Die block self-locking positioning mechanism

Abstract

The utility model discloses a mould insert self -locking type positioning mechanism, including mould, and the insert slot is seted up in the insert installation position on the mould, and the insert is inserted in the insert slot, and the waterway or oil circuit is provided with below the insert slot on the mould, the inside surface of insert slot is evenly provided with a plurality of positioning slots along the circumference, and the positioning hole is provided with on the insert corresponding positioning slot, and the guide pin insertion hole is vertically provided with in the insert center, and the guide pin insertion hole is communicated positioning hole, and the positioning hole and positioning slot are inserted in the positioning pin, and the guide pin insertion hole is inserted in the guide pin. The utility model discloses the positioning hole is processed on the mould, and the positioning pin is preassembled into the insert positioning hole before the insert is installed, and after installing the insert in place, the guide pin is driven into the positioning slot in the mould, and the insert and the mould are fixed together and locked. The utility model discloses the self -locking type positioning pin structure, effectively solved the problem that the insert cannot be fixed by adopting the mode such as hanging platform screw because of the position space limitation.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and in particular to a self-locking positioning mechanism for mold inserts. Background Technology

[0002] To facilitate mold processing and maintenance or to meet the needs of the processing technology, some parts of the mold need to be designed as inserts. In the later production process, if the mold core is partially damaged, an insert structure should also be used.

[0003] Mold inserts are typically embedded in the mold core using a straight-through method and secured with a hanging shoulder, locating pin, or screw.

[0004] like Figure 1 As shown in the figure, Option A uses a straight-through shoulder structure to embed the insert into the mold core from the back; Option B uses a positioning pin or screw to lock the insert directly to the front; and Option C uses a screw to lock the insert from the back in a straight-through locking manner.

[0005] However, the above solution has the following drawbacks:

[0006] 1. If there is water or oil channel interference below the position of the mold core insert, it is not possible to use solutions such as A or C to hang from the back shoulder or lock with screws.

[0007] 2. When the insert is located in the molding area, if Option B is used to lock the front directly with a locating pin or screw, the locating pin cannot be fixed, and the locking screw is also prone to high temperature deformation and loosening, making the insert easy to fall off.

[0008] 3. If the insert is small, the locking screw cannot be installed due to space constraints. Utility Model Content

[0009] To solve the above-mentioned technical problems, this utility model designs a mold insert self-locking positioning mechanism.

[0010] The present invention adopts the following technical solution:

[0011] A mold insert self-locking positioning mechanism includes a mold core, an insert slot on the mold core at the insert mounting position, an insert inserted into the insert slot, a water or oil passage on the mold core below the insert slot, a plurality of positioning grooves evenly arranged along the circumference on the inner side of the insert slot, a positioning hole on the insert corresponding to the positioning groove, a guide pin insertion hole vertically arranged at the center of the insert, the guide pin insertion hole connecting to the positioning hole, positioning pins correspondingly inserted into the positioning hole and the positioning groove, and a guide pin correspondingly inserted into the guide pin insertion hole.

[0012] Preferably, the length of the locating pin is greater than half the width of the insert minus the radius of the guide pin, and less than half the width of the insert.

[0013] Preferably, the guide pin insertion hole and the guide pin are fitted with a clearance fit.

[0014] Preferably, the positioning pin is clearance-fitted with the diameter of the positioning hole and the positioning groove.

[0015] Preferably, the inner side of the insert slot is provided with two positioning grooves evenly arranged along the circumference, and positioning pin one and positioning pin two are inserted into the two positioning grooves respectively.

[0016] Preferably, the front ends of the guide pin and the positioning pin are provided with guide cone angles.

[0017] The beneficial effects of this utility model are: (1) It solves the problem that the insert cannot be fixed by means of hanging shoulder, screw or other methods due to space position limitation; (2) The structure is simple and practical and easy to process; (3) It is not limited by the position of oil and water channels in the mold. Attached Figure Description

[0018] Figure 1 These are the three existing forms of inserts being set into the mold core;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the mold core in this utility model;

[0021] Figure 4 This is a schematic diagram of one structure of the insert in this utility model;

[0022] Figure 5 This is a structural schematic diagram of positioning pin one, positioning pin two, and guide pin in this utility model;

[0023] In the diagram: 1. Mold core, 2. Water channel, 3. Inlay, 4. Positioning pin one, 5. Positioning pin two, 6. Guide pin, 7. Positioning groove one, 8. Positioning groove two, 9. Inlay slot, 10. Positioning hole, 11. Guide pin insertion hole. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0025] Example: Figures 2-5As shown, a mold insert self-locking positioning mechanism includes a mold core 1, an insert slot 9 on the mold core at the insert installation position, an insert 3 inserted into the insert slot, a water channel 2 on the mold core below the insert slot, positioning groove 1 7 and positioning groove 2 symmetrically arranged on the inner side of the insert slot, positioning hole 10 on the insert corresponding to the positioning groove, guide pin insertion hole 11 vertically arranged at the center of the insert, the guide pin insertion hole communicating with the positioning hole, positioning pin 1 4 and positioning pin 2 5 correspondingly inserted into the positioning hole and positioning groove, and guide pin 6 correspondingly inserted into the guide pin insertion hole.

[0026] The length of the locating pin is greater than half the width of the insert minus the radius of the guide pin, but less than half the width of the insert. The guide pin insertion hole and the guide pin are clearance-fitted. The locating pin is clearance-fitted with the diameter of the locating hole and the locating groove. The front ends of both the guide pin and the locating pin are provided with guide cone angles.

[0027] This utility model involves machining positioning holes on the mold core, and positioning pins 4 and 5 (as shown in the image) are used before the insert is installed. Figure 2 As shown, the insert is pre-installed into the positioning hole of the insert. After the insert 3 is installed in place, the guide pin 6 is installed to drive the positioning pin 1 4 and positioning pin 2 5 into the positioning groove 1 7 and positioning groove 2 8 in the mold core, so as to fix the insert and the mold core together and lock them.

[0028] This utility model adopts a self-locking positioning pin structure, which effectively solves the problem that the insert cannot be fixed by means of mounting screws due to space limitations.

[0029] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A mold insert self-locking positioning mechanism, comprising a mold core, an insert slot provided on the mold core at the insert mounting position, an insert being inserted into the insert slot, and a water or oil passage provided on the mold core below the insert slot, characterized in that... The inner side of the insert slot is evenly provided with multiple positioning grooves along the circumference. The insert is provided with positioning holes corresponding to the positioning grooves. The center of the insert is provided with a guide pin insertion hole, which is connected to the positioning hole. Positioning pins are inserted into the positioning hole and the positioning groove, and guide pins are inserted into the guide pin insertion hole.

2. The mold insert self-locking positioning mechanism according to claim 1, characterized in that, The length of the positioning pin is greater than half the width of the insert minus the radius of the guide pin, and less than half the width of the insert.

3. The mold insert self-locking positioning mechanism according to claim 1, characterized in that, The guide pin insertion hole and the guide pin are fitted with a clearance fit.

4. The mold insert self-locking positioning mechanism according to claim 1, characterized in that, The positioning pin is clearance-fitted with the positioning hole and positioning groove diameter.

5. The mold insert self-locking positioning mechanism according to claim 1, characterized in that, The inner side of the insert slot is provided with two positioning grooves evenly arranged along the circumference, and positioning pin one and positioning pin two are inserted into the two positioning grooves respectively.

6. The mold insert self-locking positioning mechanism according to claim 1, characterized in that, The front ends of the guide pin and the positioning pin are provided with guide cone angles.

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