Rapid replacement device for high-precision milling tool for mold machining

Abstract

The utility model discloses a quick replacement device for a high-precision milling cutter for die processing, which belongs to the technical field of milling cutter replacement and is characterized in that the outer end of a butt joint seat is provided with a butt joint hole matched with a cutter replacement seat, the side wall of the cutter replacement seat is provided with an insertion hole, the butt joint seat is provided with a pin hole matched with the insertion hole, and the pin hole is matched with the insertion hole. A fixing bolt is inserted into the pin hole, so that the cutter replacement seat and the butt joint seat are fixed; the butt joint base and the connecting base are provided with threaded parts, the threaded parts are sleeved with connecting ferrules, and the side walls of the connecting ferrules are connected with arc-shaped abutting blocks through fasteners. And the connecting ferrule can cover and fasten the bolt after rotating, so that the fixing process is simplified, and the stability of device connection is ensured. The arc-shaped abutting blocks are fixed through the fasteners, the abutting effect is enhanced through the design of the arc-shaped abutting blocks and the rubber gaskets, sliding is prevented, and connection safety is guaranteed. And the bolt fixing mechanism allows quick replacement of a fixed bolt, so that the cutter is convenient to replace, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of milling tool replacement technology, and in particular to a high-precision milling tool quick replacement device for mold processing. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. They primarily achieve the shaping of objects by altering the physical state of the material being molded. They possess specific contours or internal cavity shapes, causing the blank to separate along the contour lines or obtain a corresponding three-dimensional shape. Milling cutters play a crucial role in mold manufacturing, helping to achieve precise machining and efficient production.

[0003] In mold making, the rapid change of high-precision milling tools typically relies on a tool holder, secured by fasteners such as bolts. When bolts strip due to prolonged use or improper operation, their tightening force decreases significantly, or even fails completely. This leads to instability in the connection between the tool holder and the machine tool, consequently affecting machining accuracy and safety.

[0004] Stripped bolts often require additional force or tools to overcome their damaged threads during disassembly. This not only increases the difficulty of disassembly but may also cause further damage to the tool holder or machine tool. In extreme cases, destructive disassembly methods, such as cutting the bolt, may be necessary, which undoubtedly increases repair costs and time.

[0005] Stripped fasteners can also prevent complete removal, leaving some fastener residue on the machine tool or tool holder that may hinder subsequent installation. This not only affects replacement efficiency but can also damage new fasteners. Utility Model Content

[0006] The main objective of this invention is to provide a high-precision milling tool quick-change device for mold processing, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A high-precision milling tool quick-change device for mold processing includes a tool changing seat, a connecting seat, a docking seat, and a replaceable tool. The connecting seat is located at the front end of the tool changing seat, and the replaceable tool is mounted on the tool changing seat through the docking seat.

[0009] The outer end of the docking seat is provided with a docking hole, which is adapted to the tool changing seat. The side wall of the tool changing seat is provided with an insertion hole, and the docking seat is provided with a pin hole adapted to the insertion hole. A fixing pin is inserted into the pin hole to fix the tool changing seat and the docking seat.

[0010] The docking seat and the connecting seat are provided with threaded parts, and a connecting sleeve is fitted on the threaded parts. The side wall of the connecting sleeve is connected to an arc-shaped abutting block by fasteners. Rotating the connecting sleeve will cover and abut against the fixing pin, thereby fixing the fixing pin and facilitating quick disassembly and replacement of the replaceable tool.

[0011] As an optional solution of this application, the threaded part is integrated with the mating seat, the threaded part is fixedly connected to the connecting seat, the threaded part is thread-fitted with the connecting sleeve, and the side wall of the connecting sleeve is provided with anti-slip protrusions.

[0012] As an optional solution of this application, the insertion hole is a through hole, and the fixing pin passes through the insertion hole and is inserted into another blind hole of the docking seat to achieve a stable connection between the replaceable tool and the docking seat. The docking point between the replaceable tool and the docking seat is provided with an anti-slip ring.

[0013] As an optional solution of this application, the fastener is a bolt and an anti-slip washer. The anti-slip washer is sleeved on the bolt, the bolt is inserted into the opening on the end face of the arc-shaped clamping block, and is fixed to the connecting sleeve by the bolt. An anti-slip strip is provided at the connection between the arc-shaped clamping block and the connecting sleeve.

[0014] As an optional solution of this application, the cross-section of the arc-shaped clamping block is designed in the shape of a "C", and the inner wall of the arc-shaped clamping block is provided with a clamping rubber pad, which is connected to the inner wall of the arc-shaped clamping block by an adhesive.

[0015] As an optional embodiment of this application, the fixing pin is divided into a large-diameter pin, a small-diameter pin, and a clamping head. The clamping head is located at the top of the large-diameter pin, the small-diameter pin is located at the bottom of the large-diameter pin, the small-diameter pin passes through a replaceable tool, and the large-diameter pin is inserted into the pin hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The connecting collar can cover and abut the fixing pin by rotating. This design not only simplifies the fixing process of the fixing pin, but also ensures the firmness of the fixing pin, thereby improving the stability of the entire device connection.

[0018] The arc-shaped clamping block is fixed to the connecting collar by fasteners. Its "C"-shaped cross-section design and the clamping rubber gasket on the inner wall further enhance the clamping effect, prevent slippage during operation, and ensure the safety of the connection.

[0019] The design of the pin fixing mechanism allows the fixing pin to be easily inserted and removed, facilitating quick replacement of replaceable tools and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view of the overall structure of this utility model;

[0022] Figure 3 This is an exploded view of the docking seat and replaceable cutting tool of this utility model.

[0023] Figure 4 This is a schematic diagram of the mating seat, fixing pin, connecting collar, and threaded portion of this utility model.

[0024] In the diagram: 1. Tool changing seat; 2. Connecting seat; 3. Dating seat; 4. Replaceable tool; 5. Insertion hole; 6. Dating hole; 7. Pin hole; 8. Fixing pin; 9. Threaded part; 10. Connecting collar; 11. Arc-shaped clamping block; 12. Fastener. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 - Figure 4 As shown, a high-precision milling tool quick-change device for mold processing is disclosed. The device mainly consists of a tool changing seat 1, a connecting seat 2, a docking seat 3, and a replaceable tool 4. The connecting seat 2 is installed at the front end of the tool changing seat 1, and the replaceable tool 4 is connected to the tool changing seat 1 through the docking seat 3, thereby realizing quick replacement.

[0027] The outer end of the docking seat 3 is designed with a docking hole 6 that is adapted to the structure of the tool changing seat 1. The side wall of the tool changing seat 1 is provided with an insertion hole 5, and the docking seat 3 is correspondingly provided with a pin hole 7 that matches the insertion hole 5. A fixing pin 8 is inserted into the pin hole 7, and in this way, the tool changing seat 1 and the docking seat 3 can achieve a stable connection.

[0028] Both the docking seat 3 and the connecting seat 2 are provided with threaded portions 9, and a connecting collar 10 is fitted onto the threaded portions 9. The side wall of the connecting collar 10 is connected to the arc-shaped abutment block 11 by fasteners 12. By rotating the connecting collar 10, it can cover and abut against the fixing pin 8, thereby achieving a firm fixation of the fixing pin 8 and facilitating quick disassembly and replacement of the replaceable tool 4.

[0029] The threaded part 9 and the mating seat 3 are integrated, while the threaded part 9 and the connecting seat 2 are connected by a fixed connection. The threaded part 9 and the connecting sleeve 10 are fitted by a thread, and the side wall of the connecting sleeve 10 is also provided with anti-slip protrusions to enhance the grip during operation.

[0030] The insertion hole 5 is designed as a through hole, allowing the fixing pin 8 to pass through the insertion hole 5 and be inserted into another blind hole in the docking seat 3, thereby achieving a stable connection between the replaceable tool 4 and the docking seat 3. To further enhance the stability of the connection, an anti-slip ring is also provided at the mating point between the replaceable tool 4 and the docking seat 3.

[0031] Fastener 12 mainly consists of a bolt and an anti-slip washer, with the anti-slip washer fitted onto the bolt. The bolt is inserted into the opening on the end face of the arc-shaped clamping block 11, and the arc-shaped clamping block 11 is fixed to the connecting sleeve 10 by the bolt. To prevent slippage during operation, an anti-slip strip is also provided at the connection between the arc-shaped clamping block 11 and the connecting sleeve 10.

[0032] The arc-shaped clamping block 11 has a "C"-shaped cross-section, and its inner wall is bonded with a clamping rubber pad. The clamping rubber pad is firmly attached to the inner wall of the arc-shaped clamping block 11 by adhesive to provide better clamping effect and anti-slip function.

[0033] The fixed pin 8 has a structure consisting of three parts: a large-diameter pin, a small-diameter pin, and a clamping head. The clamping head is located at the top of the large-diameter pin, while the small-diameter pin is located at the bottom of the large-diameter pin. The small-diameter pin passes through the replaceable tool 4, and the large-diameter pin is inserted into the pin hole 7, thereby ensuring a tight fit between the tool changer 1 and the mating seat 3.

[0034] First, rotate the connecting collar 10 so that it no longer obstructs the retaining pin 8. Next, pull the retaining pin 8 out of the pin hole 7, disengaging it from the connection between the tool changer 1 and the mating seat 3. Then, remove the replaceable tool 4 from the mating seat 3. Insert the new replaceable tool 4 into the mating hole 6 of the mating seat 3. Pass the small-diameter pin of the retaining pin 8 through the new replaceable tool 4, and insert the large-diameter pin into the pin hole 7. Rotate the connecting collar 10 again to cover and press against the retaining pin 8, ensuring it is securely fixed. Use fasteners 12 (bolts and anti-slip washers) to secure the arc-shaped clamping block 11 to the connecting collar 10. Finally, ensure all connecting parts are securely fixed, and a stable connection is established between the replaceable tool 4 and the mating seat 3. The replacement process for the high-precision milling tool quick-change device is now complete.

[0035] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-change device for high-precision milling cutters used in mold processing, comprising a tool changing seat (1), a connecting seat (2), a docking seat (3), and a replaceable tool (4), wherein the connecting seat (2) is located at the front end of the tool changing seat (1), and the replaceable tool (4) is mounted on the tool changing seat (1) via the docking seat (3), characterized in that: The docking seat (3) has a docking hole (6) at its outer end, which is adapted to the tool changing seat (1). The tool changing seat (1) has an insertion hole (5) on its side wall. The docking seat (3) has a pin hole (7) adapted to the insertion hole (5). A fixing pin (8) is inserted into the pin hole (7) to fix the tool changing seat (1) and the docking seat (3). The docking seat (3) and the connecting seat (2) are provided with threaded parts (9), and a connecting sleeve (10) is fitted on the threaded parts (9). The side wall of the connecting sleeve (10) is connected to an arc-shaped abutting block (11) by fasteners (12). Rotating the connecting sleeve (10) will cover and abut against the fixing pin (8), thereby fixing the fixing pin (8) and facilitating the quick disassembly of the replaceable tool (4) for replacement.

2. The high-precision milling tool quick change device for mold processing according to claim 1, characterized in that: The threaded part (9) is integrated with the mating seat (3), the threaded part (9) is fixedly connected with the connecting seat (2), the threaded part (9) is threadedly adapted to the connecting sleeve (10), and the side wall of the connecting sleeve (10) is provided with anti-slip protrusions.

3. The high-precision milling tool quick change device for mold processing according to claim 2, characterized in that: The insertion hole (5) is a through hole. The fixing pin (8) passes through the insertion hole (5) and is inserted into another blind hole of the docking seat (3) to achieve a stable connection between the replaceable tool (4) and the docking seat (3). The docking point of the replaceable tool (4) and the docking seat (3) is provided with an anti-slip ring.

4. The high-precision milling tool quick change device for mold processing according to claim 3, characterized in that: The fastener (12) is a bolt and an anti-slip washer. The anti-slip washer is fitted on the bolt. The bolt is inserted into the end hole of the arc-shaped clamping block (11) and fixed to the connecting sleeve (10) by the bolt. An anti-slip strip is provided at the connection between the arc-shaped clamping block (11) and the connecting sleeve (10).

5. The high-precision milling tool quick change device for mold processing according to claim 4, characterized in that: The arc-shaped clamping block (11) has a "C" shaped cross-section. The inner wall of the arc-shaped clamping block (11) is provided with a clamping rubber pad, which is connected to the inner wall of the arc-shaped clamping block (11) by an adhesive.

6. The high-precision milling tool quick change device for mold processing according to claim 5, characterized in that: The fixed pin (8) is divided into a large-diameter pin, a small-diameter pin and a clamping head. The clamping head is located at the top of the large-diameter pin, the small-diameter pin is located at the bottom of the large-diameter pin, the small-diameter pin passes through the replaceable cutter (4), and the large-diameter pin is inserted into the pin hole (7).

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