Drilling positioning tool for vertical machining center
By designing a vertical machining center drilling positioning tool, using structures such as positioning mandrel and positioning shaft sleeve, the problem of high accuracy requirements but cumbersome operation in the processing of face position at the end of the reducer accessories is solved, and simplified operation and improved production efficiency is achieved. , adapt to workpieces of different specifications, reduce costs and improve the accuracy of finished products.
Patent Information
- Application Number
- CN202323350105.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-09
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-09
AI Technical Summary
The existing technology has problems such as high accuracy requirements but complicated operation and low production efficiency in the processing of face position at the end of the reducer. Especially on large-scale production lines, CNC machine tools have high coordinate positioning accuracy but complex operation, and manual scribing and positioning requires flipping the workpiece. This leads to poor accuracy and waste of resources when drilling scale specifications are too high, and the utilization rate is low, resulting in increased processing costs.
A vertical machining center drilling positioning tool is designed, including bottom plate, positioning mandrel, positioning shaft sleeve, press plate and tooling nut. The accurate positioning and stability of the workpiece is achieved through positioning pins and springs, supporting the flip processing of the workpiece, and simplifying it. Structure and operation, adapt to workpieces of different specifications, and realize flow processing without flipping.
On the premise of ensuring the accuracy of the workpiece hole position, the operation process is simplified, production efficiency is improved, and costs are reduced. By replacing the positioning sleeve to adapt to workpieces of different specifications, the commonality of the tooling and the accuracy of the finished product are increased.
Smart Images
Figure CN222269359U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a positioning tool, in particular to a tool for drilling and positioning a reducer accessory. Background Art
[0002] As we all know, the end face holes of reducer accessories (such as connecting flanges, etc.) have high position requirements, which affect the accuracy of the whole machine during installation and use. Its processing generally adopts methods such as direct drilling with CNC machine tool coordinate positioning, drilling with radial drill plus drilling jig positioning and leading holes, and manual marking positioning and leading holes to ensure the relative position of each end face hole. These process methods have their own advantages and disadvantages on large-scale production lines: the coordinate positioning of the machine tool leading hole is realized by the stroke of the machine tool. Due to the use of coordinate positioning, the accuracy is more accurate, but the operation is more cumbersome due to the clamping correction limit; manual marking positioning requires flipping the workpiece, and due to the limited weight of the workpiece, it requires the cooperation of the hoist, resulting in poor processing accuracy and low production efficiency; the most commonly used method for general workpiece processing is to use a drilling jig to fix and match the box specifications. Although this method is simple, when there are many box specifications, a large number of drilling jigs need to be produced, resulting in waste of resources and low utilization, which ultimately leads to increased processing costs. Summary of the invention
[0003] In view of the above technical deficiencies, the utility model proposes a vertical machining center drilling positioning tooling for the end hole position processing of reducer accessories. Under the premise of ensuring the end hole position accuracy, it simplifies the structure, facilitates operation and improves production efficiency.
[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a vertical machining center drilling positioning tooling includes a base plate, a positioning sleeve seat is installed on the base plate through a positioning core shaft, a positioning sleeve is installed on the positioning sleeve seat, and a pressure plate and a tooling nut are installed on the positioning sleeve in sequence.
[0005] The pressing plate and the tooling nut are located above the positioning sleeve, the positioning sleeve is located at the bottom of the positioning sleeve seat, and the workpiece that needs to be drilled is installed between the pressing plate and the positioning sleeve. The positioning sleeve is located in the upper middle part of the positioning sleeve seat, the pressing plate and the positioning sleeve are close to each other, and the workpiece that needs to be drilled is installed between the positioning sleeve and the positioning sleeve seat, and the workpiece that needs to be drilled is connected to the bottom plate through the assembly of the positioning pin and the positioning sleeve.
[0006] A plurality of locating pin holes at different distances are provided on the base plate to accommodate workpieces that require flip-over drilling. Springs are installed in the locating pin holes and at the bottom of the locating pins to provide support. When the locating pins are not needed, they do not need to be removed. Once the connecting flange is in place, the locating pins can be pressed into the base plate.
[0007] The beneficial effects of the utility model are: under the premise of ensuring the accuracy of the workpiece hole position, the structure is simplified, the operation is convenient, the production efficiency is improved, and the replacement of positioning sleeves with different specifications can achieve the common use of the same kind of workpieces (parts) of different specifications. At the same time, when the workpiece is turned over for processing, the first processing surface is used as the positioning reference, which increases the accuracy of the finished product, increases the commonality of the positioning tooling, and further reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is an assembly diagram of the utility model.
[0009] Figure 2 It is a schematic diagram of another embodiment of the utility model. Implementation
[0010] In order to make the technical problems and beneficial effects solved by the utility model clearer and more intuitive, the following is a further detailed description in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not intended to limit the utility model.
[0011] As shown in the embodiment: Figure 1 , Figure 2 As shown, a vertical machining center drilling positioning tool used for end surface hole processing of reducer accessories includes a base plate 1, a positioning sleeve seat 9 is installed on the base plate 1 through a positioning mandrel 2, a positioning sleeve 3 is installed on the positioning sleeve seat 9, and a pressure plate 4 and a tooling nut 5 are installed in sequence on the positioning sleeve 3.
[0012] like Figure 1 As shown, the pressing plate 4 and the tooling nut 5 are located above the positioning sleeve 3, and the positioning sleeve 3 is located at the bottom of the positioning sleeve seat 9. The workpiece 8 (such as the connecting flange) that needs to be drilled is installed between the pressing plate 4 and the positioning sleeve 3 to ensure the accuracy of the center position of the workpiece (connecting flange) that needs to be drilled. After the connecting flange is installed, the pressing plate and the tooling nut are installed in sequence to tighten the connecting flange. The pressing plate 4 has a cutout that is the same size as the installation thread, which is convenient for disassembly without withdrawing all the threads; the tooling nut 5 has a circular stop, which can be used to fix the pressing plate and tighten without deviation. The connecting flange that does not require flipping can be processed at the same time using this structural method, and there is no need to use the locating pins and locating sleeves for installing the connecting flange.
[0013] like Figure 2As shown, the positioning sleeve 3 is located in the upper middle part of the positioning sleeve seat 9, and the pressure plate 4 is close to the positioning sleeve 3. The positioning sleeve 3 and the positioning sleeve seat 9 are used to install the workpiece 8 that needs to be drilled. The workpiece 8 that needs to be drilled is connected to the bottom plate 1 (the positioning pin 7 and the positioning sleeve 6 are both installed in the bottom plate 1) through the assembly of the positioning pin 7 and the positioning sleeve 6 (the positioning sleeve is installed outside the positioning pin). A number of positioning pin holes 10 with different distances are provided on the bottom plate 1 for installing the positioning pin 7 and the positioning sleeve 6. A spring 11 is installed in the positioning pin hole 10 and at the bottom of the positioning pin 7 to provide support. The spring, positioning pin and positioning sleeve are installed in the positioning pin hole in sequence, and the connecting flange with the first surface processed with the drilling hole is turned over, and then pressed. Figure 2 As shown in the figure, the locating sleeve is inserted between the locating sleeve seat to determine the center position of the connecting flange, and then the connecting flange is rotated. The locating pin will be pressed into the bottom plate plane by the unprocessed surface of the upper connecting flange. Because of the action of the spring under the locating pin, the connecting flange is rotated at the same time. When the processed hole and the locating pin that have been drilled coincide with the position, the locating pin will automatically pop out through the spring to clamp the processed hole of the connecting flange. At this time, the relative positions of the mounting holes on both sides of the connecting flange that need to be processed are fixed.
[0014] For some connecting flanges that can be drilled without turning over, it is only necessary to Figure 1 Assemble and process as shown in the figure. The connecting flange that needs to be turned over (both sides of which need to be drilled) should be pressed first. Figure 1 Indicate assembly processing, and then proceed Figure 2 Schematic diagram of the assembly process of the flip connection flange. The positioning mandrel is assembled in the base plate without disassembly and replacement, and then the positioning sleeve seat is installed to use the positioning sleeve to determine the center position of the processed connection flange. It only needs to replace the positioning sleeve to adapt to connection flanges of different specifications, so that the common use of connection flanges of different specifications can be achieved, which is convenient for later maintenance and saves costs. The CNC machine tools with the original technology repeatedly lead holes and drill holes, which are limited by clamping and correction. The operation is cumbersome and inefficient. Manual marking and positioning require flipping the workpiece, and the accuracy is poor due to the weight of the workpiece. Now the improvement uses the drilling and positioning tooling of the vertical machining center, which does not need to repeatedly confirm the position with a meter. The operation is simple and easy to use. The width of the base plate is also expanded so that it can process two connection flanges at the same time. After the drilling process on the first side of the connection flange is completed, it can be directly flipped over and the second side can be processed to form a flow process. Figure 1 , Figure 2 Both are installation methods indicated when the connecting flange needs to be turned over for processing. Except for the first connecting flange that needs to be marked to determine the position, the two embodiments of this tooling can be used to perform rapid flow processing in sequence.
[0015] The above is only an example of the present invention and cannot be used to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the principles and criteria of the present invention should be included in the protection scope of the present invention.
Claims
1. A vertical machining center drilling positioning tool, including a base plate, characterized in that: A positioning sleeve seat is arranged on the bottom plate through a positioning mandrel, a positioning sleeve is arranged on the positioning sleeve seat, and a pressing plate and a tooling nut are arranged on the positioning sleeve in sequence.
2. The vertical machining center drilling positioning tool according to claim 1, characterized in that: The pressing plate and the tooling nut are located above the positioning sleeve, and the positioning sleeve is located at the bottom of the positioning sleeve seat. A workpiece that needs to be drilled is installed between the pressing plate and the positioning sleeve.
3. The vertical machining center drilling positioning tool according to claim 1, characterized in that: The positioning sleeve is located in the upper middle part of the positioning sleeve seat, the pressure plate is against the positioning sleeve, and the positioning sleeve and the positioning sleeve seat are used to install the workpiece that needs to be drilled. The workpiece that needs to be drilled is connected to the base plate through the assembly of the positioning pin and the positioning sleeve.
4. The vertical machining center drilling positioning tool according to claim 3 is characterized in that: A plurality of positioning pin holes at different distances are arranged on the bottom plate to adapt to the workpieces that need to be turned over and drilled. Springs are arranged in the positioning pin holes and at the bottom of the positioning pins.