Ultra-fine grain semi-high speed steel cold roll blank forging device

Abstract

The utility model discloses an ultra-fine grain semi-high speed steel cold roll blank forging device which comprises a forging machine frame, an air cylinder is fixedly installed at the top end of the forging machine frame, a base is integrally and fixedly installed at the bottom of the forging machine frame, anvil blocks are installed in the base at equal intervals in a sliding mode, and a hammer head is installed at the movable end of the air cylinder. An anvil block and a hammer head with specific sizes are selected according to the size of a to-be-machined cold roll, the anvil block slides to the position below the air cylinder along the interior of the base, the position of the anvil block is fixed, then the hammer head and the mounting plate are fixedly mounted, and when a cold roll blank is forged, the end of the cold roll blank is arranged in the shaping hole, so that the end of the cold roll blank is fixed. According to the cold roll forging device, the end size of a cold roll can be accurately forged, the forging efficiency of an ultra-fine grain semi-high-speed steel cold roll blank is improved, when cold rolls of different sizes are forged, proper anvil blocks and hammer heads are replaced, the cold rolls of different sizes can be forged, and the use range of the device is widened.

Description

Technical Field

[0001] This utility model relates to the field of semi-high-speed steel cold rolling roll processing technology, specifically to a forging device for ultra-fine grain semi-high-speed steel cold rolling roll blanks. Background Technology

[0002] Ultrafine-grained semi-high-speed steel cold-rolled roll blanks are a type of roll raw material prepared through a special process. They adopt an ultrafine-grained structure, which improves hardness, wear resistance, and toughness by refining the grains, meeting the rolling requirements of high-strength and high-precision alloy strips. They belong to the category of semi-high-speed steel, combining the advantages of high-speed steel and ordinary carbon steel. They have excellent processing performance and comprehensive mechanical properties. Through advanced processes and material optimization, ultrafine-grained semi-high-speed steel cold-rolled roll blanks have become key load-bearing components of high-end cold rolling equipment, suitable for the rolling requirements of high-precision and high-strength materials.

[0003] In the existing technology, the billet is forged by a forging machine (also known as an air hammer). The hammer head and anvil on the forging machine are generally flat. The forging of the billet is achieved by controlling the rotation of the billet through an external device. The forging effect on cold rolling rolls is relatively low. Utility Model Content

[0004] The purpose of this invention is to provide a forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks, comprising a forging frame, a cylinder fixedly installed at the top of the forging frame, a base integrally fixedly installed at the bottom of the forging frame, an anvil slidably installed at equal intervals inside the base, a hammer head installed at the moving end of the cylinder, the hammer head being detachably fixedly installed at the moving end of the cylinder, the anvil and hammer head being a set or multiple sets, and a shaping hole being opened on the side where the anvil and hammer head are in contact.

[0006] As a further preferred embodiment of this technical solution, the anvil is provided with a first insertion hole at each of its four corners, and the bottom of the base is provided with a second insertion hole at equal intervals corresponding to the position of the first insertion hole. The second insertion hole and the first insertion hole are synchronously slidably inserted with a pin inside.

[0007] As a further preferred embodiment of this technical solution, a sliding hole is provided in the middle of one side of the base, and a positioning rod is slidably installed inside the sliding hole. A positioning hole is provided in the middle of one side of the anvil at the height position corresponding to the positioning rod. The positioning hole is slidably inserted into the positioning rod. A spring is sleeved on the outer side of one end of the positioning rod. One end of the spring is fixedly connected to one side of the base, and the other end of the spring is fixedly connected to the end of the positioning rod.

[0008] As a further preferred embodiment of this technical solution, a connecting plate is fixedly installed at one end of the positioning rod near the spring, and a pull ring is fixedly installed on one side of the connecting plate.

[0009] As a further preferred embodiment of this technical solution, the end of the positioning rod away from the spring is chamfered.

[0010] As a further preferred embodiment of this technical solution, the moving end of the cylinder is fixedly mounted with a mounting plate, and the top four corners of the hammer head are fitted with fixing bolts, which pass through the mounting plate.

[0011] As a further preferred embodiment of this technical solution, limit rods are fixedly installed at the top four corners of the anvil, and limit holes are opened at the bottom four corners of the hammer head, with the limit holes and limit rods slidably inserted into each other.

[0012] This utility model provides a forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks, which has the following beneficial effects:

[0013] (1) This utility model selects an anvil and hammer of a specific size according to the size of the cold rolling roll to be processed, slides the anvil along the inside of the base to the bottom of the cylinder, and fixes the position of the anvil. Then, the hammer is fixedly installed with the mounting plate. When forging the cold rolling roll blank, the end of the cold rolling roll blank is set inside the shaping hole, which can forge the end size of the cold rolling roll more accurately and improve the forging efficiency of the ultrafine crystal semi-high speed steel cold rolling roll blank.

[0014] (2) By replacing the appropriate anvil and hammer, this utility model can forge cold rolling rolls of different sizes, thus improving the application range of this device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0017] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;

[0018] In the diagram: 1. Forging machine frame; 2. Cylinder; 3. Base; 4. Anvil; 5. Hammer head; 6. First insertion hole; 7. Second insertion hole; 8. Pin; 9. Sliding hole; 10. Positioning rod; 11. Positioning hole; 12. Spring; 13. Connecting plate; 14. Pull ring; 15. Chamfer; 16. Mounting plate; 17. Fixing bolt; 18. Limiting rod; 19. Limiting hole; 20. Shaping hole. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figures 1 to 3 As shown in this embodiment, a forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks includes a forging frame 1. A cylinder 2 is fixedly installed at the top of the forging frame 1, and a base 3 is integrally fixedly installed at the bottom of the forging frame 1. Anvils 4 are equidistantly slidably installed inside the base 3. A hammer 5 is installed at the moving end of the cylinder 2. The hammer 5 is detachably fixedly installed at the moving end of the cylinder 2. The anvil 4 and hammer 5 are a set or multiple sets. A shaping hole 20 is opened on the side of the anvil 4 and the hammer 5 that are in contact with each other. The shape is determined according to the size of the cold-rolled roll blank to be processed. Select a specific size anvil 4 and hammer head 5, slide the anvil 4 along the inside of the base 3 to the bottom of the cylinder 2, and fix the position of the anvil 4. Then fix the hammer head 5 to the mounting plate 16. When forging cold rolled roll blanks, set the end of the cold rolled roll blank inside the shaping hole 20. The end size of the cold rolled roll can be forged more accurately, which improves the forging efficiency of ultrafine crystal semi-high speed steel cold rolled roll blanks. When forging cold rolled rolls of different sizes, change the appropriate anvil 4 and hammer head 5 to forge cold rolled rolls of different sizes.

[0021] like Figures 1 to 3 As shown, the four corners of the anvil 4 are provided with first insertion holes 6, and the bottom of the base 3 is provided with second insertion holes 7 at equal intervals corresponding to the positions of the first insertion holes 6. The second insertion holes 7 and the first insertion holes 6 are synchronously slidably connected with pins 8.

[0022] Align the first socket 6 with the second socket 7, and then insert the pin 8 into both the second socket 7 and the first socket 6 simultaneously. The pin 8 is used to position the anvil 4 inside the base 3 to prevent the anvil 4 from moving left or right.

[0023] like Figures 1 to 3 As shown, a sliding hole 9 is provided in the middle of one side of the base 3, and a positioning rod 10 is slidably installed inside the sliding hole 9. A positioning hole 11 is provided in the middle of one side of the anvil 4 at the height position corresponding to the positioning rod 10. The positioning hole 11 is slidably inserted into the positioning rod 10. A spring 12 is sleeved on the outer side of one end of the positioning rod 10. One end of the spring 12 is fixedly connected to one side of the base 3, and the other end of the spring 12 is fixedly connected to the end of the positioning rod 10.

[0024] The spring 12 pulls the end of the positioning rod 10, causing the positioning rod 10 to be inserted into the positioning hole 11. At this time, the bottom of the anvil 4 will stably press against the bottom inner wall of the base 3. The positioning rod 10 positions the height of the anvil 4 to prevent the anvil 4 from vibrating up and down during the forging of the cold rolled billet.

[0025] like Figures 1 to 3 As shown, a connecting plate 13 is fixedly installed at one end of the positioning rod 10 near the spring 12, and a pull ring 14 is fixedly installed on one side of the connecting plate 13.

[0026] Pulling the ring 14 can move the positioning rod 10 and slide the end of the positioning rod 10 out of the positioning hole 11, thereby canceling the positioning of the positioning rod 10 to the height position of the anvil 4.

[0027] like Figures 1 to 3 As shown, the end of the positioning rod 10 away from the spring 12 has a chamfer 15.

[0028] The positioning rod 10 can be squeezed by the chamfer 15 at the end of the positioning rod 10, which is used to control the positioning rod 10 to be inserted horizontally into the positioning hole 11, thereby controlling the bottom of the anvil 4 to be stably pressed against the bottom inner wall of the base 3.

[0029] like Figures 1 to 3 As shown, the moving end of the cylinder 2 is fixedly mounted with a mounting plate 16, and the top four corners of the hammer head 5 are fitted with fixing bolts 17, which pass through the mounting plate 16.

[0030] Pass the fixing bolt 17 at the top of the hammer head 5 through the mounting plate 16, and use the nut of the fixing bolt 17 to fix the hammer head 5 to the mounting plate 16.

[0031] like Figures 1 to 3 As shown, limit rods 18 are fixedly installed at the top four corners of the anvil 4, and limit holes 19 are opened at the bottom four corners of the hammer head 5. The limit holes 19 are slidably inserted into the limit rods 18.

[0032] When placing unused anvils 4 and hammers 5, the limiting holes 19 at the four corners of the bottom of the hammers 5 can be inserted through the limiting rods 18 at the four corners of the top of the anvils 4 for stacking the anvils 4 and hammers 5.

[0033] This utility model provides a forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks, the specific working principle of which is as follows:

[0034] When using the device, select an anvil 4 and hammer 5 of specific dimensions according to the size of the cold rolling roll to be processed. Slide the anvil 4 along the inside of the base 3 to the bottom of the cylinder 2, align the first insertion hole 6 with the second insertion hole 7, and then insert the pin 8 into both the second insertion hole 7 and the first insertion hole 6 simultaneously. The pin 8 positions the anvil 4 inside the base 3 to prevent it from moving left or right. Then, the spring 12 pulls the end of the positioning rod 10, causing the positioning rod 10 to be inserted into the positioning hole 11. At this time, the bottom of the anvil 4 will be stably compressed. The bottom inner wall of the contact base 3 is used to position the height of the anvil 4 by the positioning rod 10 to prevent the anvil 4 from vibrating up and down. Then the hammer head 5 is raised and the fixing bolt 17 on the top of the hammer head 5 is passed through the mounting plate 16. The hammer head 5 is fixed to the mounting plate 16 by the nut of the fixing bolt 17. When forging the cold rolled roll blank, the end of the cold rolled roll blank is set inside the shaping hole 20, which can forge the end size of the cold rolled roll more accurately and improve the forging efficiency of the ultrafine crystal semi-high speed steel cold rolled roll blank.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks, comprising a forging frame (1), wherein a cylinder (2) is fixedly installed at the top of the forging frame (1), characterized in that: The bottom of the forging machine frame (1) is integrally fixedly installed with a base (3). An anvil (4) is equidistantly slidably installed inside the base (3). A hammer (5) is installed on the moving end of the cylinder (2). The hammer (5) is detachably fixedly installed on the moving end of the cylinder (2). The anvil (4) and the hammer (5) are a set and there are multiple sets. A shaping hole (20) is opened on the side where the anvil (4) and the hammer (5) fit together.

2. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 1, characterized in that: The anvil (4) has a first insertion hole (6) at each of its four corners. The bottom of the base (3) has a second insertion hole (7) at equal intervals corresponding to the position of the first insertion hole (6). The second insertion hole (7) and the first insertion hole (6) are simultaneously slidably connected with a pin (8).

3. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 2, characterized in that: A sliding hole (9) is provided in the middle of one side of the base (3), and a positioning rod (10) is slidably installed inside the sliding hole (9). A positioning hole (11) is provided in the middle of one side of the anvil (4) at the height position of the positioning rod (10). The positioning hole (11) is slidably inserted into the positioning rod (10). A spring (12) is sleeved on the outer side of one end of the positioning rod (10). One end of the spring (12) is fixedly connected to one side of the base (3), and the other end of the spring (12) is fixedly connected to the end of the positioning rod (10).

4. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 3, characterized in that: A connecting plate (13) is fixedly installed on one end of the positioning rod (10) near the spring (12), and a pull ring (14) is fixedly installed on one side of the connecting plate (13).

5. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 4, characterized in that: The end of the positioning rod (10) away from the spring (12) has a chamfer (15).

6. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 1, characterized in that: The moving end of the cylinder (2) is fixedly mounted with an mounting plate (16), and the top four corners of the hammer (5) are fitted with fixing bolts (17), which pass through the mounting plate (16).

7. The forging device for ultrafine-grained semi-high-speed steel cold-rolled roll blanks according to claim 1, characterized in that: Limiting rods (18) are fixedly installed at the top four corners of the anvil (4), and limiting holes (19) are opened at the bottom four corners of the hammer (5). The limiting holes (19) are slidably inserted into the limiting rods (18).

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