Wear-resistant ball forging device

Abstract

The utility model discloses a wear-resistant ball forging device. The wear-resistant ball forging device comprises a forging base, an upper die holder, a forging press, a first shifting mechanism and a second shifting mechanism, a hemispherical inner cavity is formed below the forging base, a hemispherical inner cavity is formed above the upper die base, the upper portion of the forging base is fixedly connected with the forging and pressing end of a forging press, two sets of shifting teeth used for shifting a ball blank are arranged on the side of the forging base, and the two sets of shifting teeth are perpendicularly distributed. A first shifting mechanism and a second shifting mechanism which are used for driving the two sets of shifting teeth to move in a reciprocating mode are arranged beside the forging base. The device has the beneficial effects that the forming time of forging the ball blank into the wear-resistant ball is shortened, the danger of manually turning the ball blank is avoided, and meanwhile, the application range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of wear-resistant ball manufacturing, in particular to a wear-resistant ball forging device. Background Art

[0002] Wear-resistant balls are widely used in ball mills in metallurgy and mining, cement and building materials, thermal power generation, flue gas desulfurization, magnetic materials, chemicals, water-coal slurry, pelletized ore, slag, ultrafine powder, fly ash, calcium carbonate, quartz sand and other industries to crush the materials in the ball mill by friction and impact.

[0003] Some wear-resistant balls are produced by forging, which has also spawned a lot of inspection equipment for forging wear-resistant balls, such as a forging device for wear-resistant forged steel balls with publication number CN218638476U, which includes a base, a fixed bracket welded on the top surface of the base, and a top plate fixedly installed on the top of the fixed bracket, a support frame detachably installed on the surface of the fixed bracket, and a forging device mechanism is installed on the top surface of the support frame through bolts, and a forging upper die is installed below the forging device mechanism, and the top surface of the base is located directly below the forging upper die and a forging lower die is detachably installed. In the utility model, by arranging a detachable hemispherical plate and arranging the hemispherical plate in the hemispherical groove, it can be ensured that the forging equipment can effectively reduce the impact force generated by the forging hammer on the hemispherical groove during the forging of the metal blank, reduce the wear on the hemispherical groove during the forging process, and is convenient and labor-saving when replaced, and can avoid the influence of the wear of the hemispherical groove on the aesthetics of the forged wear-resistant forged steel ball.

[0004] Because the ball blank of the wear-resistant ball is the raw material of the wear-resistant ball, the hardness of the ball blank is relatively high and cannot be forged in one time, so the ball blank needs to be turned over at this time. The above-mentioned comparative document does not have a mechanism for turning over the ball blank, so the above-mentioned comparative document technology can only rely on workers to use pliers to turn over the ball blank when used, which not only increases the forging time but also poses certain safety hazards to the workers. Utility Model Content

[0005] The utility model aims to provide a wear-resistant ball forging device to solve the technical problem that the ball blank cannot be turned over in the above-mentioned background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A wear-resistant ball forging device comprises a forging base, an upper die base, a forging press, a first toggle mechanism and a second toggle mechanism. A hemispherical inner cavity is provided below the forging base, a hemispherical inner cavity is provided above the upper die base, the upper part of the forging base is fixedly connected to the forging end of the forging press, two groups of teeth for toggling the ball blank are provided on the side of the forging base, the two groups of teeth are vertically distributed, and a first toggle mechanism and a second toggle mechanism for driving the two groups of teeth to reciprocate are provided on the side of the forging base.

[0008] Furthermore, the second toggle mechanism has the same structure as the first toggle mechanism. The first toggle mechanism includes: a bracket, a driven wheel, a centrifugal disk, a connecting rod, a reciprocating conversion mechanism, a shift holding assembly, a toggle assembly, and a toggle tooth; the driven wheel is rotatably engaged with the bracket using a driven shaft, a centrifugal disk is fixed to the other end of the driven shaft, a connecting rod is rotatably engaged on the centrifugal disk, the other end of the connecting rod is connected to a reciprocating conversion mechanism that converts the rotational motion of the centrifugal disk into reciprocating motion, the reciprocating motion end of the reciprocating conversion mechanism is a reciprocating rod of a rod-shaped structure, one end of the reciprocating rod is connected to the toggle assembly through the shift holding assembly, and the toggle tooth is installed on the toggle assembly.

[0009] Furthermore, the reciprocating conversion mechanism includes: a slide seat, a slider, and a reciprocating rod; the slide seat is fixed on the bracket, and a slider is slidably fitted on the slide seat, and the slider can reciprocate horizontally on the slide seat, and the connecting rod and the slider are rotatably fitted with a rotating shaft rod, and the end of the slider away from the connecting rod is connected to a horizontal reciprocating rod.

[0010] Furthermore, the shift holding assembly comprises: a cylinder, a first movable plate, a second movable plate, a spring, and a reserved gap; the cylinder is a horizontal cylindrical mechanism, and two groups of disc structures concentric with the cylinder are provided in the cylinder, which are the first movable plate and the second movable plate respectively; the reciprocating rod penetrates the end of the cylinder and is fixedly connected to the first movable plate, the reciprocating rod and the end of the cylinder are slidably matched, the first movable plate and the second movable plate are fixedly connected by a concentric spring, a toggle rod of a rod-shaped structure is concentrically fixed to the side of the second movable plate away from the spring, the toggle rod penetrates to the outside of the cylinder through the reserved hole at the end of the cylinder, the diameter of the reserved hole is larger than the diameter of the toggle rod, so that a reserved gap is formed between the toggle rod and the reserved hole.

[0011] Furthermore, in order to facilitate the replacement of springs of different hardness according to actual conditions, the cylinder is provided with an opening for accommodating the passage of the spring, and the opening is covered with an upper cover shell of a cover shell structure.

[0012] Furthermore, in order to prevent the reciprocating motion of the first movable plate and the second movable plate from being affected by the "piston effect", the cylinder is provided with a plurality of groups of air leakage holes which are connected to the interior of the cylinder.

[0013] The toggle assembly comprises: a toggle rod, a toggle gear mounting seat and a mounting groove; a toggle gear mounting seat with a vertical plate structure is fixed to one end of the toggle rod away from the second movable plate, the toggle gear mounting seat is provided with a mounting groove, and the toggle gear is clamped and fixed in the mounting groove.

[0014] Furthermore, in order to make the height of the shifting teeth adapt to the shifting operation of wear-resistant ball blanks of different sizes, the number of the mounting grooves is not less than two groups, and they are distributed in a vertical array, and the shifting teeth are clamped and fixed in one group of the mounting grooves.

[0015] Furthermore, in order to enable the driven wheel to obtain rotational power support, a motor is fixed on the bracket, a driving wheel is fixed on the output shaft of the motor, and the driving wheel and the driven wheel are driven by a belt or chain.

[0016] Furthermore, in order to balance the loads at both ends of the centrifugal disc and reduce the shaking of the centrifugal disc due to the imbalance of the center of gravity, the mass of the end of the centrifugal disc close to the connecting rod is greater than the mass of the end of the centrifugal disc close to the driven shaft.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The method accelerates the forming time of forging a ball blank into a wear-resistant ball, and also avoids the danger of manually turning the ball blank: through the establishment of the first toggle mechanism and the second toggle mechanism, the first toggle mechanism and the second toggle mechanism toggle the ball blank when turning the ball blank, the driving motor rotates, drives the driven wheel to rotate, the driven wheel drives the centrifugal disk to rotate through the driven shaft, and then drives the connecting rod on the centrifugal disk to move, the connecting rod drives the slider to reciprocate in the slide seat, so the reciprocating rod connected to the slider will follow the reciprocating motion, the reciprocating rod drives the second movable plate to reciprocate through the first movable plate and the spring, the second movable plate drives the toggle assembly and the shifting teeth to reciprocate as a whole, and then the shifting teeth toggle the ball blank, and then the forming time of forging the ball blank into the wear-resistant ball is accelerated under the cross-toggle of the first toggle mechanism and the second toggle mechanism, and also avoids the danger of manually turning the ball blank.

[0019] ② Wide scope of application: through the establishment of the installation groove, because the size requirements of the wear-resistant balls are different, when forging wear-resistant balls of other sizes, it is necessary to adaptively replace the forging base and the upper die seat, and at the same time adjust the position of the installation groove where the shifting tooth is installed to adapt to wear-resistant balls of other sizes and change the shifting height, so that the utility model can be applied to the forging of wear-resistant balls of different sizes, thereby increasing the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the first toggle mechanism in the utility model;

[0022] Figure 3 It is a schematic diagram of the transmission structure of the first toggle mechanism in the utility model;

[0023] Figure 4 yes Figure 2 A magnified view of the structure in the middle;

[0024] Figure 5 yes Figure 2 A magnified view of the structure at B in the middle;

[0025] Figure 6 It is a structural schematic diagram of the shift holding component in the first toggle mechanism.

[0026] In the figure, 1, forging base; 2, upper die base; 3, forging press; 4, first toggle mechanism; 5, second toggle mechanism; 41, bracket; 42, driven wheel; 43, centrifugal disc; 44, motor; 45, connecting rod; 46, reciprocating conversion mechanism; 47, shift holding assembly; 48, toggle assembly; 49, shifting gear; 421, driven shaft; 461, slide seat; 462, slider; 463, reciprocating rod; 471, cylinder; 472, first movable plate; 473, second movable plate; 474, spring; 475, upper cover shell; 476, vent hole; 477, reserved gap; 481, toggle rod; 482, shifting gear mounting seat; 483, mounting groove; 10, ball blank. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Example:

[0029] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0030] A wear-resistant ball forging device comprises a forging base 1, an upper die base 2, a forging press 3, a first toggle mechanism 4 and a second toggle mechanism 5; a hemispherical inner cavity is provided below the forging base 1, a hemispherical inner cavity is provided above the upper die base 2, the forging base 1 is fixedly connected to the forging end of the forging press 3 above, two groups of toggle teeth 49 for toggling a ball blank 10 are provided on the side of the forging base 1, the two groups of toggle teeth 49 are vertically distributed, and a first toggle mechanism 4 and a second toggle mechanism 5 are provided on the side of the forging base 1 for driving the two groups of toggle teeth 49 to reciprocate respectively.

[0031] The second toggle mechanism 5 has the same structure as the first toggle mechanism 4. The first toggle mechanism 4 includes: a bracket 41, a driven wheel 42, a centrifugal disk 43, a connecting rod 45, a reciprocating conversion mechanism 46, a shift holding assembly 47, a toggle assembly 48, and a shifting tooth 49; the driven wheel 42 is rotatably engaged with the bracket 41 using a driven shaft 421, and a centrifugal disk 43 is fixed to the other end of the driven shaft 421. A connecting rod 45 is rotatably engaged on the centrifugal disk 43, and the other end of the connecting rod 45 is connected to a reciprocating conversion mechanism 46 that converts the rotational motion of the centrifugal disk 43 into reciprocating motion. The reciprocating motion end of the reciprocating conversion mechanism 46 is a reciprocating rod 463 of a rod-shaped structure, one end of the reciprocating rod 463 is connected to the toggle assembly 48 through the shift holding assembly 47, and the shifting tooth 49 is installed on the toggle assembly 48.

[0032] The reciprocating conversion mechanism 46 includes: a slide 461, a slider 462, and a reciprocating rod 463; the slide 461 is fixed on the bracket 41, and a slider 462 is slidably matched on the slide 461. The slider 462 can reciprocate horizontally on the slide 461, and the connecting rod 45 and the slider 462 are rotatably matched with a rotating shaft rod. The end of the slider 462 away from the connecting rod 45 is connected to a reciprocating rod 463 in a horizontal state.

[0033] The shift holding assembly 47 comprises: a cylinder 471, a first movable plate 472, a second movable plate 473, a spring 474, and a reserved gap 477; the cylinder 471 is a horizontal cylindrical mechanism, and two sets of disc structures concentric with the cylinder 471 are arranged in the cylinder 471, which are the first movable plate 472 and the second movable plate 473; the reciprocating rod 463 penetrates the end of the cylinder 471 and is fixedly connected to the first movable plate 472, and the reciprocating rod 463 and the cylinder 4 The ends of the cylinder 471 are slidably matched, and the first movable plate 472 and the second movable plate 473 are fixedly connected by a concentric spring 474. A toggle rod 481 of a rod-shaped structure is concentrically fixed to the side of the second movable plate 473 away from the spring 474. The toggle rod 481 penetrates to the outside of the cylinder 471 through the reserved hole at the end of the cylinder 471. The aperture of the reserved hole is larger than the diameter of the toggle rod 481, so that a reserved gap 477 is formed between the toggle rod 481 and the reserved hole.

[0034] In order to facilitate replacement of springs 474 of different hardness according to actual conditions, the cylinder 471 is provided with an opening for accommodating the passage of the spring 474, and the opening is covered with an upper cover shell 475 of a cover shell structure.

[0035] In order to prevent the reciprocating motion of the first movable plate 472 and the second movable plate 473 from being affected by the “piston effect”, the cylinder 471 is provided with a plurality of groups of air leakage holes 476 that are connected to the interior of the cylinder 471 .

[0036] The toggle assembly 48 includes: a toggle rod 481, a toggle gear mounting seat 482, and a mounting groove 483; a toggle rod 481 is fixed with a toggle gear mounting seat 482 with a vertical plate structure at one end away from the second movable plate 473, and a mounting groove 483 is provided on the toggle gear mounting seat 482, and the toggle gear 49 is clamped and fixed in the mounting groove 483.

[0037] In order to make the height of the shifting teeth 49 adapt to the shifting operation of the wear-resistant ball blanks 10 of different sizes, the number of the mounting grooves 483 is not less than two groups, and they are distributed in a vertical array, and the shifting teeth 49 are snap-fitted and fixed in one group of the mounting grooves 483.

[0038] In order to enable the driven wheel 42 to obtain rotational power support, a motor 44 is fixed on the bracket 41, a driving wheel is fixed on the output shaft of the motor 44, and the driving wheel and the driven wheel are driven by a belt or a chain.

[0039] In order to balance the loads at both ends of the centrifugal disk 43 and reduce the shaking of the centrifugal disk 43 due to the imbalance of the center of gravity, the mass of the end of the centrifugal disk 43 close to the connecting rod 45 is greater than the mass of the end of the centrifugal disk 43 close to the driven shaft 421 .

[0040] During use, a staff member or a manipulator places the red-hot ball blank 10 that needs to be forged in the hemispherical inner cavity of the forging base 1, and drives the forging press 3 to work. The forging end of the forging press 3 drives the upper die seat 2 to reciprocate and forges the ball blank 10 placed in the forging base 1. Because the hemispherical inner cavities in the forging base 1 and the upper die seat 2 are set up, the ball blank 10 will change to a spherical shape under the forging and extrusion of the upper die seat 2. Because the ball blank 10 is the raw material of the wear-resistant ball, the hardness of the ball blank 10 is relatively high and cannot be forged and formed at one time. Therefore, it is necessary to turn the ball blank 10 at this time, and under the forging and extrusion of the upper die seat 2, the wear-resistant ball is gradually formed. When turning the ball blank 10, the first toggle mechanism 4 and the second toggle mechanism 5 toggle the ball blank 10. (Because the first toggle mechanism 4 and the second toggle mechanism 5 have the same structure, only the description is given here. The working principle of the first toggle mechanism 4 and the working principle of the second toggle mechanism 5 are similarly referred to and therefore omitted); the driving motor 44 rotates, driving the driven wheel 42 to rotate, the driven wheel 42 drives the centrifugal disk 43 to rotate through the driven shaft 421, and then drives the connecting rod 45 on the centrifugal disk 43 to move, the connecting rod 45 drives the slider 462 to reciprocate in the slide seat 461, so the reciprocating rod 463 connected to the slider 462 will follow the reciprocating motion, the reciprocating rod 463 drives the second movable plate 473 to reciprocate through the first movable plate 472 and the spring 474 (the hardness of the spring 474 is selected to be relatively large, and when the second movable plate 473 can be pushed by the spring 474, the spring 474 is incompressible or slightly compressed), the second movable plate 473 drives the toggle assembly 48 and the shifting tooth 49 to reciprocate as a whole, and then as shown Figure 5The shown shifting tooth 49 shifts the ball blank 10 (it is worth noting that the speed of the motor 44 should be controlled to ensure that each time the ball blank 10 is shifted, the forging press 3 drives the upper die seat 2 away from the ball blank 10, and the interval of shifting the ball blank 10 is consistent with or an integral multiple of the forging reciprocating interval of the upper die seat 2). Because when the shifting tooth 49 pushes the ball blank 10, the shifting tooth 49 will follow its shifting point to reach above the ball blank 10, so the spring 474 will bend and deform to meet the bending caused by the shifting tooth 49 following the shifting point, and the reserved gap 477 provides a gap for the overall deflection of the shifting assembly 48. After the shifting tooth 49 is shifted and reset, the shifting assembly 48 is reset as a whole under the elastic force of the spring 474 itself, and the next shifting operation is carried out. The cross-shifting of the first shifting mechanism 4 and the second shifting mechanism 5 accelerates the forming time of the ball blank 10 into a wear-resistant ball, and also avoids the danger of manually turning the ball blank. Because the size requirements of the wear-resistant balls are different, when forging wear-resistant balls of other sizes, the forging base 1 and the upper die base 2 need to be adaptively replaced, and the position of the mounting groove 483 where the shifting tooth 49 is installed is adjusted to adapt to wear-resistant balls of other sizes and change the shifting height.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A wear-resistant ball forging device, comprising a forging base (1), an upper die base (2), a forging press (3), a first toggle mechanism (4), and a second toggle mechanism (5); characterized in that: A hemispherical inner cavity is provided below the forging base (1), a hemispherical inner cavity is provided above the upper die base (2), the upper part of the forging base (1) is fixedly connected to the forging end of the forging press (3), two groups of shifting teeth (49) for shifting the ball blank are provided on the side of the forging base (1), the two groups of shifting teeth (49) are vertically distributed, and a first shifting mechanism (4) and a second shifting mechanism (5) are provided on the side of the forging base (1) for respectively driving the two groups of shifting teeth (49) to reciprocate.

2. A wear-resistant ball forging device according to claim 1, characterized in that: The second toggle mechanism (5) and the first toggle mechanism (4) have the same structure. The first toggle mechanism (4) comprises: a bracket (41), a driven wheel (42), a centrifugal disc (43), a connecting rod (45), a reciprocating conversion mechanism (46), a shift holding assembly (47), a toggle assembly (48), and a toggle tooth (49); the driven wheel (42) is rotatably engaged with the bracket (41) by a driven shaft (421), and a centrifugal disc (43) is fixed to the other end of the driven shaft (421). The centrifugal disc (43) is rotatably matched with a connecting rod (45), and the other end of the connecting rod (45) is connected to a reciprocating conversion mechanism (46) for converting the rotational motion of the centrifugal disc (43) into reciprocating motion. The reciprocating motion end of the reciprocating conversion mechanism (46) is a reciprocating rod (463) with a rod-shaped structure. One end of the reciprocating rod (463) is connected to a shift holding component (47) and a toggle component (48), and a toggle tooth (49) is installed on the toggle component (48).

3. A wear-resistant ball forging device according to claim 2, characterized in that: The reciprocating conversion mechanism (46) comprises: a slide seat (461), a slider (462), and a reciprocating rod (463); the slide seat (461) is fixed on the bracket (41); a slider (462) is slidably matched on the slide seat (461); the slider (462) can reciprocate horizontally on the slide seat (461); the connecting rod (45) and the slider (462) are rotatably matched by a rotating shaft rod; and the end of the slider (462) away from the connecting rod (45) is connected to a reciprocating rod (463) in a horizontal state.

4. A wear-resistant ball forging device according to claim 2, characterized in that: The displacement holding assembly (47) comprises: a cylinder (471), a first movable plate (472), a second movable plate (473), a spring (474), and a reserved gap (477); the cylinder (471) is a horizontal cylindrical mechanism, and the cylinder (471) is provided with two groups of disc structures concentric with the cylinder (471), which are the first movable plate (472) and the second movable plate (473); the reciprocating rod (463) penetrates the end of the cylinder (471) and is fixedly connected to the first movable plate (472), and the reciprocating rod (463) and the cylinder are The ends of the cylinder (471) are slidably matched, the first movable plate (472) and the second movable plate (473) are fixedly connected by a concentric spring (474), a toggle rod (481) of a rod-shaped structure is concentrically fixed on one side of the second movable plate (473) away from the spring (474), the toggle rod (481) penetrates through the reserved hole at the end of the cylinder (471) to the outside of the cylinder (471), the aperture of the reserved hole is larger than the diameter of the toggle rod (481), so that a reserved gap (477) is formed between the toggle rod (481) and the reserved hole.

5. A wear-resistant ball forging device according to claim 4, characterized in that: The cylinder (471) is provided with an opening capable of accommodating the passage of the spring (474), and the opening is covered with an upper cover shell (475) having a cover shell structure.

6. A wear-resistant ball forging device according to claim 4, characterized in that: The cylinder (471) is provided with a plurality of groups of air leakage holes (476) which are in communication with the interior of the cylinder (471).

7. A wear-resistant ball forging device according to claim 4, characterized in that: The toggle assembly (48) comprises: a toggle rod (481), a toggle gear mounting seat (482), and a mounting groove (483); a toggle gear mounting seat (482) with a vertical plate structure is fixed to one end of the toggle rod (481) away from the second movable plate (473); the toggle gear mounting seat (482) is provided with a mounting groove (483), and the toggle gear (49) is clamped and fixed in the mounting groove (483).

8. A wear-resistant ball forging device according to claim 7, characterized in that: The number of the installation grooves (483) is not less than two groups, and they are distributed in a vertical array, and the shifting teeth (49) are snap-fitted and fixed in one group of the installation grooves (483).

9. A wear-resistant ball forging device according to claim 2, characterized in that: A motor (44) is fixed on the bracket (41), a driving wheel is fixed on the output shaft of the motor (44), and the driving wheel and the driven wheel are driven by a belt or a chain.

10. A wear-resistant ball forging device according to claim 2, characterized in that: The mass of one end of the centrifugal disc (43) close to the connecting rod (45) is greater than the mass of one end of the centrifugal disc (43) close to the driven shaft (421).

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