Injection mold threaded electrode turning fixture

Abstract

The utility model relates to mould processing tool technical field especially, relates to a kind of injection mould thread electrode lathe processing fixture.The fixture includes lathe chuck and the fixture main body clamped on lathe chuck;The fixture main body includes first clamping section, second clamping section and third clamping section;One end of first clamping section has first boss, another end is equipped with first locking member;One end of second clamping section has second boss, another end is equipped with second locking member;The end of third clamping section away from second locking member is equipped with third locking member;First locking member and first boss form first electrode clamping area between, second boss and second locking member form second electrode clamping area between, second locking member and third locking member form third electrode clamping area between.The utility model effectively solves the technical problem that electrode raw material in the recess of existing technology located clamping fixture cannot be threaded, leading to electrode raw material waste.

Description

Technical Field

[0001] This utility model relates to the field of mold processing tools, and in particular to a machining fixture for threaded electrodes of injection molds. Background Technology

[0002] A threaded electrode is an electrode with a threaded shape, mainly used in electrical discharge machining (EDM). It removes metal material through spark discharge, thereby forming a precise thread structure on the mold or workpiece. During threaded electrode machining, a clamping fixture is required to hold the electrode material before machining the thread. However, in existing clamping fixtures, the screws of the clamping mechanism are protruding, which is not only prone to damage but also occupies a large production space.

[0003] To address the aforementioned issues, patent document CN208322355U discloses an electrode clamping fixture for mold processing. This fixture includes a base and a clamping part. The base is a rectangular parallelepiped with a groove on its upper surface. The clamping part includes positioning through holes and tightening screws. The positioning through holes are located on two sides of the groove, with at least four holes, and the holes on both sides correspond one-to-one. The tightening screws are located within the positioning through holes, with the external thread of the screw matching the internal thread of the positioning through hole. The length of the tightening screw is less than the length of the positioning through hole. This fixture, by making the length of the tightening screw less than the length of the positioning through hole, saves production space, facilitates storage, and allows the tightening screws to be fully screwed back into the positioning through holes when the electrode is not clamped, facilitating placement. After electrode installation, the screwdriver can be reversed to clamp the electrode, and the tightening screws can also be unscrewed for easy inspection and replacement.

[0004] As can be seen, the aforementioned clamping fixture can simultaneously clamp multiple electrodes for processing through multiple positioning through holes, improving production efficiency. However, when the clamping fixture holds the electrode material, the lower part of the electrode material is located in the groove. This part of the electrode material cannot be threaded and needs to be cut off after the electrode processing is completed, resulting in waste of electrode material and significantly increasing the company's production costs. Utility Model Content

[0005] This utility model provides a machining fixture for threaded electrodes in injection molds, which solves the technical problem in the prior art that electrode raw materials located in the groove of the clamping fixture cannot be threaded, resulting in waste of electrode raw materials.

[0006] To solve the above problems, the injection mold thread electrode machining fixture provided by this utility model adopts the following technical solution:

[0007] A machining fixture for threaded electrodes in injection molds includes a lathe chuck, a fixture body, a first locking element, a second locking element, and a third locking element;

[0008] The main body of the fixture is clamped in the lathe chuck;

[0009] The fixture body includes a first clamping section, a second clamping section, and a third clamping section that are coaxial and interconnected. The first clamping section has a first boss at the end facing the lathe chuck, and the first locking member is installed at the end facing away from the lathe chuck. The second clamping section has a second boss at the end facing the first locking member, and the second locking member is installed at the end facing away from the first locking member. The third clamping section has a third locking member installed at the end facing away from the second locking member.

[0010] The first locking member and the first boss form a first electrode clamping area, the second boss and the second locking member form a second electrode clamping area, and the second locking member and the third locking member form a third electrode clamping area.

[0011] The beneficial effects of the injection mold thread electrode machining fixture provided by this utility model are:

[0012] This invention addresses the problem in existing clamping fixtures that cannot perform threading on electrode materials located in grooves. This results in the waste of electrode material and increased production costs due to the need to remove the un-threaded portion after threading. Therefore, this invention provides a threaded electrode machining fixture for injection molds. The fixture body comprises a first clamping section, a second clamping section, and a third clamping section. Each of the first and second clamping sections has a boss at one end and a locking element at the other end. The third clamping section also has a locking element at its opposite end from the second clamping section. This creates an electrode clamping area on each clamping section. The locking elements securely hold the pre-cut electrode material within these areas, providing stable clamping. The bosses or locking elements also provide a positioning reference for tool setting, reducing tooling time. This allows for threading of the entire length of the clamped electrode material, maximizing material utilization and significantly reducing production costs.

[0013] Through the above-mentioned design, this utility model effectively solves the technical problem in the prior art that electrode raw materials located in the groove of the clamping fixture cannot be threaded, resulting in waste of electrode raw materials.

[0014] Furthermore, the radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area decrease sequentially, as do the radial dimensions of the first locking member, the second locking member, and the third locking member.

[0015] Furthermore, the ratio of the radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area is 110:75:50.

[0016] Furthermore, the first locking member has multiple crisscrossing grooves on its side facing the first boss to increase the friction between the first locking member and the electrode material; the second locking member has multiple crisscrossing grooves on its side facing the second boss to increase the friction between the second locking member and the electrode material; and the third locking member has multiple crisscrossing grooves on its side facing the second locking member to increase the friction between the third locking member and the electrode material.

[0017] Furthermore, the first clamping section is provided with a first threaded section for installing the first locking member; the second clamping section is provided with a second threaded section for installing the second locking member; and the third clamping section is provided with a third threaded section for installing the third locking member.

[0018] Furthermore, the first thread segment, the second thread segment, and the third thread segment have the same thread direction, and are opposite to the thread direction of the thread electrode.

[0019] Furthermore, the threads of the first threaded segment, the second threaded segment, and the third threaded segment are all trapezoidal threads.

[0020] Furthermore, the first locking member, the second locking member, and the third locking member are locking nuts.

[0021] Furthermore, the outer periphery of the first locking member, the second locking member, and the third locking member has a notch.

[0022] Furthermore, the lathe chuck is a three-jaw chuck. Attached Figure Description

[0023] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of the injection mold thread electrode machining fixture provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the clamp body provided by this utility model;

[0026] Figure 3 This is a schematic diagram illustrating the application structure of the injection mold thread electrode machining fixture provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Lathe chuck; 2. First locking element; 3. Second locking element; 4. Third locking element; 5. First boss; 6. Second boss; 7. Groove; 8. First threaded section; 9. Second threaded section; 10. Third threaded section; 11. Notch; 12. Threaded electrode. Detailed Implementation

[0029] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0030] An embodiment of the injection mold thread electrode machining fixture provided by this utility model:

[0031] like Figures 1 to 3 As shown, the injection mold thread electrode machining fixture includes a lathe chuck 1, a fixture body, a first locking member 2, a second locking member 3, and a third locking member 4. The fixture body is mounted on the lathe chuck 1; in this embodiment, the lathe chuck 1 is a three-jaw chuck.

[0032] Regarding the fixture body. For example... Figure 2 As shown, the fixture body includes a first clamping section, a second clamping section, and a third clamping section that are coaxial and interconnected. The first clamping section has a first boss 5 at its end facing the lathe chuck 1, and a first locking member 2 is mounted at its end facing away from the lathe chuck 1. The second clamping section has a second boss 6 at its end facing the first locking member 2, and a second locking member 3 is mounted at its end facing away from the first locking member 2. The third clamping section has a third locking member 4 mounted at its end facing away from the second locking member 3. The first locking member 2 and the first boss 5 form a first electrode clamping area, the second boss 6 and the second locking member 3 form a second electrode clamping area, and the second locking member 3 and the third locking member 4 form a third electrode clamping area. In other embodiments, the third clamping section has a third boss at its end facing the second locking member 3, and the third boss and the third locking member 4 form a third electrode clamping area.

[0033] Specifically, the radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area decrease sequentially, as do the radial dimensions of the first locking member 2, the second locking member 3, and the third locking member 4. In this embodiment, the ratio of the radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area is 110:75:50.

[0034] Specifically, such as Figure 2As shown, the first clamping section has a first threaded section 8 for installing the first locking member 2, the second clamping section has a second threaded section 9 for installing the second locking member 3, and the third clamping section has a third threaded section 10 for installing the third locking member 4. The threads of the first threaded section 8, the second threaded section 9, and the third threaded section 10 have the same direction of rotation, and are opposite to the direction of rotation of the threaded electrode 12. In this embodiment, the threads of the first threaded section 8, the second threaded section 9, and the third threaded section 10 are all trapezoidal threads, and the first locking member 2, the second locking member 3, and the third locking member 4 are all locking nuts.

[0035] In this embodiment, the outer periphery of the first locking member 2, the second locking member 3 and the third locking member 4 are all provided with a notch 11 so as to allow the locking member to be turned by hand.

[0036] In addition, such as Figure 1 As shown, in order to ensure the stability of clamping the electrode material, the first locking member 2 has a plurality of crisscrossing grooves 7 on the side facing the first boss 5 to increase the friction between the first locking member 2 and the electrode material; the second locking member 3 has a plurality of crisscrossing grooves 7 on the side facing the second boss 6 to increase the friction between the second locking member 3 and the electrode material; and the third locking member 4 has a plurality of crisscrossing grooves 7 on the side facing the second locking member 3 to increase the friction between the third locking member 4 and the electrode material.

[0037] The working principle of the injection mold thread electrode machining fixture provided by this utility model is as follows: First, the fixture body is installed on the lathe chuck 1 and is corrected and locked in sequence; then, the electrode material is placed in the first electrode clamping area and locked with the first locking member 2; the electrode material is placed in the second electrode clamping area and locked with the second locking member 3; the electrode material is placed in the third electrode clamping area and locked with the third locking member 4; after the third locking member 4 is locked, the electrode material can be processed, and three different specifications of thread electrodes 12 can be processed simultaneously without changing the cutting tool.

[0038] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0039] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A fixture for machining threaded electrodes in injection molds, characterized in that, It includes a lathe chuck, a fixture body, a first locking element, a second locking element, and a third locking element; The main body of the fixture is clamped in the lathe chuck; The fixture body includes a first clamping section, a second clamping section, and a third clamping section that are coaxial and interconnected. The first clamping section has a first boss at the end facing the lathe chuck, and the first locking member is installed at the end facing away from the lathe chuck. The second clamping section has a second boss at the end facing the first locking member, and the second locking member is installed at the end facing away from the first locking member. The third clamping section has a third locking member installed at the end facing away from the second locking member. The first locking member and the first boss form a first electrode clamping area, the second boss and the second locking member form a second electrode clamping area, and the second locking member and the third locking member form a third electrode clamping area.

2. The injection mold thread electrode machining fixture according to claim 1, characterized in that, The radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area decrease sequentially, as do the radial dimensions of the first locking member, the second locking member, and the third locking member.

3. The injection mold thread electrode machining fixture according to claim 2, characterized in that, The ratio of the radial dimensions of the first electrode clamping area, the second electrode clamping area, and the third electrode clamping area is 110:75:

50.

4. The injection mold thread electrode machining fixture according to any one of claims 1 to 3, characterized in that, The first locking member has multiple crisscrossing grooves on the side facing the first boss to increase the friction between the first locking member and the electrode material; the second locking member has multiple crisscrossing grooves on the side facing the second boss to increase the friction between the second locking member and the electrode material; the third locking member has multiple crisscrossing grooves on the side facing the second locking member to increase the friction between the third locking member and the electrode material.

5. The injection mold thread electrode machining fixture according to any one of claims 1 to 3, characterized in that, The first clamping section is provided with a first threaded section for installing the first locking member; the second clamping section is provided with a second threaded section for installing the second locking member; and the third clamping section is provided with a third threaded section for installing the third locking member.

6. The injection mold thread electrode machining fixture according to claim 5, characterized in that, The first thread segment, the second thread segment, and the third thread segment have the same thread direction, and are opposite to the thread direction of the thread electrode.

7. The injection mold thread electrode machining fixture according to claim 5, characterized in that, The threads of the first threaded segment, the second threaded segment, and the third threaded segment are all trapezoidal threads.

8. The injection mold thread electrode machining fixture according to claim 5, characterized in that, The first locking member, the second locking member, and the third locking member are locking nuts.

9. The injection mold thread electrode machining fixture according to claim 8, characterized in that, The outer periphery of the first locking member, the second locking member, and the third locking member has a notch.

10. The injection mold thread electrode machining fixture according to any one of claims 1 to 3, characterized in that, The lathe chuck is a three-jaw chuck.

Images