Special machine for milling key groove on movable cutter shaft
By combining a hydraulic transfer platform and hydraulic grippers, the problem of keyway milling on the moving cutter shaft was solved, achieving efficient and damage-free machining, reducing labor intensity and costs, and improving machining accuracy and stability.
Patent Information
- Application Number
- CN202423127862.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the existing technology, keyway milling of the moving cutter shaft is difficult to achieve, and the surface of the milled part at the shaft end is easily damaged by compression. During the hoisting process, the tool is easily impacted, resulting in rework.
A hydraulic transfer platform and hydraulic grippers are used in conjunction with a milling cutter to achieve linear motion of the moving cutter shaft and end clamping, avoiding impact and reducing clamping force. Hydraulic cylinders and cooling water pipes are used for precise control and cooling.
It achieves efficient milling of the keyway of the moving cutter shaft, avoids damage to the shaft end surface and tool impact, reduces labor intensity and cost, and improves machining accuracy and stability.
Smart Images
Figure CN223544161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a keyway milling device, specifically to a special machine for milling keyways with a moving cutter shaft. Background Technology
[0002] The moving cutter shaft is a key component of the shredder in agricultural machinery. Its end is typically connected to a pulley via a key, which drives the shaft's rotation. The cutting tools on the shaft shred plant waste such as straw. The moving cutter shaft has cutting tools and other auxiliary workpieces arranged in a staggered pattern, and its large size and weight make it impossible to handle manually or clamp using common milling machines. When milling keyways, only the shaft end can be clamped and fixed, while the rest is supported by forks. This not only results in high labor intensity but also requires excessive clamping force at the shaft end, easily causing crushing damage to the milled surface. Furthermore, fixing the moving cutter shaft requires hoisting, which can easily cause impacts to the cutting tools and other auxiliary workpieces on the shaft, leading to rework. Utility Model Content
[0003] The technical problem to be solved by this utility model is: how to achieve keyway milling on the moving cutter shaft and avoid extrusion damage to the surface of the milled part at the shaft end.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0005] This utility model provides a special machine for milling keyways with a moving cutter shaft, including a fixed bracket. The fixed bracket is equipped with a hydraulic transfer platform and a milling cutter. The hydraulic transfer platform can move in a horizontal straight line and is equipped with two hydraulic grippers arranged opposite to each other along the movement direction of the hydraulic transfer platform. The milling cutter is located on one side of one end of the hydraulic transfer platform and is equipped with a milling cutter holder and a milling cutter motor. The output shaft of the milling cutter motor is connected to the milling cutter holder for transmission, and the working end of the milling cutter holder extends towards the hydraulic transfer platform.
[0006] The beneficial effects of this utility model are:
[0007] Using this invention, the moving cutter shaft moves linearly with the hydraulic transfer platform, enabling the milling cutter on the milling cutter holder to cut into and out of the moving cutter shaft, thus realizing the milling of the keyway; the two ends of the moving cutter shaft are clamped by two opposing hydraulic jaws on the hydraulic transfer platform, avoiding impact on the auxiliary workpiece on the moving cutter shaft; at the same time, the clamping force required at the end of the moving cutter shaft is reduced, avoiding surface damage to the milled part at the end of the moving cutter shaft.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, the hydraulic transfer platform is slidably connected to the fixed support, and the fixed support is provided with a horizontal telescopic rod, the moving end of which is connected to the hydraulic transfer platform; the extension and retraction direction of the horizontal telescopic rod is the same as the movement direction of the hydraulic transfer platform.
[0010] It facilitates the driving of the hydraulic transfer platform along a horizontal straight line, has a simple structure, low cost, and can precisely control the movement speed of the hydraulic transfer platform.
[0011] Furthermore, the fixed bracket is also equipped with a support roller, and the hydraulic transfer platform is mounted on the support roller.
[0012] This facilitates reducing the motion resistance of the hydraulic transfer platform, avoiding mechanical wear, and extending the service life of the sliding connection structure between the hydraulic transfer platform and the fixed support.
[0013] Furthermore, the horizontal telescopic rod is a hydraulic cylinder.
[0014] It facilitates the provision of sufficient driving force and has good motion stability, reducing dimensional errors in keyway milling.
[0015] Furthermore, the horizontal telescopic rod is located below the hydraulic transfer platform, and a hydraulic station is also provided at the lower part of the fixed bracket, with the horizontal telescopic rod mounted on the hydraulic station.
[0016] The distance between the horizontal telescopic rod and the hydraulic station is reduced, saving on hydraulic pipelines; at the same time, the horizontal telescopic rod is shielded by the hydraulic transfer platform, which facilitates the protection of the horizontal telescopic rod.
[0017] Furthermore, the hydraulic gripper includes a vertical telescopic rod, a lower clamping block, and an upper clamping block. Both the vertical telescopic rod and the lower clamping block are fixed on the hydraulic transfer platform, and the moving end of the vertical telescopic rod is connected to the upper clamping block.
[0018] The upper clamping block can be moved upward by extending the vertical telescopic rod. After the moving tool shaft to be processed is placed on the lower clamping block, the upper clamping block can be moved downward by shortening the vertical telescopic rod to clamp the moving tool shaft. It is easy to operate, and has a simple structure and low cost.
[0019] Furthermore, the upper side of the lower clamping block and the lower side of the upper clamping block are respectively provided with V-shaped clamping grooves.
[0020] The moving cutter shaft is held in a V-shaped clamping groove, which provides good stability and increases the surface area of the moving cutter shaft, thus avoiding pressure damage to the surface of the moving cutter shaft.
[0021] Furthermore, the vertical telescopic rod is a hydraulic cylinder.
[0022] It provides sufficient clamping force and has good pressure controllability, making it easy to precisely control the clamping force.
[0023] Furthermore, a cooling water pipe is also fixed on the milling cutter bed, with the outlet end of the cooling water pipe located on one side of the working end of the milling cutter holder.
[0024] The inlet end of the cooling water pipe is used to connect to the coolant pump, which facilitates cooling of the keyway area during milling.
[0025] Furthermore, the milling machine is also equipped with a pipe clamp, and the cooling water pipe is fixed on the pipe clamp.
[0026] The cooling water pipes are detachable, making it easy to replace them with different sizes. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this utility model.
[0028] Figure 2 for Figure 1 Side view
[0029] Figure 3 for Figure 1 Top view.
[0030] Figure 4 This is a schematic diagram of the hydraulic gripper.
[0031] In the accompanying drawings, the technical features represented by each reference numeral are as follows:
[0032] 1-Fixed bracket; 2-Hydraulic transfer platform; 3-Milling cutter machine; 4-Hydraulic gripper; 5-Milling cutter holder; 6-Milling cutter motor; 7-Support roller; 8-Horizontal telescopic rod; 9-Hydraulic station; 10-Vertical telescopic rod; 11-Lower clamping block; 12-Upper clamping block; 13-Clamping groove; 14-Cooling water pipe; 15-Pipe clamp. Detailed Implementation
[0033] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0034] This utility model refers to Figure 1-4 .
[0035] This utility model provides a special machine for milling keyways with a moving cutter shaft, including a fixed bracket 1. The fixed bracket 1 is equipped with a hydraulic transfer platform 2 and a milling cutter machine 3. The hydraulic transfer platform 2 can move in a horizontal straight line and is equipped with two hydraulic grippers 4, which are arranged opposite to each other along the movement direction of the hydraulic transfer platform 2. The milling cutter machine 3 is located on one side of one end of the hydraulic transfer platform 2. The milling cutter machine 3 is equipped with a milling cutter holder 5 and a milling cutter motor 6. The output shaft of the milling cutter motor 6 is connected to the milling cutter holder 5 for transmission. The working end of the milling cutter holder 5 extends towards the hydraulic transfer platform 2.
[0036] principle:
[0037] The transmission from the milling cutter motor 6 to the milling cutter holder 5 is existing technology and can adopt the transmission method of the milling cutter holder 5 on a conventional milling machine. The working end of the milling cutter holder 5 is used to mount the milling cutter and drive it to rotate. After the milling cutter is installed, it extends to the extension line of one end of the moving cutter shaft. During operation, the moving cutter shaft is hoisted onto the hydraulic transfer platform 2, supported and clamped at both ends by two hydraulic grippers 4. As the hydraulic transfer platform 2 moves horizontally, the moving cutter shaft moves along the milling cutter, and the milling cutter cuts into one end of the moving cutter shaft until the required keyway length is reached. Then, the hydraulic transfer platform 2 moves in the opposite direction, and the milling cutter exits the moving cutter shaft, completing the machining.
[0038] Using this utility model, the moving cutter shaft moves linearly with the hydraulic transfer platform 2, enabling the milling cutter on the milling cutter holder 5 to cut into and out of the moving cutter shaft, thus realizing the milling of the keyway; the two opposing hydraulic jaws 4 on the hydraulic transfer platform 2 clamp the two ends of the moving cutter shaft, avoiding impact on the auxiliary workpiece on the moving cutter shaft; at the same time, the clamping force required at the end of the moving cutter shaft is reduced, avoiding surface damage to the milled part at the end of the moving cutter shaft.
[0039] Furthermore, the hydraulic transfer platform 2 is slidably connected to the fixed bracket 1, and the fixed bracket 1 is provided with a horizontal telescopic rod 8. The moving end of the horizontal telescopic rod 8 is connected to the hydraulic transfer platform 2; the extension and retraction direction of the horizontal telescopic rod 8 is the same as the movement direction of the hydraulic transfer platform 2.
[0040] It facilitates the driving of the hydraulic transfer platform 2 along a horizontal straight line, has a simple structure, low cost, and can precisely control the movement speed of the hydraulic transfer platform 2.
[0041] Furthermore, the fixed bracket 1 is also provided with a support roller 7, and the hydraulic transfer platform 2 is located on the support roller 7.
[0042] This facilitates reducing the motion resistance of the hydraulic transfer platform 2, avoids mechanical wear, and extends the service life of the sliding connection structure between the hydraulic transfer platform 2 and the fixed support 1.
[0043] Furthermore, the horizontal telescopic rod 8 is a hydraulic cylinder.
[0044] It facilitates the provision of sufficient driving force and has good motion stability, reducing dimensional errors in keyway milling.
[0045] Furthermore, the horizontal telescopic rod 8 is located below the hydraulic transfer platform 2, and a hydraulic station 9 is also provided at the lower part of the fixed bracket 1, with the horizontal telescopic rod 8 mounted on the hydraulic station 9.
[0046] The distance between the horizontal telescopic rod 8 and the hydraulic station 9 is reduced, saving hydraulic pipelines; at the same time, the horizontal telescopic rod 8 is shielded by the hydraulic transfer platform 2, which facilitates the protection of the horizontal telescopic rod 8.
[0047] Furthermore, such as Figure 4 As shown: The hydraulic gripper 4 includes a vertical telescopic rod 10, a lower clamping block 11 and an upper clamping block 12. The vertical telescopic rod 10 and the lower clamping block 11 are both fixed on the hydraulic transfer platform 2, and the moving end of the vertical telescopic rod 10 is connected to the upper clamping block 12.
[0048] The upper clamping block 12 can be moved upward by extending the vertical telescopic rod 10. After the moving tool shaft to be processed is placed on the lower clamping block 11, the upper clamping block 12 can be moved downward by shortening the vertical telescopic rod 10 to clamp the moving tool shaft. It is easy to operate, and the structure is simple and the cost is low.
[0049] Furthermore, the upper side of the lower clamping block 11 and the lower side of the upper clamping block 12 are respectively provided with V-shaped clamping grooves 13.
[0050] The moving cutter shaft is clamped by the V-shaped clamping groove 13, which provides good stability and increases the surface area of the moving cutter shaft, thus avoiding pressure damage to the surface of the moving cutter shaft.
[0051] Furthermore, the vertical telescopic rod 10 is a hydraulic cylinder.
[0052] It provides sufficient clamping force and has good pressure controllability, making it easy to precisely control the clamping force.
[0053] Furthermore, a cooling water pipe 14 is also fixed on the milling machine 3, and the outlet end of the cooling water pipe 14 is located on the working end side of the milling cutter holder 5.
[0054] The inlet end of the cooling water pipe 14 is used to connect to the coolant pump, which facilitates cooling of the keyway area during milling.
[0055] Furthermore, the milling machine 3 is also equipped with a pipe clamp 15, and the cooling water pipe 14 is fixed on the pipe clamp 15.
[0056] The cooling water pipe 14 is detachable, making it easy to replace cooling water pipes 14 of different specifications.
[0057] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0058] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0059] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.
[0060] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.
[0061] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.
[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.
Claims
1. A special machine for milling keyways with a moving cutter shaft, characterized in that: The device includes a fixed support (1), on which a hydraulic transfer platform (2) and a milling machine (3) are mounted. The hydraulic transfer platform (2) is capable of moving in a horizontal straight line. The hydraulic transfer platform (2) is equipped with two hydraulic grippers (4), which are arranged opposite to each other along the direction of movement of the hydraulic transfer platform (2). The milling machine (3) is located on one side of one end of the hydraulic transfer platform (2). The milling machine (3) is equipped with a milling cutter holder (5) and a milling cutter motor (6). The output shaft of the milling cutter motor (6) is connected to the milling cutter holder (5) for transmission. The working end of the milling cutter holder (5) extends toward the hydraulic transfer platform (2).
2. The special machine for milling keyways with a moving cutter shaft according to claim 1, characterized in that: The hydraulic transfer platform (2) is slidably connected to the fixed bracket (1). The fixed bracket (1) is provided with a horizontal telescopic rod (8). The moving end of the horizontal telescopic rod (8) is connected to the hydraulic transfer platform (2). The extension and retraction direction of the horizontal telescopic rod (8) is the same as the movement direction of the hydraulic transfer platform (2).
3. The special machine for milling keyways with a moving cutter shaft according to claim 2, characterized in that: The fixed bracket (1) is also provided with a support roller (7), and the hydraulic transfer platform (2) is located on the support roller (7).
4. The special machine for milling keyways with a moving cutter shaft according to claim 2, characterized in that: The horizontal telescopic rod (8) is a hydraulic cylinder.
5. The special machine for milling keyways with a moving cutter shaft according to claim 4, characterized in that: The horizontal telescopic rod (8) is located below the hydraulic transfer platform (2), and a hydraulic station (9) is also provided at the lower part of the fixed bracket (1), with the horizontal telescopic rod (8) located on the hydraulic station (9).
6. The special machine for milling keyways with a moving cutter shaft according to claim 1, characterized in that: The hydraulic gripper (4) includes a vertical telescopic rod (10), a lower clamping block (11) and an upper clamping block (12). The vertical telescopic rod (10) and the lower clamping block (11) are both fixed on the hydraulic transfer platform (2), and the moving end of the vertical telescopic rod (10) is connected to the upper clamping block (12).
7. The special machine for milling keyways with a moving cutter shaft according to claim 6, characterized in that: The upper side of the lower clamping block (11) and the lower side of the upper clamping block (12) are respectively provided with V-shaped clamping grooves (13).
8. The special machine for milling keyways with a moving cutter shaft according to claim 6, characterized in that: The vertical telescopic rod (10) is a hydraulic cylinder.
9. The special machine for milling keyways with a moving cutter shaft according to claim 1, characterized in that: The milling machine (3) is also fixed with a cooling water pipe (14), and the outlet end of the cooling water pipe (14) is located on the working end side of the milling cutter holder (5).
10. The special machine for milling keyways with a moving cutter shaft according to claim 9, characterized in that: The milling machine (3) is also equipped with a pipe clamp (15), and the cooling water pipe (14) is fixed on the pipe clamp (15).