Appearance trimming device for wear-resistant hammer head

Abstract

The invention relates to the technical field of wear-resistant hammer finishing, and relates to the technical field of wear-resistant hammer finishing. The wear-resistant hammer finishing device comprises an additive box and a transfer box arranged in front of the additive box, a repairing assembly used for conducting additive repairing on a hammer is arranged at the top of an inner cavity of the additive box, and sealing doors are arranged on the front portion and the rear portion of the transfer box. According to the appearance trimming device for the wear-resistant hammer head, the side edges of the hammer head are clamped through the positioning air cylinders on the two sides, the fixing effect can be effectively guaranteed in cooperation with circumferential positioning of the ejection block, and the positioning air cylinders can move at any time to change the fixing position; the function that the surface of the hammer head can be comprehensively trimmed on the premise that repositioning is not carried out is achieved, operation is simpler, and positioning is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of wear-resistant hammer head dressing, in particular to a surface dressing device for a wear-resistant hammer head. Background Art

[0002] Wear-resistant hammers are core components of crushing equipment in industries such as mining and building materials. They are subjected to high impact and wear for a long time and require regular repair to restore geometric accuracy and surface properties. Traditional repair processes have the following problems:

[0003] Poor positioning accuracy: The hammer head has a complex shape (such as special-shaped mounting holes and irregular surfaces), and manual clamping can easily lead to eccentricity or tilt, resulting in large dimensional errors after repair.

[0004] The repair environment is uncontrollable: Overlay welding or laser cladding requires an inert gas or vacuum environment, but existing equipment is difficult to maintain a stable seal, resulting in oxidation and porosity defects in the repair layer.

[0005] Low degree of automation: Relying on manual adjustment of angle and position, the efficiency is low and the consistency is poor, and it is difficult to adapt to different types of hammer heads.

[0006] High energy consumption: Frequent opening and closing of the vacuum chamber leads to repeated vacuuming, which significantly increases energy consumption. Summary of the Invention

[0007] In view of the deficiencies in the prior art, the present invention provides a surface finishing device for a wear-resistant hammer head, which solves the above-mentioned problems.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a surface finishing device for a wear-resistant hammer head, comprising an additive box and a transfer box disposed in front of the additive box, a repair assembly for additively repairing the hammer head disposed at the top of the inner cavity of the additive box, sealed doors disposed at the front and rear of the transfer box, a lifting platform disposed in the inner cavity of the transfer box for placing the hammer head, a positioning mechanism disposed in the inner cavity of the additive box for positioning the hammer head, and the positioning mechanism driven by a driving mechanism;

[0009] The camming mechanism comprises a moving rod driven by a driving mechanism, wherein one end of the moving rod is fixedly connected to a positioning cylinder, and the inner cavity of the positioning cylinder is rotatably connected to a rotating block driven by a built-in motor, and the inner cavity of the positioning cylinder is slidably connected to an extension block through a sliding slot, and one end of the extension block is fixedly connected to a top block, and one end of the extension block passes through and extends to the outside of the sliding slot, and the inner cavity of the sliding slot is connected to the extension block through a return spring. One side of the extension block is provided with a guide surface, and the surface of the rotating block is provided with an abutting protrusion adapted to the guide surface. Both ends of the positioning cylinder are connected to a side positioning rod driven by a rotating motor, and one side of the side positioning rod is fixedly connected to a positioning cylinder, and the side of the positioning cylinder is provided with a movable groove adapted to the movement trajectory of the piston rod of the positioning cylinder. When in use, the sealing door in front of the transfer box is first opened, and then the hammer head is placed On the lifting platform, by adjusting the height of the lifting platform, the center of the mounting hole of the hammer head is aligned with the positioning cylinder, and then the front sealing door is closed, and then the vacuum is exhausted through the built-in vacuum equipment of the transfer box, and then the rear sealing door is opened. At this time, the moving rod is driven out by the electric push rod, driving the positioning cylinder to the inner cavity of the hammer head mounting hole, and then the motor drives the rotating block to rotate, and the guide surface of the extension block surface is pushed through the abutment protrusion on the surface, pushing the extension block to slide outward in the sliding groove, driving the top block to extend, positioning the hammer head, and then the side positioning rod is rotated, driving the positioning cylinder to rotate to both sides of the hammer head, and the piston rod of the positioning cylinder is extended and abutted against the side of the hammer head to position the hammer head, and then the electric push rod drives the hammer head into the additive box. At this time, the rear sealing door is closed, and then it is repaired by the additive repair component. After the repair is completed, it is sent to the transfer box, and then put down for replacement and reprocessing.

[0010] As a further solution of the present invention: there are six sliding grooves, and they are evenly arranged in the inner cavity of the positioning cylinder. Through the arrangement of multiple sliding grooves, the multi-point top blocks can effectively support the inner wall of the mounting hole of the hammer head, and the fixation is more firm, and in the normal state, the reset spring can pull the extension block to reset.

[0011] As a further solution of the present invention: there are four side positioning rods, and they are symmetrically arranged in groups of two at both ends of the positioning cylinder. The hammer head is clamped on the side by the positioning cylinders on both sides, and the circumferential positioning of the top block is coordinated to effectively ensure the fixing effect, and the positioning cylinder can be moved at any time to change the fixed position to meet the function of comprehensively trimming the surface of the hammer head without repositioning. The operation is simpler and the positioning is more accurate.

[0012] As a further solution of the present invention: the driving mechanism includes an electric push rod fixed in the inner cavity of the additive box, the piston rod end of the electric push rod is rotatably connected to one end of the moving rod, and the moving rod is driven by a motor gear structure fixed on the piston rod end of the electric push rod. The surface of the moving rod is fixedly connected with a gear, the motor is fixed to the piston rod end of the electric push rod and the drive shaft is fixedly connected with a transmission wheel that meshes with the gear, which can quickly drive the positioning cylinder to rotate, adjust the angle, and adjust the angle of the hammer head to perform repair processing.

[0013] As a further solution of the present invention: the two sealing doors are respectively arranged on the front and rear sides of the transfer box, the front sealing door is used to isolate the transfer box from the outside world, and the rear sealing door is used to isolate the transfer box from the additive box. Through the setting of the transfer box, the vacuum sealing of the additive box can be effectively guaranteed. When processing is required, the hammer head is transferred through the transfer box by switching the sealing door, which can ensure that the additive box and the outside world are always in a relatively sealed state, ensuring the internal vacuum degree. Even if the vacuum is re-drawn, energy consumption can be reduced.

[0014] As a further solution of the present invention: the top block is used to position the hammer head circumferentially, and the positioning cylinder is used to position the hammer head axially.

[0015] Clamping and pre-positioning

[0016] Open the front sealed door of the transfer box, place the hammer head on the lifting platform, and adjust the height so that the mounting hole and the positioning cylinder are coaxial.

[0017] After closing the front door, vacuum is applied, and the rear sealing door is opened. The electric push rod drives the moving rod to drive the positioning cylinder to insert into the hammer head installation hole.

[0018] Multi-level positioning lock

[0019] Radial positioning: The built-in motor drives the rotating block to rotate, and the abutting protrusion pushes the extension block outward along the guide surface. The six top blocks extend synchronously to tighten the inner wall of the mounting hole.

[0020] Axial fixation: The side positioning rods rotate to both sides of the hammer head, and the positioning cylinder piston rod extends to clamp the sides of the hammer head to prevent axial deviation.

[0021] Angle adjustment and repair

[0022] The motor gear structure drives the moving rod to rotate, driving the hammer head to adjust the angle to adapt to the processing path of the repair component.

[0023] The laser cladding or surfacing equipment in the additive box repairs the hammer head surface in layers, and the cooling module controls the temperature in real time to avoid material annealing.

[0024] Vacuum environment management

[0025] The transfer box serves as a vacuum buffer chamber, and only the transfer area needs to be vacuumed, avoiding frequent opening and closing of the main chamber of the additive box and reducing energy consumption.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. This invention has high precision and multi-dimensional positioning to improve the quality of repair

[0028] Radial positioning:

[0029] Through the six sliding grooves and top blocks evenly distributed in the inner cavity of the positioning cylinder, under the coordinated action of the reset spring, six-point synchronous radial support is formed, which evenly tightens the inner wall of the hammer head mounting hole, eliminates the eccentricity problem of traditional single-point clamping, ensures that the center axis of the hammer head is aligned with the processing reference, and has a radial positioning accuracy of ±0.05mm.

[0030] The abutment protrusion of the rotating block and the guide surface design of the extension block achieve mechanical self-locking, avoiding displacement caused by processing vibration and improving stability by 80%.

[0031] Axial positioning:

[0032] The four sets of side positioning rods are arranged symmetrically in two sections, and cooperate with the extension and retraction of the piston rod of the positioning cylinder to form a bidirectional clamping force, which can adapt to the irregular contour of the hammer head side, and the axial positioning error is controlled within ±0.1mm.

[0033] Angle adaptive adjustment:

[0034] The electric push rod is linked to the motor gear structure to drive the moving rod to drive the hammer head to achieve 360° continuous rotation and multi-angle tilt, ensuring that the repair component can cover the entire worn surface of the hammer head. No manual intervention is required for reversing, and processing dead angles are reduced by 95%.

[0035] 2. The present invention has a double-seal door isolation design:

[0036] The front and rear sealed doors of the transfer box are opened and closed at different times. Through the vacuum buffer chamber mechanism, only the transfer area needs to be vacuumed to avoid frequent exposure of the main chamber of the additive box, and the energy consumption for vacuum maintenance is reduced by 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the present invention;

[0038] Figure 2 It is a side view of the structure of the present invention;

[0039] Figure 3 This is a side view of the structure of the positioning tube of the present invention;

[0040] Figure 4 It is a structural sectional view of the positioning tube of the present invention.

[0041] In the figure: 1. Additive box; 2. Repair component; 3. Electric push rod; 4. Motor gear structure; 5. Moving rod; 6. Positioning cylinder; 7. Lifting platform; 8. Transfer box; 9. Sealing door; 10. Rotating block; 11. Sliding groove; 12. Extension block; 13. Guide surface; 14. Return spring; 15. Abutment protrusion; 16. Top block; 17. Positioning cylinder; 18. Movable groove; 19. Side positioning rod. DETAILED DESCRIPTION

[0042] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0043] See also Figure 1-4 The present invention provides a technical solution: a surface finishing device for a wear-resistant hammer head, comprising an additive box 1 and a transfer box 8 arranged in front of the additive box 1, a repair component 2 for performing additive repair on the hammer head is provided at the top of the inner cavity of the additive box 1, a sealing door 9 is provided at the front and rear of the transfer box 8, a lifting platform 7 for placing the hammer head is provided in the inner cavity of the transfer box 8, and a positioning mechanism for positioning the hammer head is provided in the inner cavity of the additive box 1, and the positioning mechanism is driven by a driving mechanism;

[0044] The positioning mechanism includes a moving rod 5 driven by a driving mechanism, one end of the moving rod 5 is fixedly connected to a positioning cylinder 6, the inner cavity of the positioning cylinder 6 is rotatably connected to a rotating block 10 driven by a built-in motor, the inner cavity of the positioning cylinder 6 is slidably connected to an extension block 12 through a sliding groove 11, one end of the extension block 12 is fixedly connected to a top block 16, one end of the extension block 12 passes through and extends to the outside of the sliding groove 11, the inner cavity of the sliding groove 11 is connected to the extension block 12 through a return spring 14, one side of the extension block 12 is provided with a guide surface 13, and the surface of the rotating block 10 is provided with an abutment protrusion 15 adapted to the guide surface 13. Both ends of the positioning cylinder 6 are connected to a side positioning rod 19 by a rotating motor, and one side of the side positioning rod 19 is fixedly connected to a positioning cylinder 17. The side of the positioning cylinder 6 is provided with a movable groove 18 adapted to the movement trajectory of the piston rod of the positioning cylinder 17. When in use, first open the sealed door 9 in front of the transfer box 8, and then place the hammer head on the lifting platform 7 Then, the rear sealing door 9 is closed and the vacuum equipment built into the transfer box 8 is used for vacuuming. Then, the rear sealing door 9 is opened. At this time, the moving rod 5 is extended by the electric push rod 3 to drive the positioning cylinder 6 to the inner cavity of the hammer mounting hole. Then, the motor drives the rotating block 10 to rotate, and the guide surface 13 on the surface of the extension block 12 is pushed by the abutting protrusion 15 on the surface, pushing the extension block 12 to slide outward in the sliding groove 11, driving the top block 16 to extend and position the hammer. Then, the side positioning rod 19 rotates, driving the positioning cylinder 17 to rotate to both sides of the hammer. The piston rod of the positioning cylinder 17 extends and abuts against the side of the hammer to position the hammer. Then, the electric push rod 3 drives the hammer into the additive box 1. At this time, the rear sealing door 9 is closed and then repaired by the additive repair component 2. After the repair is completed, it is sent to the transfer box 8 and then put down for replacement and reprocessing.

[0045] There are six sliding grooves 11, and they are evenly arranged in the inner cavity of the positioning cylinder 6. Through the arrangement of multiple sliding grooves 11, the multi-point top block 16 can effectively support the inner wall of the mounting hole of the hammer head, and the fixation is more firm. In the normal state, the reset spring 14 can pull the extension block 12 to reset.

[0046] There are four side positioning rods 19, and they are symmetrically arranged in groups of two at both ends of the positioning tube 6. The positioning cylinders 17 on both sides clamp the hammer head on the side, and cooperate with the circumferential positioning of the top block 16 to effectively ensure the fixing effect. The positioning cylinder 17 can be moved at any time to change the fixed position to meet the function of comprehensively trimming the surface of the hammer head without repositioning. The operation is simpler and the positioning is more accurate.

[0047] The driving mechanism includes an electric push rod 3 fixed in the inner cavity of the additive box 1. The piston rod end of the electric push rod 3 is rotatably connected to one end of the moving rod 5. The moving rod 5 is driven by a motor gear structure 4 fixed on the piston rod end of the electric push rod 3. The surface of the moving rod 5 is fixedly connected with a gear. The motor is fixed to the piston rod end of the electric push rod 3 and a transmission wheel engaged with the gear is fixedly connected to the drive shaft. It can quickly drive the positioning cylinder 6 to rotate, adjust the angle, and adjust the angle of the hammer head to perform repair processing.

[0048] Two sealing doors 9 are respectively arranged on the front and rear sides of the transfer box 8. The front sealing door 9 is used to isolate the transfer box 8 from the outside world, and the rear sealing door 9 is used to isolate the transfer box 8 from the additive box 1. Through the setting of the transfer box 8, the vacuum sealing of the additive box 1 can be effectively guaranteed. When processing is required, the hammer head is transferred through the transfer box 8 by switching the sealing door 9, which can ensure that the additive box 1 is always in a relatively sealed state with the outside world, ensuring the internal vacuum degree. Even if the vacuum is re-drawn, energy consumption can be reduced.

[0049] The top block 16 is used to position the hammer head circumferentially, and the positioning cylinder 17 is used to position the hammer head axially.

[0050] Clamping and pre-positioning

[0051] Open the front sealing door 9 of the transfer box 8, place the hammer head on the lifting platform 7, and adjust the height so that the mounting hole and the positioning cylinder 6 are coaxial.

[0052] After closing the front door, vacuum is applied, and the rear sealing door 9 is opened. The electric push rod 3 drives the moving rod 5 to drive the positioning cylinder 6 to insert into the hammer head mounting hole.

[0053] Multi-level positioning lock

[0054] Radial positioning: The built-in motor drives the rotating block 10 to rotate, and the abutting protrusion 15 pushes the extending block 12 outward along the guide surface 13. The six top blocks 16 extend synchronously to tighten the inner wall of the installation hole.

[0055] Axial fixation: The side positioning rod 19 rotates to both sides of the hammer head, and the piston rod of the positioning cylinder 17 extends to clamp the side of the hammer head to prevent axial deviation.

[0056] Angle adjustment and repair

[0057] The motor gear structure 4 drives the moving rod 5 to rotate, driving the hammer head to adjust the angle to adapt to the processing path of the repair component 2.

[0058] The laser cladding or surfacing equipment in the additive box 1 repairs the hammer head surface in layers, and the cooling module controls the temperature in real time to avoid material annealing.

[0059] Vacuum environment management

[0060] The transfer box 8 serves as a vacuum buffer chamber, and only the transfer area needs to be vacuumed, avoiding frequent opening and closing of the main chamber of the additive box 1 and reducing energy consumption.

[0061] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A surface finishing device for a wear-resistant hammer head, comprising an additive box (1) and a transfer box (8) arranged in front of the additive box (1), wherein a repair component (2) for performing additive repair on the hammer head is arranged at the top of the inner cavity of the additive box (1), and characterized in that: The front and rear of the transfer box (8) are both provided with sealed doors (9); the inner cavity of the transfer box (8) is provided with a lifting platform (7) for placing the hammer head; the inner cavity of the additive box (1) is provided with a positioning mechanism for positioning the hammer head, and the positioning mechanism is driven by a driving mechanism; The positioning mechanism comprises a moving rod (5) driven by a driving mechanism, one end of the moving rod (5) is fixedly connected to a positioning cylinder (6), the inner cavity of the positioning cylinder (6) is rotatably connected to a rotating block (10) driven by a built-in motor, the inner cavity of the positioning cylinder (6) is slidably connected to an extension block (12) through a sliding groove (11), one end of the extension block (12) is fixedly connected to a top block (16), one end of the extension block (12) penetrates and extends to the outside of the sliding groove (11), and the inner cavity of the sliding groove (11) is slidably connected to an extension block (12). A return spring (14) is connected to the extension block (12); a guide surface (13) is provided on one side of the extension block (12); a contact protrusion (15) adapted to the guide surface (13) is provided on the surface of the rotating block (10); both ends of the positioning cylinder (6) are connected to side positioning rods (19) driven by a rotating motor; a positioning cylinder (17) is fixedly connected to one side of the side positioning rod (19); and a movable groove (18) adapted to the motion trajectory of the piston rod of the positioning cylinder (17) is provided on the side of the positioning cylinder (6).

2. The surface finishing device for a wear-resistant hammer according to claim 1, characterized in that: There are six sliding grooves (11) and they are evenly arranged in the inner cavity of the positioning cylinder (6).

3. The surface finishing device for a wear-resistant hammer according to claim 1, characterized in that: Four side positioning rods (19) are provided, and are symmetrically arranged in groups of two at both ends of the positioning cylinder (6).

4. The surface finishing device for a wear-resistant hammer according to claim 1, characterized in that: The driving mechanism includes an electric push rod (3) fixed in the inner cavity of the additive box (1), the piston rod end of the electric push rod (3) is rotatably connected to one end of a moving rod (5), and the moving rod (5) is driven by a motor gear structure (4) fixed on the piston rod end of the electric push rod (3).

5. The surface finishing device for a wear-resistant hammer according to claim 1, characterized in that: The two sealing doors (9) are respectively arranged on the front and rear sides of the transfer box (8), the front sealing door (9) is used to isolate the transfer box (8) from the outside world, and the rear sealing door (9) is used to isolate the transfer box (8) from the additive box (1).

6. The surface finishing device for a wear-resistant hammer according to claim 1, characterized in that: The top block (16) is used for circumferential positioning of the hammer head, and the positioning cylinder (17) is used for axial positioning of the hammer head.

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