Tool clamp for machining side face hole of bearing seat
By designing a fixture for machining the side holes of the bearing seat and using a combination of convex components and positioning components, the problems of bearing seat slippage and coaxiality during machining were solved, thereby improving machining accuracy and glass yield.
Patent Information
- Application Number
- CN202422636446.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the existing technology, the bearing seat is prone to slipping due to vibration during the processing, affecting the processing quality and accuracy, and it is difficult to complete the coaxiality requirements of the surfaces on both sides through one clamping, resulting in a decrease in the glass yield.
A fixture is designed, which includes a convex component and a positioning component. The convex component prevents the bearing seat from moving longitudinally, and the positioning component prevents lateral movement. The assembly buffer is provided by the clearance groove, so that the processing of the holes on both sides can be completed in one clamping.
It effectively prevents the movement of the bearing seat during the processing, improves the processing accuracy and quality, ensures coaxiality, improves the glass yield rate, and enhances the flexibility and fault tolerance of assembly.
Smart Images
Figure CN223431257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a fixture for processing side holes of a bearing seat. Background Art
[0002] In order to ensure the yield rate of substrate glass production, the bearing seat has very high requirements for the hole accuracy of both sides in the length direction. At present, it is usually placed vertically on the equipment workbench in the width direction, and a reverse pressure plate is used and a right-angle milling head is used for separate processing. However, during the processing, it was found that the side of the width direction of the bearing seat is positioned as the bottom surface. Due to the vibration of the cutting force and the small contact area between the width direction dimension of the bearing seat and the workbench, no matter whether the reverse pressure plate triangle block, screw or nut mechanism is used for fastening, the bearing seat is always prone to slippage, affecting the processing quality of the bearing seat.
[0003] However, during the forming process, the short roller mechanism of a G8.5-generation substrate glass production line requires multiple bearing seats. The production line's operating cycle is generally 4-5 years, and the short roller mechanism may need to be replaced for various reasons. Only by ensuring that the machined bearing seats are of the right size and have good interchangeability can the production line's replacement needs be met. Therefore, improving the machining accuracy and quality of the bearing seats is crucial to maintaining the stable and efficient operation of the production line.
[0004] Although CNC equipment can meet the precision requirements of machining dimensions, coaxiality must be ensured during hole machining. To ensure coaxiality, it is best to complete all hole processes on both sides of the longitudinal direction in one clamping.
[0005] Therefore, how to provide a fixture for machining the side holes of the bearing seat, which can not only avoid the slippage of the bearing seat due to vibration during the machining process, but also ensure the coaxiality requirements of the hole machining through one clamping, has become a technical problem that needs to be overcome urgently by current technical personnel in this field. Summary of the Invention
[0006] The purpose of the utility model is to provide a fixture for machining the side holes of a bearing seat, so as to overcome the problem in the existing machining technology that the glass yield rate is affected due to the inability to ensure the machining accuracy and quality of the bearing seat.
[0007] The utility model solves the above technical problems through the following technical solutions:
[0008] A fixture for machining side holes of a bearing seat, comprising
[0009] The convex component is used to prevent the bearing seat from moving longitudinally; a positioning component with the same width is connected along the length direction of the convex component, and the positioning component is higher than the height of the convex component to prevent the bearing seat from moving laterally.
[0010] Further, the yielding slot is arranged on the transition line of the convex component and intersects with the positioning component.
[0011] Further, the yielding slot has a diameter of 8 mm and a depth of 10 mm, and the vertical distance between the center of the yielding slot and the transition line of the convex component is 4 mm.
[0012] Further, the length of the convex component is 270 mm, the width of the convex component is 70 mm, the width of the rest of the convex component is 150 mm, the height of the convex component is 5 mm, and the height of the rest of the convex component is 20 mm.
[0013] Further, the length of the positioning component is 30 mm, the width is 150 mm, and the height is 30 mm.
[0014] Further, the convex component is made of carbon steel material.
[0015] Further, the carbon steel material is Q235 carbon structural steel.
[0016] Further, the positioning component is made of carbon steel material.
[0017] Further, the carbon steel material is Q235 carbon structural steel.
[0018] Further, the convex component and the positioning component are integrally formed.
[0019] Compared with the prior art, the positive progress effect of the utility model lies in that:
[0020] The utility model discloses a combination design of the convex component and the positioning component, which not only realizes the stable locking of the bearing seat in the horizontal direction and the vertical direction, effectively suppresses any moving tendency of the bearing seat in the machining process, and thus improves the machining precision and quality of the bearing seat.
[0021] And, on the basis of maintaining the original design size, the yielding slot is arranged as a buffer zone in the assembly process. BRIEF DESCRIPTION OF DRAWINGS
[0022] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0023] Figure 1 This is the main view of the utility model;
[0024] Figure 2 It is a top view of the utility model;
[0025] Figure 3 This is an assembly drawing of the utility model and the bearing seat.
[0026] Among them, 1. convex component; 2. boss; 3. positioning component; 4. clearance groove; 5. bearing seat; 6. boss top surface; 7. inner side surface of positioning component; 8. transition line of convex component. DETAILED DESCRIPTION
[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0033] The present invention will be further described in detail below with reference to the accompanying drawings, which are intended to explain rather than limit the present invention.
[0034] See also Figures 1-2 A tooling fixture for processing side holes of a bearing seat includes a convex component 1, which is used to prevent the bearing seat 5 from moving longitudinally; a positioning component 3 with the same width as the convex component 1 is connected along the length direction of the convex component 1, and the positioning component 3 is higher than the height of the convex component 1, which is used to prevent the bearing seat 5 from moving laterally.
[0035] In particular, it also includes a clearance groove 4, which is arranged in the length direction where the transition line 8 of the male component intersects with the positioning component 3.
[0036] In particular, the diameter of the clearance groove 4 is 8 mm, the depth is 10 mm, and the vertical distance between the center of the clearance groove 4 and the transition line 8 of the male component is 4 mm.
[0037] Specifically, the length of the convex component 1 is 270 mm, the width of the boss 2 of the convex component 1 is 70 mm, the width of the remaining portion of the convex component 1 is 150 mm, the height of the boss 2 of the convex component 1 is 5 mm, and the height of the remaining portion of the convex component 1 is 20 mm.
[0038] Specifically, the positioning component 3 has a length of 30 mm, a width of 150 mm, and a height of 30 mm.
[0039] Particularly, the male component 1 is made of carbon steel.
[0040] Particularly, the positioning assembly 3 is made of carbon steel.
[0041] Particularly, the carbon steel material is Q235 carbon structural steel.
[0042] In particular, the convex assembly 1 and the positioning assembly 3 are integrally formed.
[0043] The manufacturing process of the tooling fixture is as follows:
[0044] According to the outer dimensions and processing positions of the bearing seat, the outer dimensions of the tooling fixture are designed, and the material is selected as Q235 carbon structural steel.
[0045] First, select the tooling fixture to be processed, and the outer dimensions are:
[0046] (length x width x height: mm) 300 x 150 x 30 mm, wherein the size of the bottom fixing surface is 300 x 150 x 20 mm.
[0047] On the upper surface of the tooling fixture to be processed, take the length of the tooling fixture as the reference, and mill a concave platform with a size of (length x width x height: mm) 270 x 150 x 5 mm.
[0048] Next, take the length end used in the above step as the reference, and take the concave platform surface in the above step as the height direction reference, according to the size of the bearing seat 5 height direction bottom 270 x 70 x 5 mm, process a 5 mm deep convex platform 2, the outer dimensions of the convex platform 2 are (length x width x height: mm) 270 x 70 x 5 mm.
[0049] In order to make the bearing seat 5 bottom and the fixture upper surface closely fit, when the width of the tooling fixture is processed to 70 mm, a φ8 end mill is used to extend 10 mm from the length of 270 mm on both sides of the width, and two accommodation grooves 4 are processed, the diameter of the accommodation groove 4 is 8 mm, and the center position is 84 mm away from the transition line of the convex assembly. For specific positions, please refer to Figure 2 That is, additional space is added to the original design size, which can be used as a fault tolerance area during assembly, ensuring that even in the presence of slight assembly errors or minor deviations in part size, the bearing seat can be successfully installed in place, thereby avoiding the case that the bearing seat side assembly is not in place.
[0050] At the accommodation end of the convex platform 2, a positioning assembly 3 will appear, the width of the convex platform 2 in the middle is 70 mm and the height is 5 mm. At this time, the upper surface of the middle part of the convex platform 2 is the positioning reference in the height direction of the bearing seat. The width of the two sides of the tooling fixture is symmetrical, each leaving a width of 37.5 mm, and the positioning assembly 3 is 10 mm longer than the non-convex platform 2 part of the convex assembly 1, which is the positioning reference in the length direction of the bearing seat. The outer dimensions of the convex platform 2 are (length x width x height: mm) 270 x 70 x 5 mm, and its left side and top surface are used as the positioning reference in the width and height direction of the bearing seat, respectively.
[0051] When machining the holes at both ends of the length of the bearing seat 5, first secure the fixture to the machine's workbench, with the fixture's length parallel to the machine's Y-axis and one end of the positioning assembly 3 in the positive direction of the machine's Y-axis. Use a dial indicator to calibrate the fixture's linearity, ensuring a straightness of ≤0.01mm. Then, tighten the two pressure plate assemblies. The positioning reference surface on the side of the fixture is parallel to the side of the fixture itself, so only the fixture's linearity needs to be verified to ensure the bearing seat's linearity.
[0052] Place the bottom surface of the bearing seat 5 on the top surface 6 of the boss of the fixture, and fit one end of the bearing seat φ72 tightly with the inner side surface 7 of the positioning component. During all the processes of processing the apertures at both ends of the bearing seat, the length and width dimensions of the bearing seat have been processed to meet the requirements, and the height direction reference and bottom groove have been processed.
[0053] First, fasten the two sets of pressure plates to the upper surface of the carrying arm of the bearing seat 5 in the length direction. When fixing, the external dimensions of the right-angle milling head, various types of end mills, drills, and chamfering cutters must be considered separately to avoid interference during processing. At the same time, when fixing, sufficient operating space must be provided for process inspection and measurement.
[0054] Using computer programming software, φ72 and φ80 holes, step holes, and end faces are processed respectively, and the processing results are measured. Only after they are qualified can the next process be carried out.
[0055] Use the reverse pressure plate method to fix the two sets of pressure plates for fixing the bearing seat hand arm to the upper surface of the bottom plate of the bearing seat, and then perform height processing on the upper surface of the bearing seat hand arm to ensure that the total height is 120mm.
[0056] See also Figure 3 Assembly diagram of the fixture and bearing seat: The bottom of the bearing seat abuts against the top surface 6 of the boss, and the wide side of the bearing seat abuts against the positioning assembly 3. The combined design of the convex assembly and the positioning assembly not only secures the bearing seat in both the horizontal and vertical directions, but also effectively curbs any potential movement of the bearing seat during machining, thereby improving the machining accuracy and quality of the bearing seat. Furthermore, using this fixture to assemble the bearing seat completes all machining steps for the holes on both sides of the bearing seat's length in a single step. This single clamping ensures coaxiality between the holes, thereby improving the yield rate of the liquid crystal substrate glass.
[0057] Furthermore, while maintaining the original design dimensions, a relief groove is provided as a buffer zone during assembly. This ensures that the bearing seat can be installed smoothly and accurately even in the face of slight assembly errors or minor deviations in component dimensions, enhancing assembly flexibility and fault tolerance.
[0058] The above merely illustrates the technical thought of the present application and cannot limit the protection scope of the present application, and any modification made on the basis of the technical scheme according to the technical thought of the present application falls within the protection scope of the present application.
Claims
1. A fixture for machining side holes of a bearing seat, characterized in that: include The convex component (1) is used to prevent the bearing seat (5) from moving longitudinally; a positioning component (3) having the same width as the convex component (1) is connected along the length direction of the convex component (1), and the positioning component (3) is higher than the height of the convex component (1) to prevent the bearing seat (5) from moving laterally.
2. A fixture for machining side holes of a bearing seat according to claim 1, characterized in that: It also includes a clearance groove (4) arranged in the length direction where the transition line (8) of the convex component intersects with the positioning component (3).
3. The fixture for machining the side hole of a bearing seat according to claim 2, characterized in that: The diameter of the relief groove (4) is 8 mm, the depth is 10 mm, and the vertical distance between the center of the relief groove (4) and the transition line (8) of the convex component is 4 mm.
4. The fixture for machining a side hole of a bearing seat according to claim 1, characterized in that: The length of the male component (1) is 270 mm, the width of the boss (2) of the male component (1) is 70 mm, the width of the remaining portion of the male component (1) is 150 mm, the height of the boss (2) of the male component (1) is 5 mm, and the height of the remaining portion of the male component (1) is 20 mm.
5. The fixture for machining the side hole of a bearing seat according to claim 1, characterized in that: The positioning component (3) has a length of 30 mm, a width of 150 mm and a height of 30 mm.
6. A fixture for machining side holes of a bearing seat according to claim 1, characterized in that: The male component (1) is made of carbon steel.
7. A fixture for machining side holes of a bearing seat according to claim 6, characterized in that: The carbon steel material is Q235 carbon structural steel.
8. A fixture for machining side holes of a bearing seat according to claim 1, characterized in that: The positioning component (3) is made of carbon steel.
9. A fixture for machining side holes of a bearing seat according to claim 8, characterized in that: The carbon steel material is Q235 carbon structural steel.
10. A fixture for machining side holes of a bearing seat according to claim 1, characterized in that: The convex component (1) and the positioning component (3) are an integrally formed structure.