High-precision quick change system for HSK lathe

Abstract

A high-precision quick-change system for an HSK lathe relates to the technical field of machine tools and comprises an end cover, the end cover comprises a flange plate, an end cover inner taper hole is formed in the middle of the flange plate, a cutter handle is inserted into the end cover inner taper hole, two sides of the flange plate are respectively provided with a positioning key, at least one positioning key is provided with an elastic opening key groove, and the elastic opening key groove is provided with an opening. The two sides of the cutter handle are provided with inserting notches matched with the positioning keys. Rapid and accurate connection between the cutter handle and a machine tool can be achieved, and stable inserting connection of the cutter handle is guaranteed through the structure of the inner taper hole of the end cover and the flange plate. The underlying positioning circumference design improves the circumferential angular positioning precision under the condition of equal key and key slot gaps. The close fit of the positioning key and the insertion notch, especially the design of the elastic opening key groove, further reduces the gap between the key and the key groove, and improves the circumferential angular positioning precision.

Description

Technical Field

[0001] The utility model relates to the technical field of lathes, in particular to a high-precision quick-change system for HSK lathes. Background Art

[0002] In the machining industry, the tool change system of lathes or turning-milling machine tools plays a vital role in improving production efficiency and workpiece machining accuracy. With the continuous development of the manufacturing industry, a variety of tool change systems have emerged in the market to meet different machining needs.

[0003] There are many tool quick-change systems on the market, among which CAPTO and HSK-T are two representative quick-change interface technologies. The CAPTO system, with its high-precision triangular cone double-sided positioning structure, ensures high-precision positioning and superior rigidity of the tool, and is therefore favored by high-end manufacturing. However, the complexity of this system design also brings high difficulty and high cost in manufacturing, which to some extent limits its application in a wider range of fields.

[0004] In contrast, the HSK-T system uses a conical surface as the contact surface, which simplifies the manufacturing process and reduces costs. Although this design is easy to promote, it has a slightly lower positioning accuracy and relies on a key structure to transmit torque, so the manufacturing accuracy of the key and keyway is extremely high. This additional precision requirement has virtually increased the difficulty and cost of manufacturing, resulting in the HSK-T system not being widely promoted and applied. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a high-precision quick-change system for HSK lathes.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A high-precision quick-change system for an HSK lathe comprises an end cover, the end cover comprises a flange, an end cover inner tapered hole is formed in the middle of the flange, a tool handle is inserted in the end cover inner tapered hole, a positioning key is respectively arranged on both sides of the flange, at least one positioning key is provided with an elastic open keyway, and plug-in notches matching with the positioning keys are arranged on both sides of the tool handle.

[0008] Furthermore, the plug-in slot includes a left plug-in slot and a right plug-in slot, and the left plug-in slot is provided with a limiting block.

[0009] Furthermore, a lower positioning circle is provided in the middle of the flange, and the lower positioning circle cooperates with the tool handle.

[0010] Furthermore, the positioning key includes a first positioning key and a second positioning key, and an elastic open key groove is formed on the first positioning key.

[0011] Furthermore, the flange is provided with a first plug hole and a second plug hole, the first plug hole cooperates with the first positioning key, and the second plug hole cooperates with the second positioning key.

[0012] Furthermore, the first positioning key includes a first key body, a first positioning block and an elastic block are provided on one side of the first key body, an elastic open keyway is formed between the first positioning block and the elastic block, and a first positioning threaded hole is provided on the first key body.

[0013] Furthermore, the elastic block cooperates with the limiting block of the left plug-in slot.

[0014] Furthermore, the second positioning key includes a second key body, a second positioning block is provided on one side of the second key body, and a second positioning threaded hole is provided on the second key body.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can realize the rapid and precise connection between the tool handle and the machine tool, and the structure of the tapered hole in the end cover and the flange ensures the stable insertion of the tool handle. The lower positioning circle design improves the angular positioning accuracy of the circle under the condition of equal key and keyway clearance. The close fit between the positioning key and the plug-in slot, especially the design of the elastic open keyway, further reduces the gap between the key and the keyway, and improves the angular positioning accuracy of the circle. In addition, the system not only simplifies the installation and disassembly process, but also reduces the manufacturing difficulty and cost, making it more suitable for large-scale promotion, thereby effectively improving the processing efficiency and processing quality of the lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure when the first positioning key, the second positioning key and the end cover are combined;

[0018] Figure 3 It is a top view of the handle;

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of the end cover;

[0020] Figure 5 is a schematic diagram of the three-dimensional structure of the first positioning key;

[0021] Figure 6 is a schematic diagram of the three-dimensional structure of the second positioning key;

[0022] Wherein: 1 end cover, 11 inner tapered hole of end cover, 12 flange, 121 lower positioning circle, 122 first plug hole, 123 second plug hole, 2 tool handle, 21 left plug slot, 211 limit block, 3 first positioning key, 31 first key body, 32 first positioning block, 33 elastic block, 34 first positioning threaded hole, 35 elastic open keyway, 4 second positioning key, 41 second key body, 42 second positioning block, 43 second positioning threaded hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0024] like Figure 1-Figure 6 As shown, a high-precision quick-change system for an HSK lathe includes an end cover 1, which can be connected to the machine tool and can stably fix the quick-change system on the machine tool, thereby enhancing the stability and reliability of the entire system. The end cover includes a flange 12, an end cover inner tapered hole 11 is formed in the middle of the flange, and a tool handle 2 is inserted into the end cover inner tapered hole. A positioning key is provided on each side of the flange, and at least one positioning key is provided with an elastic open keyway 35, which further reduces the gap between the key and the keyway and improves the angular positioning accuracy of the circumference. The tool handle is provided with plug-in notches that match the positioning keys on both sides, which facilitates the quick connection of the tool handle and the flange and simplifies the installation and disassembly process.

[0025] Specifically, the plug-in slot includes a left plug-in slot 21 and a right plug-in slot, and the left plug-in slot is provided with a limiting block 211 .

[0026] In at least one embodiment, a lower positioning circle 121 is provided in the middle of the flange, and the lower positioning circle cooperates with the tool handle to improve the angular positioning accuracy of the circle under the condition of equal clearance between the key and the keyway.

[0027] Specifically in this embodiment, the positioning key includes a first positioning key 3 and a second positioning key 4 , and an elastic open key groove 35 is formed on the first positioning key.

[0028] Furthermore, the flange is provided with a first plug hole 122 and a second plug hole 123 , the first plug hole cooperates with the first positioning key, and the second plug hole cooperates with the second positioning key.

[0029] Furthermore, the first positioning key includes a first key body 31 , a first positioning block 32 and an elastic block 33 are provided on one side of the first key body, an elastic open keyway 35 is formed between the first positioning block 32 and the elastic block 33 , and a first positioning threaded hole 34 is provided on the first key body.

[0030] Specifically, the elastic block cooperates with the limiting block 211 of the left plug-in slot.

[0031] Furthermore, the second positioning key includes a second key body 41 , a second positioning block 42 is disposed on one side of the second key body, and a second positioning threaded hole 43 is disposed on the second key body.

[0032] Working method, connect the end cover 1 with the machine tool, select a suitable tool handle 2, and ensure that both sides thereof are provided with plug-in slots that match the positioning keys on the flange. These plug-in slots include a left plug-in slot 21 and a right plug-in slot, wherein the left plug-in slot 21 is provided with a limit block 211. The first positioning key 3 and the second positioning key 4 are respectively installed on both sides of the flange 12. The first positioning key 3 is provided with an elastic open keyway 35 for matching with the limit block 211 on the tool handle. Insert the tool handle 2 into the inner tapered hole of the end cover, and ensure that the left plug-in slot 21 and the right plug-in slot 22 match the first positioning key 3 and the second positioning key 4 respectively. When the tool handle is inserted, its limit block 211 should match with the elastic open keyway 35 of the first positioning key 3 to achieve precise positioning and quick replacement.

[0033] As needed, rotate and adjust the tool handle 2 to ensure that its position and angle meet the processing requirements. Use the corresponding fasteners or locking mechanisms to fix the tool handle 2 in the tapered hole in the end cover to ensure stability and accuracy during processing. During use, regularly check the wear of the positioning key and tool handle, and replace or maintain them when necessary. Keep the quick-change system clean and dry to prevent impurities and moisture from entering and affecting accuracy and service life.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of protection claimed by the utility model.

Claims

1. A high-precision quick-change system for HSK lathe, characterized in that: It includes an end cover, which includes a flange plate. An inner tapered hole is formed in the middle of the flange plate, and a tool handle is inserted into the inner tapered hole of the end cover. A positioning key is provided on each side of the flange plate, and at least one positioning key is provided with an elastic open keyway. Insertion slots matching the positioning keys are provided on both sides of the tool handle.

2. The high-precision quick-change system for HSK lathe according to claim 1, characterized in that: The plug-in slot comprises a left plug-in slot and a right plug-in slot, and the left plug-in slot is provided with a limiting block.

3. The high-precision quick-change system for HSK lathe according to claim 1 or 2, characterized in that: A lower positioning circle is arranged in the middle of the flange, and the lower positioning circle matches with the tool handle.

4. The high-precision quick-change system for HSK lathe according to claim 2, characterized in that: The positioning key comprises a first positioning key and a second positioning key, and an elastic open key groove is formed on the first positioning key.

5. The high-precision quick-change system for HSK lathe according to claim 4, characterized in that: The flange is provided with a first plug hole and a second plug hole, the first plug hole matches with the first positioning key, and the second plug hole matches with the second positioning key.

6. The high-precision quick-change system for HSK lathe according to claim 4, characterized in that: The first positioning key comprises a first key body, a first positioning block and an elastic block are arranged on one side of the first key body, an elastic open keyway is formed between the first positioning block and the elastic block, and a first positioning threaded hole is arranged on the first key body.

7. The high-precision quick-change system for HSK lathe according to claim 6, characterized in that: The elastic block matches with the limiting block of the left plug-in slot.

8. The high-precision quick-change system for HSK lathe according to claim 4, characterized in that: The second positioning key comprises a second key body, a second positioning block is arranged on one side of the second key body, and a second positioning threaded hole is arranged on the second key body.

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