounted on a drum magazine 400 (as shown in fig. 1), and assuming that the tool holder 100 is in a state with the tool holder 300, and the tool holder 300 is to be removed from the tool holder 100, at this time, the processing spindle 500 engaged with the tool holder 300 is moved, and the pressing member 501 provided on the processing spindle 500 is brought into contact with the exposed section 221 and pressed against the roller 25 (as shown in fig. 6 and 7), so that the exposed section 221 is pressed into the through hole 31 and the pin member 20 is located at the unlocking position P1, and at this time, the clamp 10 is pivoted by the gap G existing between the small diameter section 22 and the pin hole 111, and the two claw portions 12 are thereby opened, and the tool holder 300 can be removed from the tool holder 100 by moving along with the processing spindle 500. If the tool holder 300 is to be returned to the tool holder 100, the pressing member 501 is brought by the processing spindle 500 along the guide corner 223 to contact the exposed section 221 and abut against the roller 25 (as shown in fig. 9), and the exposed section 221 is also pressed into the through hole 31 to make the pin member 20 located at the unlocking position P1, so that the two claw portions 12 are opened, and the tool holder 300 can be returned to the tool holder 100 along with the movement of the processing spindle 500.

In the above embodiment, when the tool holder 100 is retracted or removed from the tool holder 300, the pin member 20 is normally pushed by the return elastic member 23 to be located at the locking position P2, and the large diameter section 21 is used to limit the two clamp bodies 10 from pivoting in the two pin holes 111 with the diameter approximately equal to the width of the large diameter section. Therefore, if the holder 100 is provided with the tool holder 300, the tool holder 300 is clamped and fixed by the two claws 12, and unless the pin member 20 is moved to the unlocking position P1, the tool holder 300 cannot be removed from the two claws 12, so that the tool holder 300 is securely positioned on the holder 100.

As apparent from the above description, the holder 100 of the present invention is characterized in that the tool holder 100 of the present invention is provided with a safety lock mechanism, i.e., when the two clamp bodies 10 are in the unlocking position P1 of the pin member 20, the tool holder 300 can only spread the two jaws 12 and thus the tool holder 300 can be removed from the holder 100, or the tool holder 300 can be returned to the holder 100, and when the pin member 20 is in the locking position P2, the two clamp bodies 10 are restricted from pivoting, i.e., the two clamp bodies 10 are restricted by the pin member 20 and the two jaws 12 cannot be spread, so that even if a force is applied to the tool holder 300, the tool holder 300 cannot be separated from the holder 100, thereby preventing the problem that the tool holder 300 is separated from the holder 100 and dropped when an external force is applied to the tool holder 300.

The above examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. All such modifications and variations are within the scope of the invention as determined by the appended claims.

Description of the symbols:

100: a tool holder. 200: a base.

201: a pin slot. 202: a trench portion.

203: and a stop block. 300: a knife handle.

400: a roller type tool magazine. 500: and (5) processing the main shaft.

501: and a pressing part. 10: a clip body.

11: a connecting portion. 111: a pin hole.

12: a claw portion. 13: a shaft member.

20: a pin member. 21: a large diameter section.

22: a small diameter section. 221: exposing the segment.

222: and (4) slotting. 223: and (6) guiding the angle.

23: the elastic member is reset. 24: and (6) cutting a plane.

25: and a roller. 30: a positioning seat.

31: and (5) perforating. 40: a stopper.

50: the elastic member resets. P1: an unlocked position.

P2: a latched position. G: a gap.

Claims

1. A tool holder for performing a safety lock, the tool holder being attached to a base for holding a tool holder, the tool holder comprising:

two clamping bodies, which are respectively provided with a connecting part and a claw part, wherein the two connecting parts are overlapped and are penetrated through by a shaft piece to be pivotally connected with the base, and the two claw parts are opened and closed along with the relative pivotal swing of the two connecting parts; and

the pin piece is arranged on the base in parallel with the shaft piece, the two connecting parts are arranged on the pin piece in a penetrating way at a position different from the position of the shaft piece, the pin piece can move along the axial direction of the pin piece and is positioned at an unlocking position or a locking position relative to the base, the two clamping bodies can swing relatively when the pin piece is positioned at the unlocking position, and the knife handle can open the two claw parts to be taken away or returned; the two clamp bodies are limited from swinging relative to each other when the pin piece is located at the locking position, and the knife handle is clamped and fixed by the two claw parts.

2. The safety lock blade holder as claimed in claim 1, wherein the two connecting portions each have a pin hole having an equal diameter and aligned to be penetrated by the pin member when the two connecting portions are overlapped, the pin member has a large diameter section having a width equal to the diameter of the pin hole and a small diameter section having a width smaller than the width of the pin hole, the pin member is disposed in the two pin holes with the large diameter section in the locking position to restrict the two clamp bodies from pivoting relative to each other; when the pin piece is in the unlocking position, the small-diameter section is arranged in at least one pin hole, and a gap is reserved, so that the two clamping bodies can pivot relatively through the gap.

3. The tool holder of claim 2, wherein the base has a pin slot for receiving the pin, the pin is abutted by a return spring in the pin slot, the pin is normally pushed by the return spring to be located at the locking position, and when the pin is displaced to the unlocking position, the return spring is compressed to generate a pre-force, so as to provide the pin to return to the locking position with the pre-force.

4. The tool holder of claim 3, further comprising a positioning seat locked to the base and stacked on the two connecting portions, the positioning seat having a through hole aligned with the pin hole, the through hole and the small diameter section being of equal width, the pin member being located in the locking position with the large diameter section located in the pin hole and the small diameter section located in the through hole and extending out of an exposed section, the pin member being displaced from the locking position to the unlocking position when the exposed section is pressed into the through hole.

5. A safety lock blade holder as in claim 4, wherein the pin member has a slot in the exposed portion and a roller pivoted to the exposed portion in the slot such that the roller is urged into the bore.

6. The safety lock blade holder as claimed in claim 5, wherein the pin member has a lead angle at a top end of the exposed portion, the lead angle being curved toward one side of the slot, and the roller is exposed at a top end of the pin member at the side having the lead angle.

7. A safety-lock blade holder as in claim 3, wherein said pin member is recessed axially along one side of said major diameter section to define a cut-out plane, and a stop member is disposed in said base adjacent said pin slot to align with said cut-out plane, whereby said stop member limits said pin member from deflecting during axial displacement relative to said base.

8. The safety lock blade holder of claim 1, wherein the base has a plurality of said blades arranged side by side.

9. The tool holder of claim 8, wherein each of the holders has a resilient return element abutting against the outside thereof, and at least one of the holders compresses the resilient return element when pivoting outward and returns to return to the original position as the resilient return element rebounds.

10. The tool holder capable of performing safety lock according to claim 9, wherein the elastic restoring member can be disposed between any two tool holders, wherein two ends of the elastic restoring member respectively abut against the holder bodies of two adjacent tool holders; the elastic restoring piece can also be provided with a clamp body with one end abutting against one of the tool holders and the other end abutting against a stop block arranged on the base.