Hydraulic device for keyway drilling of vertical machining center

Abstract

The utility model relates to a hydraulic device for keyway drilling of a vertical machining center. The hydraulic device comprises a lower bottom plate, a first stand column, a second stand column, an upper bottom plate, an OK clamp assembly and a hydraulic control assembly. A first stand column and a second stand column are arranged at the top of the lower bottom plate, an OK clamp assembly is arranged between the first stand column and the second stand column, an upper bottom plate is arranged at the tops of the first stand column and the second stand column, and a hydraulic control assembly is further arranged at the top of the lower bottom plate and located on the side, away from the second stand column, of the first stand column. The multi-plunger drilling device can drill a plurality of plungers in key grooves at the same time, can quickly and accurately position workpieces, guarantees the machining precision of the plungers, saves clamp circulation and clamping time, and is simple in structure, easy and convenient to operate, easy to operate by workers and capable of easily achieving one-person multi-machine operation, machining efficiency is improved, and labor intensity of the workers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a hydraulic device for drilling keyways in a vertical machining center. Background Technology

[0002] In the field of machining, keyway drilling is a critical process on vertical machining centers, especially for high-precision components such as plungers. The plunger achieves volume change through its reciprocating motion within the cylinder, thereby fulfilling the functions of oil suction and pressure. During this process, the cylindricity of the plunger is fundamental to ensuring a good seal between it and the cylinder, preventing fluid leakage. Therefore, the machining quality and stability of the plunger are of paramount importance.

[0003] Traditional plunger machining involves turning the plunger into a cylindrical shape followed by drilling. This drilling step requires extremely high precision to avoid roughness affecting fluid flow or causing stress concentration. Subsequently, keyways, planes, and other structural features are machined on a vertical machining center. However, this traditional process has several shortcomings:

[0004] 1. High requirements for turning: Not only does it require high-precision machine tools, but when the demand for plungers is large, the processing time is too long, the machine tool occupancy rate is high, and it affects the processing progress of other parts.

[0005] 2. Cumbersome operation: In traditional processes, only one plunger can be clamped at a time, and the workpiece must be fixed by manually tightening the screw, which is complicated and inefficient.

[0006] 3. Waste of Human Resources: This process cannot allow one person to operate multiple machines, increasing the workload of workers and resulting in a serious waste of human resources. In view of the above problems, the market urgently needs a vertical machining center keyway drilling fixture that can simplify operation, improve machining accuracy, and has strong applicability. Especially for the machining of high-precision components such as plungers, developing an efficient hydraulic fixture has become a top priority. Utility Model Content

[0007] To address the above problems, a hydraulic device for keyway drilling in a vertical machining center is proposed.

[0008] The technical solution of this utility model is as follows: a hydraulic device for keyway drilling in a vertical machining center, comprising a lower base plate, a first column, a second column, an upper base plate, an OK clamp assembly, and a hydraulic control assembly; the first column and the second column are provided on the top of the lower base plate, and multiple OK clamp assemblies are provided inside the first column and the second column. The upper base plate is provided on the top of the first column and the second column, and the hydraulic control assembly is also provided on the top of the lower base plate. The hydraulic control assembly is located on the side of the first column away from the second column.

[0009] Preferably, the lower base plate is fixedly mounted on the machining center workbench by a first screw; a first screw plug is provided on the side of the lower base plate, and a sealing ring is provided between the first screw plug and the lower base plate.

[0010] Preferably, the first column and the second column are fixedly connected to the lower base plate by cylindrical pins, and the first column and the second column are fixedly connected to the upper base plate by second screws.

[0011] Preferably, the OK clamp assembly includes a hydraulic thin cylinder and OK clamps; the hydraulic thin cylinder is fixedly connected to the lower base plate and the upper base plate by screws, and the output end of the hydraulic thin cylinder is connected to and drives multiple OK clamps.

[0012] Preferably, the OK clamp assembly further includes pads; the OK clamp is connected to the hydraulic thin cylinder by screws that play a stabilizing role, and pads are provided on both sides of the OK clamp to ensure that the workpiece will not move during processing and to improve the processing accuracy of the product.

[0013] Preferably, the OK clamp assembly further includes a third screw, and the upper base plate is fixedly connected to multiple OK clamps by the third screw. The upper base plate is rectangular, and the multiple OK clamps are evenly spaced on the central axis of the upper base plate parallel to its long side.

[0014] Preferably, the hydraulic control assembly includes a second plug and a hydraulic control device; the hydraulic control device is fixedly connected to the lower base plate by screws, the hydraulic control device is connected to and drives the hydraulic thin cylinder, the hydraulic control device is provided with second plugs on both sides, and an O-ring is provided between the hydraulic control device and the second plugs to seal its oil port to prevent leakage.

[0015] Preferably, the hydraulic control assembly further includes a directional valve seat and a directional valve; the top of the hydraulic control device is provided with a directional valve seat, the top of the directional valve seat is provided with a directional valve, and an O-ring is provided between the directional valve seat and the directional valve to seal and prevent leakage.

[0016] Preferably, transition joints are provided on both sides of the hydraulic control device.

[0017] Preferably, the transition connector is a male quick-connect connector or a female quick-connect connector.

[0018] The beneficial effects of this utility model are as follows: This utility model can drill multiple plungers in the keyway at the same time, can quickly and accurately position the workpiece, ensure the processing accuracy of the plunger, save the time of fixture transfer and clamping, and has a simple structure and is easy to operate. Workers can easily learn to operate multiple machines by one person, which not only improves processing efficiency, but also reduces the labor intensity of employees. Attached Figure Description

[0019] Figure 1This is a front view of the hydraulic device for keyway drilling in a vertical machining center according to this utility model.

[0020] Figure 2 This is a top view of the hydraulic device for keyway drilling in a vertical machining center according to this utility model.

[0021] Figure 3 for Figure 2 Cross-sectional view of AA.

[0022] The component names corresponding to the various reference numerals in the diagram are as follows:

[0023] 1. Lower base plate; 11. First screw; 12. First plug; 13. Cylindrical pin; 2. First column; 3. Second column; 4. Upper base plate; 41. Second screw; 5. OK clamp assembly; 51. Hydraulic thin cylinder; 52. OK clamp; 53. Third screw; 54. Pad; 6. Hydraulic control assembly; 61. Reversing valve seat; 62. Reversing valve; 63. Second plug; 64. Transition joint; 65. Hydraulic control device. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0025] refer to Figure 1 As shown in the figure, this application discloses a hydraulic device for keyway drilling in a vertical machining center, including a lower base plate 1, a first column 2, a second column 3, an upper base plate 4, an OK clamp assembly 5, and a hydraulic control assembly 6.

[0026] The bottom plate 1 is provided with a first column 2 and a second column 3 at the top. Multiple OK clamp assemblies 5 are provided inside the first column 2 and the second column 3. The top of the first column 2 and the second column 3 is provided with an upper bottom plate 4. The bottom plate 1 is also provided with a hydraulic control assembly 6 at the top. The hydraulic control assembly 6 is located on the side of the first column 2 away from the second column 3.

[0027] The lower base plate 1 is fixedly mounted on the workbench of the machining center by the first screw 11. The side of the lower base plate 1 is provided with a first screw plug 12. A sealing ring is provided between the first screw plug 12 and the lower base plate 1. The sealing is achieved by the first screw plug 12 and the sealing ring to ensure the sealing performance of the lower base plate 1 and prevent hydraulic oil leakage.

[0028] The first column 2 and the second column 3 are fixedly connected to the lower base plate 1 by cylindrical pin 13, and the first column 2 and the second column 3 are fixedly connected to the upper base plate 4 by second screw 41 to ensure the stability of the entire tooling.

[0029] refer to Figure 1 , 2 As shown, the OK clamp assembly 5 includes a hydraulic thin cylinder 51, an OK clamp 52, a third screw 53, and a pad 54; the hydraulic thin cylinder 51 is fixedly connected to the lower base plate 1 and the upper base plate 4 by screws.

[0030] The output end of the hydraulic thin cylinder 51 is connected to and drives multiple OK clamps 52. The OK clamps 52 are connected to the hydraulic thin cylinder 51 by screws. The screws stabilize the OK clamps. Pads 54 are provided on both sides of the OK clamps 52 to ensure that there is no jamming or stopping when clamping the plunger.

[0031] The upper base plate 4 is fixedly connected to multiple OK clamps 52 by a third screw 53. The upper base plate 4 is rectangular, and the multiple OK clamps 52 are evenly spaced on the central axis parallel to the long side of the upper base plate 4 to ensure the consistency of the position when clamping the plunger, ensure that the workpiece will not move during processing, and improve the processing accuracy of the product.

[0032] refer to Figure 1 , 3 As shown, the hydraulic control assembly 6 includes a reversing valve seat 61, a reversing valve 62, a second plug 63, a transition joint 64, and a hydraulic control device 65. The hydraulic control device 65 is fixedly connected to the lower base plate 1 by screws. The hydraulic control device 65 is connected to and drives the hydraulic thin cylinder 51. The hydraulic control device 65 has second plugs 63 on both sides. An O-ring is provided between the hydraulic control device 65 and the second plugs 63 to seal its oil port and prevent leakage.

[0033] The hydraulic control device 65 is provided with a reversing valve seat 61 on the top, and a reversing valve 62 is provided on the top of the reversing valve seat 61. An O-ring is provided between the reversing valve seat 61 and the reversing valve 62 to seal and prevent leakage. This ensures that the fluid flows through a predetermined path in different working positions of the reversing valve 62 and controls the hydraulic thin cylinder 51 to drive and control the OK clamp 52 to clamp the workpiece.

[0034] The hydraulic control device 65 is also provided with transition joints 64 on both sides. The transition joints 64 are male quick-connect joints or female quick-connect joints. In this embodiment, one side of the hydraulic control device 65 is a male quick-connect joint and the other side is a female quick-connect joint. The transition joints 64 are connected to the oil pipes. The transition joints 64 facilitate the connection and disconnection of hydraulic pipelines, and can also effectively prevent hydraulic oil leakage, ensuring the normal working pressure and flow of the hydraulic system. The transition joints 64 can not only connect interfaces of different specifications, so that the hydraulic system can be built smoothly, but also change the connection direction of the hydraulic pipelines, making the pipeline layout more flexible and easy to adapt to complex equipment structures and installation spaces.

[0035] The beneficial effects are as follows: This utility model can drill multiple plungers in the keyway at the same time, which can quickly and accurately position the workpiece, ensure the processing accuracy of the plunger, save the time of fixture transfer and clamping, and has a simple structure and is easy to operate. Workers can easily learn to operate multiple machines by one person, which not only improves processing efficiency, but also reduces the labor intensity of employees.

[0036] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A hydraulic device for keyway drilling in a vertical machining center, characterized in that, It includes a lower base plate (1), a first column (2), a second column (3), an upper base plate (4), an OK clamp assembly (5), and a hydraulic control assembly (6); the lower base plate (1) is provided with a first column (2) and a second column (3) at the top, and multiple OK clamp assemblies (5) are provided inside the first column (2) and the second column (3). The upper base plate (4) is provided at the top of the first column (2) and the second column (3). The lower base plate (1) is also provided with a hydraulic control assembly (6) at the top. The hydraulic control assembly (6) is located on the side of the first column (2) away from the second column (3).

2. The hydraulic device for keyway drilling in a vertical machining center according to claim 1, characterized in that, The lower base plate (1) is fixedly mounted on the workbench of the machining center by the first screw (11); the side of the lower base plate (1) is provided with a first screw plug (12), and a sealing ring is provided between the first screw plug (12) and the lower base plate (1).

3. The hydraulic device for keyway drilling in a vertical machining center according to claim 1, characterized in that, The first column (2) and the second column (3) are fixedly connected to the lower base plate (1) by a cylindrical pin (13), and the first column (2) and the second column (3) are fixedly connected to the upper base plate (4) by a second screw (41).

4. The hydraulic device for keyway drilling in a vertical machining center according to claim 1, characterized in that, The OK clamp assembly (5) includes a hydraulic thin cylinder (51) and OK clamps (52); the hydraulic thin cylinder (51) is fixedly connected to the lower base plate (1) and the upper base plate (4) by screws, and the output end of the hydraulic thin cylinder (51) is connected to and drives multiple OK clamps (52).

5. The hydraulic device for keyway drilling in a vertical machining center according to claim 4, characterized in that, The OK clamp assembly (5) also includes pads (54); the OK clamp (52) is connected to the hydraulic thin cylinder (51) by screws that play a stabilizing role, and pads (54) are provided on both sides of the OK clamp (52) to ensure that the workpiece will not move during processing and to improve the processing accuracy of the product.

6. The hydraulic device for keyway drilling in a vertical machining center according to claim 5, characterized in that, The OK clamp assembly (5) also includes a third screw (53). The upper base plate (4) is fixedly connected to multiple OK clamps (52) by the third screw (53). The upper base plate (4) is rectangular, and the multiple OK clamps (52) are evenly spaced on the central axis of the upper base plate (4) parallel to its long side.

7. The hydraulic device for keyway drilling in a vertical machining center according to claim 4, characterized in that, The hydraulic control assembly (6) includes a second plug (63) and a hydraulic control device (65); the hydraulic control device (65) is fixedly connected to the lower base plate (1) by screws, the hydraulic control device (65) is connected to and drives the hydraulic thin cylinder (51), the hydraulic control device (65) is provided with second plugs (63) on both sides, and an O-ring is provided between the hydraulic control device (65) and the second plugs (63) to seal its oil port to prevent leakage.

8. The hydraulic device for keyway drilling in a vertical machining center according to claim 7, characterized in that, The hydraulic control assembly (6) also includes a reversing valve seat (61) and a reversing valve (62); the hydraulic control device (65) is provided with a reversing valve seat (61) on top, and a reversing valve (62) is provided on top of the reversing valve seat (61). An O-ring is provided between the reversing valve seat (61) and the reversing valve (62) to seal and prevent leakage.

9. The hydraulic device for keyway drilling in a vertical machining center according to claim 8, characterized in that, The hydraulic control device (65) is also provided with transition joints (64) on both sides.

10. The hydraulic device for keyway drilling in a vertical machining center according to claim 9, characterized in that, The transition connector (64) is a male quick-connect connector or a female quick-connect connector.

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