A split forging bucket tooth die

Abstract

The utility model provides a split forging bucket tooth mold, which relates to the technical field of molds, including an upper mold and a lower mold, the upper mold including an upper mold sleeve and an upper mold core, the upper mold core is assembled in the interior of the upper mold sleeve by interference fit; the lower mold includes a lower mold sleeve, a first lower mold core and a second lower mold core, the first lower mold core and the second lower mold core constitute a lower mold total core, the lower mold total core is assembled in the interior of the lower mold sleeve by interference fit, and mold grooves are provided below the interiors of the first lower mold core and the second lower mold core; the utility model consists of an upper mold and a lower mold, the upper mold core and the upper mold sleeve are assembled together by interference fit, the lower mold sleeve and the lower mold total core composed of the first lower mold core and the second lower mold core are assembled together by interference fit, the split structure, CNC can process the mold using conventional tools, when the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair, it is easy to repair and can be reused many times, thereby reducing the mold opening cost.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a split forging bucket tooth mold. Background Art

[0002] Excavators occupy a very important position in engineering machinery and are widely used in the production of construction, mining, railways, metallurgy and other industries. Each excavator is generally equipped with 5 to 10 bucket teeth. Excavator bucket teeth are important parts of the excavator. They are similar to human teeth and are also vulnerable parts. They are combined bucket teeth composed of tooth seats and tooth tips. The two are connected by pins. The bucket teeth are subject to severe wear and impact during use. The service life of a single bucket tooth is short and the consumption is huge. Forged bucket teeth have higher comprehensive performance, long service life and good mechanical strength, which requires the use of molds;

[0003] Bucket teeth due to their special shape (such as Figure 6 ) results in a single demoulding method. The bucket tooth mold produced by a screw press has a deeper mold cavity. The manufacture of such a deep cavity mold requires a longer tool, and even requires the use of anode discharge machining. The subsequent maintenance of the deep cavity mold is difficult and inconvenient, which seriously affects the production efficiency. Therefore, the utility model proposes a split forging bucket tooth mold to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a split forging bucket tooth mold. The split forging bucket tooth mold has a split structure. The CNC can process the mold using conventional tools. When the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair it. It is easy to repair and can be reused many times, thereby reducing the mold opening cost.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a split forging bucket tooth die, including an upper die and a lower die, the upper die includes an upper die sleeve and an upper die core, the upper die core is assembled inside the upper die sleeve by interference fit;

[0006] The lower mold includes a lower mold sleeve, a first lower mold core and a second lower mold core, the first lower mold core and the second lower mold core constitute a lower mold total core, and the lower mold total core is assembled inside the lower mold sleeve by interference fit, mold grooves are provided at the lower parts of the first lower mold core and the second lower mold core, and fitting grooves are provided at the upper parts of the first lower mold core and the second lower mold core, and the fitting grooves are adapted to the lower end of the upper mold core.

[0007] A further improvement is that a boss is provided above the outer side of the upper die sleeve, and the boss is used to be installed on the die frame through a pressure plate.

[0008] A further improvement is that a fixing hole is provided at the middle position of the top of the upper mold core, and ventilation holes are provided on both sides of the top of the upper mold sleeve, and the ventilation holes pass through the upper mold sleeve.

[0009] A further improvement is that the outer side of the lower mold sleeve is stepped, and both sides of the top of the lower mold sleeve are provided with air-permeable grooves.

[0010] A further improvement is that: the outer sides of the first lower mold core and the second lower mold core are both provided with mounting holes, and the first lower mold core and the second lower mold core are fixed by bolts through the mounting holes.

[0011] A further improvement is that the inner side surface of the upper mold sleeve is inclined, the outer side surface of the upper mold core is inclined, and the oblique angle of the outer side surface of the upper mold core matches the oblique angle of the inner side surface of the upper mold sleeve.

[0012] A further improvement is that the inner side surface of the lower mold sleeve is inclined, the outer side surface of the lower mold core is inclined, and the inclined angle of the outer side surface of the lower mold core matches the inclined angle of the inner side surface of the lower mold sleeve.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is composed of an upper mold and a lower mold. The upper mold core and the upper mold sleeve are assembled together by interference fit. The lower mold sleeve and the first lower mold core and the second lower mold core are assembled together by interference fit. The utility model has a split structure. The CNC can process the mold using conventional tools. When the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair it. It is easy to repair and can be used repeatedly, which reduces the cost of mold opening.

[0015] 2. The first lower mold core and the second lower mold core of the utility model are fixed by mounting holes and bolts, which are convenient for disassembly and repair of the internal mold groove and fitting groove, easy for processing, and convenient for repeated use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an assembly cross-sectional view of the utility model;

[0017] Figure 2 It is a schematic diagram of the upper mold of the utility model;

[0018] Figure 3 This is a schematic diagram of the bottom of the upper mold of the utility model;

[0019] Figure 4 It is a schematic diagram of the lower mold of the utility model;

[0020] Figure 5 This is a schematic diagram of the first lower mold core of the utility model;

[0021] Figure 6 Schematic diagram of bucket teeth.

[0022] Among them: 1. upper mold sleeve; 2. upper mold core; 3. lower mold sleeve; 4. first lower mold core; 5. second lower mold core; 6. mold groove; 7. fitting groove; 8. boss; 9. fixing hole; 10. vent hole; 11. vent groove; 12. installation hole. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0024] Embodiment 1

[0025] according to Figure 1 , 2 As shown in , 3, 4, and 5, this embodiment proposes a split forging bucket tooth die, including an upper die and a lower die, the upper die includes an upper die sleeve 1 and an upper die core 2, and the upper die core 2 is assembled inside the upper die sleeve 1 by interference fit;

[0026] The lower mold includes a lower mold sleeve 3, a first lower mold core 4 and a second lower mold core 5, the first lower mold core 4 and the second lower mold core 5 form a lower mold core, the lower mold core is assembled inside the lower mold sleeve 3 by interference fit, the first lower mold core 4 and the second lower mold core 5 are provided with a mold groove 6 at the bottom, and the first lower mold core 4 and the second lower mold core 5 are provided with a fitting groove 7 at the top, the fitting groove 7 is adapted to the lower end of the upper mold core 2. The upper mold and the lower mold are composed of an upper mold core 2 and an upper mold sleeve 1, which are assembled together by interference fit, and a lower mold core composed of a lower mold sleeve 3 and the first lower mold core 4 and the second lower mold core 5 is assembled together by interference fit. It has a split structure, and CNC can process the mold using conventional tools. When the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair it. It is easy to repair and can be reused many times.

[0027] A boss 8 is provided above the outer side of the upper die sleeve 1, and the boss 8 is used to be installed on the die frame through a pressure plate. When in use, the boss 8 of the upper die sleeve 1 is installed on the die frame through the pressure plate, which is convenient for assembly and fixing.

[0028] A fixing hole 9 is provided at the middle position of the top of the upper mold core 2, and air holes 10 are provided on both sides of the top of the upper mold sleeve 1, and the air holes 10 pass through the upper mold sleeve 1. When in use, the upper mold core 2 can be assembled to the output end of the pressure device through the fixing hole 9 as needed. When the upper mold is installed on the lower mold, the air at the connection is discharged through the air holes 10 to avoid air pressure affecting the installation.

[0029] The outer side of the lower mold sleeve 3 is stepped, and both sides of the top of the lower mold sleeve 3 are provided with air-permeable grooves 11. The air-permeable grooves 11 are connected to the inside of the lower mold sleeve. When the upper mold is installed on the lower mold, the air inside the lower mold sleeve 3 is discharged through the air-permeable grooves 11 to avoid air pressure affecting the installation.

[0030] The outer sides of the first lower mold core 4 and the second lower mold core 5 are both provided with mounting holes 12, and the first lower mold core 4 and the second lower mold core 5 are fixed by bolts through the mounting holes 12. The first lower mold core 4 and the second lower mold core 5 are fixed by bolts through the mounting holes 12, which is convenient for disassembly to repair the internal mold groove 6 and the fitting groove 7, and is convenient for repeated use.

[0031] Embodiment 2

[0032] according to Figure 1 , 2 As shown in , 3, 4, and 5, this embodiment proposes a split forging bucket tooth die, including an upper die and a lower die, the upper die includes an upper die sleeve 1 and an upper die core 2, and the upper die core 2 is assembled inside the upper die sleeve 1 by interference fit;

[0033] The lower mold includes a lower mold sleeve 3, a first lower mold core 4 and a second lower mold core 5, the first lower mold core 4 and the second lower mold core 5 form a lower mold core, the lower mold core is assembled inside the lower mold sleeve 3 by interference fit, the first lower mold core 4 and the second lower mold core 5 are provided with a mold groove 6 at the bottom, and the first lower mold core 4 and the second lower mold core 5 are provided with a fitting groove 7 at the top, the fitting groove 7 is adapted to the lower end of the upper mold core 2. The upper mold and the lower mold are composed of an upper mold core 2 and an upper mold sleeve 1, which are assembled together by interference fit, and a lower mold core composed of a lower mold sleeve 3 and the first lower mold core 4 and the second lower mold core 5 is assembled together by interference fit. It has a split structure, and CNC can process the mold using conventional tools. When the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair it. It is easy to repair and can be reused many times.

[0034] The outer sides of the first lower mold core 4 and the second lower mold core 5 are both provided with mounting holes 12, and the first lower mold core 4 and the second lower mold core 5 are fixed by bolts through the mounting holes 12. The first lower mold core 4 and the second lower mold core 5 are fixed by bolts through the mounting holes 12, which is convenient for disassembly to repair the internal mold groove 6 and the fitting groove 7, and is convenient for repeated use.

[0035] The inner side of the upper mold sleeve 1 is inclined, and the outer side of the upper mold core 2 is inclined, and the inclined angle of the outer side of the upper mold core 2 matches the inclined angle of the inner side of the upper mold sleeve 1. The inner side of the lower mold sleeve 3 is inclined, and the outer side of the lower mold core is inclined, and the inclined angle of the outer side of the lower mold core matches the inclined angle of the inner side of the lower mold sleeve 3. Figure 1As shown, this oblique interference fit makes installation easy and quick, and is tightly and stably fixed.

[0036] The split-type forging bucket tooth mold is composed of an upper mold and a lower mold. The upper mold core 2 and the upper mold sleeve 1 are assembled together by interference fit. The lower mold sleeve 3 and the first lower mold core 4 and the second lower mold core 5 are assembled together by interference fit. The split structure allows CNC to process the mold using conventional tools. When the mold is worn and needs to be repaired, it is convenient to disassemble and directly weld and repair. It is easy to repair and can be reused many times, reducing the mold opening cost. The first lower mold core 4 and the second lower mold core 5 are fixed by bolts through the mounting hole 12, which is convenient for disassembly to repair the internal mold groove 6 and the fitting groove 7. It is easy to process and convenient for repeated use.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A split forging bucket tooth die, comprising an upper die and a lower die, characterized in that: The upper mold comprises an upper mold sleeve (1) and an upper mold core (2), and the upper mold core (2) is assembled inside the upper mold sleeve (1) by interference fit; The lower mold comprises a lower mold sleeve (3), a first lower mold core (4) and a second lower mold core (5); the first lower mold core (4) and the second lower mold core (5) constitute a lower mold core; the lower mold core is assembled inside the lower mold sleeve (3) by interference fit; a mold groove (6) is provided at the lower part of the first lower mold core (4) and the second lower mold core (5); and a fitting groove (7) is provided at the upper part of the first lower mold core (4) and the second lower mold core (5); the fitting groove (7) is adapted to the lower end of the upper mold core (2).

2. The split forging bucket tooth die according to claim 1, characterized in that: A boss (8) is provided above the outer side of the upper die sleeve (1), and the boss (8) is used to be installed on the die frame through a pressure plate.

3. The split forging bucket tooth die according to claim 1, characterized in that: A fixing hole (9) is provided at the middle position of the top of the upper mold core (2), and ventilation holes (10) are provided on both sides of the top of the upper mold sleeve (1), and the ventilation holes (10) pass through the upper mold sleeve (1).

4. The split forging bucket tooth die according to claim 1, characterized in that: The outer side of the lower mold sleeve (3) is stepped, and ventilation grooves (11) are provided on both sides of the top of the lower mold sleeve (3).

5. The split forging bucket tooth die according to claim 1, characterized in that: The outer sides of the first lower mold core (4) and the second lower mold core (5) are both provided with mounting holes (12), and the first lower mold core (4) and the second lower mold core (5) are fixed by bolts through the mounting holes (12).

6. The split forging bucket tooth die according to claim 1, characterized in that: The inner side surface of the upper mold sleeve (1) is inclined, and the outer side surface of the upper mold core (2) is inclined, and the inclined angle of the outer side surface of the upper mold core (2) matches the inclined angle of the inner side surface of the upper mold sleeve (1).

7. The split forging bucket tooth die according to claim 6, characterized in that: The inner side surface of the lower mold sleeve (3) is inclined, and the outer side surface of the lower mold core is inclined. The inclined angle of the outer side surface of the lower mold core matches the inclined angle of the inner side surface of the lower mold sleeve (3).

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