Machining and positioning structure for non-rotating parts
By designing a positioning structure for machining non-rotating parts, and utilizing components such as a chassis, positioning pins, and double-ended screws, precise positioning of parts on a lathe is achieved. This solves the problem that ordinary radial drilling machines cannot achieve high-precision machining, reduces costs, and ensures accuracy.
Patent Information
- Application Number
- CN202520295842.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing technologies cannot meet the high-precision machining requirements of non-rotating parts on ordinary radial drilling machines, and the use of vertical machining centers is costly.
A non-rotational part machining positioning structure was designed, including components such as a chassis, positioning pins, double-ended screws, pressure plates, and push rods. The structure achieves precise positioning and fixation of the part on the lathe through hoisting and multi-point positioning.
It reduces the machining difficulty of non-rotating parts on a lathe, ensures machining accuracy, and reduces costs.
Smart Images
Figure CN223889481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a positioning structure for machining non-rotating parts. Background Technology
[0002] The hydraulic cylinder support is a common part in forklift mast systems. It is a non-rotating shaft structure with a simple structure, but it requires high machining accuracy. The hole accuracy is required to be within 0.02mm. Ordinary radial drilling machines cannot meet the accuracy requirements. If a vertical machining center is used for machining, the cost will be high. In order to reduce the machining difficulty of the workpiece and enable lathes to machine non-rotating parts, a non-rotating part machining positioning structure was designed. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to propose a positioning structure for machining non-rotating parts, reducing the machining difficulty of non-rotating parts on a lathe, lowering machining costs, and ensuring machining accuracy.
[0004] The non-rotational part machining positioning structure proposed in this utility model includes a chassis. A lifting eye screw is threaded through the side of the chassis. Multiple positioning pins are fitted onto the upper surface of the chassis. Double-ended screws are threaded onto the upper surface of each double-ended screw. Pressure plates are fitted onto the surfaces of each double-ended screw and above the pressure plates. Shoulder nuts are threaded onto the surfaces of each double-ended screw and above the pressure plates. Springs are fitted onto the double-ended screws between the chassis and the pressure plates. A push rod is installed between the lower surface of the pressure plates and the chassis. An clearance hole is formed in the center of the chassis surface.
[0005] Preferably, a workpiece is placed on the surface of the chassis, the lower surface of one end of the plurality of pressure plates away from the top rod is in positional contact with the upper surface of the workpiece, and the plurality of positioning pins are in positional contact with the side wall of the workpiece.
[0006] Preferably, the side of the chassis has a lifting eye screw hole for installing the lifting eye screw, and the lower surface of the chassis has a clamping outer diameter.
[0007] Preferably, the surface of the chassis has multiple fixing screw holes for mounting the double-ended screw.
[0008] Preferably, the surface of the chassis has multiple positioning screw holes for mounting the top rod, and a thin nut is threaded onto the bottom of the top rod.
[0009] Preferably, the surface of the chassis has multiple through holes for installing the positioning pins.
[0010] The beneficial effects of this utility model are:
[0011] 1. It explores a new approach, providing conditions for machining non-rotating parts on a lathe, which is innovative;
[0012] 2. It ensures processing accuracy, reduces processing costs, and has high practicality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the workpiece positioning and assembly of the non-rotational part machining positioning structure proposed in this utility model.
[0014] Figure 2 This is a schematic diagram of the chassis structure for the non-rotational parts machining and positioning structure proposed in this utility model.
[0015] Figure 3 This is a schematic diagram of the positioning pin structure for the machining and positioning structure of non-rotational parts proposed in this utility model.
[0016] In the diagram: 1. Chassis; 101. Clearance hole; 102. Clamping outer diameter; 103. Fixing screw hole; 104. Lifting eye screw hole; 2. Positioning stop pin; 3. Top rod; 4. Shoulder nut; 5. Double-ended screw; 6. Pressure plate; 7. Spring; 8. Thin nut; 9. Lifting eye screw. Detailed Implementation
[0017] Reference Figure 1-3 The non-rotating part machining positioning structure includes a chassis 1. A lifting eye screw 9 is threaded through the side of the chassis 1. Multiple positioning pins 2 are fitted on the upper surface of the chassis 1. Double-ended screws 5 are threaded on the upper surface of the chassis 1. Pressure plates 6 are fitted on the surface of the double-ended screws 5. Shoulder nuts 4 are threaded on the surface of the double-ended screws 5 and above the pressure plates 6. Springs 7 are fitted between the double-ended screws 5 and the pressure plates 6. A push rod 3 is installed between the lower surface of the pressure plates 6 and the chassis 1. An clearance hole 101 is opened in the middle of the surface of the chassis 1.
[0018] The workpiece is placed on the surface of the chassis 1. The lower surface of the end of the multiple pressure plates 6 away from the top rod 3 is in positional contact with the upper surface of the workpiece, and the multiple positioning pins 2 are in positional contact with the side wall of the workpiece.
[0019] The side of the chassis 1 has a lifting eye screw hole 104 for installing the lifting eye screw 9. When machining non-rotating parts on a lathe, the chassis 1 needs to be hoisted and placed parallel to the lathe tool. The lifting eye screw 9 is used to lift the chassis 1. The lower surface of the chassis 1 has a clamping outer diameter 102. The clamping outer diameter 102 is provided to facilitate the fixing of the chassis 1.
[0020] The surface of the chassis 1 has multiple fixing screw holes 103 for mounting the double-headed screw 5.
[0021] The surface of the chassis 1 has multiple positioning screw holes for mounting the top rod 3, and a thin nut 8 is threaded onto the bottom of the top rod 3.
[0022] The surface of the chassis 1 has multiple through holes for installing positioning pins 2. In this embodiment, a total of three positioning pins 2 and three pressure plates 6 are provided for positioning the workpiece.
[0023] When using this device, the part is placed on the upper surface of the chassis 1, and positioned by pushing it against the three locating pins 2 in the X and Y directions. Then, the three pressure plates 6 are pushed onto the part, and the shoulder nuts 4 are tightened to clamp the part, ensuring that the center of the hole to be machined on the part is aligned with the center of the outer diameter 102 on the chassis 1. This allows for machining on a lathe according to the required precision, while the clearance hole 101 prevents interference between the tool and the chassis 1 when the tool reaches the bottom of the hole.
Claims
1. A positioning structure for machining non-rotational parts, characterized in that: The system includes a chassis with eye bolts threaded through its side. Multiple locating pins are fitted onto the upper surface of the chassis. Double-ended screws are threaded onto the upper surface of each double-ended screw. Pressure plates are fitted onto the surfaces of each double-ended screw and above the pressure plates. Shoulder nuts are threaded onto the surfaces of each double-ended screw and above the pressure plates. Springs are fitted onto the double-ended screws between the chassis and the pressure plates. A push rod is installed between the lower surface of the pressure plates and the chassis. A clearance hole is provided in the center of the chassis surface.
2. The non-rotational part machining positioning structure according to claim 1, characterized in that: The workpiece is placed on the surface of the chassis, and the lower surface of one end of the plurality of pressure plates away from the top rod is in positional contact with the upper surface of the workpiece, and the plurality of positioning pins are in positional contact with the side wall of the workpiece.
3. The non-rotational part machining positioning structure according to claim 1, characterized in that: The side of the chassis has a lifting eye screw hole for installing the lifting eye screw, and the lower surface of the chassis has a clamping outer diameter.
4. The non-rotational part machining positioning structure according to claim 1, characterized in that: The surface of the chassis has multiple fixing screw holes for mounting the double-ended screw.
5. The non-rotational part machining positioning structure according to claim 1, characterized in that: The surface of the chassis has multiple positioning screw holes for mounting the top rod, and a thin nut is threaded onto the bottom of the top rod.
6. The non-rotational part machining positioning structure according to claim 1, characterized in that: The surface of the chassis has multiple through holes for installing the positioning pins.