Drilling device for excavator bucket tooth seat

Abstract

The utility model relates to a drilling device for a bucket tooth seat of an excavator. Comprising a platen, a rack fixed to the top of the platen, a drilling motor movably connected to the front side of the rack and capable of vertically moving up and down, a chuck fixed to a rotating shaft of the drilling motor, a drill bit detachably and concentrically fixed in the chuck and a lifting air cylinder fixed to the rack and located on one side of the drilling motor. The positioning mechanism is arranged in front of the rack; the positioning mechanism comprises a supporting frame fixed to the top of the platen, a servo gear motor fixed to the inner wall of the top of the supporting frame, a movable ring transversely and rotatably connected to the upper portion of the top of the supporting frame, a fixed disc transversely fixed to the top of the supporting frame and concentrically arranged above the movable ring, and a pushing and pressing air cylinder fixed to the top of the fixed disc. The clamping units are fixed to the top of the movable ring and evenly arranged on the periphery of the fixed disc at equal angles in the circumferential direction; according to the utility model, the time utilization rate is greatly improved, and the processing efficiency is further obviously improved.

Description

Technical Field

[0001] The utility model relates to a drilling device for a bucket tooth seat of an excavator. Background Art

[0002] The bucket tooth of an excavator is an important component of an excavator. It is installed on the blade at the edge of the bucket, similar to human teeth. The bucket tooth is generally composed of a tooth seat and a tooth tip, and the two are detachably connected by a pin shaft. In order to adapt to the pin shaft used for connection, a pin hole for the pin shaft to pass through must be opened on the head of the bucket tooth seat, and the hole is opened with the help of a conventional drilling tool. However, the existing drilling tool is only equipped with a clamp. Before drilling, the operator needs to fix the bucket tooth seat in the clamp, and then wait for the drilling to be completed, and finally take the bucket tooth seat out of the clamp after drilling. The biggest disadvantage of the above method is the low time utilization rate, because during the drilling time of the bucket tooth seat, the operator can only wait and cannot do relevant preparation work, and the next bucket tooth seat to be processed must wait until the previous bucket tooth seat is taken out before it can be put in, so a lot of time is wasted, resulting in low processing efficiency, so it needs further improvement. Utility Model Content

[0003] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a drilling device for an excavator bucket tooth seat which greatly improves time utilization and thus significantly improves processing efficiency.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a drilling device for an excavator bucket tooth seat, comprising a table, a frame fixed on the top of the table, a drilling motor movably connected to the front side of the frame to have a vertical movement function, a chuck fixed on the rotating shaft of the drilling motor, a detachable drill bit concentrically fixed in the chuck, and a lifting cylinder fixed on the frame and located on one side of the drilling motor, the telescopic end of the lifting cylinder is vertically arranged and on the drilling motor, and the rotating shaft of the drilling motor is vertically arranged downward, characterized in that:

[0005] It also includes a positioning mechanism arranged in front of the frame, the positioning mechanism includes a support frame fixed on the top of the table, a servo reduction motor fixed on the inner wall of the top of the support frame, a movable ring connected to the top of the support frame in a transverse and rotatable manner, a fixed plate fixed to the top of the support frame in a transverse manner and concentrically arranged above the movable ring, a pushing cylinder fixed to the top of the fixed plate, and a plurality of positioning units fixed to the top of the movable ring and uniformly arranged on the periphery of the fixed plate at equal angles in the circumferential direction, the rotating shaft of the servo reduction motor vertically passes through the top of the support frame and is concentrically fixed to the movable ring, and the telescopic end of the pushing cylinder is arranged transversely backward;

[0006] The clamping unit includes a base fixed on the moving ring, a clamping block detachably fixed on the top of the base, and a pushing block fixed on the telescopic end of the pushing cylinder, and the top of the base is not lower than the top of the fixed plate;

[0007] A V-shaped clamping groove is also provided on one side of the clamping block close to the pushing cylinder, and a through hole is provided on the top of the base below the V-shaped clamping groove, wherein the inner diameter of the through hole is larger than the outer diameter of the drill bit;

[0008] It also includes a pressing mechanism arranged on the frame, which includes a pressing cylinder fixed to the front side of the frame and located on one side of the drilling motor, and a pressing strip laterally fixed to the telescopic end of the pressing cylinder. The telescopic end of the pressing cylinder is arranged vertically downward, and one end of the pressing strip is arranged in front of the drill bit.

[0009] Preferably, a limiting mechanism is also provided under the moving ring, and the limiting mechanism includes a seat block vertically fixed on the top of the table plate, a limiting cylinder fixed on the seat block, a guide block fixed on the seat block and located above the limiting cylinder, and a limiting column vertically inserted in the guide block, and the telescopic end of the limiting cylinder is vertically arranged upward and fixed to the lower end of the limiting column.

[0010] Preferably, the dynamic ring is further provided with a plurality of limiting holes evenly distributed at equal angles along the circumferential direction, the number of the limiting holes is equal to the number of the positioning units, and the outer diameter of the upper end of the limiting column matches the inner diameter of the limiting hole.

[0011] Preferably, a detachable liquid guiding hopper is also fixed to the front side of the frame, the top opening of the liquid guiding hopper is lower than the bottom of the moving ring, and the front end of the top opening of the liquid guiding hopper extends below the rear edge of the moving ring.

[0012] Preferably, the dynamic ring is further provided with a plurality of liquid outlet holes uniformly distributed at equal angles along the circumferential direction, the number of the liquid outlet holes is equal to the number of the positioning units, and each of the liquid outlet holes is arranged below a corresponding through hole and is interconnected with a corresponding through hole.

[0013] Preferably, a liquid outlet pipe is also inserted into the bottom of the liquid guiding bucket, and the end of the liquid outlet pipe passes through the frame backwards and extends to the rear of the frame.

[0014] Compared with the prior art, the utility model has the advantages that: the utility model can place the next bucket tooth seat to be processed on the base in the positioning unit passing in front of it while the previous bucket tooth seat is drilling, and can also remove the bucket tooth seat that has completed drilling and passed in front of it, thus making full and reasonable use of the time that would otherwise have been needed to wait, thereby greatly improving time utilization, and achieving continuous drilling of each bucket tooth seat at the minimum time interval, thereby saving a lot of time, and thus significantly improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the exploded structure of the utility model from the right front side;

[0016] Figure 2 It is a partial enlarged structural diagram of the utility model at A;

[0017] Figure 3 This is a left front side bottom view of the exploded structure of the utility model;

[0018] Figure 4 It is the left front side structural diagram of the liquid guiding bucket of the utility model. DETAILED DESCRIPTION

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0021] like Figures 1 to 4 As shown, a drilling device for an excavator bucket tooth seat includes a table 1, a frame 2 fixed on the top of the table 1, a drilling motor 3 movably connected to the front side of the frame 2 to have an up and down vertical movement function, a chuck 4 fixed on the rotating shaft of the drilling motor 3, a drill bit 5 detachably fixed concentrically in the chuck 4, and a lifting cylinder 8 fixed on the frame 2 and located on one side of the drilling motor 3, the telescopic end of the lifting cylinder 8 is vertically arranged and on the drilling motor 3, and the rotating shaft of the drilling motor 3 is vertically arranged downward;

[0022] It also includes a positioning mechanism 6 arranged in front of the frame 2, the positioning mechanism 6 includes a support frame 68 fixed on the top of the table 1, a servo reduction motor 61 fixed on the inner wall of the top of the support frame 68, a movable ring 62 connected to the top of the support frame 68 laterally and rotatably, a fixed plate 67 fixed to the top of the support frame 68 laterally and concentrically arranged above the movable ring 62, a pushing cylinder 63 fixed to the top of the fixed plate 67, and a plurality of positioning units fixed to the top of the movable ring 62 and uniformly arranged at the periphery of the fixed plate 67 at equal angles in the circumferential direction, the rotating shaft of the servo reduction motor 61 vertically passes through the top of the support frame 68 and is concentrically fixed to the movable ring 62, and the telescopic end of the pushing cylinder 63 is arranged laterally backward;

[0023] The positioning unit includes a base 64 fixed on the moving ring 62, a block 65 detachably fixed on the top of the base 64, and a push block 66 fixed on the telescopic end of the push cylinder 63. The top of the base 64 is not lower than the top of the fixed plate 67.

[0024] A V-shaped clamping groove 651 is formed on one side of the clamping block 65 close to the pushing cylinder 63, and a through hole 641 is formed on the top of the base 64 below the V-shaped clamping groove 651. The inner diameter of the through hole 641 is larger than the outer diameter of the drill bit 5.

[0025] It also includes a pressing mechanism 7 arranged on the frame 2, which includes a pressing cylinder 71 fixed to the front side of the frame 2 and located on one side of the drilling motor 3, and a pressing strip 72 laterally fixed to the telescopic end of the pressing cylinder 71. The telescopic end of the pressing cylinder 71 is arranged vertically downward, and one end of the pressing strip 72 is arranged in front of the drill bit 5.

[0026] A limiting mechanism 8 is also provided below the moving ring 62, and the limiting mechanism 8 includes a seat block 81 vertically fixed on the top of the table plate 1, a limiting cylinder 82 fixed on the seat block 81, a guide block 83 fixed on the seat block 81 and located above the limiting cylinder 82, and a limiting column 84 vertically inserted in the guide block 83, and the telescopic end of the limiting cylinder 82 is vertically arranged upward and fixed to the lower end of the limiting column 84.

[0027] The dynamic ring 62 is also provided with a plurality of limiting holes 621 evenly distributed at equal angles along the circumferential direction. The number of the limiting holes 621 is equal to the number of the positioning units. The outer diameter of the upper end of the limiting column 84 matches the inner diameter of the limiting hole 621 .

[0028] A detachable liquid guiding hopper 9 is also fixed to the front side of the frame 2 , the top opening of the liquid guiding hopper 9 is lower than the bottom of the moving ring 62 , and the front end of the top opening of the liquid guiding hopper 9 extends below the rear edge of the moving ring 62 .

[0029] The dynamic ring 62 is also provided with a plurality of liquid outlet holes 622 evenly distributed at equal angles along the circumferential direction. The number of the liquid outlet holes 622 is equal to the number of the positioning units. Each liquid outlet hole 622 is arranged below a corresponding through hole 641 and is interconnected with a corresponding through hole 641 .

[0030] A liquid outlet pipe 10 is also inserted into the bottom of the liquid guide bucket 9 , and the end of the liquid outlet pipe 10 passes through the frame 2 backward and extends to the rear of the frame 2 .

[0031] A U-shaped extension portion 91 is formed upward at the rear edge of the top opening of the liquid guiding hopper 9 , and the U-shaped extension portion 91 is detachably fixed to the front side of the frame 2 .

[0032] A detachable cover shell 11 located below the dynamic ring 62 is also fixed to the outside of the support frame 68 .

[0033] Working principle:

[0034] Start the servo reduction motor 61 in the positioning mechanism 6 to rotate its rotating shaft, and then drive the multiple positioning units to rotate clockwise or counterclockwise with the help of the moving ring 62; when each positioning unit moves to the bottom of the drill bit 5, the servo reduction motor 61 will stop rotating, and at this time, there must be a limit hole 621 located just above the limit column 84 in the limit mechanism 8, and then, the telescopic end of the limit cylinder 82 will extend outward to drive the limit column 84 to move upward until the upper end of the limit column 84 is inserted into the limit hole 621 located above it, so that the multiple positioning units will pause for the same period of time during the clockwise or counterclockwise rotation process, during which time the moving ring 62 will not shift under the action of the limit mechanism 8.

[0035] The operator is located in front of the table 1, and uses the time when multiple locking units are paused to place the bucket tooth seat 12 of the excavator horizontally one by one on the top of the base 64 in each locking unit passing in front of him, and make the triangular protrusion 121 located on the head of the bucket tooth seat 12 correspondingly inserted into the V-shaped locking groove 651; when the first locking unit with the bucket tooth seat 12 is moved to the bottom of the drill bit 5, the movable ring 62 will stop rotating and be locked by the limiting mechanism 8.

[0036] After that, the telescopic end of the pushing cylinder 63 is driven to extend outward to drive the push block 66 to move backward, and then after the push block 66 contacts the tail of the bucket tooth seat 12 in a positioning unit located behind it, the bucket tooth seat 12 continues to be pushed backward to move a small distance, until the left and right outer walls of the triangular protrusion 121 located at the head of the bucket tooth seat 12 are respectively attached to the left and right inner walls of the V-shaped positioning groove 651, thereby completing the lateral positioning of the bucket tooth seat 12; then, the telescopic end of the pressing cylinder 71 in the pressing mechanism 7 is driven to extend outward to drive the pressing strip 72 to move downward, until one end of the pressing strip 72 is pressed tightly against the middle upper surface of the bucket tooth seat 12, and the bucket tooth seat 12 is continued to be flattened downward so that its lower surface is attached to the top outer wall of the base 64, thereby completing the longitudinal positioning of the bucket tooth seat 12 and making the bucket tooth seat 12 reach a horizontal state.

[0037] Finally, the telescopic end of the driving lifting cylinder 8 is retracted inward or extended outward to drive the drilling motor 3 to move vertically downward, and the drilling motor 3 is started to rotate its rotating shaft, so that the chuck 4 and the drill bit 5 rotate while moving downward, and when the end of the drill bit 5 contacts the upper surface of the triangular protrusion 121, the operation of punching the triangular protrusion 121 begins. As the drill bit 5 continues to move downward, a mounting hole 122 is finally opened in the triangular protrusion 121; when the end of the drill bit 5 penetrates the triangular protrusion 121, the end of the drill bit 5 will extend into the through hole 641, and will not contact the base 64. To prevent the base 64 from being worn; in addition, in order to reduce the temperature of the drill bit 5 when drilling, the contact part between the drill bit 5 and the triangular protrusion 121 must be continuously sprayed with coolant. After completing the cooling task, the sprayed coolant will flow downward into the through hole 641, and then fall into the interior of the liquid guide bucket 9 through a corresponding liquid outlet hole 622 on the movable ring 62. One end of the hose is sleeved on the end of the liquid outlet pipe 10, and the other end of the hose is connected to the interior of the collecting container. The waste coolant entering the liquid guide bucket 9 will be introduced into the collecting container through the liquid outlet pipe 10 and the hose for recycling.

[0038] The utility model can place the next bucket tooth seat 12 to be processed on the base 64 in the positioning unit passing in front of it while the previous bucket tooth seat 12 is drilling, and can also remove the bucket tooth seat 12 that has completed drilling and passed in front of it, so that the time that originally needs to be waited is fully and reasonably utilized to greatly improve the time utilization rate, and can realize continuous drilling of each bucket tooth seat 12 at the minimum time interval to save a lot of time, thereby significantly improving the processing efficiency.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A drilling device for an excavator bucket tooth seat, comprising a table, a frame fixed on the top of the table, a drilling motor movably connected to the front side of the frame to have a vertical movement function, a chuck fixed on the rotating shaft of the drilling motor, a detachable drill bit concentrically fixed in the chuck, and a lifting cylinder fixed on the frame and located on one side of the drilling motor, the telescopic end of the lifting cylinder is vertically arranged and on the drilling motor, and the rotating shaft of the drilling motor is vertically arranged downward, characterized in that: It also includes a positioning mechanism arranged in front of the frame, the positioning mechanism includes a support frame fixed on the top of the table, a servo reduction motor fixed on the inner wall of the top of the support frame, a movable ring connected to the top of the support frame in a transverse and rotatable manner, a fixed plate fixed to the top of the support frame in a transverse manner and concentrically arranged above the movable ring, a pushing cylinder fixed to the top of the fixed plate, and a plurality of positioning units fixed to the top of the movable ring and uniformly arranged on the periphery of the fixed plate at equal angles in the circumferential direction, the rotating shaft of the servo reduction motor vertically passes through the top of the support frame and is concentrically fixed to the movable ring, and the telescopic end of the pushing cylinder is arranged transversely backward; The clamping unit includes a base fixed on the moving ring, a clamping block detachably fixed on the top of the base, and a pushing block fixed on the telescopic end of the pushing cylinder, and the top of the base is not lower than the top of the fixed plate; A V-shaped clamping groove is also provided on one side of the clamping block close to the pushing cylinder, and a through hole is provided on the top of the base below the V-shaped clamping groove, wherein the inner diameter of the through hole is larger than the outer diameter of the drill bit; It also includes a pressing mechanism arranged on the frame, which includes a pressing cylinder fixed to the front side of the frame and located on one side of the drilling motor, and a pressing strip laterally fixed to the telescopic end of the pressing cylinder. The telescopic end of the pressing cylinder is arranged vertically downward, and one end of the pressing strip is arranged in front of the drill bit.

2. The drilling device for an excavator bucket tooth seat according to claim 1, characterized in that: A limiting mechanism is also provided below the moving ring, and the limiting mechanism includes a seat block vertically fixed on the top of the table plate, a limiting cylinder fixed on the seat block, a guide block fixed on the seat block and located above the limiting cylinder, and a limiting column vertically inserted in the guide block, and the telescopic end of the limiting cylinder is vertically arranged upward and fixed to the lower end of the limiting column.

3. The drilling device for an excavator bucket tooth seat according to claim 2, characterized in that: The dynamic ring is also provided with a plurality of limiting holes evenly distributed at equal angles along the circumferential direction, the number of the limiting holes is equal to the number of the positioning units, and the outer diameter of the upper end of the limiting column matches the inner diameter of the limiting hole.

4. The drilling device for an excavator bucket tooth seat according to claim 1, characterized in that: A detachable liquid guiding hopper is also fixed to the front side of the frame, the top opening of the liquid guiding hopper is lower than the bottom of the moving ring, and the front end of the top opening of the liquid guiding hopper extends below the rear edge of the moving ring.

5. The drilling device for an excavator bucket tooth seat according to claim 1, characterized in that: The dynamic ring is also provided with a plurality of liquid outlet holes uniformly distributed at equal angles along the circumferential direction, the number of the liquid outlet holes is equal to the number of the positioning units, and each of the liquid outlet holes is arranged below a corresponding through hole and is interconnected with a corresponding through hole.

6. The drilling device for an excavator bucket tooth seat according to claim 4, characterized in that: A liquid outlet pipe is also inserted at the bottom of the liquid guiding bucket, and the end of the liquid outlet pipe passes through the frame backwards and extends to the rear of the frame.

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