Hammer anvil structure of air hammer

Abstract

The utility model discloses a hammer anvil structure of an air hammer, which relates to the technical field of air hammers and comprises a hammer anvil support frame, a partition frame is fixedly mounted in the hammer anvil support frame along the vertical direction, and a horizontally arranged bearing frame is fixedly mounted on the top end surface of the hammer anvil support frame; the bottom connecting end of the hammer anvil body is provided with external threads and is in threaded connection with the inner side of the bearing frame; a plurality of limiting grooves are evenly formed in the inner side wall face of the base in the circumferential direction. According to the air hammer anvil, through double fixation of preliminary positioning through threaded connection and insertion locking of the limiting sliding block, the hammer anvil body is prevented from loosening when the air hammer works, meanwhile, the disassembly and assembly convenience is guaranteed, and the air hammer anvil is convenient to disassemble and assemble and high in practicability. The problems that an existing hammer anvil structure and an anvil block are connected only through single threads, vibration generated when an air hammer works is large, threads are loosened, and once the screwing length of the threads is too large, shaking is generated, and danger is caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air hammer technical field, concretely is a hammer anvil structure of air hammer. BACKGROUND

[0002] Air hammer hammer anvil structure is the core load bearing and stress component of forging operation, mainly by anvil seat, anvil pad, upper anvil surface is composed, anvil seat adopts high strength alloy steel or carbon steel forging, is fixed in the machine base, the structure is stable, strong rigidity, anvil pad is elastic material, is clamped between anvil seat and upper anvil surface, plays the role of buffering shock absorption, protects anvil body, upper anvil surface is quenched and treated, wear-resistant impact resistance, directly contacts with forge piece, overall design adapts hammering force transmission, guarantees forging precision and equipment stability, is the key structure of air hammer to realize forging pressure function;

[0003] Like the utility model patent with the announcement number CN222001752U, a kind of hammer anvil structure of metal ingot air hammer, including base, anvil seat, protection cylinder;The anvil seat is installed on base, protection cylinder is sleeved on anvil seat, the protection cylinder bottom is installed on the piston rod of hydraulic cylinder that is evenly arranged on the top of base;The utility model protects the ingot that is forged on anvil seat by the protection cylinder that is sleeved on anvil seat, when ingot flies out from side, is blocked by protection cylinder, to prevent the occurrence of safety accident caused by ingot flying out of anvil seat;

[0004] However, this replaceable hammer anvil and anvil seat only adopt single thread connection, and air hammer generates larger vibration when working, which can cause thread loosening, and once the thread rotation length is too large, it will produce shaking, which is very dangerous, and the interception structure of this hammer anvil structure adopts full-wrapping protection, cannot be flexibly adjusted according to the size of workpiece, and affects the operation personnel to clamp workpiece and turn over, and has larger use limitation. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a hammer anvil structure of air hammer, which solves the technical problems that the existing device and anvil seat only adopt single thread connection, air hammer generates larger vibration when working, which can cause thread loosening, and once the thread rotation length is too large, it will produce shaking, which is very dangerous, and the interception structure of this hammer anvil structure adopts full-wrapping protection, cannot be flexibly adjusted according to the size of workpiece, and affects the operation personnel to clamp workpiece and turn over, and has larger use limitation.

[0006] To achieve the above object, the utility model is realized by the following technical scheme:

[0007] A kind of hammer anvil structure of air hammer, comprising:

[0008] Hammer anvil support frame, its inside is fixedly installed with partition frame along vertical direction, and the top end surface is fixedly installed with the load-bearing frame of horizontal arrangement;

[0009] The hammer anvil body is provided with external threads at the bottom connecting end, and is connected with the inner side of the load bearing frame by threads, and the inner side wall surface is uniformly provided with a plurality of limiting grooves in the circumferential direction;

[0010] The hydraulic telescopic rod is fixedly installed at the center of the upper wall surface of the partition frame, and the piston rod telescopic end is provided with a guide inclination angle;

[0011] The guide sleeve is fixedly installed on the upper wall surface of the cylinder body of the hydraulic telescopic rod, and the inner upper wall surface is fixedly installed with an annular limiting table, and a plurality of tension springs are uniformly fixedly installed in the circumferential direction of the annular limiting table;

[0012] A plurality of limiting sliding blocks are slidingly arranged in the side wall of the guide sleeve in the radial direction, the inner side of the limiting sliding block is fixedly connected with the plurality of tension springs, and the inner side of the limiting sliding block is provided with a sliding inclination angle matched with the guide inclination angle, the sliding inclination angle is slidingly fitted with the guide inclination angle, and the outer side insertion end can be inserted and matched with the plurality of limiting grooves.

[0013] Preferably, the lower wall surface of the hammer anvil support frame is fixedly installed with a driving motor, and the output driving end of the driving motor is fixedly installed with a driving bevel gear; a turntable is rotationally connected below the partition frame in the hammer anvil support frame, and a driven bevel gear meshing with the driving bevel gear is fixedly installed on the lower wall surface of the turntable; a plain bearing is sleeved on the horizontal connection part of the turntable and the hammer anvil support frame, and the rotating part of the plain bearing is fixedly connected with the lower wall surface of the turntable, and the fixed part is fixedly connected with the connection part of the hammer anvil support frame.

[0014] Preferably, the side wall of the hammer anvil support frame is provided with a plurality of adjusting frames capable of sliding in the radial direction through guide holes, and the upper wall surface of the turntable is fixedly installed with an Archimedes spiral guide rail, and the adjusting frame is meshed with the Archimedes spiral guide rail.

[0015] Preferably, the connection end of each of the plurality of adjusting frames is rotationally connected with an intercepting frame, and each of the adjusting frames is provided with an empty slot for matching the rotation of the intercepting frame.

[0016] Preferably, the outer wall surface of the hammer anvil support frame is provided with a plurality of sliding grooves, and each of the sliding grooves is slidingly connected with an auxiliary sliding block, the auxiliary sliding block is fixedly connected with a spring telescopic rod, the telescopic end of the spring telescopic rod is fixedly connected with a hinged seat, and the bottom of the intercepting frame is hinged on the hinged seat.

[0017] Preferably, the side wall surface of the hammer anvil body is provided with a plurality of anti-skid lines.

[0018] Advantages

[0019] The hammer anvil structure of the air hammer has the following advantages:

[0020] The double fixing of the preliminary positioning by the threaded connection and the plug-in locking of the limiting sliding block avoids loosening of the hammer anvil body during the working of the air hammer, while ensuring convenient disassembly and assembly, and solves the problem that the existing hammer anvil structure and anvil seat only adopt single threaded connection, and the vibration during the working of the air hammer is large, which can cause loosening of the thread, and once the threaded length is too large, the hammer anvil body will shake, which is very dangerous.

[0021] The driving motor drives the adjusting frame and the intercepting frame to move, so that the protective ring suitable for different sizes of workpieces is formed, the workpiece is prevented from falling off during machining, and the problem that the existing hammer anvil structure adopts full-wrapping protection, cannot be flexibly adjusted according to the size of the workpiece, and affects the operator to clamp the workpiece to turn over, and has large use limitation is solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the overall structure of the utility model;

[0023] Figure 2 It is a schematic view of the hammer anvil support frame structure of the utility model;

[0024] Figure 3 It is a schematic view of the rotary table structure of the utility model;

[0025] Figure 4 It is a schematic view of the adjusting frame structure of the utility model;

[0026] Figure 5 It is Figure 4 It is a partial enlarged view of A in the middle;

[0027] Figure 6 It is a schematic view of the guide sleeve structure of the utility model;

[0028] Figure 7 It is Figure 6 It is a partial enlarged view of B in the middle.

[0029] In the drawing: 1, hammer anvil support frame; 2, partition frame; 3, bearing frame; 4, hammer anvil body; 5, limiting groove; 6, hydraulic telescopic rod; 7, guide inclination; 8, guide sleeve; 9, annular limiting table; 10, tension spring; 11, limiting sliding block; 12, sliding inclination; 13, driving motor; 14, driving bevel gear; 15, rotary table; 16, driven bevel gear; 17, plane bearing; 18, Archimedes spiral guide rail; 19, adjusting frame; 20, guide hole; 21, intercepting frame; 22, air-avoiding groove; 23, sliding groove; 24, hinged seat; 25, spring telescopic rod; 26, auxiliary sliding block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0031] Referring to Figures 1-7 The anvil structure of the air hammer comprises:

[0032] The anvil support frame 1 is internally fixedly installed with a partition frame 2 in the vertical direction, and a load-bearing frame 3 is fixedly installed on the top end face in a horizontal manner;

[0033] The anvil body 4 is provided with external threads at the bottom connecting end, and is threadedly connected to the inner side of the load-bearing frame 3, and a plurality of limiting grooves 5 are uniformly formed in the inner side wall face in the circumferential direction;

[0034] The hydraulic telescopic rod 6 is fixedly installed at the center of the upper wall face of the partition frame 2 at the cylinder body connecting end, and a guide inclination 7 is formed at the piston rod telescopic end;

[0035] The guide sleeve 8 is fixedly installed at the cylinder upper wall face of the hydraulic telescopic rod 6 at the connecting end, and an annular limiting table 9 is fixedly installed on the inner upper wall face, and a plurality of tension springs 10 are uniformly fixedly installed in the circumferential direction of the annular limiting table 9;

[0036] A plurality of limiting sliding blocks 11 are slidably arranged in the side wall of the guide sleeve 8 in the radial direction, the inner side of the limiting sliding blocks 11 is fixedly connected with the plurality of tension springs 10, and a sliding inclination 12 adapted to the guide inclination 7 is formed at the inner side of the limiting sliding blocks 11, the sliding inclination 12 is slidably fitted with the guide inclination 7, and the outer side insertion end can be inserted and matched with the plurality of limiting grooves 5.

[0037] In use, the anvil support frame 1 provides core support for the overall structure, the partition frame 2 separates the functional areas and fixes the hydraulic telescopic rod 6; the anvil body 4 is preliminarily fixed by threads with the load-bearing frame 3, when the anvil body 4 is fitted on the load-bearing frame 3, the limiting grooves 5 are aligned with the limiting sliding blocks 11, when the hydraulic telescopic rod 6 drives the piston rod to extend or retract, the guide inclination 7 cooperates with the sliding inclination 12 of the limiting sliding blocks 11, and pushes the limiting sliding blocks 11 to extend radially along the guide sleeve 8, and is inserted into the limiting grooves 5 of the anvil body 4, forming double fixation of "thread + insertion", avoiding loosening of the anvil body 4 during work of the air hammer; the tension springs 10 provide a reset tension for the limiting sliding blocks 11, ensuring that the limiting sliding blocks 11 smoothly separate from the limiting grooves 5 when the hydraulic telescopic rod 6 retracts, facilitating disassembly and assembly of the anvil body 4.

[0038] Referring to Figure 1 and Figure 3The lower wall surface in the hammer anvil support frame 1 is fixedly installed with a driving motor 13, and the output driving end of the driving motor 13 is fixedly installed with a driving bevel gear 14; the inner part of the hammer anvil support frame 1 is rotatably connected with a rotating table 15 below the partition frame 2, and the lower wall surface of the rotating table 15 is fixedly installed with a driven bevel gear 16 meshing with the driving bevel gear 14; the horizontal connecting part of the rotating table 15 and the hammer anvil support frame 1 is sleeved with a plane bearing 17, the rotating part of the plane bearing 17 is fixedly connected with the lower wall surface of the rotating table 15, and the fixed part is fixedly connected with the connecting part of the hammer anvil support frame 1.

[0039] In use, the driving motor 13 transmits power to the rotating table 15 through the meshing of the driving bevel gear 14 and the driven bevel gear 16, so as to realize the stable rotation of the rotating table 15; the plane bearing 17 reduces the frictional resistance when the rotating table 15 rotates, simultaneously bears the axial load of the rotating table 15, avoids the deviation of the rotating table 15 due to force, and ensures the accurate action of the subsequent adjusting structure, thereby providing a power basis for workpiece protection adjustment.

[0040] Please refer to Figures 1-3 The side wall of the hammer anvil support frame 1 is provided with a plurality of adjusting frames 19 capable of sliding in the radial direction thereof through guide holes 20, and the upper wall surface of the rotating table 15 is fixedly installed with an Archimedes spiral guide rail 18, and the adjusting frames 19 are meshed with the Archimedes spiral guide rail 18.

[0041] In use, when the rotating table 15 rotates, the Archimedes spiral guide rail 18 drives the adjusting frames 19 to move radially along the guide holes 20 through meshing, the extension length of the adjusting frames 19 can be adjusted according to the size of the workpiece, and the machining requirements of workpieces of different specifications can be adapted; the guide holes 20 limit the movement track of the adjusting frames 19, avoid deviation, and ensure the adjusting accuracy.

[0042] Please refer to Figures 4-5 The connecting end of each adjusting frame 19 is rotatably connected with an intercepting frame 21, and the adjusting frame 19 is provided with an empty slot 22 for cooperating with the rotation of the intercepting frame 21.

[0043] In use, when the workpiece is dropped, it hits the intercepting frame 21, the intercepting frame 21 rotates around the adjusting frame 19, the impact is relieved, the empty slot 22 provides space for the rotation of the intercepting frame 21, prevents the interference between the adjusting frame 19 and the intercepting frame 21, ensures the smooth rotation of the intercepting frame 21, and improves the flexibility of protection.

[0044] Please refer to Figures 1-5 The outer wall surface of the hammer anvil support frame 1 is provided with a plurality of sliding grooves 23, the auxiliary sliding block 26 is slidably connected in the sliding groove 23, the spring telescopic rod 25 is fixedly connected on the auxiliary sliding block 26, the hinge seat 24 is fixedly connected on the extension end of the spring telescopic rod 25, and the bottom of the intercepting frame 21 is hingedly connected on the hinge seat 24.

[0045] In use, the spring telescopic rod 25 slides along the sliding groove 23 through the auxiliary sliding block 26, providing buffering and guiding for the movement of the intercepting frame 21, avoiding violent shaking of the intercepting frame 21 due to impact of workpiece debris; the hinged seat 24 enhances the connection stability of the spring telescopic rod 25 and the intercepting frame 21, ensures uniform transmission of the buffering force, and prolongs the service life of the intercepting frame 21.

[0046] Please refer to Figure 6 The side wall surface of the anvil body 4 is provided with a plurality of anti-skid lines; in use, the anti-skid lines increase the friction between the hands and the anvil body 4, facilitating the rotation of the anvil body 4 by the staff for disassembly, avoiding slipping due to smooth surface or oil stains of the anvil body 4, and improving the convenience and safety of disassembly operation.

[0047] In example 1, the double fixation of preliminary positioning and limiting sliding block 11 insertion locking through threaded connection avoids loosening of the anvil body 4 during operation of the air hammer, while ensuring convenient disassembly.

[0048] Specifically, during installation, hold the anti-skid lines on the side wall of the anvil body 4, align the connection end with external threads at the bottom of the anvil body 4 with the load bearing frame 3 at the top end of the anvil support frame 1, rotate clockwise to achieve threaded connection, until the anvil body 4 is tightly fitted with the load bearing frame 3, at this time the limiting slot 5 is aligned with the limiting sliding block 11; then start the hydraulic telescopic rod 6 on the partition frame 2, its piston rod extends, the guide inclination 7 at the end slides and fits with the sliding inclination 12 inside the limiting sliding block 11, pushes a plurality of limiting sliding blocks 11 to move radially outward along the guide sleeve 8, inserts into the limiting slot 5 in the inner wall of the anvil body 4 after passing through the side wall of the guide sleeve 8, forming "threaded + insertion" double fixation, ensuring that the anvil body 4 does not loosen during impact of the air hammer; during disassembly, retract the piston rod of the hydraulic telescopic rod 6 in reverse, the tension spring 10 on the annular limiting table 9 pulls the limiting sliding block 11 back to its original position, and the limiting sliding block 11 is separated from the limiting slot 5, then rotate the anvil body 4 counterclockwise, it can be easily removed, without additional tools throughout the operation, efficient.

[0049] In example 2, the driving motor 13 drives the adjusting frame 19 and the intercepting frame 21 to move, forming a protective ring that can adapt to different sizes of workpieces, avoiding workpiece falling off during processing.

[0050] Specifically, according to the size of the workpiece to be processed, the driving motor 13 inside the anvil support frame 1 is started, the driving bevel gear 14 at the output end engages the driven bevel gear 16 on the lower wall of the rotary table 15, and the rotary table 15 is driven to rotate smoothly under the assistance of the plain bearing 17; the Archimedes spiral guide rail 18 on the rotary table 15 rotates synchronously, drives the meshing several adjusting frames 19 to move radially along the guide hole 20 of the anvil support frame 1 to adjust the extension length; the adjusting frame 19 drives the connected end of the intercepting frame 21 to move synchronously; at the same time, the hinged seat 24 on the outer wall of the intercepting frame 21 follows the movement through the spring telescopic rod 25, the internal spring expands, and if the workpiece hits the intercepting frame 21 during processing, the intercepting frame 21 can rotate around the adjusting frame 19 (the avoidance slot 22 provides the rotating space), the spring telescopic rod 25 drives the auxiliary sliding block 26 to slide along the sliding groove 23 appropriately, buffers the impact force, avoids the workpiece from splashing, and adapts to the processing protection requirements of workpieces of different specifications.

[0051] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hammer anvil structure of an air hammer, characterized by comprising: Include: Hammer anvil support frame (1), its inside fixedly installed along the vertical direction is divided frame (2), its top end surface is fixedly installed with horizontal setting load bearing frame (3); Hammer anvil body (4), its bottom connection end is provided with external thread, and the inner side of load bearing frame (3) is connected by thread, the inner side wall surface of its is evenly provided with a plurality of limiting grooves (5) along the circumference direction; Hydraulic telescopic rod (6), its cylinder body connection end is fixedly installed at the center of the upper wall surface of the partition frame (2), and the piston rod telescopic end is provided with a guide inclination (7); Guide sleeve (8), its connection end is fixedly installed on the upper wall surface of the cylinder body of hydraulic telescopic rod (6), the inner upper wall surface of its is fixedly installed with annular limiting table (9), the circumference direction of the annular limiting table (9) is evenly fixedly installed with a plurality of tension springs (10); A plurality of limiting sliding blocks (11) are slidably arranged in the side wall of the guide sleeve (8) along the radial direction, the inner side of the limiting sliding block (11) is fixedly connected with the plurality of tension springs (10), and the inner side of the limiting sliding block (11) is provided with a sliding inclination (12) matched with the guide inclination (7), the sliding inclination (12) is slidably connected with the guide inclination (7), and the outer side insertion end can be inserted and matched with the plurality of limiting grooves (5).

2. The anvil structure of an air hammer according to claim 1, wherein The lower wall surface of the hammer anvil support frame (1) is fixedly installed with a driving motor (13), and the output driving end of the driving motor (13) is fixedly installed with a driving bevel gear (14); The hammer anvil support frame (1) is rotatably connected with a rotary table (15) below the partition frame (2), and the lower wall surface of the rotary table (15) is fixedly installed with a driven bevel gear (16) engaged with the driving bevel gear (14), the rotary table (15) is sleeved with a plane bearing (17) at the horizontal connection part of the hammer anvil support frame (1), the rotating part of the plane bearing (17) is fixedly connected with the lower wall surface of the rotary table (15), and the fixed part is fixedly connected with the connection part of the hammer anvil support frame (1).

3. A hammer anvil structure for an air hammer as defined in claim 2 wherein, The side wall of the hammer anvil support frame (1) is provided with a plurality of adjusting frames (19) which can slide along the radial direction thereof through guide holes (20), the upper wall surface of the rotary table (15) is fixedly installed with an Archimedes spiral guide rail (18), and the adjusting frame (19) is engaged with the Archimedes spiral guide rail (18).

4. The anvil structure of an air hammer according to claim 3, wherein The connection end of a plurality of adjusting frames (19) is rotatably connected with an intercepting frame (21), and the adjusting frame (19) is provided with an empty slot (22) for matching the rotation of the intercepting frame (21).

5. The anvil structure of an air hammer as set forth in claim 4, wherein The outer wall surface of the hammer anvil support frame (1) is provided with a plurality of sliding grooves (23), a plurality of auxiliary sliding blocks (26) are slidably connected in the sliding grooves (23), a spring telescopic rod (25) is fixedly connected to the auxiliary sliding block (26), a hinged seat (24) is fixedly connected to the telescopic end of the spring telescopic rod (25), and the bottom of the intercepting frame (21) is hinged to the hinged seat (24).

6. The anvil structure of an air hammer as recited in claim 1, wherein The side wall surface of the hammer anvil body (4) is provided with a plurality of anti-skid lines.

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