Special multi-station drilling machine for cutter shaft pipe barrel
By using a multi-station drilling machine for cutter shaft tubes, and utilizing a rotating structure controlled by clamping columns and servo motors, the efficiency and accuracy problems of traditional drilling systems have been solved, enabling efficient multi-station drilling and high-precision machining of moving cutter shaft tubes.
Patent Information
- Application Number
- CN202520147645.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Traditional drilling systems are inefficient and fail to meet accuracy requirements when machining moving-axis tubes, especially due to cumulative errors during clamping and rotation.
The machine employs a multi-station drilling machine with a cutter shaft and tube. The tube is clamped by the cooperation of the first and second clamping columns and rotated by a servo motor. By combining the servo motor, sleeve, and bearing structure, the machine achieves precise rotation of the tube and multi-station drilling.
It improves drilling efficiency, reduces clamping errors, ensures machining accuracy, and reduces errors by simultaneously machining holes at both ends with dual drilling machines.
Smart Images
Figure CN223733902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of processing device for the cutter shaft of a harvester shredder, specifically to a special machine for multi-station drilling of the cutter shaft tube. Background Technology
[0002] The moving cutter shaft is a key component of the harvester's shredder. The central part of the moving cutter shaft is a tubular structure with moving blades mounted on it. When the moving cutter shaft rotates, these blades shred plant waste such as straw. The tubular structure of the moving cutter shaft requires drilling. For the GR moving cutter shaft, the drilling positions are located around one end of the tubular structure, one hole every 90°, requiring precise positioning. For the GM moving cutter shaft, drilling is required at both ends.
[0003] Traditional drilling systems typically use a clamping device to hold and fix the tube during drilling operations. This device consists of a series of clamping and positioning fixtures. After fixing, the tube is located in the working area of the drilling machine, which then drills holes in the tube. Each time the tube is clamped, a series of positioning operations are required, resulting in a large workload and low processing efficiency. Furthermore, since the tube needs to be rotated after each hole is machined, it must be loosened and re-clamped, leading to cumulative errors and making it difficult to meet the machining accuracy requirements of GM and GR shredder shaft tubes. Utility Model Content
[0004] The technical problem to be solved by this utility model is: how to improve the drilling efficiency of the moving cutter shaft tube while improving the machining accuracy.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0006] This utility model provides a multi-station drilling machine for cutter shafts and tubes, including a first frame, a second frame, and a drilling rig. The first frame is provided with a first clamping column and a first telescopic rod, and the second frame is provided with a second clamping column and a second telescopic rod. The first clamping column and the second clamping column are coaxial and arranged opposite to each other, and can slide along the axial direction and rotate around their own axis, respectively. One end of the first telescopic rod is connected to one end of the first clamping column, and one end of the second telescopic rod is connected to one end of the second clamping column. The drill bit of the drilling rig is located between the first clamping column and the second clamping column.
[0007] The beneficial effects of this utility model are:
[0008] By employing this utility model, the first and second telescopic rods work together to drive the clamping columns to clamp or loosen the tube along the axial direction, reducing workload and making operation convenient. After clamping, the first and second clamping columns can rotate with the tube, allowing the drilling machine to drill holes around the tube. Drilling holes at all positions on the tube can be completed in one clamping operation, improving work efficiency. It also avoids the cumulative errors caused by re-clamping, thus improving processing accuracy.
[0009] On the basis of the above technical solutions, the utility model further can make improvement as follows.
[0010] Further, the second bracket is further provided with a servo motor, and an output shaft of the servo motor is in transmission connection with the second clamping column.
[0011] The servo motor can control the number of rotations each time, thereby driving the second clamping column to rotate by a fixed angle, facilitating accurate control of the rotation angle of the pipe cylinder each time and improving the machining precision.
[0012] Further, the second bracket is further provided with a sleeve in rotation connection, the output shaft of the servo motor is in connection with the sleeve through belt transmission or chain transmission, and the second clamping column is in sliding connection with the inner wall of the sleeve and can slide along the axial direction of the second clamping column.
[0013] The sleeve is driven to rotate by the servo motor, and the sleeve drives the second clamping column to rotate, avoiding the influence of the axial sliding of the second clamping column on the transmission, and simultaneously reducing the rotation resistance of the second clamping column.
[0014] Further, the outer side of the second clamping column is provided with a sliding groove extending along the axial direction of the second clamping column, the inner wall of the sleeve is provided with a limiting protrusion, and the limiting protrusion extends into the sliding groove.
[0015] The sleeve is constrained from rotating relative to the second clamping column, the sleeve can ensure that the output motion of the servo motor is completely transmitted to the second clamping column, the rotation angle of the second clamping column can be accurately controlled, and the machining precision is improved.
[0016] Further, the second bracket is further provided with a ring-shaped bearing, and the ring-shaped bearing is sleeved on the sleeve.
[0017] The rotation resistance of the sleeve is greatly reduced, and wear is avoided.
[0018] Further, the first clamping column and the first telescopic rod are connected through a bearing disc, and the second clamping column and the second telescopic rod are connected through a bearing disc.
[0019] Through the bearing disc, the friction between the clamping column and the telescopic rod is greatly reduced, the rotation of the clamping column is not affected by the telescopic rod, the clamping column can synchronously follow the rotation of the pipe cylinder, the rotation angle of the pipe cylinder can be accurately controlled, the driving force is small, and the operation is convenient.
[0020] Further, the first bracket is further provided with a guide pipe, and the guide pipe is sleeved on the first clamping column.
[0021] The rotation resistance of the first clamping column is reduced, the first clamping column can synchronously follow the rotation of the pipe cylinder, and the rotation angle of the pipe cylinder can be accurately controlled.
[0022] Further, the drilling machine is provided with two, one of which is fixed on the first rack, and the other is fixed on the second rack.
[0023] Through the two drilling machines, the drilling holes at both ends of the pipe barrel can be machined simultaneously, the drilling holes at both ends of the pipe barrel have the same longitude, good consistency and reduced error.
[0024] Further, the first clamping column and the second clamping column are further provided with a feeding platform, the feeding platform is located directly below the axis of the first clamping column, and a feeding telescopic rod is arranged below the feeding platform.
[0025] Before drilling, the pipe barrel is placed on the feeding platform, the feeding platform is lifted through the feeding telescopic rod, and the pipe barrel can be sent to the coaxial position between the first clamping column and the second clamping column, so that clamping is convenient and the processing efficiency is improved.
[0026] Further, a feeding groove is further arranged in the middle of the feeding platform and located directly below the axis of the first clamping column, and a feeding slide rail is further arranged on one side of the feeding platform and connected with the lower end of the feeding slide rail.
[0027] During feeding, the pipe barrel is placed on the feeding slide rail and can be automatically rolled into the feeding groove, and the feeding platform can send the pipe barrel to the coaxial position between the first clamping column and the second clamping column; the safety is improved, and the processing precision is high. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is a structural schematic view of the utility model.
[0029] Figure 2 It is Figure 1 A-A view.
[0030] In the drawings, the technical features represented by the reference signs are as follows:
[0031] 1-First rack; 2-Second rack; 3-First clamping column; 4-Second clamping column; 5-First telescopic rod; 6-Second telescopic rod; 7-Drilling machine; 8-Servo motor; 9-Sleeve; 10-Ring-shaped bearing; 11-Sliding groove; 12-Bearing disc; 13-Guide pipe; 14-Feeding platform; 15-Feeding telescopic rod; 16-Feeding groove; 17-Feeding slide rail. DETAILED DESCRIPTION
[0032] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.
[0033] The utility model refers to Figures 1-2 .
[0034] The utility model provides a kind of knife shaft pipe cylinder multi-station drilling special machine, including first rack 1, second rack 2, drilling machine 7, the first rack 1 is equipped with first clamping column 3 and first telescopic link 5, the second rack 2 is equipped with second clamping column 4 and second telescopic link 6, the first clamping column 3 with second clamping column 4 coaxial and opposite arrangement, and can respectively along axial sliding and rotate around its own axis;The one end of first telescopic link 5 is connected with the one end of first clamping column 3, and the one end of second telescopic link 6 is connected with the one end of second clamping column 4;The drill bit of drilling machine 7 is located between first clamping column 3 and second clamping column 4.
[0035] Principle:
[0036] When knife shaft pipe cylinder is drilled, first, pipe cylinder is moved to between first clamping column 3 and second clamping column 4, then first telescopic link 5 and second telescopic link 6 are elongated, first clamping column 3 and second clamping column 4 are pushed to each other, so as to be clamped in pipe cylinder both ends, complete clamping;First telescopic link 5 and second telescopic link 6 can adopt hydraulic cylinder or air cylinder, and the clamping force is controlled by the pressure of hydraulic pressure or air pressure, to ensure the stability of pipe cylinder after clamping. After clamping, drilling machine 7 works, after drilling a hole on pipe cylinder, pipe cylinder is rotated by 90 °, and the next hole is drilled, until the drilling of pipe cylinder around is completed. In addition, drilling machine 7 can adopt existing machine tool structure such as radial drilling machine, so the drill bit of drilling machine 7 can move along the axial direction of pipe cylinder, and can complete the drilling of all positions on pipe cylinder. After drilling is completed, first telescopic link 5 and second telescopic link 6 are shortened, so that pipe cylinder can be released, and the processed pipe cylinder can be taken out conveniently.
[0037] By the cooperation of first telescopic link 5 and second telescopic link 6, the utility model can drive clamping column to clamp or release pipe cylinder along axial direction, with small workload and convenient operation. After clamping, first clamping column 3 and second clamping column 4 can rotate with pipe cylinder, so that drilling machine 7 can drill holes around pipe cylinder, and all positions on pipe cylinder can be drilled by one clamping, improving work efficiency. Accumulative error caused by re-clamping is avoided, and processing precision is improved.
[0038] Further, the second rack 2 is also provided with a servo motor 8, and the output shaft of the servo motor 8 is in transmission connection with the second clamping column 4.
[0039] The servo motor 8 can control the output number of revolutions each time, so as to drive the second clamping column 4 to rotate by a fixed angle, which is convenient for accurately controlling the rotation angle of pipe cylinder each time, and improves the processing precision.
[0040] Further, the second rack 2 is rotatably connected with a sleeve 9, the output shaft of the servo motor 8 is in transmission connection with the sleeve 9 through belt transmission or chain transmission, and the second clamping column 4 is in sliding connection with the inner wall of the sleeve 9 and can slide along the axial direction of itself.
[0041] The sleeve 9 is driven to rotate by the servo motor 8, the sleeve 9 drives the second clamping column 4 to rotate, which avoids the influence of the axial sliding of the second clamping column 4 on the transmission, and reduces the rotating resistance of the second clamping column 4.
[0042] Further, the outer side of the second clamping column 4 is provided with a sliding groove 11 extending along the axial direction of the second clamping column 4, and the inner wall of the sleeve 9 is provided with a limiting protrusion extending into the sliding groove 11.
[0043] The rotation of the sleeve 9 relative to the second clamping column 4 is conveniently constrained, the output motion of the servo motor 8 can be fully transmitted to the second clamping column 4 by the sleeve 9, the rotating angle of the second clamping column 4 is conveniently controlled, and the machining precision is improved.
[0044] Further, the second bracket 2 is further provided with a ring-shaped bearing 10, and the ring-shaped bearing 10 is sleeved on the sleeve 9.
[0045] The rotating resistance of the sleeve 9 is greatly reduced, and wear is avoided.
[0046] Further, the first clamping column 3 and the first telescopic rod 5 are connected through a bearing disc 12, and the second clamping column 4 and the second telescopic rod 6 are connected through the bearing disc 12.
[0047] By the bearing disc 12, the friction between the clamping column and the telescopic rod is greatly reduced, the rotation of the clamping column is not affected by the telescopic rod, the clamping column can synchronously follow the rotation of the pipe barrel, the rotating angle of the pipe barrel is conveniently controlled, the driving force is small, and the operation is convenient.
[0048] Further, the first bracket 1 is further provided with a guide pipe 13, and the guide pipe 13 is sleeved on the first clamping column 3.
[0049] The rotating resistance of the first clamping column 3 is reduced, and the first clamping column 3 can synchronously follow the rotation of the pipe barrel, and the rotating angle of the pipe barrel is conveniently controlled.
[0050] Further, the drill 7 is provided with two, one of which is fixed to the first bracket 1, and the other is fixed to the second bracket 2.
[0051] By the two drills 7, the drill holes at both ends of the pipe barrel can be machined at the same time, the drill holes at both ends of the pipe barrel have the same longitude and good consistency, and the error is reduced.
[0052] Further, the first clamping column 3 and the second clamping column 4 are further provided with a feeding platform 14, the feeding platform 14 is located directly below the axis of the first clamping column 3, and a feeding telescopic rod 15 is arranged below the feeding platform 14.
[0053] Before drilling, the pipe cylinder is placed on the feeding platform 14, the feeding platform 14 is lifted by the feeding telescopic rod 15, and the pipe cylinder can be sent to the coaxial position between the first clamping column 3 and the second clamping column 4, so that the pipe cylinder is conveniently clamped, and the processing efficiency is improved.
[0054] Further, the middle part of the feeding platform 14 is also provided with a feeding groove 16, and the feeding groove 16 is located directly below the axis of the first clamping column 3.
[0055] When feeding, the pipe cylinder is placed on the feeding slide rail 17, and the pipe cylinder can be automatically rolled to the feeding groove 16, and the feeding platform 14 can send the pipe cylinder to the coaxial position between the first clamping column 3 and the second clamping column 4.
[0056] In the description of the utility model, it is understood that if the description of the direction, direction or position relationship appears, for example: "center", "vertical", "horizontal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The direction or position relationship indicated in the specification is based on the direction or position relationship shown in the drawing, and is only for the convenience of understanding the utility model and simplifying the description, and does not indicate or imply that the indicated part, element or whole must have a specific direction, structure and operation, therefore, it cannot be understood as a limitation of the utility model.
[0057] In addition, if the order description language appears, for example: "first", "second", etc. In the specification, it is used for the convenience of understanding or simplifying the description, for example, in order to distinguish a plurality of technical features with the same type or function, and it is necessary to mention separately, the specification may adopt the way of prefix or suffix order description language to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc. Unless otherwise specified.
[0058] In the utility model, if the structure relative action relation description language is used, for example: "installation", "connection", "connection", "fixing" and the like, unless there is definite stipulation and limitation, otherwise should do the broad sense understanding. For example, "installation", "connection", "connection" and the like, can be fixed connection, also can be detachable connection, or integrated; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements or the interaction of two elements; "fixing" can be integrated fixing, also can be detachable fixing through fastener; can be direct fixing, also can be fixed through intermediate medium. For the ordinary skilled in the art, the specific meaning of the above description language in the utility model can be understood according to specific circumstances, the context, the text meaning coherence of preceding and following text and the like.
[0059] In the utility model, if the description language containing accessory or connection meaning appears, for example, the first feature is "on" or "under" the second feature, unless there is definite stipulation and limitation, otherwise should not be limitedly understood, for example, "on" or "under" can be that the first and second features directly contact, also can be that the first feature and the second feature indirectly contact through intermediate medium. For the ordinary skilled in the art, the specific meaning of the above description language in the utility model can be understood according to specific circumstances, the context, the text meaning coherence of preceding and following text and the like.
[0060] Further, the first feature is "on", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0061] In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments, examples and features of different embodiments, examples described in the specification without contradicting each other, which should be included in the range of the utility model.
[0062] Although the above has shown and described the embodiments of the present application, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and within the scope of information available to the public, the changes, modifications, replacements and variations of the above embodiments made by the ordinary skilled in the art in combination with the technical inspiration given by the present application document can still be covered within the protection scope of the present application.
Claims
1. A multi-station drilling machine for knife shaft tubes, characterized in that: The utility model provides a kind of drilling machine, including first rack (1), second rack (2), drill (7), first clamping column (3) and first telescopic rod (5) are equipped on the first rack (1), second clamping column (4) and second telescopic rod (6) are equipped on the second rack (2), first clamping column (3) and second clamping column (4) are coaxial and opposite arrangement, and can slide along axial direction and rotate around its axis respectively;The one end of first telescopic rod (5) is connected with the one end of first clamping column (3), and the one end of second telescopic rod (6) is connected with the one end of second clamping column (4);The drill bit of drill (7) is located between first clamping column (3) and second clamping column (4).
2. The multi-station knife shaft tube drilling machine of claim 1, wherein: The second rack (2) is further provided with a servo motor (8), and the output shaft of the servo motor (8) is in transmission connection with the second clamping column (4).
3. The multi-station knife arbor bushing drilling machine of claim 2, wherein: The second rack (2) is rotatably connected with a sleeve (9), the output shaft of the servo motor (8) is connected with the sleeve (9) by belt transmission or chain transmission, and the second clamping column (4) is slidably connected with the inner wall of the sleeve (9) and can slide along the axial direction of the second clamping column (4).
4. The multi-station knife arbor bushing drilling machine of claim 3, wherein: The outer side of the second clamping column (4) is provided with a sliding groove (11) extending along the axial direction of the second clamping column (4), and the inner wall of the sleeve (9) is provided with a limiting protrusion extending into the sliding groove (11).
5. The multi-station knife arbor bushing drilling machine of claim 3, wherein: The second rack (2) is further provided with an annular bearing (10), and the annular bearing (10) is sleeved on the sleeve (9).
6. The multi-station tooling machine of claim 1-5, wherein: The first clamping column (3) and the first telescopic rod (5) are connected by a bearing disc (12), and the second clamping column (4) and the second telescopic rod (6) are connected by a bearing disc (12).
7. The multi-station knife arbor bushing drilling machine of claim 6, wherein: The first rack (1) is further provided with a guide pipe (13), and the guide pipe (13) is sleeved on the first clamping column (3).
8. The multi-station knife arbor bushing drilling machine of claim 1, wherein: The drill (7) is provided with two, one of which is fixed to the first rack (1), and the other is fixed to the second rack (2).
9. The multi-station knife arbor bushing drilling machine of claim 1, wherein: The first clamping column (3) and the second clamping column (4) are further provided with a feeding platform (14), and the feeding platform (14) is located directly below the axis of the first clamping column (3), and a feeding telescopic rod (15) is arranged below the feeding platform (14).
10. The multi-station knife arbor bushing drilling machine of claim 9, wherein: The middle part of the feeding platform (14) is further provided with a feeding groove (16), and the feeding groove (16) is located directly below the axis of the first clamping column (3);One side of the feeding platform (14) is further provided with a feeding slide rail (17), and the lower end of the feeding slide rail (17) is connected with the feeding platform (14).