Cutting chamber vertical seat boring die clamp
By designing a cutting chamber stand boring jig fixture and utilizing a combination of boring bar and boring tool, the problem of insufficient machining accuracy of the central shaft hole in photovoltaic wafer slicing machine was solved, achieving high-precision silicon wafer cutting and improving cutting accuracy and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies make it difficult to achieve high-precision shaft hole processing in photovoltaic slicing machines, resulting in insufficient silicon wafer cutting accuracy, affecting the cutting line tension and silicon wafer thickness, and failing to meet the requirements of ±0.1mm dimensional accuracy and micron-level surface flatness.
A cutting chamber stand-up boring jig fixture was designed, including components such as a base plate, support base, boring bar, boring sleeve, and boring tool. By combining the boring bar and boring tool, the workpiece can be accurately fixed and bored. The boring bar is driven by the power head of a floor-type boring machine or a special machine to perform fine boring operations.
It achieves high-precision machining of workpieces, ensuring the accuracy and yield of silicon wafer cutting, meeting the requirements of ±0.1mm dimensional accuracy and micron-level surface flatness, and improving the stability of the equipment and cutting quality.
Smart Images
Figure CN223997832U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of workpiece processing equipment, specifically relating to a cutting chamber stand boring die fixture. Background Technology
[0002] The precision requirements for silicon wafer cutting in photovoltaic slicing machines are directly related to the accuracy of the shaft holes. Silicon wafer cutting must meet dimensional accuracy of ±0.1mm and micron-level surface flatness. Even minute deviations in the support shaft holes can lead to uneven cutting line tension, thus affecting the silicon wafer thickness (e.g., target thickness of 0.18–0.2mm) and yield. Therefore, high precision in the shaft holes is a core condition for ensuring the long-term stable operation of the equipment. Positional accuracy: The center distance and coaxiality requirements between the shaft holes are extremely high.
[0003] In photovoltaic slicing machines, the coaxiality of the two-axis holes typically needs to be controlled within 0.015 to ensure that the support shaft operates without offset, thus preventing vibration or bending during silicon wafer cutting. Current technology primarily uses horizontal machining centers or high-precision milling and boring machines, which place high demands on the precision of the processing equipment. Consequently, some general-purpose equipment cannot meet the requirements for high-precision precision boring operations. Utility Model Content
[0004] The present invention mainly addresses the technical problems existing in the prior art by providing a cutting chamber stand boring jig.
[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cutting chamber stand boring jig fixture, including a base plate, with support seats provided on both the left and right sides of the top of the base plate, a workpiece placed between two of the support seats, an inner cavity for observation opened in the middle of the workpiece, and insertion seats symmetrically arranged on the top of each support seat, each insertion seat being provided with a fixed boring sleeve, and a boring bar inserted between two opposing insertion seats, the boring bar... One end of the boring bar passes through the through hole in the workpiece that requires precision boring and extends into the insertion seat on the other side. Extension seats are inserted into both the surface of the boring bar and the surface where they connect to the workpiece. A boring tool is inserted into the outward-facing end of the extension seat, and the other end of the extension seat is inserted into the boring bar. A tapered locating pin screw is inserted into the top of the end of the boring bar corresponding to the end into which the extension seat is inserted. The extension seat is mounted on the boring bar via the tapered locating pin screw. A rubbing ring with a shaft head is inserted into one side of the boring bar, and a floating joint is fitted onto the surface of the shaft head.
[0006] Preferably, a limiting groove is provided on the side of the fixed boring sleeve, and a boring sleeve screw is inserted into the bottom of the side of the plug-in seat corresponding to the insertion of the fixed boring sleeve, and the outer ring of the end of the boring sleeve screw is connected to the limiting groove.
[0007] Preferably, annular grooves are provided at the inner diameter of both ends of the fixed boring sleeve, and multiple longitudinal grooves are provided inside the fixed boring sleeve, which are connected to the annular grooves at both ends.
[0008] Preferably, multiple side positioning seats are provided on the side where the workpiece connects to the base plate, and two support plates are provided on the opposite side of each side positioning seat. The workpiece is installed on the base plate through the side positioning seats and support plates.
[0009] The beneficial effects of this utility model are as follows: This patent is mainly composed of a base plate, a support seat, a boring bar, a boring sleeve, a precision boring unit, a floating joint, etc. The tooling is fixedly installed on the base plate through a side positioning seat and a support plate, which achieves the effect of precise fixation.
[0010] The support base and fixed boring sleeve are used to support the boring bar, and the boring sleeve screw serves to prevent the boring sleeve from rotating. The boring tool and extension seat are installed on the boring bar for boring the shaft hole. The floating joint is mainly used to connect the boring bar to the power equipment. The power used in this patent can be a floor-type boring machine or a power head similar to a special machine to drive the boring bar for boring, so that the entire equipment can achieve the effect of precision boring when installed on the power equipment. Moreover, the mold structure is simple and easy to install. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0012] Figure 2 This is a three-dimensional structural diagram of the present invention without the workpiece installed;
[0013] Figure 3 This is a top view of the structure of this utility model without the workpiece installed;
[0014] Figure 4 yes Figure 2 A magnified structural diagram at point A in the middle;
[0015] Figure 5 yes Figure 2 A magnified structural diagram of point B in the middle.
[0016] In the diagram: 1. Base plate; 11. Side positioning seat; 12. Support plate; 2. Support seat; 21. Insertion seat; 22. Fixed boring sleeve; 221. Annular groove; 222. Longitudinal groove; 23. Limiting groove; 24. Boring sleeve screw; 3. Workpiece; 31. Inner cavity; 4. Boring rod; 41. Floating joint; 42. Shaft head; 43. Extension seat; 44. Boring tool; 45. Conical positioning pin screw. Detailed Implementation
[0017] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0018] Example: A cutting chamber stand boring jig fixture, such as Figures 1-5 As shown, the device includes a base plate 1, with support seats 2 on both the left and right sides of the top of the base plate 1. A workpiece 3 is placed between two support seats 2. The workpiece 3 has an inner cavity 31 for observation in the middle. Each support seat 2 has a symmetrically arranged insertion seat 21 on the top left and right. Each insertion seat 21 has a fixed boring sleeve 22. A boring bar 4 is inserted between two opposing insertion seats 21. One end of the boring bar 4 passes through the through hole of the workpiece 3 that needs to be precision bored to the insertion seat 21 on the other side. The surface of the boring bar 4 and the workpiece 3 are connected to each other by an extension seat 43. The boring tool 44 is inserted into the outward end of the extension seat 43, and the other end of the extension seat 43 is inserted into the boring bar 4. A conical locating pin screw 45 is inserted into the top of the end of the boring bar 4 corresponding to the end of the extension seat 43 inserted into the interior. The extension seat 43 is installed on the boring bar 4 by the conical locating pin screw 45. A shaft head 42 is inserted into the friction ring on one side of the boring bar 4. A floating joint 41 is sleeved on the surface of the shaft head 42.
[0019] The side of the fixed boring sleeve 22 is provided with a limiting groove 23. The bottom of the plug-in seat 21 corresponding to the side into which the fixed boring sleeve 22 is inserted is provided with a boring sleeve screw 24. The outer ring of the end of the boring sleeve screw 24 is connected to the limiting groove 23. The inner diameter of both ends of the fixed boring sleeve 22 is provided with annular retention grooves 221. Multiple longitudinal retention grooves 222 are provided inside the fixed boring sleeve 22. The multiple longitudinal retention grooves 222 are connected to the annular retention grooves 221 at both ends.
[0020] Multiple side positioning seats 11 are provided on the side where the workpiece 3 connects to the base plate 1. Two support plates 12 are provided on the opposite side of each side positioning seat 11. The workpiece 3 is installed on the base plate 1 through the side positioning seats 11 and the support plates 12.
[0021] The principle of this utility model is as follows: After the workpiece 3 is installed to the limit position of the multiple support plates 12 on the base plate 1, the side positioning seat 11 is installed to the side of the support plate 12 to fix the workpiece 3. Then, the boring bar 4 is inserted through the plug-in seat 21 on the top of the support seat 2 on one side. At the same time, the fixed boring sleeve 22 is sleeved between the plug-in seat 21 and the boring bar 4. The top of the fixed boring sleeve 22 is limited to the plug-in seat 21 by the boring sleeve screw 24. The boring bar 4 is rotatably connected to the fixed boring sleeve 22. It achieves better rotation effect through the annular groove 221 and the longitudinal groove 222 on the temporal part of the fixed boring sleeve 22. The extension seat 43 and the boring tool 44 are installed on the holes on both sides of the workpiece 3 that need to be precision bored, so that the workpiece 3 can be precision bored better.
[0022] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.
Claims
1. A cutting chamber stand boring jig fixture, comprising a base plate (1), characterized in that: Support seats (2) are provided on both the left and right sides of the top of the base plate (1). A workpiece (3) is placed between the two support seats (2). An inner cavity (31) for observation is opened in the middle of the workpiece (3). A plug-in seat (21) is symmetrically arranged on the top of each support seat (2). A fixed boring sleeve (22) is provided in each plug-in seat (21). A boring bar (4) is inserted between the two opposing plug-in seats (21). One end of the boring bar (4) passes through the through hole of the workpiece (3) that needs to be precision bored to the plug-in seat (21) on the other side. The surfaces of the workpiece (3) and the workpiece (4) are all fitted with extension seats (43). A boring bar (44) is inserted into one end of the extension seat (43) facing outward. The other end of the extension seat (43) is inserted into the boring bar (4). A conical locating pin screw (45) is inserted into the top of the end of the boring bar (4) corresponding to the end into which the extension seat (43) is inserted. The extension seat (43) is installed on the boring bar (4) by the conical locating pin screw (45). A shaft head (42) is inserted into one side of the boring bar (4). A floating joint (41) is sleeved on the surface of the shaft head (42).
2. The cutting chamber stand boring jig fixture according to claim 1, characterized in that: The fixed boring sleeve (22) has a limiting groove (23) on its side. The bottom of the plug-in seat (21) corresponding to the side where the fixed boring sleeve (22) is inserted is fitted with a boring sleeve screw (24). The outer ring of the end of the boring sleeve screw (24) is connected to the limiting groove (23).
3. The cutting chamber stand boring jig fixture according to claim 2, characterized in that: The fixed boring sleeve (22) has an annular retention groove (221) at the inner diameter of both ends. The fixed boring sleeve (22) has multiple longitudinal retention grooves (222) in the interior, and the multiple longitudinal retention grooves (222) are connected to the annular retention grooves (221) at both ends.
4. The cutting chamber stand boring jig fixture according to claim 1, characterized in that: Multiple side positioning seats (11) are provided on the side of the connection between the workpiece (3) and the base plate (1). Two support plates (12) are provided on the opposite side of each side positioning seat (11). The workpiece (3) is installed on the base plate (1) through the side positioning seats (11) and the support plates (12).