Spot welding tool for cutter shaft of returning machine

Abstract

The utility model relates to a field returning machine cutter shaft spot welding tool which comprises a machining table, a fixed support, a movable support, a cutter holder clamp and a moving mechanism, the fixed support is installed at one end of the upper end of the machining table, and the movable support is movably installed at the other end of the upper end of the machining table and can move linearly along the machining table to be close to or away from the fixed support. A rotary driving device is arranged on the fixed support and connected with a first cutter shaft clamp, a second cutter shaft supporting piece is assembled on the movable support, the two ends of the cutter shaft are clamped on the first cutter shaft clamp and the second cutter shaft supporting piece respectively, and the moving mechanism is arranged at the upper end of the machining table and connected with the cutter holder clamp. The moving mechanism is used for driving the tool apron clamp to move in the long axis direction of the tool shaft. The tool apron welding device has the advantages that the structural design is simple and reasonable, tool aprons can be welded to the cutter shaft of the returning machine at fixed angles and equal intervals, the welding efficiency and accuracy are high, the labor amount of workers is reduced, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of processing tooling for agricultural machinery equipment accessories, and particularly relates to a spot welding tooling for a rotary cutter shaft of a straw returning machine. Background Art

[0002] The cutter holder of a straw crushing and returning machine is a core component of the straw crushing and returning machine. It is welded to the rotary cutter shaft of the straw returning machine and is used for installing the cutter blades of the straw returning machine. Therefore, its welding position on the cutter shaft is very important, and its welding accuracy is directly related to the overall performance of the straw returning machine.

[0003] Currently, the traditional process of scribing and welding is mostly adopted, and most of them are manually scribed, positioned and welded. However, the scribing and welding process not only has poor progress, but also has low production efficiency and high labor intensity. Therefore, the improvement of the welding device for the cutter holder of the straw returning machine is a problem that needs to be solved at present.

[0004] Based on this, it is necessary to develop a spot welding tooling for the rotary cutter shaft of a straw returning machine to overcome the above technical problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a spot welding tooling for a rotary cutter shaft of a straw returning machine, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the utility model for solving the above technical problems is as follows:

[0007] A spot welding tooling for a rotary cutter shaft of a straw returning machine includes a processing table, a fixed bracket, a movable bracket, a cutter holder clamp and a moving mechanism. The above fixed bracket is installed at one end of the upper end of the above processing table, the above movable bracket is movably installed at the other end of the upper end of the above processing table, and can move linearly along the above processing table to approach or move away from the above fixed bracket. A rotary driving device is provided on the above fixed bracket, the above rotary driving device is connected with a first cutter shaft clamp, a second cutter shaft support member that is rotationally matched with the end of the cutter shaft is assembled on the above movable bracket, both ends of the cutter shaft are respectively clamped on the above first cutter shaft clamp and the above second cutter shaft support member, the above moving mechanism is arranged at the upper end of the above processing table and is connected with the above cutter holder clamp, and the above moving mechanism is used to drive the above cutter holder clamp to move along the long axis direction of the cutter shaft.

[0008] On the basis of the above technical solution, the utility model can be further improved as follows.

[0009] Further, the above first cutter shaft clamp is a hydraulic three-jaw chuck, the above second cutter shaft support member includes two support rollers that are respectively rotatably installed at the upper end of the above movable bracket, and the end of the above cutter shaft is supported between the upper ends of the two above support rollers.

[0010] Further, the above rotary driving device is a hydraulic motor.

[0011] Further, the processing table includes a horizontal tabletop and a support frame provided at the lower end of the tabletop.

[0012] Further, tracks extending to both ends are provided on the processing table, and the lower end of the movable bracket is slidably mounted on the tracks through sliders.

[0013] Further, there are two tracks, which are distributed in parallel at intervals.

[0014] Further, the moving mechanism includes a linear module and a base. The linear module is connected to the base and is used to drive the base to translate along the long axis direction of the tool shaft. The tool holder fixture is mounted on the base.

[0015] Further, a telescopic device is installed on the base. The telescopic device is connected to the tool holder fixture and is used to drive the tool holder fixture to horizontally move along a direction perpendicular to the tool shaft.

[0016] Further, a lifting mechanism is installed on the slider of the linear module, and the base is mounted on the lifting mechanism.

[0017] Further, the tool holder fixture includes a tool holder plate, a positioning pin column, and a limit block. The tool holder plate is a long strip-shaped plate and extends along a direction perpendicular to the tool shaft. One end of it is connected to the telescopic device. A positioning pin column is vertically installed on one side of the other end of the tool holder plate. The limit block is a rectangular block and is fitted on one side of the other end of the tool holder plate, and the limit block is located at one end of the positioning pin column close to the telescopic device.

[0018] The beneficial effects of the present utility model are as follows: The structure design is simple and reasonable, and it can realize welding the tool holder at a fixed angle and equidistantly on the tool shaft of the rotary tiller. The welding efficiency is high and the accuracy is high, reducing the labor intensity of the staff and having a high working efficiency. Description of the Drawings

[0019] Figure 1 is a structural schematic diagram of the spot welding tooling for the tool shaft of the rotary tiller of the present utility model;

[0020] Figure 2 is an assembly structure schematic diagram of the tool holder fixture on the base in the spot welding tooling for the tool shaft of the rotary tiller of the present utility model Figure 1 ;

[0021] Figure 3 is an assembly structure schematic diagram of the tool holder fixture on the base in the spot welding tooling for the tool shaft of the rotary tiller of the present utility model Figure 2 。

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Processing table; 2. Fixed bracket; 3. Movable bracket; 4. Tool holder fixture; 5. Moving mechanism; 7. Tool shaft; 11. Tabletop; 12. Support frame; 13. Track; 41. Tool holder plate; 42. Positioning pin column; 43. Limit block; 51. Linear module; 52. Base; 53. Telescopic device; 61. First tool shaft fixture; 62. Second tool shaft support. Specific embodiments

[0024] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0025] Example: As Figure 1 , 2 , shown in Figure 3, the stubble cleaner tool shaft spot welding tooling of this embodiment includes a processing table 1, a fixed bracket 2, a movable bracket 3, a tool holder fixture 4 and a moving mechanism 5. The above-mentioned fixed bracket 2 is installed at one end of the upper end of the above-mentioned processing table 1. The above-mentioned movable bracket 3 is movably installed at the other end of the upper end of the above-mentioned processing table 1 and can move linearly along the above-mentioned processing table 1 closer to or away from the above-mentioned fixed bracket 2. A rotary drive device is provided on the above-mentioned fixed bracket 2, and the above-mentioned rotary drive device is connected with a first tool shaft fixture 61. A second tool shaft support 62 that rotates in cooperation with the end of the tool shaft 7 is assembled on the above-mentioned movable bracket 3. Both ends of the tool shaft 7 are respectively clamped on the above-mentioned first tool shaft fixture 61 and the second tool shaft support 62. The above-mentioned moving mechanism 5 is arranged at the upper end of the above-mentioned processing table 1 and is connected with the above-mentioned tool holder fixture 4. The above-mentioned moving mechanism 5 is used to drive the above-mentioned tool holder fixture 4 to move along the long axis direction of the tool shaft 7.

[0026] In the stubble cleaner tool shaft spot welding tooling of this embodiment, the movable bracket 3 can move relative to the fixed bracket 2 (the moving direction is along the long axis direction of the tool shaft 7). Therefore, it can adapt to the spot welding of tool holders on tool shafts 7 of different length dimensions. Both ends of the tool shaft 7 are respectively clamped with the first tool shaft fixture 61 and the second tool shaft support 62. During the spot welding process, the displacement of the tool holder fixture 4 in the long axis direction above the tool shaft 7 is adjusted through the moving mechanism 5, and the rotation angle of the tool shaft 7 is adjusted in cooperation with the rotary drive device, so that each time the tool holder fixture 4 can clamp a tool holder and be located at the upper end of the tool shaft 7. Then, manual welding is performed on one side of the tooling to weld the tool holder to the tool shaft 7. As Figure 1 shown, after welding, multiple groups of tool holders are distributed in a spiral shape, or in a long axis direction and circumferentially staggered on the surface of the tool shaft 7. Each tool holder is provided with two (the two tool holders are close to each other and are spaced parallel). The overall structure design of the tooling is simple and reasonable, and it can realize the fixed-angle and equidistant welding of tool holders on the stubble cleaner tool shaft. The welding efficiency is high and the accuracy is high, reducing the labor intensity of the staff, with high work efficiency, and can effectively ensure the key dimensional points of the welded tool holders, improving the work efficiency of spot welding and the welding accuracy of workpieces.

[0027] As a preferred embodiment, the first tool shaft fixture 61 is a hydraulic three-jaw chuck, the second tool shaft support 62 includes two support rollers respectively rotatably mounted on the upper end of the movable bracket 3, and the end of the tool shaft 7 is supported between the upper ends of the two support rollers.

[0028] In the above embodiment, the first tool shaft fixture 61 uses a hydraulic three-jaw chuck commonly used in machine tools or other tools, which can firmly clamp the shaft end of the tool shaft 7. The second tool shaft support 62 can also use two support rollers. The two support rollers are mounted on the upper end of the movable bracket 3 through a wheel frame rotatably connected thereto. The end of the tool shaft 7 only needs to be supported above the two support rollers, and good rolling support can be obtained as the first tool shaft fixture 61 rotates.

[0029] In this embodiment, the rotation driving device uses a hydraulic motor and is connected to a hydraulic system. Each solenoid valve and oil pump of the hydraulic system are respectively connected to a PLC controller, and the electrical units of the first tool shaft fixture 61 are also connected to the same PLC controller to achieve automatic control.

[0030] In this embodiment, the processing table 1 includes a horizontal table top 11 and a support frame 12 provided at the lower end of the table top 11. The table top 11 remains horizontal, facilitating the stable state and operation of the upper components.

[0031] In this embodiment, the processing table 1 is provided with tracks 13 extending to both ends thereof, and the lower end of the movable bracket 3 is slidably mounted on the tracks 13 through sliders. The movable bracket 3 can slide well along the tracks 13, thereby adjusting the distance from the fixed bracket 2 to ensure adaptation to the clamping and rotational movement of tool shafts 7 of different lengths.

[0032] In this embodiment, there are two tracks 13, which are distributed in parallel at intervals.

[0033] In this embodiment, the moving mechanism 5 includes a linear module 51 and a base 52. The linear module 51 is connected to the base 52 and is used to drive the base 52 to translate along the long axis direction of the tool shaft 7. The tool holder fixture 4 is mounted on the base 52. The linear module 51 can use an electrically controlled linear module of a suitable model on the market and is connected to the PLC controller to achieve automatic control operation. The linear module 51 can drive the base 52 and the tool holder fixture 4 to move along the long axis direction of the tool shaft 7, stop at any position in the length direction of the tool shaft 7, and thus perform spot welding of the tool holder at any position in the long axis direction of the tool shaft 7. Its structural design is simple, and the operation is stable and fast.

[0034] As a preferred embodiment, a telescopic device 53 is installed on the base 52, and the telescopic device 53 is connected to the tool holder fixture 4 for driving the tool holder fixture 4 to horizontally move along a direction perpendicular to the tool axis 7.

[0035] In the above embodiment, the telescopic device 53 is designed such that the tool holder fixture 4 can move along a direction perpendicular to the long axis of the tool axis 7, so that the tool holder fixture 4 can be translated in this direction, thereby adapting to the welding and fixing of the tool holders at the upper ends of tool axes 7 with different diameters. The design is relatively simple and ingenious.

[0036] As a preferred embodiment, a lifting mechanism is installed on the slider of the linear module 51, and the base 52 is installed on the lifting mechanism.

[0037] In the above embodiment, the lifting mechanism can adjust the height of the base 52, thereby adjusting the height of the tool holder fixture 4 and the tool holder, ensuring that the tool holder can adapt to tool axes 7 of different sizes and accurately move and fit on the upper end of the tool axis 7 before spot welding.

[0038] As a preferred embodiment, the tool holder fixture 4 includes a tool holder plate 41, a positioning pin 42 and a limit block 43. The tool holder plate 41 is a long strip plate and extends along a direction perpendicular to the tool axis 7. One end of it is connected to the telescopic device 53. A positioning pin 42 is vertically installed on one side of the other end of the tool holder plate 41. The limit block 43 is a rectangular block and is fitted on one side of the other end of the tool holder plate 41, and the limit block 43 is located at one end of the positioning pin 42 close to the telescopic device 53.

[0039] In the above embodiment, the tool holder is a rectangular sheet-shaped seat body, which is vertically spot-welded on the surface of the tool axis 7. The end of the tool holder welded to the tool axis 7 is a circular arc adapted to the surface of the tool axis 7. The tool holder has a pin hole penetrating through both ends. When the tool holder is installed, it is sleeved on the positioning pin 42 through the pin hole and fits on one side of the tool holder plate 41. At the same time, the side of the tool holder just fits the side end of the limit block 43. In this way, the tool holder will not rotate, ensuring that the tool holder can accurately fall on the upper end surface of the tool axis 7 following the movement of the tool holder fixture 4, realizing good welding. The entire tool holder fixture 4 adopts mechanical positioning and assembly, and the design is very simple, which can ensure the stable clamping of the tool holder.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A spot welding tool for a blade shaft of a field return machine, characterized in that: The invention comprises a processing table (1), a fixed support (2), a movable support (3), a tool holder fixture (4) and a moving mechanism (5), wherein the fixed support (2) is mounted on one end of the upper end of the processing table (1), the movable support (3) is movably mounted on the other end of the upper end of the processing table (1), and can be linearly moved along the processing table (1) to approach or move away from the fixed support (2), the fixed support (2) is provided with a rotation driving device, the rotation driving device is connected to a first tool shaft fixture (61), the movable support (3) is equipped with a second tool shaft support member (62) which is rotatably matched with the end of the tool shaft (7), the two ends of the tool shaft (7) are respectively clamped on the first tool shaft fixture (61) and the second tool shaft support member (62), the moving mechanism (5) is arranged on the upper end of the processing table (1), and is connected to the tool holder fixture (4), and the moving mechanism (5) is used to drive the tool holder fixture (4) to move along the long axis direction of the tool shaft (7).

2. A spot welding tool for a blade shaft of a field return machine according to claim 1, characterized in that: The first tool shaft clamp (61) is a hydraulic three-jaw chuck, and the second tool shaft support (62) includes two support rollers rotatably mounted on the upper ends of the movable bracket (3), and the end of the tool shaft (7) is supported between the upper ends of the two support rollers.

3. A spot welding tool for a blade shaft of a field returning machine according to claim 1, characterized in that: The rotary drive device is a hydraulic motor.

4. A spot welding tool for a blade shaft of a field returning machine according to claim 1, characterized in that: The processing table (1) comprises a horizontal table top (11) and a support frame (12) arranged at the lower end of the table top (11).

5. A spot welding tool for a blade shaft of a field returning machine according to claim 1, characterized in that: The processing table (1) is provided with rails (13) extending to both ends thereof, and the lower end of the movable bracket (3) is slidably mounted on the rails (13) via a slider.

6. A spot welding tool for a blade shaft of a field returning machine according to claim 5, characterized in that: The rails (13) are provided with two tracks which are spaced apart and parallel to each other.

7. A spot welding tool for the blade shaft of a field reclamation machine according to any one of claims 1 to 6, characterized in that: The moving mechanism (5) comprises a linear module (51) and a base (52); the linear module (51) is connected to the base (52) and is used to drive the base (52) to translate along the long axis direction of the tool shaft (7); and the tool holder fixture (4) is mounted on the base (52).

8. A spot welding tool for a blade shaft of a field returning machine according to claim 7, characterized in that: A telescopic device (53) is installed on the base (52), and the telescopic device (53) is connected to the tool holder fixture (4) and is used to drive the tool holder fixture (4) to move horizontally along a direction perpendicular to the tool axis (7).

9. A spot welding tool for a blade shaft of a field returning machine according to claim 8, characterized in that: A lifting mechanism is installed on the slider of the linear module (51), and the base (52) is installed on the lifting mechanism.

10. A spot welding tool for a blade shaft of a field reclamation machine according to claim 8, characterized in that: The tool holder fixture (4) comprises a tool holder plate (41), a positioning pin (42) and a limit block (43); the tool holder plate (41) is a long strip plate and extends in a direction perpendicular to the tool shaft (7); one end of the tool holder plate (41) is connected to the telescopic device (53); one side of the other end of the tool holder plate (41) is vertically provided with the positioning pin (42); the limit block (43) is a rectangular block and is fitted on one side of the other end of the tool holder plate (41); and the limit block (43) is located at one end of the positioning pin (42) close to the telescopic device (53).

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