Insert processing device of cedar fastener injection molding mold

Abstract

The utility model discloses an insert processing device of a cedar fastener injection molding mold, which comprises a tool clamp and an insert, a pair of mounting grooves is symmetrically arranged at the top of the tool clamp, an included angle alpha is arranged between the mounting grooves and an X-axis plane, an included angle beta is arranged between the mounting grooves and a Y-axis plane, and the insert is arranged in the mounting grooves. According to the utility model, through the design of the tool clamp, the machining position of the insert is vertically arranged upwards, and the copper plug is moved up and down through the driving mechanism of the spark machine, so that the forming groove of the insert can be machined and formed; the mold insert can be sparking by adopting a common mirror spark machine, the machining requirement of the copper mold is reduced, the copper mold can be manufactured by only needing a common engraving and milling machine, the cost is low, the machining period is short, and the interchangeability is high.

Description

Technical Field

[0001] This utility model relates to the field of insert processing technology, specifically to an insert processing device for injection molding molds of cedar fasteners. Background Technology

[0002] Cedar-type fasteners are a type of connector characterized by a special split structure or biomimetic design. Their name comes from the fact that the shape or function of some products resembles the branching shape of cedar branches. They are characterized by high stability and adaptability to multiple scenarios. Cedar-type fasteners are mostly made of materials such as polyamide 6, polyamide 66, and polyoxymethylene, which take into account high strength, wear resistance and temperature resistance, and are suitable for high-load scenarios such as automotive wiring harness fixing.

[0003] Cedar fasteners are manufactured using injection molding, and the inserts in the injection mold are key components in the molding of cedar fasteners. Currently, there are two main manufacturing processes for inserts: one involves dividing the insert into 10 individual small inserts and assembling them (e.g., ...). Figure 1 As shown), the advantage is that it is easy to vent air during injection molding, but the disadvantages are that it is difficult to process, costly, easily damaged during injection molding, and the product is prone to flash; another type is to make the insert into one piece, just one piece, and the insert is formed by EDM (such as...). Figure 2 As shown in the figure, the copper electrode is machined using a 5-axis CNC machine, and the EDM is performed using a mirror EDM machine that must be equipped with a C-axis. The advantage is that the roundness is good, but the disadvantage is that the processing cost is high. 5-axis CNC mirror EDM machines are generally not purchased by mold factories, so the adoption rate is low. If damaged, the whole part must be replaced. Therefore, it is urgent to design an insert processing device for injection molding molds of cedar fasteners to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an insert processing device for injection molding molds of cedar fasteners. Through the design of the tooling fixture, the processing position of the insert is set vertically upward. The copper electrode is moved up and down by the drive mechanism of the EDM machine to process the forming groove of the insert. Ordinary mirror EDM machine can be used to perform EDM on the insert, reducing the processing requirements of the copper electrode. It can be made with just an ordinary engraving machine, resulting in low cost, short processing cycle, and strong interchangeability.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for processing inserts in an injection molding die for cedar fasteners includes a tooling fixture and inserts. The tooling fixture has a pair of symmetrical mounting slots on its top. An angle α is formed between the mounting slots and the X-axis plane, and an angle β is formed between the mounting slots and the Y-axis plane. The inserts are installed in the mounting slots. A retaining component for locking the position of the inserts is installed on the tooling fixture.

[0007] Preferably, the included angle α is in the range of 30°-40°.

[0008] Preferably, the included angle β is in the range of 50°-60°.

[0009] Preferably, the retaining assembly includes a first baffle connected to one side of the tooling fixture and a second baffle connected to the other side of the tooling fixture. One end of the first baffle and the second baffle extends to the mounting groove. Fixing holes are provided on both sides of the tooling fixture and on the first baffle and the second baffle. The first baffle and the second baffle are connected and fixed by fixing bolts passing through the fixing holes.

[0010] Preferably, the retaining component further includes an auxiliary stop block placed in the mounting groove, the auxiliary stop block being used to fill the gap in the mounting groove to abut the insert.

[0011] Preferably, guide holes are provided on both sides of the tooling fixture, and guide posts are fixedly connected to the side of the first and second baffles near the tooling fixture, with the guide posts being aligned and inserted into the guide holes.

[0012] Preferably, a limiting strip is fixedly connected inside the mounting groove, and a limiting groove for inserting the limiting strip is provided on the insert.

[0013] Preferably, it also includes a copper electrode, which is mounted on the EDM machine.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a tooling fixture design where the mounting groove forms an angle α with the X-axis plane and an angle β with the Y-axis plane. This design ensures that when the insert is installed in the mounting groove, its machining position is vertically upward. The electrode is then moved up and down by the EDM machine's drive mechanism to form the groove of the insert. This machining method reduces the number of machining steps for the insert's groove, effectively improving machining efficiency. Furthermore, the insert can be EDMed using a standard mirror EDM machine, reducing the machining requirements for the electrode. It can be manufactured using a standard CNC engraving machine, resulting in low cost, short processing cycle, and strong interchangeability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a process structure for inserts in the prior art;

[0017] Figure 2 This is a schematic diagram of another process structure for inserts in the prior art;

[0018] Figure 3 A schematic diagram of the insert processing device for injection molding molds of cedar fasteners;

[0019] Figure 4 A schematic diagram of the tooling fixtures and insert structure in the insert processing device for injection molding molds of cedar fasteners;

[0020] Figure 5 A schematic diagram of the tooling fixtures and auxiliary stops in the insert processing device for injection molding molds of cedar fasteners;

[0021] Figure 6 A schematic diagram of the second baffle structure in the insert processing device for injection molding molds of cedar fasteners;

[0022] Figure 7 A schematic diagram of the angle between the mounting groove and the X-axis in the main view of the insert processing device for injection molding molds of cedar fasteners;

[0023] Figure 8 This is a schematic diagram of the angle between the mounting groove and the Y-axis in the side view of the insert processing device for injection molding molds of cedar fasteners.

[0024] In the diagram: 1. Tooling fixture; 101. Mounting slot; 102. Fixing hole; 103. Guide hole; 2. Insert; 3. First baffle; 4. Auxiliary baffle; 5. Second baffle; 501. Guide post; 6. Fixing bolt; 7. Copper electrode. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figures 3-8This embodiment provides an insert processing device for injection molding molds of cedar fasteners, including a tooling fixture 1 and an insert 2. The insert 2 is used to be installed in the injection mold of cedar fasteners for injection molding of cedar fasteners. The tooling fixture 1 is fixed on the processing fixture of an EDM machine. The top of the tooling fixture 1 has a pair of symmetrical mounting grooves 101. The mounting grooves 101 and the X-axis plane are provided with an angle α, the range of which is 30°-40°, preferably 35°. The mounting grooves 101 and the Y-axis plane are provided with an angle β, the range of which is 50°-60°, preferably 55°. The insert 2 is installed in the mounting grooves 101. The tooling fixture 1 is equipped with a retaining component for locking the position of the insert 2. This insert processing device... It also includes a copper electrode 7, which is mounted on an EDM machine. The copper electrode 7 moves up and down along the Z-axis via the drive mechanism of the EDM machine. Through the unique design of the tooling fixture 1, the mounting groove 101 is at an angle α with the X-axis plane and at an angle β with the Y-axis plane. This ensures that when the insert 2 is installed in the mounting groove 101, its processing position is vertically upward. At this time, the copper electrode 7 is moved up and down by the drive mechanism of the EDM machine to process the forming groove of the insert 2. This processing method reduces the processing steps of the forming groove of the insert 2, effectively improving processing efficiency. Furthermore, the insert 2 can be EDMed using a common mirror EDM machine. The processing requirements of the copper electrode 7 are reduced, and it can be made with just a common engraving machine. This results in low cost, short processing cycle, and strong interchangeability.

[0027] In this embodiment, as Figure 3 , Figure 4 and Figure 5As shown, the retaining assembly includes a first baffle 3 connected to one side of the tooling fixture 1 and a second baffle 5 connected to the other side of the tooling fixture 1. One end of the first baffle 3 and the second baffle 5 extends to the mounting groove 101. Fixing holes 102 are provided on both sides of the tooling fixture 1 and on the first baffle 3 and the second baffle 5. The first baffle 3 and the second baffle 5 are connected and fixed by fixing bolts 6 passing through the fixing holes 102. The retaining assembly also includes an auxiliary baffle 4 placed in the mounting groove 101. The auxiliary baffle 4 is used to fill the gap in the mounting groove 101 to abut the insert 2. When assembling and fixing the insert 2 to the tooling fixture 1, the first baffle 3 is first fixedly connected to one side of the tooling fixture 1 by fixing bolts 6, and then the insert 2 is installed into the mounting groove. Inside the groove 101, the auxiliary stop block 4 is then installed into the mounting groove 101 and abuts against the insert 2. Then, the second stop plate 5 is fixedly connected to the other side of the tooling fixture 1 by the fixing bolt 6. By fixing the first stop plate 3 and the second stop plate 5 to both sides of the tooling fixture 1 respectively, the insert 2 and the auxiliary stop block 4 are fixed in the mounting groove 101. The auxiliary stop block 4 is used to press the insert 2 against the groove to fix the position of the insert 2. When the insert 2 is replaced after processing, only the second stop plate 5 needs to be removed to take out the auxiliary stop block 4 and the insert 2. Then, the new insert 2 is installed into the mounting groove 101, and the insert 2 is fixed again according to the above steps. During this process, the first stop plate 3 does not need to be removed, which improves the fixation effect of the insert 2.

[0028] In this embodiment, as Figure 5 and Figure 6 As shown, guide holes 103 are provided on both sides of the tooling fixture 1. Guide posts 501 are fixedly connected to the side of the first baffle 3 and the second baffle 5 near the tooling fixture 1. The guide posts 501 are aligned and inserted into the guide holes 103. There are two sets of guide posts 501 and guide holes 103. The guide posts 501 and guide holes 103 are used to position and assemble the first baffle 3 and the second baffle 5 with the tooling fixture 1, so as to avoid the first baffle 3 and the second baffle 5 from being deflected, which would affect the fixing effect on the insert 2 and prevent the copper electrode 7 from obstructing the processing of the insert 2.

[0029] In this embodiment, a limiting strip is fixedly connected inside the mounting groove 101, and a limiting groove is provided on the insert 2 for the limiting strip to be inserted. The limiting strip and the limiting groove are used to position and assemble the insert 2 in the mounting groove 101, so as to prevent the insert 2 from deviating from the mounting groove 101 and to ensure the machining accuracy of the insert 2.

[0030] Working principle: In use, the tooling fixture 1 is installed and fixed on the machining fixture of the EDM machine, and the insert 2 is installed on the fixture of the drive mechanism of the EDM machine. First, the first baffle 3 is fixedly connected to one side of the tooling fixture 1 by the fixing bolt 6. Then, the insert 2 is installed into the mounting groove 101, and the auxiliary baffle 4 is installed into the mounting groove 101 to abut against the insert 2. Then, the second baffle 5 is fixedly connected to the other side of the tooling fixture 1 by the fixing bolt 6. The first baffle 3 and the second baffle 5 are fixedly connected to both sides of the tooling fixture 1 respectively. The insert 2 and the auxiliary stop 4 are fixed in the mounting groove 101. The auxiliary stop 4 is used to press the insert 2 against the wall to fix its position. Then, the copper electrode 7 is moved up and down by the drive mechanism of the EDM machine to process the forming groove of the insert 2. This processing method reduces the processing steps of the forming groove of the insert 2, effectively improves the processing efficiency, and the insert 2 can be EDMed using an ordinary mirror EDM machine. The processing requirements of the copper electrode 7 are reduced, and it can be made with just an ordinary engraving machine. The cost is low, the processing cycle is short, and the interchangeability is strong.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A device for processing a fitting of a fir-type fastener injection molding mold, characterized by: The utility model provides a tooling fixture (1) and insert (2), the tooling fixture (1) top symmetry is provided with a pair of installation groove (101), the installation groove (101) is provided with the included angle alpha between X axle plane, the installation groove (101) is provided with the included angle beta between Y axle plane, the insert (2) is installed in installation groove (101), the tooling fixture (1) is installed with the retaining assembly for locking the position of insert (2).

2. The insert processing device for injection molding molds of cedar fasteners according to claim 1, characterized in that: The included angle alpha ranges from 30° to 40°.

3. The insert processing device for injection molding molds of cedar fasteners according to claim 1, characterized in that: The included angle beta ranges from 50° to 60°.

4. The insert processing device for injection molding molds of cedar fasteners according to claim 1, characterized in that: The retaining assembly includes a first baffle (3) connected to one side of the tooling fixture (1) and a second baffle (5) connected to the other side of the tooling fixture (1), one end of the first baffle (3) and the second baffle (5) extends to the installation groove (101), and a fixing hole (102) is formed on both sides of the tooling fixture (1) and the first baffle (3) and the second baffle (5); the first baffle (3) and the second baffle (5) are connected and fixed by a fixing bolt (6) passing through the fixing hole (102).

5. The insert processing device for injection molding molds of cedar fasteners according to claim 4, characterized in that: The retaining assembly further includes an auxiliary stop block (4) placed in the installation groove (101), which is used to fill the gap of the installation groove (101) to tightly abut the insert (2).

6. The apparatus of claim 4, wherein: Guide holes (103) are formed on both sides of the tooling fixture (1), guide columns (501) are fixedly connected to the side of the first baffle (3) and the second baffle (5) close to the tooling fixture (1), and the guide columns (501) are inserted into the guide holes (103) in a position-accurate manner.

7. The apparatus of claim 1, wherein: A limiting strip is fixedly connected inside the installation groove (101), and a limiting groove is formed on the insert (2) for inserting the limiting strip.

8. The apparatus of claim 1, wherein: A copper male (7) is further included, which is installed on a spark machine.

Images