Powder metallurgy lateral three-dimensional groove forming device

Abstract

The invention belongs to the field of powder metallurgy, and particularly relates to a powder metallurgy lateral three-dimensional groove forming device which comprises guide columns, an upper die plate, a middle die plate and a lower die plate, the guide columns longitudinally penetrate through the two sides of the upper die plate, the upper die plate can slide between the guide columns, an upper punch body is arranged at the bottom of the upper die plate, and the middle die plate is arranged under the upper die plate. A middle die plate is arranged under the middle die plate and can slide between the guide columns, a female die body is arranged on the top of the middle die plate, a lower die plate is arranged under the middle die plate and can slide between the guide columns, and a lower punch body is arranged on the top of the lower die plate. According to the powder metallurgy lateral three-dimensional groove forming device, expensive presses and molds are not needed, the equipment purchase cost and the mold development cost are effectively reduced, machining and production of hard alloy indexable blades are more economical and practical in equipment investment, and the cost competitiveness of enterprises is improved.

Description

Technical Field

[0001] The invention belongs to the field of powder metallurgy, in particular to a powder metallurgy lateral three-dimensional groove forming device. Background Art

[0002] In the processing and production of cemented carbide indexable inserts, the lateral three-dimensional chip breaker refers to the product having a concave and convex pattern on the side for deforming the iron chips.

[0003] At present, it is generally achieved by using an electric servo press with a lateral pressing function in combination with a high-precision mold. Or the three-dimensional chip breaker design of the product is processed in the vertical direction as a whole, and then the lateral hole is processed by subsequent drilling. The former requires expensive presses and molds, which is costly; the latter has many processes, low efficiency, and is more difficult to fix when processing holes, resulting in a high scrap rate.

[0004] To this end, the present invention provides a powder metallurgy lateral three-dimensional groove forming device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a powder metallurgy lateral three-dimensional groove forming device described in the present invention includes guide pillars, an upper template, a middle template and a lower template, guide pillars are longitudinally penetrated on both sides of the upper template, the upper template can slide between the guide pillars, an upper punch body is arranged at the bottom of the upper template, a middle template is arranged directly below the upper template, the middle template can slide between the guide pillars, a concave die body is arranged at the top of the middle template, a lower template is arranged directly below the middle template, the lower template can slide between the guide pillars, and a lower punch body is arranged at the top of the lower template.

[0007] Preferably, clamping heads are fixed on both sides of the upper template, and an upper punch fixing ring is provided on the top of the upper punch body, and the upper punch fixing ring is used to fix the upper punch body to the bottom of the upper template.

[0008] Preferably, a die fixing ring is provided on the outside of the die body, which is used to fix the die body to the top of the middle template. A die cavity is opened inside the die body, and side forming punches are provided on both sides of the inside of the die body. The ends of the side forming punches can extend into both sides of the die cavity. A reset spring is provided on the outside of the side forming punches, which is used to reset the side forming punches. An inclined block is provided at the end of the side forming punch close to the side wall of the die body, and a limiting block is provided on one side of the inclined block. The limiting block is used to fix the inclined block.

[0009] Preferably, the positions of the clamping head and the inclined block correspond exactly, and the clamping head can push the side forming punch into the two sides of the die cavity inside the die body.

[0010] Preferably, a core rod is provided inside the lower punch body, and the core rod extends into the die cavity inside the die body. A lower punch fixing ring is provided at the bottom of the lower punch body, and the lower punch fixing ring is used to fix the lower punch body to the top of the lower template.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. Compared with the method of using an electric servo press with a lateral pressing function in combination with a high-precision mold, the powder metallurgy lateral three-dimensional groove forming device described in the present invention does not require expensive presses and molds, effectively reducing the equipment procurement cost and mold development cost, making the processing and production of cemented carbide indexable inserts more economical in equipment investment, and improving the cost competitiveness of the enterprise.

[0013] 2. The powder metallurgy lateral three-dimensional groove forming device described in the present invention can complete complex three-dimensional groove forming in one pressing process, which changes the cumbersome process of designing the product's three-dimensional chip breaker groove as a whole in the vertical direction and then drilling the lateral holes subsequently. It reduces the processing steps, greatly shortens the processing cycle, improves production efficiency, and can meet the needs of large-scale production.

[0014] 3. The powder metallurgy lateral three-dimensional groove forming device described in the present invention does not require additional complex fixing operations to process lateral holes when processing lateral three-dimensional chip breaker grooves, thus avoiding increased processing difficulty and time waste due to fixing troubles, making the entire processing process smoother and easier to operate, and reducing the requirements on the operator's skill level.

[0015] 4. The powder metallurgy lateral three-dimensional groove forming device described in the present invention ensures the stability of product quality through precise loading, excellent pressing and convenient and smooth demolding process, reduces product quality problems caused by complex procedures, improper fixation and other factors, reduces the scrap rate, and improves the finished product output rate of cemented carbide indexable inserts, creating more economic benefits for the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 It is a front view structural diagram of the present invention;

[0019] Figure 3 It is the side view structure section view of the present invention Figure 1 ;

[0020] Figure 4It is a top view of the structure of the present invention;

[0021] Figure 5 It is the side view structure section view of the present invention Figure 2 ;

[0022] Figure 6 It is the side view structure section view of the present invention Figure 3 .

[0023] In the figure: 1. guide pin; 2. upper template; 3. middle template; 4. lower template; 5. core rod; 6. lower punch body; 7. lower punch fixing ring; 8. die body; 9. die fixing ring; 10. upper punch body; 11. upper punch fixing ring; 12. clamping head; 13. side forming punch; 14. reset spring; 15. inclined block; 16. limit block. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] like Figures 1 to 6 As shown, a powder metallurgy lateral three-dimensional groove forming device of an embodiment of the present invention includes guide pillars 1, an upper template 2, a middle template 3 and a lower template 4, guide pillars 1 are longitudinally penetrated on both sides of the upper template 2, the upper template 2 can slide between the guide pillars 1, an upper punch body 10 is arranged at the bottom of the upper template 2, a middle template 3 is arranged directly below the upper template 2, the middle template 3 can slide between the guide pillars 1, a die body 8 is arranged at the top of the middle template 3, a lower template 4 is arranged directly below the middle template 3, the lower template 4 can slide between the guide pillars 1, and a lower punch body 6 is arranged at the top of the lower template 4.

[0026] Pressing heads 12 are fixed on both sides of the upper template 2 , and an upper punch fixing ring 11 is provided on the top of the upper punch body 10 . The upper punch fixing ring 11 is used to fix the upper punch body 10 to the bottom of the upper template 2 .

[0027] A die fixing ring 9 is arranged on the outside of the die body 8, and the die fixing ring 9 is used to fix the die body 8 to the top of the middle template 3. A die cavity is opened inside the die body 8, and side forming punches 13 are arranged on both sides of the inside of the die body 8. The ends of the side forming punches 13 can extend into both sides of the die cavity. A reset spring 14 is arranged on the outside of the side forming punch 13, and the reset spring 14 is used to reset the side forming punch 13. An inclined block 15 is arranged at the end of the side forming punch 13 close to the side wall of the die body 8, and a limiting block 16 is arranged on one side of the inclined block 15, and the limiting block 16 is used to fix the inclined block 15.

[0028] The positions of the clamping head 12 and the inclined block 15 correspond exactly, and the clamping head 12 can push the side forming punch 13 into the two sides of the inner die cavity of the die body 8 .

[0029] A core rod 5 is arranged inside the lower punch body 6, and the core rod 5 extends into the die cavity inside the die body 8. A lower punch fixing ring 7 is arranged at the bottom of the lower punch body 6, and the lower punch fixing ring 7 is used to fix the lower punch body 6 to the top of the lower template 4.

[0030] Working principle: The lower template 4 drives the lower punch body 6 to move upward, so that the upper end of the lower punch body 6 enters the die cavity opened inside the die body 8 to form a charging space, and at the same time, the head of the core rod 5 moves upward to the upper plane of the die cavity of the die body 8 to fill the powder;

[0031] After the powder filling is completed, the upper template 2 drives the upper punch body 10 to move downward into the die cavity to press the powder, and at the same time, the lower punch body 6 moves upward to press the powder in both directions. While the upper template 2 drives the upper punch body 10 to move downward, the pressing head 12 follows and moves toward the inclined blocks 15 on both sides of the die body 8. The inclined surface inside the pressing head 12 contacts the inclined surface of the inclined block 15 and pushes the end of the side forming punch 13, so that the side forming punch 13 moves to both sides of the die cavity to press the lateral forming groove of the pressed blank;

[0032] After pressing and forming, the upper template 2 drives the upper punch body 10 upward, the clamping head 12 leaves the inclined block 15, and the side forming punch 13 returns to the initial position under the elastic force of the reset spring 14, and the middle template 3 drives the die body 8 downward, and the lower punch body 6 at the top of the lower template 4 pushes out the compact in the die cavity of the die body 8, thereby completing the demolding operation.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A powder metallurgy lateral three-dimensional groove forming device, comprising a guide column (1), an upper mold plate (2), a middle mold plate (3) and a lower mold plate (4), characterized in that: Guide pillars (1) are longitudinally passed through both sides of the upper template (2), the upper template (2) can slide between the guide pillars (1), an upper punch body (10) is arranged at the bottom of the upper template (2), a middle template (3) is arranged directly below the upper template (2), the middle template (3) can slide between the guide pillars (1), a die body (8) is arranged at the top of the middle template (3), a lower template (4) is arranged directly below the middle template (3), the lower template (4) can slide between the guide pillars (1), and a lower punch body (6) is arranged at the top of the lower template (4).

2. A powder metallurgy lateral three-dimensional groove forming device according to claim 1, characterized in that: A clamping head (12) is fixed on both sides of the upper template (2), and an upper punch fixing ring (11) is arranged on the top of the upper punch body (10). The upper punch fixing ring (11) is used to fix the upper punch body (10) to the bottom of the upper template (2).

3. A powder metallurgy lateral three-dimensional groove forming device according to claim 2, characterized in that: A die fixing ring (9) is arranged outside the die body (8), and the die fixing ring (9) is used to fix the die body (8) to the top of the middle mold plate (3). A die cavity is opened inside the die body (8), and side forming punches (13) are arranged on both sides inside the die body (8). The ends of the side forming punches (13) can extend into both sides of the die cavity. A reset spring (14) is arranged outside the side forming punch (13), and the reset spring (14) is used to reset the side forming punch (13). An inclined block (15) is arranged at the end of the side forming punch (13) close to the side wall of the die body (8), and a limit block (16) is arranged on one side of the inclined block (15). The limit block (16) is used to fix the inclined block (15).

4. A powder metallurgy lateral three-dimensional groove forming device according to claim 3, characterized in that: The positions of the clamping head (12) and the inclined block (15) correspond exactly, and the clamping head (12) can push the side forming punch (13) into the two sides of the inner die cavity of the die body (8).

5. A powder metallurgy lateral three-dimensional groove forming device according to claim 4, characterized in that: A core rod (5) is arranged inside the lower punch body (6), and the core rod (5) extends into the die cavity inside the die body (8). A lower punch fixing ring (7) is arranged at the bottom of the lower punch body (6), and the lower punch fixing ring (7) is used to fix the lower punch body (6) to the top of the lower template (4).

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