Core feeding machine tool rest convenient for tool changing

By using tapered or polygonal pyramidal tool mounting holes and locking pin structures on the cutting head machine tool holder, the problem of long tool change time in the prior art is solved, and the effect of rapid tool change is achieved.

CN223643308UActive Publication Date: 2025-12-09ZHONGKE PRECISION COMPONENTS (GUANGDONG) CO LTD
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Patent Information

Application Number
CN202423276023.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-09
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The existing Swiss-type machine tool holder requires the removal of bolts when changing tools, which results in long replacement time and affects production efficiency.

Method used

The tool mounting holes are tapered or multi-faceted and are adapted to the tool holder. Combined with the locking pin and guide bar structure, the tool can be quickly installed and removed.

Benefits of technology

It improved the efficiency of tool changing, simplified the operation process, and increased production efficiency.

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Abstract

The utility model discloses a core moving machine tool rest convenient for tool changing, which comprises a tool rest body, a plurality of tool aprons are fixedly arranged on the tool rest body, tool mounting holes are arranged on the tool aprons, the tool mounting holes are conical holes, tool bodies are mounted in the tool mounting holes, and lock pins are arranged at the upper parts of the tool mounting holes and are used for locking the tool bodies. According to the core moving machine tool rest convenient to replace the tool, the tool handle of the tool is connected with the tool apron through the conical mounting hole, the tool body is locked by the lock pin on the tool apron, the tool can be mounted and dismounted only by inserting or pulling out the lock pin, the tool can be replaced conveniently and rapidly, and the tool replacement efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of Swiss-type core forming machine technology, and more specifically, to a Swiss-type core forming machine tool holder that facilitates tool changing. Background Technology

[0002] Swiss-type machining centers can perform a variety of composite machining operations such as turning, milling, drilling, boring, tapping, and engraving. This composite machining capability enables Swiss-type machining centers to process parts of varying complexity, greatly shortening the machining chain and improving machining flexibility. Therefore, the tool holder of a Swiss-type machining center needs to be able to install a variety of cutting tools.

[0003] Patent document CN220612429U discloses a tool holder structure for an ultra-precision Swiss-type CNC milling cutter, belonging to the field of Swiss-type CNC machine tool technology. Specifically, it includes a main tool post and a milling cutter holder. The milling cutter holder includes a mounting base and a tilting base. The tilting base is rotatably connected to the mounting base via a rotating shaft. The tilting base has a mounting groove, in which the milling cutter body is placed. The tilting base also has a locking assembly for fixing the milling cutter body. This invention allows adjustment of the tilting base angle through the mounting base, tilting base, and drive assembly, thereby adjusting the milling cutter body's drilling angle on the valve sleeve. The milling cutter body can be disassembled and assembled using a slot, sealing cover, fixing block, screw, insert plate, elastic element, and slot, increasing the stability of the milling cutter body during drilling. The operation is relatively simple, improving the drilling efficiency of the valve sleeve.

[0004] The existing Swiss-type cutting machine tool holder uses bolts to fix the cutting tools. When the cutting tools need to be replaced, the bolts need to be removed, which takes a long time and affects production efficiency.

[0005] Therefore, it is necessary to propose a Swiss-type machine tool holder that facilitates tool changing in order to solve the problems existing in the current technology, such as poor heat dissipation and the tendency for long-term use to reduce the service life of the magnetic levitation bearing. Utility Model Content

[0006] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0007] To solve the above problems, this utility model provides a tool holder for a Swiss-type machine that facilitates tool changing. It includes a tool holder body, a tool support fixedly mounted on the tool holder body, a tool mounting hole with a tapered hole on the tool support, a tool body mounted in the tool mounting hole, and a locking pin at the top of the tool mounting hole for locking the tool body.

[0008] Preferably, the tool mounting hole is a conical hole, and the shape of the tool holder of the tool body is adapted to the shape of the tool mounting hole.

[0009] Preferably, a positioning block extending axially along the tool mounting hole is fixedly provided on the upper part of the inner wall of the tool mounting hole, and a positioning groove is formed on the outer circumferential surface of the tool holder of the tool body at a position opposite to the positioning block, and the positioning block and the positioning groove are connected in a mating manner.

[0010] Preferably, the tool mounting hole is a multi-faceted pyramidal hole, and the shape of the tool holder of the tool body is adapted to the shape of the tool mounting hole.

[0011] Preferably, a locking pin hole is provided on the upper part of the tool holder, a locking pin is slidably disposed in the locking pin hole, a wedge-shaped groove is provided on the side wall of the tool holder, and the locking pin includes a wedge-shaped part that is engaged with the wedge-shaped groove.

[0012] Preferably, a guide bar is fixedly installed on the side wall of the tool holder away from the locking pin hole, and a guide groove is opened on the front of the tool holder body opposite to the guide bar, and the guide bar is slidably installed in the guide groove.

[0013] Preferably, the tool holder has four mounting holes arranged in an array at intervals with the guide strip, and two parallel elongated holes are opened at the corresponding positions of the mounting holes on the tool holder body.

[0014] Preferably, the tool holder is mounted on the tool holder body by bolts passing through the mounting holes and elongated holes.

[0015] Preferably, the tool holder body has at least two tool supports.

[0016] Preferably, the taper of the tool mounting hole is 1:10.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The Swiss-type machine tool holder described in this utility model facilitates tool replacement. The tool shank is connected to the tool holder through a tapered mounting hole, and a locking pin on the tool holder locks the tool body. Installation and removal only require inserting or pulling the locking pin, making tool replacement convenient and quick, and improving tool replacement efficiency.

[0019] The tool holder for the Swiss-type machine described in this utility model, which facilitates tool changing, has other advantages, objectives, and features that will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 A schematic diagram of the existing core-sliding machine structure;

[0022] Figure 2 This is a schematic diagram of the structure of the sliding head machine tool holder that facilitates tool changing, as disclosed in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the tool holder with the conical tool mounting hole disclosed in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the tool holder body disclosed in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the tool body of the conical tool holder disclosed in this utility model;

[0026] Figure 6 This is a schematic diagram of the locking pin disclosed in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the tool holder and the tool body of the multi-faceted pyramidal tool mounting hole disclosed in this utility model.

[0028] Figure 8 This is a schematic diagram of the structure of the tool holder with the multi-faceted pyramidal tool mounting hole disclosed in this utility model.

[0029] Figure 9 This is a schematic diagram of the structure of the tool body of the multi-faceted pyramidal tool holder disclosed in this utility model. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0031] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0032] like Figures 2-9 As shown, a tool holder for a sliding head machine that facilitates tool changing includes a tool holder body 1, a tool holder 2 fixedly mounted on the tool holder body 1, a tool mounting hole 3 formed on the tool holder 2, the tool mounting hole 3 being a tapered hole, a tool body 4 mounted in the tool mounting hole 3, and a locking pin 5 provided at the upper part of the tool mounting hole 3 for locking the tool body 4.

[0033] Furthermore, the tool mounting hole 3 is a conical hole, and the shape of the tool holder 6 of the tool body 4 is adapted to the shape of the tool mounting hole 3.

[0034] Furthermore, a positioning block 7 extending axially along the tool mounting hole 3 is fixedly installed on the upper part of the inner wall of the tool mounting hole 3, and a positioning groove 8 is opened on the outer circumferential surface of the tool holder 6 of the tool body 4 at a position opposite to the positioning block 7, and the positioning block 7 and the positioning groove 8 are connected in cooperation.

[0035] Furthermore, the tool mounting hole 3 is a multi-faceted pyramidal hole, and the shape of the tool holder 6 of the tool body 4 is adapted to the shape of the tool mounting hole 3.

[0036] Furthermore, a locking pin hole 9 is provided on the upper part of the tool holder 2, and a locking pin 5 is slidably disposed in the locking pin hole 9. A wedge groove 10 is provided on the side wall of the tool holder 6. The locking pin 5 includes a wedge-shaped part 11, and the wedge-shaped part 11 is engaged with the wedge groove 10.

[0037] Furthermore, a guide bar 12 is fixedly installed on the side wall of the tool holder 2 away from the locking pin hole 9, and a guide groove 13 is opened on the front of the tool holder body 1 at the position opposite to the guide bar 12, and the guide bar 12 is slidably installed in the guide groove 13.

[0038] Furthermore, mounting holes 14 are arranged in an array at intervals with the guide strip 12 on the tool holder 2. Four mounting holes 14 are provided, and two parallel elongated holes 15 are provided on the tool holder body 1 at the corresponding positions of the mounting holes 14.

[0039] Furthermore, bolts are passed through mounting holes 14 and elongated holes 15 to mount the tool holder 2 onto the tool holder body 1.

[0040] Furthermore, at least two tool holders 2 are provided on the tool holder body 1.

[0041] Furthermore, the taper of the tool mounting hole 3 is 1:10.

[0042] The working principle of the above technical solution:

[0043] like Figure 1 As shown, the existing cutting tools of the Swiss-type machine are fixed to the tool holder by multiple bolts 100. When the tool needs to be replaced due to wear or damage, disassembling the tool is cumbersome and wastes a lot of time in disassembling and installing the tool.

[0044] The tool holder for a Swiss-type machine that facilitates tool changing disclosed in this utility model includes a tool holder body 1. At least two tool holders 2 are fixedly mounted on the tool holder body 1. Tool holders 2 have tool mounting holes 3, which are tapered holes. Tool bodies 4 are installed in the tool mounting holes 3. A locking pin 5 is provided on the upper part of the tool mounting holes 3 to lock the tool bodies 4. The tool mounting holes 3 can be conical or pyramidal. Pyramidal holes do not require radial limiting. Tool holders 6 are installed in the tapered tool mounting holes 3. The taper of the tool mounting holes 3 is 1:10, which has a self-locking function to maintain the stability of the tool after installation. The locking pin 5 can prevent the tool from falling off.

[0045] The tool mounting hole 3 is a conical hole. The shape of the tool holder 6 of the tool body 4 is adapted to the shape of the tool mounting hole 3. A positioning block 7 extending axially along the tool mounting hole 3 is fixedly installed on the upper part of the inner wall of the tool mounting hole 3. A positioning groove 8 is opened on the outer circumferential surface of the tool holder 6 of the tool body 4 at the position opposite to the positioning block 7. The positioning block 7 and the positioning groove 8 are connected in a fit. The conical shape has a certain self-locking function. However, in order to ensure the machining accuracy and tool stability, a positioning block 7 is fixedly installed on the upper part of the inner wall of the tool mounting hole 3. A positioning groove 8 is opened on the outer circumferential surface of the tool holder 6 at the position opposite to the positioning block 7. When installing the tool, the positioning block on the tool holder 6 is inserted into the positioning groove 8 to prevent the tool holder 6 from rotating relative to the tool holder 2 during machining, which would affect the machining accuracy.

[0046] After the tool holder is installed into the tool mounting hole, there is a certain distance between the bottom surface of the positioning groove 8 and the top surface of the positioning block, and the two do not contact each other, so as to prevent the bottom surface of the positioning groove 8 from pressing against the top surface of the positioning block 7, and so that the tool holder and the tool mounting hole 3 can be tightly connected.

[0047] The tool mounting hole 3 is a multi-faceted pyramidal hole, and the shape of the tool holder 6 of the tool body 4 is adapted to the shape of the tool mounting hole 3.

[0048] Compared to conical holes, the shape of a pyramidal hole eliminates the need for anti-rotation positioning grooves and blocks. The taper of a pyramid, like that of a cone, provides a certain locking function.

[0049] A locking pin hole 9 is provided on the upper part of the tool holder 2, and a locking pin 5 is slidably disposed in the locking pin hole 9. A wedge-shaped groove 10 is provided on the side wall of the tool holder 6. The locking pin 5 includes a wedge-shaped part 11, which is connected to the wedge-shaped groove 10. The locking pin 5 can play the role of axially fixing the tool holder. The fixing and removal of the locking pin 5 in the locking pin hole is the prior art. For example, a spring can be fixedly provided on the bottom surface of the locking pin hole 9, and the free end of the spring contacts the end face of the locking pin 5 that extends into the locking pin hole 9. When the locking pin 5 is removed, the spring pushes it out. The function of the locking pin 5 is to lock it by creating a groove in the side wall near the opening end of the locking pin hole 9. A locking tongue is installed in the groove, and a slot is created on the locking pin opposite the groove. After the locking pin 5 is inserted, the locking tongue is locked in the slot, preventing the locking pin 5 from disengaging from the locking pin hole 9. The movement of the locking tongue can be controlled by a pull rod fixedly connected to the locking tongue. The pull rod can extend out of the side wall of the tool holder 2 for manual operation, or it can remain inside the groove and a control mechanism can be installed to control the extension and retraction of the locking tongue. The control of the locking pin 5 is existing technology and will not be described in detail here.

[0050] A guide bar 12 is fixedly installed on the side wall of the tool holder 2 away from the locking pin hole 9. A guide groove 13 is opened on the front of the tool holder body 1 opposite to the guide bar 12. The guide bar 12 is slidably installed in the guide groove 13. There are four mounting holes 14 arranged in an array on the tool holder 2 at intervals with the guide bar 12. Two parallel elongated holes 15 are opened on the tool holder body 1 at the corresponding positions of the mounting holes 14, so that the tool holder 2 can move horizontally on the tool holder body 1. The mounting holes and elongated holes cooperate to adjust the distance between two adjacent tool holders. After adjusting the distance between adjacent tool holders to a suitable level, the tool holder is fixed to the tool holder body 1 by bolts passing through the mounting holes and elongated holes to adapt to different tools and machining purposes.

[0051] The beneficial effects of the above technical solution are as follows:

[0052] The Swiss-type machine tool holder described in this utility model facilitates tool replacement. The tool shank is connected to the tool holder through a tapered mounting hole, and a locking pin on the tool holder locks the tool body. Installation and removal only require inserting or pulling the locking pin, making tool replacement convenient and quick, and improving tool replacement efficiency.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A tool holder for a Swiss-type machine that facilitates tool changing, characterized in that, It includes a tool holder body (1), a tool holder (2) fixedly mounted on the tool holder body (1), a tool mounting hole (3) opened on the tool holder (2), the tool mounting hole (3) is a tapered hole, the tool body (4) is installed in the tool mounting hole (3), and a locking pin (5) is provided on the upper part of the tool mounting hole (3) to lock the tool body (4).

2. The sliding head machine tool holder for easy tool changing according to claim 1, characterized in that, The tool mounting hole (3) is a conical hole, and the shape of the tool holder (6) of the tool body (4) is adapted to the shape of the tool mounting hole (3).

3. The sliding head machine tool holder for easy tool changing according to claim 2, characterized in that, A positioning block (7) extending axially along the tool mounting hole (3) is fixedly installed on the upper part of the inner wall of the tool mounting hole (3). A positioning groove (8) is opened on the outer circumferential surface of the tool holder (6) of the tool body (4) opposite to the positioning block (7). The positioning block (7) and the positioning groove (8) are connected in a cooperative manner.

4. The sliding head machine tool holder for easy tool changing according to claim 1, characterized in that, The tool mounting hole (3) is a multi-faceted pyramidal hole, and the shape of the tool holder (6) of the tool body (4) is adapted to the shape of the tool mounting hole (3).

5. The Swiss-type machine tool holder for easy tool changing according to any one of claims 1-4, characterized in that, A locking pin hole (9) is provided on the upper part of the tool holder (2), and a locking pin (5) is slidably provided in the locking pin hole (9). A wedge groove (10) is provided on the side wall of the tool handle (6). The locking pin (5) includes a wedge part (11), and the wedge part (11) is connected to the wedge groove (10).

6. The Swiss-type machine tool holder for easy tool changing according to claim 5, characterized in that, A guide bar (12) is fixedly installed on the side wall of the tool holder (2) away from the locking pin hole (9). A guide groove (13) is opened on the front of the tool holder body (1) opposite to the guide bar (12). The guide bar (12) is slidably installed in the guide groove (13).

7. The Swiss-type machine tool holder for easy tool changing according to claim 6, characterized in that, The tool holder (2) has four mounting holes (14) arranged in an array at intervals with the guide strip (12). The tool holder body (1) has two parallel elongated holes (15) at the corresponding positions of the mounting holes (14).

8. The Swiss-type machine tool holder for easy tool changing according to claim 7, characterized in that, Bolts are passed through the mounting hole (14) and the elongated hole (15) to mount the tool holder (2) onto the tool holder body (1).

9. The sliding head machine tool holder for easy tool changing according to claim 1, characterized in that, At least two tool holders (2) are provided on the tool holder body (1).

10. The sliding head machine tool holder for easy tool changing according to claim 1, characterized in that, The taper of the tool mounting hole (3) is 1:10.

Citation Information

Patent Citations

  • Tool apron structure of milling cutter of ultra-precise center-moving type numerical control machine tool

    CN220612429U