Angular plane flat grinding clamp for shaft parts
By designing a flat grinding fixture for angular surfaces of shaft parts, and utilizing a combination of a fixed base, a support plate, and locking screws, the problem of stable clamping of the output shaft during angular flat grinding was solved, achieving high-precision machining results and cost reduction.
Patent Information
- Application Number
- CN202423206039.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
When performing angular grinding on the bottom of the output shaft, because its main body is triangular prism-shaped, it is difficult to clamp it stably, which causes the part to rotate easily, and the machining plane does not match the preset position, affecting the symmetry of the part and the quality of the product.
A planar grinding fixture for shaft parts is adopted, including a fixed base, a support plate and a locking screw. The parts are stably fixed by the cooperation of the triangular prism through hole and the threaded hole, preventing rotation and radial movement. Electromagnetic adsorption is used for further fixation.
This technology ensures the stability of parts during the surface grinding process, guarantees machining accuracy, and limits the runout of the part plane to no more than 0.08, thereby improving machining accuracy and reducing production costs.
Smart Images
Figure CN223617496U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machining, and specifically relates to a flat grinding fixture for angular planes of shaft parts. Background Technology
[0002] When performing angular grinding on the bottom of the output shaft, because its main body is triangular prism-shaped, it is difficult to clamp stably. Traditional machining methods make shaft parts prone to rotation, and the machining plane does not match the preset position, which affects the symmetry of the part. The product quality is difficult to meet the drawing requirements and quality problems are likely to occur. Utility Model Content
[0003] This invention addresses the shortcomings of traditional methods by employing a clamping tool for angular planar grinding of shaft-type parts. This tool enables stable fixation of the parts during processing, eliminates the vibration and rotation of the parts during symmetrical grinding, reduces processing instability, and ensures that the processing accuracy meets the manufacturing technical requirements.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A surface grinding fixture for angular planes of shaft parts is provided, including a fixed base, a support plate, and locking screws;
[0006] The fixed base is provided with a triangular prism through hole, and a support plate is placed on the bottom surface of the prism through hole; a threaded hole is opened outward from the center of the bottom surface of the prism through hole;
[0007] The part insertion pad has a prism through hole for supporting the plate. The locking screw engages with the threaded hole. The top of the locking screw pushes against the supporting plate and moves inward until the three square planes milled along the circumference of the part in the middle are pressed against the two waist surfaces of the prism through hole and the upper surface of the supporting plate to prevent the part from rotating.
[0008] Furthermore, the prism through hole is parallel to the bottom surface of the base, and the center of this surface has a threaded hole that mates with the locking screw. During the clamping process, the support plate is placed in the gap between the bottom surface and the part, and the size of the support plate is determined according to the clamping part.
[0009] Furthermore, the cross-section of the prism through-hole is an equilateral triangle.
[0010] Furthermore, after the fixed base and the support plate clamp the part, the locking screw is inserted into the threaded hole in the fixed base, and the part is clamped by pushing the support plate.
[0011] Furthermore, the width of the support plate is smaller than the width of the bottom surface of the prism through hole.
[0012] Furthermore, the fixing base is fixed by electromagnetic adsorption.
[0013] The beneficial effects are that the shaft-like parts can be easily clamped and fixed, preventing rotation and radial movement during symmetrical surface grinding. This ensures that the runout of the ground surface relative to the bottom edge is no more than 0.08, resulting in good part symmetry. It significantly improves machining accuracy and reduces production costs and processing difficulty. It is also easy to implement. Attached Figure Description
[0014] Figure 1 This is an isometric drawing of a planar grinding fixture for shaft parts according to the present invention.
[0015] Among them, 1: fixed base, 2: support plate, 3: locking screw.
[0016] Figure 2 This is a schematic diagram of a type of shaft part (output shaft).
[0017] Figure 3 This is a schematic diagram of a shaft-type part (output shaft) held in a planar grinding fixture.
[0018] Figure 4 This is a schematic diagram of a angular plane grinding fixture for clamping a shaft-type part (output shaft).
[0019] Figure 5 A surface grinding fixture for clamping a shaft-type part (output shaft). Figure 4 Sectional view of AA. Detailed Implementation
[0020] To better utilize this utility model, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.
[0021] Please refer to the instruction manual appendix. Figure 1-5 A flat grinding fixture for angular planes of shaft parts includes: a fixed base 1, a support plate 2, and a locking screw 3. The bottom surface of the fixed base 1 with a threaded hole is inserted between the support plates 2, and the shaft part is inserted between the two. The fixing and limiting are completed by turning in the locking screw 3.
[0022] The fixed base 1 has a square structure with a regular triangular prism through hole at the center. One bottom surface of the through hole is parallel to one bottom surface of the fixed base 1. A threaded through hole is provided at the center of this plane, and its size is adapted to the locking screw 3.
[0023] The support plate 2 is a square plate that is inserted into the bottom surface of the fixing base 1, which has a threaded hole. This restricts the rotation and movement of the inserted shaft parts, and the plate is secured by a locking screw 3 screwed into the fixing base 1.
[0024] 1. Determine the dimensions of the inner prism hole of the fixed base 1 and the support plate 2 according to the dimensions of the clamping part. After the part is installed in the fixed base 1 and the support plate 2, the support plate 2 is placed in the fixed base 1 with the threaded hole at the bottom edge, and the distance between the support plate 2 and the bottom edge is less than 3mm.
[0025] 2. Insert the locking screw 3 into the threaded hole at the bottom of the fixing base 1, rotate it inward until it hits the support plate 2, and then rotate it inward 2 turns.
[0026] 3. Place the assembled base 3 into the surface grinder and position it so that the locking screw 3 is vertical and the bottom of the base 3 is horizontal. Then activate the electromagnetic adsorption to fix it.
[0027] Example 1
[0028] When performing surface grinding on the output shaft, the two bottom planes must be ground symmetrically, ensuring that the runout of the bottom edge relative to the surface being ground is no greater than 0.08, the surface roughness is 0.8μm, and deformation and rotation are not allowed during the processing. The specific implementation method of this patent is described below:
[0029] 1. Based on the output shaft dimensions, set the length of the triangular prism inside the fixed base to 22mm, round the corners to R0.3mm, and set the dimensions of the support base plate to 25mm×20.5mm×1.3mm;
[0030] 2. Install the output shaft into the fixed base and push it forward to limit its position, ensuring that the gap between the output shaft and the fixed base is above the threaded hole. Insert the locking screw into the threaded hole to press against the support plate, and then turn the locking part inward by 2 turns. Figure 3 As shown;
[0031] 3. Place the assembled device into the machine tool and position it. Activate the electromagnetic adsorption for fixation. Set the position parameters and grinding parameters. Run the program to complete the angular grinding of the output shaft.
[0032] The above description is merely an embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any non-substantial improvements to the present utility model should be within the protection scope of the present utility model.
Claims
1. A surface grinding fixture for angular planes of shaft-type parts, characterized in that, Includes a fixed base (1), a support plate (2), and locking screws (3); The fixed base (1) is provided with a triangular prism through hole, and a support plate (2) is placed on the bottom surface of the prism through hole; a threaded hole is opened outward from the center of the bottom surface of the prism through hole; The part insertion pad has a prism through hole of the support plate (2), and the locking screw (3) is engaged with the threaded hole. The top of the locking screw (3) pushes against the support plate (2) and moves inward until the three square planes milled along the circumference of the part in the middle are pressed against the two waist surfaces of the prism through hole and the upper surface of the support plate (2) to prevent the part from rotating.
2. The angular plane grinding fixture for shaft parts according to claim 1, characterized in that, The prism through hole is parallel to the bottom surface of the fixed base (1). The center of this surface is provided with a threaded hole that mates with the locking screw (3). During the clamping process, the support plate (2) is placed in the gap between the bottom surface and the part. The size of the support plate (2) is determined according to the clamping part.
3. The angular plane grinding fixture for shaft parts according to claim 1, characterized in that, The cross-section of the prism through hole is an equilateral triangle.
4. A planar grinding fixture for shaft-type parts according to claim 1, characterized in that, After the fixed base (1) and the support plate (2) clamp the part, the locking screw (3) is inserted into the threaded hole in the fixed base (1) and the part is clamped by pushing the support plate (2).
5. A planar grinding fixture for shaft-type parts according to claim 1, characterized in that, The width of the support plate (2) is less than the width of the bottom surface of the prism through hole.
6. A planar grinding fixture for shaft-type parts according to claim 1, characterized in that, The fixed base (1) is fixed by electromagnetic adsorption.