Scrap cleaning device of sharpening machine

Abstract

The utility model relates to a scrap cleaning device of a sharpening machine, which is characterized in that the upper end face of a rotary cutter sleeve of the sharpening machine is fixedly connected with a guide convex ring through a fastener, and a plurality of troughs are arrayed on the upper end face of the guide convex ring in the circumferential direction; a guide mechanism is installed on a machine body of the sharpening machine, and the guide mechanism can enable the scrap removing head to be close to or away from a sharpening tool of the sharpening machine. The scrap removing head comprises a connecting shaft, the lower end of the connecting shaft is fixedly connected with an inner ring of a large ball bearing, a plurality of radial shafts fixedly connected with the large ball bearing are arrayed in the circumferential direction of the outer ring of the large ball bearing, and each radial shaft is fixedly connected with an inner ring of a small ball bearing. A disc is fixedly connected to the lower end of the outer ring of the large ball bearing, and a plurality of insertion rods are fixedly arranged on the lower surface of the disc; and when the outer rings of the multiple small ball bearings abut against the multiple wave troughs of the guide convex ring correspondingly, the multiple insertion rods can be inserted into gaps among the multiple sharpening knives. According to the utility model, an efficient, safe and reliable scrap cleaning solution can be provided for a spot welding process in a vehicle body workshop.

Description

Technical Field

[0001] The utility model relates to a chip cleaning device, in particular to an automatic chip cleaning device for an electrode cap grinding machine in a spot welding process in a car body workshop. Background Art

[0002] In the spot welding process of the body shop, the electrode cap needs to be Figure 1 The illustrated grinding machine 100 performs regular grinding to maintain its end face shape. Typically, a single electrode cap is ground an average of 30 times, generating copper chips during grinding. Existing methods for cleaning these chips involve blowing air through a high-pressure air pipe while grinding. However, because copper chips easily stick to the blades, incomplete cleaning often results. These chips often clog the gaps between the three rotating grinding blades 101, potentially filling the entire blade slot. This necessitates stopping the machine for manual chip removal, significantly impacting efficiency.

[0003] Since the three grinding knives 101 rotate during the grinding process, the positions of the gaps between the three grinding knives 101 are also uncertain. Blowing holes through a high-pressure air pipe is acceptable, which makes it difficult to install a conventional automatic chip cleaning device. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a non-stop chip cleaning device for a grinding machine, and the technical solution adopted is:

[0005] A chip cleaning device for a grinding machine, wherein a guide convex ring is fixed to the upper end face of a rotating tool sleeve of the grinding machine by a fastener, and a plurality of troughs are arranged circumferentially on the upper end face of the guide convex ring; a guide mechanism is installed on the body of the grinding machine, and the guide mechanism can make a chip cleaning head approach or move away from the grinding tool of the grinding machine; the chip cleaning head includes a connecting shaft, the lower end of the connecting shaft is fixed to the inner ring of a large ball bearing, the outer ring of the large ball bearing is circumferentially arrayed with a plurality of radial shafts fixed thereto, and each of the radial shafts is fixed to the inner ring of a small ball bearing; the lower end of the outer ring of the large ball bearing is fixed to a disk, and a plurality of insertion rods are fixed to the lower surface of the disk; when the outer rings of the plurality of small ball bearings respectively press into the plurality of troughs of the guide convex ring, the plurality of insertion rods can be inserted into the gaps between the plurality of grinding tools.

[0006] Furthermore, the guiding mechanism includes a bracket fixed on the body of the grinding machine, a swing arm is hinged on the bracket, and the connecting shaft of the chip cleaning head is hinged on a side of the swing arm close to the grinding knife.

[0007] Furthermore, the height of the bracket is configured so that when the outer rings of the multiple small ball bearings of the chip cleaning head respectively press into the multiple troughs of the guide convex ring, the free end of the swing arm is not lower than its hinged end; the length of the swing arm is configured so that when the outer rings of the multiple small ball bearings of the chip cleaning head respectively press into the multiple troughs of the guide convex ring, the connecting shaft is concentric with the guide convex ring.

[0008] Furthermore, a torsion spring is installed on the hinge shaft between the bracket and the swing arm to ensure that the swing arm is reset when no external force is applied.

[0009] Furthermore, the guiding mechanism includes a rotating telescopic cylinder fixed on the body of the grinding machine, the piston rod of the rotating telescopic cylinder is axially vertical and the free end is facing upward, one end of a crossbeam is fixed on the piston rod of the rotating telescopic cylinder, the other end of the crossbeam is fixed to the upper end of an axially vertical connecting rod, and the lower end of the connecting rod is concentrically fixed to the connecting shaft of the chip cleaning head.

[0010] Furthermore, the length of the crossbeam is configured so that after rotating from its initial position through its rotation stroke, the connecting shaft is concentric with the guide convex ring; the length of the connecting rod is configured so that when the rotary telescopic cylinder moves out, the outer rings of the multiple small ball bearings of the chip cleaning head respectively press into the multiple troughs of the guide convex ring, and when the rotary telescopic cylinder moves back, the lower ends of the multiple insertion rods of the chip cleaning head are higher than the upper edge of the guide convex ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Automatic chip cleaning: Through the design of the automatic guide mechanism and chip cleaning head, continuous chip cleaning is achieved during the grinding process without manual intervention, which improves the degree of automation of chip cleaning.

[0013] 2. Improve efficiency: Since the chip cleaning process no longer requires downtime, production interruptions caused by chip cleaning are reduced, thereby improving overall production efficiency.

[0014] 3. Reduce copper chip clogging: The chip cleaning head design can effectively insert into the gap between the grinding knives to clean the chips, reducing the possibility of copper chips clogging the grinding knives.

[0015] 4. Strong adaptability: The design of the guide cam and chip cleaning head enables the device to adapt to the rotation of the grinding tool and the change of the gap position, thus improving the accuracy and reliability of chip cleaning.

[0016] 5. Easy maintenance: The chip cleaning device has a simple structural design and is easy to maintain and replace, reducing maintenance costs.

[0017] 6. Improve welding quality: By removing copper chips in time and keeping the grinding knife clean, it helps to maintain the consistency of the electrode cap end face shape, thereby improving welding quality.

[0018] 7. Operational safety: Automated chip cleaning reduces the risk of operators coming into contact with rotating parts and improves operational safety.

[0019] 8. Extend equipment life: timely removal of copper chips can reduce the wear of the grinding knife and extend the service life of the equipment.

[0020] 9. Environmentally friendly: Automated chip cleaning reduces environmental pollution caused by copper chip splashing and improves the working environment.

[0021] 10. Flexibility: The design of the guide mechanism allows the chip cleaning head to flexibly approach or move away from the grinding tool to adapt to different grinding needs.

[0022] In summary, the chip cleaning device for a grinding machine of the present invention can provide an efficient, safe and reliable chip cleaning solution for the spot welding process in a car body workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attachment Figure 1 It is a structural diagram of an existing grinding machine.

[0024] Attachment Figure 2 It is a structural schematic diagram of the guide convex ring of the utility model.

[0025] Attachment Figure 3 It is a structural schematic diagram of the chip cleaning head of the utility model.

[0026] Attachment Figure 4 It is a structural schematic diagram of the chip cleaning head of the utility model from another perspective.

[0027] Attachment Figure 5 This is a schematic structural diagram of the utility model including the guide mechanism of Example 1 when in standby mode.

[0028] Attachment Figure 6 Machine is Figure 5 A partial enlarged view of point A in the middle.

[0029] Attachment Figure 7 This is a schematic structural diagram of the present invention including the guide mechanism of Example 1 during chip cleaning.

[0030] Attachment Figure 8 It is a structural schematic diagram of the utility model including the guide mechanism of Example 2 when in standby mode.

[0031] Attachment Figure 9 It is a schematic structural diagram of the present invention including the guide mechanism of Example 2 during chip cleaning.

[0032] Attachment Figure 10 Machine is Figure 9 Another perspective. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0036] Example 1, as Figure 1-7The chip cleaning device for a grinding machine shown in the figure has a guide convex ring 200 fixed to the upper end surface of the rotating tool sleeve 102 of the grinding machine 100 by fasteners. The upper end surface of the guide convex ring 200 has three troughs 201 arranged in a circumferential direction. A guide mechanism 400 is installed on the body of the grinding machine 100. The guide mechanism 400 can make a chip cleaning head 300 approach or move away from the grinding tool 101 of the grinding machine 100. The chip cleaning head 300 includes a connecting shaft 301, the lower end of which is fixed to the inner surface of a large ball bearing 302. The outer ring of the large ball bearing 302 is circumferentially arrayed with three radial shafts 303 fixed thereto, each of which is fixed to the inner ring of a small ball bearing 304. The lower end of the outer ring of the large ball bearing 302 is fixed to a circular disk 305, and three insertion rods 306 are fixed to the lower surface of the circular disk 305. When the outer rings of the three small ball bearings 304 respectively press into the three troughs 201 of the guide convex ring 200, the three insertion rods 306 can be inserted into the gaps between the three grinding blades 101. The guide mechanism 400 includes a bracket 401 fixed to the body of the grinding machine 100. A swing arm 402 is hingedly mounted on the bracket 401. The connecting shaft 301 of the chip cleaning head 300 is hingedly mounted on the side of the swing arm 402 near the grinding blade 101.

[0037] When in standby mode Figure 5 As shown, the swing arm 402 is basically in a vertical state, and the chip cleaning head 300 is naturally drooping. When it is necessary to clean the chips without stopping the machine, the welding gun robot carries the welding gun from the left side to the right side of the swing arm 402, and the swing arm 402 swings clockwise, and finally presents the following Figure 7 The height of the bracket 401 is configured so that when the outer rings of the three small ball bearings 304 of the chip cleaning head 300 respectively press into the three troughs 201 of the guide convex ring 200, the free end of the swing arm 402 is not lower than its hinge end; the length of the swing arm 402 is configured so that when the outer rings of the three small ball bearings 304 of the chip cleaning head 300 respectively press into the three troughs 201 of the guide convex ring 200, the connecting shaft 301 is concentric with the guide convex ring 200.

[0038] A torsion spring 403 is installed on the hinge shaft between the bracket 401 and the swing arm 402 to ensure that the swing arm 402 is reset when no external force is applied to the robot.

[0039] In the chip cleaning device of the grinding machine of this utility model, the design of the guide convex ring (guide sleeve) is a key link. Its function and working principle are as follows:

[0040] 1. Rotation of the Guide Ring: The guide ring 200 is fixed to the upper end surface of the rotating blade housing 102 of the grinding machine 100 and rotates synchronously with the grinding blade 101. This design allows the guide ring 200 to follow the rotation of the grinding blade 101, maintaining dynamic coordination.

[0041] 2. Three Insertion Rods in Stationary State: The three insertion rods 306 on the chip cleaning head 300 engage the troughs 201 of the guide collar 200 via small ball bearings 304. As the guide collar 200 rotates, the design of the small ball bearings 304 keeps the three insertion rods 306 stationary relative to the grinding blade 101 of the grinding machine. This stationary state applies relative to the rotating grinding blade 101.

[0042] 3. Chip Cleaning: Copper chips generated during the grinding process accumulate in the gaps between the grinding blades 101. When the chip cleaning head 300 is driven by the guide mechanism 400 toward the grinding blades 101, the three insertion rods 306 are stationary relative to the grinding blades 101, allowing them to effectively penetrate the gaps between the grinding blades 101 and remove the copper chips through a pushing action.

[0043] 4. Chip cleaning effect: Through the above mechanism, the chip cleaning device can effectively remove copper chips from the grinding area while the grinding knife 101 rotates, avoiding the accumulation and blockage of copper chips, thereby ensuring the continuity and quality of the grinding process.

[0044] 5. Reset of the device: After the chip cleaning is completed, the guide mechanism 400 moves the chip cleaning head 300 away, and the chip cleaning head 300 automatically resets to the standby state under the action of the torsion spring 403, preparing for the next chip cleaning action.

[0045] Through this design, the chip cleaning device of the grinding machine of the utility model realizes an automated and efficient chip cleaning process, reduces production interruptions and equipment failures caused by incomplete cleaning of copper chips, and improves production efficiency and welding quality.

[0046] Example 2, as Figure 1-4 , 8-10, the difference from Example 1 lies in the guiding mechanism 400, which includes a rotating telescopic cylinder 404 fixed on the body of the grinding machine 100, the piston rod of the rotating telescopic cylinder 404 is axially vertical, and the free end is facing upward, one end of a crossbeam 405 is fixed on the piston rod of the rotating telescopic cylinder 404, and the other end of the crossbeam 405 is fixed with the upper end of an axially vertical connecting rod 406, and the lower end of the connecting rod 406 is concentrically fixed to the connecting shaft 301 of the chip cleaning head 300.

[0047] The length of the crossbeam 405 is configured so that after rotating from its initial position, the connecting shaft 301 is concentric with the guide convex ring 200; the length of the connecting rod 406 is configured so that when the rotary telescopic cylinder 404 moves out, the outer rings of the three small ball bearings 304 of the chip cleaning head 300 respectively press into the three troughs 201 of the guide convex ring 200, and when the rotary telescopic cylinder 404 moves back, the lower ends of the three insertion rods 306 of the chip cleaning head 300 are higher than the upper edge of the guide convex ring 200.

[0048] In Example 2, the guide mechanism 400 is designed to use a rotating telescopic cylinder 404. Compared with Example 1, this design has the following advantages:

[0049] 1. Precise control: The rotating telescopic cylinder 404 can precisely control the movement of the chip cleaning head 300, including its position close to and away from the grinding knife 101, thereby achieving a more precise chip cleaning action.

[0050] 2. High degree of automation: Using the cylinder as the power source can fully automate the chip cleaning process, reduce or eliminate manual operations, and improve production efficiency.

[0051] 3. Compact structure: The configuration of the rotary telescopic cylinder 404 and the related connecting rod mechanism can be designed to be more compact, saving space, so that the device can be applied to a working environment with limited space.

[0052] 4. Quick response: The cylinder moves quickly and can complete the extension and retraction of the chip cleaning head 300 in a short time, reducing production interruption time during the chip cleaning process.

[0053] 5. High reliability: Cylinders and connecting rod mechanisms generally have high mechanical reliability, simple maintenance and long service life.

[0054] 6. Strong adaptability: By adjusting the stroke of the rotary telescopic cylinder 404 and the length of the crossbeam 405 and the connecting rod 406, it can adapt to different models of grinding machines 100 and different configurations of grinding blades 101.

[0055] 7. Synchronous operation: The movement of the rotating telescopic cylinder 404 can be synchronized with the grinding movement of the grinding machine 100, achieving a more efficient production process.

[0056] 8. Reduce wear: Since the movement of the chip cleaning head 300 is achieved by the extension and contraction of the cylinder, it reduces mechanical wear and extends the service life of the device.

[0057] 9. High safety: Automated operation reduces the risk of operators coming into contact with rotating parts and improves workplace safety.

[0058] 10. Easy to integrate: This cylinder-driven design is easy to integrate with existing automation systems or robotic systems, making it easy to realize intelligent production lines.

[0059] Through these advantages, the chip cleaning device of the grinding machine of Example 2 can provide a more efficient, reliable and automated solution, which meets the requirements of modern industrial production for high efficiency and high reliability.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the field can use the above-disclosed methods and technical contents to make many possible changes or modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification of the above embodiments made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A chip cleaning device for a grinding machine, characterized in that: A guide convex ring (200) is fixed to the upper end surface of the rotating tool sleeve (102) of the grinding machine (100) via a fastener, and the upper end surface of the guide convex ring (200) is circumferentially arrayed with multiple troughs (201); a guide mechanism (400) is installed on the body of the grinding machine (100), and the guide mechanism (400) can make the chip cleaning head (300) approach or move away from the grinding tool (101) of the grinding machine (100); the chip cleaning head (300) includes a connecting shaft (301), the lower end of the connecting shaft (301) is fixed to the inner ring of a large ball bearing (302), and the inner ring of the large ball bearing (302) is fixed to the inner ring of the large ball bearing (302). The outer ring of the large ball bearing (302) is circumferentially arrayed with a plurality of radial shafts (303) fixed thereto, and the inner ring of each of the radial shafts (303) is fixedly connected to the small ball bearing (304); the lower end of the outer ring of the large ball bearing (302) is fixedly connected to a disk (305), and a plurality of insertion rods (306) are fixedly provided on the lower surface of the disk (305); when the outer rings of the plurality of small ball bearings (304) respectively press into the plurality of troughs (201) of the guide convex ring (200), the plurality of insertion rods (306) can be inserted into the gaps between the plurality of grinding knives (101).

2. A chip cleaning device for a grinding machine according to claim 1, characterized in that: The guiding mechanism (400) comprises a bracket (401) fixed on the body of the grinding machine (100), a swing arm (402) hingedly mounted on the bracket (401), and the connecting shaft (301) of the chip cleaning head (300) hingedly mounted on a side of the swing arm (402) close to the grinding knife (101).

3. A chip cleaning device for a grinding machine according to claim 2, characterized in that: The height of the bracket (401) is configured such that when the outer rings of the plurality of small ball bearings (304) of the chip cleaning head (300) respectively press into the plurality of troughs (201) of the guide convex ring (200), the free end of the swing arm (402) is not lower than the hinge end thereof; and the length of the swing arm (402) is configured such that when the outer rings of the plurality of small ball bearings (304) of the chip cleaning head (300) respectively press into the plurality of troughs (201) of the guide convex ring (200), the connecting shaft (301) is concentric with the guide convex ring (200).

4. A chip cleaning device for a grinding machine according to claim 2, characterized in that: A torsion spring (403) is installed on the hinge shaft between the bracket (401) and the swing arm (402) to ensure that the swing arm (402) is reset when no external force is applied.

5. The chip cleaning device for a grinding machine according to claim 1, characterized in that: The guiding mechanism (400) comprises a rotating telescopic cylinder (404) fixed on the body of the grinding machine (100), the piston rod of the rotating telescopic cylinder (404) being axially vertical with the free end facing upward, one end of a crossbeam (405) being fixed on the piston rod of the rotating telescopic cylinder (404), the upper end of an axially vertical connecting rod (406) being fixed on the other end of the crossbeam (405), and the lower end of the connecting rod (406) being coaxially fixed to the connecting shaft (301) of the chip cleaning head (300).

6. A chip cleaning device for a grinding machine according to claim 5, characterized in that: The length of the crossbeam (405) is configured so that after rotating from an initial position to its rotational stroke, the connecting shaft (301) is concentric with the guide convex ring (200); the length of the connecting rod (406) is configured so that when the rotary telescopic cylinder (404) is in an outward stroke, the outer rings of the plurality of small ball bearings (304) of the chip cleaning head (300) respectively press into the plurality of troughs (201) of the guide convex ring (200), and when the rotary telescopic cylinder (404) is in a return stroke, the lower ends of the plurality of insertion rods (306) of the chip cleaning head (300) are higher than the upper edge of the guide convex ring (200).

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