Positioning clamp for machining mold core

Abstract

The utility model discloses a positioning fixture for processing a die core, which comprises a base, a rotary table is rotatably arranged above the base, a plurality of positioning pin holes for positioning the die core are arranged at the rotary table, the base is provided with an upper circular truncated cone part, and the diameter of the upper circular truncated cone part is the same as that of the rotary table. A plurality of first threaded holes used for being connected with a machine tool are formed in the base. The positioning device can be suitable for accurately positioning the mold core, is convenient for machining the mold core, and is suitable for machining mold parts with various specifications and sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould processing technology related field, especially a kind of positioning fixture for processing mould core. BACKGROUND

[0002] Mould core is one of important parts of injection mould, which is directly related to the final forming effect of injection product.The structure of mould core usually involves various concave-convex product curved surface configurations, and the difficulty of machining is higher, accurate positioning is needed during processing.Therefore, a positioning fixture for processing mould core is proposed. SUMMARY

[0003] The utility model aims at overcoming the insufficient of prior art, provide a kind of positioning fixture for processing mould core.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a kind of positioning fixture for processing mould core, including base, the upper rotation of the base is provided with rotary table, the rotary table is equipped with a plurality of for positioning mould core positioning pin hole, the base is equipped with upper circular platform part, the diameter of the upper circular platform part is same with the diameter of the rotary table, the base is equipped with a plurality of first screw holes for being connected with machine tool.

[0005] Further elaboration, the base is equipped with lower circular platform part, the cylindrical surface of the lower circular platform part is equipped with the thread groove for being connected with machine tool thread.

[0006] Further elaboration, the first screw hole is equidistant along the circumferential direction of the lower circular platform part, and the connecting through hole is equipped between the adjacent two first screw holes.

[0007] Further elaboration, the base is equipped with one circular platform part, two circular platform parts, the one circular platform part is equidistant along the circumferential direction and is equipped with a plurality of second screw holes, and the two circular platform parts are correspondingly provided with lateral T-shaped slot hole at each second screw hole.

[0008] Further elaboration, the rotary table is equipped with a plurality of positioning hole groups, and each positioning hole group includes a plurality of radial arrangement positioning pin holes.

[0009] The utility model has the advantages of being applicable to accurate positioning of mould core, facilitating machining of mould core, and being applicable to various sizes of mould parts processing. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of specific embodiment one.

[0011] Figure 2 It is the structural schematic diagram of specific embodiment one when clamping mould core.

[0012] Figure 3 This is a structural schematic diagram of a specific embodiment two.

[0013] Reference numerals: 10. Base; 11. Upper frustum; 111. First threaded hole; 12. Lower frustum; 122. Connecting through hole; 13. Threaded groove; 14. First-order frustum; 141. Second threaded hole; 15. Second-order frustum; 151. Lateral T-slot hole; 20. Turntable; 201. Locating pin hole; 21. Locating hole group; 30. Mold core. Detailed Implementation

[0014] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0015] Specific Implementation Example 1: Combined with Appendix Figure 1 and attached Figure 2 As shown, a positioning fixture for machining mold cores includes a base 10, a turntable 20 rotatably mounted above the base 10, a plurality of positioning pin holes 201 for positioning the mold cores at the turntable 20, an upper frustum portion 11 at the base 10, the diameter of the upper frustum portion 11 being the same as the diameter of the turntable 20, and a plurality of first threaded holes 111 at the base 10 for connecting to a machine tool.

[0016] The base 10 has a lower frustum 12, and the cylindrical surface of the lower frustum 12 has a threaded groove 13 for threaded connection with a machine tool. The first threaded holes 111 are evenly spaced along the circumference of the lower frustum 12, and a connecting through hole 122 is provided between two adjacent first threaded holes 121.

[0017] As attached Figure 2 As shown, when clamping the mold core 30, a positioning pin needs to be inserted into the bottom of the mold core 30, and then the positioning pin at the bottom of the mold core 30 is inserted into the positioning pin hole 201 at the turntable 20, so that the mold core 30 is fixedly installed at the turntable 20, thus completing the clamping of the mold core 30. Then, the positioning fixture is installed on the machine tool, and the mold core 30 can be machined.

[0018] Specific Implementation Example 2: Combined with Appendix Figure 3 As shown, a positioning fixture for machining mold cores includes a base 10, a turntable 20 rotatably mounted above the base 10, a plurality of positioning pin holes 201 for positioning the mold cores at the turntable 20, an upper frustum portion 11 at the base 10, the diameter of the upper frustum portion 11 being the same as the diameter of the turntable 20, and a plurality of first threaded holes 111 at the base 10 for connecting to a machine tool.

[0019] As attached Figure 3As shown, the base 10 is provided with a first circular platform part 14 and a second circular platform part 15, the first circular platform part 14 is provided with a plurality of second threaded holes 141 at equal intervals in the circumferential direction, and the second circular platform part 15 is provided with a lateral T-shaped slot hole 151 corresponding to each second threaded hole 141. The turntable 20 is provided with a plurality of positioning hole groups 21, each positioning hole group 21 includes a plurality of positioning pin holes 201 arranged in the radial direction.

[0020] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0021] It should be understood that the terms "first", "second" and the like are used in the present application to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, "second" information can also be referred to as "first" information.

[0022] The above description is not intended to limit the technical scope of the present application, and any modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the technical scope of the present application.

Claims

1. A positioning fixture for machining a mold core, characterized by: The base (10) is provided with a plurality of first threaded holes (111) for connecting with a machine tool.

2. A positioning fixture for processing a mold core according to claim 1, wherein: The base (10) is provided with a lower circular table part (12), and a threaded groove (13) is arranged on the cylindrical surface of the lower circular table part (12) and used for threaded connection with the machine tool.

3. A positioning fixture for processing a mold core according to claim 2, wherein: The first threaded holes (111) are equidistantly arranged along the circumferential direction of the lower circular table part (12), and a connecting through hole (122) is arranged between adjacent two first threaded holes (111).

4. The positioning fixture for processing a mold core according to claim 1, wherein: The base (10) is provided with a first-order circular table part (14) and a second-order circular table part (15), a plurality of second threaded holes (141) are equidistantly arranged along the circumferential direction of the first-order circular table part (14), and a lateral T-shaped groove hole (151) is arranged at the position corresponding to each second threaded hole (141) of the second-order circular table part (15).

5. A positioning jig for processing a mold core according to claim 4, wherein: The rotating table (20) is provided with a plurality of groups of positioning hole groups (21), and each group of positioning hole groups (21) comprises a plurality of radial positioning pin holes (201).

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