A machining apparatus for radial grooving of long shaft workpieces
By combining the end and rod clamping mechanisms, the vibration and displacement problems of long shaft workpieces during processing are solved, achieving high-precision and high-efficiency radial grooving processing, adapting to complex grooving requirements, and improving the flexibility and stability of the processing device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MICRO PRECISION MACHINING MFG CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional machining equipment is prone to vibration and displacement when clamping long shaft workpieces, which affects the grooving accuracy and quality. In addition, the movement range of the fixing frame and grooving mechanism is limited, making it difficult to adapt to the needs of different lengths and grooving positions.
The long shaft workpiece is stably clamped by an end clamping mechanism and a rod clamping mechanism. Radial grooving is achieved by combining the grooving mechanism. The end clamping mechanism fixes the end and rod of the long shaft workpiece, which enhances the processing stability and prevents the workpiece from shaking or shifting during the grooving process.
It improves the accuracy and quality of radial grooving on long shaft workpieces, enhances processing stability, adapts to the needs of different lengths and grooving positions, and improves processing efficiency and operator convenience.
Smart Images

Figure CN224574796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaft workpiece processing technology, specifically to a processing device for radial grooving of long shaft workpieces. Background Technology
[0002] Long shafts are extremely common and critical components in the mechanical manufacturing field, widely used in numerous industries such as automotive, aerospace, shipbuilding, and energy. For example, in automotive transmission systems, long shafts transmit power, and their radial grooves can be used to install gears, keys, and other transmission components, ensuring stable and efficient power transmission. In the aerospace field, long shafts are often used in critical components such as aircraft landing gear and engine shafts; radial slotting can meet specific connection, positioning, or fluid flow requirements, playing a vital role in ensuring flight safety and improving flight performance. Therefore, the machining quality and efficiency of radial slotting on long shafts directly affect the performance, reliability, and service life of the entire mechanical product.
[0003] Traditional machining equipment often uses simple V-blocks or three-jaw chucks for clamping long shaft workpieces. While V-blocks are simple in structure, they require a high degree of consistency in the diameter of the long shaft workpiece. Even slight deviations in the workpiece diameter can lead to insecure clamping, causing vibration and displacement during machining, thus affecting the accuracy and quality of grooving. When using three-jaw chucks to clamp long shaft workpieces, the limited contact area between the jaws and the workpiece, coupled with uneven distribution of clamping force, can easily cause scratches and deformation on the workpiece surface. This is particularly noticeable for long shaft workpieces made of softer materials or requiring high surface finish.
[0004] Existing machining equipment has certain flaws in its worktable structure design. The limited range of motion of the fixing frame and grooving mechanism makes it difficult to adapt to the machining of long shaft workpieces with varying lengths and grooving position requirements. Some devices' fixing frames and plates can only move linearly in a limited manner, lacking precise guidance and positioning mechanisms during movement. This results in significant time spent on repeated adjustments when changing the machining position, reducing machining efficiency and increasing the workload of operators. Furthermore, due to the inflexible adjustment of the machining position, traditional equipment often cannot meet the machining needs of long shaft workpieces with complex grooving requirements, limiting product diversity and innovation. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a processing device for radial grooving of long shaft workpieces. By using an end clamping mechanism to fix and clamp the end of the long shaft workpiece and a rod clamping mechanism to fix and clamp the rod of the long shaft workpiece, the long shaft workpiece is made more stable during grooving processing. This solves the problem that traditional clamping tools are prone to vibration and displacement during the processing of long shaft workpieces, which affects the accuracy and quality of grooving.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a processing device for radial grooving of long shaft workpieces, including a worktable, an end clamping mechanism for fixing and clamping the end of the long shaft workpiece is provided on one side of the worktable, a rod clamping mechanism for fixing and clamping the rod body of the long shaft workpiece is provided at the front end of the end clamping mechanism, and a grooving mechanism for radially grooving the long shaft workpiece is provided above the rod clamping mechanism.
[0007] Preferably, the grooving mechanism includes a fixed plate on the other side of the workbench, a second cylinder connected to the fixed plate, a movable frame connected to the output end of the second cylinder, a rotary motor on the top of the movable frame, a grooving tool holder connected to the output end of the rotary motor, and a replaceable grooving tool mounted on the grooving tool holder.
[0008] Preferably, the end clamping mechanism includes a fixed frame disposed on one side of the worktable, a first cylinder disposed on the fixed frame, a movable plate connected to the output end of the first cylinder, a first motor disposed on the movable plate, and a fixed clamp connected to the output end of the first motor.
[0009] Preferably, the fixing fixture includes a fixing plate disposed on the output end of the first motor, and a plurality of fixing blocks are disposed on the fixing plate in a cross shape.
[0010] Preferably, the rod clamping mechanism includes a lifting motor disposed at the bottom of the worktable, the output end of the lifting motor is connected to a second motor, and the output end of the second motor is connected to a clamping block.
[0011] Preferably, a gasket is provided on the inner side of the clamping block.
[0012] Preferably, a sliding groove is provided on the workbench, and sliding blocks matching the sliding groove are provided at the bottom of both the fixed frame and the fixed plate.
[0013] Preferably, the workbench is equipped with a control mechanism and a switch button.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the end clamping mechanism to fix and clamp the end of the long shaft workpiece, and the rod clamping mechanism to fix and clamp the rod of the long shaft workpiece, the long shaft workpiece is more stable during grooving, which enhances the stability of the long shaft workpiece during the processing, prevents the workpiece from shaking or shifting during grooving and other processing operations, and ensures processing accuracy.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description
[0016] Figure 1A schematic diagram of the three-dimensional structure of a machining device for radial grooving of long shaft workpieces. Figure 1 .
[0017] Figure 2 A schematic diagram of the three-dimensional structure of a machining device for radial grooving of long shaft workpieces. Figure 2 .
[0018] Figure 3 A schematic diagram of the three-dimensional structure of a machining device for radial grooving of long shaft workpieces. Figure 3 .
[0019] Figure 4 This is a three-dimensional structural diagram of the grooving mechanism of a machining device for radial grooving of long shaft workpieces.
[0020] Figure 5 This is a three-dimensional structural diagram of the end clamping mechanism of a machining device for radial grooving of long shaft workpieces.
[0021] Figure 6 This is a three-dimensional structural diagram of the rod clamping mechanism of a machining device for radial grooving of long shaft workpieces.
[0022] In the diagram: 1. Workbench; 2. End clamping mechanism; 21. Fixed frame; 22. First cylinder; 23. Movable plate; 24. First motor; 25. Fixed clamp; 251. Fixed plate; 252. Fixed clamping block; 3. Rod clamping mechanism; 31. Lifting motor; 32. Second motor; 33. Clamping block; 331. Shim; 4. Slotting mechanism; 41. Fixed plate; 42. Second cylinder; 43. Movable frame; 44. Rotary motor; 45. Slotting tool holder; 46. Slotting tool; 5. Sliding groove; 6. Sliding block; 7. Control mechanism; 8. Switch button. Detailed Implementation
[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0024] Combination Figure 1 , Figure 2 and Figure 3 As shown, a processing device for radial grooving of a long shaft workpiece includes a worktable 1. An end clamping mechanism 2 for fixing and clamping the end of the long shaft workpiece is provided on one side of the worktable 1. A rod clamping mechanism 3 for fixing and clamping the rod body of the long shaft workpiece is provided at the front end of the end clamping mechanism 2. A grooving mechanism 4 for radial grooving of the long shaft workpiece is provided above the rod clamping mechanism 3.
[0025] This utility model proposes a processing device for radial grooving of long shaft workpieces. The worktable 1 serves as the basic platform of the entire processing device, providing a carrier for the installation and support of other components.
[0026] The end clamping mechanism 2 is located on one side of the worktable 1 and is used to fix and clamp the end of the long shaft workpiece. This ensures that the end of the long shaft workpiece remains stable during machining, providing a stable positioning reference for subsequent machining operations.
[0027] The rod clamping mechanism 3 is located at the front end of the end clamping mechanism 2 and is used to fix and clamp the rod part of the long shaft workpiece. In conjunction with the end clamping mechanism 2, it further enhances the stability of the long shaft workpiece during the processing, prevents the workpiece from shaking or shifting during grooving and other processing operations, and ensures processing accuracy.
[0028] The grooving mechanism 4 is installed above the rod clamping mechanism 3 and is used to perform radial grooving on the long shaft workpiece that has been fixed by the end clamping mechanism 2 and the rod clamping mechanism 3, so as to realize the specific processing requirements of the long shaft workpiece.
[0029] When performing radial grooving on a long shaft workpiece, the workpiece is first placed in a suitable position on the worktable 1. Then, the end clamping mechanism 2 is used to securely clamp the end of the workpiece, ensuring accurate and stable positioning. Next, the rod clamping mechanism 3 is used to fix the rod portion of the workpiece, working in conjunction with the end clamping mechanism 2 to keep the entire workpiece stable in both horizontal and vertical directions, preventing movement or vibration during processing. Once the workpiece is securely fixed, the grooving mechanism 4 is activated. The grooving mechanism 4 performs radial grooving on the workpiece according to pre-set parameters (such as grooving depth, width, and position), thus completing the radial grooving task. Throughout the process, the components cooperate to sequentially complete the workpiece positioning, fixing, and processing steps, ensuring processing quality and accuracy.
[0030] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the grooving mechanism 4 includes a fixed plate 41 disposed on the other side of the workbench 1. A second cylinder 42 is connected to the fixed plate 41. The output end of the second cylinder 42 is connected to a movable frame 43. A rotary motor 44 is disposed at the top of the movable frame 43. The output end of the rotary motor 44 is connected to a grooving tool holder 45. A replaceable grooving tool 46 is installed on the grooving tool holder 45.
[0031] Specifically, the grooving mechanism 4 is a complex and precise component used to perform radial grooving operations on long-shaft workpieces. The fixed plate 41 is mounted on the other side of the worktable 1 to ensure the stability of the entire mechanism during operation. The second cylinder 42 is connected to the fixed plate 41 to provide power support for subsequent machining operations.
[0032] The movable frame 43 is connected to the output end of the second cylinder 42, and can move linearly in a specific direction under the action of the second cylinder 42. As an intermediate connecting component, the movable frame 43 transmits the power of the second cylinder 42 to the rotary motor 44 above, and at the same time provides mounting support for the rotary motor 44.
[0033] The rotary motor 44 is located at the top of the movable frame 43 and is the core power component of the grooving mechanism 4. The rotary motor 44 can convert electrical energy into mechanical energy, drive its output end to rotate at high speed, provide rotational power for the grooving cutter 46, and thus realize the cutting process.
[0034] The grooving tool holder 45 is connected to the output end of the rotary motor 44 and is used to mount the grooving tool 46. The grooving tool holder 45 ensures the stability and accuracy of the grooving tool 46 during rotation, while also facilitating its installation and replacement. The grooving tool 46, mounted on the grooving tool holder 45, directly cuts long-shaft workpieces. The grooving tool 46 can be replaced according to different processing requirements to adapt to grooving requirements of different specifications and shapes.
[0035] When radial grooving is required on a long shaft workpiece, the second cylinder 42 is in its initial state, the movable frame 43 is located close to the fixed plate 41, and the grooving cutter 46 is away from the long shaft workpiece, preparing for subsequent feed processing.
[0036] The second cylinder 42 starts working, its output end extends, and pushes the movable frame 43 to move closer to the long shaft workpiece along a straight line. The movable frame 43 drives the rotary motor 44, the grooving tool holder 45 and the grooving tool 46 to move together toward the workpiece, so that the grooving tool 46 gradually approaches the grooving position of the workpiece.
[0037] Once the grooving cutter 46 reaches the predetermined position, the rotary motor 44 starts, and its output drives the grooving cutter holder 45 and the grooving cutter 46 to rotate at high speed. At this time, the second cylinder 42 continues to slowly push the movable frame 43 forward, so that the high-speed rotating grooving cutter 46 contacts the long shaft workpiece and performs cutting processing on the workpiece, forming a radial groove on the workpiece.
[0038] Once the grooving reaches the predetermined depth and length, the second cylinder 42 stops advancing, and the rotary motor 44 stops rotating. Then, the output end of the second cylinder 42 retracts, driving the movable frame 43, rotary motor 44, grooving tool holder 45, and grooving tool 46 back to their initial positions, completing one grooving cycle. If it is necessary to continue processing other locations or perform multiple grooving operations, the above steps can be repeated.
[0039] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the end clamping mechanism 2 includes a fixed frame 21 disposed on one side of the workbench 1. A first cylinder 22 is disposed on the fixed frame 21. The output end of the first cylinder 22 is connected to a movable plate 23. A first motor 24 is disposed on the movable plate 23. The output end of the first motor 24 is connected to a fixed clamp 25.
[0040] Specifically, the end clamping mechanism 2 is used in the machining apparatus for radial grooving of long-shaft workpieces to fix the end of the long-shaft workpiece. The fixing frame 21 is installed on one side of the worktable 1, serving as the basic support structure for the entire end clamping mechanism 2. The first cylinder 22 is mounted on the fixing frame 21 and is a key component for providing power.
[0041] The movable plate 23 is connected to the output end of the first cylinder 22 and can move back and forth in a straight line under the action of the first cylinder 22. The movable plate 23 transmits the power of the first cylinder 22 to the first motor 24 on the one hand, and provides a mounting position for the first motor 24 on the other hand.
[0042] The first motor 24, mounted on the movable plate 23, is the power source for controlling the fixed clamp 25. The fixed clamp 25 is connected to the output end of the first motor 24 and is the component that directly contacts the end of the long shaft workpiece to achieve the clamping function. The fixed clamp 25 ensures that the end of the long shaft workpiece can be firmly and stably clamped, preventing the workpiece from loosening or shifting during processing.
[0043] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the fixing clamp 25 includes a fixing plate 251 disposed on the output end of the first motor 24, and a plurality of fixing clamps 252 are disposed on the fixing plate 251 in a cross shape.
[0044] Specifically, the fixed plate 251 is mounted on the output end of the first motor 24, serving as the mounting base for the fixed clamping block 252. The fixed plate 251 is tightly connected to the output end of the first motor 24 and can rotate synchronously with the rotation of the first motor 24, thereby driving the entire fixed clamping fixture 25 and the end of the clamped long shaft workpiece to adjust the angle.
[0045] Several clamping blocks 252 are arranged in a cross shape on the fixing plate 251. These clamping blocks 252 are evenly distributed along the cross direction of the fixing plate 251, applying clamping force to the end of the long shaft workpiece from different directions. Each clamping block 252 has a specific shape and size, and its surface in contact with the end of the long shaft workpiece is usually designed to increase friction and prevent the workpiece from slipping or loosening during processing, thus achieving stable and reliable clamping.
[0046] Combination Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the rod clamping mechanism 3 includes a lifting motor 31 located at the bottom of the workbench 1, a second motor 32 connected to the output end of the lifting motor 31, and a clamping block 33 connected to the output end of the second motor 32.
[0047] Specifically, the lifting motor 31, as one of the power sources of the entire rod clamping mechanism 3, is fixedly installed at the bottom of the worktable 1. By controlling the rising and falling movements of the lifting motor 31, the subsequent components are driven to adjust in height to accommodate long shaft workpieces of different lengths and processing positions.
[0048] The second motor 32 is connected to the output end of the lifting motor 31 and moves up and down together with the output end of the lifting motor 31. The function of the second motor 32 is to provide power to the clamping block 33, so that while clamping the workpiece rod, the clamping block 33 can fix the workpiece rod according to the processing requirements to meet the subsequent grooving requirements.
[0049] The clamping block 33 is directly connected to the output end of the second motor 32 and is a component that directly contacts the long-shaft workpiece rod to achieve the clamping function. The shape and structure design of the clamping block 33 must fully consider its compatibility with the long-shaft workpiece rod. Usually, its inner surface is designed to match the shape of the workpiece rod, such as a circle or a square, to increase the contact area and improve the stability and reliability of clamping.
[0050] Combination Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a gasket 331 is provided on the inner side of the clamping block 33.
[0051] Specifically, the shim 331 is fitted onto the inner side of the clamping block 33 and is the component that directly contacts the long shaft workpiece rod. The choice of material for the shim 331 is crucial; generally, materials with good elasticity, wear resistance, and a certain degree of friction are selected, such as rubber, silicone, or special engineering plastics.
[0052] Combination Figure 1 , Figure 2 , Figure 3and Figure 4 As shown, a sliding groove 5 is provided on the workbench 1, and sliding blocks 6 matching the sliding groove 5 are provided at the bottom of the fixed frame 21 and the fixed plate 41.
[0053] Specifically, the sliding groove 5 is formed on the worktable 1 and serves as the track for the movement of the fixed frame 21 and the fixed plate 41. Its cross-sectional shape is usually rectangular or T-shaped to form a good fit with the sliding block 6, ensuring that the sliding block 6 can slide smoothly and steadily in the groove, while preventing the sliding block 6 from falling out of the groove.
[0054] The sliding block 6 is respectively disposed at the bottom end of the fixed frame 21 and the fixed plate 41, and is a component that directly contacts the sliding groove 5 and realizes sliding. The shape and size of the sliding block 6 are adapted to the sliding groove 5, and are generally rectangular or have a shape corresponding to the T-shaped groove.
[0055] Combination Figure 1 , Figure 2 and Figure 3 As shown, the workbench 1 is equipped with a control mechanism 7 and a switch button 8.
[0056] Specifically, the control mechanism 7 is the "brain" of the entire machining system, responsible for coordinating and controlling the operation of various components. The control mechanism 7 has an operation panel equipped with various buttons, knobs, displays, and other operating elements for inputting machining parameters, selecting machining modes, and monitoring the machining process. Operators can interact with the controller through the operation panel to achieve flexible control of the machining system.
[0057] The switch button 8 is the direct interaction element between the control mechanism 7 and the operator, used for manually controlling the start, stop, and emergency stop of the machining system. The start button is used to activate the various components of the machining system, bringing them into working condition. Start buttons are typically green to indicate safe and normal operation. The stop button is used to stop the machining system, halting the operation of all components. Stop buttons are generally red so that the operator can quickly locate and press them when needed.
[0058] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A processing device for radial slotting of a long axis workpiece, comprising a worktable (1), characterized in that, The workbench (1) is provided with an end clamping mechanism (2) for fixing and clamping the end of the long shaft workpiece on one side. The end clamping mechanism (2) is provided with a rod clamping mechanism (3) for fixing and clamping the rod body of the long shaft workpiece at the front end. The rod clamping mechanism (3) is provided with a slotting mechanism (4) for radial slotting of the long shaft workpiece above it.
2. The processing apparatus for slotting a long shaft workpiece in the radial direction according to claim 1, characterized by, The grooving mechanism (4) includes a fixed plate (41) set on the other side of the workbench (1), a second cylinder (42) is connected to the fixed plate (41), the output end of the second cylinder (42) is connected to a movable frame (43), a rotary motor (44) is set at the top of the movable frame (43), the output end of the rotary motor (44) is connected to a grooving tool holder (45), and a replaceable grooving tool (46) is installed on the grooving tool holder (45).
3. The processing apparatus for slotting a long shaft workpiece in the radial direction according to claim 1 or 2, characterized in that, The end clamping mechanism (2) includes a fixed frame (21) set on one side of the workbench (1), a first cylinder (22) is set on the fixed frame (21), the output end of the first cylinder (22) is connected to a movable plate (23), a first motor (24) is set on the movable plate (23), and the output end of the first motor (24) is connected to a fixed clamp (25).
4. The apparatus according to claim 3, wherein The fixing fixture (25) includes a fixing plate (251) set on the output end of the first motor (24), and a number of fixing blocks (252) are arranged in a cross shape on the fixing plate (251).
5. The apparatus according to claim 1 or 4, wherein The rod clamping mechanism (3) includes a lifting motor (31) located at the bottom of the workbench (1), the output end of the lifting motor (31) is connected to a second motor (32), and the output end of the second motor (32) is connected to a clamping block (33).
6. The apparatus according to claim 5, wherein A gasket (331) is provided on the inner side of the clamping block (33).
7. The apparatus according to claim 6, wherein The workbench (1) is provided with a sliding groove (5), and the bottom of the fixed frame (21) and the fixed plate (41) are provided with sliding blocks (6) that match the sliding groove (5).
8. The apparatus according to claim 7, wherein The workbench (1) is equipped with a control mechanism (7) and a switch button (8).