A separable drilling jig tool for drilling and its use method

Abstract

The present invention proposes a detachable jig for drilling, which belongs to the technical field of turning auxiliary tools, and includes a fastening bolt, a positioning pin, a jig base plate, a positioning intermediate plate, a leveling base plate, a clamping bolt, a gasket, and a stripper plate; a positioning pin hole and a first threaded hole are provided at the same position on the jig base plate and the positioning intermediate plate; a through guide hole is provided on the jig base plate; a second threaded hole is provided on the positioning intermediate plate, and a positioning cavity is provided in the middle; the stripper plate is detachably fixed to the side of the positioning intermediate plate away from the jig base plate; the leveling base plate is provided on the side of the positioning intermediate plate away from the jig base plate, and a first mounting hole is provided on the leveling base plate, the number and position of which are consistent with the first threaded hole; a through through hole is provided in the middle of the leveling base plate for accommodating the clamping bolt, gasket, and stripper plate. The present invention also proposes a method of use, which solves the problems of the prior art, such as the rapid decline in positioning accuracy, inconvenient operation, and high maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of turning auxiliary tools, and in particular to a separate drilling jig tool for drilling and a use method thereof. Background Art

[0002] A drilling jig is a machine tool fixture used to guide the tool when drilling or reaming holes in a workpiece. It can ensure the positioning accuracy of the drilling, improve drilling efficiency, and reduce the technical requirements for workers.

[0003] like Figures 1 to 3 As shown, the separate drilling template tooling in the prior art includes a flat gasket 1, a guide column 2, a drilling template 3, a pressure plate 4, a positioning plate 5, a base plate 6 and a hand-tightening bolt 7. The drilling template 3, the positioning plate 5 and the base plate 6 are stacked in sequence and positioned by two penetrating guide columns 2. One end of the guide column 2 is provided with a shaft shoulder and the other end is provided with a threaded blind hole. The hand-tightening bolt 7 is threadedly connected to the guide column 2 to achieve axial fixation. The flat gasket 1 is arranged between the flat gasket 1 and the drilling template 3. A rectangular positioning through hole is processed in the middle of the positioning plate 5 for placing the product to be processed 9 and the pressure plate 4. The drilling template 3 is provided with a through hole for guiding the drill bit or reamer. The base plate 6 is also provided with an operating hole for convenient disassembly.

[0004] To use the existing split drilling jig, the operator first removes the hand bolts 7 and flat washers 1, then removes the drilling template 3 to expose the positioning holes in the positioning plate 5. The pressing plate 4 and the product to be processed 9 are then placed and compacted. Finally, the drilling template 3 is installed and secured with the hand bolts 7 and flat washers 1. The prepared jig is then secured to the operating platform, and the machine tool drill bit is guided through the holes in the drilling template 3 to drill the product 9.

[0005] After drilling is completed, the tooling is removed and disassembled. First, the thumb bolts 7 and flat washers 1 are removed. Then, the drilling template 3 is removed. The tooling is then inverted, and the ejector pins are inserted into the operating holes of the base plate 6 to eject the pressure plate 4 and the product 9 to be processed. The pressure plate 4 has two functions: one is to prevent damage to the base plate 6 during drilling; the other is to prevent damage to the product by the ejector pins during disassembly.

[0006] Existing problems with separate drilling jigs are that the drilling template 3 requires frequent assembly and disassembly during machining, resulting in rapid wear between the drilling template 3 and the guide posts 2. This rapidly reduces the positioning accuracy of the drilling template 3 and the qualified rate of the processed products, requiring replacement of the drilling template 3 and guide posts 2, resulting in high maintenance costs. Long-term use has revealed that the through-holes in the drilling template 3, which guide the drill bit or reamer, often show little wear. However, because positioning accuracy cannot be guaranteed, they must be replaced, resulting in significant waste and unnecessary costs. Improvements are urgently needed.

[0007] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0008] The present invention provides a detachable drilling jig tool for drilling processing and a method for using the same, aiming to solve the problems in the prior art of the detachable drilling jig tool, such as rapid decrease in positioning accuracy, inconvenient operation and high maintenance cost due to frequent disassembly and assembly during use.

[0009] A separate drilling jig tool for drilling processing, comprising a fastening bolt, a positioning pin, a drilling jig base plate, a positioning middle plate, a leveling base plate, a clamping bolt, a gasket and a stripper plate;

[0010] The same position of the template base plate and the positioning intermediate plate is provided with a positioning pin hole and a first threaded hole. There are at least two positioning pin holes for installing positioning pins; there are at least two first threaded holes for installing fastening bolts. A through guide hole is provided on the template base plate, and a through disassembly hole is also provided in the middle.

[0011] A positioning cavity is provided in the middle of the positioning intermediate plate for accommodating the product to be processed and realizing positioning. The cross-sectional shape of the positioning cavity is set according to the shape of the product to be processed. A second threaded hole is also provided on the positioning intermediate plate for connecting the stripper plate.

[0012] The stripper plate is detachably fixed to a side of the positioning middle plate away from the template base plate;

[0013] The leveling base plate is arranged on the side of the positioning middle plate away from the drilling template base plate, and the leveling base plate is provided with a first mounting hole, the number and position of which are consistent with the first threaded hole; a through hole is provided in the middle of the leveling base plate for accommodating a tightening bolt, a gasket and a stripping plate.

[0014] Furthermore, the separate drilling template tooling also includes a fixed drill sleeve, and a drill sleeve mounting hole is also provided on the drilling template base plate for installing the fixed drill sleeve. The drill sleeve mounting hole is a stepped through hole, and the fixed drill sleeve is provided with a stepped shaft passing through a guide hole. An interference fit is adopted between the drill sleeve mounting hole and the fixed drill sleeve.

[0015] Furthermore, the fixed drill sleeve is made of CrWMn material.

[0016] Furthermore, the discharge plate is also provided with chip removal holes, the number and positions of the chip removal holes are consistent with the guide holes on the drilling template base plate, and the inner diameter of the chip removal holes is larger than the inner diameter of the guide holes.

[0017] Furthermore, the unloading plate is provided with a second mounting hole, which is a through-hole, and the number and position of the second mounting hole are consistent with those of the second threaded hole.

[0018] Furthermore, the first mounting hole is a through light hole.

[0019] Furthermore, the cross section of the positioning cavity is rectangular as a whole, and exhaust grooves are provided at the four corners of the cross section of the positioning cavity.

[0020] Furthermore, the template base plate and the positioning intermediate plate are both rectangular, and two positioning pin holes and four first threaded holes are provided at the same position of the template base plate and the positioning intermediate plate. The positioning pin holes are arranged diagonally, and the first threaded holes are symmetrically arranged at the four corners. The positioning pin holes and the first threaded holes are both through holes.

[0021] Furthermore, the drilling template base plate is made of CrWMn material.

[0022] Based on the same technical concept, the present invention also proposes a method for using a detachable drilling jig for drilling processing, using the detachable drilling jig, and performing the following steps:

[0023] S1. Install and fix the fixed drill sleeve on the drilling template base plate;

[0024] S2. Install the positioning pins to achieve accurate positioning of the template base plate and the positioning intermediate plate, and then use fastening bolts to connect and fix the leveling base plate, the positioning intermediate plate and the template base plate together;

[0025] S3. Load the product to be processed into the positioning middle plate and compact it. Then, use the compression bolts and gaskets to fix the stripper plate to the positioning middle plate. As a whole, clamp it onto the operating platform for drilling operation.

[0026] S4. After the operation is completed, remove the clamping bolts and gaskets and take away the unloading plate;

[0027] S5. Use the ejector pin to remove the product to be processed through the disassembly hole of the template base plate and separate it from the positioning middle plate.

[0028] The beneficial technical effects achieved by the present invention are:

[0029] During use, there is no need to frequently disassemble and assemble the positioning pins that affect positioning accuracy, thus completely avoiding the technical problem of rapid loss of positioning accuracy due to frequent disassembly and assembly. By adopting a fixed drill sleeve and reducing installation accuracy requirements, the difficulty of operation is reduced while ensuring the positioning accuracy of the drill jig. This extends the service life of the drill jig, improves the qualified rate of parts, improves product consistency, and reduces maintenance costs. The present invention solves the problems of existing separate drill jigs, such as rapid loss of positioning accuracy due to frequent disassembly and assembly, inconvenient operation, and high maintenance costs, and has outstanding substantive features and significant progress.

[0030] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of a separate drilling jig tooling in the prior art;

[0032] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle;

[0033] Figure 3 It is a schematic diagram of the appearance of one of the products to be processed in the present invention;

[0034] Figure 4 It is a structural schematic diagram of one specific embodiment of the present invention;

[0035] Figure 5 yes Figure 4 Cross-sectional view at the middle BB;

[0036] Figure 6 This is a schematic diagram of the leveling base structure of one specific embodiment of the present invention;

[0037] Figure 7 This is a schematic structural diagram of a stripper plate according to one embodiment of the present invention;

[0038] Figure markings: 1. Flat gasket; 2. Guide column; 3. Drill template; 4. Pressure plate; 5. Positioning plate; 6. Base plate; 7. Hand-tightening bolt; 9. Product to be processed; 11. Fastening bolt; 12. Positioning pin; 13. Fixed drill sleeve; 14. Drill template base plate; 15. Positioning intermediate plate; 16. Leveling base plate; 17. Holding bolt; 18. Gasket; 19. Unloader plate; 41. Positioning pin hole; 42. Drill sleeve mounting hole; 50. Positioning cavity; 51. First threaded hole; 52. Second threaded hole; 61. First mounting hole; 91. Chip removal hole; 92. Second mounting hole. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The specific details such as the specific system structure, model, technical parameters, etc. set forth in the following description are merely illustrative for a better understanding of the present embodiment, and are not intended to limit the scope of the present invention. Furthermore, the contents that should be known and understood by those skilled in the art will not be repeated here.

[0040] like Figures 4 to 7As shown, a specific embodiment of a separate drilling template tooling for drilling processing adopts a method of loading and unloading materials from the bottom of the tooling, including fastening bolts 11, positioning pins 12, fixed drill sleeves 13, drilling template base plate 14, positioning intermediate plate 15, leveling base plate 16, tightening bolts 17, gaskets 18 and unloading plates 19.

[0041] The template base plate 14 and the positioning intermediate plate 15 are both rectangular and made of CrWMn material. Positioning pin holes 41 and first threaded holes 51 are provided at the same position on the template base plate 14 and the positioning intermediate plate 15. There are at least two positioning pin holes 41 for installing positioning pins 12 to achieve precise positioning of the template base plate 14 and the positioning intermediate plate 15. There are at least two first threaded holes 51 for installing fastening bolts 11 to achieve connection and fixation of the template base plate 14 and the positioning intermediate plate 15. In this specific embodiment, two positioning pin holes 41 and four first threaded holes 51 are provided at the same position on the template base plate 14 and the positioning intermediate plate 15. The positioning pin holes 41 are provided along the diagonal lines, and the first threaded holes 51 are provided symmetrically at the four corners. Both the positioning pin holes 41 and the first threaded holes 51 are through holes. The specific specifications, quantity, and position of the positioning pin holes 41 and the first threaded holes 51 can be adaptively adjusted according to actual needs, and there is no substantial difference.

[0042] In this specific embodiment, the template base plate 14 is further provided with a drill sleeve mounting hole 42 for mounting the fixed drill sleeve 13. The drill sleeve mounting hole 42 is a stepped through-hole, while the fixed drill sleeve 13 is a stepped shaft with a guide hole extending therethrough. The drill sleeve mounting hole 42 and the fixed drill sleeve 13 utilize an interference fit, with the shaft shoulder providing axial positioning. It should be noted that the guide hole can also be machined directly into the template base plate 14. The solution of this specific embodiment can further extend the service life of the template base plate 14 and reduce maintenance costs. In this specific embodiment, the fixed drill sleeve 13 is made of CrWMn.

[0043] In this specific embodiment, a through disassembly hole is further provided in the middle of the template base plate 14 for disassembling the product 9 to be processed and separating it from the positioning intermediate plate 15 .

[0044] A positioning cavity 50 is provided in the middle of the positioning intermediate plate 15 for accommodating the product 9 to be processed and realizing positioning. The cross-sectional shape of the positioning cavity 50 is set according to the shape of the product 9 to be processed. Figure 3As shown, in this specific embodiment, the product 9 to be processed is a thin rectangular plate-like part with a rectangular notch on one of its long sides. The positioning cavity 50 has an overall rectangular cross-section. A rectangular strip-shaped boss is provided at the notch on the long side of the rectangular plate-like part, further improving the positioning accuracy of the product 9 to be processed and stability during the drilling process. The positioning cavity 50 also has venting grooves at the four corners of the cross-section to prevent scraping or squeezing between the four corners of the product 9 to be processed and the positioning cavity 50, ensuring a smooth fit of the product and improving positioning and processing accuracy.

[0045] A second threaded hole 52 is also provided on the positioning intermediate plate 15 for connecting the unloading plate 19. There are at least two second threaded holes 52. Under the premise of not interfering with the positioning pin hole 41 and the first threaded hole 51, the specific specifications, quantity and position of the second threaded holes 52 can be adaptively adjusted according to actual needs without substantial difference.

[0046] The stripper plate 19 is provided with a second mounting hole 92 and a chip removal hole 91. The second mounting hole 92 is a through-hole, the number and position of which are consistent with the second threaded hole 52, and the inner diameter is determined by the specifications of the clamping bolt 17. The second mounting hole 92 can also be a through-hole threaded hole, but the processing and installation precision requirements are higher. The stripper plate 19 is removably fixed to the side of the positioning intermediate plate 15 away from the drill template base plate 14 by the gasket 18 and the clamping bolt 17. The number and position of the chip removal holes 91 are consistent with the fixed drill sleeve 13, and the inner diameter of the chip removal hole 91 is larger than the inner diameter of the guide hole of the fixed drill sleeve 13. The stripper plate 19 has three functions: first, to support the product 9 to be processed; second, to block the positioning pin 12 from escaping; and third, to provide a chip removal channel for the debris generated by drilling. The inner diameter of the chip removal hole 91 is larger than the inner diameter of the guide hole of the fixed drill sleeve 13 in order to reduce the requirements for installation precision and allow a certain deviation in the installation position of the stripper plate 19 and the positioning intermediate plate 15.

[0047] The leveling base plate 16 is arranged on the side of the positioning intermediate plate 15 away from the drilling template base plate 14. The leveling base plate 16 is provided with a first mounting hole 61. The first mounting hole 61 is a through-hole. The number and position of the first mounting hole 61 are consistent with those of the first threaded hole 51. The inner diameter of the first mounting hole 61 is determined according to the specification of the fastening bolt 11. The first mounting hole 61 is a through hole in order to reduce the requirements for installation accuracy and allow a certain deviation in the installation position of the leveling base plate 16 and the positioning intermediate plate 15. The middle part of the leveling base plate 16 is a through hole for accommodating the clamping bolt 17, the gasket 18 and the stripping plate 19. The leveling base plate 16 has two functions: one is to keep the bottom surface of the split drilling template flat for easy installation and positioning; the other is to provide support and height difference during disassembly to facilitate the separation of the product 9 to be processed from the positioning intermediate plate 15.

[0048] Based on the same technical concept, this specific embodiment also includes a method for using the detachable drilling jig, which is performed in the following steps:

[0049] The fixed drill sleeve 13 is installed and fixed on the drilling template base plate 14.

[0050] The positioning pins 12 are installed to achieve accurate positioning of the template base plate 14 and the positioning intermediate plate 15 , and then the leveling base plate 16 , the positioning intermediate plate 15 and the template base plate 14 are connected and fixed together with the fastening bolts 11 .

[0051] The above steps are in no particular order.

[0052] The product 9 to be processed is loaded into the positioning middle plate 15 and compacted, and then the stripper plate 19 is fixed to the positioning middle plate 15 with the tightening bolts 17 and the gaskets 18, and is clamped as a whole onto the operating platform for drilling operation.

[0053] After the operation is completed, remove the clamping bolts 17 and the gasket 18 and take away the discharge plate 19.

[0054] The product 9 to be processed is disassembled by using a push rod through the disassembly hole of the template base plate 14 to separate it from the positioning intermediate plate 15 .

[0055] The beneficial technical effects achieved by this specific embodiment are:

[0056] During use, there is no need to frequently disassemble and assemble the positioning pins, which could affect positioning accuracy. This completely avoids the technical problem of rapid loss of positioning accuracy caused by frequent disassembly and assembly. By adopting fixed drill sleeves and reducing installation accuracy requirements, the difficulty of operation is reduced while ensuring the positioning accuracy of the drill jig. This extends the service life of the drill jig, improves the qualified rate of parts, improves product consistency, and reduces maintenance costs.

Claims

1. A separate drilling jig for drilling, characterized in that: It includes a fastening bolt (11), a positioning pin (12), a drilling template base plate (14), a fixed drill sleeve (13), a positioning intermediate plate (15), a leveling base plate (16), a clamping bolt (17), a gasket (18) and a stripper plate (19); The same position of the template base plate (14) and the positioning intermediate plate (15) is provided with a positioning pin hole (41) and a first threaded hole (51), and there are at least two positioning pin holes (41) for installing the positioning pin (12); there are at least two first threaded holes (51) for installing the fastening bolts (11); the template base plate (14) is also provided with a drill sleeve mounting hole (42) for installing the fixed drill sleeve (13), the drill sleeve mounting hole (42) is a stepped through hole, the fixed drill sleeve (13) is a stepped shaft, and a through guide hole is provided on the fixed drill sleeve (13), and an interference fit is adopted between the drill sleeve mounting hole (42) and the fixed drill sleeve (13); the middle part of the template base plate (14) is also provided with a through disassembly hole; A positioning cavity (50) is provided in the middle of the positioning intermediate plate (15) for accommodating the product to be processed and achieving positioning. The cross-sectional shape of the positioning cavity (50) is set according to the shape of the product to be processed. A second threaded hole (52) is also provided on the positioning intermediate plate (15) for connecting to the stripper plate (19). The stripper plate (19) is detachably fixed to a side of the positioning intermediate plate (15) away from the template base plate (14); The leveling base plate (16) is arranged on a side of the positioning intermediate plate (15) away from the drilling template base plate (14), and the leveling base plate (16) is provided with first mounting holes (61), the number and position of which are consistent with the first threaded holes (51); a through hole is provided in the middle of the leveling base plate (16) for accommodating a clamping bolt (17), a gasket (18) and a stripping plate (19).

2. The split drilling jig tool according to claim 1, characterized in that: The fixed drill sleeve (13) is made of CrWMn material.

3. The split drilling jig tool according to claim 1, characterized in that: The discharge plate (19) is also provided with a chip removal hole (91).

4. The split drilling jig tool according to claim 1, characterized in that: The stripping plate (19) is provided with second mounting holes (92), which are through-holes, and the number and position of the second mounting holes (92) are consistent with those of the second threaded holes (52).

5. The split drilling jig tool according to claim 1, characterized in that: The first mounting hole (61) is a penetrating light hole.

6. The split drilling jig according to any one of claims 1 to 5, characterized in that: The cross section of the positioning cavity (50) is rectangular as a whole, and exhaust grooves are provided at the four corners of the cross section of the positioning cavity (50).

7. The split drilling jig according to any one of claims 1 to 5, characterized in that: The template base plate (14) and the positioning intermediate plate (15) are both in the shape of a rectangular parallelepiped. Two positioning pin holes (41) and four first threaded holes (51) are respectively provided at the same position of the template base plate (14) and the positioning intermediate plate (15). The positioning pin holes (41) are provided along diagonal corners, and the first threaded holes (51) are symmetrically provided at the four corners. The positioning pin holes (41) and the first threaded holes (51) are both through holes.

8. The split drilling jig according to any one of claims 1 to 5, characterized in that: The drilling template base plate (14) is made of CrWMn material.

9. A method for using a detachable drilling jig for drilling, characterized in that: Using the split drilling jig tooling according to any one of claims 1 to 8, proceed as follows: S1, installing and fixing the fixed drill sleeve (13) on the drill template base plate (14); S2, installing the positioning pins (12) to achieve accurate positioning of the template base plate (14) and the positioning intermediate plate (15), and then connecting and fixing the leveling base plate (16), the positioning intermediate plate (15) and the template base plate (14) together with the fastening bolts (11); S3, the product to be processed is loaded into the positioning middle plate (15) and compacted, and then the stripper plate (19) is fixed to the positioning middle plate (15) with the tightening bolts (17) and the gaskets (18), and the whole is clamped on the operating platform for drilling operation; S4. After the operation is completed, remove the clamping bolt (17) and the gasket (18), and remove the discharge plate (19); S5. Through the disassembly hole of the template base plate (14), the product to be processed is disassembled using a push rod to separate it from the positioning intermediate plate (15).

Images