Forging device for flange plate

Abstract

The utility model discloses a forging device for a flange plate, which relates to the technical field of forging equipment and comprises an air hammer base, a piston hammer and a supporting seat, a first piston cavity and a second piston cavity are respectively arranged inside the upper side of the air hammer base, and the piston hammer is slidably connected inside the second piston cavity. And the interior of the first piston cavity is slidably connected with a compression piston. According to the forging device for the flange plate, a clamping sleeve and a connecting sleeve are clamped in an annular groove of a piston hammer, when a splash-proof baffle is rotated, clamping balls on the inner wall of the clamping sleeve and the inner wall of the connecting sleeve can extrude tooth blocks, so that the clamping balls extrude springs and contract into notches, and at the moment, the splash-proof baffle can be limited at different angles; when the piston hammer drives the piston hammer block at the bottom to move downwards and hammer a flange plate blank, the splash-proof baffle on the side face of the piston hammer can protect one side of the supporting base, metal scraps splashed during forging can be blocked, and workers are prevented from being scalded and injured by crashing.

Description

Technical Field

[0001] The utility model relates to the technical field of forging equipment, in particular to a forging device for a flange plate. Background Art

[0002] An air hammer is a type of free forging machine. The compression cylinder compresses air, which is sent into the working cylinder through a distribution valve to push the piston together with the hammer head to move up and down for hammering. It is flexible in operation and widely used in the production of medium and small forgings.

[0003] According to the patent number: 201921075438.0, an air hammer for flange plate production is provided. By setting a water tank, a support block is fixedly installed inside the water tank. The support block is fixedly connected to the carrier plate, and the height of the water tank is higher than that of the carrier plate. Thus, the sparks generated during hammering will enter the water tank and be discharged through a drain valve, thereby avoiding the occurrence of danger.

[0004] When the above technical solution is used, by setting a water tank for protection outside the support block, when waste chips fly during forging of workpieces, when the flying waste chips are hammered, the flying of waste chips is generally uncontrollable. And during manual auxiliary operation, this operation of using a water tank to prevent the splashing of cremation cannot effectively protect the safety of personnel. Therefore, the above problems need to be improved. Summary of the Invention

[0005] The purpose of the utility model is to provide a forging device for a flange plate to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A forging device for a flange plate includes an air hammer machine base, a piston hammer, and a support seat.

[0007] Inside the upper side of the air hammer machine base, a first piston chamber and a second piston chamber are respectively opened. A piston hammer is slidably connected inside the second piston chamber, and a compression piston is slidably connected inside the first piston chamber. Two air passages are communicated between the first piston chamber and the second piston chamber. An upper rotary valve and a lower rotary valve are respectively installed in the two air passages. A support seat is fixed on one side of the air hammer machine base close to the piston hammer. The bottom connecting rod of the compression piston is movably connected to a crankshaft, and a pulley is installed at one end of the crankshaft extending through the air hammer machine base.

[0008] Preferably, a forging hammer block is arranged at the bottom of the piston hammer. Two groups of annular grooves are opened on the outer side surface of the piston hammer, and tooth blocks are arranged at equal angles on the inner circumferential surface of the annular grooves.

[0009] Preferably, a bushing is clamped on one side of the annular groove. A connecting sleeve is installed on the opening side of the bushing through a fastening screw. The bushing and the connecting sleeve are assembled into a circular ring structure through the fastening screw.

[0010] Preferably, notches are provided on the inner walls of both the ferrule and the connecting sleeve. Springs are connected inside the notches, and a clamping ball is fixed to one end of each spring.

[0011] Preferably, a bracket is welded to the outer wall of the ferrule. A splash-proof baffle is perpendicularly welded to the end of the bracket away from the ferrule. The splash-proof baffle is in an arc structure, and the position of the bottom edge of the splash-proof baffle is lower than the position of the bottom end of the piston hammer.

[0012] Preferably, a chute is provided at the top of the support base. A threaded rod is inserted through the middle of the support base. The threaded part of the threaded rod is inserted into the chute through a bearing, and the threaded part of the threaded rod is provided with a double-thread.

[0013] Preferably, a threaded sleeve is sleeved outside the threaded part of the threaded rod. A clamping block is fixed to the upper side of the threaded sleeve. A turning handle is slidably inserted through the end of the threaded rod extending out of the support base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the forging device for a flange, by clamping the ferrule and the connecting sleeve in the annular groove of the piston hammer, when the splash-proof baffle is rotated, the clamping balls on the inner walls of the ferrule and the connecting sleeve will be squeezed against the tooth blocks, so that the clamping balls squeeze the springs and retract into the notches. At this time, the splash-proof baffle can be restricted at different angles. When the piston hammer drives the piston hammer block at the bottom to move downward and hammer the flange blank, the splash-proof baffle on the side of the piston hammer can protect one side of the support base, so that the metal waste chips splashed during forging can be blocked, preventing the staff from being scalded and injured.

[0016] 2. For the forging device for a flange, by rotating the turning handle to drive the threaded rod and the threaded sleeve for screw drive, the clamping blocks at the tops of the two threaded sleeves can clamp the central hole of the flange blank when moving away from each other, so as to have a positioning and anti-offset effect on the flange blank during forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a front cross-sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is a top-view structural schematic diagram of the splash-proof baffle of the present utility model;

[0020] Figure 4 is a front cross-sectional structural schematic diagram of the support base of the present utility model.

[0021] In the figure: 1. Air hammer base; 2. First piston chamber; 3. Second piston chamber; 4. Piston hammer; 401. Annular groove; 402. Tooth block; 5. Upper rotary valve; 6. Lower rotary valve; 7. Compression piston; 8. Support base; 801. Slide groove; 802. Threaded rod; 803. Threaded sleeve; 804. Clamping block; 805. Rotating handle; 9. Ferrule; 10. Connecting sleeve; 11. Fastening screw; 12. Notch; 13. Spring; 14. Ball; 15. Bracket; 16. Splash-proof baffle; 17. Crankshaft; 18. Belt pulley. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: a forging device for a flange, including an air hammer base 1, a piston hammer 4 and a support base 8. The inner part of the upper side of the air hammer base 1 is respectively provided with a first piston chamber 2 and a second piston chamber 3. The piston hammer 4 is slidably connected inside the second piston chamber 3, and the compression piston 7 is slidably connected inside the first piston chamber 2. There are two air passages communicating between the first piston chamber 2 and the second piston chamber 3, and an upper rotary valve 5 and a lower rotary valve 6 are respectively installed in the two air passages. A support base 8 is fixed on one side of the air hammer base 1 close to the piston hammer 4. The bottom connecting rod of the compression piston 7 is movably connected to the crankshaft 17, and a belt pulley 18 is installed at one end of the crankshaft 17 passing through and extending out of the air hammer base 1.

[0024] Please refer to Figures 1-3 , a forging hammer block is provided at the bottom of the piston hammer 4. Two groups of annular grooves 401 are provided on the outer side surface of the piston hammer 4. A ferrule 9 is clamped on one side of the annular groove 401. The connecting sleeve 10 is installed on the opening side of the ferrule 9 through the fastening screw 11. The ferrule 9 and the connecting sleeve 10 are assembled into a circular ring structure through the fastening screw 11. By disassembling and assembling the fastening screw 11, the ferrule 9 and the connecting sleeve 10 can be disassembled and assembled;

[0025] Please refer to Figure 2 and Figure 3, the inner circumferential surface of the annular groove 401 is provided with tooth blocks 402 at equal angles. The inner walls of the ferrule 9 and the connecting sleeve 10 are both provided with notches 12. A spring 13 is connected inside the notch 12, and a clamping ball 14 is fixed at one end of the spring 13; a bracket 15 is welded to the outer wall of the ferrule 9, and a splash-proof baffle 16 is perpendicularly welded to the end of the bracket 15 away from the ferrule 9. The splash-proof baffle 16 is in an arc structure, and the position of the bottom edge of the splash-proof baffle 16 is lower than the position of the bottom end of the piston hammer 4.

[0026] During specific implementation, the ferrule 9 and the connecting sleeve 10 are tightened by fastening screws 11, which facilitates the annular clamping of the ferrule 9 and the connecting sleeve 10 in the annular groove 401 of the piston hammer 4, so that the splash-proof baffle 16 can be stably installed. By pulling the splash-proof baffle 16 to rotate around the central axis of the piston hammer 4, the clamping balls 14 on the inner walls of the ferrule 9 and the connecting sleeve 10 are engaged with the tooth blocks 402 on the inner circumferential surface of the annular groove 401, thereby restricting the angle adjustment and limitation of the splash-proof baffle 16 outside the bracket 15;

[0027] When the splash-proof baffle 16 is rotated, the clamping balls 14 on the inner walls of the ferrule 9 and the connecting sleeve 10 will be squeezed by the tooth blocks 402, so that the clamping balls 14 squeeze the spring 13 and contract into the notch 12. At this time, the splash-proof baffle 16 can be restricted at different angles, which is convenient for shielding and protecting different orientations during forging. When the piston hammer 4 drives the piston hammer block at the bottom to move down and hammer the flange blank, the splash-proof baffle 16 on the side of the piston hammer 4 can protect one side of the support seat 8, so that the forging-sprayed metal scraps can be blocked to prevent the staff from being scalded and injured.

[0028] Please refer to Figure 4 , a chute 801 is provided at the top of the support seat 8. A threaded rod 802 is inserted through the middle of the support seat 8. The threaded part of the threaded rod 802 is inserted into the chute 801 through a bearing, and the threaded part of the threaded rod 802 is provided with a double-thread;

[0029] A threaded sleeve 803 is sleeved outside the threaded part of the threaded rod 802. A clamping block 804 is fixed on the upper side of the threaded sleeve 803. One end of the threaded rod 802 extending through the support seat 8 is slidably inserted with a turning handle 805.

[0030] During specific implementation, when forging and processing the blank flange, the central hole of the blank flange is clamped outside the clamping block 804 at the top of the support base 8, and then the threaded rod 802 and the threaded sleeve 803 are driven by rotating the turning handle 805 to perform screw drive, so that the two threaded sleeves 803 can approach or move away from each other along the threaded rod 802. Thus, when the clamping blocks 804 at the tops of the two threaded sleeves 803 move away from each other, they can clamp the central hole of the blank flange, and further have the effect of positioning and preventing deviation during the forging and processing of the blank flange.

[0031] In summary, the reserved holes on both sides of the air hammer base 1 are installed in a limited position at a specified location, and then the belt pulley 18 is connected to a supporting motor by a transmission belt, so that the belt pulley 18 drives the crankshaft 17 to rotate, and the crankshaft 17 drives the compression piston 7 to expand and contract along the first piston chamber 2. By rotating the upper rotary valve 5, the space above the first piston chamber 2 and the second piston chamber 3 of the air hammer base 1 is connected. The compressed gas inside the compression piston 7 enters the top part of the second piston chamber 3 to push the piston hammer 4 downward. By rotating the lower rotary valve 6, the chamber below the piston hammer 4 is connected to the chamber above the compression piston 7, and compressed gas is introduced to make the piston hammer 4 move upward inside the second piston chamber 3, so that the piston hammer 4 moves downward to forge and process the blank flange workpiece placed on the top of the support base 8. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forging device for a flange, comprising an air hammer base (1), a piston hammer (4) and a support base (8), characterized in that: The upper side of the air hammer base (1) is provided with a first piston chamber (2) and a second piston chamber (3), the interior of the second piston chamber (3) is slidably connected to a piston hammer (4), the interior of the first piston chamber (2) is slidably connected to a compression piston (7), two air passages are connected between the first piston chamber (2) and the second piston chamber (3), an upper rotary valve (5) and a lower rotary valve (6) are respectively installed in the two air passages, a support seat (8) is fixed on one side of the air hammer base (1) close to the piston hammer (4), a bottom connecting rod of the compression piston (7) is movably connected to a crankshaft (17), and a belt pulley (18) is installed on one end of the crankshaft (17) extending through the air hammer base (1); The bottom of the piston hammer (4) is provided with a forging hammer block, the outer side of the piston hammer (4) is provided with two groups of annular grooves (401), and the inner circumferential surface of the annular groove (401) is provided with a tooth block (402) at an equal angle; A clamping sleeve (9) is clamped on one side of the annular groove (401), a connecting sleeve (10) is installed on the open side of the clamping sleeve (9) via a fastening screw (11), and the clamping sleeve (9) and the connecting sleeve (10) are assembled into a circular ring structure via the fastening screw (11); The inner wall of the clamping sleeve (9) and the inner wall of the connecting sleeve (10) are both provided with a notch (12), the inside of the notch (12) is connected with a spring (13), and a clamping ball (14) is fixed to one end of the spring (13); A bracket (15) is welded to the outer wall of the ferrule (9), and a splash guard (16) is vertically welded to one end of the bracket (15) away from the ferrule (9). The splash guard (16) is an arc-shaped structure, and the position of the bottom edge of the splash guard (16) is lower than the position of the bottom end of the piston hammer (4).

2. A forging device for a flange according to claim 1, characterized in that: A slide groove (801) is provided at the top of the support seat (8), a threaded rod (802) is inserted through the middle of the support seat (8), the threaded portion of the threaded rod (802) is inserted into the slide groove (801) via a bearing, and the threaded portion of the threaded rod (802) is a bidirectional thread setting.

3. A forging device for a flange according to claim 2, characterized in that: A threaded sleeve (803) is sleeved on the outer side of the threaded portion of the threaded rod (802), a clamping block (804) is fixed on the upper side of the threaded sleeve (803), and a turning handle (805) is slidably inserted into one end of the threaded rod (802) extending through the support seat (8).

Images