Hole turning tool for large shaft piece
By introducing X-axis and Y-axis sliding mechanisms and counterweights into the tooling for turning holes in large shafts, the vibration problem of long-arm tool holders was solved, the machining quality and tool life were improved, the scope of application was expanded, and the degree of automation was enhanced.
Patent Information
- Application Number
- CN202423323277.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When machining large shaft-shaped workpieces on a CNC lathe, the vibration of the long-arm tool post leads to poor machining results and shortened tool life, and may even cause the tool to break or chip.
A machining fixture for large shaft components was designed. It uses an X-axis sliding mechanism and a Y-axis sliding mechanism to drive the tool holder and the tool to move. A counterweight is set on the long-arm tool holder to balance the vibration force. The operation is driven by a motor, and the adjustable counterweight reduces vibration.
It effectively avoids vibration of the long-arm tool holder, improves machining quality and tool life, expands the scope of application, and improves the degree of automation.
Smart Images
Figure CN223734361U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to large -scale shaft processing technical field, concretely relates to a hole turning frock of large -scale shaft piece. BACKGROUND
[0002] The existing center hole mainly adopts numerical control lathe to carry out turning, for large -scale shaft work piece, the size of work piece is bigger, the supporting arm of tool rest is relatively longer, and the tool is fixed at the end of long -arm tool rest, when the tool carries out turning to work piece, the tool and long -arm tool rest will produce tremor, the amplitude of tremor is related to holding depth, vibration not only influences work piece's processing effect, but also will influence the service life of tool to shorten, even lead to the situation of tool breakage, tool breakage. SUMMARY
[0003] The utility model discloses a hole turning frock of large -scale shaft piece, avoid long -arm tool rest vibration, improve processing quality to the shortage of prior art.
[0004] The technical scheme of the utility model's purpose is:
[0005] A hole turning frock of large -scale shaft piece, including horizontal lathe, still including base and tool, be equipped with X -axis sliding mechanism and Y -axis sliding mechanism on the base, Y -axis sliding mechanism sets up on the X -axis sliding block of X -axis sliding mechanism, be equipped with tool rest mounting seat on Y -axis sliding mechanism, fixedly install a long -arm tool rest on the tool rest mounting seat, the long -arm tool rest extends out the tool rest mounting seat, the one end of long -arm tool rest sets up tool rest, the tool is installed on the tool rest, the other end of long -arm tool rest is equipped with counterweight and is matched on long -arm tool rest.
[0006] Further, both ends of the long -arm tool rest are provided with tool rests.
[0007] Further, grooves are formed in the tool rests, and the tools are installed in the tool rest grooves through pads.
[0008] Further, the tool rest mounting seat comprises a support seat and a clamp provided on the support seat, the support seat is fixed on the Y -axis sliding block of the Y -axis sliding mechanism, the clamp comprises two arc blocks, a nut and a connecting rod, the arc surfaces of the two arc blocks are oppositely arranged, the long -arm tool rest is arranged in the two arc blocks, and the long -arm tool rest is fixed on the tool rest mounting seat by cooperation of the nut and the connecting rod.
[0009] Further, a plurality of pressing blocks are further provided on the clamp.
[0010] Further, the counterweight is a hollow cylindrical counterweight.
[0011] Furthermore, the counterweight is composed of multiple counterweight units.
[0012] Furthermore, both the X-axis sliding mechanism and the Y-axis sliding mechanism are driven by motors.
[0013] The above technical solution has the following beneficial effects:
[0014] This invention features a simple structure. By incorporating X-axis and Y-axis sliding mechanisms, the tool holder mounting base and the cutting tool move along the X and Y axes, respectively. This allows for the machining of different center hole depths and diameters on various workpieces, thus expanding its applicability. The long-arm tool holder extends beyond the tool holder mounting base, and a counterweight is installed on the extension. This counterweight helps to balance the vibration force on the long-arm tool holder, preventing vibration and improving workpiece machining quality and tool life.
[0015] Both the X-axis sliding mechanism and the Y-axis sliding mechanism are driven by motors, which makes operation simpler, less labor-intensive, and more automated.
[0016] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of specific embodiment 1;
[0018] Figure 2 for Figure 1 Side view.
[0019] In the attached diagram, 1 is the X-axis drive structure, 1-1 is the X-axis slide rail, 1-2 is the X-axis slider, 2 is the Y-axis drive mechanism, 2-1 is the Y-axis slide rail, 2-2 is the Y-axis slider, 3 is the tool holder mounting base, 3-1 is the support base, 3-2 is the arc-shaped block, 3-3 is the connecting rod, 3-4 is the pressure block, 4 is the long-arm tool holder, 5 is the cutting tool, 6 is the pad block, 7 is the counterweight block, and 8 is the motor. Detailed Implementation Specific Implementation Example 1:
[0021] See Figure 1 and Figure 2As shown, a machining fixture for large shaft components includes a horizontal lathe, a base, a long-arm tool post 4, and a cutting tool 5. The base is equipped with an X-axis sliding mechanism 1 and a Y-axis sliding mechanism 2. The X-axis sliding mechanism 1 includes an X-axis slide rail 1-1 and an X-axis slider 1-2, with the slider 1-2 slidably engaged on the slide rail 1-1. The Y-axis sliding mechanism 2 includes a Y-axis slide rail 2-1 and a slider 2-2, with the slider 2-2 slidably engaged on the slide rail 2-1. The Y-axis sliding mechanism 2 is mounted on the X-axis slider of the X-axis sliding mechanism 1. Both the X-axis sliding mechanism 1 and the Y-axis sliding mechanism 2 are motor-driven, which is more time-saving and labor-saving than manual operation. In this specific embodiment, both the X-axis sliding mechanism 1 and the Y-axis sliding mechanism 2 are ball screw driven mechanisms, which are connected to a motor 8.
[0022] The Y-axis drive mechanism 2 is provided with a tool holder mounting base 3, on which a long-arm tool holder 4 is fixedly mounted. The tool holder mounting base 3 includes a support base 3-1 and a clamp disposed on the support base 3-1. The support base 3-1 is fixed on the Y-axis slider 2-2 of the Y-axis drive mechanism 2. The clamp includes two arc-shaped blocks 3-2, a nut and a connecting rod 3-3. The arc surfaces of the two arc-shaped blocks 3-2 are arranged facing each other. The long-arm tool holder 4 is disposed in the two arc-shaped blocks 3-2. The long-arm tool holder 4 is fixed on the tool holder mounting base 3 by the nut cooperating with the connecting rod 3-3. The fixture is provided with multiple pressure blocks. In this specific embodiment, it includes two arc-shaped blocks, an upper one and a lower one. The lower arc-shaped block is welded and fixed to the support base. The connecting rod is welded and fixed to the support base. The connecting rod has external threads. The upper arc-shaped block is provided with multiple pressure blocks 3-4. The pressure blocks 3-4 have through holes for the connecting rod to pass through. The long-arm tool holder is arranged in the two arc-shaped blocks. The long-arm tool holder is fixed to the tool holder mounting base by a nut cooperating with the connecting rod.
[0023] The long-arm tool holder 4 extends from the tool holder mounting base 3. A tool holder is provided at one end of the long-arm tool holder 4. The tool 5 is mounted on the tool holder. A groove is provided on the tool holder. The tool 5 is mounted in the groove of the tool holder by a pad 6, which facilitates tool replacement. Both the upper and lower ends of the tool holder are provided with rounded chamfers.
[0024] A counterweight 7 is fitted onto the other end of the long-arm tool holder 4, and the counterweight 7 is fitted onto the long-arm tool holder 7 with a clearance fit. The counterweight 7 is composed of multiple counterweight units, which facilitates adjustment of the counterweight weight according to the condition of the shaft hole to be machined, thereby avoiding vibration during the machining process of the long-arm tool holder. The counterweight 7 is a hollow cylindrical counterweight. In this specific embodiment: the length of the tool section of the long-arm tool holder is equal to the length of the extension section.
[0025] Possibly, tool holders are provided at both ends of the long arm tool holder 4. By installing tool holders at both ends of the long arm tool holder, two horizontal lathes are used to correspond to the two ends of the long arm tool holder respectively, so that workpieces can be processed at both ends, and workpieces with different hole depths can also be processed.
[0026] The working principle of this utility model:
[0027] When the shaft hole is being machined, a counterweight is placed on the extended section of the long arm tool holder 4 so that both ends of the long arm tool holder are subjected to force, thereby eliminating the vibration caused by the force being applied to one end of the long arm tool holder.
[0028] Furthermore, the deeper the machining shaft hole, the farther the counterweight is from the tool holder mounting base, or the weight of the counterweight is increased, thereby increasing the counterweight force.
Claims
1. A turning tool for large shafts, comprising a horizontal lathe, characterised in that: Also include the base and the cutter, the base is equipped with X-axis sliding mechanism and Y-axis sliding mechanism, the Y-axis sliding mechanism is arranged on the X-axis sliding block of the X-axis sliding mechanism, Y-axis sliding mechanism is equipped with tool rest mounting seat, the tool rest mounting seat is fixedly installed with a long arm tool rest, the long arm tool rest extends out the tool rest mounting seat, one end of the long arm tool rest is provided with a tool holder, the cutter is installed on the tool holder, the other end of the long arm tool rest is provided with a counterweight, the counterweight is clearance fit on the long arm tool rest.
2. The axle hole tooling for large shafts of claim 1, wherein: Both ends of the long arm tool rest are provided with tool holders.
3. A large shaft workpiece turning tooling according to claim 1 or 2, wherein: The tool holder is provided with a groove, and the cutter is installed in the tool holder groove through a pad.
4. The large shaft turning tooling of claim 1 wherein: The tool rest mounting seat includes a support seat and a clamp arranged on the support seat, the support seat is fixed on the Y-axis sliding block of the Y-axis sliding mechanism, the clamp includes two arc blocks, a nut and a connecting rod, the arc surfaces of the two arc blocks are oppositely arranged, the long arm tool rest is arranged in the two arc blocks, and the long arm tool rest is fixed on the tool rest mounting seat by cooperation of the nut and the connecting rod.
5. A large shaft turning tool as claimed in claim 4, wherein: The clamp is also provided with a plurality of pressing blocks.
6. The large shaft turning tooling of claim 1 wherein: The counterweight is a hollow cylindrical counterweight.
7. The axle hole tooling for large shafts as claimed in claim 1 or 6, wherein: The counterweight is composed of a plurality of counterweight units.
8. The large shaft turning tooling of claim 1 wherein: The X-axis sliding mechanism and the Y-axis sliding mechanism are driven by motors.