Improved forging die

Abstract

The utility model relates to the technical field of dies, in particular to an improved forging die which comprises a base and a top plate, the base is fixedly connected with the top plate through a supporting column, the upper surface of the base is fixedly connected with a lower die through a bolt, a support is fixedly connected in the lower die, an ejection mechanism is arranged in the support, and the upper surface of the lower die is fixedly connected with the ejection mechanism. A clamping mechanism is arranged in the lower mold, the lower mold is in clearance fit with the outer wall of the mold core, and the top plate is fixedly connected with the outer wall of the hydraulic cylinder. When the forged automobile part adheres to a forming groove in the mold core, a worm is rotated, the worm drives two worm gears to rotate, the worm gears drive threaded cylinders to rotate, the threaded cylinders drive threaded rods to move, the height of the threaded rods in the vertical direction changes during movement, the threaded rods drive vertical rods to slide upwards, and the vertical rods drive supporting plates to move upwards. The supporting plate ejects the automobile part in the die core out, and when the forged automobile part adheres to the interior of the forming groove in the die core, the automobile part can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an improved forging mold. Background Art

[0002] Forging dies are widely used in the field of machinery. In the production of automobile parts, some automobile parts need to be forged using forging dies during processing.

[0003] For example, a car camshaft forging die with patent number CN210160336U includes a lower die seat and an upper die seat, the lower die seat is provided with a guide rod, the guide rod is provided with upper and lower distributed support plates and an upper die seat, the upper die seat is slidably connected to the guide rod, and the support plate is fixedly connected to the guide rod. The above document still has deficiencies. When in use, the lower die seat and the upper die seat are tightly pressed together by the tightening hydraulic cylinders provided on both sides of the lifting hydraulic cylinder to avoid gap separation between the lower die seat and the upper die seat during the forging process, and the extrusion push column is pressed against the lower die seat. Compacting the softened metal in the mold cavity can avoid gap defects in the softened metal. However, when using the above-mentioned forging die to forge automobile parts, the forged automobile parts are easy to adhere to the inside of the forming groove. Using external tools to lift them out can easily cause damage to the automobile parts. When the forged automobile parts adhere to the forming groove inside the mold core, it is inconvenient to remove the automobile parts. At the same time, the weight of the forging die is usually heavy. When forging different automobile parts, it is necessary to replace the die. The workload of replacing the die is large, which is not convenient for forging automobile parts of different models. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to take out the automobile parts when the forged automobile parts adhere to the forming groove inside the die core, and proposes an improved forging die.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An improved forging die is designed, comprising a base and a top plate. The base is fixedly connected to the top plate via a support. The upper surface of the base is fixedly connected to a lower die via bolts. A bracket is fixedly connected to the interior of the lower die. An ejection mechanism is provided inside the bracket. A clamping mechanism is provided inside the lower die. The lower die is clearance-matched with the outer wall of the die core, and the top plate is fixedly connected to the outer wall of the hydraulic cylinder.

[0007] Preferably, the ejection mechanism includes a worm, the outer walls of both ends of the worm are rotatably connected to the bracket through bearings, the worm is meshed with two worm wheels, the worm wheel is fixed to the outer wall of the threaded barrel, the outer wall of the threaded barrel is rotatably connected to the bracket through bearings, the internal thread of the threaded barrel is connected to a screw, the upper end of the screw is fixed to a vertical rod 1, the outer wall of the vertical rod 1 is slidably connected to the lower mold and the mold core, the upper end of the vertical rod 1 is fixed to a support plate by bolts, and the outer wall of the support plate fits the mold core.

[0008] Preferably, the clamping mechanism includes a sliding rod and a slider, the outer walls of the sliding rod and the slider are both slidably connected to the lower mold, the slider is fixed to the outer wall of the sliding rod, the outer wall of the sliding rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the lower mold and the slider, the outer wall of the sliding rod is matched with the through hole gap set in the vertical plate, an ear plate is fixed above the vertical plate, and the ear plate is fixed to the outer wall of the mold core.

[0009] Preferably, the hydraulic rod of the hydraulic cylinder is fixedly connected to the upper mold, and a forming block is fitted in the internal gap of the upper mold.

[0010] Preferably, a second vertical rod is fixed to the upper surface of the upper mold, an outer wall of the second vertical rod is slidably connected to a sleeve, and the sleeve is fixed to the lower surface of the top plate.

[0011] The improved forging die proposed by the utility model has the following beneficial effects: through the cooperation among the worm, worm wheel, threaded barrel, screw, vertical rod and support plate, when the forged automobile part adheres to the forming groove inside the mold core, the worm is rotated, the worm drives the two worm wheels to rotate, the worm wheel drives the threaded barrel to rotate, the threaded barrel drives the screw to move, the vertical height of the screw changes during movement, the screw drives the vertical rod to slide upward, the vertical rod drives the support plate to move upward, the support plate pushes the automobile part out of the mold core, and when the forged automobile part adheres to the forming groove inside the mold core, it is convenient to take out the automobile part.

[0012] Through the cooperation between the slide rod, the slider, the spring, the vertical plate and the ear plate, the slide rod is pulled, and the slide rod drives the slider to slide. The slider compresses the spring, and the end of the slide rod is separated from the through hole set inside the vertical plate. The slide rod no longer positions the vertical plate. The mold core, the ear plate and the vertical plate are taken out and replaced. The replaced mold core is placed into the interior of the lower mold, and the slide rod is released. The spring drives the slider to slide in the opposite direction under the elastic action, and the slider drives the slide rod to slide in the opposite direction. The slide rod is inserted into the interior of the vertical plate, and the vertical plate is clamped and fixed to the interior of the lower mold to complete the replacement of the mold core. The forming block is replaced in the same way. The forming block and the mold core can be replaced without replacing the mold. The workload is small, and it is convenient for forging different models of automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural sectional view of the utility model;

[0015] Figure 3 This is a structural diagram of the connection between the top plate, the second vertical rod and the sleeve in the utility model;

[0016] Figure 4 This is a structural diagram of the connection between the mold core and the support plate of the utility model;

[0017] Figure 5 This is a schematic structural diagram of the connection between the worm, worm wheel and threaded barrel in the present invention;

[0018] Figure 6 This is a structural diagram of the connection between the slide rod, the slider and the spring in the utility model.

[0019] In the figure: 1. base, 2. top plate, 3. ejection mechanism, 301. worm, 302. worm gear, 303. threaded barrel, 304. screw, 305. vertical rod 1, 306. support plate, 4. clamping mechanism, 401. slide bar, 402. slider, 403. spring, 404. vertical plate, 405. ear plate, 5. lower mold, 6. bracket, 7. mold core, 8. hydraulic cylinder, 9. upper mold, 10. forming block, 11. vertical rod 2, 12. sleeve. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Refer to the attached Figure 1-6 In this embodiment, an improved forging die includes a base 1 and a top plate 2. The base 1 is fixedly connected to the top plate 2 via a support. A lower die 5 is fixedly connected to the upper surface of the base 1 via bolts. A bracket 6 is fixedly connected to the interior of the lower die 5. An ejection mechanism 3 is provided inside the bracket 6. The ejection mechanism 3 facilitates ejecting automobile parts adhered to the forming groove in the die core 7. A clamping mechanism 4 is provided inside the lower die 5. The clamping mechanism 4 clamps and fixes the die core 7 to the interior of the lower die 5 and clamps and fixes the forming block 10 to the interior of the upper die 9.

[0022] The lower mold 5 is matched with the outer wall gap of the mold core 7, the top plate 2 is fixedly connected to the outer wall of the hydraulic cylinder 8, the hydraulic cylinder 8 is fixed to the inside of the top plate 2 by bolts, the hydraulic rod of the hydraulic cylinder 8 is fixedly connected to the upper mold 9, the hydraulic cylinder 8 drives the upper mold 9 to move, the internal gap of the upper mold 9 is matched with a forming block 10, the upper surface of the upper mold 9 is fixedly connected with a vertical rod 2 11, the upper mold 9 drives the vertical rod 2 11 to move, the outer wall of the vertical rod 2 11 is connected to the sleeve 12 for sliding, the vertical rod 2 11 drives the internal sliding of the sleeve 12, the vertical rod 2 11 and the sleeve 12 guide the movement of the upper mold 9, and the sleeve 12 is fixed to the lower surface of the top plate 2.

[0023] The ejection mechanism 3 includes a worm 301, a worm wheel 302, a threaded barrel 303, a screw 304, a vertical rod 305 and a support plate 306. The outer walls of both ends of the worm 301 are rotatably connected to the bracket 6 via bearings. The worm 301 is meshed and connected with the two worm wheels 302. The worm 301 drives the two worm wheels 302 to rotate. The threads on both sides of the worm 301 have the same direction. The worm wheel 302 is fixed to the outer wall of the threaded barrel 303. The worm wheel 302 drives the threaded barrel 303 to rotate. The outer wall of the threaded barrel 303 is rotatably connected to the bracket 6 via bearings.

[0024] The internal thread of the threaded barrel 303 is connected to a screw rod 304, which drives the screw rod 304 to move. The upper end of the screw rod 304 is fixedly connected to a vertical rod 1 305, which drives the vertical rod 1 305 to slide. The outer wall of the vertical rod 1 305 is slidably connected to the lower mold 5 and the mold core 7. The upper end of the vertical rod 1 305 is fixedly connected to a support plate 306 by bolts. The vertical rod 1 305 drives the support plate 306 to move. The support plate 306 can be disassembled, and the outer wall of the support plate 306 is in contact with the mold core 7.

[0025] When the forged automobile part adheres to the forming groove inside the mold core 7, the worm 301 is rotated, and the worm 301 drives the two worm wheels 302 to rotate, and the worm wheel 302 drives the threaded barrel 303 to rotate, and the threaded barrel 303 drives the screw 304 to move. The height of the screw 304 in the vertical direction changes during movement, and the screw 304 drives the vertical rod 305 to slide upward, and the vertical rod 305 drives the support plate 306 to move upward, and the support plate 306 pushes the automobile part out of the mold core 7. When the forged automobile part adheres to the forming groove inside the mold core 7, it is convenient to take out the automobile part.

[0026] The clamping mechanism 4 includes a slide bar 401, a slider 402, a spring 403, a vertical plate 404 and an ear plate 405. The outer walls of the slide bar 401 and the slider 402 are slidably connected to the lower mold 5. The upper mold 9 is also provided with a clamping mechanism 4 to clamp and fix the forming block 10 to the interior of the upper mold 9. The slider 402 is fixed to the outer wall of the slide bar 401. The outer wall of the slide bar 401 is sleeved with a spring 403. The model of the spring 403 is selected according to actual use requirements to meet the work needs. The two ends of the spring 403 are fixedly connected to the lower mold 5 and the slider 402 respectively. The spring 403 can drive the slider 402 to slide under the elastic action;

[0027] The outer wall of the slide bar 401 is in clearance with the through hole provided in the vertical plate 404. The slide bar 401 cooperates with the through hole provided in the vertical plate 404 to clamp and fix the position of the vertical plate 404. An ear plate 405 is fixed on the upper part of the vertical plate 404. The vertical plate 404 fixes the position of the ear plate 405. The outer walls of the vertical plate 404 and the ear plate 405 are both fitted with the lower mold 5. The ear plate 405 is fixed to the outer wall of the mold core 7. The ear plate 405 in the clamping mechanism 4 provided inside the upper mold 9 is fixed to the outer wall of the forming block 10.

[0028] The slide bar 401 is pulled, and the slide bar 401 drives the slider 402 to slide. The slider 402 compresses the spring 403, and the end of the slide bar 401 is separated from the through hole set inside the vertical plate 404. The slide bar 401 no longer positions the vertical plate 404, and the mold core 7, the ear plate 405 and the vertical plate 404 are taken out for replacement. The replaced mold core 7 is placed into the interior of the lower mold 5, and the slide bar 401 is released. The spring 403 drives the slide bar 402 to slide in the opposite direction under the elastic action, and the slide bar 402 drives the slide bar 401 to slide in the opposite direction. The slide bar 401 is inserted into the interior of the vertical plate 404, and the vertical plate 404 is clamped and fixed to the interior of the lower mold 5, completing the replacement of the mold core 7. The forming block 10 is replaced in the same way. The forming block 10 and the mold core 7 can be replaced. There is no need to replace the mold, the workload is small, and it is convenient for forging different models of automobile parts.

[0029] Working principle:

[0030] When forging an automobile part using the improved forging die, the automobile part to be forged is placed in the forming groove inside the die core 7, and the hydraulic cylinder 8 is started. The hydraulic cylinder 8 drives the upper die 9 to move downward, and the upper die 9 drives the forming block 10 to move downward. The forming block 10 cooperates with the forming groove inside the die core 7 to forge the automobile part. The hydraulic cylinder 8 is started in the reverse direction, and the hydraulic cylinder 8 drives the upper die 9 to move upward, thereby driving the forming block 10 to move upward.

[0031] Ejection stage of automotive parts after forging:

[0032] When the forged automobile part adheres to the forming groove inside the mold core 7, the worm 301 is rotated, and the worm 301 drives the two worm wheels 302 to rotate, and the worm wheels 302 drive the threaded barrel 303 to rotate, and the threaded barrel 303 drives the screw 304 to move. The height of the screw 304 changes in the vertical direction during movement, and the screw 304 drives the vertical rod 1 305 to slide upward, and the vertical rod 1 305 drives the support plate 306 to move upward. The support plate 306 pushes the automobile part out of the mold core 7. When the forged automobile part adheres to the forming groove inside the mold core 7, it is convenient to take the automobile part out;

[0033] Core and forming block replacement stage:

[0034] When it is necessary to forge different automobile parts, the slide bar 401 is pulled, and the slide bar 401 drives the slider 402 to slide. The slider 402 compresses the spring 403, and the end of the slide bar 401 is separated from the through hole set in the vertical plate 404. The slide bar 401 no longer positions the vertical plate 404. The mold core 7, the ear plate 405 and the vertical plate 404 are taken out and replaced. The replaced mold core 7 is placed in the interior of the lower mold 5 (the outer dimensions of the mold core 7 are the same, only the internal forming grooves are different), the slide bar 401 is released, and the spring 403 drives the slide bar 402 to slide in the opposite direction under the elastic action of the slide bar 402. The slide bar 402 drives the slide bar 401 to slide in the opposite direction, and the slide bar 401 is inserted into the interior of the vertical plate 404, and the vertical plate 404 is clamped and fixed in the interior of the lower mold 5, completing the replacement of the mold core 7. The forming block 10 is replaced in the same way. The forming block 10 and the mold core 7 can be replaced. There is no need to replace the mold, the workload is small, and it is convenient for forging automobile parts of different models.

[0035] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An improved forging die, comprising a base (1) and a top plate (2), wherein the base (1) is fixedly connected to the top plate (2) via a support, and characterized in that: The upper surface of the base (1) is fixedly connected to a lower mold (5) by bolts, the interior of the lower mold (5) is fixedly connected to a bracket (6), the interior of the bracket (6) is provided with an ejection mechanism (3), the interior of the lower mold (5) is provided with a clamping mechanism (4), the lower mold (5) is clearance-matched with the outer wall of the mold core (7), and the top plate (2) is fixedly connected to the outer wall of the hydraulic cylinder (8).

2. The improved forging die according to claim 1, characterized in that: The ejection mechanism (3) includes a worm (301), the outer walls of both ends of the worm (301) are rotatably connected to the bracket (6) through bearings, the worm (301) is meshed and connected with two worm wheels (302), the worm wheels (302) are fixed to the outer wall of the threaded barrel (303), the outer wall of the threaded barrel (303) is rotatably connected to the bracket (6) through bearings, the internal thread of the threaded barrel (303) is connected to a screw (304), the upper end of the screw (304) is fixed to a vertical rod (305), the outer wall of the vertical rod (305) is slidably connected to the lower mold (5) and the mold core (7), the upper end of the vertical rod (305) is fixed to a support plate (306) through bolts, and the outer wall of the support plate (306) is in contact with the mold core (7).

3. The improved forging die according to claim 1, characterized in that: The clamping mechanism (4) includes a slide bar (401) and a slider (402), the outer walls of the slide bar (401) and the slider (402) are both slidably connected to the lower mold (5), the slider (402) is fixed to the outer wall of the slide bar (401), the outer wall of the slide bar (401) is sleeved with a spring (403), the two ends of the spring (403) are respectively fixedly connected to the lower mold (5) and the slider (402), the outer wall of the slide bar (401) is gap-matched with the through hole set in the vertical plate (404), the upper part of the vertical plate (404) is fixedly connected with an ear plate (405), and the ear plate (405) is fixedly connected to the outer wall of the mold core (7).

4. The improved forging die according to claim 1, characterized in that: The hydraulic rod of the hydraulic cylinder (8) is fixedly connected to the upper mold (9), and the internal gap of the upper mold (9) is matched with a forming block (10).

5. The improved forging die according to claim 4, characterized in that: A second vertical rod (11) is fixedly connected to the upper surface of the upper mold (9), and the outer wall of the second vertical rod (11) is slidably connected to a sleeve (12), and the sleeve (12) is fixedly connected to the lower surface of the top plate (2).

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