Sprue jig for spark machine machining

Abstract

The utility model discloses a sprue jig for spark machine processing, which comprises a fixed base detachably installed on a spark machine and a jig base connected to the fixed base, a plurality of placing grooves for placing sprues are arranged on the jig base, a plurality of water spraying raised heads are further arranged on the fixed base, and the water spraying raised heads are arranged on the jig base. Accommodating holes are correspondingly formed in the bottom of the placement groove, and the water spraying raised heads correspondingly penetrate through the accommodating holes respectively and are exposed out of the placement groove. The sprue bushing is simple in structure, the water spraying raised head upwards sprays working liquid into the containing groove through the matched arrangement of the water spraying raised head and the containing hole in the machining process of the electric discharge machine, the working liquid can flow into the channel of the sprue bushing, the whole working liquid on the electric discharge machine can be kept flowing, and therefore the situation that the machining quality is affected due to large-amount accumulation of heat is avoided; and the processing quality of the sprue is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for nozzle production, in particular to a nozzle fixture for electric discharge machining. Background Art

[0002] A nozzle, also known as a sprue bushing, a pouring nozzle, or a sprue pouring nozzle, is a component of the runner that allows molten plastic material to be injected from the nozzle of an injection molding machine into the mold interior. It is a metal fitting used to connect the molding mold and the injection molding machine. This fitting occupies an important position in the design of plastic molds because it directly affects the quality and production efficiency of plastic products. Therefore, the production quality of the nozzle is particularly crucial.

[0003] In the existing nozzle production process, electric discharge machining is often required. Generally, the fixture is installed on the electric discharge machine, then immersed in the working fluid, and then the nozzle is placed on the fixture for processing. However, due to the structural characteristics of the nozzle, it is difficult for the working fluid to flow in the nozzle pipeline. Once the processing time is relatively long, a large amount of heat will accumulate in the nozzle pipeline, seriously affecting the processing quality of the nozzle, which is very troublesome. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a nozzle fixture for electric discharge machining.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A nozzle fixture for electric discharge machining includes a fixed base detachably installed on the electric discharge machine, and a fixture base connected to the fixed base. A plurality of placement grooves for placing nozzles are provided on the fixture base. A plurality of water spraying protrusions are further provided on the fixed base. Accommodating holes are correspondingly opened at the bottom of the placement grooves. Among them, the plurality of water spraying protrusions respectively pass through the accommodating holes and expose into the placement grooves.

[0007] As described above, a nozzle fixture for electric discharge machining, the fixture base is further provided with a plurality of limiting structures that can limit the rotation of the nozzle in the placement groove.

[0008] As described above, a nozzle fixture for electric discharge machining, the limiting structure includes a limiting hole opened on the fixture base and corresponding to one side of the placement groove, and a limiting screw threadedly connected to the limiting hole. The bottom end of the limiting screw can protrude into the placement groove and press against the nozzle.

[0009] As described above, a nozzle fixture for electric discharge machining, a buffer portion for contacting the nozzle is further provided at the bottom end of the limiting screw.

[0010] A nozzle fixture for die sinking EDM as described above, wherein the buffer part is made of silica gel.

[0011] A nozzle fixture for die sinking EDM as described above, and a plurality of auxiliary limiting structures are further provided on the upper end surface of the fixture base.

[0012] A nozzle fixture for die sinking EDM as described above, wherein the auxiliary limiting structure includes a plurality of auxiliary threaded holes formed in the fixture base and arranged along the periphery of the placement groove. Among them, a screw passes through a through hole on the nozzle and is connected to the auxiliary threaded hole.

[0013] A nozzle fixture for die sinking EDM as described above, and a plurality of the receiving holes are respectively arranged at the centers of the bottoms of the corresponding placement grooves, and the positions of the plurality of water spraying convex heads are correspondingly arranged with the receiving holes.

[0014] A nozzle fixture for die sinking EDM as described above, and the number of the placement grooves is four, and they are respectively arranged at the four corners of the fixture base.

[0015] A nozzle fixture for die sinking EDM as described above, and a plurality of fixing countersunk holes are further formed in the fixture base. A plurality of fixing screws are correspondingly arranged in the fixing countersunk holes, and the fixing screws pass through the fixing countersunk holes and are connected to the fixing base.

[0016] The beneficial effects of the present utility model are as follows: The structure of the present application is simple. Through the cooperative setting of the water spraying convex head and the receiving hole, during the die sinking EDM process, the water spraying convex head sprays the working fluid upward into the placement groove, so that the working fluid can flow into the channel of the nozzle, and the overall working fluid on the die sinking EDM can be kept flowing, thereby avoiding the large accumulation of heat to affect the processing quality and ensuring the processing quality of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 FIG. 1 is one of the structural schematic diagrams of a nozzle fixture for die sinking EDM according to an embodiment of the present utility model.

[0019] Figure 2 FIG. 2 is another structural schematic diagram of a nozzle fixture for die sinking EDM according to an embodiment of the present utility model.

[0020] Figure 3It is an exploded view of a nozzle fixture for a spark machine in an embodiment of the present utility model. Specific embodiments

[0021] The technical solutions of the present utility model will be described in detail below with reference to the drawings and embodiments.

[0022] Please refer to Figures 1 to 3 As shown, an embodiment of the present application provides a nozzle fixture for a spark machine, which includes a fixed base 1 detachably installed on the spark machine, and a fixture base 2 connected to and provided on the fixed base 1. A plurality of placement grooves 20 for placing nozzles are opened on the fixture base 2. A plurality of water spray protrusions 3 are also provided on the fixed base 1. Corresponding accommodation holes are also opened at the bottom of the placement grooves 20. Among them, a plurality of the water spray protrusions 3 respectively pass through the accommodation holes and protrude into the placement grooves 20.

[0023] Through the cooperative setting of the water spray protrusions 3 and the accommodation holes, during the spark machine processing, the water spray protrusions 3 spray the working fluid upward into the placement grooves 20, so that the working fluid can flow into the channels of the nozzles, and can keep the overall working fluid on the spark machine flowing, thereby avoiding a large accumulation of heat and affecting the processing quality, and ensuring the processing quality of the nozzles.

[0024] In this embodiment, a water spray device is provided on the spark machine, and the water spray device is connected to the water spray protrusions 3 so that the water spray protrusions 3 can spray water flow.

[0025] Further, a plurality of the accommodation holes are respectively provided at the centers of the bottoms of the corresponding placement grooves 20, and the positions of the plurality of water spray protrusions 3 are correspondingly set with the accommodation holes. By arranging the accommodation holes at the centers of the bottoms of the placement grooves 20, it is ensured that the working fluid can better flow into the channels of the nozzles.

[0026] Specifically, the number of the placement grooves 20 is four, and they are respectively provided at the four corners of the fixture base 2. By providing a plurality of placement grooves 20, multiple nozzles can be processed in one processing process, improving the processing efficiency.

[0027] Further, a plurality of limiting structures 5 for restricting the rotation of the nozzles in the placement grooves 20 are also provided on the fixture base 2.

[0028] Specifically, the limiting structure 5 includes a limiting hole 51 opened on the fixture base 2 and corresponding to one side of the placement groove 20, and a limiting screw 52 threadedly connected to the limiting hole 51. The bottom end of the limiting screw 52 can protrude into the placement groove 20 and press against the nozzle.

[0029] During the processing, after the nozzle is placed in the placement groove 20, the limit screw 52 is turned to press its bottom end against the nozzle to fix the nozzle, so that the nozzle remains stable during the processing and avoids the nozzle moving due to the flow of working fluid. It is practical and convenient.

[0030] Specifically, the bottom end of the limit screw 52 is also provided with a buffer portion 53 for contacting the nozzle, and the buffer portion 53 is silicone. The buffer portion 53 contacts the nozzle to avoid direct rigid contact between the limit screw 52 and the nozzle, thereby avoiding scratches and protecting the nozzle.

[0031] Furthermore, a plurality of auxiliary limiting structures 6 are provided on the upper end surface of the fixture base 2 .

[0032] Specifically, the auxiliary limiting structure 6 includes a plurality of auxiliary threaded holes 61 opened on the fixture base 2 and arranged along the circumference of the placement groove 20 , wherein the screws pass through the through holes on the nozzle and are connected to the auxiliary threaded holes 61 .

[0033] The auxiliary limiting structure 6 can further fix the nozzle, so that the nozzle remains stable during the processing, avoiding the nozzle from moving due to the flow of the working fluid, which is practical and convenient.

[0034] Furthermore, a plurality of fixing countersunk holes 71 are provided on the fixture base 2 , and fixing screws 72 are correspondingly provided in the plurality of fixing countersunk holes 71 . The fixing screws 72 pass through the fixing countersunk holes 71 and are connected to the fixing base 1 .

[0035] To sum up, in the embodiment of the present application, through the coordinated arrangement of the water spray head 3 and the receiving hole, during the spark machine processing, the water spray head 3 sprays the working fluid upward into the placement groove 20, so that the working fluid can flow into the channel of the nozzle, and can keep the overall working fluid on the EDM machine flowing, thereby avoiding a large amount of heat accumulation that affects the processing quality and ensuring the processing quality of the nozzle.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A nozzle fixture for EDM machining, characterized in that, It includes a fixed base (1) detachably installed on a spark machine, and a jig base (2) connected to the fixed base (1). A plurality of placement grooves (20) for placing nozzles are provided on the jig base (2). A plurality of water spray protrusions (3) are further provided on the fixed base (1). Accommodation holes are correspondingly opened at the bottom of the placement grooves (20). Among them, a plurality of the water spray protrusions (3) respectively pass through the accommodation holes and protrude into the placement grooves (20).

2. The nozzle fixture for die sinking EDM according to claim 1, characterized in that: A number of limiting structures (5) capable of restricting the rotation of the nozzle in the placement groove (20) are further provided on the jig base (2).

3. The nozzle fixture for die sinking EDM according to claim 2, wherein: The limiting structure (5) includes a limiting hole (51) opened on the jig base (2) and correspondingly located on one side of the placement groove (20), and a limiting screw (52) threadedly connected in the limiting hole (51). The bottom end of the limiting screw (52) can protrude into the placement groove (20) and press against the nozzle.

4. The nozzle fixture for die sinking EDM according to claim 3, wherein: A buffer portion (53) for contacting the nozzle is further provided at the bottom end of the limiting screw (52).

5. The nozzle fixture for die sinking EDM according to claim 4, characterized in that: The buffer portion (53) is made of silicone.

6. The nozzle fixture for die sinking EDM according to claim 1, wherein: A number of auxiliary limiting structures (6) are further provided on the upper end surface of the jig base (2).

7. The nozzle fixture for die sinking EDM according to claim 6, wherein: The auxiliary limiting structure (6) includes a number of auxiliary threaded holes (61) opened on the jig base (2) and arranged along the circumferential side of the placement groove (20). Among them, a screw passes through a through hole on the nozzle and is connected to the auxiliary threaded hole (61).

8. The nozzle fixture for die sinking EDM according to claim 1, wherein: A plurality of the accommodation holes are respectively provided at the centers of the bottoms of the corresponding placement grooves (20), and the positions of the plurality of water spray protrusions (3) are correspondingly set with the accommodation holes.

9. The nozzle fixture for die sinking EDM according to claim 1 or 8, characterized in that: The number of the placement grooves (20) is four, and they are respectively correspondingly provided at the four corners of the jig base (2).

10. The nozzle fixture for die sinking EDM according to claim 1, characterized in that: A number of fixed countersunk holes (71) are further opened on the jig base (2). A number of fixing screws (72) are correspondingly provided in the fixed countersunk holes (71). The fixing screws (72) pass through the fixed countersunk holes (71) and are connected to the fixed base (1).

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